GCC Code Coverage Report
Directory: ../../../ffmpeg/ Exec Total Coverage
File: src/libavcodec/h264_slice.c Lines: 1364 1703 80.1 %
Date: 2020-04-04 00:26:16 Branches: 909 1283 70.8 %

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 "internal.h"
33
#include "cabac.h"
34
#include "cabac_functions.h"
35
#include "error_resilience.h"
36
#include "avcodec.h"
37
#include "h264.h"
38
#include "h264dec.h"
39
#include "h264data.h"
40
#include "h264chroma.h"
41
#include "h264_mvpred.h"
42
#include "h264_ps.h"
43
#include "golomb.h"
44
#include "mathops.h"
45
#include "mpegutils.h"
46
#include "mpegvideo.h"
47
#include "rectangle.h"
48
#include "thread.h"
49
50
static const uint8_t field_scan[16+1] = {
51
    0 + 0 * 4, 0 + 1 * 4, 1 + 0 * 4, 0 + 2 * 4,
52
    0 + 3 * 4, 1 + 1 * 4, 1 + 2 * 4, 1 + 3 * 4,
53
    2 + 0 * 4, 2 + 1 * 4, 2 + 2 * 4, 2 + 3 * 4,
54
    3 + 0 * 4, 3 + 1 * 4, 3 + 2 * 4, 3 + 3 * 4,
55
};
56
57
static const uint8_t field_scan8x8[64+1] = {
58
    0 + 0 * 8, 0 + 1 * 8, 0 + 2 * 8, 1 + 0 * 8,
59
    1 + 1 * 8, 0 + 3 * 8, 0 + 4 * 8, 1 + 2 * 8,
60
    2 + 0 * 8, 1 + 3 * 8, 0 + 5 * 8, 0 + 6 * 8,
61
    0 + 7 * 8, 1 + 4 * 8, 2 + 1 * 8, 3 + 0 * 8,
62
    2 + 2 * 8, 1 + 5 * 8, 1 + 6 * 8, 1 + 7 * 8,
63
    2 + 3 * 8, 3 + 1 * 8, 4 + 0 * 8, 3 + 2 * 8,
64
    2 + 4 * 8, 2 + 5 * 8, 2 + 6 * 8, 2 + 7 * 8,
65
    3 + 3 * 8, 4 + 1 * 8, 5 + 0 * 8, 4 + 2 * 8,
66
    3 + 4 * 8, 3 + 5 * 8, 3 + 6 * 8, 3 + 7 * 8,
67
    4 + 3 * 8, 5 + 1 * 8, 6 + 0 * 8, 5 + 2 * 8,
68
    4 + 4 * 8, 4 + 5 * 8, 4 + 6 * 8, 4 + 7 * 8,
69
    5 + 3 * 8, 6 + 1 * 8, 6 + 2 * 8, 5 + 4 * 8,
70
    5 + 5 * 8, 5 + 6 * 8, 5 + 7 * 8, 6 + 3 * 8,
71
    7 + 0 * 8, 7 + 1 * 8, 6 + 4 * 8, 6 + 5 * 8,
72
    6 + 6 * 8, 6 + 7 * 8, 7 + 2 * 8, 7 + 3 * 8,
73
    7 + 4 * 8, 7 + 5 * 8, 7 + 6 * 8, 7 + 7 * 8,
74
};
75
76
static const uint8_t field_scan8x8_cavlc[64+1] = {
77
    0 + 0 * 8, 1 + 1 * 8, 2 + 0 * 8, 0 + 7 * 8,
78
    2 + 2 * 8, 2 + 3 * 8, 2 + 4 * 8, 3 + 3 * 8,
79
    3 + 4 * 8, 4 + 3 * 8, 4 + 4 * 8, 5 + 3 * 8,
80
    5 + 5 * 8, 7 + 0 * 8, 6 + 6 * 8, 7 + 4 * 8,
81
    0 + 1 * 8, 0 + 3 * 8, 1 + 3 * 8, 1 + 4 * 8,
82
    1 + 5 * 8, 3 + 1 * 8, 2 + 5 * 8, 4 + 1 * 8,
83
    3 + 5 * 8, 5 + 1 * 8, 4 + 5 * 8, 6 + 1 * 8,
84
    5 + 6 * 8, 7 + 1 * 8, 6 + 7 * 8, 7 + 5 * 8,
85
    0 + 2 * 8, 0 + 4 * 8, 0 + 5 * 8, 2 + 1 * 8,
86
    1 + 6 * 8, 4 + 0 * 8, 2 + 6 * 8, 5 + 0 * 8,
87
    3 + 6 * 8, 6 + 0 * 8, 4 + 6 * 8, 6 + 2 * 8,
88
    5 + 7 * 8, 6 + 4 * 8, 7 + 2 * 8, 7 + 6 * 8,
89
    1 + 0 * 8, 1 + 2 * 8, 0 + 6 * 8, 3 + 0 * 8,
90
    1 + 7 * 8, 3 + 2 * 8, 2 + 7 * 8, 4 + 2 * 8,
91
    3 + 7 * 8, 5 + 2 * 8, 4 + 7 * 8, 5 + 4 * 8,
92
    6 + 3 * 8, 6 + 5 * 8, 7 + 3 * 8, 7 + 7 * 8,
93
};
94
95
// zigzag_scan8x8_cavlc[i] = zigzag_scan8x8[(i/4) + 16*(i%4)]
96
static const uint8_t zigzag_scan8x8_cavlc[64+1] = {
97
    0 + 0 * 8, 1 + 1 * 8, 1 + 2 * 8, 2 + 2 * 8,
98
    4 + 1 * 8, 0 + 5 * 8, 3 + 3 * 8, 7 + 0 * 8,
99
    3 + 4 * 8, 1 + 7 * 8, 5 + 3 * 8, 6 + 3 * 8,
100
    2 + 7 * 8, 6 + 4 * 8, 5 + 6 * 8, 7 + 5 * 8,
101
    1 + 0 * 8, 2 + 0 * 8, 0 + 3 * 8, 3 + 1 * 8,
102
    3 + 2 * 8, 0 + 6 * 8, 4 + 2 * 8, 6 + 1 * 8,
103
    2 + 5 * 8, 2 + 6 * 8, 6 + 2 * 8, 5 + 4 * 8,
104
    3 + 7 * 8, 7 + 3 * 8, 4 + 7 * 8, 7 + 6 * 8,
105
    0 + 1 * 8, 3 + 0 * 8, 0 + 4 * 8, 4 + 0 * 8,
106
    2 + 3 * 8, 1 + 5 * 8, 5 + 1 * 8, 5 + 2 * 8,
107
    1 + 6 * 8, 3 + 5 * 8, 7 + 1 * 8, 4 + 5 * 8,
108
    4 + 6 * 8, 7 + 4 * 8, 5 + 7 * 8, 6 + 7 * 8,
109
    0 + 2 * 8, 2 + 1 * 8, 1 + 3 * 8, 5 + 0 * 8,
110
    1 + 4 * 8, 2 + 4 * 8, 6 + 0 * 8, 4 + 3 * 8,
111
    0 + 7 * 8, 4 + 4 * 8, 7 + 2 * 8, 3 + 6 * 8,
112
    5 + 5 * 8, 6 + 5 * 8, 6 + 6 * 8, 7 + 7 * 8,
113
};
114
115
26578
static void release_unused_pictures(H264Context *h, int remove_current)
116
{
117
    int i;
118
119
    /* release non reference frames */
120
983386
    for (i = 0; i < H264_MAX_PICTURE_COUNT; i++) {
121

956808
        if (h->DPB[i].f->buf[0] && !h->DPB[i].reference &&
122
2480
            (remove_current || &h->DPB[i] != h->cur_pic_ptr)) {
123
21344
            ff_h264_unref_picture(h, &h->DPB[i]);
124
        }
125
    }
126
26578
}
127
128
34011
static int alloc_scratch_buffers(H264SliceContext *sl, int linesize)
129
{
130
34011
    const H264Context *h = sl->h264;
131
34011
    int alloc_size = FFALIGN(FFABS(linesize) + 32, 32);
132
133
34011
    av_fast_malloc(&sl->bipred_scratchpad, &sl->bipred_scratchpad_allocated, 16 * 6 * alloc_size);
134
    // edge emu needs blocksize + filter length - 1
135
    // (= 21x21 for  H.264)
136
34011
    av_fast_malloc(&sl->edge_emu_buffer, &sl->edge_emu_buffer_allocated, alloc_size * 2 * 21);
137
138
34011
    av_fast_mallocz(&sl->top_borders[0], &sl->top_borders_allocated[0],
139
34011
                   h->mb_width * 16 * 3 * sizeof(uint8_t) * 2);
140
34011
    av_fast_mallocz(&sl->top_borders[1], &sl->top_borders_allocated[1],
141
34011
                   h->mb_width * 16 * 3 * sizeof(uint8_t) * 2);
142
143

34011
    if (!sl->bipred_scratchpad || !sl->edge_emu_buffer ||
144

34011
        !sl->top_borders[0]    || !sl->top_borders[1]) {
145
        av_freep(&sl->bipred_scratchpad);
146
        av_freep(&sl->edge_emu_buffer);
147
        av_freep(&sl->top_borders[0]);
148
        av_freep(&sl->top_borders[1]);
149
150
        sl->bipred_scratchpad_allocated = 0;
151
        sl->edge_emu_buffer_allocated   = 0;
152
        sl->top_borders_allocated[0]    = 0;
153
        sl->top_borders_allocated[1]    = 0;
154
        return AVERROR(ENOMEM);
155
    }
156
157
34011
    return 0;
158
}
159
160
533
static int init_table_pools(H264Context *h)
161
{
162
533
    const int big_mb_num    = h->mb_stride * (h->mb_height + 1) + 1;
163
533
    const int mb_array_size = h->mb_stride * h->mb_height;
164
533
    const int b4_stride     = h->mb_width * 4 + 1;
165
533
    const int b4_array_size = b4_stride * h->mb_height * 4;
166
167
533
    h->qscale_table_pool = av_buffer_pool_init(big_mb_num + h->mb_stride,
168
                                               av_buffer_allocz);
169
533
    h->mb_type_pool      = av_buffer_pool_init((big_mb_num + h->mb_stride) *
170
                                               sizeof(uint32_t), av_buffer_allocz);
171
533
    h->motion_val_pool   = av_buffer_pool_init(2 * (b4_array_size + 4) *
172
                                               sizeof(int16_t), av_buffer_allocz);
173
533
    h->ref_index_pool    = av_buffer_pool_init(4 * mb_array_size, av_buffer_allocz);
174
175

533
    if (!h->qscale_table_pool || !h->mb_type_pool || !h->motion_val_pool ||
176
533
        !h->ref_index_pool) {
177
        av_buffer_pool_uninit(&h->qscale_table_pool);
178
        av_buffer_pool_uninit(&h->mb_type_pool);
179
        av_buffer_pool_uninit(&h->motion_val_pool);
180
        av_buffer_pool_uninit(&h->ref_index_pool);
181
        return AVERROR(ENOMEM);
182
    }
183
184
533
    return 0;
185
}
186
187
23345
static int alloc_picture(H264Context *h, H264Picture *pic)
188
{
189
23345
    int i, ret = 0;
190
191
23345
    av_assert0(!pic->f->data[0]);
192
193
23345
    pic->tf.f = pic->f;
194
23345
    ret = ff_thread_get_buffer(h->avctx, &pic->tf, pic->reference ?
195
                                                   AV_GET_BUFFER_FLAG_REF : 0);
196
23345
    if (ret < 0)
197
        goto fail;
198
199
23345
    if (h->avctx->hwaccel) {
200
        const AVHWAccel *hwaccel = h->avctx->hwaccel;
201
        av_assert0(!pic->hwaccel_picture_private);
202
        if (hwaccel->frame_priv_data_size) {
203
            pic->hwaccel_priv_buf = av_buffer_allocz(hwaccel->frame_priv_data_size);
204
            if (!pic->hwaccel_priv_buf)
205
                return AVERROR(ENOMEM);
206
            pic->hwaccel_picture_private = pic->hwaccel_priv_buf->data;
207
        }
208
    }
209
    if (CONFIG_GRAY && !h->avctx->hwaccel && h->flags & AV_CODEC_FLAG_GRAY && pic->f->data[2]) {
210
        int h_chroma_shift, v_chroma_shift;
211
        av_pix_fmt_get_chroma_sub_sample(pic->f->format,
212
                                         &h_chroma_shift, &v_chroma_shift);
213
214
        for(i=0; i<AV_CEIL_RSHIFT(pic->f->height, v_chroma_shift); i++) {
215
            memset(pic->f->data[1] + pic->f->linesize[1]*i,
216
                   0x80, AV_CEIL_RSHIFT(pic->f->width, h_chroma_shift));
217
            memset(pic->f->data[2] + pic->f->linesize[2]*i,
218
                   0x80, AV_CEIL_RSHIFT(pic->f->width, h_chroma_shift));
219
        }
220
    }
221
222
23345
    if (!h->qscale_table_pool) {
223
533
        ret = init_table_pools(h);
224
533
        if (ret < 0)
225
            goto fail;
226
    }
227
228
23345
    pic->qscale_table_buf = av_buffer_pool_get(h->qscale_table_pool);
229
23345
    pic->mb_type_buf      = av_buffer_pool_get(h->mb_type_pool);
230

23345
    if (!pic->qscale_table_buf || !pic->mb_type_buf)
231
        goto fail;
232
233
23345
    pic->mb_type      = (uint32_t*)pic->mb_type_buf->data + 2 * h->mb_stride + 1;
234
23345
    pic->qscale_table = pic->qscale_table_buf->data + 2 * h->mb_stride + 1;
235
236
70035
    for (i = 0; i < 2; i++) {
237
46690
        pic->motion_val_buf[i] = av_buffer_pool_get(h->motion_val_pool);
238
46690
        pic->ref_index_buf[i]  = av_buffer_pool_get(h->ref_index_pool);
239

46690
        if (!pic->motion_val_buf[i] || !pic->ref_index_buf[i])
240
            goto fail;
241
242
46690
        pic->motion_val[i] = (int16_t (*)[2])pic->motion_val_buf[i]->data + 4;
243
46690
        pic->ref_index[i]  = pic->ref_index_buf[i]->data;
244
    }
245
246
23345
    return 0;
247
fail:
248
    ff_h264_unref_picture(h, pic);
249
    return (ret < 0) ? ret : AVERROR(ENOMEM);
250
}
251
252
23345
static int find_unused_picture(H264Context *h)
253
{
254
    int i;
255
256
82040
    for (i = 0; i < H264_MAX_PICTURE_COUNT; i++) {
257
82040
        if (!h->DPB[i].f->buf[0])
258
23345
            return i;
259
    }
260
    return AVERROR_INVALIDDATA;
261
}
262
263
264
#define IN_RANGE(a, b, size) (((void*)(a) >= (void*)(b)) && ((void*)(a) < (void*)((b) + (size))))
265
266
#define REBASE_PICTURE(pic, new_ctx, old_ctx)             \
267
    (((pic) && (pic) >= (old_ctx)->DPB &&                       \
268
      (pic) < (old_ctx)->DPB + H264_MAX_PICTURE_COUNT) ?          \
269
     &(new_ctx)->DPB[(pic) - (old_ctx)->DPB] : NULL)
270
271
129
static void copy_picture_range(H264Picture **to, H264Picture **from, int count,
272
                               H264Context *new_base,
273
                               H264Context *old_base)
274
{
275
    int i;
276
277
3655
    for (i = 0; i < count; i++) {
278
        av_assert1(!from[i] ||
279
                   IN_RANGE(from[i], old_base, 1) ||
280
                   IN_RANGE(from[i], old_base->DPB, H264_MAX_PICTURE_COUNT));
281

3526
        to[i] = REBASE_PICTURE(from[i], new_base, old_base);
282
    }
283
129
}
284
285
static int h264_slice_header_init(H264Context *h);
286
287
43
int ff_h264_update_thread_context(AVCodecContext *dst,
288
                                  const AVCodecContext *src)
289
{
290
43
    H264Context *h = dst->priv_data, *h1 = src->priv_data;
291
43
    int inited = h->context_initialized, err = 0;
292
43
    int need_reinit = 0;
293
    int i, ret;
294
295
43
    if (dst == src)
296
        return 0;
297
298
    // We can't fail if SPS isn't set at it breaks current skip_frame code
299
    //if (!h1->ps.sps)
300
    //    return AVERROR_INVALIDDATA;
301
302
43
    if (inited &&
303
35
        (h->width                 != h1->width                 ||
304
35
         h->height                != h1->height                ||
305
35
         h->mb_width              != h1->mb_width              ||
306
35
         h->mb_height             != h1->mb_height             ||
307
35
         !h->ps.sps                                            ||
308
35
         h->ps.sps->bit_depth_luma    != h1->ps.sps->bit_depth_luma    ||
309
35
         h->ps.sps->chroma_format_idc != h1->ps.sps->chroma_format_idc ||
310
35
         h->ps.sps->colorspace        != h1->ps.sps->colorspace)) {
311
        need_reinit = 1;
312
    }
313
314
    /* copy block_offset since frame_start may not be called */
315
43
    memcpy(h->block_offset, h1->block_offset, sizeof(h->block_offset));
316
317
    // SPS/PPS
318
1419
    for (i = 0; i < FF_ARRAY_ELEMS(h->ps.sps_list); i++) {
319
1376
        av_buffer_unref(&h->ps.sps_list[i]);
320
1376
        if (h1->ps.sps_list[i]) {
321
43
            h->ps.sps_list[i] = av_buffer_ref(h1->ps.sps_list[i]);
322
43
            if (!h->ps.sps_list[i])
323
                return AVERROR(ENOMEM);
324
        }
325
    }
326
11051
    for (i = 0; i < FF_ARRAY_ELEMS(h->ps.pps_list); i++) {
327
11008
        av_buffer_unref(&h->ps.pps_list[i]);
328
11008
        if (h1->ps.pps_list[i]) {
329
43
            h->ps.pps_list[i] = av_buffer_ref(h1->ps.pps_list[i]);
330
43
            if (!h->ps.pps_list[i])
331
                return AVERROR(ENOMEM);
332
        }
333
    }
334
335
43
    av_buffer_unref(&h->ps.pps_ref);
336
43
    av_buffer_unref(&h->ps.sps_ref);
337
43
    h->ps.pps = NULL;
338
43
    h->ps.sps = NULL;
339
43
    if (h1->ps.pps_ref) {
340
43
        h->ps.pps_ref = av_buffer_ref(h1->ps.pps_ref);
341
43
        if (!h->ps.pps_ref)
342
            return AVERROR(ENOMEM);
343
43
        h->ps.pps = (const PPS*)h->ps.pps_ref->data;
344
    }
345
43
    if (h1->ps.sps_ref) {
346
43
        h->ps.sps_ref = av_buffer_ref(h1->ps.sps_ref);
347
43
        if (!h->ps.sps_ref)
348
            return AVERROR(ENOMEM);
349
43
        h->ps.sps = (const SPS*)h->ps.sps_ref->data;
350
    }
351
352

43
    if (need_reinit || !inited) {
353
8
        h->width     = h1->width;
354
8
        h->height    = h1->height;
355
8
        h->mb_height = h1->mb_height;
356
8
        h->mb_width  = h1->mb_width;
357
8
        h->mb_num    = h1->mb_num;
358
8
        h->mb_stride = h1->mb_stride;
359
8
        h->b_stride  = h1->b_stride;
360
8
        h->x264_build = h1->x264_build;
361
362

8
        if (h->context_initialized || h1->context_initialized) {
363
8
            if ((err = h264_slice_header_init(h)) < 0) {
364
                av_log(h->avctx, AV_LOG_ERROR, "h264_slice_header_init() failed");
365
                return err;
366
            }
367
        }
368
369
        /* copy block_offset since frame_start may not be called */
370
8
        memcpy(h->block_offset, h1->block_offset, sizeof(h->block_offset));
371
    }
372
373
43
    h->avctx->coded_height  = h1->avctx->coded_height;
374
43
    h->avctx->coded_width   = h1->avctx->coded_width;
375
43
    h->avctx->width         = h1->avctx->width;
376
43
    h->avctx->height        = h1->avctx->height;
377
43
    h->width_from_caller    = h1->width_from_caller;
378
43
    h->height_from_caller   = h1->height_from_caller;
379
43
    h->coded_picture_number = h1->coded_picture_number;
380
43
    h->first_field          = h1->first_field;
381
43
    h->picture_structure    = h1->picture_structure;
382
43
    h->mb_aff_frame         = h1->mb_aff_frame;
383
43
    h->droppable            = h1->droppable;
384
385
1591
    for (i = 0; i < H264_MAX_PICTURE_COUNT; i++) {
386
1548
        ff_h264_unref_picture(h, &h->DPB[i]);
387

1730
        if (h1->DPB[i].f->buf[0] &&
388
182
            (ret = ff_h264_ref_picture(h, &h->DPB[i], &h1->DPB[i])) < 0)
389
            return ret;
390
    }
391
392

43
    h->cur_pic_ptr = REBASE_PICTURE(h1->cur_pic_ptr, h, h1);
393
43
    ff_h264_unref_picture(h, &h->cur_pic);
394
43
    if (h1->cur_pic.f->buf[0]) {
395
43
        ret = ff_h264_ref_picture(h, &h->cur_pic, &h1->cur_pic);
396
43
        if (ret < 0)
397
            return ret;
398
    }
399
400
43
    h->enable_er       = h1->enable_er;
401
43
    h->workaround_bugs = h1->workaround_bugs;
402
43
    h->droppable       = h1->droppable;
403
404
    // extradata/NAL handling
405
43
    h->is_avc = h1->is_avc;
406
43
    h->nal_length_size = h1->nal_length_size;
407
408
43
    memcpy(&h->poc,        &h1->poc,        sizeof(h->poc));
409
410
43
    memcpy(h->short_ref,   h1->short_ref,   sizeof(h->short_ref));
411
43
    memcpy(h->long_ref,    h1->long_ref,    sizeof(h->long_ref));
412
43
    memcpy(h->delayed_pic, h1->delayed_pic, sizeof(h->delayed_pic));
413
43
    memcpy(h->last_pocs,   h1->last_pocs,   sizeof(h->last_pocs));
414
415
43
    h->next_output_pic   = h1->next_output_pic;
416
43
    h->next_outputed_poc = h1->next_outputed_poc;
417
418
43
    memcpy(h->mmco, h1->mmco, sizeof(h->mmco));
419
43
    h->nb_mmco         = h1->nb_mmco;
420
43
    h->mmco_reset      = h1->mmco_reset;
421
43
    h->explicit_ref_marking = h1->explicit_ref_marking;
422
43
    h->long_ref_count  = h1->long_ref_count;
423
43
    h->short_ref_count = h1->short_ref_count;
424
425
43
    copy_picture_range(h->short_ref, h1->short_ref, 32, h, h1);
426
43
    copy_picture_range(h->long_ref, h1->long_ref, 32, h, h1);
427
43
    copy_picture_range(h->delayed_pic, h1->delayed_pic,
428
                       MAX_DELAYED_PIC_COUNT + 2, h, h1);
429
430
43
    h->frame_recovered       = h1->frame_recovered;
431
432
43
    av_buffer_unref(&h->sei.a53_caption.buf_ref);
433
43
    if (h1->sei.a53_caption.buf_ref) {
434
        h->sei.a53_caption.buf_ref = av_buffer_ref(h1->sei.a53_caption.buf_ref);
435
        if (!h->sei.a53_caption.buf_ref)
436
            return AVERROR(ENOMEM);
437
    }
438
439
43
    if (!h->cur_pic_ptr)
440
11
        return 0;
441
442
32
    if (!h->droppable) {
443
19
        err = ff_h264_execute_ref_pic_marking(h);
444
19
        h->poc.prev_poc_msb = h->poc.poc_msb;
445
19
        h->poc.prev_poc_lsb = h->poc.poc_lsb;
446
    }
447
32
    h->poc.prev_frame_num_offset = h->poc.frame_num_offset;
448
32
    h->poc.prev_frame_num        = h->poc.frame_num;
449
450
32
    h->recovery_frame        = h1->recovery_frame;
451
452
32
    return err;
453
}
454
455
23345
static int h264_frame_start(H264Context *h)
456
{
457
    H264Picture *pic;
458
    int i, ret;
459
23345
    const int pixel_shift = h->pixel_shift;
460
461
23345
    if (!ff_thread_can_start_frame(h->avctx)) {
462
        av_log(h->avctx, AV_LOG_ERROR, "Attempt to start a frame outside SETUP state\n");
463
        return -1;
464
    }
465
466
23345
    release_unused_pictures(h, 1);
467
23345
    h->cur_pic_ptr = NULL;
468
469
23345
    i = find_unused_picture(h);
470
23345
    if (i < 0) {
471
        av_log(h->avctx, AV_LOG_ERROR, "no frame buffer available\n");
472
        return i;
473
    }
474
23345
    pic = &h->DPB[i];
475
476
23345
    pic->reference              = h->droppable ? 0 : h->picture_structure;
477
23345
    pic->f->coded_picture_number = h->coded_picture_number++;
478
23345
    pic->field_picture          = h->picture_structure != PICT_FRAME;
479
23345
    pic->frame_num               = h->poc.frame_num;
480
    /*
481
     * Zero key_frame here; IDR markings per slice in frame or fields are ORed
482
     * in later.
483
     * See decode_nal_units().
484
     */
485
23345
    pic->f->key_frame = 0;
486
23345
    pic->mmco_reset  = 0;
487
23345
    pic->recovered   = 0;
488
23345
    pic->invalid_gap = 0;
489
23345
    pic->sei_recovery_frame_cnt = h->sei.recovery_point.recovery_frame_cnt;
490
491
23345
    pic->f->pict_type = h->slice_ctx[0].slice_type;
492
493
23345
    pic->f->crop_left   = h->crop_left;
494
23345
    pic->f->crop_right  = h->crop_right;
495
23345
    pic->f->crop_top    = h->crop_top;
496
23345
    pic->f->crop_bottom = h->crop_bottom;
497
498
23345
    if ((ret = alloc_picture(h, pic)) < 0)
499
        return ret;
500
501
23345
    h->cur_pic_ptr = pic;
502
23345
    ff_h264_unref_picture(h, &h->cur_pic);
503
    if (CONFIG_ERROR_RESILIENCE) {
504
23345
        ff_h264_set_erpic(&h->slice_ctx[0].er.cur_pic, NULL);
505
    }
506
507
23345
    if ((ret = ff_h264_ref_picture(h, &h->cur_pic, h->cur_pic_ptr)) < 0)
508
        return ret;
509
510
46990
    for (i = 0; i < h->nb_slice_ctx; i++) {
511
23645
        h->slice_ctx[i].linesize   = h->cur_pic_ptr->f->linesize[0];
512
23645
        h->slice_ctx[i].uvlinesize = h->cur_pic_ptr->f->linesize[1];
513
    }
514
515
23345
    if (CONFIG_ERROR_RESILIENCE && h->enable_er) {
516
23045
        ff_er_frame_start(&h->slice_ctx[0].er);
517
23045
        ff_h264_set_erpic(&h->slice_ctx[0].er.last_pic, NULL);
518
23045
        ff_h264_set_erpic(&h->slice_ctx[0].er.next_pic, NULL);
519
    }
520
521
396865
    for (i = 0; i < 16; i++) {
522
373520
        h->block_offset[i]           = (4 * ((scan8[i] - scan8[0]) & 7) << pixel_shift) + 4 * pic->f->linesize[0] * ((scan8[i] - scan8[0]) >> 3);
523
373520
        h->block_offset[48 + i]      = (4 * ((scan8[i] - scan8[0]) & 7) << pixel_shift) + 8 * pic->f->linesize[0] * ((scan8[i] - scan8[0]) >> 3);
524
    }
525
396865
    for (i = 0; i < 16; i++) {
526
373520
        h->block_offset[16 + i]      =
527
373520
        h->block_offset[32 + i]      = (4 * ((scan8[i] - scan8[0]) & 7) << pixel_shift) + 4 * pic->f->linesize[1] * ((scan8[i] - scan8[0]) >> 3);
528
373520
        h->block_offset[48 + 16 + i] =
529
373520
        h->block_offset[48 + 32 + i] = (4 * ((scan8[i] - scan8[0]) & 7) << pixel_shift) + 8 * pic->f->linesize[1] * ((scan8[i] - scan8[0]) >> 3);
530
    }
531
532
    /* We mark the current picture as non-reference after allocating it, so
533
     * that if we break out due to an error it can be released automatically
534
     * in the next ff_mpv_frame_start().
535
     */
536
23345
    h->cur_pic_ptr->reference = 0;
537
538
23345
    h->cur_pic_ptr->field_poc[0] = h->cur_pic_ptr->field_poc[1] = INT_MAX;
539
540
23345
    h->next_output_pic = NULL;
541
542
23345
    h->postpone_filter = 0;
543
544

23345
    h->mb_aff_frame = h->ps.sps->mb_aff && (h->picture_structure == PICT_FRAME);
545
546
23345
    if (h->sei.unregistered.x264_build >= 0)
547
1796
        h->x264_build = h->sei.unregistered.x264_build;
548
549
    assert(h->cur_pic_ptr->long_ref == 0);
550
551
23345
    return 0;
552
}
553
554
10755987
static av_always_inline void backup_mb_border(const H264Context *h, H264SliceContext *sl,
555
                                              uint8_t *src_y,
556
                                              uint8_t *src_cb, uint8_t *src_cr,
557
                                              int linesize, int uvlinesize,
558
                                              int simple)
559
{
560
    uint8_t *top_border;
561
10755987
    int top_idx = 1;
562
10755987
    const int pixel_shift = h->pixel_shift;
563
10755987
    int chroma444 = CHROMA444(h);
564
10755987
    int chroma422 = CHROMA422(h);
565
566
10755987
    src_y  -= linesize;
567
10755987
    src_cb -= uvlinesize;
568
10755987
    src_cr -= uvlinesize;
569
570

10755987
    if (!simple && FRAME_MBAFF(h)) {
571
1814136
        if (sl->mb_y & 1) {
572
907068
            if (!MB_MBAFF(sl)) {
573
665811
                top_border = sl->top_borders[0][sl->mb_x];
574
665811
                AV_COPY128(top_border, src_y + 15 * linesize);
575
665811
                if (pixel_shift)
576
213139
                    AV_COPY128(top_border + 16, src_y + 15 * linesize + 16);
577
                if (simple || !CONFIG_GRAY || !(h->flags & AV_CODEC_FLAG_GRAY)) {
578
665811
                    if (chroma444) {
579
                        if (pixel_shift) {
580
                            AV_COPY128(top_border + 32, src_cb + 15 * uvlinesize);
581
                            AV_COPY128(top_border + 48, src_cb + 15 * uvlinesize + 16);
582
                            AV_COPY128(top_border + 64, src_cr + 15 * uvlinesize);
583
                            AV_COPY128(top_border + 80, src_cr + 15 * uvlinesize + 16);
584
                        } else {
585
                            AV_COPY128(top_border + 16, src_cb + 15 * uvlinesize);
586
                            AV_COPY128(top_border + 32, src_cr + 15 * uvlinesize);
587
                        }
588
665811
                    } else if (chroma422) {
589
106510
                        if (pixel_shift) {
590
106510
                            AV_COPY128(top_border + 32, src_cb + 15 * uvlinesize);
591
106510
                            AV_COPY128(top_border + 48, src_cr + 15 * uvlinesize);
592
                        } else {
593
                            AV_COPY64(top_border + 16, src_cb + 15 * uvlinesize);
594
                            AV_COPY64(top_border + 24, src_cr + 15 * uvlinesize);
595
                        }
596
                    } else {
597
559301
                        if (pixel_shift) {
598
106629
                            AV_COPY128(top_border + 32, src_cb + 7 * uvlinesize);
599
106629
                            AV_COPY128(top_border + 48, src_cr + 7 * uvlinesize);
600
                        } else {
601
452672
                            AV_COPY64(top_border + 16, src_cb + 7 * uvlinesize);
602
452672
                            AV_COPY64(top_border + 24, src_cr + 7 * uvlinesize);
603
                        }
604
                    }
605
                }
606
            }
607
907068
        } else if (MB_MBAFF(sl)) {
608
241257
            top_idx = 0;
609
        } else
610
665811
            return;
611
    }
612
613
10090176
    top_border = sl->top_borders[top_idx][sl->mb_x];
614
    /* There are two lines saved, the line above the top macroblock
615
     * of a pair, and the line above the bottom macroblock. */
616
10090176
    AV_COPY128(top_border, src_y + 16 * linesize);
617
10090176
    if (pixel_shift)
618
1300901
        AV_COPY128(top_border + 16, src_y + 16 * linesize + 16);
619
620
    if (simple || !CONFIG_GRAY || !(h->flags & AV_CODEC_FLAG_GRAY)) {
621
10090176
        if (chroma444) {
622
39528
            if (pixel_shift) {
623
19800
                AV_COPY128(top_border + 32, src_cb + 16 * linesize);
624
19800
                AV_COPY128(top_border + 48, src_cb + 16 * linesize + 16);
625
19800
                AV_COPY128(top_border + 64, src_cr + 16 * linesize);
626
19800
                AV_COPY128(top_border + 80, src_cr + 16 * linesize + 16);
627
            } else {
628
19728
                AV_COPY128(top_border + 16, src_cb + 16 * linesize);
629
19728
                AV_COPY128(top_border + 32, src_cr + 16 * linesize);
630
            }
631
10050648
        } else if (chroma422) {
632
588635
            if (pixel_shift) {
633
584675
                AV_COPY128(top_border + 32, src_cb + 16 * uvlinesize);
634
584675
                AV_COPY128(top_border + 48, src_cr + 16 * uvlinesize);
635
            } else {
636
3960
                AV_COPY64(top_border + 16, src_cb + 16 * uvlinesize);
637
3960
                AV_COPY64(top_border + 24, src_cr + 16 * uvlinesize);
638
            }
639
        } else {
640
9462013
            if (pixel_shift) {
641
696426
                AV_COPY128(top_border + 32, src_cb + 8 * uvlinesize);
642
696426
                AV_COPY128(top_border + 48, src_cr + 8 * uvlinesize);
643
            } else {
644
8765587
                AV_COPY64(top_border + 16, src_cb + 8 * uvlinesize);
645
8765587
                AV_COPY64(top_border + 24, src_cr + 8 * uvlinesize);
646
            }
647
        }
648
    }
649
}
650
651
/**
652
 * Initialize implicit_weight table.
653
 * @param field  0/1 initialize the weight for interlaced MBAFF
654
 *                -1 initializes the rest
655
 */
656
3299
static void implicit_weight_table(const H264Context *h, H264SliceContext *sl, int field)
657
{
658
    int ref0, ref1, i, cur_poc, ref_start, ref_count0, ref_count1;
659
660
9897
    for (i = 0; i < 2; i++) {
661
6598
        sl->pwt.luma_weight_flag[i]   = 0;
662
6598
        sl->pwt.chroma_weight_flag[i] = 0;
663
    }
664
665
3299
    if (field < 0) {
666
1589
        if (h->picture_structure == PICT_FRAME) {
667
1589
            cur_poc = h->cur_pic_ptr->poc;
668
        } else {
669
            cur_poc = h->cur_pic_ptr->field_poc[h->picture_structure - 1];
670
        }
671

1589
        if (sl->ref_count[0] == 1 && sl->ref_count[1] == 1 && !FRAME_MBAFF(h) &&
672
97
            sl->ref_list[0][0].poc + (int64_t)sl->ref_list[1][0].poc == 2LL * cur_poc) {
673
34
            sl->pwt.use_weight        = 0;
674
34
            sl->pwt.use_weight_chroma = 0;
675
34
            return;
676
        }
677
1555
        ref_start  = 0;
678
1555
        ref_count0 = sl->ref_count[0];
679
1555
        ref_count1 = sl->ref_count[1];
680
    } else {
681
1710
        cur_poc    = h->cur_pic_ptr->field_poc[field];
682
1710
        ref_start  = 16;
683
1710
        ref_count0 = 16 + 2 * sl->ref_count[0];
684
1710
        ref_count1 = 16 + 2 * sl->ref_count[1];
685
    }
686
687
3265
    sl->pwt.use_weight               = 2;
688
3265
    sl->pwt.use_weight_chroma        = 2;
689
3265
    sl->pwt.luma_log2_weight_denom   = 5;
690
3265
    sl->pwt.chroma_log2_weight_denom = 5;
691
692
14879
    for (ref0 = ref_start; ref0 < ref_count0; ref0++) {
693
11614
        int64_t poc0 = sl->ref_list[0][ref0].poc;
694
33317
        for (ref1 = ref_start; ref1 < ref_count1; ref1++) {
695
21703
            int w = 32;
696

21703
            if (!sl->ref_list[0][ref0].parent->long_ref && !sl->ref_list[1][ref1].parent->long_ref) {
697
21703
                int poc1 = sl->ref_list[1][ref1].poc;
698
21703
                int td   = av_clip_int8(poc1 - poc0);
699
21703
                if (td) {
700
21637
                    int tb = av_clip_int8(cur_poc - poc0);
701
21637
                    int tx = (16384 + (FFABS(td) >> 1)) / td;
702
21637
                    int dist_scale_factor = (tb * tx + 32) >> 8;
703

21637
                    if (dist_scale_factor >= -64 && dist_scale_factor <= 128)
704
21633
                        w = 64 - dist_scale_factor;
705
                }
706
            }
707
21703
            if (field < 0) {
708
5823
                sl->pwt.implicit_weight[ref0][ref1][0] =
709
5823
                sl->pwt.implicit_weight[ref0][ref1][1] = w;
710
            } else {
711
15880
                sl->pwt.implicit_weight[ref0][ref1][field] = w;
712
            }
713
        }
714
    }
715
}
716
717
/**
718
 * initialize scan tables
719
 */
720
533
static void init_scan_tables(H264Context *h)
721
{
722
    int i;
723
9061
    for (i = 0; i < 16; i++) {
724
#define TRANSPOSE(x) ((x) >> 2) | (((x) << 2) & 0xF)
725
8528
        h->zigzag_scan[i] = TRANSPOSE(ff_zigzag_scan[i]);
726
8528
        h->field_scan[i]  = TRANSPOSE(field_scan[i]);
727
#undef TRANSPOSE
728
    }
729
34645
    for (i = 0; i < 64; i++) {
730
#define TRANSPOSE(x) ((x) >> 3) | (((x) & 7) << 3)
731
34112
        h->zigzag_scan8x8[i]       = TRANSPOSE(ff_zigzag_direct[i]);
732
34112
        h->zigzag_scan8x8_cavlc[i] = TRANSPOSE(zigzag_scan8x8_cavlc[i]);
733
34112
        h->field_scan8x8[i]        = TRANSPOSE(field_scan8x8[i]);
734
34112
        h->field_scan8x8_cavlc[i]  = TRANSPOSE(field_scan8x8_cavlc[i]);
735
#undef TRANSPOSE
736
    }
737
533
    if (h->ps.sps->transform_bypass) { // FIXME same ugly
738
12
        memcpy(h->zigzag_scan_q0          , ff_zigzag_scan          , sizeof(h->zigzag_scan_q0         ));
739
12
        memcpy(h->zigzag_scan8x8_q0       , ff_zigzag_direct        , sizeof(h->zigzag_scan8x8_q0      ));
740
12
        memcpy(h->zigzag_scan8x8_cavlc_q0 , zigzag_scan8x8_cavlc    , sizeof(h->zigzag_scan8x8_cavlc_q0));
741
12
        memcpy(h->field_scan_q0           , field_scan              , sizeof(h->field_scan_q0          ));
742
12
        memcpy(h->field_scan8x8_q0        , field_scan8x8           , sizeof(h->field_scan8x8_q0       ));
743
12
        memcpy(h->field_scan8x8_cavlc_q0  , field_scan8x8_cavlc     , sizeof(h->field_scan8x8_cavlc_q0 ));
744
    } else {
745
521
        memcpy(h->zigzag_scan_q0          , h->zigzag_scan          , sizeof(h->zigzag_scan_q0         ));
746
521
        memcpy(h->zigzag_scan8x8_q0       , h->zigzag_scan8x8       , sizeof(h->zigzag_scan8x8_q0      ));
747
521
        memcpy(h->zigzag_scan8x8_cavlc_q0 , h->zigzag_scan8x8_cavlc , sizeof(h->zigzag_scan8x8_cavlc_q0));
748
521
        memcpy(h->field_scan_q0           , h->field_scan           , sizeof(h->field_scan_q0          ));
749
521
        memcpy(h->field_scan8x8_q0        , h->field_scan8x8        , sizeof(h->field_scan8x8_q0       ));
750
521
        memcpy(h->field_scan8x8_cavlc_q0  , h->field_scan8x8_cavlc  , sizeof(h->field_scan8x8_cavlc_q0 ));
751
    }
752
533
}
753
754
26146
static enum AVPixelFormat get_pixel_format(H264Context *h, int force_callback)
755
{
756
#define HWACCEL_MAX (CONFIG_H264_DXVA2_HWACCEL + \
757
                     (CONFIG_H264_D3D11VA_HWACCEL * 2) + \
758
                     CONFIG_H264_NVDEC_HWACCEL + \
759
                     CONFIG_H264_VAAPI_HWACCEL + \
760
                     CONFIG_H264_VIDEOTOOLBOX_HWACCEL + \
761
                     CONFIG_H264_VDPAU_HWACCEL)
762
26146
    enum AVPixelFormat pix_fmts[HWACCEL_MAX + 2], *fmt = pix_fmts;
763
26146
    const enum AVPixelFormat *choices = pix_fmts;
764
    int i;
765
766

26146
    switch (h->ps.sps->bit_depth_luma) {
767
155
    case 9:
768
155
        if (CHROMA444(h)) {
769
            if (h->avctx->colorspace == AVCOL_SPC_RGB) {
770
                *fmt++ = AV_PIX_FMT_GBRP9;
771
            } else
772
                *fmt++ = AV_PIX_FMT_YUV444P9;
773
155
        } else if (CHROMA422(h))
774
52
            *fmt++ = AV_PIX_FMT_YUV422P9;
775
        else
776
103
            *fmt++ = AV_PIX_FMT_YUV420P9;
777
155
        break;
778
355
    case 10:
779
355
        if (CHROMA444(h)) {
780
51
            if (h->avctx->colorspace == AVCOL_SPC_RGB) {
781
                *fmt++ = AV_PIX_FMT_GBRP10;
782
            } else
783
51
                *fmt++ = AV_PIX_FMT_YUV444P10;
784
304
        } else if (CHROMA422(h))
785
164
            *fmt++ = AV_PIX_FMT_YUV422P10;
786
        else
787
140
            *fmt++ = AV_PIX_FMT_YUV420P10;
788
355
        break;
789
    case 12:
790
        if (CHROMA444(h)) {
791
            if (h->avctx->colorspace == AVCOL_SPC_RGB) {
792
                *fmt++ = AV_PIX_FMT_GBRP12;
793
            } else
794
                *fmt++ = AV_PIX_FMT_YUV444P12;
795
        } else if (CHROMA422(h))
796
            *fmt++ = AV_PIX_FMT_YUV422P12;
797
        else
798
            *fmt++ = AV_PIX_FMT_YUV420P12;
799
        break;
800
    case 14:
801
        if (CHROMA444(h)) {
802
            if (h->avctx->colorspace == AVCOL_SPC_RGB) {
803
                *fmt++ = AV_PIX_FMT_GBRP14;
804
            } else
805
                *fmt++ = AV_PIX_FMT_YUV444P14;
806
        } else if (CHROMA422(h))
807
            *fmt++ = AV_PIX_FMT_YUV422P14;
808
        else
809
            *fmt++ = AV_PIX_FMT_YUV420P14;
810
        break;
811
25636
    case 8:
812
#if CONFIG_H264_VDPAU_HWACCEL
813
25636
        *fmt++ = AV_PIX_FMT_VDPAU;
814
#endif
815
#if CONFIG_H264_NVDEC_HWACCEL
816
        *fmt++ = AV_PIX_FMT_CUDA;
817
#endif
818
25636
        if (CHROMA444(h)) {
819
400
            if (h->avctx->colorspace == AVCOL_SPC_RGB)
820
                *fmt++ = AV_PIX_FMT_GBRP;
821
400
            else if (h->avctx->color_range == AVCOL_RANGE_JPEG)
822
                *fmt++ = AV_PIX_FMT_YUVJ444P;
823
            else
824
400
                *fmt++ = AV_PIX_FMT_YUV444P;
825
25236
        } else if (CHROMA422(h)) {
826
22
            if (h->avctx->color_range == AVCOL_RANGE_JPEG)
827
                *fmt++ = AV_PIX_FMT_YUVJ422P;
828
            else
829
22
                *fmt++ = AV_PIX_FMT_YUV422P;
830
        } else {
831
#if CONFIG_H264_DXVA2_HWACCEL
832
            *fmt++ = AV_PIX_FMT_DXVA2_VLD;
833
#endif
834
#if CONFIG_H264_D3D11VA_HWACCEL
835
            *fmt++ = AV_PIX_FMT_D3D11VA_VLD;
836
            *fmt++ = AV_PIX_FMT_D3D11;
837
#endif
838
#if CONFIG_H264_VAAPI_HWACCEL
839
25214
            *fmt++ = AV_PIX_FMT_VAAPI;
840
#endif
841
#if CONFIG_H264_VIDEOTOOLBOX_HWACCEL
842
            *fmt++ = AV_PIX_FMT_VIDEOTOOLBOX;
843
#endif
844
25214
            if (h->avctx->codec->pix_fmts)
845
                choices = h->avctx->codec->pix_fmts;
846
25214
            else if (h->avctx->color_range == AVCOL_RANGE_JPEG)
847
3
                *fmt++ = AV_PIX_FMT_YUVJ420P;
848
            else
849
25211
                *fmt++ = AV_PIX_FMT_YUV420P;
850
        }
851
25636
        break;
852
    default:
853
        av_log(h->avctx, AV_LOG_ERROR,
854
               "Unsupported bit depth %d\n", h->ps.sps->bit_depth_luma);
855
        return AVERROR_INVALIDDATA;
856
    }
857
858
26146
    *fmt = AV_PIX_FMT_NONE;
859
860
77524
    for (i=0; choices[i] != AV_PIX_FMT_NONE; i++)
861

76996
        if (choices[i] == h->avctx->pix_fmt && !force_callback)
862
25618
            return choices[i];
863
528
    return ff_thread_get_format(h->avctx, choices);
864
}
865
866
/* export coded and cropped frame dimensions to AVCodecContext */
867
25906
static void init_dimensions(H264Context *h)
868
{
869
25906
    const SPS *sps = (const SPS*)h->ps.sps;
870
25906
    int cr = sps->crop_right;
871
25906
    int cl = sps->crop_left;
872
25906
    int ct = sps->crop_top;
873
25906
    int cb = sps->crop_bottom;
874
25906
    int width  = h->width  - (cr + cl);
875
25906
    int height = h->height - (ct + cb);
876
25906
    av_assert0(sps->crop_right + sps->crop_left < (unsigned)h->width);
877
25906
    av_assert0(sps->crop_top + sps->crop_bottom < (unsigned)h->height);
878
879
    /* handle container cropping */
880

25906
    if (h->width_from_caller > 0 && h->height_from_caller > 0     &&
881

23712
        !sps->crop_top && !sps->crop_left                         &&
882
23711
        FFALIGN(h->width_from_caller,  16) == FFALIGN(width,  16) &&
883
23706
        FFALIGN(h->height_from_caller, 16) == FFALIGN(height, 16) &&
884
23706
        h->width_from_caller  <= width &&
885
23706
        h->height_from_caller <= height) {
886
23705
        width  = h->width_from_caller;
887
23705
        height = h->height_from_caller;
888
23705
        cl = 0;
889
23705
        ct = 0;
890
23705
        cr = h->width - width;
891
23705
        cb = h->height - height;
892
    } else {
893
2201
        h->width_from_caller  = 0;
894
2201
        h->height_from_caller = 0;
895
    }
896
897
25906
    h->avctx->coded_width  = h->width;
898
25906
    h->avctx->coded_height = h->height;
899
25906
    h->avctx->width        = width;
900
25906
    h->avctx->height       = height;
901
25906
    h->crop_right          = cr;
902
25906
    h->crop_left           = cl;
903
25906
    h->crop_top            = ct;
904
25906
    h->crop_bottom         = cb;
905
25906
}
906
907
533
static int h264_slice_header_init(H264Context *h)
908
{
909
533
    const SPS *sps = h->ps.sps;
910
    int i, ret;
911
912
533
    ff_set_sar(h->avctx, sps->sar);
913
533
    av_pix_fmt_get_chroma_sub_sample(h->avctx->pix_fmt,
914
                                     &h->chroma_x_shift, &h->chroma_y_shift);
915
916
533
    if (sps->timing_info_present_flag) {
917
131
        int64_t den = sps->time_scale;
918
131
        if (h->x264_build < 44U)
919
            den *= 2;
920
131
        av_reduce(&h->avctx->framerate.den, &h->avctx->framerate.num,
921
131
                  sps->num_units_in_tick * h->avctx->ticks_per_frame, den, 1 << 30);
922
    }
923
924
533
    ff_h264_free_tables(h);
925
926
533
    h->first_field           = 0;
927
533
    h->prev_interlaced_frame = 1;
928
929
533
    init_scan_tables(h);
930
533
    ret = ff_h264_alloc_tables(h);
931
533
    if (ret < 0) {
932
        av_log(h->avctx, AV_LOG_ERROR, "Could not allocate memory\n");
933
        goto fail;
934
    }
935
936

533
    if (sps->bit_depth_luma < 8 || sps->bit_depth_luma > 14 ||
937

533
        sps->bit_depth_luma == 11 || sps->bit_depth_luma == 13
938
    ) {
939
        av_log(h->avctx, AV_LOG_ERROR, "Unsupported bit depth %d\n",
940
               sps->bit_depth_luma);
941
        ret = AVERROR_INVALIDDATA;
942
        goto fail;
943
    }
944
945
533
    h->cur_bit_depth_luma         =
946
533
    h->avctx->bits_per_raw_sample = sps->bit_depth_luma;
947
533
    h->cur_chroma_format_idc      = sps->chroma_format_idc;
948
533
    h->pixel_shift                = sps->bit_depth_luma > 8;
949
533
    h->chroma_format_idc          = sps->chroma_format_idc;
950
533
    h->bit_depth_luma             = sps->bit_depth_luma;
951
952
533
    ff_h264dsp_init(&h->h264dsp, sps->bit_depth_luma,
953
                    sps->chroma_format_idc);
954
533
    ff_h264chroma_init(&h->h264chroma, sps->bit_depth_chroma);
955
533
    ff_h264qpel_init(&h->h264qpel, sps->bit_depth_luma);
956
533
    ff_h264_pred_init(&h->hpc, h->avctx->codec_id, sps->bit_depth_luma,
957
                      sps->chroma_format_idc);
958
533
    ff_videodsp_init(&h->vdsp, sps->bit_depth_luma);
959
960
533
    if (!HAVE_THREADS || !(h->avctx->active_thread_type & FF_THREAD_SLICE)) {
961
532
        ret = ff_h264_slice_context_init(h, &h->slice_ctx[0]);
962
532
        if (ret < 0) {
963
            av_log(h->avctx, AV_LOG_ERROR, "context_init() failed.\n");
964
            goto fail;
965
        }
966
    } else {
967
3
        for (i = 0; i < h->nb_slice_ctx; i++) {
968
2
            H264SliceContext *sl = &h->slice_ctx[i];
969
970
2
            sl->h264               = h;
971
2
            sl->intra4x4_pred_mode = h->intra4x4_pred_mode + i * 8 * 2 * h->mb_stride;
972
2
            sl->mvd_table[0]       = h->mvd_table[0]       + i * 8 * 2 * h->mb_stride;
973
2
            sl->mvd_table[1]       = h->mvd_table[1]       + i * 8 * 2 * h->mb_stride;
974
975
2
            if ((ret = ff_h264_slice_context_init(h, sl)) < 0) {
976
                av_log(h->avctx, AV_LOG_ERROR, "context_init() failed.\n");
977
                goto fail;
978
            }
979
        }
980
    }
981
982
533
    h->context_initialized = 1;
983
984
533
    return 0;
985
fail:
986
    ff_h264_free_tables(h);
987
    h->context_initialized = 0;
988
    return ret;
989
}
990
991
51242
static enum AVPixelFormat non_j_pixfmt(enum AVPixelFormat a)
992
{
993

51242
    switch (a) {
994
2
    case AV_PIX_FMT_YUVJ420P: return AV_PIX_FMT_YUV420P;
995
    case AV_PIX_FMT_YUVJ422P: return AV_PIX_FMT_YUV422P;
996
    case AV_PIX_FMT_YUVJ444P: return AV_PIX_FMT_YUV444P;
997
51240
    default:
998
51240
        return a;
999
    }
1000
}
1001
1002
25906
static int h264_init_ps(H264Context *h, const H264SliceContext *sl, int first_slice)
1003
{
1004
    const SPS *sps;
1005
25906
    int needs_reinit = 0, must_reinit, ret;
1006
1007
25906
    if (first_slice) {
1008
25713
        av_buffer_unref(&h->ps.pps_ref);
1009
25713
        h->ps.pps = NULL;
1010
25713
        h->ps.pps_ref = av_buffer_ref(h->ps.pps_list[sl->pps_id]);
1011
25713
        if (!h->ps.pps_ref)
1012
            return AVERROR(ENOMEM);
1013
25713
        h->ps.pps = (const PPS*)h->ps.pps_ref->data;
1014
    }
1015
1016
25906
    if (h->ps.sps != (const SPS*)h->ps.sps_list[h->ps.pps->sps_id]->data) {
1017
530
        av_buffer_unref(&h->ps.sps_ref);
1018
530
        h->ps.sps = NULL;
1019
530
        h->ps.sps_ref = av_buffer_ref(h->ps.sps_list[h->ps.pps->sps_id]);
1020
530
        if (!h->ps.sps_ref)
1021
            return AVERROR(ENOMEM);
1022
530
        h->ps.sps = (const SPS*)h->ps.sps_ref->data;
1023
1024
530
        if (h->mb_width  != h->ps.sps->mb_width ||
1025
7
            h->mb_height != h->ps.sps->mb_height ||
1026
7
            h->cur_bit_depth_luma    != h->ps.sps->bit_depth_luma ||
1027
6
            h->cur_chroma_format_idc != h->ps.sps->chroma_format_idc
1028
        )
1029
525
            needs_reinit = 1;
1030
1031
530
        if (h->bit_depth_luma    != h->ps.sps->bit_depth_luma ||
1032
9
            h->chroma_format_idc != h->ps.sps->chroma_format_idc)
1033
522
            needs_reinit         = 1;
1034
    }
1035
25906
    sps = h->ps.sps;
1036
1037
51293
    must_reinit = (h->context_initialized &&
1038
25387
                    (   16*sps->mb_width != h->avctx->coded_width
1039
25383
                     || 16*sps->mb_height != h->avctx->coded_height
1040
25383
                     || h->cur_bit_depth_luma    != sps->bit_depth_luma
1041
25382
                     || h->cur_chroma_format_idc != sps->chroma_format_idc
1042
25381
                     || h->mb_width  != sps->mb_width
1043
25381
                     || h->mb_height != sps->mb_height
1044
                    ));
1045
25906
    if (h->avctx->pix_fmt == AV_PIX_FMT_NONE
1046
25621
        || (non_j_pixfmt(h->avctx->pix_fmt) != non_j_pixfmt(get_pixel_format(h, 0))))
1047
288
        must_reinit = 1;
1048
1049

25906
    if (first_slice && av_cmp_q(sps->sar, h->avctx->sample_aspect_ratio))
1050
48
        must_reinit = 1;
1051
1052
25906
    if (!h->setup_finished) {
1053
25906
        h->avctx->profile = ff_h264_get_profile(sps);
1054
25906
        h->avctx->level   = sps->level_idc;
1055
25906
        h->avctx->refs    = sps->ref_frame_count;
1056
1057
25906
        h->mb_width  = sps->mb_width;
1058
25906
        h->mb_height = sps->mb_height;
1059
25906
        h->mb_num    = h->mb_width * h->mb_height;
1060
25906
        h->mb_stride = h->mb_width + 1;
1061
1062
25906
        h->b_stride = h->mb_width * 4;
1063
1064
25906
        h->chroma_y_shift = sps->chroma_format_idc <= 1; // 400 uses yuv420p
1065
1066
25906
        h->width  = 16 * h->mb_width;
1067
25906
        h->height = 16 * h->mb_height;
1068
1069
25906
        init_dimensions(h);
1070
1071
25906
        if (sps->video_signal_type_present_flag) {
1072
1338
            h->avctx->color_range = sps->full_range > 0 ? AVCOL_RANGE_JPEG
1073
669
                                                        : AVCOL_RANGE_MPEG;
1074
669
            if (sps->colour_description_present_flag) {
1075
571
                if (h->avctx->colorspace != sps->colorspace)
1076
14
                    needs_reinit = 1;
1077
571
                h->avctx->color_primaries = sps->color_primaries;
1078
571
                h->avctx->color_trc       = sps->color_trc;
1079
571
                h->avctx->colorspace      = sps->colorspace;
1080
            }
1081
        }
1082
1083

25906
        if (h->sei.alternative_transfer.present &&
1084
            av_color_transfer_name(h->sei.alternative_transfer.preferred_transfer_characteristics) &&
1085
            h->sei.alternative_transfer.preferred_transfer_characteristics != AVCOL_TRC_UNSPECIFIED) {
1086
            h->avctx->color_trc = h->sei.alternative_transfer.preferred_transfer_characteristics;
1087
        }
1088
    }
1089
25906
    h->avctx->chroma_sample_location = sps->chroma_location;
1090
1091

25906
    if (!h->context_initialized || must_reinit || needs_reinit) {
1092
525
        int flush_changes = h->context_initialized;
1093
525
        h->context_initialized = 0;
1094
525
        if (sl != h->slice_ctx) {
1095
            av_log(h->avctx, AV_LOG_ERROR,
1096
                   "changing width %d -> %d / height %d -> %d on "
1097
                   "slice %d\n",
1098
                   h->width, h->avctx->coded_width,
1099
                   h->height, h->avctx->coded_height,
1100
                   h->current_slice + 1);
1101
            return AVERROR_INVALIDDATA;
1102
        }
1103
1104
        av_assert1(first_slice);
1105
1106
525
        if (flush_changes)
1107
6
            ff_h264_flush_change(h);
1108
1109
525
        if ((ret = get_pixel_format(h, 1)) < 0)
1110
            return ret;
1111
525
        h->avctx->pix_fmt = ret;
1112
1113
525
        av_log(h->avctx, AV_LOG_VERBOSE, "Reinit context to %dx%d, "
1114
525
               "pix_fmt: %s\n", h->width, h->height, av_get_pix_fmt_name(h->avctx->pix_fmt));
1115
1116
525
        if ((ret = h264_slice_header_init(h)) < 0) {
1117
            av_log(h->avctx, AV_LOG_ERROR,
1118
                   "h264_slice_header_init() failed\n");
1119
            return ret;
1120
        }
1121
    }
1122
1123
25906
    return 0;
1124
}
1125
1126
22669
static int h264_export_frame_props(H264Context *h)
1127
{
1128
22669
    const SPS *sps = h->ps.sps;
1129
22669
    H264Picture *cur = h->cur_pic_ptr;
1130
1131
22669
    cur->f->interlaced_frame = 0;
1132
22669
    cur->f->repeat_pict      = 0;
1133
1134
    /* Signal interlacing information externally. */
1135
    /* Prioritize picture timing SEI information over used
1136
     * decoding process if it exists. */
1137
1138

23918
    if (sps->pic_struct_present_flag && h->sei.picture_timing.present) {
1139
1249
        H264SEIPictureTiming *pt = &h->sei.picture_timing;
1140

1249
        switch (pt->pic_struct) {
1141
131
        case H264_SEI_PIC_STRUCT_FRAME:
1142
131
            break;
1143
411
        case H264_SEI_PIC_STRUCT_TOP_FIELD:
1144
        case H264_SEI_PIC_STRUCT_BOTTOM_FIELD:
1145
411
            cur->f->interlaced_frame = 1;
1146
411
            break;
1147
703
        case H264_SEI_PIC_STRUCT_TOP_BOTTOM:
1148
        case H264_SEI_PIC_STRUCT_BOTTOM_TOP:
1149

703
            if (FIELD_OR_MBAFF_PICTURE(h))
1150
699
                cur->f->interlaced_frame = 1;
1151
            else
1152
                // try to flag soft telecine progressive
1153
4
                cur->f->interlaced_frame = h->prev_interlaced_frame;
1154
703
            break;
1155
4
        case H264_SEI_PIC_STRUCT_TOP_BOTTOM_TOP:
1156
        case H264_SEI_PIC_STRUCT_BOTTOM_TOP_BOTTOM:
1157
            /* Signal the possibility of telecined film externally
1158
             * (pic_struct 5,6). From these hints, let the applications
1159
             * decide if they apply deinterlacing. */
1160
4
            cur->f->repeat_pict = 1;
1161
4
            break;
1162
        case H264_SEI_PIC_STRUCT_FRAME_DOUBLING:
1163
            cur->f->repeat_pict = 2;
1164
            break;
1165
        case H264_SEI_PIC_STRUCT_FRAME_TRIPLING:
1166
            cur->f->repeat_pict = 4;
1167
            break;
1168
        }
1169
1170
1249
        if ((pt->ct_type & 3) &&
1171
651
            pt->pic_struct <= H264_SEI_PIC_STRUCT_BOTTOM_TOP)
1172
650
            cur->f->interlaced_frame = (pt->ct_type & (1 << 1)) != 0;
1173
    } else {
1174
        /* Derive interlacing flag from used decoding process. */
1175

21420
        cur->f->interlaced_frame = FIELD_OR_MBAFF_PICTURE(h);
1176
    }
1177
22669
    h->prev_interlaced_frame = cur->f->interlaced_frame;
1178
1179
22669
    if (cur->field_poc[0] != cur->field_poc[1]) {
1180
        /* Derive top_field_first from field pocs. */
1181
3169
        cur->f->top_field_first = cur->field_poc[0] < cur->field_poc[1];
1182
    } else {
1183

19500
        if (sps->pic_struct_present_flag && h->sei.picture_timing.present) {
1184
            /* Use picture timing SEI information. Even if it is a
1185
             * information of a past frame, better than nothing. */
1186
138
            if (h->sei.picture_timing.pic_struct == H264_SEI_PIC_STRUCT_TOP_BOTTOM ||
1187
137
                h->sei.picture_timing.pic_struct == H264_SEI_PIC_STRUCT_TOP_BOTTOM_TOP)
1188
3
                cur->f->top_field_first = 1;
1189
            else
1190
135
                cur->f->top_field_first = 0;
1191
19362
        } else if (cur->f->interlaced_frame) {
1192
            /* Default to top field first when pic_struct_present_flag
1193
             * is not set but interlaced frame detected */
1194
2554
            cur->f->top_field_first = 1;
1195
        } else {
1196
            /* Most likely progressive */
1197
16808
            cur->f->top_field_first = 0;
1198
        }
1199
    }
1200
1201
22669
    if (h->sei.frame_packing.present &&
1202
        h->sei.frame_packing.arrangement_type <= 6 &&
1203
        h->sei.frame_packing.content_interpretation_type > 0 &&
1204
        h->sei.frame_packing.content_interpretation_type < 3) {
1205
        H264SEIFramePacking *fp = &h->sei.frame_packing;
1206
        AVStereo3D *stereo = av_stereo3d_create_side_data(cur->f);
1207
        if (stereo) {
1208
        switch (fp->arrangement_type) {
1209
        case H264_SEI_FPA_TYPE_CHECKERBOARD:
1210
            stereo->type = AV_STEREO3D_CHECKERBOARD;
1211
            break;
1212
        case H264_SEI_FPA_TYPE_INTERLEAVE_COLUMN:
1213
            stereo->type = AV_STEREO3D_COLUMNS;
1214
            break;
1215
        case H264_SEI_FPA_TYPE_INTERLEAVE_ROW:
1216
            stereo->type = AV_STEREO3D_LINES;
1217
            break;
1218
        case H264_SEI_FPA_TYPE_SIDE_BY_SIDE:
1219
            if (fp->quincunx_sampling_flag)
1220
                stereo->type = AV_STEREO3D_SIDEBYSIDE_QUINCUNX;
1221
            else
1222
                stereo->type = AV_STEREO3D_SIDEBYSIDE;
1223
            break;
1224
        case H264_SEI_FPA_TYPE_TOP_BOTTOM:
1225
            stereo->type = AV_STEREO3D_TOPBOTTOM;
1226
            break;
1227
        case H264_SEI_FPA_TYPE_INTERLEAVE_TEMPORAL:
1228
            stereo->type = AV_STEREO3D_FRAMESEQUENCE;
1229
            break;
1230
        case H264_SEI_FPA_TYPE_2D:
1231
            stereo->type = AV_STEREO3D_2D;
1232
            break;
1233
        }
1234
1235
        if (fp->content_interpretation_type == 2)
1236
            stereo->flags = AV_STEREO3D_FLAG_INVERT;
1237
1238
        if (fp->arrangement_type == H264_SEI_FPA_TYPE_INTERLEAVE_TEMPORAL) {
1239
            if (fp->current_frame_is_frame0_flag)
1240
                stereo->view = AV_STEREO3D_VIEW_LEFT;
1241
            else
1242
                stereo->view = AV_STEREO3D_VIEW_RIGHT;
1243
        }
1244
        }
1245
    }
1246
1247
22669
    if (h->sei.display_orientation.present &&
1248
1
        (h->sei.display_orientation.anticlockwise_rotation ||
1249
1
         h->sei.display_orientation.hflip ||
1250
1
         h->sei.display_orientation.vflip)) {
1251
        H264SEIDisplayOrientation *o = &h->sei.display_orientation;
1252
        double angle = o->anticlockwise_rotation * 360 / (double) (1 << 16);
1253
        AVFrameSideData *rotation = av_frame_new_side_data(cur->f,
1254
                                                           AV_FRAME_DATA_DISPLAYMATRIX,
1255
                                                           sizeof(int32_t) * 9);
1256
        if (rotation) {
1257
            av_display_rotation_set((int32_t *)rotation->data, angle);
1258
            av_display_matrix_flip((int32_t *)rotation->data,
1259
                                   o->hflip, o->vflip);
1260
        }
1261
    }
1262
1263
22669
    if (h->sei.afd.present) {
1264
140
        AVFrameSideData *sd = av_frame_new_side_data(cur->f, AV_FRAME_DATA_AFD,
1265
                                                     sizeof(uint8_t));
1266
1267
140
        if (sd) {
1268
140
            *sd->data = h->sei.afd.active_format_description;
1269
140
            h->sei.afd.present = 0;
1270
        }
1271
    }
1272
1273
22669
    if (h->sei.a53_caption.buf_ref) {
1274
1
        H264SEIA53Caption *a53 = &h->sei.a53_caption;
1275
1276
1
        AVFrameSideData *sd = av_frame_new_side_data_from_buf(cur->f, AV_FRAME_DATA_A53_CC, a53->buf_ref);
1277
1
        if (!sd)
1278
            av_buffer_unref(&a53->buf_ref);
1279
1
        a53->buf_ref = NULL;
1280
1281
1
        h->avctx->properties |= FF_CODEC_PROPERTY_CLOSED_CAPTIONS;
1282
    }
1283
1284
22669
    if (h->sei.picture_timing.timecode_cnt > 0) {
1285
651
        uint32_t tc = 0;
1286
        uint32_t *tc_sd;
1287
1288
651
        AVFrameSideData *tcside = av_frame_new_side_data(cur->f,
1289
                                                         AV_FRAME_DATA_S12M_TIMECODE,
1290
                                                         sizeof(uint32_t)*4);
1291
651
        if (!tcside)
1292
            return AVERROR(ENOMEM);
1293
1294
651
        tc_sd = (uint32_t*)tcside->data;
1295
651
        tc_sd[0] = h->sei.picture_timing.timecode_cnt;
1296
1297
1603
        for (int i = 0; i < tc_sd[0]; i++) {
1298
            uint32_t frames;
1299
1300
            /* For SMPTE 12-M timecodes, frame count is a special case if > 30 FPS.
1301
               See SMPTE ST 12-1:2014 Sec 12.1 for more info. */
1302
952
            if (av_cmp_q(h->avctx->framerate, (AVRational) {30, 1}) == 1) {
1303
                frames = h->sei.picture_timing.timecode[i].frame / 2;
1304
                if (h->sei.picture_timing.timecode[i].frame % 2 == 1) {
1305
                    if (av_cmp_q(h->avctx->framerate, (AVRational) {50, 1}) == 0)
1306
                        tc |= (1 << 7);
1307
                    else
1308
                        tc |= (1 << 23);
1309
                }
1310
            } else {
1311
952
                frames = h->sei.picture_timing.timecode[i].frame;
1312
            }
1313
1314
952
            tc |= h->sei.picture_timing.timecode[i].dropframe << 30;
1315
952
            tc |= (frames / 10) << 28;
1316
952
            tc |= (frames % 10) << 24;
1317
952
            tc |= (h->sei.picture_timing.timecode[i].seconds / 10) << 20;
1318
952
            tc |= (h->sei.picture_timing.timecode[i].seconds % 10) << 16;
1319
952
            tc |= (h->sei.picture_timing.timecode[i].minutes / 10) << 12;
1320
952
            tc |= (h->sei.picture_timing.timecode[i].minutes % 10) << 8;
1321
952
            tc |= (h->sei.picture_timing.timecode[i].hours / 10) << 4;
1322
952
            tc |= (h->sei.picture_timing.timecode[i].hours % 10);
1323
1324
952
            tc_sd[i + 1] = tc;
1325
        }
1326
651
        h->sei.picture_timing.timecode_cnt = 0;
1327
    }
1328
1329
22669
    return 0;
1330
}
1331
1332
22669
static int h264_select_output_frame(H264Context *h)
1333
{
1334
22669
    const SPS *sps = h->ps.sps;
1335
22669
    H264Picture *out = h->cur_pic_ptr;
1336
22669
    H264Picture *cur = h->cur_pic_ptr;
1337
    int i, pics, out_of_order, out_idx;
1338
1339
22669
    cur->mmco_reset = h->mmco_reset;
1340
22669
    h->mmco_reset = 0;
1341
1342
22669
    if (sps->bitstream_restriction_flag ||
1343
19196
        h->avctx->strict_std_compliance >= FF_COMPLIANCE_STRICT) {
1344
3473
        h->avctx->has_b_frames = FFMAX(h->avctx->has_b_frames, sps->num_reorder_frames);
1345
    }
1346
1347
371086
    for (i = 0; 1; i++) {
1348

371086
        if(i == MAX_DELAYED_PIC_COUNT || cur->poc < h->last_pocs[i]){
1349
22669
            if(i)
1350
22669
                h->last_pocs[i-1] = cur->poc;
1351
22669
            break;
1352
348417
        } else if(i) {
1353
325748
            h->last_pocs[i-1]= h->last_pocs[i];
1354
        }
1355
    }
1356
22669
    out_of_order = MAX_DELAYED_PIC_COUNT - i;
1357
22669
    if(   cur->f->pict_type == AV_PICTURE_TYPE_B
1358

15226
       || (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))
1359
12018
        out_of_order = FFMAX(out_of_order, 1);
1360
22669
    if (out_of_order == MAX_DELAYED_PIC_COUNT) {
1361
        av_log(h->avctx, AV_LOG_VERBOSE, "Invalid POC %d<%d\n", cur->poc, h->last_pocs[0]);
1362
        for (i = 1; i < MAX_DELAYED_PIC_COUNT; i++)
1363
            h->last_pocs[i] = INT_MIN;
1364
        h->last_pocs[0] = cur->poc;
1365
        cur->mmco_reset = 1;
1366

22669
    } else if(h->avctx->has_b_frames < out_of_order && !sps->bitstream_restriction_flag){
1367
131
        int loglevel = h->avctx->frame_number > 1 ? AV_LOG_WARNING : AV_LOG_VERBOSE;
1368
131
        av_log(h->avctx, loglevel, "Increasing reorder buffer to %d\n", out_of_order);
1369
131
        h->avctx->has_b_frames = out_of_order;
1370
    }
1371
1372
22669
    pics = 0;
1373
51559
    while (h->delayed_pic[pics])
1374
28890
        pics++;
1375
1376
22669
    av_assert0(pics <= MAX_DELAYED_PIC_COUNT);
1377
1378
22669
    h->delayed_pic[pics++] = cur;
1379
22669
    if (cur->reference == 0)
1380
21259
        cur->reference = DELAYED_PIC_REF;
1381
1382
22669
    out     = h->delayed_pic[0];
1383
22669
    out_idx = 0;
1384
48654
    for (i = 1; h->delayed_pic[i] &&
1385
26435
                !h->delayed_pic[i]->f->key_frame &&
1386
26072
                !h->delayed_pic[i]->mmco_reset;
1387
25985
         i++)
1388
25985
        if (h->delayed_pic[i]->poc < out->poc) {
1389
9615
            out     = h->delayed_pic[i];
1390
9615
            out_idx = i;
1391
        }
1392
22669
    if (h->avctx->has_b_frames == 0 &&
1393

9467
        (h->delayed_pic[0]->f->key_frame || h->delayed_pic[0]->mmco_reset))
1394
776
        h->next_outputed_poc = INT_MIN;
1395
22669
    out_of_order = out->poc < h->next_outputed_poc;
1396
1397

22669
    if (out_of_order || pics > h->avctx->has_b_frames) {
1398
22199
        out->reference &= ~DELAYED_PIC_REF;
1399
58583
        for (i = out_idx; h->delayed_pic[i]; i++)
1400
36384
            h->delayed_pic[i] = h->delayed_pic[i + 1];
1401
    }
1402

22669
    if (!out_of_order && pics > h->avctx->has_b_frames) {
1403
21950
        h->next_output_pic = out;
1404


21950
        if (out_idx == 0 && h->delayed_pic[0] && (h->delayed_pic[0]->f->key_frame || h->delayed_pic[0]->mmco_reset)) {
1405
87
            h->next_outputed_poc = INT_MIN;
1406
        } else
1407
21863
            h->next_outputed_poc = out->poc;
1408
1409
21950
        if (out->recovered) {
1410
            // We have reached an recovery point and all frames after it in
1411
            // display order are "recovered".
1412
21875
            h->frame_recovered |= FRAME_RECOVERED_SEI;
1413
        }
1414
21950
        out->recovered |= !!(h->frame_recovered & FRAME_RECOVERED_SEI);
1415
1416
21950
        if (!out->recovered) {
1417
70
            if (!(h->avctx->flags & AV_CODEC_FLAG_OUTPUT_CORRUPT) &&
1418
70
                !(h->avctx->flags2 & AV_CODEC_FLAG2_SHOW_ALL)) {
1419
70
                h->next_output_pic = NULL;
1420
            } else {
1421
                out->f->flags |= AV_FRAME_FLAG_CORRUPT;
1422
            }
1423
        }
1424
    } else {
1425
719
        av_log(h->avctx, AV_LOG_DEBUG, "no picture %s\n", out_of_order ? "ooo" : "");
1426
    }
1427
1428
22669
    return 0;
1429
}
1430
1431
/* This function is called right after decoding the slice header for a first
1432
 * slice in a field (or a frame). It decides whether we are decoding a new frame
1433
 * or a second field in a pair and does the necessary setup.
1434
 */
1435
25906
static int h264_field_start(H264Context *h, const H264SliceContext *sl,
1436
                            const H2645NAL *nal, int first_slice)
1437
{
1438
    int i;
1439
    const SPS *sps;
1440
1441
    int last_pic_structure, last_pic_droppable, ret;
1442
1443
25906
    ret = h264_init_ps(h, sl, first_slice);
1444
25906
    if (ret < 0)
1445
        return ret;
1446
1447
25906
    sps = h->ps.sps;
1448
1449

25906
    if (sps && sps->bitstream_restriction_flag &&
1450
3969
        h->avctx->has_b_frames < sps->num_reorder_frames) {
1451
21
        h->avctx->has_b_frames = sps->num_reorder_frames;
1452
    }
1453
1454
25906
    last_pic_droppable   = h->droppable;
1455
25906
    last_pic_structure   = h->picture_structure;
1456
25906
    h->droppable         = (nal->ref_idc == 0);
1457
25906
    h->picture_structure = sl->picture_structure;
1458
1459
25906
    h->poc.frame_num        = sl->frame_num;
1460
25906
    h->poc.poc_lsb          = sl->poc_lsb;
1461
25906
    h->poc.delta_poc_bottom = sl->delta_poc_bottom;
1462
25906
    h->poc.delta_poc[0]     = sl->delta_poc[0];
1463
25906
    h->poc.delta_poc[1]     = sl->delta_poc[1];
1464
1465
    /* Shorten frame num gaps so we don't have to allocate reference
1466
     * frames just to throw them away */
1467
25906
    if (h->poc.frame_num != h->poc.prev_frame_num) {
1468
14588
        int unwrap_prev_frame_num = h->poc.prev_frame_num;
1469
14588
        int max_frame_num         = 1 << sps->log2_max_frame_num;
1470
1471
14588
        if (unwrap_prev_frame_num > h->poc.frame_num)
1472
145
            unwrap_prev_frame_num -= max_frame_num;
1473
1474
14588
        if ((h->poc.frame_num - unwrap_prev_frame_num) > sps->ref_frame_count) {
1475
66
            unwrap_prev_frame_num = (h->poc.frame_num - sps->ref_frame_count) - 1;
1476
66
            if (unwrap_prev_frame_num < 0)
1477
2
                unwrap_prev_frame_num += max_frame_num;
1478
1479
66
            h->poc.prev_frame_num = unwrap_prev_frame_num;
1480
        }
1481
    }
1482
1483
    /* See if we have a decoded first field looking for a pair...
1484
     * Here, we're using that to see if we should mark previously
1485
     * decode frames as "finished".
1486
     * We have to do that before the "dummy" in-between frame allocation,
1487
     * since that can modify h->cur_pic_ptr. */
1488
25906
    if (h->first_field) {
1489
3233
        int last_field = last_pic_structure == PICT_BOTTOM_FIELD;
1490
3233
        av_assert0(h->cur_pic_ptr);
1491
3233
        av_assert0(h->cur_pic_ptr->f->buf[0]);
1492
        assert(h->cur_pic_ptr->reference != DELAYED_PIC_REF);
1493
1494
        /* Mark old field/frame as completed */
1495
3233
        if (h->cur_pic_ptr->tf.owner[last_field] == h->avctx) {
1496
3233
            ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX, last_field);
1497
        }
1498
1499
        /* figure out if we have a complementary field pair */
1500

3233
        if (!FIELD_PICTURE(h) || h->picture_structure == last_pic_structure) {
1501
            /* Previous field is unmatched. Don't display it, but let it
1502
             * remain for reference if marked as such. */
1503
            if (last_pic_structure != PICT_FRAME) {
1504
                ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX,
1505
                                          last_pic_structure == PICT_TOP_FIELD);
1506
            }
1507
        } else {
1508
3233
            if (h->cur_pic_ptr->frame_num != h->poc.frame_num) {
1509
                /* This and previous field were reference, but had
1510
                 * different frame_nums. Consider this field first in
1511
                 * pair. Throw away previous field except for reference
1512
                 * purposes. */
1513
                if (last_pic_structure != PICT_FRAME) {
1514
                    ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX,
1515
                                              last_pic_structure == PICT_TOP_FIELD);
1516
                }
1517
            } else {
1518
                /* Second field in complementary pair */
1519

3233
                if (!((last_pic_structure   == PICT_TOP_FIELD &&
1520
3225
                       h->picture_structure == PICT_BOTTOM_FIELD) ||
1521
8
                      (last_pic_structure   == PICT_BOTTOM_FIELD &&
1522
8
                       h->picture_structure == PICT_TOP_FIELD))) {
1523
                    av_log(h->avctx, AV_LOG_ERROR,
1524
                           "Invalid field mode combination %d/%d\n",
1525
                           last_pic_structure, h->picture_structure);
1526
                    h->picture_structure = last_pic_structure;
1527
                    h->droppable         = last_pic_droppable;
1528
                    return AVERROR_INVALIDDATA;
1529
3233
                } else if (last_pic_droppable != h->droppable) {
1530
                    avpriv_request_sample(h->avctx,
1531
                                          "Found reference and non-reference fields in the same frame, which");
1532
                    h->picture_structure = last_pic_structure;
1533
                    h->droppable         = last_pic_droppable;
1534
                    return AVERROR_PATCHWELCOME;
1535
                }
1536
            }
1537
        }
1538
    }
1539
1540

26578
    while (h->poc.frame_num != h->poc.prev_frame_num && !h->first_field &&
1541
15260
           h->poc.frame_num != (h->poc.prev_frame_num + 1) % (1 << sps->log2_max_frame_num)) {
1542
672
        H264Picture *prev = h->short_ref_count ? h->short_ref[0] : NULL;
1543
672
        av_log(h->avctx, AV_LOG_DEBUG, "Frame num gap %d %d\n",
1544
               h->poc.frame_num, h->poc.prev_frame_num);
1545
672
        if (!sps->gaps_in_frame_num_allowed_flag)
1546
1615
            for(i=0; i<FF_ARRAY_ELEMS(h->last_pocs); i++)
1547
1520
                h->last_pocs[i] = INT_MIN;
1548
672
        ret = h264_frame_start(h);
1549
672
        if (ret < 0) {
1550
            h->first_field = 0;
1551
            return ret;
1552
        }
1553
1554
672
        h->poc.prev_frame_num++;
1555
672
        h->poc.prev_frame_num        %= 1 << sps->log2_max_frame_num;
1556
672
        h->cur_pic_ptr->frame_num = h->poc.prev_frame_num;
1557
672
        h->cur_pic_ptr->invalid_gap = !sps->gaps_in_frame_num_allowed_flag;
1558
672
        ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX, 0);
1559
672
        ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX, 1);
1560
1561
672
        h->explicit_ref_marking = 0;
1562
672
        ret = ff_h264_execute_ref_pic_marking(h);
1563

672
        if (ret < 0 && (h->avctx->err_recognition & AV_EF_EXPLODE))
1564
            return ret;
1565
        /* Error concealment: If a ref is missing, copy the previous ref
1566
         * in its place.
1567
         * FIXME: Avoiding a memcpy would be nice, but ref handling makes
1568
         * many assumptions about there being no actual duplicates.
1569
         * FIXME: This does not copy padding for out-of-frame motion
1570
         * vectors.  Given we are concealing a lost frame, this probably
1571
         * is not noticeable by comparison, but it should be fixed. */
1572
672
        if (h->short_ref_count) {
1573
672
            int c[4] = {
1574
672
                1<<(h->ps.sps->bit_depth_luma-1),
1575
672
                1<<(h->ps.sps->bit_depth_chroma-1),
1576
672
                1<<(h->ps.sps->bit_depth_chroma-1),
1577
                -1
1578
            };
1579
1580
672
            if (prev &&
1581
655
                h->short_ref[0]->f->width == prev->f->width &&
1582
655
                h->short_ref[0]->f->height == prev->f->height &&
1583
655
                h->short_ref[0]->f->format == prev->f->format) {
1584
655
                ff_thread_await_progress(&prev->tf, INT_MAX, 0);
1585
655
                if (prev->field_picture)
1586
14
                    ff_thread_await_progress(&prev->tf, INT_MAX, 1);
1587
655
                av_image_copy(h->short_ref[0]->f->data,
1588
655
                              h->short_ref[0]->f->linesize,
1589
655
                              (const uint8_t **)prev->f->data,
1590
655
                              prev->f->linesize,
1591
655
                              prev->f->format,
1592
655
                              prev->f->width,
1593
655
                              prev->f->height);
1594
655
                h->short_ref[0]->poc = prev->poc + 2;
1595

17
            } else if (!h->frame_recovered && !h->avctx->hwaccel)
1596
14
                ff_color_frame(h->short_ref[0]->f, c);
1597
672
            h->short_ref[0]->frame_num = h->poc.prev_frame_num;
1598
        }
1599
    }
1600
1601
    /* See if we have a decoded first field looking for a pair...
1602
     * We're using that to see whether to continue decoding in that
1603
     * frame, or to allocate a new one. */
1604
25906
    if (h->first_field) {
1605
3233
        av_assert0(h->cur_pic_ptr);
1606
3233
        av_assert0(h->cur_pic_ptr->f->buf[0]);
1607
        assert(h->cur_pic_ptr->reference != DELAYED_PIC_REF);
1608
1609
        /* figure out if we have a complementary field pair */
1610

3233
        if (!FIELD_PICTURE(h) || h->picture_structure == last_pic_structure) {
1611
            /* Previous field is unmatched. Don't display it, but let it
1612
             * remain for reference if marked as such. */
1613
            h->missing_fields ++;
1614
            h->cur_pic_ptr = NULL;
1615
            h->first_field = FIELD_PICTURE(h);
1616
        } else {
1617
3233
            h->missing_fields = 0;
1618
3233
            if (h->cur_pic_ptr->frame_num != h->poc.frame_num) {
1619
                ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX,
1620
                                          h->picture_structure==PICT_BOTTOM_FIELD);
1621
                /* This and the previous field had different frame_nums.
1622
                 * Consider this field first in pair. Throw away previous
1623
                 * one except for reference purposes. */
1624
                h->first_field = 1;
1625
                h->cur_pic_ptr = NULL;
1626
3233
            } else if (h->cur_pic_ptr->reference & DELAYED_PIC_REF) {
1627
                /* This frame was already output, we cannot draw into it
1628
                 * anymore.
1629
                 */
1630
                h->first_field = 1;
1631
                h->cur_pic_ptr = NULL;
1632
            } else {
1633
                /* Second field in complementary pair */
1634
3233
                h->first_field = 0;
1635
            }
1636
        }
1637
    } else {
1638
        /* Frame or first field in a potentially complementary pair */
1639
22673
        h->first_field = FIELD_PICTURE(h);
1640
    }
1641
1642

25906
    if (!FIELD_PICTURE(h) || h->first_field) {
1643
22673
        if (h264_frame_start(h) < 0) {
1644
            h->first_field = 0;
1645
            return AVERROR_INVALIDDATA;
1646
        }
1647
    } else {
1648
3233
        int field = h->picture_structure == PICT_BOTTOM_FIELD;
1649
3233
        release_unused_pictures(h, 0);
1650
3233
        h->cur_pic_ptr->tf.owner[field] = h->avctx;
1651
    }
1652
    /* Some macroblocks can be accessed before they're available in case
1653
    * of lost slices, MBAFF or threading. */
1654
25906
    if (FIELD_PICTURE(h)) {
1655
157329
        for(i = (h->picture_structure == PICT_BOTTOM_FIELD); i<h->mb_height; i++)
1656
150859
            memset(h->slice_table + i*h->mb_stride, -1, (h->mb_stride - (i+1==h->mb_height)) * sizeof(*h->slice_table));
1657
    } else {
1658
19436
        memset(h->slice_table, -1,
1659
19436
            (h->mb_height * h->mb_stride - 1) * sizeof(*h->slice_table));
1660
    }
1661
1662
25906
    ret = ff_h264_init_poc(h->cur_pic_ptr->field_poc, &h->cur_pic_ptr->poc,
1663
                     h->ps.sps, &h->poc, h->picture_structure, nal->ref_idc);
1664
25906
    if (ret < 0)
1665
        return ret;
1666
1667
25906
    memcpy(h->mmco, sl->mmco, sl->nb_mmco * sizeof(*h->mmco));
1668
25906
    h->nb_mmco = sl->nb_mmco;
1669
25906
    h->explicit_ref_marking = sl->explicit_ref_marking;
1670
1671
25906
    h->picture_idr = nal->type == H264_NAL_IDR_SLICE;
1672
1673
25906
    if (h->sei.recovery_point.recovery_frame_cnt >= 0) {
1674
46
        const int sei_recovery_frame_cnt = h->sei.recovery_point.recovery_frame_cnt;
1675
1676

46
        if (h->poc.frame_num != sei_recovery_frame_cnt || sl->slice_type_nos != AV_PICTURE_TYPE_I)
1677
33
            h->valid_recovery_point = 1;
1678
1679
46
        if (   h->recovery_frame < 0
1680
1
            || av_mod_uintp2(h->recovery_frame - h->poc.frame_num, h->ps.sps->log2_max_frame_num) > sei_recovery_frame_cnt) {
1681
45
            h->recovery_frame = av_mod_uintp2(h->poc.frame_num + sei_recovery_frame_cnt, h->ps.sps->log2_max_frame_num);
1682
1683
45
            if (!h->valid_recovery_point)
1684
6
                h->recovery_frame = h->poc.frame_num;
1685
        }
1686
    }
1687
1688
25906
    h->cur_pic_ptr->f->key_frame |= (nal->type == H264_NAL_IDR_SLICE);
1689
1690
25906
    if (nal->type == H264_NAL_IDR_SLICE ||
1691

24898
        (h->recovery_frame == h->poc.frame_num && nal->ref_idc)) {
1692
1041
        h->recovery_frame         = -1;
1693
1041
        h->cur_pic_ptr->recovered = 1;
1694
    }
1695
    // If we have an IDR, all frames after it in decoded order are
1696
    // "recovered".
1697
25906
    if (nal->type == H264_NAL_IDR_SLICE)
1698
1008
        h->frame_recovered |= FRAME_RECOVERED_IDR;
1699
#if 1
1700
25906
    h->cur_pic_ptr->recovered |= h->frame_recovered;
1701
#else
1702
    h->cur_pic_ptr->recovered |= !!(h->frame_recovered & FRAME_RECOVERED_IDR);
1703
#endif
1704
1705
    /* Set the frame properties/side data. Only done for the second field in
1706
     * field coded frames, since some SEI information is present for each field
1707
     * and is merged by the SEI parsing code. */
1708

25906
    if (!FIELD_PICTURE(h) || !h->first_field || h->missing_fields > 1) {
1709
22669
        ret = h264_export_frame_props(h);
1710
22669
        if (ret < 0)
1711
            return ret;
1712
1713
22669
        ret = h264_select_output_frame(h);
1714
22669
        if (ret < 0)
1715
            return ret;
1716
    }
1717
1718
25906
    return 0;
1719
}
1720
1721
34468
static int h264_slice_header_parse(const H264Context *h, H264SliceContext *sl,
1722
                                   const H2645NAL *nal)
1723
{
1724
    const SPS *sps;
1725
    const PPS *pps;
1726
    int ret;
1727
    unsigned int slice_type, tmp, i;
1728
    int field_pic_flag, bottom_field_flag;
1729

34468
    int first_slice = sl == h->slice_ctx && !h->current_slice;
1730
    int picture_structure;
1731
1732
34468
    if (first_slice)
1733
26161
        av_assert0(!h->setup_finished);
1734
1735
34468
    sl->first_mb_addr = get_ue_golomb_long(&sl->gb);
1736
1737
34468
    slice_type = get_ue_golomb_31(&sl->gb);
1738
34468
    if (slice_type > 9) {
1739
        av_log(h->avctx, AV_LOG_ERROR,
1740
               "slice type %d too large at %d\n",
1741
               slice_type, sl->first_mb_addr);
1742
        return AVERROR_INVALIDDATA;
1743
    }
1744
34468
    if (slice_type > 4) {
1745
21744
        slice_type -= 5;
1746
21744
        sl->slice_type_fixed = 1;
1747
    } else
1748
12724
        sl->slice_type_fixed = 0;
1749
1750
34468
    slice_type         = ff_h264_golomb_to_pict_type[slice_type];
1751
34468
    sl->slice_type     = slice_type;
1752
34468
    sl->slice_type_nos = slice_type & 3;
1753
1754
34468
    if (nal->type  == H264_NAL_IDR_SLICE &&
1755
2072
        sl->slice_type_nos != AV_PICTURE_TYPE_I) {
1756
        av_log(h->avctx, AV_LOG_ERROR, "A non-intra slice in an IDR NAL unit.\n");
1757
        return AVERROR_INVALIDDATA;
1758
    }
1759
1760
34468
    sl->pps_id = get_ue_golomb(&sl->gb);
1761
34468
    if (sl->pps_id >= MAX_PPS_COUNT) {
1762
        av_log(h->avctx, AV_LOG_ERROR, "pps_id %u out of range\n", sl->pps_id);
1763
        return AVERROR_INVALIDDATA;
1764
    }
1765
34468
    if (!h->ps.pps_list[sl->pps_id]) {
1766
377
        av_log(h->avctx, AV_LOG_ERROR,
1767
               "non-existing PPS %u referenced\n",
1768
               sl->pps_id);
1769
377
        return AVERROR_INVALIDDATA;
1770
    }
1771
34091
    pps = (const PPS*)h->ps.pps_list[sl->pps_id]->data;
1772
1773
34091
    if (!h->ps.sps_list[pps->sps_id]) {
1774
        av_log(h->avctx, AV_LOG_ERROR,
1775
               "non-existing SPS %u referenced\n", pps->sps_id);
1776
        return AVERROR_INVALIDDATA;
1777
    }
1778
34091
    sps = (const SPS*)h->ps.sps_list[pps->sps_id]->data;
1779
1780
34091
    sl->frame_num = get_bits(&sl->gb, sps->log2_max_frame_num);
1781
34091
    if (!first_slice) {
1782
8298
        if (h->poc.frame_num != sl->frame_num) {
1783
            av_log(h->avctx, AV_LOG_ERROR, "Frame num change from %d to %d\n",
1784
                   h->poc.frame_num, sl->frame_num);
1785
            return AVERROR_INVALIDDATA;
1786
        }
1787
    }
1788
1789
34091
    sl->mb_mbaff       = 0;
1790
1791
34091
    if (sps->frame_mbs_only_flag) {
1792
20349
        picture_structure = PICT_FRAME;
1793
    } else {
1794

13742
        if (!sps->direct_8x8_inference_flag && slice_type == AV_PICTURE_TYPE_B) {
1795
            av_log(h->avctx, AV_LOG_ERROR, "This stream was generated by a broken encoder, invalid 8x8 inference\n");
1796
            return -1;
1797
        }
1798
13742
        field_pic_flag = get_bits1(&sl->gb);
1799
13742
        if (field_pic_flag) {
1800
8477
            bottom_field_flag = get_bits1(&sl->gb);
1801
8477
            picture_structure = PICT_TOP_FIELD + bottom_field_flag;
1802
        } else {
1803
5265
            picture_structure = PICT_FRAME;
1804
        }
1805
    }
1806
34091
    sl->picture_structure      = picture_structure;
1807
34091
    sl->mb_field_decoding_flag = picture_structure != PICT_FRAME;
1808
1809
34091
    if (picture_structure == PICT_FRAME) {
1810
25614
        sl->curr_pic_num = sl->frame_num;
1811
25614
        sl->max_pic_num  = 1 << sps->log2_max_frame_num;
1812
    } else {
1813
8477
        sl->curr_pic_num = 2 * sl->frame_num + 1;
1814
8477
        sl->max_pic_num  = 1 << (sps->log2_max_frame_num + 1);
1815
    }
1816
1817
34091
    if (nal->type == H264_NAL_IDR_SLICE)
1818
2067
        get_ue_golomb_long(&sl->gb); /* idr_pic_id */
1819
1820
34091
    if (sps->poc_type == 0) {
1821
26923
        sl->poc_lsb = get_bits(&sl->gb, sps->log2_max_poc_lsb);
1822
1823

26923
        if (pps->pic_order_present == 1 && picture_structure == PICT_FRAME)
1824
5830
            sl->delta_poc_bottom = get_se_golomb(&sl->gb);
1825
    }
1826
1827

34091
    if (sps->poc_type == 1 && !sps->delta_pic_order_always_zero_flag) {
1828
2848
        sl->delta_poc[0] = get_se_golomb(&sl->gb);
1829
1830

2848
        if (pps->pic_order_present == 1 && picture_structure == PICT_FRAME)
1831
453
            sl->delta_poc[1] = get_se_golomb(&sl->gb);
1832
    }
1833
1834
34091
    sl->redundant_pic_count = 0;
1835
34091
    if (pps->redundant_pic_cnt_present)
1836
        sl->redundant_pic_count = get_ue_golomb(&sl->gb);
1837
1838
34091
    if (sl->slice_type_nos == AV_PICTURE_TYPE_B)
1839
11927
        sl->direct_spatial_mv_pred = get_bits1(&sl->gb);
1840
1841
34091
    ret = ff_h264_parse_ref_count(&sl->list_count, sl->ref_count,
1842
                                  &sl->gb, pps, sl->slice_type_nos,
1843
34091
                                  picture_structure, h->avctx);
1844
34091
    if (ret < 0)
1845
        return ret;
1846
1847
34091
    if (sl->slice_type_nos != AV_PICTURE_TYPE_I) {
1848
29872
       ret = ff_h264_decode_ref_pic_list_reordering(sl, h->avctx);
1849
29872
       if (ret < 0) {
1850
           sl->ref_count[1] = sl->ref_count[0] = 0;
1851
           return ret;
1852
       }
1853
    }
1854
1855
34091
    sl->pwt.use_weight = 0;
1856
102273
    for (i = 0; i < 2; i++) {
1857
68182
        sl->pwt.luma_weight_flag[i]   = 0;
1858
68182
        sl->pwt.chroma_weight_flag[i] = 0;
1859
    }
1860

34091
    if ((pps->weighted_pred && sl->slice_type_nos == AV_PICTURE_TYPE_P) ||
1861
32771
        (pps->weighted_bipred_idc == 1 &&
1862
278
         sl->slice_type_nos == AV_PICTURE_TYPE_B)) {
1863
1598
        ret = ff_h264_pred_weight_table(&sl->gb, sps, sl->ref_count,
1864
                                  sl->slice_type_nos, &sl->pwt,
1865
1598
                                  picture_structure, h->avctx);
1866
1598
        if (ret < 0)
1867
            return ret;
1868
    }
1869
1870
34091
    sl->explicit_ref_marking = 0;
1871
34091
    if (nal->ref_idc) {
1872
22746
        ret = ff_h264_decode_ref_pic_marking(sl, &sl->gb, nal, h->avctx);
1873

22746
        if (ret < 0 && (h->avctx->err_recognition & AV_EF_EXPLODE))
1874
            return AVERROR_INVALIDDATA;
1875
    }
1876
1877

34091
    if (sl->slice_type_nos != AV_PICTURE_TYPE_I && pps->cabac) {
1878
15727
        tmp = get_ue_golomb_31(&sl->gb);
1879
15727
        if (tmp > 2) {
1880
            av_log(h->avctx, AV_LOG_ERROR, "cabac_init_idc %u overflow\n", tmp);
1881
            return AVERROR_INVALIDDATA;
1882
        }
1883
15727
        sl->cabac_init_idc = tmp;
1884
    }
1885
1886
34091
    sl->last_qscale_diff = 0;
1887
34091
    tmp = pps->init_qp + (unsigned)get_se_golomb(&sl->gb);
1888
34091
    if (tmp > 51 + 6 * (sps->bit_depth_luma - 8)) {
1889
        av_log(h->avctx, AV_LOG_ERROR, "QP %u out of range\n", tmp);
1890
        return AVERROR_INVALIDDATA;
1891
    }
1892
34091
    sl->qscale       = tmp;
1893
34091
    sl->chroma_qp[0] = get_chroma_qp(pps, 0, sl->qscale);
1894
34091
    sl->chroma_qp[1] = get_chroma_qp(pps, 1, sl->qscale);
1895
    // FIXME qscale / qp ... stuff
1896
34091
    if (sl->slice_type == AV_PICTURE_TYPE_SP)
1897
        get_bits1(&sl->gb); /* sp_for_switch_flag */
1898
34091
    if (sl->slice_type == AV_PICTURE_TYPE_SP ||
1899
34091
        sl->slice_type == AV_PICTURE_TYPE_SI)
1900
        get_se_golomb(&sl->gb); /* slice_qs_delta */
1901
1902
34091
    sl->deblocking_filter     = 1;
1903
34091
    sl->slice_alpha_c0_offset = 0;
1904
34091
    sl->slice_beta_offset     = 0;
1905
34091
    if (pps->deblocking_filter_parameters_present) {
1906
19834
        tmp = get_ue_golomb_31(&sl->gb);
1907
19834
        if (tmp > 2) {
1908
            av_log(h->avctx, AV_LOG_ERROR,
1909
                   "deblocking_filter_idc %u out of range\n", tmp);
1910
            return AVERROR_INVALIDDATA;
1911
        }
1912
19834
        sl->deblocking_filter = tmp;
1913
19834
        if (sl->deblocking_filter < 2)
1914
17333
            sl->deblocking_filter ^= 1;  // 1<->0
1915
1916
19834
        if (sl->deblocking_filter) {
1917
12899
            int slice_alpha_c0_offset_div2 = get_se_golomb(&sl->gb);
1918
12899
            int slice_beta_offset_div2     = get_se_golomb(&sl->gb);
1919

12899
            if (slice_alpha_c0_offset_div2 >  6 ||
1920
12899
                slice_alpha_c0_offset_div2 < -6 ||
1921
12899
                slice_beta_offset_div2 >  6     ||
1922
                slice_beta_offset_div2 < -6) {
1923
                av_log(h->avctx, AV_LOG_ERROR,
1924
                       "deblocking filter parameters %d %d out of range\n",
1925
                       slice_alpha_c0_offset_div2, slice_beta_offset_div2);
1926
                return AVERROR_INVALIDDATA;
1927
            }
1928
12899
            sl->slice_alpha_c0_offset = slice_alpha_c0_offset_div2 * 2;
1929
12899
            sl->slice_beta_offset     = slice_beta_offset_div2 * 2;
1930
        }
1931
    }
1932
1933
34091
    return 0;
1934
}
1935
1936
/* do all the per-slice initialization needed before we can start decoding the
1937
 * actual MBs */
1938
34011
static int h264_slice_init(H264Context *h, H264SliceContext *sl,
1939
                           const H2645NAL *nal)
1940
{
1941
34011
    int i, j, ret = 0;
1942
1943

34011
    if (h->picture_idr && nal->type != H264_NAL_IDR_SLICE) {
1944
        av_log(h->avctx, AV_LOG_ERROR, "Invalid mix of IDR and non-IDR slices\n");
1945
        return AVERROR_INVALIDDATA;
1946
    }
1947
1948
    av_assert1(h->mb_num == h->mb_width * h->mb_height);
1949

34011
    if (sl->first_mb_addr << FIELD_OR_MBAFF_PICTURE(h) >= h->mb_num ||
1950
34011
        sl->first_mb_addr >= h->mb_num) {
1951
        av_log(h->avctx, AV_LOG_ERROR, "first_mb_in_slice overflow\n");
1952
        return AVERROR_INVALIDDATA;
1953
    }
1954
34011
    sl->resync_mb_x = sl->mb_x =  sl->first_mb_addr % h->mb_width;
1955
68022
    sl->resync_mb_y = sl->mb_y = (sl->first_mb_addr / h->mb_width) <<
1956

34011
                                 FIELD_OR_MBAFF_PICTURE(h);
1957
34011
    if (h->picture_structure == PICT_BOTTOM_FIELD)
1958
4196
        sl->resync_mb_y = sl->mb_y = sl->mb_y + 1;
1959
    av_assert1(sl->mb_y < h->mb_height);
1960
1961
34011
    ret = ff_h264_build_ref_list(h, sl);
1962
34011
    if (ret < 0)
1963
        return ret;
1964
1965
34011
    if (h->ps.pps->weighted_bipred_idc == 2 &&
1966
2421
        sl->slice_type_nos == AV_PICTURE_TYPE_B) {
1967
1589
        implicit_weight_table(h, sl, -1);
1968
1589
        if (FRAME_MBAFF(h)) {
1969
855
            implicit_weight_table(h, sl, 0);
1970
855
            implicit_weight_table(h, sl, 1);
1971
        }
1972
    }
1973
1974

34011
    if (sl->slice_type_nos == AV_PICTURE_TYPE_B && !sl->direct_spatial_mv_pred)
1975
7703
        ff_h264_direct_dist_scale_factor(h, sl);
1976
34011
    if (!h->setup_finished)
1977
34011
        ff_h264_direct_ref_list_init(h, sl);
1978
1979
34011
    if (h->avctx->skip_loop_filter >= AVDISCARD_ALL ||
1980
34011
        (h->avctx->skip_loop_filter >= AVDISCARD_NONKEY &&
1981
         h->nal_unit_type != H264_NAL_IDR_SLICE) ||
1982
34011
        (h->avctx->skip_loop_filter >= AVDISCARD_NONINTRA &&
1983
         sl->slice_type_nos != AV_PICTURE_TYPE_I) ||
1984
34011
        (h->avctx->skip_loop_filter >= AVDISCARD_BIDIR  &&
1985
         sl->slice_type_nos == AV_PICTURE_TYPE_B) ||
1986
34011
        (h->avctx->skip_loop_filter >= AVDISCARD_NONREF &&
1987
         nal->ref_idc == 0))
1988
        sl->deblocking_filter = 0;
1989
1990

34011
    if (sl->deblocking_filter == 1 && h->nb_slice_ctx > 1) {
1991
        if (h->avctx->flags2 & AV_CODEC_FLAG2_FAST) {
1992
            /* Cheat slightly for speed:
1993
             * Do not bother to deblock across slices. */
1994
            sl->deblocking_filter = 2;
1995
        } else {
1996
            h->postpone_filter = 1;
1997
        }
1998
    }
1999
34011
    sl->qp_thresh = 15 -
2000
34011
                   FFMIN(sl->slice_alpha_c0_offset, sl->slice_beta_offset) -
2001
34011
                   FFMAX3(0,
2002
                          h->ps.pps->chroma_qp_index_offset[0],
2003
34011
                          h->ps.pps->chroma_qp_index_offset[1]) +
2004
34011
                   6 * (h->ps.sps->bit_depth_luma - 8);
2005
2006
34011
    sl->slice_num       = ++h->current_slice;
2007
2008
34011
    if (sl->slice_num)
2009
34011
        h->slice_row[(sl->slice_num-1)&(MAX_SLICES-1)]= sl->resync_mb_y;
2010
34011
    if (   h->slice_row[sl->slice_num&(MAX_SLICES-1)] + 3 >= sl->resync_mb_y
2011
31343
        && h->slice_row[sl->slice_num&(MAX_SLICES-1)] <= sl->resync_mb_y
2012
23530
        && sl->slice_num >= MAX_SLICES) {
2013
        //in case of ASO this check needs to be updated depending on how we decide to assign slice numbers in this case
2014
        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);
2015
    }
2016
2017
102033
    for (j = 0; j < 2; j++) {
2018
        int id_list[16];
2019
68022
        int *ref2frm = h->ref2frm[sl->slice_num & (MAX_SLICES - 1)][j];
2020
1156374
        for (i = 0; i < 16; i++) {
2021
1088352
            id_list[i] = 60;
2022

1088352
            if (j < sl->list_count && i < sl->ref_count[j] &&
2023
133852
                sl->ref_list[j][i].parent->f->buf[0]) {
2024
                int k;
2025
133852
                AVBuffer *buf = sl->ref_list[j][i].parent->f->buf[0]->buffer;
2026
461407
                for (k = 0; k < h->short_ref_count; k++)
2027
459458
                    if (h->short_ref[k]->f->buf[0]->buffer == buf) {
2028
131903
                        id_list[i] = k;
2029
131903
                        break;
2030
                    }
2031
143968
                for (k = 0; k < h->long_ref_count; k++)
2032

11870
                    if (h->long_ref[k] && h->long_ref[k]->f->buf[0]->buffer == buf) {
2033
1754
                        id_list[i] = h->short_ref_count + k;
2034
1754
                        break;
2035
                    }
2036
            }
2037
        }
2038
2039
68022
        ref2frm[0] =
2040
68022
        ref2frm[1] = -1;
2041
1156374
        for (i = 0; i < 16; i++)
2042
1088352
            ref2frm[i + 2] = 4 * id_list[i] + (sl->ref_list[j][i].reference & 3);
2043
68022
        ref2frm[18 + 0] =
2044
68022
        ref2frm[18 + 1] = -1;
2045
2244726
        for (i = 16; i < 48; i++)
2046
2176704
            ref2frm[i + 4] = 4 * id_list[(i - 16) >> 1] +
2047
2176704
                             (sl->ref_list[j][i].reference & 3);
2048
    }
2049
2050
34011
    if (h->avctx->debug & FF_DEBUG_PICT_INFO) {
2051
        av_log(h->avctx, AV_LOG_DEBUG,
2052
               "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",
2053
               sl->slice_num,
2054
               (h->picture_structure == PICT_FRAME ? "F" : h->picture_structure == PICT_TOP_FIELD ? "T" : "B"),
2055
               sl->mb_y * h->mb_width + sl->mb_x,
2056
               av_get_picture_type_char(sl->slice_type),
2057
               sl->slice_type_fixed ? " fix" : "",
2058
               nal->type == H264_NAL_IDR_SLICE ? " IDR" : "",
2059
               h->poc.frame_num,
2060
               h->cur_pic_ptr->field_poc[0],
2061
               h->cur_pic_ptr->field_poc[1],
2062
               sl->ref_count[0], sl->ref_count[1],
2063
               sl->qscale,
2064
               sl->deblocking_filter,
2065
               sl->slice_alpha_c0_offset, sl->slice_beta_offset,
2066
               sl->pwt.use_weight,
2067
               sl->pwt.use_weight == 1 && sl->pwt.use_weight_chroma ? "c" : "",
2068
               sl->slice_type == AV_PICTURE_TYPE_B ? (sl->direct_spatial_mv_pred ? "SPAT" : "TEMP") : "");
2069
    }
2070
2071
34011
    return 0;
2072
}
2073
2074
34468
int ff_h264_queue_decode_slice(H264Context *h, const H2645NAL *nal)
2075
{
2076
34468
    H264SliceContext *sl = h->slice_ctx + h->nb_slice_ctx_queued;
2077

34468
    int first_slice = sl == h->slice_ctx && !h->current_slice;
2078
    int ret;
2079
2080
34468
    sl->gb = nal->gb;
2081
2082
34468
    ret = h264_slice_header_parse(h, sl, nal);
2083
34468
    if (ret < 0)
2084
377
        return ret;
2085
2086
    // discard redundant pictures
2087
34091
    if (sl->redundant_pic_count > 0) {
2088
        sl->ref_count[0] = sl->ref_count[1] = 0;
2089
        return 0;
2090
    }
2091
2092

34091
    if (sl->first_mb_addr == 0 || !h->current_slice) {
2093
25986
        if (h->setup_finished) {
2094
            av_log(h->avctx, AV_LOG_ERROR, "Too many fields\n");
2095
            return AVERROR_INVALIDDATA;
2096
        }
2097
    }
2098
2099
34091
    if (sl->first_mb_addr == 0) { // FIXME better field boundary detection
2100
25986
        if (h->current_slice) {
2101
            // this slice starts a new field
2102
            // first decode any pending queued slices
2103
193
            if (h->nb_slice_ctx_queued) {
2104
                H264SliceContext tmp_ctx;
2105
2106
                ret = ff_h264_execute_decode_slices(h);
2107
                if (ret < 0 && (h->avctx->err_recognition & AV_EF_EXPLODE))
2108
                    return ret;
2109
2110
                memcpy(&tmp_ctx, h->slice_ctx, sizeof(tmp_ctx));
2111
                memcpy(h->slice_ctx, sl, sizeof(tmp_ctx));
2112
                memcpy(sl, &tmp_ctx, sizeof(tmp_ctx));
2113
                sl = h->slice_ctx;
2114
            }
2115
2116

193
            if (h->cur_pic_ptr && FIELD_PICTURE(h) && h->first_field) {
2117
193
                ret = ff_h264_field_end(h, h->slice_ctx, 1);
2118
193
                if (ret < 0)
2119
                    return ret;
2120
            } else if (h->cur_pic_ptr && !FIELD_PICTURE(h) && !h->first_field && h->nal_unit_type  == H264_NAL_IDR_SLICE) {
2121
                av_log(h, AV_LOG_WARNING, "Broken frame packetizing\n");
2122
                ret = ff_h264_field_end(h, h->slice_ctx, 1);
2123
                ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX, 0);
2124
                ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX, 1);
2125
                h->cur_pic_ptr = NULL;
2126
                if (ret < 0)
2127
                    return ret;
2128
            } else
2129
                return AVERROR_INVALIDDATA;
2130
        }
2131
2132
25986
        if (!h->first_field) {
2133

22753
            if (h->cur_pic_ptr && !h->droppable) {
2134
299
                ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX,
2135
299
                                          h->picture_structure == PICT_BOTTOM_FIELD);
2136
            }
2137
22753
            h->cur_pic_ptr = NULL;
2138
        }
2139
    }
2140
2141
34091
    if (!h->current_slice)
2142
25986
        av_assert0(sl == h->slice_ctx);
2143
2144

34091
    if (h->current_slice == 0 && !h->first_field) {
2145
22753
        if (
2146

22753
            (h->avctx->skip_frame >= AVDISCARD_NONREF && !h->nal_ref_idc) ||
2147

22753
            (h->avctx->skip_frame >= AVDISCARD_BIDIR  && sl->slice_type_nos == AV_PICTURE_TYPE_B) ||
2148

22709
            (h->avctx->skip_frame >= AVDISCARD_NONINTRA && sl->slice_type_nos != AV_PICTURE_TYPE_I) ||
2149

22673
            (h->avctx->skip_frame >= AVDISCARD_NONKEY && h->nal_unit_type != H264_NAL_IDR_SLICE && h->sei.recovery_point.recovery_frame_cnt < 0) ||
2150
22673
            h->avctx->skip_frame >= AVDISCARD_ALL) {
2151
80
            return 0;
2152
        }
2153
    }
2154
2155
34011
    if (!first_slice) {
2156
8298
        const PPS *pps = (const PPS*)h->ps.pps_list[sl->pps_id]->data;
2157
2158
8298
        if (h->ps.pps->sps_id != pps->sps_id ||
2159
8298
            h->ps.pps->transform_8x8_mode != pps->transform_8x8_mode /*||
2160
            (h->setup_finished && h->ps.pps != pps)*/) {
2161
            av_log(h->avctx, AV_LOG_ERROR, "PPS changed between slices\n");
2162
            return AVERROR_INVALIDDATA;
2163
        }
2164
8298
        if (h->ps.sps != (const SPS*)h->ps.sps_list[h->ps.pps->sps_id]->data) {
2165
            av_log(h->avctx, AV_LOG_ERROR,
2166
               "SPS changed in the middle of the frame\n");
2167
            return AVERROR_INVALIDDATA;
2168
        }
2169
    }
2170
2171
34011
    if (h->current_slice == 0) {
2172
25906
        ret = h264_field_start(h, sl, nal, first_slice);
2173
25906
        if (ret < 0)
2174
            return ret;
2175
    } else {
2176
8105
        if (h->picture_structure != sl->picture_structure ||
2177
8105
            h->droppable         != (nal->ref_idc == 0)) {
2178
            av_log(h->avctx, AV_LOG_ERROR,
2179
                   "Changing field mode (%d -> %d) between slices is not allowed\n",
2180
                   h->picture_structure, sl->picture_structure);
2181
            return AVERROR_INVALIDDATA;
2182
8105
        } else if (!h->cur_pic_ptr) {
2183
            av_log(h->avctx, AV_LOG_ERROR,
2184
                   "unset cur_pic_ptr on slice %d\n",
2185
                   h->current_slice + 1);
2186
            return AVERROR_INVALIDDATA;
2187
        }
2188
    }
2189
2190
34011
    ret = h264_slice_init(h, sl, nal);
2191
34011
    if (ret < 0)
2192
        return ret;
2193
2194
34011
    h->nb_slice_ctx_queued++;
2195
2196
34011
    return 0;
2197
}
2198
2199
int ff_h264_get_slice_type(const H264SliceContext *sl)
2200
{
2201
    switch (sl->slice_type) {
2202
    case AV_PICTURE_TYPE_P:
2203
        return 0;
2204
    case AV_PICTURE_TYPE_B:
2205
        return 1;
2206
    case AV_PICTURE_TYPE_I:
2207
        return 2;
2208
    case AV_PICTURE_TYPE_SP:
2209
        return 3;
2210
    case AV_PICTURE_TYPE_SI:
2211
        return 4;
2212
    default:
2213
        return AVERROR_INVALIDDATA;
2214
    }
2215
}
2216
2217
10674266
static av_always_inline void fill_filter_caches_inter(const H264Context *h,
2218
                                                      H264SliceContext *sl,
2219
                                                      int mb_type, int top_xy,
2220
                                                      int left_xy[LEFT_MBS],
2221
                                                      int top_type,
2222
                                                      int left_type[LEFT_MBS],
2223
                                                      int mb_xy, int list)
2224
{
2225
10674266
    int b_stride = h->b_stride;
2226
10674266
    int16_t(*mv_dst)[2] = &sl->mv_cache[list][scan8[0]];
2227
10674266
    int8_t *ref_cache   = &sl->ref_cache[list][scan8[0]];
2228

10674266
    if (IS_INTER(mb_type) || IS_DIRECT(mb_type)) {
2229
10674266
        if (USES_LIST(top_type, list)) {
2230
8459942
            const int b_xy  = h->mb2b_xy[top_xy] + 3 * b_stride;
2231
8459942
            const int b8_xy = 4 * top_xy + 2;
2232
8459942
            const int *ref2frm = &h->ref2frm[h->slice_table[top_xy] & (MAX_SLICES - 1)][list][(MB_MBAFF(sl) ? 20 : 2)];
2233
8459942
            AV_COPY128(mv_dst - 1 * 8, h->cur_pic.motion_val[list][b_xy + 0]);
2234
8459942
            ref_cache[0 - 1 * 8] =
2235
8459942
            ref_cache[1 - 1 * 8] = ref2frm[h->cur_pic.ref_index[list][b8_xy + 0]];
2236
8459942
            ref_cache[2 - 1 * 8] =
2237
8459942
            ref_cache[3 - 1 * 8] = ref2frm[h->cur_pic.ref_index[list][b8_xy + 1]];
2238
        } else {
2239
2214324
            AV_ZERO128(mv_dst - 1 * 8);
2240
2214324
            AV_WN32A(&ref_cache[0 - 1 * 8], ((LIST_NOT_USED) & 0xFF) * 0x01010101u);
2241
        }
2242
2243
10674266
        if (!IS_INTERLACED(mb_type ^ left_type[LTOP])) {
2244
10274679
            if (USES_LIST(left_type[LTOP], list)) {
2245
8489061
                const int b_xy  = h->mb2b_xy[left_xy[LTOP]] + 3;
2246
8489061
                const int b8_xy = 4 * left_xy[LTOP] + 1;
2247
8489061
                const int *ref2frm = &h->ref2frm[h->slice_table[left_xy[LTOP]] & (MAX_SLICES - 1)][list][(MB_MBAFF(sl) ? 20 : 2)];
2248
8489061
                AV_COPY32(mv_dst - 1 +  0, h->cur_pic.motion_val[list][b_xy + b_stride * 0]);
2249
8489061
                AV_COPY32(mv_dst - 1 +  8, h->cur_pic.motion_val[list][b_xy + b_stride * 1]);
2250
8489061
                AV_COPY32(mv_dst - 1 + 16, h->cur_pic.motion_val[list][b_xy + b_stride * 2]);
2251
8489061
                AV_COPY32(mv_dst - 1 + 24, h->cur_pic.motion_val[list][b_xy + b_stride * 3]);
2252
8489061
                ref_cache[-1 +  0] =
2253
8489061
                ref_cache[-1 +  8] = ref2frm[h->cur_pic.ref_index[list][b8_xy + 2 * 0]];
2254
8489061
                ref_cache[-1 + 16] =
2255
8489061
                ref_cache[-1 + 24] = ref2frm[h->cur_pic.ref_index[list][b8_xy + 2 * 1]];
2256
            } else {
2257
1785618
                AV_ZERO32(mv_dst - 1 +  0);
2258
1785618
                AV_ZERO32(mv_dst - 1 +  8);
2259
1785618
                AV_ZERO32(mv_dst - 1 + 16);
2260
1785618
                AV_ZERO32(mv_dst - 1 + 24);
2261
1785618
                ref_cache[-1 +  0] =
2262
1785618
                ref_cache[-1 +  8] =
2263
1785618
                ref_cache[-1 + 16] =
2264
1785618
                ref_cache[-1 + 24] = LIST_NOT_USED;
2265
            }
2266
        }
2267
    }
2268
2269
10674266
    if (!USES_LIST(mb_type, list)) {
2270
1236726
        fill_rectangle(mv_dst, 4, 4, 8, pack16to32(0, 0), 4);
2271
1236726
        AV_WN32A(&ref_cache[0 * 8], ((LIST_NOT_USED) & 0xFF) * 0x01010101u);
2272
1236726
        AV_WN32A(&ref_cache[1 * 8], ((LIST_NOT_USED) & 0xFF) * 0x01010101u);
2273
1236726
        AV_WN32A(&ref_cache[2 * 8], ((LIST_NOT_USED) & 0xFF) * 0x01010101u);
2274
1236726
        AV_WN32A(&ref_cache[3 * 8], ((LIST_NOT_USED) & 0xFF) * 0x01010101u);
2275
1236726
        return;
2276
    }
2277
2278
    {
2279
9437540
        int8_t *ref = &h->cur_pic.ref_index[list][4 * mb_xy];
2280
9437540
        const int *ref2frm = &h->ref2frm[sl->slice_num & (MAX_SLICES - 1)][list][(MB_MBAFF(sl) ? 20 : 2)];
2281
9437540
        uint32_t ref01 = (pack16to32(ref2frm[ref[0]], ref2frm[ref[1]]) & 0x00FF00FF) * 0x0101;
2282
9437540
        uint32_t ref23 = (pack16to32(ref2frm[ref[2]], ref2frm[ref[3]]) & 0x00FF00FF) * 0x0101;
2283
9437540
        AV_WN32A(&ref_cache[0 * 8], ref01);
2284
9437540
        AV_WN32A(&ref_cache[1 * 8], ref01);
2285
9437540
        AV_WN32A(&ref_cache[2 * 8], ref23);
2286
9437540
        AV_WN32A(&ref_cache[3 * 8], ref23);
2287
    }
2288
2289
    {
2290
9437540
        int16_t(*mv_src)[2] = &h->cur_pic.motion_val[list][4 * sl->mb_x + 4 * sl->mb_y * b_stride];
2291
9437540
        AV_COPY128(mv_dst + 8 * 0, mv_src + 0 * b_stride);
2292
9437540
        AV_COPY128(mv_dst + 8 * 1, mv_src + 1 * b_stride);
2293
9437540
        AV_COPY128(mv_dst + 8 * 2, mv_src + 2 * b_stride);
2294
9437540
        AV_COPY128(mv_dst + 8 * 3, mv_src + 3 * b_stride);
2295
    }
2296
}
2297
2298
/**
2299
 * @return non zero if the loop filter can be skipped
2300
 */
2301
10755987
static int fill_filter_caches(const H264Context *h, H264SliceContext *sl, int mb_type)
2302
{
2303
10755987
    const int mb_xy = sl->mb_xy;
2304
    int top_xy, left_xy[LEFT_MBS];
2305
    int top_type, left_type[LEFT_MBS];
2306
    uint8_t *nnz;
2307
    uint8_t *nnz_cache;
2308
2309
10755987
    top_xy = mb_xy - (h->mb_stride << MB_FIELD(sl));
2310
2311
10755987
    left_xy[LBOT] = left_xy[LTOP] = mb_xy - 1;
2312
10755987
    if (FRAME_MBAFF(h)) {
2313
1814136
        const int left_mb_field_flag = IS_INTERLACED(h->cur_pic.mb_type[mb_xy - 1]);
2314
1814136
        const int curr_mb_field_flag = IS_INTERLACED(mb_type);
2315
1814136
        if (sl->mb_y & 1) {
2316
907068
            if (left_mb_field_flag != curr_mb_field_flag)
2317
189266
                left_xy[LTOP] -= h->mb_stride;
2318
        } else {
2319
907068
            if (curr_mb_field_flag)
2320
241257
                top_xy += h->mb_stride &
2321
241257
                          (((h->cur_pic.mb_type[top_xy] >> 7) & 1) - 1);
2322
907068
            if (left_mb_field_flag != curr_mb_field_flag)
2323
189266
                left_xy[LBOT] += h->mb_stride;
2324
        }
2325
    }
2326
2327
10755987
    sl->top_mb_xy        = top_xy;
2328
10755987
    sl->left_mb_xy[LTOP] = left_xy[LTOP];
2329
10755987
    sl->left_mb_xy[LBOT] = left_xy[LBOT];
2330
    {
2331
        /* For sufficiently low qp, filtering wouldn't do anything.
2332
         * This is a conservative estimate: could also check beta_offset
2333
         * and more accurate chroma_qp. */
2334
10755987
        int qp_thresh = sl->qp_thresh; // FIXME strictly we should store qp_thresh for each mb of a slice
2335
10755987
        int qp        = h->cur_pic.qscale_table[mb_xy];
2336
10755987
        if (qp <= qp_thresh &&
2337
992896
            (left_xy[LTOP] < 0 ||
2338

992896
             ((qp + h->cur_pic.qscale_table[left_xy[LTOP]] + 1) >> 1) <= qp_thresh) &&
2339
889380
            (top_xy < 0 ||
2340
889380
             ((qp + h->cur_pic.qscale_table[top_xy] + 1) >> 1) <= qp_thresh)) {
2341
861760
            if (!FRAME_MBAFF(h))
2342
639315
                return 1;
2343
222445
            if ((left_xy[LTOP] < 0 ||
2344
222351
                 ((qp + h->cur_pic.qscale_table[left_xy[LBOT]] + 1) >> 1) <= qp_thresh) &&
2345
222040
                (top_xy < h->mb_stride ||
2346
207469
                 ((qp + h->cur_pic.qscale_table[top_xy - h->mb_stride] + 1) >> 1) <= qp_thresh))
2347
205646
                return 1;
2348
        }
2349
    }
2350
2351
9911026
    top_type        = h->cur_pic.mb_type[top_xy];
2352
9911026
    left_type[LTOP] = h->cur_pic.mb_type[left_xy[LTOP]];
2353
9911026
    left_type[LBOT] = h->cur_pic.mb_type[left_xy[LBOT]];
2354
9911026
    if (sl->deblocking_filter == 2) {
2355
470376
        if (h->slice_table[top_xy] != sl->slice_num)
2356
56878
            top_type = 0;
2357
470376
        if (h->slice_table[left_xy[LBOT]] != sl->slice_num)
2358
13874
            left_type[LTOP] = left_type[LBOT] = 0;
2359
    } else {
2360
9440650
        if (h->slice_table[top_xy] == 0xFFFF)
2361
450203
            top_type = 0;
2362
9440650
        if (h->slice_table[left_xy[LBOT]] == 0xFFFF)
2363
289496
            left_type[LTOP] = left_type[LBOT] = 0;
2364
    }
2365
9911026
    sl->top_type        = top_type;
2366
9911026
    sl->left_type[LTOP] = left_type[LTOP];
2367
9911026
    sl->left_type[LBOT] = left_type[LBOT];
2368
2369
9911026
    if (IS_INTRA(mb_type))
2370
2860367
        return 0;
2371
2372
7050659
    fill_filter_caches_inter(h, sl, mb_type, top_xy, left_xy,
2373
                             top_type, left_type, mb_xy, 0);
2374
7050659
    if (sl->list_count == 2)
2375
3623607
        fill_filter_caches_inter(h, sl, mb_type, top_xy, left_xy,
2376
                                 top_type, left_type, mb_xy, 1);
2377
2378
7050659
    nnz       = h->non_zero_count[mb_xy];
2379
7050659
    nnz_cache = sl->non_zero_count_cache;
2380
7050659
    AV_COPY32(&nnz_cache[4 + 8 * 1], &nnz[0]);
2381
7050659
    AV_COPY32(&nnz_cache[4 + 8 * 2], &nnz[4]);
2382
7050659
    AV_COPY32(&nnz_cache[4 + 8 * 3], &nnz[8]);
2383
7050659
    AV_COPY32(&nnz_cache[4 + 8 * 4], &nnz[12]);
2384
7050659
    sl->cbp = h->cbp_table[mb_xy];
2385
2386
7050659
    if (top_type) {
2387
6645482
        nnz = h->non_zero_count[top_xy];
2388
6645482
        AV_COPY32(&nnz_cache[4 + 8 * 0], &nnz[3 * 4]);
2389
    }
2390
2391
7050659
    if (left_type[LTOP]) {
2392
6802837
        nnz = h->non_zero_count[left_xy[LTOP]];
2393
6802837
        nnz_cache[3 + 8 * 1] = nnz[3 + 0 * 4];
2394
6802837
        nnz_cache[3 + 8 * 2] = nnz[3 + 1 * 4];
2395
6802837
        nnz_cache[3 + 8 * 3] = nnz[3 + 2 * 4];
2396
6802837
        nnz_cache[3 + 8 * 4] = nnz[3 + 3 * 4];
2397
    }
2398
2399
    /* CAVLC 8x8dct requires NNZ values for residual decoding that differ
2400
     * from what the loop filter needs */
2401

7050659
    if (!CABAC(h) && h->ps.pps->transform_8x8_mode) {
2402
246512
        if (IS_8x8DCT(top_type)) {
2403
107880
            nnz_cache[4 + 8 * 0] =
2404
107880
            nnz_cache[5 + 8 * 0] = (h->cbp_table[top_xy] & 0x4000) >> 12;
2405
107880
            nnz_cache[6 + 8 * 0] =
2406
107880
            nnz_cache[7 + 8 * 0] = (h->cbp_table[top_xy] & 0x8000) >> 12;
2407
        }
2408
246512
        if (IS_8x8DCT(left_type[LTOP])) {
2409
110456
            nnz_cache[3 + 8 * 1] =
2410
110456
            nnz_cache[3 + 8 * 2] = (h->cbp_table[left_xy[LTOP]] & 0x2000) >> 12; // FIXME check MBAFF
2411
        }
2412
246512
        if (IS_8x8DCT(left_type[LBOT])) {
2413
110556
            nnz_cache[3 + 8 * 3] =
2414
110556
            nnz_cache[3 + 8 * 4] = (h->cbp_table[left_xy[LBOT]] & 0x8000) >> 12; // FIXME check MBAFF
2415
        }
2416
2417
246512
        if (IS_8x8DCT(mb_type)) {
2418
104923
            nnz_cache[scan8[0]] =
2419
104923
            nnz_cache[scan8[1]] =
2420
104923
            nnz_cache[scan8[2]] =
2421
104923
            nnz_cache[scan8[3]] = (sl->cbp & 0x1000) >> 12;
2422
2423
104923
            nnz_cache[scan8[0 + 4]] =
2424
104923
            nnz_cache[scan8[1 + 4]] =
2425
104923
            nnz_cache[scan8[2 + 4]] =
2426
104923
            nnz_cache[scan8[3 + 4]] = (sl->cbp & 0x2000) >> 12;
2427
2428
104923
            nnz_cache[scan8[0 + 8]] =
2429
104923
            nnz_cache[scan8[1 + 8]] =
2430
104923
            nnz_cache[scan8[2 + 8]] =
2431
104923
            nnz_cache[scan8[3 + 8]] = (sl->cbp & 0x4000) >> 12;
2432
2433
104923
            nnz_cache[scan8[0 + 12]] =
2434
104923
            nnz_cache[scan8[1 + 12]] =
2435
104923
            nnz_cache[scan8[2 + 12]] =
2436
104923
            nnz_cache[scan8[3 + 12]] = (sl->cbp & 0x8000) >> 12;
2437
        }
2438
    }
2439
2440
7050659
    return 0;
2441
}
2442
2443
358708
static void loop_filter(const H264Context *h, H264SliceContext *sl, int start_x, int end_x)
2444
{
2445
    uint8_t *dest_y, *dest_cb, *dest_cr;
2446
    int linesize, uvlinesize, mb_x, mb_y;
2447
358708
    const int end_mb_y       = sl->mb_y + FRAME_MBAFF(h);
2448
358708
    const int old_slice_type = sl->slice_type;
2449
358708
    const int pixel_shift    = h->pixel_shift;
2450
358708
    const int block_h        = 16 >> h->chroma_y_shift;
2451
2452
358708
    if (h->postpone_filter)
2453
        return;
2454
2455
358708
    if (sl->deblocking_filter) {
2456
10138465
        for (mb_x = start_x; mb_x < end_x; mb_x++)
2457
20604906
            for (mb_y = end_mb_y - FRAME_MBAFF(h); mb_y <= end_mb_y; mb_y++) {
2458
                int mb_xy, mb_type;
2459
10755987
                mb_xy         = sl->mb_xy = mb_x + mb_y * h->mb_stride;
2460
10755987
                mb_type       = h->cur_pic.mb_type[mb_xy];
2461
2462
10755987
                if (FRAME_MBAFF(h))
2463
1814136
                    sl->mb_mbaff               =
2464
1814136
                    sl->mb_field_decoding_flag = !!IS_INTERLACED(mb_type);
2465
2466
10755987
                sl->mb_x = mb_x;
2467
10755987
                sl->mb_y = mb_y;
2468
10755987
                dest_y  = h->cur_pic.f->data[0] +
2469
10755987
                          ((mb_x << pixel_shift) + mb_y * sl->linesize) * 16;
2470
21511974
                dest_cb = h->cur_pic.f->data[1] +
2471
10755987
                          (mb_x << pixel_shift) * (8 << CHROMA444(h)) +
2472
10755987
                          mb_y * sl->uvlinesize * block_h;
2473
21511974
                dest_cr = h->cur_pic.f->data[2] +
2474
10755987
                          (mb_x << pixel_shift) * (8 << CHROMA444(h)) +
2475
10755987
                          mb_y * sl->uvlinesize * block_h;
2476
                // FIXME simplify above
2477
2478
10755987
                if (MB_FIELD(sl)) {
2479
3606552
                    linesize   = sl->mb_linesize   = sl->linesize   * 2;
2480
3606552
                    uvlinesize = sl->mb_uvlinesize = sl->uvlinesize * 2;
2481
3606552
                    if (mb_y & 1) { // FIXME move out of this function?
2482
1802577
                        dest_y  -= sl->linesize   * 15;
2483
1802577
                        dest_cb -= sl->uvlinesize * (block_h - 1);
2484
1802577
                        dest_cr -= sl->uvlinesize * (block_h - 1);
2485
                    }
2486
                } else {
2487
7149435
                    linesize   = sl->mb_linesize   = sl->linesize;
2488
7149435
                    uvlinesize = sl->mb_uvlinesize = sl->uvlinesize;
2489
                }
2490
10755987
                backup_mb_border(h, sl, dest_y, dest_cb, dest_cr, linesize,
2491
                                 uvlinesize, 0);
2492
10755987
                if (fill_filter_caches(h, sl, mb_type))
2493
844961
                    continue;
2494
9911026
                sl->chroma_qp[0] = get_chroma_qp(h->ps.pps, 0, h->cur_pic.qscale_table[mb_xy]);
2495
9911026
                sl->chroma_qp[1] = get_chroma_qp(h->ps.pps, 1, h->cur_pic.qscale_table[mb_xy]);
2496
2497
9911026
                if (FRAME_MBAFF(h)) {
2498
1608490
                    ff_h264_filter_mb(h, sl, mb_x, mb_y, dest_y, dest_cb, dest_cr,
2499
                                      linesize, uvlinesize);
2500
                } else {
2501
8302536
                    ff_h264_filter_mb_fast(h, sl, mb_x, mb_y, dest_y, dest_cb,
2502
                                           dest_cr, linesize, uvlinesize);
2503
                }
2504
            }
2505
    }
2506
358708
    sl->slice_type  = old_slice_type;
2507
358708
    sl->mb_x         = end_x;
2508
358708
    sl->mb_y         = end_mb_y - FRAME_MBAFF(h);
2509
358708
    sl->chroma_qp[0] = get_chroma_qp(h->ps.pps, 0, sl->qscale);
2510
358708
    sl->chroma_qp[1] = get_chroma_qp(h->ps.pps, 1, sl->qscale);
2511
}
2512
2513
22884
static void predict_field_decoding_flag(const H264Context *h, H264SliceContext *sl)
2514
{
2515
22884
    const int mb_xy = sl->mb_x + sl->mb_y * h->mb_stride;
2516
45768
    int mb_type     = (h->slice_table[mb_xy - 1] == sl->slice_num) ?
2517
45768
                      h->cur_pic.mb_type[mb_xy - 1] :
2518
22884
                      (h->slice_table[mb_xy - h->mb_stride] == sl->slice_num) ?
2519
22748
                      h->cur_pic.mb_type[mb_xy - h->mb_stride] : 0;
2520
22884
    sl->mb_mbaff    = sl->mb_field_decoding_flag = IS_INTERLACED(mb_type) ? 1 : 0;
2521
22884
}
2522
2523
/**
2524
 * Draw edges and report progress for the last MB row.
2525
 */
2526
354613
static void decode_finish_row(const H264Context *h, H264SliceContext *sl)
2527
{
2528
354613
    int top            = 16 * (sl->mb_y      >> FIELD_PICTURE(h));
2529
354613
    int pic_height     = 16 *  h->mb_height >> FIELD_PICTURE(h);
2530
354613
    int height         =  16      << FRAME_MBAFF(h);
2531
354613
    int deblock_border = (16 + 4) << FRAME_MBAFF(h);
2532
2533
354613
    if (sl->deblocking_filter) {
2534
286463
        if ((top + height) >= pic_height)
2535
20325
            height += deblock_border;
2536
286463
        top -= deblock_border;
2537
    }
2538
2539

354613
    if (top >= pic_height || (top + height) < 0)
2540
20326
        return;
2541
2542
334287
    height = FFMIN(height, pic_height - top);
2543
334287
    if (top < 0) {
2544
20326
        height = top + height;
2545
20326
        top    = 0;
2546
    }
2547
2548
334287
    ff_h264_draw_horiz_band(h, sl, top, height);
2549
2550

334287
    if (h->droppable || sl->h264->slice_ctx[0].er.error_occurred)
2551
119504
        return;
2552
2553
214783
    ff_thread_report_progress(&h->cur_pic_ptr->tf, top + height - 1,
2554
214783
                              h->picture_structure == PICT_BOTTOM_FIELD);
2555
}
2556
2557
34011
static void er_add_slice(H264SliceContext *sl,
2558
                         int startx, int starty,
2559
                         int endx, int endy, int status)
2560
{
2561
34011
    if (!sl->h264->enable_er)
2562
1200
        return;
2563
2564
    if (CONFIG_ERROR_RESILIENCE) {
2565
32811
        ERContext *er = &sl->h264->slice_ctx[0].er;
2566
2567
32811
        ff_er_add_slice(er, startx, starty, endx, endy, status);
2568
    }
2569
}
2570
2571
34011
static int decode_slice(struct AVCodecContext *avctx, void *arg)
2572
{
2573
34011
    H264SliceContext *sl = arg;
2574
34011
    const H264Context *h = sl->h264;
2575
34011
    int lf_x_start = sl->mb_x;
2576
34011
    int orig_deblock = sl->deblocking_filter;
2577
    int ret;
2578
2579
34011
    sl->linesize   = h->cur_pic_ptr->f->linesize[0];
2580
34011
    sl->uvlinesize = h->cur_pic_ptr->f->linesize[1];
2581
2582
34011
    ret = alloc_scratch_buffers(sl, sl->linesize);
2583
34011
    if (ret < 0)
2584
        return ret;
2585
2586
34011
    sl->mb_skip_run = -1;
2587
2588
34011
    av_assert0(h->block_offset[15] == (4 * ((scan8[15] - scan8[0]) & 7) << h->pixel_shift) + 4 * sl->linesize * ((scan8[15] - scan8[0]) >> 3));
2589
2590
34011
    if (h->postpone_filter)
2591
        sl->deblocking_filter = 0;
2592
2593

34011
    sl->is_complex = FRAME_MBAFF(h) || h->picture_structure != PICT_FRAME ||
2594
                     (CONFIG_GRAY && (h->flags & AV_CODEC_FLAG_GRAY));
2595
2596

34011
    if (!(h->avctx->active_thread_type & FF_THREAD_SLICE) && h->picture_structure == PICT_FRAME && h->slice_ctx[0].er.error_status_table) {
2597
24414
        const int start_i  = av_clip(sl->resync_mb_x + sl->resync_mb_y * h->mb_width, 0, h->mb_num - 1);
2598
24414
        if (start_i) {
2599
5278
            int prev_status = h->slice_ctx[0].er.error_status_table[h->slice_ctx[0].er.mb_index2xy[start_i - 1]];
2600
5278
            prev_status &= ~ VP_START;
2601
5278
            if (prev_status != (ER_MV_END | ER_DC_END | ER_AC_END))
2602
                h->slice_ctx[0].er.error_occurred = 1;
2603
        }
2604
    }
2605
2606
34011
    if (h->ps.pps->cabac) {
2607
        /* realign */
2608
18088
        align_get_bits(&sl->gb);
2609
2610
        /* init cabac */
2611
36176
        ret = ff_init_cabac_decoder(&sl->cabac,
2612
18088
                              sl->gb.buffer + get_bits_count(&sl->gb) / 8,
2613
18088
                              (get_bits_left(&sl->gb) + 7) / 8);
2614
18088
        if (ret < 0)
2615
            return ret;
2616
2617
18088
        ff_h264_init_cabac_states(h, sl);
2618
2619
7679275
        for (;;) {
2620
            int ret, eos;
2621
7697363
            if (sl->mb_x + sl->mb_y * h->mb_width >= sl->next_slice_idx) {
2622
                av_log(h->avctx, AV_LOG_ERROR, "Slice overlaps with next at %d\n",
2623
                       sl->next_slice_idx);
2624
                er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y, sl->mb_x,
2625
                             sl->mb_y, ER_MB_ERROR);
2626
                return AVERROR_INVALIDDATA;
2627
            }
2628
2629
7697363
            ret = ff_h264_decode_mb_cabac(h, sl);
2630
2631
7697363
            if (ret >= 0)
2632
7697362
                ff_h264_hl_decode_mb(h, sl);
2633
2634
            // FIXME optimal? or let mb_decode decode 16x32 ?
2635

7697363
            if (ret >= 0 && FRAME_MBAFF(h)) {
2636
798720
                sl->mb_y++;
2637
2638
798720
                ret = ff_h264_decode_mb_cabac(h, sl);
2639
2640
798720
                if (ret >= 0)
2641
798720
                    ff_h264_hl_decode_mb(h, sl);
2642
798720
                sl->mb_y--;
2643
            }
2644
7697363
            eos = get_cabac_terminate(&sl->cabac);
2645
2646
7697363
            if ((h->workaround_bugs & FF_BUG_TRUNCATED) &&
2647
                sl->cabac.bytestream > sl->cabac.bytestream_end + 2) {
2648
                er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y, sl->mb_x - 1,
2649
                             sl->mb_y, ER_MB_END);
2650
                if (sl->mb_x >= lf_x_start)
2651
                    loop_filter(h, sl, lf_x_start, sl->mb_x + 1);
2652
                goto finish;
2653
            }
2654
7697363
            if (sl->cabac.bytestream > sl->cabac.bytestream_end + 2 )
2655
1
                av_log(h->avctx, AV_LOG_DEBUG, "bytestream overread %"PTRDIFF_SPECIFIER"\n", sl->cabac.bytestream_end - sl->cabac.bytestream);
2656

7697363
            if (ret < 0 || sl->cabac.bytestream > sl->cabac.bytestream_end + 4) {
2657
2
                av_log(h->avctx, AV_LOG_ERROR,
2658
                       "error while decoding MB %d %d, bytestream %"PTRDIFF_SPECIFIER"\n",
2659
                       sl->mb_x, sl->mb_y,
2660
2
                       sl->cabac.bytestream_end - sl->cabac.bytestream);
2661
2
                er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y, sl->mb_x,
2662
                             sl->mb_y, ER_MB_ERROR);
2663
2
                return AVERROR_INVALIDDATA;
2664
            }
2665
2666
7697361
            if (++sl->mb_x >= h->mb_width) {
2667
201984
                loop_filter(h, sl, lf_x_start, sl->mb_x);
2668
201984
                sl->mb_x = lf_x_start = 0;
2669
201984
                decode_finish_row(h, sl);
2670
201984
                ++sl->mb_y;
2671

201984
                if (FIELD_OR_MBAFF_PICTURE(h)) {
2672
70062
                    ++sl->mb_y;
2673

70062
                    if (FRAME_MBAFF(h) && sl->mb_y < h->mb_height)
2674
17906
                        predict_field_decoding_flag(h, sl);
2675
                }
2676
            }
2677
2678

7697361
            if (eos || sl->mb_y >= h->mb_height) {
2679
                ff_tlog(h->avctx, "slice end %d %d\n",
2680
                        get_bits_count(&sl->gb), sl->gb.size_in_bits);
2681
18086
                er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y, sl->mb_x - 1,
2682
                             sl->mb_y, ER_MB_END);
2683
18086
                if (sl->mb_x > lf_x_start)
2684
1382
                    loop_filter(h, sl, lf_x_start, sl->mb_x);
2685
18086
                goto finish;
2686
            }
2687
        }
2688
    } else {
2689
4076548
        for (;;) {
2690
            int ret;
2691
2692
4092471
            if (sl->mb_x + sl->mb_y * h->mb_width >= sl->next_slice_idx) {
2693
                av_log(h->avctx, AV_LOG_ERROR, "Slice overlaps with next at %d\n",
2694
                       sl->next_slice_idx);
2695
                er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y, sl->mb_x,
2696
                             sl->mb_y, ER_MB_ERROR);
2697
                return AVERROR_INVALIDDATA;
2698
            }
2699
2700
4092471
            ret = ff_h264_decode_mb_cavlc(h, sl);
2701
2702
4092471
            if (ret >= 0)
2703
4092471
                ff_h264_hl_decode_mb(h, sl);
2704
2705
            // FIXME optimal? or let mb_decode decode 16x32 ?
2706

4092471
            if (ret >= 0 && FRAME_MBAFF(h)) {
2707
254472
                sl->mb_y++;
2708
254472
                ret = ff_h264_decode_mb_cavlc(h, sl);
2709
2710
254472
                if (ret >= 0)
2711
254472
                    ff_h264_hl_decode_mb(h, sl);
2712
254472
                sl->mb_y--;
2713
            }
2714
2715
4092471
            if (ret < 0) {
2716
                av_log(h->avctx, AV_LOG_ERROR,
2717
                       "error while decoding MB %d %d\n", sl->mb_x, sl->mb_y);
2718
                er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y, sl->mb_x,
2719
                             sl->mb_y, ER_MB_ERROR);
2720
                return ret;
2721
            }
2722
2723
4092471
            if (++sl->mb_x >= h->mb_width) {
2724
152629
                loop_filter(h, sl, lf_x_start, sl->mb_x);
2725
152629
                sl->mb_x = lf_x_start = 0;
2726
152629
                decode_finish_row(h, sl);
2727
152629
                ++sl->mb_y;
2728

152629
                if (FIELD_OR_MBAFF_PICTURE(h)) {
2729
32143
                    ++sl->mb_y;
2730

32143
                    if (FRAME_MBAFF(h) && sl->mb_y < h->mb_height)
2731
4978
                        predict_field_decoding_flag(h, sl);
2732
                }
2733
152629
                if (sl->mb_y >= h->mb_height) {
2734
                    ff_tlog(h->avctx, "slice end %d %d\n",
2735
                            get_bits_count(&sl->gb), sl->gb.size_in_bits);
2736
2737
12346
                    if (   get_bits_left(&sl->gb) == 0
2738
                        || get_bits_left(&sl->gb) > 0 && !(h->avctx->err_recognition & AV_EF_AGGRESSIVE)) {
2739
12346
                        er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y,
2740
12346
                                     sl->mb_x - 1, sl->mb_y, ER_MB_END);
2741
2742
12346
                        goto finish;
2743
                    } else {
2744
                        er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y,
2745
                                     sl->mb_x, sl->mb_y, ER_MB_END);
2746
2747
                        return AVERROR_INVALIDDATA;
2748
                    }
2749
                }
2750
            }
2751
2752

4080125
            if (get_bits_left(&sl->gb) <= 0 && sl->mb_skip_run <= 0) {
2753
                ff_tlog(h->avctx, "slice end %d %d\n",
2754
                        get_bits_count(&sl->gb), sl->gb.size_in_bits);
2755
2756
3577
                if (get_bits_left(&sl->gb) == 0) {
2757
3577
                    er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y,
2758
3577
                                 sl->mb_x - 1, sl->mb_y, ER_MB_END);
2759
3577
                    if (sl->mb_x > lf_x_start)
2760
2713
                        loop_filter(h, sl, lf_x_start, sl->mb_x);
2761
2762
3577
                    goto finish;
2763
                } else {
2764
                    er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y, sl->mb_x,
2765
                                 sl->mb_y, ER_MB_ERROR);
2766
2767
                    return AVERROR_INVALIDDATA;
2768
                }
2769
            }
2770
        }
2771
    }
2772
2773
34009
finish:
2774
34009
    sl->deblocking_filter = orig_deblock;
2775
34009
    return 0;
2776
}
2777
2778
/**
2779
 * Call decode_slice() for each context.
2780
 *
2781
 * @param h h264 master context
2782
 */
2783
60083
int ff_h264_execute_decode_slices(H264Context *h)
2784
{
2785
60083
    AVCodecContext *const avctx = h->avctx;
2786
    H264SliceContext *sl;
2787
60083
    int context_count = h->nb_slice_ctx_queued;
2788
60083
    int ret = 0;
2789
    int i, j;
2790
2791
60083
    h->slice_ctx[0].next_slice_idx = INT_MAX;
2792
2793

60083
    if (h->avctx->hwaccel || context_count < 1)
2794
26522
        return 0;
2795
2796

33561
    av_assert0(context_count && h->slice_ctx[context_count - 1].mb_y < h->mb_height);
2797
2798
33561
    if (context_count == 1) {
2799
2800
33111
        h->slice_ctx[0].next_slice_idx = h->mb_width * h->mb_height;
2801
33111
        h->postpone_filter = 0;
2802
2803
33111
        ret = decode_slice(avctx, &h->slice_ctx[0]);
2804
33111
        h->mb_y = h->slice_ctx[0].mb_y;
2805
33111
        if (ret < 0)
2806
2
            goto finish;
2807
    } else {
2808
450
        av_assert0(context_count > 0);
2809
1350
        for (i = 0; i < context_count; i++) {
2810
900
            int next_slice_idx = h->mb_width * h->mb_height;
2811
            int slice_idx;
2812
2813
900
            sl                 = &h->slice_ctx[i];
2814
            if (CONFIG_ERROR_RESILIENCE) {
2815
900
                sl->er.error_count = 0;
2816
            }
2817
2818
            /* make sure none of those slices overlap */
2819
900
            slice_idx = sl->mb_y * h->mb_width + sl->mb_x;
2820
2700
            for (j = 0; j < context_count; j++) {
2821
1800
                H264SliceContext *sl2 = &h->slice_ctx[j];
2822
1800
                int        slice_idx2 = sl2->mb_y * h->mb_width + sl2->mb_x;
2823
2824

1800
                if (i == j || slice_idx2 < slice_idx)
2825
1350
                    continue;
2826
450
                next_slice_idx = FFMIN(next_slice_idx, slice_idx2);
2827
            }
2828
900
            sl->next_slice_idx = next_slice_idx;
2829
        }
2830
2831
450
        avctx->execute(avctx, decode_slice, h->slice_ctx,
2832
                       NULL, context_count, sizeof(h->slice_ctx[0]));
2833
2834
        /* pull back stuff from slices to master context */
2835
450
        sl                   = &h->slice_ctx[context_count - 1];
2836
450
        h->mb_y              = sl->mb_y;
2837
        if (CONFIG_ERROR_RESILIENCE) {
2838
900
            for (i = 1; i < context_count; i++)
2839
450
                h->slice_ctx[0].er.error_count += h->slice_ctx[i].er.error_count;
2840
        }
2841
2842
450
        if (h->postpone_filter) {
2843
            h->postpone_filter = 0;
2844
2845
            for (i = 0; i < context_count; i++) {
2846
                int y_end, x_end;
2847
2848
                sl = &h->slice_ctx[i];
2849
                y_end = FFMIN(sl->mb_y + 1, h->mb_height);
2850
                x_end = (sl->mb_y >= h->mb_height) ? h->mb_width : sl->mb_x;
2851
2852
                for (j = sl->resync_mb_y; j < y_end; j += 1 + FIELD_OR_MBAFF_PICTURE(h)) {
2853
                    sl->mb_y = j;
2854
                    loop_filter(h, sl, j > sl->resync_mb_y ? 0 : sl->resync_mb_x,
2855
                                j == y_end - 1 ? x_end : h->mb_width);
2856
                }
2857
            }
2858
        }
2859
    }
2860
2861
450
finish:
2862
33561
    h->nb_slice_ctx_queued = 0;
2863
33561
    return ret;
2864
}