GCC Code Coverage Report
Directory: ../../../ffmpeg/ Exec Total Coverage
File: src/libavcodec/h264_slice.c Lines: 1376 1704 80.8 %
Date: 2019-11-18 18:00:01 Branches: 924 1285 71.9 %

Line Branch Exec Source
1
/*
2
 * H.26L/H.264/AVC/JVT/14496-10/... decoder
3
 * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
4
 *
5
 * This file is part of FFmpeg.
6
 *
7
 * FFmpeg is free software; you can redistribute it and/or
8
 * modify it under the terms of the GNU Lesser General Public
9
 * License as published by the Free Software Foundation; either
10
 * version 2.1 of the License, or (at your option) any later version.
11
 *
12
 * FFmpeg is distributed in the hope that it will be useful,
13
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15
 * Lesser General Public License for more details.
16
 *
17
 * You should have received a copy of the GNU Lesser General Public
18
 * License along with FFmpeg; if not, write to the Free Software
19
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20
 */
21
22
/**
23
 * @file
24
 * H.264 / AVC / MPEG-4 part10 codec.
25
 * @author Michael Niedermayer <michaelni@gmx.at>
26
 */
27
28
#include "libavutil/avassert.h"
29
#include "libavutil/display.h"
30
#include "libavutil/imgutils.h"
31
#include "libavutil/stereo3d.h"
32
#include "libavutil/timer.h"
33
#include "internal.h"
34
#include "cabac.h"
35
#include "cabac_functions.h"
36
#include "error_resilience.h"
37
#include "avcodec.h"
38
#include "h264.h"
39
#include "h264dec.h"
40
#include "h264data.h"
41
#include "h264chroma.h"
42
#include "h264_mvpred.h"
43
#include "h264_ps.h"
44
#include "golomb.h"
45
#include "mathops.h"
46
#include "mpegutils.h"
47
#include "mpegvideo.h"
48
#include "rectangle.h"
49
#include "thread.h"
50
51
static const uint8_t field_scan[16+1] = {
52
    0 + 0 * 4, 0 + 1 * 4, 1 + 0 * 4, 0 + 2 * 4,
53
    0 + 3 * 4, 1 + 1 * 4, 1 + 2 * 4, 1 + 3 * 4,
54
    2 + 0 * 4, 2 + 1 * 4, 2 + 2 * 4, 2 + 3 * 4,
55
    3 + 0 * 4, 3 + 1 * 4, 3 + 2 * 4, 3 + 3 * 4,
56
};
57
58
static const uint8_t field_scan8x8[64+1] = {
59
    0 + 0 * 8, 0 + 1 * 8, 0 + 2 * 8, 1 + 0 * 8,
60
    1 + 1 * 8, 0 + 3 * 8, 0 + 4 * 8, 1 + 2 * 8,
61
    2 + 0 * 8, 1 + 3 * 8, 0 + 5 * 8, 0 + 6 * 8,
62
    0 + 7 * 8, 1 + 4 * 8, 2 + 1 * 8, 3 + 0 * 8,
63
    2 + 2 * 8, 1 + 5 * 8, 1 + 6 * 8, 1 + 7 * 8,
64
    2 + 3 * 8, 3 + 1 * 8, 4 + 0 * 8, 3 + 2 * 8,
65
    2 + 4 * 8, 2 + 5 * 8, 2 + 6 * 8, 2 + 7 * 8,
66
    3 + 3 * 8, 4 + 1 * 8, 5 + 0 * 8, 4 + 2 * 8,
67
    3 + 4 * 8, 3 + 5 * 8, 3 + 6 * 8, 3 + 7 * 8,
68
    4 + 3 * 8, 5 + 1 * 8, 6 + 0 * 8, 5 + 2 * 8,
69
    4 + 4 * 8, 4 + 5 * 8, 4 + 6 * 8, 4 + 7 * 8,
70
    5 + 3 * 8, 6 + 1 * 8, 6 + 2 * 8, 5 + 4 * 8,
71
    5 + 5 * 8, 5 + 6 * 8, 5 + 7 * 8, 6 + 3 * 8,
72
    7 + 0 * 8, 7 + 1 * 8, 6 + 4 * 8, 6 + 5 * 8,
73
    6 + 6 * 8, 6 + 7 * 8, 7 + 2 * 8, 7 + 3 * 8,
74
    7 + 4 * 8, 7 + 5 * 8, 7 + 6 * 8, 7 + 7 * 8,
75
};
76
77
static const uint8_t field_scan8x8_cavlc[64+1] = {
78
    0 + 0 * 8, 1 + 1 * 8, 2 + 0 * 8, 0 + 7 * 8,
79
    2 + 2 * 8, 2 + 3 * 8, 2 + 4 * 8, 3 + 3 * 8,
80
    3 + 4 * 8, 4 + 3 * 8, 4 + 4 * 8, 5 + 3 * 8,
81
    5 + 5 * 8, 7 + 0 * 8, 6 + 6 * 8, 7 + 4 * 8,
82
    0 + 1 * 8, 0 + 3 * 8, 1 + 3 * 8, 1 + 4 * 8,
83
    1 + 5 * 8, 3 + 1 * 8, 2 + 5 * 8, 4 + 1 * 8,
84
    3 + 5 * 8, 5 + 1 * 8, 4 + 5 * 8, 6 + 1 * 8,
85
    5 + 6 * 8, 7 + 1 * 8, 6 + 7 * 8, 7 + 5 * 8,
86
    0 + 2 * 8, 0 + 4 * 8, 0 + 5 * 8, 2 + 1 * 8,
87
    1 + 6 * 8, 4 + 0 * 8, 2 + 6 * 8, 5 + 0 * 8,
88
    3 + 6 * 8, 6 + 0 * 8, 4 + 6 * 8, 6 + 2 * 8,
89
    5 + 7 * 8, 6 + 4 * 8, 7 + 2 * 8, 7 + 6 * 8,
90
    1 + 0 * 8, 1 + 2 * 8, 0 + 6 * 8, 3 + 0 * 8,
91
    1 + 7 * 8, 3 + 2 * 8, 2 + 7 * 8, 4 + 2 * 8,
92
    3 + 7 * 8, 5 + 2 * 8, 4 + 7 * 8, 5 + 4 * 8,
93
    6 + 3 * 8, 6 + 5 * 8, 7 + 3 * 8, 7 + 7 * 8,
94
};
95
96
// zigzag_scan8x8_cavlc[i] = zigzag_scan8x8[(i/4) + 16*(i%4)]
97
static const uint8_t zigzag_scan8x8_cavlc[64+1] = {
98
    0 + 0 * 8, 1 + 1 * 8, 1 + 2 * 8, 2 + 2 * 8,
99
    4 + 1 * 8, 0 + 5 * 8, 3 + 3 * 8, 7 + 0 * 8,
100
    3 + 4 * 8, 1 + 7 * 8, 5 + 3 * 8, 6 + 3 * 8,
101
    2 + 7 * 8, 6 + 4 * 8, 5 + 6 * 8, 7 + 5 * 8,
102
    1 + 0 * 8, 2 + 0 * 8, 0 + 3 * 8, 3 + 1 * 8,
103
    3 + 2 * 8, 0 + 6 * 8, 4 + 2 * 8, 6 + 1 * 8,
104
    2 + 5 * 8, 2 + 6 * 8, 6 + 2 * 8, 5 + 4 * 8,
105
    3 + 7 * 8, 7 + 3 * 8, 4 + 7 * 8, 7 + 6 * 8,
106
    0 + 1 * 8, 3 + 0 * 8, 0 + 4 * 8, 4 + 0 * 8,
107
    2 + 3 * 8, 1 + 5 * 8, 5 + 1 * 8, 5 + 2 * 8,
108
    1 + 6 * 8, 3 + 5 * 8, 7 + 1 * 8, 4 + 5 * 8,
109
    4 + 6 * 8, 7 + 4 * 8, 5 + 7 * 8, 6 + 7 * 8,
110
    0 + 2 * 8, 2 + 1 * 8, 1 + 3 * 8, 5 + 0 * 8,
111
    1 + 4 * 8, 2 + 4 * 8, 6 + 0 * 8, 4 + 3 * 8,
112
    0 + 7 * 8, 4 + 4 * 8, 7 + 2 * 8, 3 + 6 * 8,
113
    5 + 5 * 8, 6 + 5 * 8, 6 + 6 * 8, 7 + 7 * 8,
114
};
115
116
26526
static void release_unused_pictures(H264Context *h, int remove_current)
117
{
118
    int i;
119
120
    /* release non reference frames */
121
981462
    for (i = 0; i < H264_MAX_PICTURE_COUNT; i++) {
122

954936
        if (h->DPB[i].f->buf[0] && !h->DPB[i].reference &&
123
2480
            (remove_current || &h->DPB[i] != h->cur_pic_ptr)) {
124
21298
            ff_h264_unref_picture(h, &h->DPB[i]);
125
        }
126
    }
127
26526
}
128
129
34013
static int alloc_scratch_buffers(H264SliceContext *sl, int linesize)
130
{
131
34013
    const H264Context *h = sl->h264;
132
34013
    int alloc_size = FFALIGN(FFABS(linesize) + 32, 32);
133
134
34013
    av_fast_malloc(&sl->bipred_scratchpad, &sl->bipred_scratchpad_allocated, 16 * 6 * alloc_size);
135
    // edge emu needs blocksize + filter length - 1
136
    // (= 21x21 for  H.264)
137
34013
    av_fast_malloc(&sl->edge_emu_buffer, &sl->edge_emu_buffer_allocated, alloc_size * 2 * 21);
138
139
34013
    av_fast_mallocz(&sl->top_borders[0], &sl->top_borders_allocated[0],
140
34013
                   h->mb_width * 16 * 3 * sizeof(uint8_t) * 2);
141
34013
    av_fast_mallocz(&sl->top_borders[1], &sl->top_borders_allocated[1],
142
34013
                   h->mb_width * 16 * 3 * sizeof(uint8_t) * 2);
143
144

34013
    if (!sl->bipred_scratchpad || !sl->edge_emu_buffer ||
145

34013
        !sl->top_borders[0]    || !sl->top_borders[1]) {
146
        av_freep(&sl->bipred_scratchpad);
147
        av_freep(&sl->edge_emu_buffer);
148
        av_freep(&sl->top_borders[0]);
149
        av_freep(&sl->top_borders[1]);
150
151
        sl->bipred_scratchpad_allocated = 0;
152
        sl->edge_emu_buffer_allocated   = 0;
153
        sl->top_borders_allocated[0]    = 0;
154
        sl->top_borders_allocated[1]    = 0;
155
        return AVERROR(ENOMEM);
156
    }
157
158
34013
    return 0;
159
}
160
161
531
static int init_table_pools(H264Context *h)
162
{
163
531
    const int big_mb_num    = h->mb_stride * (h->mb_height + 1) + 1;
164
531
    const int mb_array_size = h->mb_stride * h->mb_height;
165
531
    const int b4_stride     = h->mb_width * 4 + 1;
166
531
    const int b4_array_size = b4_stride * h->mb_height * 4;
167
168
531
    h->qscale_table_pool = av_buffer_pool_init(big_mb_num + h->mb_stride,
169
                                               av_buffer_allocz);
170
531
    h->mb_type_pool      = av_buffer_pool_init((big_mb_num + h->mb_stride) *
171
                                               sizeof(uint32_t), av_buffer_allocz);
172
531
    h->motion_val_pool   = av_buffer_pool_init(2 * (b4_array_size + 4) *
173
                                               sizeof(int16_t), av_buffer_allocz);
174
531
    h->ref_index_pool    = av_buffer_pool_init(4 * mb_array_size, av_buffer_allocz);
175
176

531
    if (!h->qscale_table_pool || !h->mb_type_pool || !h->motion_val_pool ||
177
531
        !h->ref_index_pool) {
178
        av_buffer_pool_uninit(&h->qscale_table_pool);
179
        av_buffer_pool_uninit(&h->mb_type_pool);
180
        av_buffer_pool_uninit(&h->motion_val_pool);
181
        av_buffer_pool_uninit(&h->ref_index_pool);
182
        return AVERROR(ENOMEM);
183
    }
184
185
531
    return 0;
186
}
187
188
23293
static int alloc_picture(H264Context *h, H264Picture *pic)
189
{
190
23293
    int i, ret = 0;
191
192
23293
    av_assert0(!pic->f->data[0]);
193
194
23293
    pic->tf.f = pic->f;
195
23293
    ret = ff_thread_get_buffer(h->avctx, &pic->tf, pic->reference ?
196
                                                   AV_GET_BUFFER_FLAG_REF : 0);
197
23293
    if (ret < 0)
198
        goto fail;
199
200
23293
    if (h->avctx->hwaccel) {
201
        const AVHWAccel *hwaccel = h->avctx->hwaccel;
202
        av_assert0(!pic->hwaccel_picture_private);
203
        if (hwaccel->frame_priv_data_size) {
204
            pic->hwaccel_priv_buf = av_buffer_allocz(hwaccel->frame_priv_data_size);
205
            if (!pic->hwaccel_priv_buf)
206
                return AVERROR(ENOMEM);
207
            pic->hwaccel_picture_private = pic->hwaccel_priv_buf->data;
208
        }
209
    }
210
    if (CONFIG_GRAY && !h->avctx->hwaccel && h->flags & AV_CODEC_FLAG_GRAY && pic->f->data[2]) {
211
        int h_chroma_shift, v_chroma_shift;
212
        av_pix_fmt_get_chroma_sub_sample(pic->f->format,
213
                                         &h_chroma_shift, &v_chroma_shift);
214
215
        for(i=0; i<AV_CEIL_RSHIFT(pic->f->height, v_chroma_shift); i++) {
216
            memset(pic->f->data[1] + pic->f->linesize[1]*i,
217
                   0x80, AV_CEIL_RSHIFT(pic->f->width, h_chroma_shift));
218
            memset(pic->f->data[2] + pic->f->linesize[2]*i,
219
                   0x80, AV_CEIL_RSHIFT(pic->f->width, h_chroma_shift));
220
        }
221
    }
222
223
23293
    if (!h->qscale_table_pool) {
224
531
        ret = init_table_pools(h);
225
531
        if (ret < 0)
226
            goto fail;
227
    }
228
229
23293
    pic->qscale_table_buf = av_buffer_pool_get(h->qscale_table_pool);
230
23293
    pic->mb_type_buf      = av_buffer_pool_get(h->mb_type_pool);
231

23293
    if (!pic->qscale_table_buf || !pic->mb_type_buf)
232
        goto fail;
233
234
23293
    pic->mb_type      = (uint32_t*)pic->mb_type_buf->data + 2 * h->mb_stride + 1;
235
23293
    pic->qscale_table = pic->qscale_table_buf->data + 2 * h->mb_stride + 1;
236
237
69879
    for (i = 0; i < 2; i++) {
238
46586
        pic->motion_val_buf[i] = av_buffer_pool_get(h->motion_val_pool);
239
46586
        pic->ref_index_buf[i]  = av_buffer_pool_get(h->ref_index_pool);
240

46586
        if (!pic->motion_val_buf[i] || !pic->ref_index_buf[i])
241
            goto fail;
242
243
46586
        pic->motion_val[i] = (int16_t (*)[2])pic->motion_val_buf[i]->data + 4;
244
46586
        pic->ref_index[i]  = pic->ref_index_buf[i]->data;
245
    }
246
247
23293
    return 0;
248
fail:
249
    ff_h264_unref_picture(h, pic);
250
    return (ret < 0) ? ret : AVERROR(ENOMEM);
251
}
252
253
23293
static int find_unused_picture(H264Context *h)
254
{
255
    int i;
256
257
81886
    for (i = 0; i < H264_MAX_PICTURE_COUNT; i++) {
258
81886
        if (!h->DPB[i].f->buf[0])
259
23293
            return i;
260
    }
261
    return AVERROR_INVALIDDATA;
262
}
263
264
265
#define IN_RANGE(a, b, size) (((void*)(a) >= (void*)(b)) && ((void*)(a) < (void*)((b) + (size))))
266
267
#define REBASE_PICTURE(pic, new_ctx, old_ctx)             \
268
    (((pic) && (pic) >= (old_ctx)->DPB &&                       \
269
      (pic) < (old_ctx)->DPB + H264_MAX_PICTURE_COUNT) ?          \
270
     &(new_ctx)->DPB[(pic) - (old_ctx)->DPB] : NULL)
271
272
129
static void copy_picture_range(H264Picture **to, H264Picture **from, int count,
273
                               H264Context *new_base,
274
                               H264Context *old_base)
275
{
276
    int i;
277
278
3655
    for (i = 0; i < count; i++) {
279
        av_assert1(!from[i] ||
280
                   IN_RANGE(from[i], old_base, 1) ||
281
                   IN_RANGE(from[i], old_base->DPB, H264_MAX_PICTURE_COUNT));
282

3526
        to[i] = REBASE_PICTURE(from[i], new_base, old_base);
283
    }
284
129
}
285
286
static int h264_slice_header_init(H264Context *h);
287
288
43
int ff_h264_update_thread_context(AVCodecContext *dst,
289
                                  const AVCodecContext *src)
290
{
291
43
    H264Context *h = dst->priv_data, *h1 = src->priv_data;
292
43
    int inited = h->context_initialized, err = 0;
293
43
    int need_reinit = 0;
294
    int i, ret;
295
296
43
    if (dst == src)
297
        return 0;
298
299
    // We can't fail if SPS isn't set at it breaks current skip_frame code
300
    //if (!h1->ps.sps)
301
    //    return AVERROR_INVALIDDATA;
302
303
43
    if (inited &&
304
35
        (h->width                 != h1->width                 ||
305
35
         h->height                != h1->height                ||
306
35
         h->mb_width              != h1->mb_width              ||
307
35
         h->mb_height             != h1->mb_height             ||
308
35
         !h->ps.sps                                            ||
309
35
         h->ps.sps->bit_depth_luma    != h1->ps.sps->bit_depth_luma    ||
310
35
         h->ps.sps->chroma_format_idc != h1->ps.sps->chroma_format_idc ||
311
35
         h->ps.sps->colorspace        != h1->ps.sps->colorspace)) {
312
        need_reinit = 1;
313
    }
314
315
    /* copy block_offset since frame_start may not be called */
316
43
    memcpy(h->block_offset, h1->block_offset, sizeof(h->block_offset));
317
318
    // SPS/PPS
319
1419
    for (i = 0; i < FF_ARRAY_ELEMS(h->ps.sps_list); i++) {
320
1376
        av_buffer_unref(&h->ps.sps_list[i]);
321
1376
        if (h1->ps.sps_list[i]) {
322
43
            h->ps.sps_list[i] = av_buffer_ref(h1->ps.sps_list[i]);
323
43
            if (!h->ps.sps_list[i])
324
                return AVERROR(ENOMEM);
325
        }
326
    }
327
11051
    for (i = 0; i < FF_ARRAY_ELEMS(h->ps.pps_list); i++) {
328
11008
        av_buffer_unref(&h->ps.pps_list[i]);
329
11008
        if (h1->ps.pps_list[i]) {
330
43
            h->ps.pps_list[i] = av_buffer_ref(h1->ps.pps_list[i]);
331
43
            if (!h->ps.pps_list[i])
332
                return AVERROR(ENOMEM);
333
        }
334
    }
335
336
43
    av_buffer_unref(&h->ps.pps_ref);
337
43
    av_buffer_unref(&h->ps.sps_ref);
338
43
    h->ps.pps = NULL;
339
43
    h->ps.sps = NULL;
340
43
    if (h1->ps.pps_ref) {
341
43
        h->ps.pps_ref = av_buffer_ref(h1->ps.pps_ref);
342
43
        if (!h->ps.pps_ref)
343
            return AVERROR(ENOMEM);
344
43
        h->ps.pps = (const PPS*)h->ps.pps_ref->data;
345
    }
346
43
    if (h1->ps.sps_ref) {
347
43
        h->ps.sps_ref = av_buffer_ref(h1->ps.sps_ref);
348
43
        if (!h->ps.sps_ref)
349
            return AVERROR(ENOMEM);
350
43
        h->ps.sps = (const SPS*)h->ps.sps_ref->data;
351
    }
352
353

43
    if (need_reinit || !inited) {
354
8
        h->width     = h1->width;
355
8
        h->height    = h1->height;
356
8
        h->mb_height = h1->mb_height;
357
8
        h->mb_width  = h1->mb_width;
358
8
        h->mb_num    = h1->mb_num;
359
8
        h->mb_stride = h1->mb_stride;
360
8
        h->b_stride  = h1->b_stride;
361
8
        h->x264_build = h1->x264_build;
362
363

8
        if (h->context_initialized || h1->context_initialized) {
364
8
            if ((err = h264_slice_header_init(h)) < 0) {
365
                av_log(h->avctx, AV_LOG_ERROR, "h264_slice_header_init() failed");
366
                return err;
367
            }
368
        }
369
370
        /* copy block_offset since frame_start may not be called */
371
8
        memcpy(h->block_offset, h1->block_offset, sizeof(h->block_offset));
372
    }
373
374
43
    h->avctx->coded_height  = h1->avctx->coded_height;
375
43
    h->avctx->coded_width   = h1->avctx->coded_width;
376
43
    h->avctx->width         = h1->avctx->width;
377
43
    h->avctx->height        = h1->avctx->height;
378
43
    h->width_from_caller    = h1->width_from_caller;
379
43
    h->height_from_caller   = h1->height_from_caller;
380
43
    h->coded_picture_number = h1->coded_picture_number;
381
43
    h->first_field          = h1->first_field;
382
43
    h->picture_structure    = h1->picture_structure;
383
43
    h->mb_aff_frame         = h1->mb_aff_frame;
384
43
    h->droppable            = h1->droppable;
385
386
1591
    for (i = 0; i < H264_MAX_PICTURE_COUNT; i++) {
387
1548
        ff_h264_unref_picture(h, &h->DPB[i]);
388

1730
        if (h1->DPB[i].f->buf[0] &&
389
182
            (ret = ff_h264_ref_picture(h, &h->DPB[i], &h1->DPB[i])) < 0)
390
            return ret;
391
    }
392
393

43
    h->cur_pic_ptr = REBASE_PICTURE(h1->cur_pic_ptr, h, h1);
394
43
    ff_h264_unref_picture(h, &h->cur_pic);
395
43
    if (h1->cur_pic.f->buf[0]) {
396
43
        ret = ff_h264_ref_picture(h, &h->cur_pic, &h1->cur_pic);
397
43
        if (ret < 0)
398
            return ret;
399
    }
400
401
43
    h->enable_er       = h1->enable_er;
402
43
    h->workaround_bugs = h1->workaround_bugs;
403
43
    h->droppable       = h1->droppable;
404
405
    // extradata/NAL handling
406
43
    h->is_avc = h1->is_avc;
407
43
    h->nal_length_size = h1->nal_length_size;
408
409
43
    memcpy(&h->poc,        &h1->poc,        sizeof(h->poc));
410
411
43
    memcpy(h->short_ref,   h1->short_ref,   sizeof(h->short_ref));
412
43
    memcpy(h->long_ref,    h1->long_ref,    sizeof(h->long_ref));
413
43
    memcpy(h->delayed_pic, h1->delayed_pic, sizeof(h->delayed_pic));
414
43
    memcpy(h->last_pocs,   h1->last_pocs,   sizeof(h->last_pocs));
415
416
43
    h->next_output_pic   = h1->next_output_pic;
417
43
    h->next_outputed_poc = h1->next_outputed_poc;
418
419
43
    memcpy(h->mmco, h1->mmco, sizeof(h->mmco));
420
43
    h->nb_mmco         = h1->nb_mmco;
421
43
    h->mmco_reset      = h1->mmco_reset;
422
43
    h->explicit_ref_marking = h1->explicit_ref_marking;
423
43
    h->long_ref_count  = h1->long_ref_count;
424
43
    h->short_ref_count = h1->short_ref_count;
425
426
43
    copy_picture_range(h->short_ref, h1->short_ref, 32, h, h1);
427
43
    copy_picture_range(h->long_ref, h1->long_ref, 32, h, h1);
428
43
    copy_picture_range(h->delayed_pic, h1->delayed_pic,
429
                       MAX_DELAYED_PIC_COUNT + 2, h, h1);
430
431
43
    h->frame_recovered       = h1->frame_recovered;
432
433
43
    av_buffer_unref(&h->sei.a53_caption.buf_ref);
434
43
    if (h1->sei.a53_caption.buf_ref) {
435
        h->sei.a53_caption.buf_ref = av_buffer_ref(h1->sei.a53_caption.buf_ref);
436
        if (!h->sei.a53_caption.buf_ref)
437
            return AVERROR(ENOMEM);
438
    }
439
440
43
    if (!h->cur_pic_ptr)
441
11
        return 0;
442
443
32
    if (!h->droppable) {
444
19
        err = ff_h264_execute_ref_pic_marking(h);
445
19
        h->poc.prev_poc_msb = h->poc.poc_msb;
446
19
        h->poc.prev_poc_lsb = h->poc.poc_lsb;
447
    }
448
32
    h->poc.prev_frame_num_offset = h->poc.frame_num_offset;
449
32
    h->poc.prev_frame_num        = h->poc.frame_num;
450
451
32
    h->recovery_frame        = h1->recovery_frame;
452
453
32
    return err;
454
}
455
456
23293
static int h264_frame_start(H264Context *h)
457
{
458
    H264Picture *pic;
459
    int i, ret;
460
23293
    const int pixel_shift = h->pixel_shift;
461
462
23293
    if (!ff_thread_can_start_frame(h->avctx)) {
463
        av_log(h->avctx, AV_LOG_ERROR, "Attempt to start a frame outside SETUP state\n");
464
        return -1;
465
    }
466
467
23293
    release_unused_pictures(h, 1);
468
23293
    h->cur_pic_ptr = NULL;
469
470
23293
    i = find_unused_picture(h);
471
23293
    if (i < 0) {
472
        av_log(h->avctx, AV_LOG_ERROR, "no frame buffer available\n");
473
        return i;
474
    }
475
23293
    pic = &h->DPB[i];
476
477
23293
    pic->reference              = h->droppable ? 0 : h->picture_structure;
478
23293
    pic->f->coded_picture_number = h->coded_picture_number++;
479
23293
    pic->field_picture          = h->picture_structure != PICT_FRAME;
480
23293
    pic->frame_num               = h->poc.frame_num;
481
    /*
482
     * Zero key_frame here; IDR markings per slice in frame or fields are ORed
483
     * in later.
484
     * See decode_nal_units().
485
     */
486
23293
    pic->f->key_frame = 0;
487
23293
    pic->mmco_reset  = 0;
488
23293
    pic->recovered   = 0;
489
23293
    pic->invalid_gap = 0;
490
23293
    pic->sei_recovery_frame_cnt = h->sei.recovery_point.recovery_frame_cnt;
491
492
23293
    pic->f->pict_type = h->slice_ctx[0].slice_type;
493
494
23293
    pic->f->crop_left   = h->crop_left;
495
23293
    pic->f->crop_right  = h->crop_right;
496
23293
    pic->f->crop_top    = h->crop_top;
497
23293
    pic->f->crop_bottom = h->crop_bottom;
498
499
23293
    if ((ret = alloc_picture(h, pic)) < 0)
500
        return ret;
501
502
23293
    h->cur_pic_ptr = pic;
503
23293
    ff_h264_unref_picture(h, &h->cur_pic);
504
    if (CONFIG_ERROR_RESILIENCE) {
505
23293
        ff_h264_set_erpic(&h->slice_ctx[0].er.cur_pic, NULL);
506
    }
507
508
23293
    if ((ret = ff_h264_ref_picture(h, &h->cur_pic, h->cur_pic_ptr)) < 0)
509
        return ret;
510
511
46886
    for (i = 0; i < h->nb_slice_ctx; i++) {
512
23593
        h->slice_ctx[i].linesize   = h->cur_pic_ptr->f->linesize[0];
513
23593
        h->slice_ctx[i].uvlinesize = h->cur_pic_ptr->f->linesize[1];
514
    }
515
516
23293
    if (CONFIG_ERROR_RESILIENCE && h->enable_er) {
517
22993
        ff_er_frame_start(&h->slice_ctx[0].er);
518
22993
        ff_h264_set_erpic(&h->slice_ctx[0].er.last_pic, NULL);
519
22993
        ff_h264_set_erpic(&h->slice_ctx[0].er.next_pic, NULL);
520
    }
521
522
395981
    for (i = 0; i < 16; i++) {
523
372688
        h->block_offset[i]           = (4 * ((scan8[i] - scan8[0]) & 7) << pixel_shift) + 4 * pic->f->linesize[0] * ((scan8[i] - scan8[0]) >> 3);
524
372688
        h->block_offset[48 + i]      = (4 * ((scan8[i] - scan8[0]) & 7) << pixel_shift) + 8 * pic->f->linesize[0] * ((scan8[i] - scan8[0]) >> 3);
525
    }
526
395981
    for (i = 0; i < 16; i++) {
527
372688
        h->block_offset[16 + i]      =
528
372688
        h->block_offset[32 + i]      = (4 * ((scan8[i] - scan8[0]) & 7) << pixel_shift) + 4 * pic->f->linesize[1] * ((scan8[i] - scan8[0]) >> 3);
529
372688
        h->block_offset[48 + 16 + i] =
530
372688
        h->block_offset[48 + 32 + i] = (4 * ((scan8[i] - scan8[0]) & 7) << pixel_shift) + 8 * pic->f->linesize[1] * ((scan8[i] - scan8[0]) >> 3);
531
    }
532
533
    /* We mark the current picture as non-reference after allocating it, so
534
     * that if we break out due to an error it can be released automatically
535
     * in the next ff_mpv_frame_start().
536
     */
537
23293
    h->cur_pic_ptr->reference = 0;
538
539
23293
    h->cur_pic_ptr->field_poc[0] = h->cur_pic_ptr->field_poc[1] = INT_MAX;
540
541
23293
    h->next_output_pic = NULL;
542
543
23293
    h->postpone_filter = 0;
544
545

23293
    h->mb_aff_frame = h->ps.sps->mb_aff && (h->picture_structure == PICT_FRAME);
546
547
23293
    if (h->sei.unregistered.x264_build >= 0)
548
1796
        h->x264_build = h->sei.unregistered.x264_build;
549
550
    assert(h->cur_pic_ptr->long_ref == 0);
551
552
23293
    return 0;
553
}
554
555
10754602
static av_always_inline void backup_mb_border(const H264Context *h, H264SliceContext *sl,
556
                                              uint8_t *src_y,
557
                                              uint8_t *src_cb, uint8_t *src_cr,
558
                                              int linesize, int uvlinesize,
559
                                              int simple)
560
{
561
    uint8_t *top_border;
562
10754602
    int top_idx = 1;
563
10754602
    const int pixel_shift = h->pixel_shift;
564
10754602
    int chroma444 = CHROMA444(h);
565
10754602
    int chroma422 = CHROMA422(h);
566
567
10754602
    src_y  -= linesize;
568
10754602
    src_cb -= uvlinesize;
569
10754602
    src_cr -= uvlinesize;
570
571

10754602
    if (!simple && FRAME_MBAFF(h)) {
572
1814136
        if (sl->mb_y & 1) {
573
907068
            if (!MB_MBAFF(sl)) {
574
665811
                top_border = sl->top_borders[0][sl->mb_x];
575
665811
                AV_COPY128(top_border, src_y + 15 * linesize);
576
665811
                if (pixel_shift)
577
213139
                    AV_COPY128(top_border + 16, src_y + 15 * linesize + 16);
578
                if (simple || !CONFIG_GRAY || !(h->flags & AV_CODEC_FLAG_GRAY)) {
579
665811
                    if (chroma444) {
580
                        if (pixel_shift) {
581
                            AV_COPY128(top_border + 32, src_cb + 15 * uvlinesize);
582
                            AV_COPY128(top_border + 48, src_cb + 15 * uvlinesize + 16);
583
                            AV_COPY128(top_border + 64, src_cr + 15 * uvlinesize);
584
                            AV_COPY128(top_border + 80, src_cr + 15 * uvlinesize + 16);
585
                        } else {
586
                            AV_COPY128(top_border + 16, src_cb + 15 * uvlinesize);
587
                            AV_COPY128(top_border + 32, src_cr + 15 * uvlinesize);
588
                        }
589
665811
                    } else if (chroma422) {
590
106510
                        if (pixel_shift) {
591
106510
                            AV_COPY128(top_border + 32, src_cb + 15 * uvlinesize);
592
106510
                            AV_COPY128(top_border + 48, src_cr + 15 * uvlinesize);
593
                        } else {
594
                            AV_COPY64(top_border + 16, src_cb + 15 * uvlinesize);
595
                            AV_COPY64(top_border + 24, src_cr + 15 * uvlinesize);
596
                        }
597
                    } else {
598
559301
                        if (pixel_shift) {
599
106629
                            AV_COPY128(top_border + 32, src_cb + 7 * uvlinesize);
600
106629
                            AV_COPY128(top_border + 48, src_cr + 7 * uvlinesize);
601
                        } else {
602
452672
                            AV_COPY64(top_border + 16, src_cb + 7 * uvlinesize);
603
452672
                            AV_COPY64(top_border + 24, src_cr + 7 * uvlinesize);
604
                        }
605
                    }
606
                }
607
            }
608
907068
        } else if (MB_MBAFF(sl)) {
609
241257
            top_idx = 0;
610
        } else
611
665811
            return;
612
    }
613
614
10088791
    top_border = sl->top_borders[top_idx][sl->mb_x];
615
    /* There are two lines saved, the line above the top macroblock
616
     * of a pair, and the line above the bottom macroblock. */
617
10088791
    AV_COPY128(top_border, src_y + 16 * linesize);
618
10088791
    if (pixel_shift)
619
1300901
        AV_COPY128(top_border + 16, src_y + 16 * linesize + 16);
620
621
    if (simple || !CONFIG_GRAY || !(h->flags & AV_CODEC_FLAG_GRAY)) {
622
10088791
        if (chroma444) {
623
39528
            if (pixel_shift) {
624
19800
                AV_COPY128(top_border + 32, src_cb + 16 * linesize);
625
19800
                AV_COPY128(top_border + 48, src_cb + 16 * linesize + 16);
626
19800
                AV_COPY128(top_border + 64, src_cr + 16 * linesize);
627
19800
                AV_COPY128(top_border + 80, src_cr + 16 * linesize + 16);
628
            } else {
629
19728
                AV_COPY128(top_border + 16, src_cb + 16 * linesize);
630
19728
                AV_COPY128(top_border + 32, src_cr + 16 * linesize);
631
            }
632
10049263
        } else if (chroma422) {
633
588635
            if (pixel_shift) {
634
584675
                AV_COPY128(top_border + 32, src_cb + 16 * uvlinesize);
635
584675
                AV_COPY128(top_border + 48, src_cr + 16 * uvlinesize);
636
            } else {
637
3960
                AV_COPY64(top_border + 16, src_cb + 16 * uvlinesize);
638
3960
                AV_COPY64(top_border + 24, src_cr + 16 * uvlinesize);
639
            }
640
        } else {
641
9460628
            if (pixel_shift) {
642
696426
                AV_COPY128(top_border + 32, src_cb + 8 * uvlinesize);
643
696426
                AV_COPY128(top_border + 48, src_cr + 8 * uvlinesize);
644
            } else {
645
8764202
                AV_COPY64(top_border + 16, src_cb + 8 * uvlinesize);
646
8764202
                AV_COPY64(top_border + 24, src_cr + 8 * uvlinesize);
647
            }
648
        }
649
    }
650
}
651
652
/**
653
 * Initialize implicit_weight table.
654
 * @param field  0/1 initialize the weight for interlaced MBAFF
655
 *                -1 initializes the rest
656
 */
657
3298
static void implicit_weight_table(const H264Context *h, H264SliceContext *sl, int field)
658
{
659
    int ref0, ref1, i, cur_poc, ref_start, ref_count0, ref_count1;
660
661
9894
    for (i = 0; i < 2; i++) {
662
6596
        sl->pwt.luma_weight_flag[i]   = 0;
663
6596
        sl->pwt.chroma_weight_flag[i] = 0;
664
    }
665
666
3298
    if (field < 0) {
667
1588
        if (h->picture_structure == PICT_FRAME) {
668
1588
            cur_poc = h->cur_pic_ptr->poc;
669
        } else {
670
            cur_poc = h->cur_pic_ptr->field_poc[h->picture_structure - 1];
671
        }
672

1588
        if (sl->ref_count[0] == 1 && sl->ref_count[1] == 1 && !FRAME_MBAFF(h) &&
673
96
            sl->ref_list[0][0].poc + (int64_t)sl->ref_list[1][0].poc == 2LL * cur_poc) {
674
34
            sl->pwt.use_weight        = 0;
675
34
            sl->pwt.use_weight_chroma = 0;
676
34
            return;
677
        }
678
1554
        ref_start  = 0;
679
1554
        ref_count0 = sl->ref_count[0];
680
1554
        ref_count1 = sl->ref_count[1];
681
    } else {
682
1710
        cur_poc    = h->cur_pic_ptr->field_poc[field];
683
1710
        ref_start  = 16;
684
1710
        ref_count0 = 16 + 2 * sl->ref_count[0];
685
1710
        ref_count1 = 16 + 2 * sl->ref_count[1];
686
    }
687
688
3264
    sl->pwt.use_weight               = 2;
689
3264
    sl->pwt.use_weight_chroma        = 2;
690
3264
    sl->pwt.luma_log2_weight_denom   = 5;
691
3264
    sl->pwt.chroma_log2_weight_denom = 5;
692
693
14877
    for (ref0 = ref_start; ref0 < ref_count0; ref0++) {
694
11613
        int64_t poc0 = sl->ref_list[0][ref0].poc;
695
33315
        for (ref1 = ref_start; ref1 < ref_count1; ref1++) {
696
21702
            int w = 32;
697

21702
            if (!sl->ref_list[0][ref0].parent->long_ref && !sl->ref_list[1][ref1].parent->long_ref) {
698
21702
                int poc1 = sl->ref_list[1][ref1].poc;
699
21702
                int td   = av_clip_int8(poc1 - poc0);
700
21702
                if (td) {
701
21636
                    int tb = av_clip_int8(cur_poc - poc0);
702
21636
                    int tx = (16384 + (FFABS(td) >> 1)) / td;
703
21636
                    int dist_scale_factor = (tb * tx + 32) >> 8;
704

21636
                    if (dist_scale_factor >= -64 && dist_scale_factor <= 128)
705
21633
                        w = 64 - dist_scale_factor;
706
                }
707
            }
708
21702
            if (field < 0) {
709
5822
                sl->pwt.implicit_weight[ref0][ref1][0] =
710
5822
                sl->pwt.implicit_weight[ref0][ref1][1] = w;
711
            } else {
712
15880
                sl->pwt.implicit_weight[ref0][ref1][field] = w;
713
            }
714
        }
715
    }
716
}
717
718
/**
719
 * initialize scan tables
720
 */
721
531
static void init_scan_tables(H264Context *h)
722
{
723
    int i;
724
9027
    for (i = 0; i < 16; i++) {
725
#define TRANSPOSE(x) ((x) >> 2) | (((x) << 2) & 0xF)
726
8496
        h->zigzag_scan[i] = TRANSPOSE(ff_zigzag_scan[i]);
727
8496
        h->field_scan[i]  = TRANSPOSE(field_scan[i]);
728
#undef TRANSPOSE
729
    }
730
34515
    for (i = 0; i < 64; i++) {
731
#define TRANSPOSE(x) ((x) >> 3) | (((x) & 7) << 3)
732
33984
        h->zigzag_scan8x8[i]       = TRANSPOSE(ff_zigzag_direct[i]);
733
33984
        h->zigzag_scan8x8_cavlc[i] = TRANSPOSE(zigzag_scan8x8_cavlc[i]);
734
33984
        h->field_scan8x8[i]        = TRANSPOSE(field_scan8x8[i]);
735
33984
        h->field_scan8x8_cavlc[i]  = TRANSPOSE(field_scan8x8_cavlc[i]);
736
#undef TRANSPOSE
737
    }
738
531
    if (h->ps.sps->transform_bypass) { // FIXME same ugly
739
12
        memcpy(h->zigzag_scan_q0          , ff_zigzag_scan          , sizeof(h->zigzag_scan_q0         ));
740
12
        memcpy(h->zigzag_scan8x8_q0       , ff_zigzag_direct        , sizeof(h->zigzag_scan8x8_q0      ));
741
12
        memcpy(h->zigzag_scan8x8_cavlc_q0 , zigzag_scan8x8_cavlc    , sizeof(h->zigzag_scan8x8_cavlc_q0));
742
12
        memcpy(h->field_scan_q0           , field_scan              , sizeof(h->field_scan_q0          ));
743
12
        memcpy(h->field_scan8x8_q0        , field_scan8x8           , sizeof(h->field_scan8x8_q0       ));
744
12
        memcpy(h->field_scan8x8_cavlc_q0  , field_scan8x8_cavlc     , sizeof(h->field_scan8x8_cavlc_q0 ));
745
    } else {
746
519
        memcpy(h->zigzag_scan_q0          , h->zigzag_scan          , sizeof(h->zigzag_scan_q0         ));
747
519
        memcpy(h->zigzag_scan8x8_q0       , h->zigzag_scan8x8       , sizeof(h->zigzag_scan8x8_q0      ));
748
519
        memcpy(h->zigzag_scan8x8_cavlc_q0 , h->zigzag_scan8x8_cavlc , sizeof(h->zigzag_scan8x8_cavlc_q0));
749
519
        memcpy(h->field_scan_q0           , h->field_scan           , sizeof(h->field_scan_q0          ));
750
519
        memcpy(h->field_scan8x8_q0        , h->field_scan8x8        , sizeof(h->field_scan8x8_q0       ));
751
519
        memcpy(h->field_scan8x8_cavlc_q0  , h->field_scan8x8_cavlc  , sizeof(h->field_scan8x8_cavlc_q0 ));
752
    }
753
531
}
754
755
26140
static enum AVPixelFormat get_pixel_format(H264Context *h, int force_callback)
756
{
757
#define HWACCEL_MAX (CONFIG_H264_DXVA2_HWACCEL + \
758
                     (CONFIG_H264_D3D11VA_HWACCEL * 2) + \
759
                     CONFIG_H264_NVDEC_HWACCEL + \
760
                     CONFIG_H264_VAAPI_HWACCEL + \
761
                     CONFIG_H264_VIDEOTOOLBOX_HWACCEL + \
762
                     CONFIG_H264_VDPAU_HWACCEL)
763
26140
    enum AVPixelFormat pix_fmts[HWACCEL_MAX + 2], *fmt = pix_fmts;
764
26140
    const enum AVPixelFormat *choices = pix_fmts;
765
    int i;
766
767

26140
    switch (h->ps.sps->bit_depth_luma) {
768
155
    case 9:
769
155
        if (CHROMA444(h)) {
770
            if (h->avctx->colorspace == AVCOL_SPC_RGB) {
771
                *fmt++ = AV_PIX_FMT_GBRP9;
772
            } else
773
                *fmt++ = AV_PIX_FMT_YUV444P9;
774
155
        } else if (CHROMA422(h))
775
52
            *fmt++ = AV_PIX_FMT_YUV422P9;
776
        else
777
103
            *fmt++ = AV_PIX_FMT_YUV420P9;
778
155
        break;
779
355
    case 10:
780
355
        if (CHROMA444(h)) {
781
51
            if (h->avctx->colorspace == AVCOL_SPC_RGB) {
782
                *fmt++ = AV_PIX_FMT_GBRP10;
783
            } else
784
51
                *fmt++ = AV_PIX_FMT_YUV444P10;
785
304
        } else if (CHROMA422(h))
786
164
            *fmt++ = AV_PIX_FMT_YUV422P10;
787
        else
788
140
            *fmt++ = AV_PIX_FMT_YUV420P10;
789
355
        break;
790
    case 12:
791
        if (CHROMA444(h)) {
792
            if (h->avctx->colorspace == AVCOL_SPC_RGB) {
793
                *fmt++ = AV_PIX_FMT_GBRP12;
794
            } else
795
                *fmt++ = AV_PIX_FMT_YUV444P12;
796
        } else if (CHROMA422(h))
797
            *fmt++ = AV_PIX_FMT_YUV422P12;
798
        else
799
            *fmt++ = AV_PIX_FMT_YUV420P12;
800
        break;
801
    case 14:
802
        if (CHROMA444(h)) {
803
            if (h->avctx->colorspace == AVCOL_SPC_RGB) {
804
                *fmt++ = AV_PIX_FMT_GBRP14;
805
            } else
806
                *fmt++ = AV_PIX_FMT_YUV444P14;
807
        } else if (CHROMA422(h))
808
            *fmt++ = AV_PIX_FMT_YUV422P14;
809
        else
810
            *fmt++ = AV_PIX_FMT_YUV420P14;
811
        break;
812
25630
    case 8:
813
#if CONFIG_H264_VDPAU_HWACCEL
814
25630
        *fmt++ = AV_PIX_FMT_VDPAU;
815
#endif
816
#if CONFIG_H264_NVDEC_HWACCEL
817
        *fmt++ = AV_PIX_FMT_CUDA;
818
#endif
819
25630
        if (CHROMA444(h)) {
820
400
            if (h->avctx->colorspace == AVCOL_SPC_RGB)
821
                *fmt++ = AV_PIX_FMT_GBRP;
822
400
            else if (h->avctx->color_range == AVCOL_RANGE_JPEG)
823
                *fmt++ = AV_PIX_FMT_YUVJ444P;
824
            else
825
400
                *fmt++ = AV_PIX_FMT_YUV444P;
826
25230
        } else if (CHROMA422(h)) {
827
22
            if (h->avctx->color_range == AVCOL_RANGE_JPEG)
828
                *fmt++ = AV_PIX_FMT_YUVJ422P;
829
            else
830
22
                *fmt++ = AV_PIX_FMT_YUV422P;
831
        } else {
832
#if CONFIG_H264_DXVA2_HWACCEL
833
            *fmt++ = AV_PIX_FMT_DXVA2_VLD;
834
#endif
835
#if CONFIG_H264_D3D11VA_HWACCEL
836
            *fmt++ = AV_PIX_FMT_D3D11VA_VLD;
837
            *fmt++ = AV_PIX_FMT_D3D11;
838
#endif
839
#if CONFIG_H264_VAAPI_HWACCEL
840
25208
            *fmt++ = AV_PIX_FMT_VAAPI;
841
#endif
842
#if CONFIG_H264_VIDEOTOOLBOX_HWACCEL
843
            *fmt++ = AV_PIX_FMT_VIDEOTOOLBOX;
844
#endif
845
25208
            if (h->avctx->codec->pix_fmts)
846
                choices = h->avctx->codec->pix_fmts;
847
25208
            else if (h->avctx->color_range == AVCOL_RANGE_JPEG)
848
3
                *fmt++ = AV_PIX_FMT_YUVJ420P;
849
            else
850
25205
                *fmt++ = AV_PIX_FMT_YUV420P;
851
        }
852
25630
        break;
853
    default:
854
        av_log(h->avctx, AV_LOG_ERROR,
855
               "Unsupported bit depth %d\n", h->ps.sps->bit_depth_luma);
856
        return AVERROR_INVALIDDATA;
857
    }
858
859
26140
    *fmt = AV_PIX_FMT_NONE;
860
861
77504
    for (i=0; choices[i] != AV_PIX_FMT_NONE; i++)
862

76978
        if (choices[i] == h->avctx->pix_fmt && !force_callback)
863
25614
            return choices[i];
864
526
    return ff_thread_get_format(h->avctx, choices);
865
}
866
867
/* export coded and cropped frame dimensions to AVCodecContext */
868
25900
static int init_dimensions(H264Context *h)
869
{
870
25900
    const SPS *sps = (const SPS*)h->ps.sps;
871
25900
    int cr = sps->crop_right;
872
25900
    int cl = sps->crop_left;
873
25900
    int ct = sps->crop_top;
874
25900
    int cb = sps->crop_bottom;
875
25900
    int width  = h->width  - (cr + cl);
876
25900
    int height = h->height - (ct + cb);
877
25900
    av_assert0(sps->crop_right + sps->crop_left < (unsigned)h->width);
878
25900
    av_assert0(sps->crop_top + sps->crop_bottom < (unsigned)h->height);
879
880
    /* handle container cropping */
881

25900
    if (h->width_from_caller > 0 && h->height_from_caller > 0     &&
882

23711
        !sps->crop_top && !sps->crop_left                         &&
883
23710
        FFALIGN(h->width_from_caller,  16) == FFALIGN(width,  16) &&
884
23705
        FFALIGN(h->height_from_caller, 16) == FFALIGN(height, 16) &&
885
23705
        h->width_from_caller  <= width &&
886
23705
        h->height_from_caller <= height) {
887
23704
        width  = h->width_from_caller;
888
23704
        height = h->height_from_caller;
889
23704
        cl = 0;
890
23704
        ct = 0;
891
23704
        cr = h->width - width;
892
23704
        cb = h->height - height;
893
    } else {
894
2196
        h->width_from_caller  = 0;
895
2196
        h->height_from_caller = 0;
896
    }
897
898
25900
    h->avctx->coded_width  = h->width;
899
25900
    h->avctx->coded_height = h->height;
900
25900
    h->avctx->width        = width;
901
25900
    h->avctx->height       = height;
902
25900
    h->crop_right          = cr;
903
25900
    h->crop_left           = cl;
904
25900
    h->crop_top            = ct;
905
25900
    h->crop_bottom         = cb;
906
907
25900
    return 0;
908
}
909
910
531
static int h264_slice_header_init(H264Context *h)
911
{
912
531
    const SPS *sps = h->ps.sps;
913
    int i, ret;
914
915
531
    ff_set_sar(h->avctx, sps->sar);
916
531
    av_pix_fmt_get_chroma_sub_sample(h->avctx->pix_fmt,
917
                                     &h->chroma_x_shift, &h->chroma_y_shift);
918
919
531
    if (sps->timing_info_present_flag) {
920
129
        int64_t den = sps->time_scale;
921
129
        if (h->x264_build < 44U)
922
            den *= 2;
923
129
        av_reduce(&h->avctx->framerate.den, &h->avctx->framerate.num,
924
129
                  sps->num_units_in_tick * h->avctx->ticks_per_frame, den, 1 << 30);
925
    }
926
927
531
    ff_h264_free_tables(h);
928
929
531
    h->first_field           = 0;
930
531
    h->prev_interlaced_frame = 1;
931
932
531
    init_scan_tables(h);
933
531
    ret = ff_h264_alloc_tables(h);
934
531
    if (ret < 0) {
935
        av_log(h->avctx, AV_LOG_ERROR, "Could not allocate memory\n");
936
        goto fail;
937
    }
938
939

531
    if (sps->bit_depth_luma < 8 || sps->bit_depth_luma > 14 ||
940

531
        sps->bit_depth_luma == 11 || sps->bit_depth_luma == 13
941
    ) {
942
        av_log(h->avctx, AV_LOG_ERROR, "Unsupported bit depth %d\n",
943
               sps->bit_depth_luma);
944
        ret = AVERROR_INVALIDDATA;
945
        goto fail;
946
    }
947
948
531
    h->cur_bit_depth_luma         =
949
531
    h->avctx->bits_per_raw_sample = sps->bit_depth_luma;
950
531
    h->cur_chroma_format_idc      = sps->chroma_format_idc;
951
531
    h->pixel_shift                = sps->bit_depth_luma > 8;
952
531
    h->chroma_format_idc          = sps->chroma_format_idc;
953
531
    h->bit_depth_luma             = sps->bit_depth_luma;
954
955
531
    ff_h264dsp_init(&h->h264dsp, sps->bit_depth_luma,
956
                    sps->chroma_format_idc);
957
531
    ff_h264chroma_init(&h->h264chroma, sps->bit_depth_chroma);
958
531
    ff_h264qpel_init(&h->h264qpel, sps->bit_depth_luma);
959
531
    ff_h264_pred_init(&h->hpc, h->avctx->codec_id, sps->bit_depth_luma,
960
                      sps->chroma_format_idc);
961
531
    ff_videodsp_init(&h->vdsp, sps->bit_depth_luma);
962
963
531
    if (!HAVE_THREADS || !(h->avctx->active_thread_type & FF_THREAD_SLICE)) {
964
530
        ret = ff_h264_slice_context_init(h, &h->slice_ctx[0]);
965
530
        if (ret < 0) {
966
            av_log(h->avctx, AV_LOG_ERROR, "context_init() failed.\n");
967
            goto fail;
968
        }
969
    } else {
970
3
        for (i = 0; i < h->nb_slice_ctx; i++) {
971
2
            H264SliceContext *sl = &h->slice_ctx[i];
972
973
2
            sl->h264               = h;
974
2
            sl->intra4x4_pred_mode = h->intra4x4_pred_mode + i * 8 * 2 * h->mb_stride;
975
2
            sl->mvd_table[0]       = h->mvd_table[0]       + i * 8 * 2 * h->mb_stride;
976
2
            sl->mvd_table[1]       = h->mvd_table[1]       + i * 8 * 2 * h->mb_stride;
977
978
2
            if ((ret = ff_h264_slice_context_init(h, sl)) < 0) {
979
                av_log(h->avctx, AV_LOG_ERROR, "context_init() failed.\n");
980
                goto fail;
981
            }
982
        }
983
    }
984
985
531
    h->context_initialized = 1;
986
987
531
    return 0;
988
fail:
989
    ff_h264_free_tables(h);
990
    h->context_initialized = 0;
991
    return ret;
992
}
993
994
51234
static enum AVPixelFormat non_j_pixfmt(enum AVPixelFormat a)
995
{
996

51234
    switch (a) {
997
2
    case AV_PIX_FMT_YUVJ420P: return AV_PIX_FMT_YUV420P;
998
    case AV_PIX_FMT_YUVJ422P: return AV_PIX_FMT_YUV422P;
999
    case AV_PIX_FMT_YUVJ444P: return AV_PIX_FMT_YUV444P;
1000
51232
    default:
1001
51232
        return a;
1002
    }
1003
}
1004
1005
25900
static int h264_init_ps(H264Context *h, const H264SliceContext *sl, int first_slice)
1006
{
1007
    const SPS *sps;
1008
25900
    int needs_reinit = 0, must_reinit, ret;
1009
1010
25900
    if (first_slice) {
1011
25707
        av_buffer_unref(&h->ps.pps_ref);
1012
25707
        h->ps.pps = NULL;
1013
25707
        h->ps.pps_ref = av_buffer_ref(h->ps.pps_list[sl->pps_id]);
1014
25707
        if (!h->ps.pps_ref)
1015
            return AVERROR(ENOMEM);
1016
25707
        h->ps.pps = (const PPS*)h->ps.pps_ref->data;
1017
    }
1018
1019
25900
    if (h->ps.sps != (const SPS*)h->ps.sps_list[h->ps.pps->sps_id]->data) {
1020
528
        av_buffer_unref(&h->ps.sps_ref);
1021
528
        h->ps.sps = NULL;
1022
528
        h->ps.sps_ref = av_buffer_ref(h->ps.sps_list[h->ps.pps->sps_id]);
1023
528
        if (!h->ps.sps_ref)
1024
            return AVERROR(ENOMEM);
1025
528
        h->ps.sps = (const SPS*)h->ps.sps_ref->data;
1026
1027
528
        if (h->mb_width  != h->ps.sps->mb_width ||
1028
7
            h->mb_height != h->ps.sps->mb_height ||
1029
7
            h->cur_bit_depth_luma    != h->ps.sps->bit_depth_luma ||
1030
6
            h->cur_chroma_format_idc != h->ps.sps->chroma_format_idc
1031
        )
1032
523
            needs_reinit = 1;
1033
1034
528
        if (h->bit_depth_luma    != h->ps.sps->bit_depth_luma ||
1035
9
            h->chroma_format_idc != h->ps.sps->chroma_format_idc)
1036
520
            needs_reinit         = 1;
1037
    }
1038
25900
    sps = h->ps.sps;
1039
1040
51283
    must_reinit = (h->context_initialized &&
1041
25383
                    (   16*sps->mb_width != h->avctx->coded_width
1042
25379
                     || 16*sps->mb_height != h->avctx->coded_height
1043
25379
                     || h->cur_bit_depth_luma    != sps->bit_depth_luma
1044
25378
                     || h->cur_chroma_format_idc != sps->chroma_format_idc
1045
25377
                     || h->mb_width  != sps->mb_width
1046
25377
                     || h->mb_height != sps->mb_height
1047
                    ));
1048
25900
    if (h->avctx->pix_fmt == AV_PIX_FMT_NONE
1049
25617
        || (non_j_pixfmt(h->avctx->pix_fmt) != non_j_pixfmt(get_pixel_format(h, 0))))
1050
286
        must_reinit = 1;
1051
1052

25900
    if (first_slice && av_cmp_q(sps->sar, h->avctx->sample_aspect_ratio))
1053
48
        must_reinit = 1;
1054
1055
25900
    if (!h->setup_finished) {
1056
25900
        h->avctx->profile = ff_h264_get_profile(sps);
1057
25900
        h->avctx->level   = sps->level_idc;
1058
25900
        h->avctx->refs    = sps->ref_frame_count;
1059
1060
25900
        h->mb_width  = sps->mb_width;
1061
25900
        h->mb_height = sps->mb_height;
1062
25900
        h->mb_num    = h->mb_width * h->mb_height;
1063
25900
        h->mb_stride = h->mb_width + 1;
1064
1065
25900
        h->b_stride = h->mb_width * 4;
1066
1067
25900
        h->chroma_y_shift = sps->chroma_format_idc <= 1; // 400 uses yuv420p
1068
1069
25900
        h->width  = 16 * h->mb_width;
1070
25900
        h->height = 16 * h->mb_height;
1071
1072
25900
        ret = init_dimensions(h);
1073
25900
        if (ret < 0)
1074
            return ret;
1075
1076
25900
        if (sps->video_signal_type_present_flag) {
1077
1338
            h->avctx->color_range = sps->full_range > 0 ? AVCOL_RANGE_JPEG
1078
669
                                                        : AVCOL_RANGE_MPEG;
1079
669
            if (sps->colour_description_present_flag) {
1080
571
                if (h->avctx->colorspace != sps->colorspace)
1081
14
                    needs_reinit = 1;
1082
571
                h->avctx->color_primaries = sps->color_primaries;
1083
571
                h->avctx->color_trc       = sps->color_trc;
1084
571
                h->avctx->colorspace      = sps->colorspace;
1085
            }
1086
        }
1087
1088

25900
        if (h->sei.alternative_transfer.present &&
1089
            av_color_transfer_name(h->sei.alternative_transfer.preferred_transfer_characteristics) &&
1090
            h->sei.alternative_transfer.preferred_transfer_characteristics != AVCOL_TRC_UNSPECIFIED) {
1091
            h->avctx->color_trc = h->sei.alternative_transfer.preferred_transfer_characteristics;
1092
        }
1093
    }
1094
1095

25900
    if (!h->context_initialized || must_reinit || needs_reinit) {
1096
523
        int flush_changes = h->context_initialized;
1097
523
        h->context_initialized = 0;
1098
523
        if (sl != h->slice_ctx) {
1099
            av_log(h->avctx, AV_LOG_ERROR,
1100
                   "changing width %d -> %d / height %d -> %d on "
1101
                   "slice %d\n",
1102
                   h->width, h->avctx->coded_width,
1103
                   h->height, h->avctx->coded_height,
1104
                   h->current_slice + 1);
1105
            return AVERROR_INVALIDDATA;
1106
        }
1107
1108
        av_assert1(first_slice);
1109
1110
523
        if (flush_changes)
1111
6
            ff_h264_flush_change(h);
1112
1113
523
        if ((ret = get_pixel_format(h, 1)) < 0)
1114
            return ret;
1115
523
        h->avctx->pix_fmt = ret;
1116
1117
523
        av_log(h->avctx, AV_LOG_VERBOSE, "Reinit context to %dx%d, "
1118
523
               "pix_fmt: %s\n", h->width, h->height, av_get_pix_fmt_name(h->avctx->pix_fmt));
1119
1120
523
        if ((ret = h264_slice_header_init(h)) < 0) {
1121
            av_log(h->avctx, AV_LOG_ERROR,
1122
                   "h264_slice_header_init() failed\n");
1123
            return ret;
1124
        }
1125
    }
1126
1127
25900
    return 0;
1128
}
1129
1130
22663
static int h264_export_frame_props(H264Context *h)
1131
{
1132
22663
    const SPS *sps = h->ps.sps;
1133
22663
    H264Picture *cur = h->cur_pic_ptr;
1134
1135
22663
    cur->f->interlaced_frame = 0;
1136
22663
    cur->f->repeat_pict      = 0;
1137
1138
    /* Signal interlacing information externally. */
1139
    /* Prioritize picture timing SEI information over used
1140
     * decoding process if it exists. */
1141
1142

23912
    if (sps->pic_struct_present_flag && h->sei.picture_timing.present) {
1143
1249
        H264SEIPictureTiming *pt = &h->sei.picture_timing;
1144

1249
        switch (pt->pic_struct) {
1145
131
        case H264_SEI_PIC_STRUCT_FRAME:
1146
131
            break;
1147
411
        case H264_SEI_PIC_STRUCT_TOP_FIELD:
1148
        case H264_SEI_PIC_STRUCT_BOTTOM_FIELD:
1149
411
            cur->f->interlaced_frame = 1;
1150
411
            break;
1151
703
        case H264_SEI_PIC_STRUCT_TOP_BOTTOM:
1152
        case H264_SEI_PIC_STRUCT_BOTTOM_TOP:
1153

703
            if (FIELD_OR_MBAFF_PICTURE(h))
1154
699
                cur->f->interlaced_frame = 1;
1155
            else
1156
                // try to flag soft telecine progressive
1157
4
                cur->f->interlaced_frame = h->prev_interlaced_frame;
1158
703
            break;
1159
4
        case H264_SEI_PIC_STRUCT_TOP_BOTTOM_TOP:
1160
        case H264_SEI_PIC_STRUCT_BOTTOM_TOP_BOTTOM:
1161
            /* Signal the possibility of telecined film externally
1162
             * (pic_struct 5,6). From these hints, let the applications
1163
             * decide if they apply deinterlacing. */
1164
4
            cur->f->repeat_pict = 1;
1165
4
            break;
1166
        case H264_SEI_PIC_STRUCT_FRAME_DOUBLING:
1167
            cur->f->repeat_pict = 2;
1168
            break;
1169
        case H264_SEI_PIC_STRUCT_FRAME_TRIPLING:
1170
            cur->f->repeat_pict = 4;
1171
            break;
1172
        }
1173
1174
1249
        if ((pt->ct_type & 3) &&
1175
651
            pt->pic_struct <= H264_SEI_PIC_STRUCT_BOTTOM_TOP)
1176
650
            cur->f->interlaced_frame = (pt->ct_type & (1 << 1)) != 0;
1177
    } else {
1178
        /* Derive interlacing flag from used decoding process. */
1179

21414
        cur->f->interlaced_frame = FIELD_OR_MBAFF_PICTURE(h);
1180
    }
1181
22663
    h->prev_interlaced_frame = cur->f->interlaced_frame;
1182
1183
22663
    if (cur->field_poc[0] != cur->field_poc[1]) {
1184
        /* Derive top_field_first from field pocs. */
1185
3169
        cur->f->top_field_first = cur->field_poc[0] < cur->field_poc[1];
1186
    } else {
1187

19494
        if (sps->pic_struct_present_flag && h->sei.picture_timing.present) {
1188
            /* Use picture timing SEI information. Even if it is a
1189
             * information of a past frame, better than nothing. */
1190
138
            if (h->sei.picture_timing.pic_struct == H264_SEI_PIC_STRUCT_TOP_BOTTOM ||
1191
137
                h->sei.picture_timing.pic_struct == H264_SEI_PIC_STRUCT_TOP_BOTTOM_TOP)
1192
3
                cur->f->top_field_first = 1;
1193
            else
1194
135
                cur->f->top_field_first = 0;
1195
19356
        } else if (cur->f->interlaced_frame) {
1196
            /* Default to top field first when pic_struct_present_flag
1197
             * is not set but interlaced frame detected */
1198
2554
            cur->f->top_field_first = 1;
1199
        } else {
1200
            /* Most likely progressive */
1201
16802
            cur->f->top_field_first = 0;
1202
        }
1203
    }
1204
1205
22663
    if (h->sei.frame_packing.present &&
1206
        h->sei.frame_packing.arrangement_type <= 6 &&
1207
        h->sei.frame_packing.content_interpretation_type > 0 &&
1208
        h->sei.frame_packing.content_interpretation_type < 3) {
1209
        H264SEIFramePacking *fp = &h->sei.frame_packing;
1210
        AVStereo3D *stereo = av_stereo3d_create_side_data(cur->f);
1211
        if (stereo) {
1212
        switch (fp->arrangement_type) {
1213
        case H264_SEI_FPA_TYPE_CHECKERBOARD:
1214
            stereo->type = AV_STEREO3D_CHECKERBOARD;
1215
            break;
1216
        case H264_SEI_FPA_TYPE_INTERLEAVE_COLUMN:
1217
            stereo->type = AV_STEREO3D_COLUMNS;
1218
            break;
1219
        case H264_SEI_FPA_TYPE_INTERLEAVE_ROW:
1220
            stereo->type = AV_STEREO3D_LINES;
1221
            break;
1222
        case H264_SEI_FPA_TYPE_SIDE_BY_SIDE:
1223
            if (fp->quincunx_sampling_flag)
1224
                stereo->type = AV_STEREO3D_SIDEBYSIDE_QUINCUNX;
1225
            else
1226
                stereo->type = AV_STEREO3D_SIDEBYSIDE;
1227
            break;
1228
        case H264_SEI_FPA_TYPE_TOP_BOTTOM:
1229
            stereo->type = AV_STEREO3D_TOPBOTTOM;
1230
            break;
1231
        case H264_SEI_FPA_TYPE_INTERLEAVE_TEMPORAL:
1232
            stereo->type = AV_STEREO3D_FRAMESEQUENCE;
1233
            break;
1234
        case H264_SEI_FPA_TYPE_2D:
1235
            stereo->type = AV_STEREO3D_2D;
1236
            break;
1237
        }
1238
1239
        if (fp->content_interpretation_type == 2)
1240
            stereo->flags = AV_STEREO3D_FLAG_INVERT;
1241
1242
        if (fp->arrangement_type == H264_SEI_FPA_TYPE_INTERLEAVE_TEMPORAL) {
1243
            if (fp->current_frame_is_frame0_flag)
1244
                stereo->view = AV_STEREO3D_VIEW_LEFT;
1245
            else
1246
                stereo->view = AV_STEREO3D_VIEW_RIGHT;
1247
        }
1248
        }
1249
    }
1250
1251
22663
    if (h->sei.display_orientation.present &&
1252
1
        (h->sei.display_orientation.anticlockwise_rotation ||
1253
1
         h->sei.display_orientation.hflip ||
1254
1
         h->sei.display_orientation.vflip)) {
1255
        H264SEIDisplayOrientation *o = &h->sei.display_orientation;
1256
        double angle = o->anticlockwise_rotation * 360 / (double) (1 << 16);
1257
        AVFrameSideData *rotation = av_frame_new_side_data(cur->f,
1258
                                                           AV_FRAME_DATA_DISPLAYMATRIX,
1259
                                                           sizeof(int32_t) * 9);
1260
        if (rotation) {
1261
            av_display_rotation_set((int32_t *)rotation->data, angle);
1262
            av_display_matrix_flip((int32_t *)rotation->data,
1263
                                   o->hflip, o->vflip);
1264
        }
1265
    }
1266
1267
22663
    if (h->sei.afd.present) {
1268
140
        AVFrameSideData *sd = av_frame_new_side_data(cur->f, AV_FRAME_DATA_AFD,
1269
                                                     sizeof(uint8_t));
1270
1271
140
        if (sd) {
1272
140
            *sd->data = h->sei.afd.active_format_description;
1273
140
            h->sei.afd.present = 0;
1274
        }
1275
    }
1276
1277
22663
    if (h->sei.a53_caption.buf_ref) {
1278
1
        H264SEIA53Caption *a53 = &h->sei.a53_caption;
1279
1280
1
        AVFrameSideData *sd = av_frame_new_side_data_from_buf(cur->f, AV_FRAME_DATA_A53_CC, a53->buf_ref);
1281
1
        if (!sd)
1282
            av_buffer_unref(&a53->buf_ref);
1283
1
        a53->buf_ref = NULL;
1284
1285
1
        h->avctx->properties |= FF_CODEC_PROPERTY_CLOSED_CAPTIONS;
1286
    }
1287
1288
22663
    if (h->sei.picture_timing.timecode_cnt > 0) {
1289
651
        uint32_t tc = 0;
1290
        uint32_t *tc_sd;
1291
1292
651
        AVFrameSideData *tcside = av_frame_new_side_data(cur->f,
1293
                                                         AV_FRAME_DATA_S12M_TIMECODE,
1294
                                                         sizeof(uint32_t)*4);
1295
651
        if (!tcside)
1296
            return AVERROR(ENOMEM);
1297
1298
651
        tc_sd = (uint32_t*)tcside->data;
1299
651
        tc_sd[0] = h->sei.picture_timing.timecode_cnt;
1300
1301
1603
        for (int i = 0; i < tc_sd[0]; i++) {
1302
            uint32_t frames;
1303
1304
            /* For SMPTE 12-M timecodes, frame count is a special case if > 30 FPS.
1305
               See SMPTE ST 12-1:2014 Sec 12.1 for more info. */
1306
952
            if (av_cmp_q(h->avctx->framerate, (AVRational) {30, 1}) == 1) {
1307
                frames = h->sei.picture_timing.timecode[i].frame / 2;
1308
                if (h->sei.picture_timing.timecode[i].frame % 2 == 1) {
1309
                    if (av_cmp_q(h->avctx->framerate, (AVRational) {50, 1}) == 0)
1310
                        tc |= (1 << 7);
1311
                    else
1312
                        tc |= (1 << 23);
1313
                }
1314
            } else {
1315
952
                frames = h->sei.picture_timing.timecode[i].frame;
1316
            }
1317
1318
952
            tc |= h->sei.picture_timing.timecode[i].dropframe << 30;
1319
952
            tc |= (frames / 10) << 28;
1320
952
            tc |= (frames % 10) << 24;
1321
952
            tc |= (h->sei.picture_timing.timecode[i].seconds / 10) << 20;
1322
952
            tc |= (h->sei.picture_timing.timecode[i].seconds % 10) << 16;
1323
952
            tc |= (h->sei.picture_timing.timecode[i].minutes / 10) << 12;
1324
952
            tc |= (h->sei.picture_timing.timecode[i].minutes % 10) << 8;
1325
952
            tc |= (h->sei.picture_timing.timecode[i].hours / 10) << 4;
1326
952
            tc |= (h->sei.picture_timing.timecode[i].hours % 10);
1327
1328
952
            tc_sd[i + 1] = tc;
1329
        }
1330
651
        h->sei.picture_timing.timecode_cnt = 0;
1331
    }
1332
1333
22663
    return 0;
1334
}
1335
1336
22663
static int h264_select_output_frame(H264Context *h)
1337
{
1338
22663
    const SPS *sps = h->ps.sps;
1339
22663
    H264Picture *out = h->cur_pic_ptr;
1340
22663
    H264Picture *cur = h->cur_pic_ptr;
1341
    int i, pics, out_of_order, out_idx;
1342
1343
22663
    cur->mmco_reset = h->mmco_reset;
1344
22663
    h->mmco_reset = 0;
1345
1346
22663
    if (sps->bitstream_restriction_flag ||
1347
19192
        h->avctx->strict_std_compliance >= FF_COMPLIANCE_STRICT) {
1348
3471
        h->avctx->has_b_frames = FFMAX(h->avctx->has_b_frames, sps->num_reorder_frames);
1349
    }
1350
1351
370984
    for (i = 0; 1; i++) {
1352

370984
        if(i == MAX_DELAYED_PIC_COUNT || cur->poc < h->last_pocs[i]){
1353
22663
            if(i)
1354
22663
                h->last_pocs[i-1] = cur->poc;
1355
22663
            break;
1356
348321
        } else if(i) {
1357
325658
            h->last_pocs[i-1]= h->last_pocs[i];
1358
        }
1359
    }
1360
22663
    out_of_order = MAX_DELAYED_PIC_COUNT - i;
1361
22663
    if(   cur->f->pict_type == AV_PICTURE_TYPE_B
1362

15221
       || (h->last_pocs[MAX_DELAYED_PIC_COUNT-2] > INT_MIN && h->last_pocs[MAX_DELAYED_PIC_COUNT-1] - (int64_t)h->last_pocs[MAX_DELAYED_PIC_COUNT-2] > 2))
1363
12017
        out_of_order = FFMAX(out_of_order, 1);
1364
22663
    if (out_of_order == MAX_DELAYED_PIC_COUNT) {
1365
        av_log(h->avctx, AV_LOG_VERBOSE, "Invalid POC %d<%d\n", cur->poc, h->last_pocs[0]);
1366
        for (i = 1; i < MAX_DELAYED_PIC_COUNT; i++)
1367
            h->last_pocs[i] = INT_MIN;
1368
        h->last_pocs[0] = cur->poc;
1369
        cur->mmco_reset = 1;
1370

22663
    } else if(h->avctx->has_b_frames < out_of_order && !sps->bitstream_restriction_flag){
1371
131
        int loglevel = h->avctx->frame_number > 1 ? AV_LOG_WARNING : AV_LOG_VERBOSE;
1372
131
        av_log(h->avctx, loglevel, "Increasing reorder buffer to %d\n", out_of_order);
1373
131
        h->avctx->has_b_frames = out_of_order;
1374
    }
1375
1376
22663
    pics = 0;
1377
51553
    while (h->delayed_pic[pics])
1378
28890
        pics++;
1379
1380
22663
    av_assert0(pics <= MAX_DELAYED_PIC_COUNT);
1381
1382
22663
    h->delayed_pic[pics++] = cur;
1383
22663
    if (cur->reference == 0)
1384
21253
        cur->reference = DELAYED_PIC_REF;
1385
1386
22663
    out     = h->delayed_pic[0];
1387
22663
    out_idx = 0;
1388
48648
    for (i = 1; h->delayed_pic[i] &&
1389
26435
                !h->delayed_pic[i]->f->key_frame &&
1390
26072
                !h->delayed_pic[i]->mmco_reset;
1391
25985
         i++)
1392
25985
        if (h->delayed_pic[i]->poc < out->poc) {
1393
9615
            out     = h->delayed_pic[i];
1394
9615
            out_idx = i;
1395
        }
1396
22663
    if (h->avctx->has_b_frames == 0 &&
1397

9463
        (h->delayed_pic[0]->f->key_frame || h->delayed_pic[0]->mmco_reset))
1398
777
        h->next_outputed_poc = INT_MIN;
1399
22663
    out_of_order = out->poc < h->next_outputed_poc;
1400
1401

22663
    if (out_of_order || pics > h->avctx->has_b_frames) {
1402
22195
        out->reference &= ~DELAYED_PIC_REF;
1403
58575
        for (i = out_idx; h->delayed_pic[i]; i++)
1404
36380
            h->delayed_pic[i] = h->delayed_pic[i + 1];
1405
    }
1406

22663
    if (!out_of_order && pics > h->avctx->has_b_frames) {
1407
21951
        h->next_output_pic = out;
1408


21951
        if (out_idx == 0 && h->delayed_pic[0] && (h->delayed_pic[0]->f->key_frame || h->delayed_pic[0]->mmco_reset)) {
1409
87
            h->next_outputed_poc = INT_MIN;
1410
        } else
1411
21864
            h->next_outputed_poc = out->poc;
1412
1413
21951
        if (out->recovered) {
1414
            // We have reached an recovery point and all frames after it in
1415
            // display order are "recovered".
1416
21882
            h->frame_recovered |= FRAME_RECOVERED_SEI;
1417
        }
1418
21951
        out->recovered |= !!(h->frame_recovered & FRAME_RECOVERED_SEI);
1419
1420
21951
        if (!out->recovered) {
1421
64
            if (!(h->avctx->flags & AV_CODEC_FLAG_OUTPUT_CORRUPT) &&
1422
64
                !(h->avctx->flags2 & AV_CODEC_FLAG2_SHOW_ALL)) {
1423
64
                h->next_output_pic = NULL;
1424
            } else {
1425
                out->f->flags |= AV_FRAME_FLAG_CORRUPT;
1426
            }
1427
        }
1428
    } else {
1429
712
        av_log(h->avctx, AV_LOG_DEBUG, "no picture %s\n", out_of_order ? "ooo" : "");
1430
    }
1431
1432
22663
    return 0;
1433
}
1434
1435
/* This function is called right after decoding the slice header for a first
1436
 * slice in a field (or a frame). It decides whether we are decoding a new frame
1437
 * or a second field in a pair and does the necessary setup.
1438
 */
1439
25900
static int h264_field_start(H264Context *h, const H264SliceContext *sl,
1440
                            const H2645NAL *nal, int first_slice)
1441
{
1442
    int i;
1443
    const SPS *sps;
1444
1445
    int last_pic_structure, last_pic_droppable, ret;
1446
1447
25900
    ret = h264_init_ps(h, sl, first_slice);
1448
25900
    if (ret < 0)
1449
        return ret;
1450
1451
25900
    sps = h->ps.sps;
1452
1453

25900
    if (sps && sps->bitstream_restriction_flag &&
1454
3967
        h->avctx->has_b_frames < sps->num_reorder_frames) {
1455
20
        h->avctx->has_b_frames = sps->num_reorder_frames;
1456
    }
1457
1458
25900
    last_pic_droppable   = h->droppable;
1459
25900
    last_pic_structure   = h->picture_structure;
1460
25900
    h->droppable         = (nal->ref_idc == 0);
1461
25900
    h->picture_structure = sl->picture_structure;
1462
1463
25900
    h->poc.frame_num        = sl->frame_num;
1464
25900
    h->poc.poc_lsb          = sl->poc_lsb;
1465
25900
    h->poc.delta_poc_bottom = sl->delta_poc_bottom;
1466
25900
    h->poc.delta_poc[0]     = sl->delta_poc[0];
1467
25900
    h->poc.delta_poc[1]     = sl->delta_poc[1];
1468
1469
    /* Shorten frame num gaps so we don't have to allocate reference
1470
     * frames just to throw them away */
1471
25900
    if (h->poc.frame_num != h->poc.prev_frame_num) {
1472
14578
        int unwrap_prev_frame_num = h->poc.prev_frame_num;
1473
14578
        int max_frame_num         = 1 << sps->log2_max_frame_num;
1474
1475
14578
        if (unwrap_prev_frame_num > h->poc.frame_num)
1476
140
            unwrap_prev_frame_num -= max_frame_num;
1477
1478
14578
        if ((h->poc.frame_num - unwrap_prev_frame_num) > sps->ref_frame_count) {
1479
53
            unwrap_prev_frame_num = (h->poc.frame_num - sps->ref_frame_count) - 1;
1480
53
            if (unwrap_prev_frame_num < 0)
1481
2
                unwrap_prev_frame_num += max_frame_num;
1482
1483
53
            h->poc.prev_frame_num = unwrap_prev_frame_num;
1484
        }
1485
    }
1486
1487
    /* See if we have a decoded first field looking for a pair...
1488
     * Here, we're using that to see if we should mark previously
1489
     * decode frames as "finished".
1490
     * We have to do that before the "dummy" in-between frame allocation,
1491
     * since that can modify h->cur_pic_ptr. */
1492
25900
    if (h->first_field) {
1493
3233
        int last_field = last_pic_structure == PICT_BOTTOM_FIELD;
1494
3233
        av_assert0(h->cur_pic_ptr);
1495
3233
        av_assert0(h->cur_pic_ptr->f->buf[0]);
1496
        assert(h->cur_pic_ptr->reference != DELAYED_PIC_REF);
1497
1498
        /* Mark old field/frame as completed */
1499
3233
        if (h->cur_pic_ptr->tf.owner[last_field] == h->avctx) {
1500
3233
            ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX, last_field);
1501
        }
1502
1503
        /* figure out if we have a complementary field pair */
1504

3233
        if (!FIELD_PICTURE(h) || h->picture_structure == last_pic_structure) {
1505
            /* Previous field is unmatched. Don't display it, but let it
1506
             * remain for reference if marked as such. */
1507
            if (last_pic_structure != PICT_FRAME) {
1508
                ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX,
1509
                                          last_pic_structure == PICT_TOP_FIELD);
1510
            }
1511
        } else {
1512
3233
            if (h->cur_pic_ptr->frame_num != h->poc.frame_num) {
1513
                /* This and previous field were reference, but had
1514
                 * different frame_nums. Consider this field first in
1515
                 * pair. Throw away previous field except for reference
1516
                 * purposes. */
1517
                if (last_pic_structure != PICT_FRAME) {
1518
                    ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX,
1519
                                              last_pic_structure == PICT_TOP_FIELD);
1520
                }
1521
            } else {
1522
                /* Second field in complementary pair */
1523

3233
                if (!((last_pic_structure   == PICT_TOP_FIELD &&
1524
3225
                       h->picture_structure == PICT_BOTTOM_FIELD) ||
1525
8
                      (last_pic_structure   == PICT_BOTTOM_FIELD &&
1526
8
                       h->picture_structure == PICT_TOP_FIELD))) {
1527
                    av_log(h->avctx, AV_LOG_ERROR,
1528
                           "Invalid field mode combination %d/%d\n",
1529
                           last_pic_structure, h->picture_structure);
1530
                    h->picture_structure = last_pic_structure;
1531
                    h->droppable         = last_pic_droppable;
1532
                    return AVERROR_INVALIDDATA;
1533
3233
                } else if (last_pic_droppable != h->droppable) {
1534
                    avpriv_request_sample(h->avctx,
1535
                                          "Found reference and non-reference fields in the same frame, which");
1536
                    h->picture_structure = last_pic_structure;
1537
                    h->droppable         = last_pic_droppable;
1538
                    return AVERROR_PATCHWELCOME;
1539
                }
1540
            }
1541
        }
1542
    }
1543
1544

26526
    while (h->poc.frame_num != h->poc.prev_frame_num && !h->first_field &&
1545
15204
           h->poc.frame_num != (h->poc.prev_frame_num + 1) % (1 << sps->log2_max_frame_num)) {
1546
626
        H264Picture *prev = h->short_ref_count ? h->short_ref[0] : NULL;
1547
626
        av_log(h->avctx, AV_LOG_DEBUG, "Frame num gap %d %d\n",
1548
               h->poc.frame_num, h->poc.prev_frame_num);
1549
626
        if (!sps->gaps_in_frame_num_allowed_flag)
1550
833
            for(i=0; i<FF_ARRAY_ELEMS(h->last_pocs); i++)
1551
784
                h->last_pocs[i] = INT_MIN;
1552
626
        ret = h264_frame_start(h);
1553
626
        if (ret < 0) {
1554
            h->first_field = 0;
1555
            return ret;
1556
        }
1557
1558
626
        h->poc.prev_frame_num++;
1559
626
        h->poc.prev_frame_num        %= 1 << sps->log2_max_frame_num;
1560
626
        h->cur_pic_ptr->frame_num = h->poc.prev_frame_num;
1561
626
        h->cur_pic_ptr->invalid_gap = !sps->gaps_in_frame_num_allowed_flag;
1562
626
        ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX, 0);
1563
626
        ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX, 1);
1564
1565
626
        h->explicit_ref_marking = 0;
1566
626
        ret = ff_h264_execute_ref_pic_marking(h);
1567

626
        if (ret < 0 && (h->avctx->err_recognition & AV_EF_EXPLODE))
1568
            return ret;
1569
        /* Error concealment: If a ref is missing, copy the previous ref
1570
         * in its place.
1571
         * FIXME: Avoiding a memcpy would be nice, but ref handling makes
1572
         * many assumptions about there being no actual duplicates.
1573
         * FIXME: This does not copy padding for out-of-frame motion
1574
         * vectors.  Given we are concealing a lost frame, this probably
1575
         * is not noticeable by comparison, but it should be fixed. */
1576
626
        if (h->short_ref_count) {
1577
626
            int c[4] = {
1578
626
                1<<(h->ps.sps->bit_depth_luma-1),
1579
626
                1<<(h->ps.sps->bit_depth_chroma-1),
1580
626
                1<<(h->ps.sps->bit_depth_chroma-1),
1581
                -1
1582
            };
1583
1584
626
            if (prev &&
1585
612
                h->short_ref[0]->f->width == prev->f->width &&
1586
612
                h->short_ref[0]->f->height == prev->f->height &&
1587
612
                h->short_ref[0]->f->format == prev->f->format) {
1588
612
                ff_thread_await_progress(&prev->tf, INT_MAX, 0);
1589
612
                if (prev->field_picture)
1590
14
                    ff_thread_await_progress(&prev->tf, INT_MAX, 1);
1591
612
                av_image_copy(h->short_ref[0]->f->data,
1592
612
                              h->short_ref[0]->f->linesize,
1593
612
                              (const uint8_t **)prev->f->data,
1594
612
                              prev->f->linesize,
1595
612
                              prev->f->format,
1596
612
                              prev->f->width,
1597
612
                              prev->f->height);
1598
612
                h->short_ref[0]->poc = prev->poc + 2;
1599

14
            } else if (!h->frame_recovered && !h->avctx->hwaccel)
1600
11
                ff_color_frame(h->short_ref[0]->f, c);
1601
626
            h->short_ref[0]->frame_num = h->poc.prev_frame_num;
1602
        }
1603
    }
1604
1605
    /* See if we have a decoded first field looking for a pair...
1606
     * We're using that to see whether to continue decoding in that
1607
     * frame, or to allocate a new one. */
1608
25900
    if (h->first_field) {
1609
3233
        av_assert0(h->cur_pic_ptr);
1610
3233
        av_assert0(h->cur_pic_ptr->f->buf[0]);
1611
        assert(h->cur_pic_ptr->reference != DELAYED_PIC_REF);
1612
1613
        /* figure out if we have a complementary field pair */
1614

3233
        if (!FIELD_PICTURE(h) || h->picture_structure == last_pic_structure) {
1615
            /* Previous field is unmatched. Don't display it, but let it
1616
             * remain for reference if marked as such. */
1617
            h->missing_fields ++;
1618
            h->cur_pic_ptr = NULL;
1619
            h->first_field = FIELD_PICTURE(h);
1620
        } else {
1621
3233
            h->missing_fields = 0;
1622
3233
            if (h->cur_pic_ptr->frame_num != h->poc.frame_num) {
1623
                ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX,
1624
                                          h->picture_structure==PICT_BOTTOM_FIELD);
1625
                /* This and the previous field had different frame_nums.
1626
                 * Consider this field first in pair. Throw away previous
1627
                 * one except for reference purposes. */
1628
                h->first_field = 1;
1629
                h->cur_pic_ptr = NULL;
1630
3233
            } else if (h->cur_pic_ptr->reference & DELAYED_PIC_REF) {
1631
                /* This frame was already output, we cannot draw into it
1632
                 * anymore.
1633
                 */
1634
                h->first_field = 1;
1635
                h->cur_pic_ptr = NULL;
1636
            } else {
1637
                /* Second field in complementary pair */
1638
3233
                h->first_field = 0;
1639
            }
1640
        }
1641
    } else {
1642
        /* Frame or first field in a potentially complementary pair */
1643
22667
        h->first_field = FIELD_PICTURE(h);
1644
    }
1645
1646

25900
    if (!FIELD_PICTURE(h) || h->first_field) {
1647
22667
        if (h264_frame_start(h) < 0) {
1648
            h->first_field = 0;
1649
            return AVERROR_INVALIDDATA;
1650
        }
1651
    } else {
1652
3233
        int field = h->picture_structure == PICT_BOTTOM_FIELD;
1653
3233
        release_unused_pictures(h, 0);
1654
3233
        h->cur_pic_ptr->tf.owner[field] = h->avctx;
1655
    }
1656
    /* Some macroblocks can be accessed before they're available in case
1657
    * of lost slices, MBAFF or threading. */
1658
25900
    if (FIELD_PICTURE(h)) {
1659
157329
        for(i = (h->picture_structure == PICT_BOTTOM_FIELD); i<h->mb_height; i++)
1660
150859
            memset(h->slice_table + i*h->mb_stride, -1, (h->mb_stride - (i+1==h->mb_height)) * sizeof(*h->slice_table));
1661
    } else {
1662
19430
        memset(h->slice_table, -1,
1663
19430
            (h->mb_height * h->mb_stride - 1) * sizeof(*h->slice_table));
1664
    }
1665
1666
25900
    ret = ff_h264_init_poc(h->cur_pic_ptr->field_poc, &h->cur_pic_ptr->poc,
1667
                     h->ps.sps, &h->poc, h->picture_structure, nal->ref_idc);
1668
25900
    if (ret < 0)
1669
        return ret;
1670
1671
25900
    memcpy(h->mmco, sl->mmco, sl->nb_mmco * sizeof(*h->mmco));
1672
25900
    h->nb_mmco = sl->nb_mmco;
1673
25900
    h->explicit_ref_marking = sl->explicit_ref_marking;
1674
1675
25900
    h->picture_idr = nal->type == H264_NAL_IDR_SLICE;
1676
1677
25900
    if (h->sei.recovery_point.recovery_frame_cnt >= 0) {
1678
45
        const int sei_recovery_frame_cnt = h->sei.recovery_point.recovery_frame_cnt;
1679
1680

45
        if (h->poc.frame_num != sei_recovery_frame_cnt || sl->slice_type_nos != AV_PICTURE_TYPE_I)
1681
32
            h->valid_recovery_point = 1;
1682
1683
45
        if (   h->recovery_frame < 0
1684
1
            || av_mod_uintp2(h->recovery_frame - h->poc.frame_num, h->ps.sps->log2_max_frame_num) > sei_recovery_frame_cnt) {
1685
44
            h->recovery_frame = av_mod_uintp2(h->poc.frame_num + sei_recovery_frame_cnt, h->ps.sps->log2_max_frame_num);
1686
1687
44
            if (!h->valid_recovery_point)
1688
6
                h->recovery_frame = h->poc.frame_num;
1689
        }
1690
    }
1691
1692
25900
    h->cur_pic_ptr->f->key_frame |= (nal->type == H264_NAL_IDR_SLICE);
1693
1694
25900
    if (nal->type == H264_NAL_IDR_SLICE ||
1695

24890
        (h->recovery_frame == h->poc.frame_num && nal->ref_idc)) {
1696
1043
        h->recovery_frame         = -1;
1697
1043
        h->cur_pic_ptr->recovered = 1;
1698
    }
1699
    // If we have an IDR, all frames after it in decoded order are
1700
    // "recovered".
1701
25900
    if (nal->type == H264_NAL_IDR_SLICE)
1702
1010
        h->frame_recovered |= FRAME_RECOVERED_IDR;
1703
#if 1
1704
25900
    h->cur_pic_ptr->recovered |= h->frame_recovered;
1705
#else
1706
    h->cur_pic_ptr->recovered |= !!(h->frame_recovered & FRAME_RECOVERED_IDR);
1707
#endif
1708
1709
    /* Set the frame properties/side data. Only done for the second field in
1710
     * field coded frames, since some SEI information is present for each field
1711
     * and is merged by the SEI parsing code. */
1712

25900
    if (!FIELD_PICTURE(h) || !h->first_field || h->missing_fields > 1) {
1713
22663
        ret = h264_export_frame_props(h);
1714
22663
        if (ret < 0)
1715
            return ret;
1716
1717
22663
        ret = h264_select_output_frame(h);
1718
22663
        if (ret < 0)
1719
            return ret;
1720
    }
1721
1722
25900
    return 0;
1723
}
1724
1725
34117
static int h264_slice_header_parse(const H264Context *h, H264SliceContext *sl,
1726
                                   const H2645NAL *nal)
1727
{
1728
    const SPS *sps;
1729
    const PPS *pps;
1730
    int ret;
1731
    unsigned int slice_type, tmp, i;
1732
    int field_pic_flag, bottom_field_flag;
1733

34117
    int first_slice = sl == h->slice_ctx && !h->current_slice;
1734
    int picture_structure;
1735
1736
34117
    if (first_slice)
1737
25810
        av_assert0(!h->setup_finished);
1738
1739
34117
    sl->first_mb_addr = get_ue_golomb_long(&sl->gb);
1740
1741
34117
    slice_type = get_ue_golomb_31(&sl->gb);
1742
34117
    if (slice_type > 9) {
1743
        av_log(h->avctx, AV_LOG_ERROR,
1744
               "slice type %d too large at %d\n",
1745
               slice_type, sl->first_mb_addr);
1746
        return AVERROR_INVALIDDATA;
1747
    }
1748
34117
    if (slice_type > 4) {
1749
21742
        slice_type -= 5;
1750
21742
        sl->slice_type_fixed = 1;
1751
    } else
1752
12375
        sl->slice_type_fixed = 0;
1753
1754
34117
    slice_type         = ff_h264_golomb_to_pict_type[slice_type];
1755
34117
    sl->slice_type     = slice_type;
1756
34117
    sl->slice_type_nos = slice_type & 3;
1757
1758
34117
    if (nal->type  == H264_NAL_IDR_SLICE &&
1759
2072
        sl->slice_type_nos != AV_PICTURE_TYPE_I) {
1760
        av_log(h->avctx, AV_LOG_ERROR, "A non-intra slice in an IDR NAL unit.\n");
1761
        return AVERROR_INVALIDDATA;
1762
    }
1763
1764
34117
    sl->pps_id = get_ue_golomb(&sl->gb);
1765
34117
    if (sl->pps_id >= MAX_PPS_COUNT) {
1766
        av_log(h->avctx, AV_LOG_ERROR, "pps_id %u out of range\n", sl->pps_id);
1767
        return AVERROR_INVALIDDATA;
1768
    }
1769
34117
    if (!h->ps.pps_list[sl->pps_id]) {
1770
16
        av_log(h->avctx, AV_LOG_ERROR,
1771
               "non-existing PPS %u referenced\n",
1772
               sl->pps_id);
1773
16
        return AVERROR_INVALIDDATA;
1774
    }
1775
34101
    pps = (const PPS*)h->ps.pps_list[sl->pps_id]->data;
1776
1777
34101
    if (!h->ps.sps_list[pps->sps_id]) {
1778
        av_log(h->avctx, AV_LOG_ERROR,
1779
               "non-existing SPS %u referenced\n", pps->sps_id);
1780
        return AVERROR_INVALIDDATA;
1781
    }
1782
34101
    sps = (const SPS*)h->ps.sps_list[pps->sps_id]->data;
1783
1784
34101
    sl->frame_num = get_bits(&sl->gb, sps->log2_max_frame_num);
1785
34101
    if (!first_slice) {
1786
8306
        if (h->poc.frame_num != sl->frame_num) {
1787
            av_log(h->avctx, AV_LOG_ERROR, "Frame num change from %d to %d\n",
1788
                   h->poc.frame_num, sl->frame_num);
1789
            return AVERROR_INVALIDDATA;
1790
        }
1791
    }
1792
1793
34101
    sl->mb_mbaff       = 0;
1794
1795
34101
    if (sps->frame_mbs_only_flag) {
1796
20359
        picture_structure = PICT_FRAME;
1797
    } else {
1798

13742
        if (!sps->direct_8x8_inference_flag && slice_type == AV_PICTURE_TYPE_B) {
1799
            av_log(h->avctx, AV_LOG_ERROR, "This stream was generated by a broken encoder, invalid 8x8 inference\n");
1800
            return -1;
1801
        }
1802
13742
        field_pic_flag = get_bits1(&sl->gb);
1803
13742
        if (field_pic_flag) {
1804
8477
            bottom_field_flag = get_bits1(&sl->gb);
1805
8477
            picture_structure = PICT_TOP_FIELD + bottom_field_flag;
1806
        } else {
1807
5265
            picture_structure = PICT_FRAME;
1808
        }
1809
    }
1810
34101
    sl->picture_structure      = picture_structure;
1811
34101
    sl->mb_field_decoding_flag = picture_structure != PICT_FRAME;
1812
1813
34101
    if (picture_structure == PICT_FRAME) {
1814
25624
        sl->curr_pic_num = sl->frame_num;
1815
25624
        sl->max_pic_num  = 1 << sps->log2_max_frame_num;
1816
    } else {
1817
8477
        sl->curr_pic_num = 2 * sl->frame_num + 1;
1818
8477
        sl->max_pic_num  = 1 << (sps->log2_max_frame_num + 1);
1819
    }
1820
1821
34101
    if (nal->type == H264_NAL_IDR_SLICE)
1822
2072
        get_ue_golomb_long(&sl->gb); /* idr_pic_id */
1823
1824
34101
    if (sps->poc_type == 0) {
1825
26921
        sl->poc_lsb = get_bits(&sl->gb, sps->log2_max_poc_lsb);
1826
1827

26921
        if (pps->pic_order_present == 1 && picture_structure == PICT_FRAME)
1828
5830
            sl->delta_poc_bottom = get_se_golomb(&sl->gb);
1829
    }
1830
1831

34101
    if (sps->poc_type == 1 && !sps->delta_pic_order_always_zero_flag) {
1832
2848
        sl->delta_poc[0] = get_se_golomb(&sl->gb);
1833
1834

2848
        if (pps->pic_order_present == 1 && picture_structure == PICT_FRAME)
1835
453
            sl->delta_poc[1] = get_se_golomb(&sl->gb);
1836
    }
1837
1838
34101
    sl->redundant_pic_count = 0;
1839
34101
    if (pps->redundant_pic_cnt_present)
1840
8
        sl->redundant_pic_count = get_ue_golomb(&sl->gb);
1841
1842
34101
    if (sl->slice_type_nos == AV_PICTURE_TYPE_B)
1843
11926
        sl->direct_spatial_mv_pred = get_bits1(&sl->gb);
1844
1845
34101
    ret = ff_h264_parse_ref_count(&sl->list_count, sl->ref_count,
1846
                                  &sl->gb, pps, sl->slice_type_nos,
1847
34101
                                  picture_structure, h->avctx);
1848
34101
    if (ret < 0)
1849
4
        return ret;
1850
1851
34097
    if (sl->slice_type_nos != AV_PICTURE_TYPE_I) {
1852
29873
       ret = ff_h264_decode_ref_pic_list_reordering(sl, h->avctx);
1853
29873
       if (ret < 0) {
1854
3
           sl->ref_count[1] = sl->ref_count[0] = 0;
1855
3
           return ret;
1856
       }
1857
    }
1858
1859
34094
    sl->pwt.use_weight = 0;
1860
102282
    for (i = 0; i < 2; i++) {
1861
68188
        sl->pwt.luma_weight_flag[i]   = 0;
1862
68188
        sl->pwt.chroma_weight_flag[i] = 0;
1863
    }
1864

34094
    if ((pps->weighted_pred && sl->slice_type_nos == AV_PICTURE_TYPE_P) ||
1865
32775
        (pps->weighted_bipred_idc == 1 &&
1866
287
         sl->slice_type_nos == AV_PICTURE_TYPE_B)) {
1867
1597
        ret = ff_h264_pred_weight_table(&sl->gb, sps, sl->ref_count,
1868
                                  sl->slice_type_nos, &sl->pwt,
1869
1597
                                  picture_structure, h->avctx);
1870
1597
        if (ret < 0)
1871
            return ret;
1872
    }
1873
1874
34094
    sl->explicit_ref_marking = 0;
1875
34094
    if (nal->ref_idc) {
1876
22750
        ret = ff_h264_decode_ref_pic_marking(sl, &sl->gb, nal, h->avctx);
1877

22750
        if (ret < 0 && (h->avctx->err_recognition & AV_EF_EXPLODE))
1878
            return AVERROR_INVALIDDATA;
1879
    }
1880
1881

34094
    if (sl->slice_type_nos != AV_PICTURE_TYPE_I && pps->cabac) {
1882
15725
        tmp = get_ue_golomb_31(&sl->gb);
1883
15725
        if (tmp > 2) {
1884
            av_log(h->avctx, AV_LOG_ERROR, "cabac_init_idc %u overflow\n", tmp);
1885
            return AVERROR_INVALIDDATA;
1886
        }
1887
15725
        sl->cabac_init_idc = tmp;
1888
    }
1889
1890
34094
    sl->last_qscale_diff = 0;
1891
34094
    tmp = pps->init_qp + (unsigned)get_se_golomb(&sl->gb);
1892
34094
    if (tmp > 51 + 6 * (sps->bit_depth_luma - 8)) {
1893
        av_log(h->avctx, AV_LOG_ERROR, "QP %u out of range\n", tmp);
1894
        return AVERROR_INVALIDDATA;
1895
    }
1896
34094
    sl->qscale       = tmp;
1897
34094
    sl->chroma_qp[0] = get_chroma_qp(pps, 0, sl->qscale);
1898
34094
    sl->chroma_qp[1] = get_chroma_qp(pps, 1, sl->qscale);
1899
    // FIXME qscale / qp ... stuff
1900
34094
    if (sl->slice_type == AV_PICTURE_TYPE_SP)
1901
        get_bits1(&sl->gb); /* sp_for_switch_flag */
1902
34094
    if (sl->slice_type == AV_PICTURE_TYPE_SP ||
1903
34094
        sl->slice_type == AV_PICTURE_TYPE_SI)
1904
        get_se_golomb(&sl->gb); /* slice_qs_delta */
1905
1906
34094
    sl->deblocking_filter     = 1;
1907
34094
    sl->slice_alpha_c0_offset = 0;
1908
34094
    sl->slice_beta_offset     = 0;
1909
34094
    if (pps->deblocking_filter_parameters_present) {
1910
19832
        tmp = get_ue_golomb_31(&sl->gb);
1911
19832
        if (tmp > 2) {
1912
            av_log(h->avctx, AV_LOG_ERROR,
1913
                   "deblocking_filter_idc %u out of range\n", tmp);
1914
            return AVERROR_INVALIDDATA;
1915
        }
1916
19832
        sl->deblocking_filter = tmp;
1917
19832
        if (sl->deblocking_filter < 2)
1918
17331
            sl->deblocking_filter ^= 1;  // 1<->0
1919
1920
19832
        if (sl->deblocking_filter) {
1921
12897
            int slice_alpha_c0_offset_div2 = get_se_golomb(&sl->gb);
1922
12897
            int slice_beta_offset_div2     = get_se_golomb(&sl->gb);
1923

12897
            if (slice_alpha_c0_offset_div2 >  6 ||
1924
12897
                slice_alpha_c0_offset_div2 < -6 ||
1925
12897
                slice_beta_offset_div2 >  6     ||
1926
                slice_beta_offset_div2 < -6) {
1927
                av_log(h->avctx, AV_LOG_ERROR,
1928
                       "deblocking filter parameters %d %d out of range\n",
1929
                       slice_alpha_c0_offset_div2, slice_beta_offset_div2);
1930
                return AVERROR_INVALIDDATA;
1931
            }
1932
12897
            sl->slice_alpha_c0_offset = slice_alpha_c0_offset_div2 * 2;
1933
12897
            sl->slice_beta_offset     = slice_beta_offset_div2 * 2;
1934
        }
1935
    }
1936
1937
34094
    return 0;
1938
}
1939
1940
/* do all the per-slice initialization needed before we can start decoding the
1941
 * actual MBs */
1942
34013
static int h264_slice_init(H264Context *h, H264SliceContext *sl,
1943
                           const H2645NAL *nal)
1944
{
1945
34013
    int i, j, ret = 0;
1946
1947

34013
    if (h->picture_idr && nal->type != H264_NAL_IDR_SLICE) {
1948
        av_log(h->avctx, AV_LOG_ERROR, "Invalid mix of IDR and non-IDR slices\n");
1949
        return AVERROR_INVALIDDATA;
1950
    }
1951
1952
    av_assert1(h->mb_num == h->mb_width * h->mb_height);
1953

34013
    if (sl->first_mb_addr << FIELD_OR_MBAFF_PICTURE(h) >= h->mb_num ||
1954
34013
        sl->first_mb_addr >= h->mb_num) {
1955
        av_log(h->avctx, AV_LOG_ERROR, "first_mb_in_slice overflow\n");
1956
        return AVERROR_INVALIDDATA;
1957
    }
1958
34013
    sl->resync_mb_x = sl->mb_x =  sl->first_mb_addr % h->mb_width;
1959
68026
    sl->resync_mb_y = sl->mb_y = (sl->first_mb_addr / h->mb_width) <<
1960

34013
                                 FIELD_OR_MBAFF_PICTURE(h);
1961
34013
    if (h->picture_structure == PICT_BOTTOM_FIELD)
1962
4196
        sl->resync_mb_y = sl->mb_y = sl->mb_y + 1;
1963
    av_assert1(sl->mb_y < h->mb_height);
1964
1965
34013
    ret = ff_h264_build_ref_list(h, sl);
1966
34013
    if (ret < 0)
1967
        return ret;
1968
1969
34013
    if (h->ps.pps->weighted_bipred_idc == 2 &&
1970
2419
        sl->slice_type_nos == AV_PICTURE_TYPE_B) {
1971
1588
        implicit_weight_table(h, sl, -1);
1972
1588
        if (FRAME_MBAFF(h)) {
1973
855
            implicit_weight_table(h, sl, 0);
1974
855
            implicit_weight_table(h, sl, 1);
1975
        }
1976
    }
1977
1978

34013
    if (sl->slice_type_nos == AV_PICTURE_TYPE_B && !sl->direct_spatial_mv_pred)
1979
7703
        ff_h264_direct_dist_scale_factor(h, sl);
1980
34013
    if (!h->setup_finished)
1981
34013
        ff_h264_direct_ref_list_init(h, sl);
1982
1983
34013
    if (h->avctx->skip_loop_filter >= AVDISCARD_ALL ||
1984
34013
        (h->avctx->skip_loop_filter >= AVDISCARD_NONKEY &&
1985
         h->nal_unit_type != H264_NAL_IDR_SLICE) ||
1986
34013
        (h->avctx->skip_loop_filter >= AVDISCARD_NONINTRA &&
1987
         sl->slice_type_nos != AV_PICTURE_TYPE_I) ||
1988
34013
        (h->avctx->skip_loop_filter >= AVDISCARD_BIDIR  &&
1989
         sl->slice_type_nos == AV_PICTURE_TYPE_B) ||
1990
34013
        (h->avctx->skip_loop_filter >= AVDISCARD_NONREF &&
1991
         nal->ref_idc == 0))
1992
        sl->deblocking_filter = 0;
1993
1994

34013
    if (sl->deblocking_filter == 1 && h->nb_slice_ctx > 1) {
1995
        if (h->avctx->flags2 & AV_CODEC_FLAG2_FAST) {
1996
            /* Cheat slightly for speed:
1997
             * Do not bother to deblock across slices. */
1998
            sl->deblocking_filter = 2;
1999
        } else {
2000
            h->postpone_filter = 1;
2001
        }
2002
    }
2003
34013
    sl->qp_thresh = 15 -
2004
34013
                   FFMIN(sl->slice_alpha_c0_offset, sl->slice_beta_offset) -
2005
34013
                   FFMAX3(0,
2006
                          h->ps.pps->chroma_qp_index_offset[0],
2007
34013
                          h->ps.pps->chroma_qp_index_offset[1]) +
2008
34013
                   6 * (h->ps.sps->bit_depth_luma - 8);
2009
2010
34013
    sl->slice_num       = ++h->current_slice;
2011
2012
34013
    if (sl->slice_num)
2013
34013
        h->slice_row[(sl->slice_num-1)&(MAX_SLICES-1)]= sl->resync_mb_y;
2014
34013
    if (   h->slice_row[sl->slice_num&(MAX_SLICES-1)] + 3 >= sl->resync_mb_y
2015
31344
        && h->slice_row[sl->slice_num&(MAX_SLICES-1)] <= sl->resync_mb_y
2016
23531
        && sl->slice_num >= MAX_SLICES) {
2017
        //in case of ASO this check needs to be updated depending on how we decide to assign slice numbers in this case
2018
        av_log(h->avctx, AV_LOG_WARNING, "Possibly too many slices (%d >= %d), increase MAX_SLICES and recompile if there are artifacts\n", sl->slice_num, MAX_SLICES);
2019
    }
2020
2021
102039
    for (j = 0; j < 2; j++) {
2022
        int id_list[16];
2023
68026
        int *ref2frm = h->ref2frm[sl->slice_num & (MAX_SLICES - 1)][j];
2024
1156442
        for (i = 0; i < 16; i++) {
2025
1088416
            id_list[i] = 60;
2026

1088416
            if (j < sl->list_count && i < sl->ref_count[j] &&
2027
133813
                sl->ref_list[j][i].parent->f->buf[0]) {
2028
                int k;
2029
133813
                AVBuffer *buf = sl->ref_list[j][i].parent->f->buf[0]->buffer;
2030
461295
                for (k = 0; k < h->short_ref_count; k++)
2031
459346
                    if (h->short_ref[k]->f->buf[0]->buffer == buf) {
2032
131864
                        id_list[i] = k;
2033
131864
                        break;
2034
                    }
2035
143929
                for (k = 0; k < h->long_ref_count; k++)
2036

11870
                    if (h->long_ref[k] && h->long_ref[k]->f->buf[0]->buffer == buf) {
2037
1754
                        id_list[i] = h->short_ref_count + k;
2038
1754
                        break;
2039
                    }
2040
            }
2041
        }
2042
2043
68026
        ref2frm[0] =
2044
68026
        ref2frm[1] = -1;
2045
1156442
        for (i = 0; i < 16; i++)
2046
1088416
            ref2frm[i + 2] = 4 * id_list[i] + (sl->ref_list[j][i].reference & 3);
2047
68026
        ref2frm[18 + 0] =
2048
68026
        ref2frm[18 + 1] = -1;
2049
2244858
        for (i = 16; i < 48; i++)
2050
2176832
            ref2frm[i + 4] = 4 * id_list[(i - 16) >> 1] +
2051
2176832
                             (sl->ref_list[j][i].reference & 3);
2052
    }
2053
2054
34013
    if (h->avctx->debug & FF_DEBUG_PICT_INFO) {
2055
        av_log(h->avctx, AV_LOG_DEBUG,
2056
               "slice:%d %s mb:%d %c%s%s frame:%d poc:%d/%d ref:%d/%d qp:%d loop:%d:%d:%d weight:%d%s %s\n",
2057
               sl->slice_num,
2058
               (h->picture_structure == PICT_FRAME ? "F" : h->picture_structure == PICT_TOP_FIELD ? "T" : "B"),
2059
               sl->mb_y * h->mb_width + sl->mb_x,
2060
               av_get_picture_type_char(sl->slice_type),
2061
               sl->slice_type_fixed ? " fix" : "",
2062
               nal->type == H264_NAL_IDR_SLICE ? " IDR" : "",
2063
               h->poc.frame_num,
2064
               h->cur_pic_ptr->field_poc[0],
2065
               h->cur_pic_ptr->field_poc[1],
2066
               sl->ref_count[0], sl->ref_count[1],
2067
               sl->qscale,
2068
               sl->deblocking_filter,
2069
               sl->slice_alpha_c0_offset, sl->slice_beta_offset,
2070
               sl->pwt.use_weight,
2071
               sl->pwt.use_weight == 1 && sl->pwt.use_weight_chroma ? "c" : "",
2072
               sl->slice_type == AV_PICTURE_TYPE_B ? (sl->direct_spatial_mv_pred ? "SPAT" : "TEMP") : "");
2073
    }
2074
2075
34013
    return 0;
2076
}
2077
2078
34117
int ff_h264_queue_decode_slice(H264Context *h, const H2645NAL *nal)
2079
{
2080
34117
    H264SliceContext *sl = h->slice_ctx + h->nb_slice_ctx_queued;
2081

34117
    int first_slice = sl == h->slice_ctx && !h->current_slice;
2082
    int ret;
2083
2084
34117
    sl->gb = nal->gb;
2085
2086
34117
    ret = h264_slice_header_parse(h, sl, nal);
2087
34117
    if (ret < 0)
2088
23
        return ret;
2089
2090
    // discard redundant pictures
2091
34094
    if (sl->redundant_pic_count > 0) {
2092
1
        sl->ref_count[0] = sl->ref_count[1] = 0;
2093
1
        return 0;
2094
    }
2095
2096

34093
    if (sl->first_mb_addr == 0 || !h->current_slice) {
2097
25980
        if (h->setup_finished) {
2098
            av_log(h->avctx, AV_LOG_ERROR, "Too many fields\n");
2099
            return AVERROR_INVALIDDATA;
2100
        }
2101
    }
2102
2103
34093
    if (sl->first_mb_addr == 0) { // FIXME better field boundary detection
2104
25977
        if (h->current_slice) {
2105
            // this slice starts a new field
2106
            // first decode any pending queued slices
2107
193
            if (h->nb_slice_ctx_queued) {
2108
                H264SliceContext tmp_ctx;
2109
2110
                ret = ff_h264_execute_decode_slices(h);
2111
                if (ret < 0 && (h->avctx->err_recognition & AV_EF_EXPLODE))
2112
                    return ret;
2113
2114
                memcpy(&tmp_ctx, h->slice_ctx, sizeof(tmp_ctx));
2115
                memcpy(h->slice_ctx, sl, sizeof(tmp_ctx));
2116
                memcpy(sl, &tmp_ctx, sizeof(tmp_ctx));
2117
                sl = h->slice_ctx;
2118
            }
2119
2120

193
            if (h->cur_pic_ptr && FIELD_PICTURE(h) && h->first_field) {
2121
193
                ret = ff_h264_field_end(h, h->slice_ctx, 1);
2122
193
                if (ret < 0)
2123
                    return ret;
2124
            } else if (h->cur_pic_ptr && !FIELD_PICTURE(h) && !h->first_field && h->nal_unit_type  == H264_NAL_IDR_SLICE) {
2125
                av_log(h, AV_LOG_WARNING, "Broken frame packetizing\n");
2126
                ret = ff_h264_field_end(h, h->slice_ctx, 1);
2127
                ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX, 0);
2128
                ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX, 1);
2129
                h->cur_pic_ptr = NULL;
2130
                if (ret < 0)
2131
                    return ret;
2132
            } else
2133
                return AVERROR_INVALIDDATA;
2134
        }
2135
2136
25977
        if (!h->first_field) {
2137

22744
            if (h->cur_pic_ptr && !h->droppable) {
2138
299
                ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX,
2139
299
                                          h->picture_structure == PICT_BOTTOM_FIELD);
2140
            }
2141
22744
            h->cur_pic_ptr = NULL;
2142
        }
2143
    }
2144
2145
34093
    if (!h->current_slice)
2146
25980
        av_assert0(sl == h->slice_ctx);
2147
2148

34093
    if (h->current_slice == 0 && !h->first_field) {
2149
22747
        if (
2150

22747
            (h->avctx->skip_frame >= AVDISCARD_NONREF && !h->nal_ref_idc) ||
2151

22747
            (h->avctx->skip_frame >= AVDISCARD_BIDIR  && sl->slice_type_nos == AV_PICTURE_TYPE_B) ||
2152

22703
            (h->avctx->skip_frame >= AVDISCARD_NONINTRA && sl->slice_type_nos != AV_PICTURE_TYPE_I) ||
2153

22667
            (h->avctx->skip_frame >= AVDISCARD_NONKEY && h->nal_unit_type != H264_NAL_IDR_SLICE && h->sei.recovery_point.recovery_frame_cnt < 0) ||
2154
22667
            h->avctx->skip_frame >= AVDISCARD_ALL) {
2155
80
            return 0;
2156
        }
2157
    }
2158
2159
34013
    if (!first_slice) {
2160
8306
        const PPS *pps = (const PPS*)h->ps.pps_list[sl->pps_id]->data;
2161
2162
8306
        if (h->ps.pps->sps_id != pps->sps_id ||
2163
8306
            h->ps.pps->transform_8x8_mode != pps->transform_8x8_mode /*||
2164
            (h->setup_finished && h->ps.pps != pps)*/) {
2165
            av_log(h->avctx, AV_LOG_ERROR, "PPS changed between slices\n");
2166
            return AVERROR_INVALIDDATA;
2167
        }
2168
8306
        if (h->ps.sps != (const SPS*)h->ps.sps_list[h->ps.pps->sps_id]->data) {
2169
            av_log(h->avctx, AV_LOG_ERROR,
2170
               "SPS changed in the middle of the frame\n");
2171
            return AVERROR_INVALIDDATA;
2172
        }
2173
    }
2174
2175
34013
    if (h->current_slice == 0) {
2176
25900
        ret = h264_field_start(h, sl, nal, first_slice);
2177
25900
        if (ret < 0)
2178
            return ret;
2179
    } else {
2180
8113
        if (h->picture_structure != sl->picture_structure ||
2181
8113
            h->droppable         != (nal->ref_idc == 0)) {
2182
            av_log(h->avctx, AV_LOG_ERROR,
2183
                   "Changing field mode (%d -> %d) between slices is not allowed\n",
2184
                   h->picture_structure, sl->picture_structure);
2185
            return AVERROR_INVALIDDATA;
2186
8113
        } else if (!h->cur_pic_ptr) {
2187
            av_log(h->avctx, AV_LOG_ERROR,
2188
                   "unset cur_pic_ptr on slice %d\n",
2189
                   h->current_slice + 1);
2190
            return AVERROR_INVALIDDATA;
2191
        }
2192
    }
2193
2194
34013
    ret = h264_slice_init(h, sl, nal);
2195
34013
    if (ret < 0)
2196
        return ret;
2197
2198
34013
    h->nb_slice_ctx_queued++;
2199
2200
34013
    return 0;
2201
}
2202
2203
int ff_h264_get_slice_type(const H264SliceContext *sl)
2204
{
2205
    switch (sl->slice_type) {
2206
    case AV_PICTURE_TYPE_P:
2207
        return 0;
2208
    case AV_PICTURE_TYPE_B:
2209
        return 1;
2210
    case AV_PICTURE_TYPE_I:
2211
        return 2;
2212
    case AV_PICTURE_TYPE_SP:
2213
        return 3;
2214
    case AV_PICTURE_TYPE_SI:
2215
        return 4;
2216
    default:
2217
        return AVERROR_INVALIDDATA;
2218
    }
2219
}
2220
2221
10672812
static av_always_inline void fill_filter_caches_inter(const H264Context *h,
2222
                                                      H264SliceContext *sl,
2223
                                                      int mb_type, int top_xy,
2224
                                                      int left_xy[LEFT_MBS],
2225
                                                      int top_type,
2226
                                                      int left_type[LEFT_MBS],
2227
                                                      int mb_xy, int list)
2228
{
2229
10672812
    int b_stride = h->b_stride;
2230
10672812
    int16_t(*mv_dst)[2] = &sl->mv_cache[list][scan8[0]];
2231
10672812
    int8_t *ref_cache   = &sl->ref_cache[list][scan8[0]];
2232

10672812
    if (IS_INTER(mb_type) || IS_DIRECT(mb_type)) {
2233
10672812
        if (USES_LIST(top_type, list)) {
2234
8458549
            const int b_xy  = h->mb2b_xy[top_xy] + 3 * b_stride;
2235
8458549
            const int b8_xy = 4 * top_xy + 2;
2236
8458549
            const int *ref2frm = &h->ref2frm[h->slice_table[top_xy] & (MAX_SLICES - 1)][list][(MB_MBAFF(sl) ? 20 : 2)];
2237
8458549
            AV_COPY128(mv_dst - 1 * 8, h->cur_pic.motion_val[list][b_xy + 0]);
2238
8458549
            ref_cache[0 - 1 * 8] =
2239
8458549
            ref_cache[1 - 1 * 8] = ref2frm[h->cur_pic.ref_index[list][b8_xy + 0]];
2240
8458549
            ref_cache[2 - 1 * 8] =
2241
8458549
            ref_cache[3 - 1 * 8] = ref2frm[h->cur_pic.ref_index[list][b8_xy + 1]];
2242
        } else {
2243
2214263
            AV_ZERO128(mv_dst - 1 * 8);
2244
2214263
            AV_WN32A(&ref_cache[0 - 1 * 8], ((LIST_NOT_USED) & 0xFF) * 0x01010101u);
2245
        }
2246
2247
10672812
        if (!IS_INTERLACED(mb_type ^ left_type[LTOP])) {
2248
10273225
            if (USES_LIST(left_type[LTOP], list)) {
2249
8487737
                const int b_xy  = h->mb2b_xy[left_xy[LTOP]] + 3;
2250
8487737
                const int b8_xy = 4 * left_xy[LTOP] + 1;
2251
8487737
                const int *ref2frm = &h->ref2frm[h->slice_table[left_xy[LTOP]] & (MAX_SLICES - 1)][list][(MB_MBAFF(sl) ? 20 : 2)];
2252
8487737
                AV_COPY32(mv_dst - 1 +  0, h->cur_pic.motion_val[list][b_xy + b_stride * 0]);
2253
8487737
                AV_COPY32(mv_dst - 1 +  8, h->cur_pic.motion_val[list][b_xy + b_stride * 1]);
2254
8487737
                AV_COPY32(mv_dst - 1 + 16, h->cur_pic.motion_val[list][b_xy + b_stride * 2]);
2255
8487737
                AV_COPY32(mv_dst - 1 + 24, h->cur_pic.motion_val[list][b_xy + b_stride * 3]);
2256
8487737
                ref_cache[-1 +  0] =
2257
8487737
                ref_cache[-1 +  8] = ref2frm[h->cur_pic.ref_index[list][b8_xy + 2 * 0]];
2258
8487737
                ref_cache[-1 + 16] =
2259
8487737
                ref_cache[-1 + 24] = ref2frm[h->cur_pic.ref_index[list][b8_xy + 2 * 1]];
2260
            } else {
2261
1785488
                AV_ZERO32(mv_dst - 1 +  0);
2262
1785488
                AV_ZERO32(mv_dst - 1 +  8);
2263
1785488
                AV_ZERO32(mv_dst - 1 + 16);
2264
1785488
                AV_ZERO32(mv_dst - 1 + 24);
2265
1785488
                ref_cache[-1 +  0] =
2266
1785488
                ref_cache[-1 +  8] =
2267
1785488
                ref_cache[-1 + 16] =
2268
1785488
                ref_cache[-1 + 24] = LIST_NOT_USED;
2269
            }
2270
        }
2271
    }
2272
2273
10672812
    if (!USES_LIST(mb_type, list)) {
2274
1236695
        fill_rectangle(mv_dst, 4, 4, 8, pack16to32(0, 0), 4);
2275
1236695
        AV_WN32A(&ref_cache[0 * 8], ((LIST_NOT_USED) & 0xFF) * 0x01010101u);
2276
1236695
        AV_WN32A(&ref_cache[1 * 8], ((LIST_NOT_USED) & 0xFF) * 0x01010101u);
2277
1236695
        AV_WN32A(&ref_cache[2 * 8], ((LIST_NOT_USED) & 0xFF) * 0x01010101u);
2278
1236695
        AV_WN32A(&ref_cache[3 * 8], ((LIST_NOT_USED) & 0xFF) * 0x01010101u);
2279
1236695
        return;
2280
    }
2281
2282
    {
2283
9436117
        int8_t *ref = &h->cur_pic.ref_index[list][4 * mb_xy];
2284
9436117
        const int *ref2frm = &h->ref2frm[sl->slice_num & (MAX_SLICES - 1)][list][(MB_MBAFF(sl) ? 20 : 2)];
2285
9436117
        uint32_t ref01 = (pack16to32(ref2frm[ref[0]], ref2frm[ref[1]]) & 0x00FF00FF) * 0x0101;
2286
9436117
        uint32_t ref23 = (pack16to32(ref2frm[ref[2]], ref2frm[ref[3]]) & 0x00FF00FF) * 0x0101;
2287
9436117
        AV_WN32A(&ref_cache[0 * 8], ref01);
2288
9436117
        AV_WN32A(&ref_cache[1 * 8], ref01);
2289
9436117
        AV_WN32A(&ref_cache[2 * 8], ref23);
2290
9436117
        AV_WN32A(&ref_cache[3 * 8], ref23);
2291
    }
2292
2293
    {
2294
9436117
        int16_t(*mv_src)[2] = &h->cur_pic.motion_val[list][4 * sl->mb_x + 4 * sl->mb_y * b_stride];
2295
9436117
        AV_COPY128(mv_dst + 8 * 0, mv_src + 0 * b_stride);
2296
9436117
        AV_COPY128(mv_dst + 8 * 1, mv_src + 1 * b_stride);
2297
9436117
        AV_COPY128(mv_dst + 8 * 2, mv_src + 2 * b_stride);
2298
9436117
        AV_COPY128(mv_dst + 8 * 3, mv_src + 3 * b_stride);
2299
    }
2300
}
2301
2302
/**
2303
 * @return non zero if the loop filter can be skipped
2304
 */
2305
10754602
static int fill_filter_caches(const H264Context *h, H264SliceContext *sl, int mb_type)
2306
{
2307
10754602
    const int mb_xy = sl->mb_xy;
2308
    int top_xy, left_xy[LEFT_MBS];
2309
    int top_type, left_type[LEFT_MBS];
2310
    uint8_t *nnz;
2311
    uint8_t *nnz_cache;
2312
2313
10754602
    top_xy = mb_xy - (h->mb_stride << MB_FIELD(sl));
2314
2315
10754602
    left_xy[LBOT] = left_xy[LTOP] = mb_xy - 1;
2316
10754602
    if (FRAME_MBAFF(h)) {
2317
1814136
        const int left_mb_field_flag = IS_INTERLACED(h->cur_pic.mb_type[mb_xy - 1]);
2318
1814136
        const int curr_mb_field_flag = IS_INTERLACED(mb_type);
2319
1814136
        if (sl->mb_y & 1) {
2320
907068
            if (left_mb_field_flag != curr_mb_field_flag)
2321
189266
                left_xy[LTOP] -= h->mb_stride;
2322
        } else {
2323
907068
            if (curr_mb_field_flag)
2324
241257
                top_xy += h->mb_stride &
2325
241257
                          (((h->cur_pic.mb_type[top_xy] >> 7) & 1) - 1);
2326
907068
            if (left_mb_field_flag != curr_mb_field_flag)
2327
189266
                left_xy[LBOT] += h->mb_stride;
2328
        }
2329
    }
2330
2331
10754602
    sl->top_mb_xy        = top_xy;
2332
10754602
    sl->left_mb_xy[LTOP] = left_xy[LTOP];
2333
10754602
    sl->left_mb_xy[LBOT] = left_xy[LBOT];
2334
    {
2335
        /* For sufficiently low qp, filtering wouldn't do anything.
2336
         * This is a conservative estimate: could also check beta_offset
2337
         * and more accurate chroma_qp. */
2338
10754602
        int qp_thresh = sl->qp_thresh; // FIXME strictly we should store qp_thresh for each mb of a slice
2339
10754602
        int qp        = h->cur_pic.qscale_table[mb_xy];
2340
10754602
        if (qp <= qp_thresh &&
2341
992772
            (left_xy[LTOP] < 0 ||
2342

992772
             ((qp + h->cur_pic.qscale_table[left_xy[LTOP]] + 1) >> 1) <= qp_thresh) &&
2343
889295
            (top_xy < 0 ||
2344
889295
             ((qp + h->cur_pic.qscale_table[top_xy] + 1) >> 1) <= qp_thresh)) {
2345
861652
            if (!FRAME_MBAFF(h))
2346
639207
                return 1;
2347
222445
            if ((left_xy[LTOP] < 0 ||
2348
222351
                 ((qp + h->cur_pic.qscale_table[left_xy[LBOT]] + 1) >> 1) <= qp_thresh) &&
2349
222040
                (top_xy < h->mb_stride ||
2350
207469
                 ((qp + h->cur_pic.qscale_table[top_xy - h->mb_stride] + 1) >> 1) <= qp_thresh))
2351
205646
                return 1;
2352
        }
2353
    }
2354
2355
9909749
    top_type        = h->cur_pic.mb_type[top_xy];
2356
9909749
    left_type[LTOP] = h->cur_pic.mb_type[left_xy[LTOP]];
2357
9909749
    left_type[LBOT] = h->cur_pic.mb_type[left_xy[LBOT]];
2358
9909749
    if (sl->deblocking_filter == 2) {
2359
470376
        if (h->slice_table[top_xy] != sl->slice_num)
2360
56878
            top_type = 0;
2361
470376
        if (h->slice_table[left_xy[LBOT]] != sl->slice_num)
2362
13874
            left_type[LTOP] = left_type[LBOT] = 0;
2363
    } else {
2364
9439373
        if (h->slice_table[top_xy] == 0xFFFF)
2365
450171
            top_type = 0;
2366
9439373
        if (h->slice_table[left_xy[LBOT]] == 0xFFFF)
2367
289400
            left_type[LTOP] = left_type[LBOT] = 0;
2368
    }
2369
9909749
    sl->top_type        = top_type;
2370
9909749
    sl->left_type[LTOP] = left_type[LTOP];
2371
9909749
    sl->left_type[LBOT] = left_type[LBOT];
2372
2373
9909749
    if (IS_INTRA(mb_type))
2374
2860332
        return 0;
2375
2376
7049417
    fill_filter_caches_inter(h, sl, mb_type, top_xy, left_xy,
2377
                             top_type, left_type, mb_xy, 0);
2378
7049417
    if (sl->list_count == 2)
2379
3623395
        fill_filter_caches_inter(h, sl, mb_type, top_xy, left_xy,
2380
                                 top_type, left_type, mb_xy, 1);
2381
2382
7049417
    nnz       = h->non_zero_count[mb_xy];
2383
7049417
    nnz_cache = sl->non_zero_count_cache;
2384
7049417
    AV_COPY32(&nnz_cache[4 + 8 * 1], &nnz[0]);
2385
7049417
    AV_COPY32(&nnz_cache[4 + 8 * 2], &nnz[4]);
2386
7049417
    AV_COPY32(&nnz_cache[4 + 8 * 3], &nnz[8]);
2387
7049417
    AV_COPY32(&nnz_cache[4 + 8 * 4], &nnz[12]);
2388
7049417
    sl->cbp = h->cbp_table[mb_xy];
2389
2390
7049417
    if (top_type) {
2391
6644272
        nnz = h->non_zero_count[top_xy];
2392
6644272
        AV_COPY32(&nnz_cache[4 + 8 * 0], &nnz[3 * 4]);
2393
    }
2394
2395
7049417
    if (left_type[LTOP]) {
2396
6801677
        nnz = h->non_zero_count[left_xy[LTOP]];
2397
6801677
        nnz_cache[3 + 8 * 1] = nnz[3 + 0 * 4];
2398
6801677
        nnz_cache[3 + 8 * 2] = nnz[3 + 1 * 4];
2399
6801677
        nnz_cache[3 + 8 * 3] = nnz[3 + 2 * 4];
2400
6801677
        nnz_cache[3 + 8 * 4] = nnz[3 + 3 * 4];
2401
    }
2402
2403
    /* CAVLC 8x8dct requires NNZ values for residual decoding that differ
2404
     * from what the loop filter needs */
2405

7049417
    if (!CABAC(h) && h->ps.pps->transform_8x8_mode) {
2406
246512
        if (IS_8x8DCT(top_type)) {
2407
107880
            nnz_cache[4 + 8 * 0] =
2408
107880
            nnz_cache[5 + 8 * 0] = (h->cbp_table[top_xy] & 0x4000) >> 12;
2409
107880
            nnz_cache[6 + 8 * 0] =
2410
107880
            nnz_cache[7 + 8 * 0] = (h->cbp_table[top_xy] & 0x8000) >> 12;
2411
        }
2412
246512
        if (IS_8x8DCT(left_type[LTOP])) {
2413
110456
            nnz_cache[3 + 8 * 1] =
2414
110456
            nnz_cache[3 + 8 * 2] = (h->cbp_table[left_xy[LTOP]] & 0x2000) >> 12; // FIXME check MBAFF
2415
        }
2416
246512
        if (IS_8x8DCT(left_type[LBOT])) {
2417
110556
            nnz_cache[3 + 8 * 3] =
2418
110556
            nnz_cache[3 + 8 * 4] = (h->cbp_table[left_xy[LBOT]] & 0x8000) >> 12; // FIXME check MBAFF
2419
        }
2420
2421
246512
        if (IS_8x8DCT(mb_type)) {
2422
104923
            nnz_cache[scan8[0]] =
2423
104923
            nnz_cache[scan8[1]] =
2424
104923
            nnz_cache[scan8[2]] =
2425
104923
            nnz_cache[scan8[3]] = (sl->cbp & 0x1000) >> 12;
2426
2427
104923
            nnz_cache[scan8[0 + 4]] =
2428
104923
            nnz_cache[scan8[1 + 4]] =
2429
104923
            nnz_cache[scan8[2 + 4]] =
2430
104923
            nnz_cache[scan8[3 + 4]] = (sl->cbp & 0x2000) >> 12;
2431
2432
104923
            nnz_cache[scan8[0 + 8]] =
2433
104923
            nnz_cache[scan8[1 + 8]] =
2434
104923
            nnz_cache[scan8[2 + 8]] =
2435
104923
            nnz_cache[scan8[3 + 8]] = (sl->cbp & 0x4000) >> 12;
2436
2437
104923
            nnz_cache[scan8[0 + 12]] =
2438
104923
            nnz_cache[scan8[1 + 12]] =
2439
104923
            nnz_cache[scan8[2 + 12]] =
2440
104923
            nnz_cache[scan8[3 + 12]] = (sl->cbp & 0x8000) >> 12;
2441
        }
2442
    }
2443
2444
7049417
    return 0;
2445
}
2446
2447
358609
static void loop_filter(const H264Context *h, H264SliceContext *sl, int start_x, int end_x)
2448
{
2449
    uint8_t *dest_y, *dest_cb, *dest_cr;
2450
    int linesize, uvlinesize, mb_x, mb_y;
2451
358609
    const int end_mb_y       = sl->mb_y + FRAME_MBAFF(h);
2452
358609
    const int old_slice_type = sl->slice_type;
2453
358609
    const int pixel_shift    = h->pixel_shift;
2454
358609
    const int block_h        = 16 >> h->chroma_y_shift;
2455
2456
358609
    if (h->postpone_filter)
2457
        return;
2458
2459
358609
    if (sl->deblocking_filter) {
2460
10136981
        for (mb_x = start_x; mb_x < end_x; mb_x++)
2461
20602136
            for (mb_y = end_mb_y - FRAME_MBAFF(h); mb_y <= end_mb_y; mb_y++) {
2462
                int mb_xy, mb_type;
2463
10754602
                mb_xy         = sl->mb_xy = mb_x + mb_y * h->mb_stride;
2464
10754602
                mb_type       = h->cur_pic.mb_type[mb_xy];
2465
2466
10754602
                if (FRAME_MBAFF(h))
2467
1814136
                    sl->mb_mbaff               =
2468
1814136
                    sl->mb_field_decoding_flag = !!IS_INTERLACED(mb_type);
2469
2470
10754602
                sl->mb_x = mb_x;
2471
10754602
                sl->mb_y = mb_y;
2472
10754602
                dest_y  = h->cur_pic.f->data[0] +
2473
10754602
                          ((mb_x << pixel_shift) + mb_y * sl->linesize) * 16;
2474
21509204
                dest_cb = h->cur_pic.f->data[1] +
2475
10754602
                          (mb_x << pixel_shift) * (8 << CHROMA444(h)) +
2476
10754602
                          mb_y * sl->uvlinesize * block_h;
2477
21509204
                dest_cr = h->cur_pic.f->data[2] +
2478
10754602
                          (mb_x << pixel_shift) * (8 << CHROMA444(h)) +
2479
10754602
                          mb_y * sl->uvlinesize * block_h;
2480
                // FIXME simplify above
2481
2482
10754602
                if (MB_FIELD(sl)) {
2483
3606552
                    linesize   = sl->mb_linesize   = sl->linesize   * 2;
2484
3606552
                    uvlinesize = sl->mb_uvlinesize = sl->uvlinesize * 2;
2485
3606552
                    if (mb_y & 1) { // FIXME move out of this function?
2486
1802577
                        dest_y  -= sl->linesize   * 15;
2487
1802577
                        dest_cb -= sl->uvlinesize * (block_h - 1);
2488
1802577
                        dest_cr -= sl->uvlinesize * (block_h - 1);
2489
                    }
2490
                } else {
2491
7148050
                    linesize   = sl->mb_linesize   = sl->linesize;
2492
7148050
                    uvlinesize = sl->mb_uvlinesize = sl->uvlinesize;
2493
                }
2494
10754602
                backup_mb_border(h, sl, dest_y, dest_cb, dest_cr, linesize,
2495
                                 uvlinesize, 0);
2496
10754602
                if (fill_filter_caches(h, sl, mb_type))
2497
844853
                    continue;
2498
9909749
                sl->chroma_qp[0] = get_chroma_qp(h->ps.pps, 0, h->cur_pic.qscale_table[mb_xy]);
2499
9909749
                sl->chroma_qp[1] = get_chroma_qp(h->ps.pps, 1, h->cur_pic.qscale_table[mb_xy]);
2500
2501
9909749
                if (FRAME_MBAFF(h)) {
2502
1608490
                    ff_h264_filter_mb(h, sl, mb_x, mb_y, dest_y, dest_cb, dest_cr,
2503
                                      linesize, uvlinesize);
2504
                } else {
2505
8301259
                    ff_h264_filter_mb_fast(h, sl, mb_x, mb_y, dest_y, dest_cb,
2506
                                           dest_cr, linesize, uvlinesize);
2507
                }
2508
            }
2509
    }
2510
358609
    sl->slice_type  = old_slice_type;
2511
358609
    sl->mb_x         = end_x;
2512
358609
    sl->mb_y         = end_mb_y - FRAME_MBAFF(h);
2513
358609
    sl->chroma_qp[0] = get_chroma_qp(h->ps.pps, 0, sl->qscale);
2514
358609
    sl->chroma_qp[1] = get_chroma_qp(h->ps.pps, 1, sl->qscale);
2515
}
2516
2517
22884
static void predict_field_decoding_flag(const H264Context *h, H264SliceContext *sl)
2518
{
2519
22884
    const int mb_xy = sl->mb_x + sl->mb_y * h->mb_stride;
2520
45768
    int mb_type     = (h->slice_table[mb_xy - 1] == sl->slice_num) ?
2521
45768
                      h->cur_pic.mb_type[mb_xy - 1] :
2522
22884
                      (h->slice_table[mb_xy - h->mb_stride] == sl->slice_num) ?
2523
22748
                      h->cur_pic.mb_type[mb_xy - h->mb_stride] : 0;
2524
22884
    sl->mb_mbaff    = sl->mb_field_decoding_flag = IS_INTERLACED(mb_type) ? 1 : 0;
2525
22884
}
2526
2527
/**
2528
 * Draw edges and report progress for the last MB row.
2529
 */
2530
354514
static void decode_finish_row(const H264Context *h, H264SliceContext *sl)
2531
{
2532
354514
    int top            = 16 * (sl->mb_y      >> FIELD_PICTURE(h));
2533
354514
    int pic_height     = 16 *  h->mb_height >> FIELD_PICTURE(h);
2534
354514
    int height         =  16      << FRAME_MBAFF(h);
2535
354514
    int deblock_border = (16 + 4) << FRAME_MBAFF(h);
2536
2537
354514
    if (sl->deblocking_filter) {
2538
286364
        if ((top + height) >= pic_height)
2539
20312
            height += deblock_border;
2540
286364
        top -= deblock_border;
2541
    }
2542
2543

354514
    if (top >= pic_height || (top + height) < 0)
2544
20322
        return;
2545
2546
334192
    height = FFMIN(height, pic_height - top);
2547
334192
    if (top < 0) {
2548
20318
        height = top + height;
2549
20318
        top    = 0;
2550
    }
2551
2552
334192
    ff_h264_draw_horiz_band(h, sl, top, height);
2553
2554

334192
    if (h->droppable || sl->h264->slice_ctx[0].er.error_occurred)
2555
119507
        return;
2556
2557
214685
    ff_thread_report_progress(&h->cur_pic_ptr->tf, top + height - 1,
2558
214685
                              h->picture_structure == PICT_BOTTOM_FIELD);
2559
}
2560
2561
34013
static void er_add_slice(H264SliceContext *sl,
2562
                         int startx, int starty,
2563
                         int endx, int endy, int status)
2564
{
2565
34013
    if (!sl->h264->enable_er)
2566
1200
        return;
2567
2568
    if (CONFIG_ERROR_RESILIENCE) {
2569
32813
        ERContext *er = &sl->h264->slice_ctx[0].er;
2570
2571
32813
        ff_er_add_slice(er, startx, starty, endx, endy, status);
2572
    }
2573
}
2574
2575
34013
static int decode_slice(struct AVCodecContext *avctx, void *arg)
2576
{
2577
34013
    H264SliceContext *sl = arg;
2578
34013
    const H264Context *h = sl->h264;
2579
34013
    int lf_x_start = sl->mb_x;
2580
34013
    int orig_deblock = sl->deblocking_filter;
2581
    int ret;
2582
2583
34013
    sl->linesize   = h->cur_pic_ptr->f->linesize[0];
2584
34013
    sl->uvlinesize = h->cur_pic_ptr->f->linesize[1];
2585
2586
34013
    ret = alloc_scratch_buffers(sl, sl->linesize);
2587
34013
    if (ret < 0)
2588
        return ret;
2589
2590
34013
    sl->mb_skip_run = -1;
2591
2592
34013
    av_assert0(h->block_offset[15] == (4 * ((scan8[15] - scan8[0]) & 7) << h->pixel_shift) + 4 * sl->linesize * ((scan8[15] - scan8[0]) >> 3));
2593
2594
34013
    if (h->postpone_filter)
2595
        sl->deblocking_filter = 0;
2596
2597

34013
    sl->is_complex = FRAME_MBAFF(h) || h->picture_structure != PICT_FRAME ||
2598
                     (CONFIG_GRAY && (h->flags & AV_CODEC_FLAG_GRAY));
2599
2600

34013
    if (!(h->avctx->active_thread_type & FF_THREAD_SLICE) && h->picture_structure == PICT_FRAME && h->slice_ctx[0].er.error_status_table) {
2601
24416
        const int start_i  = av_clip(sl->resync_mb_x + sl->resync_mb_y * h->mb_width, 0, h->mb_num - 1);
2602
24416
        if (start_i) {
2603
5289
            int prev_status = h->slice_ctx[0].er.error_status_table[h->slice_ctx[0].er.mb_index2xy[start_i - 1]];
2604
5289
            prev_status &= ~ VP_START;
2605
5289
            if (prev_status != (ER_MV_END | ER_DC_END | ER_AC_END))
2606
13
                h->slice_ctx[0].er.error_occurred = 1;
2607
        }
2608
    }
2609
2610
34013
    if (h->ps.pps->cabac) {
2611
        /* realign */
2612
18086
        align_get_bits(&sl->gb);
2613
2614
        /* init cabac */
2615
36172
        ret = ff_init_cabac_decoder(&sl->cabac,
2616
18086
                              sl->gb.buffer + get_bits_count(&sl->gb) / 8,
2617
18086
                              (get_bits_left(&sl->gb) + 7) / 8);
2618
18086
        if (ret < 0)
2619
            return ret;
2620
2621
18086
        ff_h264_init_cabac_states(h, sl);
2622
2623
7678677
        for (;;) {
2624
            // START_TIMER
2625
            int ret, eos;
2626
7696763
            if (sl->mb_x + sl->mb_y * h->mb_width >= sl->next_slice_idx) {
2627
                av_log(h->avctx, AV_LOG_ERROR, "Slice overlaps with next at %d\n",
2628
                       sl->next_slice_idx);
2629
                er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y, sl->mb_x,
2630
                             sl->mb_y, ER_MB_ERROR);
2631
                return AVERROR_INVALIDDATA;
2632
            }
2633
2634
7696763
            ret = ff_h264_decode_mb_cabac(h, sl);
2635
            // STOP_TIMER("decode_mb_cabac")
2636
2637
7696763
            if (ret >= 0)
2638
7696762
                ff_h264_hl_decode_mb(h, sl);
2639
2640
            // FIXME optimal? or let mb_decode decode 16x32 ?
2641

7696763
            if (ret >= 0 && FRAME_MBAFF(h)) {
2642
798720
                sl->mb_y++;
2643
2644
798720
                ret = ff_h264_decode_mb_cabac(h, sl);
2645
2646
798720
                if (ret >= 0)
2647
798720
                    ff_h264_hl_decode_mb(h, sl);
2648
798720
                sl->mb_y--;
2649
            }
2650
7696763
            eos = get_cabac_terminate(&sl->cabac);
2651
2652
7696763
            if ((h->workaround_bugs & FF_BUG_TRUNCATED) &&
2653
                sl->cabac.bytestream > sl->cabac.bytestream_end + 2) {
2654
                er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y, sl->mb_x - 1,
2655
                             sl->mb_y, ER_MB_END);
2656
                if (sl->mb_x >= lf_x_start)
2657
                    loop_filter(h, sl, lf_x_start, sl->mb_x + 1);
2658
                goto finish;
2659
            }
2660
7696763
            if (sl->cabac.bytestream > sl->cabac.bytestream_end + 2 )
2661
1
                av_log(h->avctx, AV_LOG_DEBUG, "bytestream overread %"PTRDIFF_SPECIFIER"\n", sl->cabac.bytestream_end - sl->cabac.bytestream);
2662

7696763
            if (ret < 0 || sl->cabac.bytestream > sl->cabac.bytestream_end + 4) {
2663
2
                av_log(h->avctx, AV_LOG_ERROR,
2664
                       "error while decoding MB %d %d, bytestream %"PTRDIFF_SPECIFIER"\n",
2665
                       sl->mb_x, sl->mb_y,
2666
2
                       sl->cabac.bytestream_end - sl->cabac.bytestream);
2667
2
                er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y, sl->mb_x,
2668
                             sl->mb_y, ER_MB_ERROR);
2669
2
                return AVERROR_INVALIDDATA;
2670
            }
2671
2672
7696761
            if (++sl->mb_x >= h->mb_width) {
2673
201954
                loop_filter(h, sl, lf_x_start, sl->mb_x);
2674
201954
                sl->mb_x = lf_x_start = 0;
2675
201954
                decode_finish_row(h, sl);
2676
201954
                ++sl->mb_y;
2677

201954
                if (FIELD_OR_MBAFF_PICTURE(h)) {
2678
70062
                    ++sl->mb_y;
2679

70062
                    if (FRAME_MBAFF(h) && sl->mb_y < h->mb_height)
2680
17906
                        predict_field_decoding_flag(h, sl);
2681
                }
2682
            }
2683
2684

7696761
            if (eos || sl->mb_y >= h->mb_height) {
2685
                ff_tlog(h->avctx, "slice end %d %d\n",
2686
                        get_bits_count(&sl->gb), sl->gb.size_in_bits);
2687
18084
                er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y, sl->mb_x - 1,
2688
                             sl->mb_y, ER_MB_END);
2689
18084
                if (sl->mb_x > lf_x_start)
2690
1382
                    loop_filter(h, sl, lf_x_start, sl->mb_x);
2691
18084
                goto finish;
2692
            }
2693
        }
2694
    } else {
2695
4075824
        for (;;) {
2696
            int ret;
2697
2698
4091751
            if (sl->mb_x + sl->mb_y * h->mb_width >= sl->next_slice_idx) {
2699
                av_log(h->avctx, AV_LOG_ERROR, "Slice overlaps with next at %d\n",
2700
                       sl->next_slice_idx);
2701
                er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y, sl->mb_x,
2702
                             sl->mb_y, ER_MB_ERROR);
2703
                return AVERROR_INVALIDDATA;
2704
            }
2705
2706
4091751
            ret = ff_h264_decode_mb_cavlc(h, sl);
2707
2708
4091751
            if (ret >= 0)
2709
4091737
                ff_h264_hl_decode_mb(h, sl);
2710
2711
            // FIXME optimal? or let mb_decode decode 16x32 ?
2712

4091751
            if (ret >= 0 && FRAME_MBAFF(h)) {
2713
254472
                sl->mb_y++;
2714
254472
                ret = ff_h264_decode_mb_cavlc(h, sl);
2715
2716
254472
                if (ret >= 0)
2717
254472
                    ff_h264_hl_decode_mb(h, sl);
2718
254472
                sl->mb_y--;
2719
            }
2720
2721
4091751
            if (ret < 0) {
2722
14
                av_log(h->avctx, AV_LOG_ERROR,
2723
                       "error while decoding MB %d %d\n", sl->mb_x, sl->mb_y);
2724
14
                er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y, sl->mb_x,
2725
                             sl->mb_y, ER_MB_ERROR);
2726
14
                return ret;
2727
            }
2728
2729
4091737
            if (++sl->mb_x >= h->mb_width) {
2730
152560
                loop_filter(h, sl, lf_x_start, sl->mb_x);
2731
152560
                sl->mb_x = lf_x_start = 0;
2732
152560
                decode_finish_row(h, sl);
2733
152560
                ++sl->mb_y;
2734

152560
                if (FIELD_OR_MBAFF_PICTURE(h)) {
2735
32143
                    ++sl->mb_y;
2736

32143
                    if (FRAME_MBAFF(h) && sl->mb_y < h->mb_height)
2737
4978
                        predict_field_decoding_flag(h, sl);
2738
                }
2739
152560
                if (sl->mb_y >= h->mb_height) {
2740
                    ff_tlog(h->avctx, "slice end %d %d\n",
2741
                            get_bits_count(&sl->gb), sl->gb.size_in_bits);
2742
2743
12335
                    if (   get_bits_left(&sl->gb) == 0
2744
                        || get_bits_left(&sl->gb) > 0 && !(h->avctx->err_recognition & AV_EF_AGGRESSIVE)) {
2745
12335
                        er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y,
2746
12335
                                     sl->mb_x - 1, sl->mb_y, ER_MB_END);
2747
2748
12335
                        goto finish;
2749
                    } else {
2750
                        er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y,
2751
                                     sl->mb_x, sl->mb_y, ER_MB_END);
2752
2753
                        return AVERROR_INVALIDDATA;
2754
                    }
2755
                }
2756
            }
2757
2758

4079402
            if (get_bits_left(&sl->gb) <= 0 && sl->mb_skip_run <= 0) {
2759
                ff_tlog(h->avctx, "slice end %d %d\n",
2760
                        get_bits_count(&sl->gb), sl->gb.size_in_bits);
2761
2762
3578
                if (get_bits_left(&sl->gb) == 0) {
2763
3577
                    er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y,
2764
3577
                                 sl->mb_x - 1, sl->mb_y, ER_MB_END);
2765
3577
                    if (sl->mb_x > lf_x_start)
2766
2713
                        loop_filter(h, sl, lf_x_start, sl->mb_x);
2767
2768
3577
                    goto finish;
2769
                } else {
2770
1
                    er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y, sl->mb_x,
2771
                                 sl->mb_y, ER_MB_ERROR);
2772
2773
1
                    return AVERROR_INVALIDDATA;
2774
                }
2775
            }
2776
        }
2777
    }
2778
2779
33996
finish:
2780
33996
    sl->deblocking_filter = orig_deblock;
2781
33996
    return 0;
2782
}
2783
2784
/**
2785
 * Call decode_slice() for each context.
2786
 *
2787
 * @param h h264 master context
2788
 */
2789
59960
int ff_h264_execute_decode_slices(H264Context *h)
2790
{
2791
59960
    AVCodecContext *const avctx = h->avctx;
2792
    H264SliceContext *sl;
2793
59960
    int context_count = h->nb_slice_ctx_queued;
2794
59960
    int ret = 0;
2795
    int i, j;
2796
2797
59960
    h->slice_ctx[0].next_slice_idx = INT_MAX;
2798
2799

59960
    if (h->avctx->hwaccel || context_count < 1)
2800
26397
        return 0;
2801
2802

33563
    av_assert0(context_count && h->slice_ctx[context_count - 1].mb_y < h->mb_height);
2803
2804
33563
    if (context_count == 1) {
2805
2806
33113
        h->slice_ctx[0].next_slice_idx = h->mb_width * h->mb_height;
2807
33113
        h->postpone_filter = 0;
2808
2809
33113
        ret = decode_slice(avctx, &h->slice_ctx[0]);
2810
33113
        h->mb_y = h->slice_ctx[0].mb_y;
2811
33113
        if (ret < 0)
2812
17
            goto finish;
2813
    } else {
2814
450
        av_assert0(context_count > 0);
2815
1350
        for (i = 0; i < context_count; i++) {
2816
900
            int next_slice_idx = h->mb_width * h->mb_height;
2817
            int slice_idx;
2818
2819
900
            sl                 = &h->slice_ctx[i];
2820
            if (CONFIG_ERROR_RESILIENCE) {
2821
900
                sl->er.error_count = 0;
2822
            }
2823
2824
            /* make sure none of those slices overlap */
2825
900
            slice_idx = sl->mb_y * h->mb_width + sl->mb_x;
2826
2700
            for (j = 0; j < context_count; j++) {
2827
1800
                H264SliceContext *sl2 = &h->slice_ctx[j];
2828
1800
                int        slice_idx2 = sl2->mb_y * h->mb_width + sl2->mb_x;
2829
2830

1800
                if (i == j || slice_idx2 < slice_idx)
2831
1350
                    continue;
2832
450
                next_slice_idx = FFMIN(next_slice_idx, slice_idx2);
2833
            }
2834
900
            sl->next_slice_idx = next_slice_idx;
2835
        }
2836
2837
450
        avctx->execute(avctx, decode_slice, h->slice_ctx,
2838
                       NULL, context_count, sizeof(h->slice_ctx[0]));
2839
2840
        /* pull back stuff from slices to master context */
2841
450
        sl                   = &h->slice_ctx[context_count - 1];
2842
450
        h->mb_y              = sl->mb_y;
2843
        if (CONFIG_ERROR_RESILIENCE) {
2844
900
            for (i = 1; i < context_count; i++)
2845
450
                h->slice_ctx[0].er.error_count += h->slice_ctx[i].er.error_count;
2846
        }
2847
2848
450
        if (h->postpone_filter) {
2849
            h->postpone_filter = 0;
2850
2851
            for (i = 0; i < context_count; i++) {
2852
                int y_end, x_end;
2853
2854
                sl = &h->slice_ctx[i];
2855
                y_end = FFMIN(sl->mb_y + 1, h->mb_height);
2856
                x_end = (sl->mb_y >= h->mb_height) ? h->mb_width : sl->mb_x;
2857
2858
                for (j = sl->resync_mb_y; j < y_end; j += 1 + FIELD_OR_MBAFF_PICTURE(h)) {
2859
                    sl->mb_y = j;
2860
                    loop_filter(h, sl, j > sl->resync_mb_y ? 0 : sl->resync_mb_x,
2861
                                j == y_end - 1 ? x_end : h->mb_width);
2862
                }
2863
            }
2864
        }
2865
    }
2866
2867
450
finish:
2868
33563
    h->nb_slice_ctx_queued = 0;
2869
33563
    return ret;
2870
}