GCC Code Coverage Report
Directory: ../../../ffmpeg/ Exec Total Coverage
File: src/libavcodec/h264dec.c Lines: 431 597 72.2 %
Date: 2020-09-21 17:35:45 Branches: 248 409 60.6 %

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
#define UNCHECKED_BITSTREAM_READER 1
29
30
#include "libavutil/avassert.h"
31
#include "libavutil/display.h"
32
#include "libavutil/imgutils.h"
33
#include "libavutil/opt.h"
34
#include "libavutil/stereo3d.h"
35
#include "libavutil/video_enc_params.h"
36
37
#include "internal.h"
38
#include "bytestream.h"
39
#include "cabac.h"
40
#include "cabac_functions.h"
41
#include "error_resilience.h"
42
#include "avcodec.h"
43
#include "h264.h"
44
#include "h264dec.h"
45
#include "h2645_parse.h"
46
#include "h264data.h"
47
#include "h264chroma.h"
48
#include "h264_mvpred.h"
49
#include "h264_ps.h"
50
#include "golomb.h"
51
#include "hwconfig.h"
52
#include "mathops.h"
53
#include "me_cmp.h"
54
#include "mpegutils.h"
55
#include "profiles.h"
56
#include "rectangle.h"
57
#include "thread.h"
58
59
const uint16_t ff_h264_mb_sizes[4] = { 256, 384, 512, 768 };
60
61
10495
int avpriv_h264_has_num_reorder_frames(AVCodecContext *avctx)
62
{
63
10495
    H264Context *h = avctx->priv_data;
64

10495
    return h && h->ps.sps ? h->ps.sps->num_reorder_frames : 0;
65
}
66
67
static void h264_er_decode_mb(void *opaque, int ref, int mv_dir, int mv_type,
68
                              int (*mv)[2][4][2],
69
                              int mb_x, int mb_y, int mb_intra, int mb_skipped)
70
{
71
    H264Context *h = opaque;
72
    H264SliceContext *sl = &h->slice_ctx[0];
73
74
    sl->mb_x = mb_x;
75
    sl->mb_y = mb_y;
76
    sl->mb_xy = mb_x + mb_y * h->mb_stride;
77
    memset(sl->non_zero_count_cache, 0, sizeof(sl->non_zero_count_cache));
78
    av_assert1(ref >= 0);
79
    /* FIXME: It is possible albeit uncommon that slice references
80
     * differ between slices. We take the easy approach and ignore
81
     * it for now. If this turns out to have any relevance in
82
     * practice then correct remapping should be added. */
83
    if (ref >= sl->ref_count[0])
84
        ref = 0;
85
    if (!sl->ref_list[0][ref].data[0]) {
86
        av_log(h->avctx, AV_LOG_DEBUG, "Reference not available for error concealing\n");
87
        ref = 0;
88
    }
89
    if ((sl->ref_list[0][ref].reference&3) != 3) {
90
        av_log(h->avctx, AV_LOG_DEBUG, "Reference invalid\n");
91
        return;
92
    }
93
    fill_rectangle(&h->cur_pic.ref_index[0][4 * sl->mb_xy],
94
                   2, 2, 2, ref, 1);
95
    fill_rectangle(&sl->ref_cache[0][scan8[0]], 4, 4, 8, ref, 1);
96
    fill_rectangle(sl->mv_cache[0][scan8[0]], 4, 4, 8,
97
                   pack16to32((*mv)[0][0][0], (*mv)[0][0][1]), 4);
98
    sl->mb_mbaff =
99
    sl->mb_field_decoding_flag = 0;
100
    ff_h264_hl_decode_mb(h, &h->slice_ctx[0]);
101
}
102
103
334304
void ff_h264_draw_horiz_band(const H264Context *h, H264SliceContext *sl,
104
                             int y, int height)
105
{
106
334304
    AVCodecContext *avctx = h->avctx;
107
334304
    const AVFrame   *src  = h->cur_pic.f;
108
334304
    const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(avctx->pix_fmt);
109
334304
    int vshift = desc->log2_chroma_h;
110
334304
    const int field_pic = h->picture_structure != PICT_FRAME;
111
334304
    if (field_pic) {
112
72339
        height <<= 1;
113
72339
        y      <<= 1;
114
    }
115
116
334304
    height = FFMIN(height, avctx->height - y);
117
118

334304
    if (field_pic && h->first_field && !(avctx->slice_flags & SLICE_FLAG_ALLOW_FIELD))
119
36196
        return;
120
121
298108
    if (avctx->draw_horiz_band) {
122
        int offset[AV_NUM_DATA_POINTERS];
123
        int i;
124
125
        offset[0] = y * src->linesize[0];
126
        offset[1] =
127
        offset[2] = (y >> vshift) * src->linesize[1];
128
        for (i = 3; i < AV_NUM_DATA_POINTERS; i++)
129
            offset[i] = 0;
130
131
        emms_c();
132
133
        avctx->draw_horiz_band(avctx, src, offset,
134
                               y, h->picture_structure, height);
135
    }
136
}
137
138
1072
void ff_h264_free_tables(H264Context *h)
139
{
140
    int i;
141
142
1072
    av_freep(&h->intra4x4_pred_mode);
143
1072
    av_freep(&h->chroma_pred_mode_table);
144
1072
    av_freep(&h->cbp_table);
145
1072
    av_freep(&h->mvd_table[0]);
146
1072
    av_freep(&h->mvd_table[1]);
147
1072
    av_freep(&h->direct_table);
148
1072
    av_freep(&h->non_zero_count);
149
1072
    av_freep(&h->slice_table_base);
150
1072
    h->slice_table = NULL;
151
1072
    av_freep(&h->list_counts);
152
153
1072
    av_freep(&h->mb2b_xy);
154
1072
    av_freep(&h->mb2br_xy);
155
156
1072
    av_buffer_pool_uninit(&h->qscale_table_pool);
157
1072
    av_buffer_pool_uninit(&h->mb_type_pool);
158
1072
    av_buffer_pool_uninit(&h->motion_val_pool);
159
1072
    av_buffer_pool_uninit(&h->ref_index_pool);
160
161
2146
    for (i = 0; i < h->nb_slice_ctx; i++) {
162
1074
        H264SliceContext *sl = &h->slice_ctx[i];
163
164
1074
        av_freep(&sl->dc_val_base);
165
1074
        av_freep(&sl->er.mb_index2xy);
166
1074
        av_freep(&sl->er.error_status_table);
167
1074
        av_freep(&sl->er.er_temp_buffer);
168
169
1074
        av_freep(&sl->bipred_scratchpad);
170
1074
        av_freep(&sl->edge_emu_buffer);
171
1074
        av_freep(&sl->top_borders[0]);
172
1074
        av_freep(&sl->top_borders[1]);
173
174
1074
        sl->bipred_scratchpad_allocated = 0;
175
1074
        sl->edge_emu_buffer_allocated   = 0;
176
1074
        sl->top_borders_allocated[0]    = 0;
177
1074
        sl->top_borders_allocated[1]    = 0;
178
    }
179
1072
}
180
181
534
int ff_h264_alloc_tables(H264Context *h)
182
{
183
534
    const int big_mb_num = h->mb_stride * (h->mb_height + 1);
184
534
    const int row_mb_num = 2*h->mb_stride*FFMAX(h->nb_slice_ctx, 1);
185
534
    const int st_size = big_mb_num + h->mb_stride;
186
    int x, y;
187
188
534
    if (!FF_ALLOCZ_TYPED_ARRAY(h->intra4x4_pred_mode,     row_mb_num * 8)  ||
189
534
        !FF_ALLOCZ_TYPED_ARRAY(h->non_zero_count,         big_mb_num)      ||
190
534
        !FF_ALLOCZ_TYPED_ARRAY(h->slice_table_base,       st_size)         ||
191
534
        !FF_ALLOCZ_TYPED_ARRAY(h->cbp_table,              big_mb_num)      ||
192
534
        !FF_ALLOCZ_TYPED_ARRAY(h->chroma_pred_mode_table, big_mb_num)      ||
193
534
        !FF_ALLOCZ_TYPED_ARRAY(h->mvd_table[0],           row_mb_num * 8)  ||
194
534
        !FF_ALLOCZ_TYPED_ARRAY(h->mvd_table[1],           row_mb_num * 8)  ||
195
534
        !FF_ALLOCZ_TYPED_ARRAY(h->direct_table,           big_mb_num * 4)  ||
196
534
        !FF_ALLOCZ_TYPED_ARRAY(h->list_counts,            big_mb_num)      ||
197
534
        !FF_ALLOCZ_TYPED_ARRAY(h->mb2b_xy,                big_mb_num)      ||
198
534
        !FF_ALLOCZ_TYPED_ARRAY(h->mb2br_xy,               big_mb_num))
199
        return AVERROR(ENOMEM);
200
534
    h->slice_ctx[0].intra4x4_pred_mode = h->intra4x4_pred_mode;
201
534
    h->slice_ctx[0].mvd_table[0] = h->mvd_table[0];
202
534
    h->slice_ctx[0].mvd_table[1] = h->mvd_table[1];
203
534
    memset(h->slice_table_base, -1,
204
           st_size * sizeof(*h->slice_table_base));
205
534
    h->slice_table = h->slice_table_base + h->mb_stride * 2 + 1;
206
12952
    for (y = 0; y < h->mb_height; y++)
207
697127
        for (x = 0; x < h->mb_width; x++) {
208
684709
            const int mb_xy = x + y * h->mb_stride;
209
684709
            const int b_xy  = 4 * x + 4 * y * h->b_stride;
210
211
684709
            h->mb2b_xy[mb_xy]  = b_xy;
212
684709
            h->mb2br_xy[mb_xy] = 8 * (FMO ? mb_xy : (mb_xy % (2 * h->mb_stride)));
213
        }
214
215
534
    return 0;
216
}
217
218
/**
219
 * Init context
220
 * Allocate buffers which are not shared amongst multiple threads.
221
 */
222
535
int ff_h264_slice_context_init(H264Context *h, H264SliceContext *sl)
223
{
224
535
    ERContext *er = &sl->er;
225
535
    int mb_array_size = h->mb_height * h->mb_stride;
226
535
    int y_size  = (2 * h->mb_width + 1) * (2 * h->mb_height + 1);
227
535
    int c_size  = h->mb_stride * (h->mb_height + 1);
228
535
    int yc_size = y_size + 2   * c_size;
229
    int x, y, i;
230
231
535
    sl->ref_cache[0][scan8[5]  + 1] =
232
535
    sl->ref_cache[0][scan8[7]  + 1] =
233
535
    sl->ref_cache[0][scan8[13] + 1] =
234
535
    sl->ref_cache[1][scan8[5]  + 1] =
235
535
    sl->ref_cache[1][scan8[7]  + 1] =
236
535
    sl->ref_cache[1][scan8[13] + 1] = PART_NOT_AVAILABLE;
237
238
535
    if (sl != h->slice_ctx) {
239
1
        memset(er, 0, sizeof(*er));
240
    } else if (CONFIG_ERROR_RESILIENCE) {
241
534
        const int er_size = h->mb_height * h->mb_stride * (4*sizeof(int) + 1);
242
243
        /* init ER */
244
534
        er->avctx          = h->avctx;
245
534
        er->decode_mb      = h264_er_decode_mb;
246
534
        er->opaque         = h;
247
534
        er->quarter_sample = 1;
248
249
534
        er->mb_num      = h->mb_num;
250
534
        er->mb_width    = h->mb_width;
251
534
        er->mb_height   = h->mb_height;
252
534
        er->mb_stride   = h->mb_stride;
253
534
        er->b8_stride   = h->mb_width * 2 + 1;
254
255
        // error resilience code looks cleaner with this
256
534
        if (!FF_ALLOCZ_TYPED_ARRAY(er->mb_index2xy,        h->mb_num + 1) ||
257
534
            !FF_ALLOCZ_TYPED_ARRAY(er->error_status_table, mb_array_size) ||
258
534
            !FF_ALLOCZ_TYPED_ARRAY(er->er_temp_buffer,     er_size)       ||
259
534
            !FF_ALLOCZ_TYPED_ARRAY(sl->dc_val_base,        yc_size))
260
            return AVERROR(ENOMEM); // ff_h264_free_tables will clean up for us
261
262
12952
        for (y = 0; y < h->mb_height; y++)
263
697127
            for (x = 0; x < h->mb_width; x++)
264
684709
                er->mb_index2xy[x + y * h->mb_width] = x + y * h->mb_stride;
265
266
534
        er->mb_index2xy[h->mb_height * h->mb_width] = (h->mb_height - 1) *
267
534
                                                      h->mb_stride + h->mb_width;
268
534
        er->dc_val[0] = sl->dc_val_base + h->mb_width * 2 + 2;
269
534
        er->dc_val[1] = sl->dc_val_base + y_size + h->mb_stride + 1;
270
534
        er->dc_val[2] = er->dc_val[1] + c_size;
271
4233346
        for (i = 0; i < yc_size; i++)
272
4232812
            sl->dc_val_base[i] = 1024;
273
    }
274
275
535
    return 0;
276
}
277
278
538
static int h264_init_context(AVCodecContext *avctx, H264Context *h)
279
{
280
    int i;
281
282
538
    h->avctx                 = avctx;
283
538
    h->cur_chroma_format_idc = -1;
284
285
538
    h->width_from_caller     = avctx->width;
286
538
    h->height_from_caller    = avctx->height;
287
288
538
    h->workaround_bugs       = avctx->workaround_bugs;
289
538
    h->flags                 = avctx->flags;
290
538
    h->poc.prev_poc_msb      = 1 << 16;
291
538
    h->recovery_frame        = -1;
292
538
    h->frame_recovered       = 0;
293
538
    h->poc.prev_frame_num    = -1;
294
538
    h->sei.frame_packing.arrangement_cancel_flag = -1;
295
538
    h->sei.unregistered.x264_build = -1;
296
297
538
    h->next_outputed_poc = INT_MIN;
298
9146
    for (i = 0; i < MAX_DELAYED_PIC_COUNT; i++)
299
8608
        h->last_pocs[i] = INT_MIN;
300
301
538
    ff_h264_sei_uninit(&h->sei);
302
303
538
    h->nb_slice_ctx = (avctx->active_thread_type & FF_THREAD_SLICE) ? avctx->thread_count : 1;
304
538
    h->slice_ctx = av_mallocz_array(h->nb_slice_ctx, sizeof(*h->slice_ctx));
305
538
    if (!h->slice_ctx) {
306
        h->nb_slice_ctx = 0;
307
        return AVERROR(ENOMEM);
308
    }
309
310
19906
    for (i = 0; i < H264_MAX_PICTURE_COUNT; i++) {
311
19368
        h->DPB[i].f = av_frame_alloc();
312
19368
        if (!h->DPB[i].f)
313
            return AVERROR(ENOMEM);
314
    }
315
316
538
    h->cur_pic.f = av_frame_alloc();
317
538
    if (!h->cur_pic.f)
318
        return AVERROR(ENOMEM);
319
320
538
    h->last_pic_for_ec.f = av_frame_alloc();
321
538
    if (!h->last_pic_for_ec.f)
322
        return AVERROR(ENOMEM);
323
324
1077
    for (i = 0; i < h->nb_slice_ctx; i++)
325
539
        h->slice_ctx[i].h264 = h;
326
327
538
    return 0;
328
}
329
330
538
static av_cold int h264_decode_end(AVCodecContext *avctx)
331
{
332
538
    H264Context *h = avctx->priv_data;
333
    int i;
334
335
538
    ff_h264_remove_all_refs(h);
336
538
    ff_h264_free_tables(h);
337
338
19906
    for (i = 0; i < H264_MAX_PICTURE_COUNT; i++) {
339
19368
        ff_h264_unref_picture(h, &h->DPB[i]);
340
19368
        av_frame_free(&h->DPB[i].f);
341
    }
342
538
    memset(h->delayed_pic, 0, sizeof(h->delayed_pic));
343
344
538
    h->cur_pic_ptr = NULL;
345
346
538
    av_freep(&h->slice_ctx);
347
538
    h->nb_slice_ctx = 0;
348
349
538
    ff_h264_sei_uninit(&h->sei);
350
538
    ff_h264_ps_uninit(&h->ps);
351
352
538
    ff_h2645_packet_uninit(&h->pkt);
353
354
538
    ff_h264_unref_picture(h, &h->cur_pic);
355
538
    av_frame_free(&h->cur_pic.f);
356
538
    ff_h264_unref_picture(h, &h->last_pic_for_ec);
357
538
    av_frame_free(&h->last_pic_for_ec.f);
358
359
538
    return 0;
360
}
361
362
static AVOnce h264_vlc_init = AV_ONCE_INIT;
363
364
538
static av_cold int h264_decode_init(AVCodecContext *avctx)
365
{
366
538
    H264Context *h = avctx->priv_data;
367
    int ret;
368
369
538
    ret = h264_init_context(avctx, h);
370
538
    if (ret < 0)
371
        return ret;
372
373
538
    ret = ff_thread_once(&h264_vlc_init, ff_h264_decode_init_vlc);
374
538
    if (ret != 0) {
375
        av_log(avctx, AV_LOG_ERROR, "pthread_once has failed.");
376
        return AVERROR_UNKNOWN;
377
    }
378
379
538
    if (avctx->ticks_per_frame == 1) {
380
530
        if(h->avctx->time_base.den < INT_MAX/2) {
381
530
            h->avctx->time_base.den *= 2;
382
        } else
383
            h->avctx->time_base.num /= 2;
384
    }
385
538
    avctx->ticks_per_frame = 2;
386
387
538
    if (!avctx->internal->is_copy) {
388

530
        if (avctx->extradata_size > 0 && avctx->extradata) {
389
308
            ret = ff_h264_decode_extradata(avctx->extradata, avctx->extradata_size,
390
                                           &h->ps, &h->is_avc, &h->nal_length_size,
391
                                           avctx->err_recognition, avctx);
392
308
           if (ret < 0) {
393
               int explode = avctx->err_recognition & AV_EF_EXPLODE;
394
               av_log(avctx, explode ? AV_LOG_ERROR: AV_LOG_WARNING,
395
                      "Error decoding the extradata\n");
396
               if (explode) {
397
                   return ret;
398
               }
399
               ret = 0;
400
           }
401
        }
402
    }
403
404

538
    if (h->ps.sps && h->ps.sps->bitstream_restriction_flag &&
405
        h->avctx->has_b_frames < h->ps.sps->num_reorder_frames) {
406
        h->avctx->has_b_frames = h->ps.sps->num_reorder_frames;
407
    }
408
409
538
    ff_h264_flush_change(h);
410
411

538
    if (h->enable_er < 0 && (avctx->active_thread_type & FF_THREAD_SLICE))
412
1
        h->enable_er = 0;
413
414

538
    if (h->enable_er && (avctx->active_thread_type & FF_THREAD_SLICE)) {
415
        av_log(avctx, AV_LOG_WARNING,
416
               "Error resilience with slice threads is enabled. It is unsafe and unsupported and may crash. "
417
               "Use it at your own risk\n");
418
    }
419
420
538
    return 0;
421
}
422
423
/**
424
 * instantaneous decoder refresh.
425
 */
426
1562
static void idr(H264Context *h)
427
{
428
    int i;
429
1562
    ff_h264_remove_all_refs(h);
430
1562
    h->poc.prev_frame_num        =
431
1562
    h->poc.prev_frame_num_offset = 0;
432
1562
    h->poc.prev_poc_msb          = 1<<16;
433
1562
    h->poc.prev_poc_lsb          = -1;
434
26554
    for (i = 0; i < MAX_DELAYED_PIC_COUNT; i++)
435
24992
        h->last_pocs[i] = INT_MIN;
436
1562
}
437
438
/* forget old pics after a seek */
439
544
void ff_h264_flush_change(H264Context *h)
440
{
441
    int i, j;
442
443
544
    h->next_outputed_poc = INT_MIN;
444
544
    h->prev_interlaced_frame = 1;
445
544
    idr(h);
446
447
544
    h->poc.prev_frame_num = -1;
448
544
    if (h->cur_pic_ptr) {
449
        h->cur_pic_ptr->reference = 0;
450
        for (j=i=0; h->delayed_pic[i]; i++)
451
            if (h->delayed_pic[i] != h->cur_pic_ptr)
452
                h->delayed_pic[j++] = h->delayed_pic[i];
453
        h->delayed_pic[j] = NULL;
454
    }
455
544
    ff_h264_unref_picture(h, &h->last_pic_for_ec);
456
457
544
    h->first_field = 0;
458
544
    h->recovery_frame = -1;
459
544
    h->frame_recovered = 0;
460
544
    h->current_slice = 0;
461
544
    h->mmco_reset = 1;
462
544
}
463
464
static void h264_decode_flush(AVCodecContext *avctx)
465
{
466
    H264Context *h = avctx->priv_data;
467
    int i;
468
469
    memset(h->delayed_pic, 0, sizeof(h->delayed_pic));
470
471
    ff_h264_flush_change(h);
472
    ff_h264_sei_uninit(&h->sei);
473
474
    for (i = 0; i < H264_MAX_PICTURE_COUNT; i++)
475
        ff_h264_unref_picture(h, &h->DPB[i]);
476
    h->cur_pic_ptr = NULL;
477
    ff_h264_unref_picture(h, &h->cur_pic);
478
479
    h->mb_y = 0;
480
481
    ff_h264_free_tables(h);
482
    h->context_initialized = 0;
483
}
484
485
32
static int get_last_needed_nal(H264Context *h)
486
{
487
32
    int nals_needed = 0;
488
32
    int first_slice = 0;
489
    int i, ret;
490
491
65
    for (i = 0; i < h->pkt.nb_nals; i++) {
492
33
        H2645NAL *nal = &h->pkt.nals[i];
493
        GetBitContext gb;
494
495
        /* packets can sometimes contain multiple PPS/SPS,
496
         * e.g. two PAFF field pictures in one packet, or a demuxer
497
         * which splits NALs strangely if so, when frame threading we
498
         * can't start the next thread until we've read all of them */
499
33
        switch (nal->type) {
500
        case H264_NAL_SPS:
501
        case H264_NAL_PPS:
502
            nals_needed = i;
503
            break;
504
32
        case H264_NAL_DPA:
505
        case H264_NAL_IDR_SLICE:
506
        case H264_NAL_SLICE:
507
32
            ret = init_get_bits8(&gb, nal->data + 1, nal->size - 1);
508
32
            if (ret < 0) {
509
                av_log(h->avctx, AV_LOG_ERROR, "Invalid zero-sized VCL NAL unit\n");
510
                if (h->avctx->err_recognition & AV_EF_EXPLODE)
511
                    return ret;
512
513
                break;
514
            }
515

32
            if (!get_ue_golomb_long(&gb) ||  // first_mb_in_slice
516
                !first_slice ||
517
                first_slice != nal->type)
518
32
                nals_needed = i;
519
32
            if (!first_slice)
520
32
                first_slice = nal->type;
521
        }
522
    }
523
524
32
    return nals_needed;
525
}
526
527
static void debug_green_metadata(const H264SEIGreenMetaData *gm, void *logctx)
528
{
529
    av_log(logctx, AV_LOG_DEBUG, "Green Metadata Info SEI message\n");
530
    av_log(logctx, AV_LOG_DEBUG, "  green_metadata_type: %d\n", gm->green_metadata_type);
531
532
    if (gm->green_metadata_type == 0) {
533
        av_log(logctx, AV_LOG_DEBUG, "  green_metadata_period_type: %d\n", gm->period_type);
534
535
        if (gm->period_type == 2)
536
            av_log(logctx, AV_LOG_DEBUG, "  green_metadata_num_seconds: %d\n", gm->num_seconds);
537
        else if (gm->period_type == 3)
538
            av_log(logctx, AV_LOG_DEBUG, "  green_metadata_num_pictures: %d\n", gm->num_pictures);
539
540
        av_log(logctx, AV_LOG_DEBUG, "  SEI GREEN Complexity Metrics: %f %f %f %f\n",
541
               (float)gm->percent_non_zero_macroblocks/255,
542
               (float)gm->percent_intra_coded_macroblocks/255,
543
               (float)gm->percent_six_tap_filtering/255,
544
               (float)gm->percent_alpha_point_deblocking_instance/255);
545
546
    } else if (gm->green_metadata_type == 1) {
547
        av_log(logctx, AV_LOG_DEBUG, "  xsd_metric_type: %d\n", gm->xsd_metric_type);
548
549
        if (gm->xsd_metric_type == 0)
550
            av_log(logctx, AV_LOG_DEBUG, "  xsd_metric_value: %f\n",
551
                   (float)gm->xsd_metric_value/100);
552
    }
553
}
554
555
26824
static int decode_nal_units(H264Context *h, const uint8_t *buf, int buf_size)
556
{
557
26824
    AVCodecContext *const avctx = h->avctx;
558
26824
    int nals_needed = 0; ///< number of NALs that need decoding before the next frame thread starts
559
26824
    int idr_cleared=0;
560
26824
    int i, ret = 0;
561
562
26824
    h->has_slice = 0;
563
26824
    h->nal_unit_type= 0;
564
565
26824
    if (!(avctx->flags2 & AV_CODEC_FLAG2_CHUNKS)) {
566
26068
        h->current_slice = 0;
567
26068
        if (!h->first_field) {
568
22864
            h->cur_pic_ptr = NULL;
569
22864
            ff_h264_sei_uninit(&h->sei);
570
        }
571
    }
572
573
26824
    if (h->nal_length_size == 4) {
574

2702
        if (buf_size > 8 && AV_RB32(buf) == 1 && AV_RB32(buf+5) > (unsigned)buf_size) {
575
            h->is_avc = 0;
576

2702
        }else if(buf_size > 3 && AV_RB32(buf) > 1 && AV_RB32(buf) <= (unsigned)buf_size)
577
2702
            h->is_avc = 1;
578
    }
579
580
26824
    ret = ff_h2645_packet_split(&h->pkt, buf, buf_size, avctx, h->is_avc, h->nal_length_size,
581
                                avctx->codec_id, 0, 0);
582
26824
    if (ret < 0) {
583
1
        av_log(avctx, AV_LOG_ERROR,
584
               "Error splitting the input into NAL units.\n");
585
1
        return ret;
586
    }
587
588
26823
    if (avctx->active_thread_type & FF_THREAD_FRAME)
589
32
        nals_needed = get_last_needed_nal(h);
590
26823
    if (nals_needed < 0)
591
        return nals_needed;
592
593
73871
    for (i = 0; i < h->pkt.nb_nals; i++) {
594
47048
        H2645NAL *nal = &h->pkt.nals[i];
595
        int max_slice_ctx, err;
596
597
47048
        if (avctx->skip_frame >= AVDISCARD_NONREF &&
598

928
            nal->ref_idc == 0 && nal->type != H264_NAL_SEI)
599
504
            continue;
600
601
        // FIXME these should stop being context-global variables
602
46544
        h->nal_ref_idc   = nal->ref_idc;
603
46544
        h->nal_unit_type = nal->type;
604
605
46544
        err = 0;
606


46544
        switch (nal->type) {
607
2073
        case H264_NAL_IDR_SLICE:
608
2073
            if ((nal->data[1] & 0xFC) == 0x98) {
609
                av_log(h->avctx, AV_LOG_ERROR, "Invalid inter IDR frame\n");
610
                h->next_outputed_poc = INT_MIN;
611
                ret = -1;
612
                goto end;
613
            }
614
2073
            if(!idr_cleared) {
615
1018
                idr(h); // FIXME ensure we don't lose some frames if there is reordering
616
            }
617
2073
            idr_cleared = 1;
618
2073
            h->has_recovery_point = 1;
619
34469
        case H264_NAL_SLICE:
620
34469
            h->has_slice = 1;
621
622
34469
            if ((err = ff_h264_queue_decode_slice(h, nal))) {
623
377
                H264SliceContext *sl = h->slice_ctx + h->nb_slice_ctx_queued;
624
377
                sl->ref_count[0] = sl->ref_count[1] = 0;
625
377
                break;
626
            }
627
628
34092
            if (h->current_slice == 1) {
629

25907
                if (avctx->active_thread_type & FF_THREAD_FRAME &&
630

32
                    i >= nals_needed && !h->setup_finished && h->cur_pic_ptr) {
631
32
                    ff_thread_finish_setup(avctx);
632
32
                    h->setup_finished = 1;
633
                }
634
635

25907
                if (h->avctx->hwaccel &&
636
                    (ret = h->avctx->hwaccel->start_frame(h->avctx, buf, buf_size)) < 0)
637
                    goto end;
638
            }
639
640
34092
            max_slice_ctx = avctx->hwaccel ? 1 : h->nb_slice_ctx;
641
34092
            if (h->nb_slice_ctx_queued == max_slice_ctx) {
642
33262
                if (h->avctx->hwaccel) {
643
                    ret = avctx->hwaccel->decode_slice(avctx, nal->raw_data, nal->raw_size);
644
                    h->nb_slice_ctx_queued = 0;
645
                } else
646
33262
                    ret = ff_h264_execute_decode_slices(h);
647

33262
                if (ret < 0 && (h->avctx->err_recognition & AV_EF_EXPLODE))
648
                    goto end;
649
            }
650
34092
            break;
651
        case H264_NAL_DPA:
652
        case H264_NAL_DPB:
653
        case H264_NAL_DPC:
654
            avpriv_request_sample(avctx, "data partitioning");
655
            break;
656
2270
        case H264_NAL_SEI:
657
2270
            ret = ff_h264_sei_decode(&h->sei, &nal->gb, &h->ps, avctx);
658

2270
            h->has_recovery_point = h->has_recovery_point || h->sei.recovery_point.recovery_frame_cnt != -1;
659
2270
            if (avctx->debug & FF_DEBUG_GREEN_MD)
660
                debug_green_metadata(&h->sei.green_metadata, h->avctx);
661

2270
            if (ret < 0 && (h->avctx->err_recognition & AV_EF_EXPLODE))
662
                goto end;
663
2270
            break;
664
980
        case H264_NAL_SPS: {
665
980
            GetBitContext tmp_gb = nal->gb;
666

980
            if (avctx->hwaccel && avctx->hwaccel->decode_params) {
667
                ret = avctx->hwaccel->decode_params(avctx,
668
                                                    nal->type,
669
                                                    nal->raw_data,
670
                                                    nal->raw_size);
671
                if (ret < 0)
672
                    goto end;
673
            }
674
980
            if (ff_h264_decode_seq_parameter_set(&tmp_gb, avctx, &h->ps, 0) >= 0)
675
980
                break;
676
2
            av_log(h->avctx, AV_LOG_DEBUG,
677
                   "SPS decoding failure, trying again with the complete NAL\n");
678
2
            init_get_bits8(&tmp_gb, nal->raw_data + 1, nal->raw_size - 1);
679
2
            if (ff_h264_decode_seq_parameter_set(&tmp_gb, avctx, &h->ps, 0) >= 0)
680
2
                break;
681
            ff_h264_decode_seq_parameter_set(&nal->gb, avctx, &h->ps, 1);
682
            break;
683
        }
684
6559
        case H264_NAL_PPS:
685

6559
            if (avctx->hwaccel && avctx->hwaccel->decode_params) {
686
                ret = avctx->hwaccel->decode_params(avctx,
687
                                                    nal->type,
688
                                                    nal->raw_data,
689
                                                    nal->raw_size);
690
                if (ret < 0)
691
                    goto end;
692
            }
693
6559
            ret = ff_h264_decode_picture_parameter_set(&nal->gb, avctx, &h->ps,
694
                                                       nal->size_bits);
695

6559
            if (ret < 0 && (h->avctx->err_recognition & AV_EF_EXPLODE))
696
                goto end;
697
6559
            break;
698
2266
        case H264_NAL_AUD:
699
        case H264_NAL_END_SEQUENCE:
700
        case H264_NAL_END_STREAM:
701
        case H264_NAL_FILLER_DATA:
702
        case H264_NAL_SPS_EXT:
703
        case H264_NAL_AUXILIARY_SLICE:
704
2266
            break;
705
        default:
706
            av_log(avctx, AV_LOG_DEBUG, "Unknown NAL code: %d (%d bits)\n",
707
                   nal->type, nal->size_bits);
708
        }
709
710
46544
        if (err < 0) {
711
377
            av_log(h->avctx, AV_LOG_ERROR, "decode_slice_header error\n");
712
        }
713
    }
714
715
26823
    ret = ff_h264_execute_decode_slices(h);
716

26823
    if (ret < 0 && (h->avctx->err_recognition & AV_EF_EXPLODE))
717
        goto end;
718
719
    // set decode_error_flags to allow users to detect concealed decoding errors
720

26823
    if ((ret < 0 || h->slice_ctx->er.error_occurred) && h->cur_pic_ptr) {
721
2
        h->cur_pic_ptr->f->decode_error_flags |= FF_DECODE_ERROR_DECODE_SLICES;
722
    }
723
724
26823
    ret = 0;
725
26823
end:
726
727
#if CONFIG_ERROR_RESILIENCE
728
    /*
729
     * FIXME: Error handling code does not seem to support interlaced
730
     * when slices span multiple rows
731
     * The ff_er_add_slice calls don't work right for bottom
732
     * fields; they cause massive erroneous error concealing
733
     * Error marking covers both fields (top and bottom).
734
     * This causes a mismatched s->error_count
735
     * and a bad error table. Further, the error count goes to
736
     * INT_MAX when called for bottom field, because mb_y is
737
     * past end by one (callers fault) and resync_mb_y != 0
738
     * causes problems for the first MB line, too.
739
     */
740

26823
    if (!FIELD_PICTURE(h) && h->current_slice && h->enable_er) {
741
742
19137
        H264SliceContext *sl = h->slice_ctx;
743

19137
        int use_last_pic = h->last_pic_for_ec.f->buf[0] && !sl->ref_count[0];
744
745
19137
        ff_h264_set_erpic(&sl->er.cur_pic, h->cur_pic_ptr);
746
747
19137
        if (use_last_pic) {
748
489
            ff_h264_set_erpic(&sl->er.last_pic, &h->last_pic_for_ec);
749
489
            sl->ref_list[0][0].parent = &h->last_pic_for_ec;
750
489
            memcpy(sl->ref_list[0][0].data, h->last_pic_for_ec.f->data, sizeof(sl->ref_list[0][0].data));
751
489
            memcpy(sl->ref_list[0][0].linesize, h->last_pic_for_ec.f->linesize, sizeof(sl->ref_list[0][0].linesize));
752
489
            sl->ref_list[0][0].reference = h->last_pic_for_ec.reference;
753
18648
        } else if (sl->ref_count[0]) {
754
16735
            ff_h264_set_erpic(&sl->er.last_pic, sl->ref_list[0][0].parent);
755
        } else
756
1913
            ff_h264_set_erpic(&sl->er.last_pic, NULL);
757
758
19137
        if (sl->ref_count[1])
759
16735
            ff_h264_set_erpic(&sl->er.next_pic, sl->ref_list[1][0].parent);
760
761
19137
        sl->er.ref_count = sl->ref_count[0];
762
763
19137
        ff_er_frame_end(&sl->er);
764
19137
        if (use_last_pic)
765
489
            memset(&sl->ref_list[0][0], 0, sizeof(sl->ref_list[0][0]));
766
    }
767
#endif /* CONFIG_ERROR_RESILIENCE */
768
    /* clean up */
769

26823
    if (h->cur_pic_ptr && !h->droppable && h->has_slice) {
770
17201
        ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX,
771
17201
                                  h->picture_structure == PICT_BOTTOM_FIELD);
772
    }
773
774
26823
    return (ret < 0) ? ret : buf_size;
775
}
776
777
/**
778
 * Return the number of bytes consumed for building the current frame.
779
 */
780
26170
static int get_consumed_bytes(int pos, int buf_size)
781
{
782
26170
    if (pos == 0)
783
        pos = 1;        // avoid infinite loops (I doubt that is needed but...)
784
26170
    if (pos + 10 > buf_size)
785
26170
        pos = buf_size; // oops ;)
786
787
26170
    return pos;
788
}
789
790
1
static int h264_export_enc_params(AVFrame *f, H264Picture *p)
791
{
792
    AVVideoEncParams *par;
793
1
    unsigned int nb_mb = p->mb_height * p->mb_width;
794
    unsigned int x, y;
795
796
1
    par = av_video_enc_params_create_side_data(f, AV_VIDEO_ENC_PARAMS_H264, nb_mb);
797
1
    if (!par)
798
        return AVERROR(ENOMEM);
799
800
1
    par->qp = p->pps->init_qp;
801
802
1
    par->delta_qp[1][0] = p->pps->chroma_qp_index_offset[0];
803
1
    par->delta_qp[1][1] = p->pps->chroma_qp_index_offset[0];
804
1
    par->delta_qp[2][0] = p->pps->chroma_qp_index_offset[1];
805
1
    par->delta_qp[2][1] = p->pps->chroma_qp_index_offset[1];
806
807
19
    for (y = 0; y < p->mb_height; y++)
808
414
        for (x = 0; x < p->mb_width; x++) {
809
396
            const unsigned int block_idx = y * p->mb_width + x;
810
396
            const unsigned int     mb_xy = y * p->mb_stride + x;
811
396
            AVVideoBlockParams *b = av_video_enc_params_block(par, block_idx);
812
813
396
            b->src_x = x * 16;
814
396
            b->src_y = y * 16;
815
396
            b->w     = 16;
816
396
            b->h     = 16;
817
818
396
            b->delta_qp = p->qscale_table[mb_xy] - par->qp;
819
        }
820
821
1
    return 0;
822
}
823
824
22292
static int output_frame(H264Context *h, AVFrame *dst, H264Picture *srcp)
825
{
826
22292
    AVFrame *src = srcp->f;
827
    int ret;
828
829
22292
    ret = av_frame_ref(dst, src);
830
22292
    if (ret < 0)
831
        return ret;
832
833
22292
    av_dict_set(&dst->metadata, "stereo_mode", ff_h264_sei_stereo_mode(&h->sei.frame_packing), 0);
834
835
22292
    if (srcp->sei_recovery_frame_cnt == 0)
836
23
        dst->key_frame = 1;
837
838
22292
    if (h->avctx->export_side_data & AV_CODEC_EXPORT_DATA_VIDEO_ENC_PARAMS) {
839
1
        ret = h264_export_enc_params(dst, srcp);
840
1
        if (ret < 0)
841
            goto fail;
842
    }
843
844
22292
    return 0;
845
fail:
846
    av_frame_unref(dst);
847
    return ret;
848
}
849
850
static int is_avcc_extradata(const uint8_t *buf, int buf_size)
851
{
852
    int cnt= buf[5]&0x1f;
853
    const uint8_t *p= buf+6;
854
    if (!cnt)
855
        return 0;
856
    while(cnt--){
857
        int nalsize= AV_RB16(p) + 2;
858
        if(nalsize > buf_size - (p-buf) || (p[2] & 0x9F) != 7)
859
            return 0;
860
        p += nalsize;
861
    }
862
    cnt = *(p++);
863
    if(!cnt)
864
        return 0;
865
    while(cnt--){
866
        int nalsize= AV_RB16(p) + 2;
867
        if(nalsize > buf_size - (p-buf) || (p[2] & 0x9F) != 8)
868
            return 0;
869
        p += nalsize;
870
    }
871
    return 1;
872
}
873
874
22292
static int finalize_frame(H264Context *h, AVFrame *dst, H264Picture *out, int *got_frame)
875
{
876
    int ret;
877
878
22292
    if (((h->avctx->flags & AV_CODEC_FLAG_OUTPUT_CORRUPT) ||
879
22292
         (h->avctx->flags2 & AV_CODEC_FLAG2_SHOW_ALL) ||
880
22292
         out->recovered)) {
881
882
22292
        if (!h->avctx->hwaccel &&
883
22292
            (out->field_poc[0] == INT_MAX ||
884
22292
             out->field_poc[1] == INT_MAX)
885
           ) {
886
            int p;
887
            AVFrame *f = out->f;
888
            int field = out->field_poc[0] == INT_MAX;
889
            uint8_t *dst_data[4];
890
            int linesizes[4];
891
            const uint8_t *src_data[4];
892
893
            av_log(h->avctx, AV_LOG_DEBUG, "Duplicating field %d to fill missing\n", field);
894
895
            for (p = 0; p<4; p++) {
896
                dst_data[p] = f->data[p] + (field^1)*f->linesize[p];
897
                src_data[p] = f->data[p] +  field   *f->linesize[p];
898
                linesizes[p] = 2*f->linesize[p];
899
            }
900
901
            av_image_copy(dst_data, linesizes, src_data, linesizes,
902
                          f->format, f->width, f->height>>1);
903
        }
904
905
22292
        ret = output_frame(h, dst, out);
906
22292
        if (ret < 0)
907
            return ret;
908
909
22292
        *got_frame = 1;
910
911
        if (CONFIG_MPEGVIDEO) {
912
22292
            ff_print_debug_info2(h->avctx, dst, NULL,
913
                                 out->mb_type,
914
                                 out->qscale_table,
915
22292
                                 out->motion_val,
916
                                 NULL,
917
                                 h->mb_width, h->mb_height, h->mb_stride, 1);
918
        }
919
    }
920
921
22292
    return 0;
922
}
923
924
515
static int send_next_delayed_frame(H264Context *h, AVFrame *dst_frame,
925
                                   int *got_frame, int buf_index)
926
{
927
    int ret, i, out_idx;
928
515
    H264Picture *out = h->delayed_pic[0];
929
930
515
    h->cur_pic_ptr = NULL;
931
515
    h->first_field = 0;
932
933
515
    out_idx = 0;
934
515
    for (i = 1;
935
1029
         h->delayed_pic[i] &&
936
521
         !h->delayed_pic[i]->f->key_frame &&
937
514
         !h->delayed_pic[i]->mmco_reset;
938
514
         i++)
939
514
        if (h->delayed_pic[i]->poc < out->poc) {
940
103
            out     = h->delayed_pic[i];
941
103
            out_idx = i;
942
        }
943
944
1249
    for (i = out_idx; h->delayed_pic[i]; i++)
945
734
        h->delayed_pic[i] = h->delayed_pic[i + 1];
946
947
515
    if (out) {
948
259
        out->reference &= ~DELAYED_PIC_REF;
949
259
        ret = finalize_frame(h, dst_frame, out, got_frame);
950
259
        if (ret < 0)
951
            return ret;
952
    }
953
954
515
    return buf_index;
955
}
956
957
27339
static int h264_decode_frame(AVCodecContext *avctx, void *data,
958
                             int *got_frame, AVPacket *avpkt)
959
{
960
27339
    const uint8_t *buf = avpkt->data;
961
27339
    int buf_size       = avpkt->size;
962
27339
    H264Context *h     = avctx->priv_data;
963
27339
    AVFrame *pict      = data;
964
    int buf_index;
965
    int ret;
966
967
27339
    h->flags = avctx->flags;
968
27339
    h->setup_finished = 0;
969
27339
    h->nb_slice_ctx_queued = 0;
970
971
27339
    ff_h264_unref_picture(h, &h->last_pic_for_ec);
972
973
    /* end of stream, output what is still in the buffers */
974
27339
    if (buf_size == 0)
975
515
        return send_next_delayed_frame(h, pict, got_frame, 0);
976
977
26824
    if (av_packet_get_side_data(avpkt, AV_PKT_DATA_NEW_EXTRADATA, NULL)) {
978
        int side_size;
979
4
        uint8_t *side = av_packet_get_side_data(avpkt, AV_PKT_DATA_NEW_EXTRADATA, &side_size);
980
4
        ff_h264_decode_extradata(side, side_size,
981
                                 &h->ps, &h->is_avc, &h->nal_length_size,
982
                                 avctx->err_recognition, avctx);
983
    }
984


26824
    if (h->is_avc && buf_size >= 9 && buf[0]==1 && buf[2]==0 && (buf[4]&0xFC)==0xFC) {
985
        if (is_avcc_extradata(buf, buf_size))
986
            return ff_h264_decode_extradata(buf, buf_size,
987
                                            &h->ps, &h->is_avc, &h->nal_length_size,
988
                                            avctx->err_recognition, avctx);
989
    }
990
991
26824
    buf_index = decode_nal_units(h, buf, buf_size);
992
26824
    if (buf_index < 0)
993
1
        return AVERROR_INVALIDDATA;
994
995

26823
    if (!h->cur_pic_ptr && h->nal_unit_type == H264_NAL_END_SEQUENCE) {
996
        av_assert0(buf_index <= buf_size);
997
        return send_next_delayed_frame(h, pict, got_frame, buf_index);
998
    }
999
1000

26823
    if (!(avctx->flags2 & AV_CODEC_FLAG2_CHUNKS) && (!h->cur_pic_ptr || !h->has_slice)) {
1001

653
        if (avctx->skip_frame >= AVDISCARD_NONREF ||
1002
453
            buf_size >= 4 && !memcmp("Q264", buf, 4))
1003
200
            return buf_size;
1004
453
        av_log(avctx, AV_LOG_ERROR, "no frame!\n");
1005
453
        return AVERROR_INVALIDDATA;
1006
    }
1007
1008
26170
    if (!(avctx->flags2 & AV_CODEC_FLAG2_CHUNKS) ||
1009

756
        (h->mb_y >= h->mb_height && h->mb_height)) {
1010
25714
        if ((ret = ff_h264_field_end(h, &h->slice_ctx[0], 0)) < 0)
1011
            return ret;
1012
1013
        /* Wait for second field. */
1014
25714
        if (h->next_output_pic) {
1015
22033
            ret = finalize_frame(h, pict, h->next_output_pic, got_frame);
1016
22033
            if (ret < 0)
1017
                return ret;
1018
        }
1019
    }
1020
1021

26170
    av_assert0(pict->buf[0] || !*got_frame);
1022
1023
26170
    ff_h264_unref_picture(h, &h->last_pic_for_ec);
1024
1025
26170
    return get_consumed_bytes(buf_index, buf_size);
1026
}
1027
1028
#define OFFSET(x) offsetof(H264Context, x)
1029
#define VD AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM
1030
static const AVOption h264_options[] = {
1031
    { "is_avc", "is avc", OFFSET(is_avc), AV_OPT_TYPE_BOOL, {.i64 = 0}, 0, 1, 0 },
1032
    { "nal_length_size", "nal_length_size", OFFSET(nal_length_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 4, 0 },
1033
    { "enable_er", "Enable error resilience on damaged frames (unsafe)", OFFSET(enable_er), AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1, VD },
1034
    { "x264_build", "Assume this x264 version if no x264 version found in any SEI", OFFSET(x264_build), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, VD },
1035
    { NULL },
1036
};
1037
1038
static const AVClass h264_class = {
1039
    .class_name = "H264 Decoder",
1040
    .item_name  = av_default_item_name,
1041
    .option     = h264_options,
1042
    .version    = LIBAVUTIL_VERSION_INT,
1043
};
1044
1045
AVCodec ff_h264_decoder = {
1046
    .name                  = "h264",
1047
    .long_name             = NULL_IF_CONFIG_SMALL("H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10"),
1048
    .type                  = AVMEDIA_TYPE_VIDEO,
1049
    .id                    = AV_CODEC_ID_H264,
1050
    .priv_data_size        = sizeof(H264Context),
1051
    .init                  = h264_decode_init,
1052
    .close                 = h264_decode_end,
1053
    .decode                = h264_decode_frame,
1054
    .capabilities          = /*AV_CODEC_CAP_DRAW_HORIZ_BAND |*/ AV_CODEC_CAP_DR1 |
1055
                             AV_CODEC_CAP_DELAY | AV_CODEC_CAP_SLICE_THREADS |
1056
                             AV_CODEC_CAP_FRAME_THREADS,
1057
    .hw_configs            = (const AVCodecHWConfigInternal*[]) {
1058
#if CONFIG_H264_DXVA2_HWACCEL
1059
                               HWACCEL_DXVA2(h264),
1060
#endif
1061
#if CONFIG_H264_D3D11VA_HWACCEL
1062
                               HWACCEL_D3D11VA(h264),
1063
#endif
1064
#if CONFIG_H264_D3D11VA2_HWACCEL
1065
                               HWACCEL_D3D11VA2(h264),
1066
#endif
1067
#if CONFIG_H264_NVDEC_HWACCEL
1068
                               HWACCEL_NVDEC(h264),
1069
#endif
1070
#if CONFIG_H264_VAAPI_HWACCEL
1071
                               HWACCEL_VAAPI(h264),
1072
#endif
1073
#if CONFIG_H264_VDPAU_HWACCEL
1074
                               HWACCEL_VDPAU(h264),
1075
#endif
1076
#if CONFIG_H264_VIDEOTOOLBOX_HWACCEL
1077
                               HWACCEL_VIDEOTOOLBOX(h264),
1078
#endif
1079
                               NULL
1080
                           },
1081
    .caps_internal         = FF_CODEC_CAP_INIT_THREADSAFE | FF_CODEC_CAP_EXPORTS_CROPPING |
1082
                             FF_CODEC_CAP_ALLOCATE_PROGRESS | FF_CODEC_CAP_INIT_CLEANUP,
1083
    .flush                 = h264_decode_flush,
1084
    .update_thread_context = ONLY_IF_THREADS_ENABLED(ff_h264_update_thread_context),
1085
    .profiles              = NULL_IF_CONFIG_SMALL(ff_h264_profiles),
1086
    .priv_class            = &h264_class,
1087
};