GCC Code Coverage Report
Directory: ../../../ffmpeg/ Exec Total Coverage
File: src/libavcodec/decode.c Lines: 682 1112 61.3 %
Date: 2020-09-21 17:35:45 Branches: 498 877 56.8 %

Line Branch Exec Source
1
/*
2
 * generic decoding-related code
3
 *
4
 * This file is part of FFmpeg.
5
 *
6
 * FFmpeg is free software; you can redistribute it and/or
7
 * modify it under the terms of the GNU Lesser General Public
8
 * License as published by the Free Software Foundation; either
9
 * version 2.1 of the License, or (at your option) any later version.
10
 *
11
 * FFmpeg is distributed in the hope that it will be useful,
12
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14
 * Lesser General Public License for more details.
15
 *
16
 * You should have received a copy of the GNU Lesser General Public
17
 * License along with FFmpeg; if not, write to the Free Software
18
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19
 */
20
21
#include <stdint.h>
22
#include <string.h>
23
24
#include "config.h"
25
26
#if CONFIG_ICONV
27
# include <iconv.h>
28
#endif
29
30
#include "libavutil/avassert.h"
31
#include "libavutil/avstring.h"
32
#include "libavutil/bprint.h"
33
#include "libavutil/common.h"
34
#include "libavutil/frame.h"
35
#include "libavutil/hwcontext.h"
36
#include "libavutil/imgutils.h"
37
#include "libavutil/internal.h"
38
#include "libavutil/intmath.h"
39
#include "libavutil/opt.h"
40
41
#include "avcodec.h"
42
#include "bytestream.h"
43
#include "decode.h"
44
#include "hwconfig.h"
45
#include "internal.h"
46
#include "packet_internal.h"
47
#include "thread.h"
48
49
typedef struct FramePool {
50
    /**
51
     * Pools for each data plane. For audio all the planes have the same size,
52
     * so only pools[0] is used.
53
     */
54
    AVBufferPool *pools[4];
55
56
    /*
57
     * Pool parameters
58
     */
59
    int format;
60
    int width, height;
61
    int stride_align[AV_NUM_DATA_POINTERS];
62
    int linesize[4];
63
    int planes;
64
    int channels;
65
    int samples;
66
} FramePool;
67
68
390119
static int apply_param_change(AVCodecContext *avctx, const AVPacket *avpkt)
69
{
70
    int size, ret;
71
    const uint8_t *data;
72
    uint32_t flags;
73
    int64_t val;
74
75
390119
    data = av_packet_get_side_data(avpkt, AV_PKT_DATA_PARAM_CHANGE, &size);
76
390119
    if (!data)
77
390117
        return 0;
78
79
2
    if (!(avctx->codec->capabilities & AV_CODEC_CAP_PARAM_CHANGE)) {
80
        av_log(avctx, AV_LOG_ERROR, "This decoder does not support parameter "
81
               "changes, but PARAM_CHANGE side data was sent to it.\n");
82
        ret = AVERROR(EINVAL);
83
        goto fail2;
84
    }
85
86
2
    if (size < 4)
87
        goto fail;
88
89
2
    flags = bytestream_get_le32(&data);
90
2
    size -= 4;
91
92
2
    if (flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_COUNT) {
93
        if (size < 4)
94
            goto fail;
95
        val = bytestream_get_le32(&data);
96
        if (val <= 0 || val > INT_MAX) {
97
            av_log(avctx, AV_LOG_ERROR, "Invalid channel count");
98
            ret = AVERROR_INVALIDDATA;
99
            goto fail2;
100
        }
101
        avctx->channels = val;
102
        size -= 4;
103
    }
104
2
    if (flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_LAYOUT) {
105
        if (size < 8)
106
            goto fail;
107
        avctx->channel_layout = bytestream_get_le64(&data);
108
        size -= 8;
109
    }
110
2
    if (flags & AV_SIDE_DATA_PARAM_CHANGE_SAMPLE_RATE) {
111
        if (size < 4)
112
            goto fail;
113
        val = bytestream_get_le32(&data);
114
        if (val <= 0 || val > INT_MAX) {
115
            av_log(avctx, AV_LOG_ERROR, "Invalid sample rate");
116
            ret = AVERROR_INVALIDDATA;
117
            goto fail2;
118
        }
119
        avctx->sample_rate = val;
120
        size -= 4;
121
    }
122
2
    if (flags & AV_SIDE_DATA_PARAM_CHANGE_DIMENSIONS) {
123
2
        if (size < 8)
124
            goto fail;
125
2
        avctx->width  = bytestream_get_le32(&data);
126
2
        avctx->height = bytestream_get_le32(&data);
127
2
        size -= 8;
128
2
        ret = ff_set_dimensions(avctx, avctx->width, avctx->height);
129
2
        if (ret < 0)
130
            goto fail2;
131
    }
132
133
2
    return 0;
134
fail:
135
    av_log(avctx, AV_LOG_ERROR, "PARAM_CHANGE side data too small.\n");
136
    ret = AVERROR_INVALIDDATA;
137
fail2:
138
    if (ret < 0) {
139
        av_log(avctx, AV_LOG_ERROR, "Error applying parameter changes.\n");
140
        if (avctx->err_recognition & AV_EF_EXPLODE)
141
            return ret;
142
    }
143
    return 0;
144
}
145
146
#define IS_EMPTY(pkt) (!(pkt)->data)
147
148
391362
static int extract_packet_props(AVCodecInternal *avci, AVPacket *pkt)
149
{
150
391362
    int ret = 0;
151
152
391362
    ret = avpriv_packet_list_put(&avci->pkt_props, &avci->pkt_props_tail, pkt,
153
                                 av_packet_copy_props, 0);
154
391362
    if (ret < 0)
155
        return ret;
156
391362
    avci->pkt_props_tail->pkt.size = pkt->size; // HACK: Needed for ff_decode_frame_props().
157
391362
    avci->pkt_props_tail->pkt.data = (void*)1;  // HACK: Needed for IS_EMPTY().
158
159
391362
    if (IS_EMPTY(avci->last_pkt_props)) {
160
390154
        ret = avpriv_packet_list_get(&avci->pkt_props,
161
                                     &avci->pkt_props_tail,
162
                                     avci->last_pkt_props);
163
390154
        av_assert0(ret != AVERROR(EAGAIN));
164
    }
165
391362
    return ret;
166
}
167
168
3522
static int unrefcount_frame(AVCodecInternal *avci, AVFrame *frame)
169
{
170
    int ret;
171
172
    /* move the original frame to our backup */
173
3522
    av_frame_unref(avci->to_free);
174
3522
    av_frame_move_ref(avci->to_free, frame);
175
176
    /* now copy everything except the AVBufferRefs back
177
     * note that we make a COPY of the side data, so calling av_frame_free() on
178
     * the caller's frame will work properly */
179
3522
    ret = av_frame_copy_props(frame, avci->to_free);
180
3522
    if (ret < 0)
181
        return ret;
182
183
3522
    memcpy(frame->data,     avci->to_free->data,     sizeof(frame->data));
184
3522
    memcpy(frame->linesize, avci->to_free->linesize, sizeof(frame->linesize));
185
3522
    if (avci->to_free->extended_data != avci->to_free->data) {
186
        int planes = avci->to_free->channels;
187
        int size   = planes * sizeof(*frame->extended_data);
188
189
        if (!size) {
190
            av_frame_unref(frame);
191
            return AVERROR_BUG;
192
        }
193
194
        frame->extended_data = av_malloc(size);
195
        if (!frame->extended_data) {
196
            av_frame_unref(frame);
197
            return AVERROR(ENOMEM);
198
        }
199
        memcpy(frame->extended_data, avci->to_free->extended_data,
200
               size);
201
    } else
202
3522
        frame->extended_data = frame->data;
203
204
3522
    frame->format         = avci->to_free->format;
205
3522
    frame->width          = avci->to_free->width;
206
3522
    frame->height         = avci->to_free->height;
207
3522
    frame->channel_layout = avci->to_free->channel_layout;
208
3522
    frame->nb_samples     = avci->to_free->nb_samples;
209
3522
    frame->channels       = avci->to_free->channels;
210
211
3522
    return 0;
212
}
213
214
12654
int ff_decode_bsfs_init(AVCodecContext *avctx)
215
{
216
12654
    AVCodecInternal *avci = avctx->internal;
217
    int ret;
218
219
12654
    if (avci->bsf)
220
        return 0;
221
222
12654
    ret = av_bsf_list_parse_str(avctx->codec->bsfs, &avci->bsf);
223
12654
    if (ret < 0) {
224
        av_log(avctx, AV_LOG_ERROR, "Error parsing decoder bitstream filters '%s': %s\n", avctx->codec->bsfs, av_err2str(ret));
225
        if (ret != AVERROR(ENOMEM))
226
            ret = AVERROR_BUG;
227
        goto fail;
228
    }
229
230
    /* We do not currently have an API for passing the input timebase into decoders,
231
     * but no filters used here should actually need it.
232
     * So we make up some plausible-looking number (the MPEG 90kHz timebase) */
233
12654
    avci->bsf->time_base_in = (AVRational){ 1, 90000 };
234
12654
    ret = avcodec_parameters_from_context(avci->bsf->par_in, avctx);
235
12654
    if (ret < 0)
236
        goto fail;
237
238
12654
    ret = av_bsf_init(avci->bsf);
239
12654
    if (ret < 0)
240
        goto fail;
241
242
12654
    return 0;
243
fail:
244
    av_bsf_free(&avci->bsf);
245
    return ret;
246
}
247
248
786009
int ff_decode_get_packet(AVCodecContext *avctx, AVPacket *pkt)
249
{
250
786009
    AVCodecInternal *avci = avctx->internal;
251
    int ret;
252
253
786009
    if (avci->draining)
254
2
        return AVERROR_EOF;
255
256
786007
    ret = av_bsf_receive_packet(avci->bsf, pkt);
257
786007
    if (ret == AVERROR_EOF)
258
5864
        avci->draining = 1;
259
786007
    if (ret < 0)
260
395888
        return ret;
261
262
390119
    ret = extract_packet_props(avctx->internal, pkt);
263
390119
    if (ret < 0)
264
        goto finish;
265
266
390119
    ret = apply_param_change(avctx, pkt);
267
390119
    if (ret < 0)
268
        goto finish;
269
270
390119
    if (avctx->codec->receive_frame)
271
92
        avci->compat_decode_consumed += pkt->size;
272
273
390119
    return 0;
274
finish:
275
    av_packet_unref(pkt);
276
    return ret;
277
}
278
279
/**
280
 * Attempt to guess proper monotonic timestamps for decoded video frames
281
 * which might have incorrect times. Input timestamps may wrap around, in
282
 * which case the output will as well.
283
 *
284
 * @param pts the pts field of the decoded AVPacket, as passed through
285
 * AVFrame.pts
286
 * @param dts the dts field of the decoded AVPacket
287
 * @return one of the input values, may be AV_NOPTS_VALUE
288
 */
289
410472
static int64_t guess_correct_pts(AVCodecContext *ctx,
290
                                 int64_t reordered_pts, int64_t dts)
291
{
292
410472
    int64_t pts = AV_NOPTS_VALUE;
293
294
410472
    if (dts != AV_NOPTS_VALUE) {
295
376101
        ctx->pts_correction_num_faulty_dts += dts <= ctx->pts_correction_last_dts;
296
376101
        ctx->pts_correction_last_dts = dts;
297
34371
    } else if (reordered_pts != AV_NOPTS_VALUE)
298
181
        ctx->pts_correction_last_dts = reordered_pts;
299
300
410472
    if (reordered_pts != AV_NOPTS_VALUE) {
301
347387
        ctx->pts_correction_num_faulty_pts += reordered_pts <= ctx->pts_correction_last_pts;
302
347387
        ctx->pts_correction_last_pts = reordered_pts;
303
63085
    } else if(dts != AV_NOPTS_VALUE)
304
28895
        ctx->pts_correction_last_pts = dts;
305
306

410472
    if ((ctx->pts_correction_num_faulty_pts<=ctx->pts_correction_num_faulty_dts || dts == AV_NOPTS_VALUE)
307
409657
       && reordered_pts != AV_NOPTS_VALUE)
308
346573
        pts = reordered_pts;
309
    else
310
63899
        pts = dts;
311
312
410472
    return pts;
313
}
314
315
/*
316
 * The core of the receive_frame_wrapper for the decoders implementing
317
 * the simple API. Certain decoders might consume partial packets without
318
 * returning any output, so this function needs to be called in a loop until it
319
 * returns EAGAIN.
320
 **/
321
820936
static inline int decode_simple_internal(AVCodecContext *avctx, AVFrame *frame)
322
{
323
820936
    AVCodecInternal   *avci = avctx->internal;
324
820936
    DecodeSimpleContext *ds = &avci->ds;
325
820936
    AVPacket           *pkt = ds->in_pkt;
326
    // copy to ensure we do not change pkt
327
    int got_frame, actual_got_frame;
328
    int ret;
329
330

820936
    if (!pkt->data && !avci->draining) {
331
785821
        av_packet_unref(pkt);
332
785821
        ret = ff_decode_get_packet(avctx, pkt);
333

785821
        if (ret < 0 && ret != AVERROR_EOF)
334
389932
            return ret;
335
    }
336
337
    // Some codecs (at least wma lossless) will crash when feeding drain packets
338
    // after EOF was signaled.
339
431004
    if (avci->draining_done)
340
6158
        return AVERROR_EOF;
341
342
424846
    if (!pkt->data &&
343
6584
        !(avctx->codec->capabilities & AV_CODEC_CAP_DELAY ||
344
5236
          avctx->active_thread_type & FF_THREAD_FRAME))
345
5187
        return AVERROR_EOF;
346
347
419659
    got_frame = 0;
348
349
419659
    if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME) {
350
582
        ret = ff_thread_decode_frame(avctx, frame, &got_frame, pkt);
351
    } else {
352
419077
        ret = avctx->codec->decode(avctx, frame, &got_frame, pkt);
353
354
419077
        if (!(avctx->codec->caps_internal & FF_CODEC_CAP_SETS_PKT_DTS))
355
418747
            frame->pkt_dts = pkt->dts;
356
419077
        if (avctx->codec->type == AVMEDIA_TYPE_VIDEO) {
357
116136
            if(!avctx->has_b_frames)
358
84143
                frame->pkt_pos = pkt->pos;
359
            //FIXME these should be under if(!avctx->has_b_frames)
360
            /* get_buffer is supposed to set frame parameters */
361
116136
            if (!(avctx->codec->capabilities & AV_CODEC_CAP_DR1)) {
362
21609
                if (!frame->sample_aspect_ratio.num)  frame->sample_aspect_ratio = avctx->sample_aspect_ratio;
363
21609
                if (!frame->width)                    frame->width               = avctx->width;
364
21609
                if (!frame->height)                   frame->height              = avctx->height;
365
21609
                if (frame->format == AV_PIX_FMT_NONE) frame->format              = avctx->pix_fmt;
366
            }
367
        }
368
    }
369
419659
    emms_c();
370
419659
    actual_got_frame = got_frame;
371
372
419659
    if (avctx->codec->type == AVMEDIA_TYPE_VIDEO) {
373
116246
        if (frame->flags & AV_FRAME_FLAG_DISCARD)
374
179
            got_frame = 0;
375
116246
        if (got_frame)
376
108462
            frame->best_effort_timestamp = guess_correct_pts(avctx,
377
                                                             frame->pts,
378
                                                             frame->pkt_dts);
379
303413
    } else if (avctx->codec->type == AVMEDIA_TYPE_AUDIO) {
380
        uint8_t *side;
381
        int side_size;
382
303413
        uint32_t discard_padding = 0;
383
303413
        uint8_t skip_reason = 0;
384
303413
        uint8_t discard_reason = 0;
385
386

303413
        if (ret >= 0 && got_frame) {
387
302010
            frame->best_effort_timestamp = guess_correct_pts(avctx,
388
                                                             frame->pts,
389
                                                             frame->pkt_dts);
390
302010
            if (frame->format == AV_SAMPLE_FMT_NONE)
391
                frame->format = avctx->sample_fmt;
392
302010
            if (!frame->channel_layout)
393
1316
                frame->channel_layout = avctx->channel_layout;
394
302010
            if (!frame->channels)
395
                frame->channels = avctx->channels;
396
302010
            if (!frame->sample_rate)
397
2
                frame->sample_rate = avctx->sample_rate;
398
        }
399
400
303413
        side= av_packet_get_side_data(avci->last_pkt_props, AV_PKT_DATA_SKIP_SAMPLES, &side_size);
401

303413
        if(side && side_size>=10) {
402
92
            avci->skip_samples = AV_RL32(side) * avci->skip_samples_multiplier;
403
92
            discard_padding = AV_RL32(side + 4);
404
92
            av_log(avctx, AV_LOG_DEBUG, "skip %d / discard %d samples due to side data\n",
405
                   avci->skip_samples, (int)discard_padding);
406
92
            skip_reason = AV_RL8(side + 8);
407
92
            discard_reason = AV_RL8(side + 9);
408
        }
409
410

303413
        if ((frame->flags & AV_FRAME_FLAG_DISCARD) && got_frame &&
411
15
            !(avctx->flags2 & AV_CODEC_FLAG2_SKIP_MANUAL)) {
412
15
            avci->skip_samples = FFMAX(0, avci->skip_samples - frame->nb_samples);
413
15
            got_frame = 0;
414
        }
415
416

303413
        if (avci->skip_samples > 0 && got_frame &&
417
143
            !(avctx->flags2 & AV_CODEC_FLAG2_SKIP_MANUAL)) {
418
143
            if(frame->nb_samples <= avci->skip_samples){
419
101
                got_frame = 0;
420
101
                avci->skip_samples -= frame->nb_samples;
421
101
                av_log(avctx, AV_LOG_DEBUG, "skip whole frame, skip left: %d\n",
422
                       avci->skip_samples);
423
            } else {
424
42
                av_samples_copy(frame->extended_data, frame->extended_data, 0, avci->skip_samples,
425
42
                                frame->nb_samples - avci->skip_samples, avctx->channels, frame->format);
426

84
                if(avctx->pkt_timebase.num && avctx->sample_rate) {
427
42
                    int64_t diff_ts = av_rescale_q(avci->skip_samples,
428
42
                                                   (AVRational){1, avctx->sample_rate},
429
                                                   avctx->pkt_timebase);
430
42
                    if(frame->pts!=AV_NOPTS_VALUE)
431
42
                        frame->pts += diff_ts;
432
#if FF_API_PKT_PTS
433
FF_DISABLE_DEPRECATION_WARNINGS
434
42
                    if(frame->pkt_pts!=AV_NOPTS_VALUE)
435
42
                        frame->pkt_pts += diff_ts;
436
FF_ENABLE_DEPRECATION_WARNINGS
437
#endif
438
42
                    if(frame->pkt_dts!=AV_NOPTS_VALUE)
439
42
                        frame->pkt_dts += diff_ts;
440
42
                    if (frame->pkt_duration >= diff_ts)
441
42
                        frame->pkt_duration -= diff_ts;
442
                } else {
443
                    av_log(avctx, AV_LOG_WARNING, "Could not update timestamps for skipped samples.\n");
444
                }
445
42
                av_log(avctx, AV_LOG_DEBUG, "skip %d/%d samples\n",
446
                       avci->skip_samples, frame->nb_samples);
447
42
                frame->nb_samples -= avci->skip_samples;
448
42
                avci->skip_samples = 0;
449
            }
450
        }
451
452

303413
        if (discard_padding > 0 && discard_padding <= frame->nb_samples && got_frame &&
453
5
            !(avctx->flags2 & AV_CODEC_FLAG2_SKIP_MANUAL)) {
454
5
            if (discard_padding == frame->nb_samples) {
455
2
                got_frame = 0;
456
            } else {
457

3
                if(avctx->pkt_timebase.num && avctx->sample_rate) {
458
3
                    int64_t diff_ts = av_rescale_q(frame->nb_samples - discard_padding,
459
3
                                                   (AVRational){1, avctx->sample_rate},
460
                                                   avctx->pkt_timebase);
461
3
                    frame->pkt_duration = diff_ts;
462
                } else {
463
                    av_log(avctx, AV_LOG_WARNING, "Could not update timestamps for discarded samples.\n");
464
                }
465
3
                av_log(avctx, AV_LOG_DEBUG, "discard %d/%d samples\n",
466
                       (int)discard_padding, frame->nb_samples);
467
3
                frame->nb_samples -= discard_padding;
468
            }
469
        }
470
471

303413
        if ((avctx->flags2 & AV_CODEC_FLAG2_SKIP_MANUAL) && got_frame) {
472
            AVFrameSideData *fside = av_frame_new_side_data(frame, AV_FRAME_DATA_SKIP_SAMPLES, 10);
473
            if (fside) {
474
                AV_WL32(fside->data, avci->skip_samples);
475
                AV_WL32(fside->data + 4, discard_padding);
476
                AV_WL8(fside->data + 8, skip_reason);
477
                AV_WL8(fside->data + 9, discard_reason);
478
                avci->skip_samples = 0;
479
            }
480
        }
481
    }
482
483
419659
    if (avctx->codec->type == AVMEDIA_TYPE_AUDIO &&
484

303413
        !avci->showed_multi_packet_warning &&
485

278535
        ret >= 0 && ret != pkt->size && !(avctx->codec->capabilities & AV_CODEC_CAP_SUBFRAMES)) {
486
11
        av_log(avctx, AV_LOG_WARNING, "Multiple frames in a packet.\n");
487
11
        avci->showed_multi_packet_warning = 1;
488
    }
489
490
419659
    if (!got_frame)
491
9305
        av_frame_unref(frame);
492
493

419659
    if (ret >= 0 && avctx->codec->type == AVMEDIA_TYPE_VIDEO && !(avctx->flags & AV_CODEC_FLAG_TRUNCATED))
494
115223
        ret = pkt->size;
495
496
#if FF_API_AVCTX_TIMEBASE
497

419659
    if (avctx->framerate.num > 0 && avctx->framerate.den > 0)
498
85017
        avctx->time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1}));
499
#endif
500
501
    /* do not stop draining when actual_got_frame != 0 or ret < 0 */
502
    /* got_frame == 0 but actual_got_frame != 0 when frame is discarded */
503

419659
    if (avci->draining && !actual_got_frame) {
504
661
        if (ret < 0) {
505
            /* prevent infinite loop if a decoder wrongly always return error on draining */
506
            /* reasonable nb_errors_max = maximum b frames + thread count */
507
1
            int nb_errors_max = 20 + (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME ?
508
                                avctx->thread_count : 1);
509
510
1
            if (avci->nb_draining_errors++ >= nb_errors_max) {
511
                av_log(avctx, AV_LOG_ERROR, "Too many errors when draining, this is a bug. "
512
                       "Stop draining and force EOF.\n");
513
                avci->draining_done = 1;
514
                ret = AVERROR_BUG;
515
            }
516
        } else {
517
660
            avci->draining_done = 1;
518
        }
519
    }
520
521
419659
    avci->compat_decode_consumed += ret;
522
523

419659
    if (ret >= pkt->size || ret < 0) {
524
391424
        av_packet_unref(pkt);
525
391424
        av_packet_unref(avci->last_pkt_props);
526
    } else {
527
28235
        int consumed = ret;
528
529
28235
        pkt->data                += consumed;
530
28235
        pkt->size                -= consumed;
531
28235
        avci->last_pkt_props->size -= consumed; // See extract_packet_props() comment.
532
28235
        pkt->pts                  = AV_NOPTS_VALUE;
533
28235
        pkt->dts                  = AV_NOPTS_VALUE;
534
28235
        avci->last_pkt_props->pts = AV_NOPTS_VALUE;
535
28235
        avci->last_pkt_props->dts = AV_NOPTS_VALUE;
536
    }
537
538
419659
    if (got_frame)
539
410354
        av_assert0(frame->buf[0]);
540
541
419659
    return ret < 0 ? ret : 0;
542
}
543
544
812618
static int decode_simple_receive_frame(AVCodecContext *avctx, AVFrame *frame)
545
{
546
    int ret;
547
548
1231290
    while (!frame->buf[0]) {
549
820936
        ret = decode_simple_internal(avctx, frame);
550
820936
        if (ret < 0)
551
402264
            return ret;
552
    }
553
554
410354
    return 0;
555
}
556
557
812886
static int decode_receive_frame_internal(AVCodecContext *avctx, AVFrame *frame)
558
{
559
812886
    AVCodecInternal *avci = avctx->internal;
560
    int ret;
561
562
812886
    av_assert0(!frame->buf[0]);
563
564
812886
    if (avctx->codec->receive_frame) {
565
268
        ret = avctx->codec->receive_frame(avctx, frame);
566
268
        if (ret != AVERROR(EAGAIN))
567
176
            av_packet_unref(avci->last_pkt_props);
568
    } else
569
812618
        ret = decode_simple_receive_frame(avctx, frame);
570
571
812886
    if (ret == AVERROR_EOF)
572
11349
        avci->draining_done = 1;
573
574
812886
    if (!ret) {
575
        /* the only case where decode data is not set should be decoders
576
         * that do not call ff_get_buffer() */
577

410526
        av_assert0((frame->private_ref && frame->private_ref->size == sizeof(FrameDecodeData)) ||
578
                   !(avctx->codec->capabilities & AV_CODEC_CAP_DR1));
579
580
410526
        if (frame->private_ref) {
581
389126
            FrameDecodeData *fdd = (FrameDecodeData*)frame->private_ref->data;
582
583
389126
            if (fdd->post_process) {
584
                ret = fdd->post_process(avctx, frame);
585
                if (ret < 0) {
586
                    av_frame_unref(frame);
587
                    return ret;
588
                }
589
            }
590
        }
591
    }
592
593
    /* free the per-frame decode data */
594
812886
    av_buffer_unref(&frame->private_ref);
595
596
812886
    return ret;
597
}
598
599
396640
int attribute_align_arg avcodec_send_packet(AVCodecContext *avctx, const AVPacket *avpkt)
600
{
601
396640
    AVCodecInternal *avci = avctx->internal;
602
    int ret;
603
604

396640
    if (!avcodec_is_open(avctx) || !av_codec_is_decoder(avctx->codec))
605
        return AVERROR(EINVAL);
606
607
396640
    if (avctx->internal->draining)
608
720
        return AVERROR_EOF;
609
610

395920
    if (avpkt && !avpkt->size && avpkt->data)
611
        return AVERROR(EINVAL);
612
613
395920
    av_packet_unref(avci->buffer_pkt);
614

395920
    if (avpkt && (avpkt->data || avpkt->side_data_elems)) {
615
390056
        ret = av_packet_ref(avci->buffer_pkt, avpkt);
616
390056
        if (ret < 0)
617
            return ret;
618
    }
619
620
395920
    ret = av_bsf_send_packet(avci->bsf, avci->buffer_pkt);
621
395920
    if (ret < 0) {
622
        av_packet_unref(avci->buffer_pkt);
623
        return ret;
624
    }
625
626
395920
    if (!avci->buffer_frame->buf[0]) {
627
395920
        ret = decode_receive_frame_internal(avctx, avci->buffer_frame);
628

395920
        if (ret < 0 && ret != AVERROR(EAGAIN) && ret != AVERROR_EOF)
629
982
            return ret;
630
    }
631
632
394938
    return 0;
633
}
634
635
108462
static int apply_cropping(AVCodecContext *avctx, AVFrame *frame)
636
{
637
    /* make sure we are noisy about decoders returning invalid cropping data */
638
108462
    if (frame->crop_left >= INT_MAX - frame->crop_right        ||
639
108462
        frame->crop_top  >= INT_MAX - frame->crop_bottom       ||
640
108462
        (frame->crop_left + frame->crop_right) >= frame->width ||
641
108462
        (frame->crop_top + frame->crop_bottom) >= frame->height) {
642
        av_log(avctx, AV_LOG_WARNING,
643
               "Invalid cropping information set by a decoder: "
644
               "%"SIZE_SPECIFIER"/%"SIZE_SPECIFIER"/%"SIZE_SPECIFIER"/%"SIZE_SPECIFIER" "
645
               "(frame size %dx%d). This is a bug, please report it\n",
646
               frame->crop_left, frame->crop_right, frame->crop_top, frame->crop_bottom,
647
               frame->width, frame->height);
648
        frame->crop_left   = 0;
649
        frame->crop_right  = 0;
650
        frame->crop_top    = 0;
651
        frame->crop_bottom = 0;
652
        return 0;
653
    }
654
655
108462
    if (!avctx->apply_cropping)
656
        return 0;
657
658
108462
    return av_frame_apply_cropping(frame, avctx->flags & AV_CODEC_FLAG_UNALIGNED ?
659
                                          AV_FRAME_CROP_UNALIGNED : 0);
660
}
661
662
800070
int attribute_align_arg avcodec_receive_frame(AVCodecContext *avctx, AVFrame *frame)
663
{
664
800070
    AVCodecInternal *avci = avctx->internal;
665
    int ret, changed;
666
667
800070
    av_frame_unref(frame);
668
669

800070
    if (!avcodec_is_open(avctx) || !av_codec_is_decoder(avctx->codec))
670
        return AVERROR(EINVAL);
671
672
800070
    if (avci->buffer_frame->buf[0]) {
673
383104
        av_frame_move_ref(frame, avci->buffer_frame);
674
    } else {
675
416966
        ret = decode_receive_frame_internal(avctx, frame);
676
416966
        if (ret < 0)
677
389544
            return ret;
678
    }
679
680
410526
    if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
681
108462
        ret = apply_cropping(avctx, frame);
682
108462
        if (ret < 0) {
683
            av_frame_unref(frame);
684
            return ret;
685
        }
686
    }
687
688
410526
    avctx->frame_number++;
689
690
410526
    if (avctx->flags & AV_CODEC_FLAG_DROPCHANGED) {
691
692
        if (avctx->frame_number == 1) {
693
            avci->initial_format = frame->format;
694
            switch(avctx->codec_type) {
695
            case AVMEDIA_TYPE_VIDEO:
696
                avci->initial_width  = frame->width;
697
                avci->initial_height = frame->height;
698
                break;
699
            case AVMEDIA_TYPE_AUDIO:
700
                avci->initial_sample_rate = frame->sample_rate ? frame->sample_rate :
701
                                                                 avctx->sample_rate;
702
                avci->initial_channels       = frame->channels;
703
                avci->initial_channel_layout = frame->channel_layout;
704
                break;
705
            }
706
        }
707
708
        if (avctx->frame_number > 1) {
709
            changed = avci->initial_format != frame->format;
710
711
            switch(avctx->codec_type) {
712
            case AVMEDIA_TYPE_VIDEO:
713
                changed |= avci->initial_width  != frame->width ||
714
                           avci->initial_height != frame->height;
715
                break;
716
            case AVMEDIA_TYPE_AUDIO:
717
                changed |= avci->initial_sample_rate    != frame->sample_rate ||
718
                           avci->initial_sample_rate    != avctx->sample_rate ||
719
                           avci->initial_channels       != frame->channels ||
720
                           avci->initial_channel_layout != frame->channel_layout;
721
                break;
722
            }
723
724
            if (changed) {
725
                avci->changed_frames_dropped++;
726
                av_log(avctx, AV_LOG_INFO, "dropped changed frame #%d pts %"PRId64
727
                                            " drop count: %d \n",
728
                                            avctx->frame_number, frame->pts,
729
                                            avci->changed_frames_dropped);
730
                av_frame_unref(frame);
731
                return AVERROR_INPUT_CHANGED;
732
            }
733
        }
734
    }
735
410526
    return 0;
736
}
737
738
7041
static int compat_decode(AVCodecContext *avctx, AVFrame *frame,
739
                         int *got_frame, const AVPacket *pkt)
740
{
741
7041
    AVCodecInternal *avci = avctx->internal;
742
7041
    int ret = 0;
743
744
7041
    av_assert0(avci->compat_decode_consumed == 0);
745
746

7041
    if (avci->draining_done && pkt && pkt->size != 0) {
747
        av_log(avctx, AV_LOG_WARNING, "Got unexpected packet after EOF\n");
748
        avcodec_flush_buffers(avctx);
749
    }
750
751
7041
    *got_frame = 0;
752
753
7041
    if (avci->compat_decode_partial_size > 0 &&
754
        avci->compat_decode_partial_size != pkt->size) {
755
        av_log(avctx, AV_LOG_ERROR,
756
               "Got unexpected packet size after a partial decode\n");
757
        ret = AVERROR(EINVAL);
758
        goto finish;
759
    }
760
761
7041
    if (!avci->compat_decode_partial_size) {
762
7041
        ret = avcodec_send_packet(avctx, pkt);
763
7041
        if (ret == AVERROR_EOF)
764
49
            ret = 0;
765
6992
        else if (ret == AVERROR(EAGAIN)) {
766
            /* we fully drain all the output in each decode call, so this should not
767
             * ever happen */
768
            ret = AVERROR_BUG;
769
            goto finish;
770
6992
        } else if (ret < 0)
771
            goto finish;
772
    }
773
774
13962
    while (ret >= 0) {
775
13962
        ret = avcodec_receive_frame(avctx, frame);
776
13962
        if (ret < 0) {
777

6992
            if (ret == AVERROR(EAGAIN) || ret == AVERROR_EOF)
778
6992
                ret = 0;
779
6992
            goto finish;
780
        }
781
782
6970
        if (frame != avci->compat_decode_frame) {
783
6970
            if (!avctx->refcounted_frames) {
784
3522
                ret = unrefcount_frame(avci, frame);
785
3522
                if (ret < 0)
786
                    goto finish;
787
            }
788
789
6970
            *got_frame = 1;
790
6970
            frame = avci->compat_decode_frame;
791
        } else {
792
            if (!avci->compat_decode_warned) {
793
                av_log(avctx, AV_LOG_WARNING, "The deprecated avcodec_decode_* "
794
                       "API cannot return all the frames for this decoder. "
795
                       "Some frames will be dropped. Update your code to the "
796
                       "new decoding API to fix this.\n");
797
                avci->compat_decode_warned = 1;
798
            }
799
        }
800
801

6970
        if (avci->draining || (!avctx->codec->bsfs && avci->compat_decode_consumed < pkt->size))
802
            break;
803
    }
804
805
49
finish:
806
7041
    if (ret == 0) {
807
        /* if there are any bsfs then assume full packet is always consumed */
808
7041
        if (avctx->codec->bsfs)
809
            ret = pkt->size;
810
        else
811
7041
            ret = FFMIN(avci->compat_decode_consumed, pkt->size);
812
    }
813
7041
    avci->compat_decode_consumed = 0;
814
7041
    avci->compat_decode_partial_size = (ret >= 0) ? pkt->size - ret : 0;
815
816
7041
    return ret;
817
}
818
819
3499
int attribute_align_arg avcodec_decode_video2(AVCodecContext *avctx, AVFrame *picture,
820
                                              int *got_picture_ptr,
821
                                              const AVPacket *avpkt)
822
{
823
3499
    return compat_decode(avctx, picture, got_picture_ptr, avpkt);
824
}
825
826
3542
int attribute_align_arg avcodec_decode_audio4(AVCodecContext *avctx,
827
                                              AVFrame *frame,
828
                                              int *got_frame_ptr,
829
                                              const AVPacket *avpkt)
830
{
831
3542
    return compat_decode(avctx, frame, got_frame_ptr, avpkt);
832
}
833
834
1273
static void get_subtitle_defaults(AVSubtitle *sub)
835
{
836
1273
    memset(sub, 0, sizeof(*sub));
837
1273
    sub->pts = AV_NOPTS_VALUE;
838
1273
}
839
840
#define UTF8_MAX_BYTES 4 /* 5 and 6 bytes sequences should not be used */
841
1243
static int recode_subtitle(AVCodecContext *avctx,
842
                           AVPacket *outpkt, const AVPacket *inpkt)
843
{
844
#if CONFIG_ICONV
845
1243
    iconv_t cd = (iconv_t)-1;
846
1243
    int ret = 0;
847
    char *inb, *outb;
848
    size_t inl, outl;
849
    AVPacket tmp;
850
#endif
851
852

1243
    if (avctx->sub_charenc_mode != FF_SUB_CHARENC_MODE_PRE_DECODER || inpkt->size == 0)
853
1150
        return 0;
854
855
#if CONFIG_ICONV
856
93
    cd = iconv_open("UTF-8", avctx->sub_charenc);
857
93
    av_assert0(cd != (iconv_t)-1);
858
859
93
    inb = inpkt->data;
860
93
    inl = inpkt->size;
861
862
93
    if (inl >= INT_MAX / UTF8_MAX_BYTES - AV_INPUT_BUFFER_PADDING_SIZE) {
863
        av_log(avctx, AV_LOG_ERROR, "Subtitles packet is too big for recoding\n");
864
        ret = AVERROR(ENOMEM);
865
        goto end;
866
    }
867
868
93
    ret = av_new_packet(&tmp, inl * UTF8_MAX_BYTES);
869
93
    if (ret < 0)
870
        goto end;
871
93
    outpkt->buf  = tmp.buf;
872
93
    outpkt->data = tmp.data;
873
93
    outpkt->size = tmp.size;
874
93
    outb = outpkt->data;
875
93
    outl = outpkt->size;
876
877

186
    if (iconv(cd, &inb, &inl, &outb, &outl) == (size_t)-1 ||
878
93
        iconv(cd, NULL, NULL, &outb, &outl) == (size_t)-1 ||
879

93
        outl >= outpkt->size || inl != 0) {
880
        ret = FFMIN(AVERROR(errno), -1);
881
        av_log(avctx, AV_LOG_ERROR, "Unable to recode subtitle event \"%s\" "
882
               "from %s to UTF-8\n", inpkt->data, avctx->sub_charenc);
883
        av_packet_unref(&tmp);
884
        goto end;
885
    }
886
93
    outpkt->size -= outl;
887
93
    memset(outpkt->data + outpkt->size, 0, outl);
888
889
93
end:
890
93
    if (cd != (iconv_t)-1)
891
93
        iconv_close(cd);
892
93
    return ret;
893
#else
894
    av_log(avctx, AV_LOG_ERROR, "requesting subtitles recoding without iconv");
895
    return AVERROR(EINVAL);
896
#endif
897
}
898
899
552
static int utf8_check(const uint8_t *str)
900
{
901
    const uint8_t *byte;
902
    uint32_t codepoint, min;
903
904
46245
    while (*str) {
905
45693
        byte = str;
906


48466
        GET_UTF8(codepoint, *(byte++), return 0;);
907

46389
        min = byte - str == 1 ? 0 : byte - str == 2 ? 0x80 :
908
696
              1 << (5 * (byte - str) - 4);
909

45693
        if (codepoint < min || codepoint >= 0x110000 ||
910
45693
            codepoint == 0xFFFE /* BOM */ ||
911
            codepoint >= 0xD800 && codepoint <= 0xDFFF /* surrogates */)
912
            return 0;
913
45693
        str = byte;
914
    }
915
552
    return 1;
916
}
917
918
#if FF_API_ASS_TIMING
919
static void insert_ts(AVBPrint *buf, int ts)
920
{
921
    if (ts == -1) {
922
        av_bprintf(buf, "9:59:59.99,");
923
    } else {
924
        int h, m, s;
925
926
        h = ts/360000;  ts -= 360000*h;
927
        m = ts/  6000;  ts -=   6000*m;
928
        s = ts/   100;  ts -=    100*s;
929
        av_bprintf(buf, "%d:%02d:%02d.%02d,", h, m, s, ts);
930
    }
931
}
932
933
static int convert_sub_to_old_ass_form(AVSubtitle *sub, const AVPacket *pkt, AVRational tb)
934
{
935
    int i;
936
    AVBPrint buf;
937
938
    av_bprint_init(&buf, 0, AV_BPRINT_SIZE_UNLIMITED);
939
940
    for (i = 0; i < sub->num_rects; i++) {
941
        char *final_dialog;
942
        const char *dialog;
943
        AVSubtitleRect *rect = sub->rects[i];
944
        int ts_start, ts_duration = -1;
945
        long int layer;
946
947
        if (rect->type != SUBTITLE_ASS || !strncmp(rect->ass, "Dialogue: ", 10))
948
            continue;
949
950
        av_bprint_clear(&buf);
951
952
        /* skip ReadOrder */
953
        dialog = strchr(rect->ass, ',');
954
        if (!dialog)
955
            continue;
956
        dialog++;
957
958
        /* extract Layer or Marked */
959
        layer = strtol(dialog, (char**)&dialog, 10);
960
        if (*dialog != ',')
961
            continue;
962
        dialog++;
963
964
        /* rescale timing to ASS time base (ms) */
965
        ts_start = av_rescale_q(pkt->pts, tb, av_make_q(1, 100));
966
        if (pkt->duration != -1)
967
            ts_duration = av_rescale_q(pkt->duration, tb, av_make_q(1, 100));
968
        sub->end_display_time = FFMAX(sub->end_display_time, 10 * ts_duration);
969
970
        /* construct ASS (standalone file form with timestamps) string */
971
        av_bprintf(&buf, "Dialogue: %ld,", layer);
972
        insert_ts(&buf, ts_start);
973
        insert_ts(&buf, ts_duration == -1 ? -1 : ts_start + ts_duration);
974
        av_bprintf(&buf, "%s\r\n", dialog);
975
976
        final_dialog = av_strdup(buf.str);
977
        if (!av_bprint_is_complete(&buf) || !final_dialog) {
978
            av_freep(&final_dialog);
979
            av_bprint_finalize(&buf, NULL);
980
            return AVERROR(ENOMEM);
981
        }
982
        av_freep(&rect->ass);
983
        rect->ass = final_dialog;
984
    }
985
986
    av_bprint_finalize(&buf, NULL);
987
    return 0;
988
}
989
#endif
990
991
1273
int avcodec_decode_subtitle2(AVCodecContext *avctx, AVSubtitle *sub,
992
                             int *got_sub_ptr,
993
                             AVPacket *avpkt)
994
{
995
1273
    int i, ret = 0;
996
997

1273
    if (!avpkt->data && avpkt->size) {
998
        av_log(avctx, AV_LOG_ERROR, "invalid packet: NULL data, size != 0\n");
999
        return AVERROR(EINVAL);
1000
    }
1001
1273
    if (!avctx->codec)
1002
        return AVERROR(EINVAL);
1003
1273
    if (avctx->codec->type != AVMEDIA_TYPE_SUBTITLE) {
1004
        av_log(avctx, AV_LOG_ERROR, "Invalid media type for subtitles\n");
1005
        return AVERROR(EINVAL);
1006
    }
1007
1008
1273
    *got_sub_ptr = 0;
1009
1273
    get_subtitle_defaults(sub);
1010
1011

1273
    if ((avctx->codec->capabilities & AV_CODEC_CAP_DELAY) || avpkt->size) {
1012
1243
        AVPacket pkt_recoded = *avpkt;
1013
1014
1243
        ret = recode_subtitle(avctx, &pkt_recoded, avpkt);
1015
1243
        if (ret < 0) {
1016
            *got_sub_ptr = 0;
1017
        } else {
1018
1243
             ret = extract_packet_props(avctx->internal, &pkt_recoded);
1019
1243
             if (ret < 0)
1020
                return ret;
1021
1022

1243
            if (avctx->pkt_timebase.num && avpkt->pts != AV_NOPTS_VALUE)
1023
1237
                sub->pts = av_rescale_q(avpkt->pts,
1024
1237
                                        avctx->pkt_timebase, AV_TIME_BASE_Q);
1025
1243
            ret = avctx->codec->decode(avctx, sub, got_sub_ptr, &pkt_recoded);
1026
            av_assert1((ret >= 0) >= !!*got_sub_ptr &&
1027
                       !!*got_sub_ptr >= !!sub->num_rects);
1028
1029
#if FF_API_ASS_TIMING
1030
1243
            if (avctx->sub_text_format == FF_SUB_TEXT_FMT_ASS_WITH_TIMINGS
1031

1
                && *got_sub_ptr && sub->num_rects) {
1032
                const AVRational tb = avctx->pkt_timebase.num ? avctx->pkt_timebase
1033
                                                              : avctx->time_base;
1034
                int err = convert_sub_to_old_ass_form(sub, avpkt, tb);
1035
                if (err < 0)
1036
                    ret = err;
1037
            }
1038
#endif
1039
1040

1243
            if (sub->num_rects && !sub->end_display_time && avpkt->duration &&
1041
380
                avctx->pkt_timebase.num) {
1042
380
                AVRational ms = { 1, 1000 };
1043
380
                sub->end_display_time = av_rescale_q(avpkt->duration,
1044
                                                     avctx->pkt_timebase, ms);
1045
            }
1046
1047
1243
            if (avctx->codec_descriptor->props & AV_CODEC_PROP_BITMAP_SUB)
1048
150
                sub->format = 0;
1049
1093
            else if (avctx->codec_descriptor->props & AV_CODEC_PROP_TEXT_SUB)
1050
1093
                sub->format = 1;
1051
1052
1950
            for (i = 0; i < sub->num_rects; i++) {
1053
707
                if (avctx->sub_charenc_mode != FF_SUB_CHARENC_MODE_IGNORE &&
1054

707
                    sub->rects[i]->ass && !utf8_check(sub->rects[i]->ass)) {
1055
                    av_log(avctx, AV_LOG_ERROR,
1056
                           "Invalid UTF-8 in decoded subtitles text; "
1057
                           "maybe missing -sub_charenc option\n");
1058
                    avsubtitle_free(sub);
1059
                    ret = AVERROR_INVALIDDATA;
1060
                    break;
1061
                }
1062
            }
1063
1064
1243
            if (avpkt->data != pkt_recoded.data) { // did we recode?
1065
                /* prevent from destroying side data from original packet */
1066
93
                pkt_recoded.side_data = NULL;
1067
93
                pkt_recoded.side_data_elems = 0;
1068
1069
93
                av_packet_unref(&pkt_recoded);
1070
            }
1071
        }
1072
1073
1243
        if (*got_sub_ptr)
1074
685
            avctx->frame_number++;
1075
    }
1076
1077
1273
    return ret;
1078
}
1079
1080
1394
enum AVPixelFormat avcodec_default_get_format(struct AVCodecContext *avctx,
1081
                                              const enum AVPixelFormat *fmt)
1082
{
1083
    const AVPixFmtDescriptor *desc;
1084
    const AVCodecHWConfig *config;
1085
    int i, n;
1086
1087
    // If a device was supplied when the codec was opened, assume that the
1088
    // user wants to use it.
1089

1394
    if (avctx->hw_device_ctx && avctx->codec->hw_configs) {
1090
        AVHWDeviceContext *device_ctx =
1091
            (AVHWDeviceContext*)avctx->hw_device_ctx->data;
1092
        for (i = 0;; i++) {
1093
            config = &avctx->codec->hw_configs[i]->public;
1094
            if (!config)
1095
                break;
1096
            if (!(config->methods &
1097
                  AV_CODEC_HW_CONFIG_METHOD_HW_DEVICE_CTX))
1098
                continue;
1099
            if (device_ctx->type != config->device_type)
1100
                continue;
1101
            for (n = 0; fmt[n] != AV_PIX_FMT_NONE; n++) {
1102
                if (config->pix_fmt == fmt[n])
1103
                    return fmt[n];
1104
            }
1105
        }
1106
    }
1107
    // No device or other setup, so we have to choose from things which
1108
    // don't any other external information.
1109
1110
    // If the last element of the list is a software format, choose it
1111
    // (this should be best software format if any exist).
1112
4945
    for (n = 0; fmt[n] != AV_PIX_FMT_NONE; n++);
1113
1394
    desc = av_pix_fmt_desc_get(fmt[n - 1]);
1114
1394
    if (!(desc->flags & AV_PIX_FMT_FLAG_HWACCEL))
1115
1394
        return fmt[n - 1];
1116
1117
    // Finally, traverse the list in order and choose the first entry
1118
    // with no external dependencies (if there is no hardware configuration
1119
    // information available then this just picks the first entry).
1120
    for (n = 0; fmt[n] != AV_PIX_FMT_NONE; n++) {
1121
        for (i = 0;; i++) {
1122
            config = avcodec_get_hw_config(avctx->codec, i);
1123
            if (!config)
1124
                break;
1125
            if (config->pix_fmt == fmt[n])
1126
                break;
1127
        }
1128
        if (!config) {
1129
            // No specific config available, so the decoder must be able
1130
            // to handle this format without any additional setup.
1131
            return fmt[n];
1132
        }
1133
        if (config->methods & AV_CODEC_HW_CONFIG_METHOD_INTERNAL) {
1134
            // Usable with only internal setup.
1135
            return fmt[n];
1136
        }
1137
    }
1138
1139
    // Nothing is usable, give up.
1140
    return AV_PIX_FMT_NONE;
1141
}
1142
1143
int ff_decode_get_hw_frames_ctx(AVCodecContext *avctx,
1144
                                enum AVHWDeviceType dev_type)
1145
{
1146
    AVHWDeviceContext *device_ctx;
1147
    AVHWFramesContext *frames_ctx;
1148
    int ret;
1149
1150
    if (!avctx->hwaccel)
1151
        return AVERROR(ENOSYS);
1152
1153
    if (avctx->hw_frames_ctx)
1154
        return 0;
1155
    if (!avctx->hw_device_ctx) {
1156
        av_log(avctx, AV_LOG_ERROR, "A hardware frames or device context is "
1157
                "required for hardware accelerated decoding.\n");
1158
        return AVERROR(EINVAL);
1159
    }
1160
1161
    device_ctx = (AVHWDeviceContext *)avctx->hw_device_ctx->data;
1162
    if (device_ctx->type != dev_type) {
1163
        av_log(avctx, AV_LOG_ERROR, "Device type %s expected for hardware "
1164
               "decoding, but got %s.\n", av_hwdevice_get_type_name(dev_type),
1165
               av_hwdevice_get_type_name(device_ctx->type));
1166
        return AVERROR(EINVAL);
1167
    }
1168
1169
    ret = avcodec_get_hw_frames_parameters(avctx,
1170
                                           avctx->hw_device_ctx,
1171
                                           avctx->hwaccel->pix_fmt,
1172
                                           &avctx->hw_frames_ctx);
1173
    if (ret < 0)
1174
        return ret;
1175
1176
    frames_ctx = (AVHWFramesContext*)avctx->hw_frames_ctx->data;
1177
1178
1179
    if (frames_ctx->initial_pool_size) {
1180
        // We guarantee 4 base work surfaces. The function above guarantees 1
1181
        // (the absolute minimum), so add the missing count.
1182
        frames_ctx->initial_pool_size += 3;
1183
    }
1184
1185
    ret = av_hwframe_ctx_init(avctx->hw_frames_ctx);
1186
    if (ret < 0) {
1187
        av_buffer_unref(&avctx->hw_frames_ctx);
1188
        return ret;
1189
    }
1190
1191
    return 0;
1192
}
1193
1194
int avcodec_get_hw_frames_parameters(AVCodecContext *avctx,
1195
                                     AVBufferRef *device_ref,
1196
                                     enum AVPixelFormat hw_pix_fmt,
1197
                                     AVBufferRef **out_frames_ref)
1198
{
1199
    AVBufferRef *frames_ref = NULL;
1200
    const AVCodecHWConfigInternal *hw_config;
1201
    const AVHWAccel *hwa;
1202
    int i, ret;
1203
1204
    for (i = 0;; i++) {
1205
        hw_config = avctx->codec->hw_configs[i];
1206
        if (!hw_config)
1207
            return AVERROR(ENOENT);
1208
        if (hw_config->public.pix_fmt == hw_pix_fmt)
1209
            break;
1210
    }
1211
1212
    hwa = hw_config->hwaccel;
1213
    if (!hwa || !hwa->frame_params)
1214
        return AVERROR(ENOENT);
1215
1216
    frames_ref = av_hwframe_ctx_alloc(device_ref);
1217
    if (!frames_ref)
1218
        return AVERROR(ENOMEM);
1219
1220
    ret = hwa->frame_params(avctx, frames_ref);
1221
    if (ret >= 0) {
1222
        AVHWFramesContext *frames_ctx = (AVHWFramesContext*)frames_ref->data;
1223
1224
        if (frames_ctx->initial_pool_size) {
1225
            // If the user has requested that extra output surfaces be
1226
            // available then add them here.
1227
            if (avctx->extra_hw_frames > 0)
1228
                frames_ctx->initial_pool_size += avctx->extra_hw_frames;
1229
1230
            // If frame threading is enabled then an extra surface per thread
1231
            // is also required.
1232
            if (avctx->active_thread_type & FF_THREAD_FRAME)
1233
                frames_ctx->initial_pool_size += avctx->thread_count;
1234
        }
1235
1236
        *out_frames_ref = frames_ref;
1237
    } else {
1238
        av_buffer_unref(&frames_ref);
1239
    }
1240
    return ret;
1241
}
1242
1243
static int hwaccel_init(AVCodecContext *avctx,
1244
                        const AVCodecHWConfigInternal *hw_config)
1245
{
1246
    const AVHWAccel *hwaccel;
1247
    int err;
1248
1249
    hwaccel = hw_config->hwaccel;
1250
    if (hwaccel->capabilities & AV_HWACCEL_CODEC_CAP_EXPERIMENTAL &&
1251
        avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
1252
        av_log(avctx, AV_LOG_WARNING, "Ignoring experimental hwaccel: %s\n",
1253
               hwaccel->name);
1254
        return AVERROR_PATCHWELCOME;
1255
    }
1256
1257
    if (hwaccel->priv_data_size) {
1258
        avctx->internal->hwaccel_priv_data =
1259
            av_mallocz(hwaccel->priv_data_size);
1260
        if (!avctx->internal->hwaccel_priv_data)
1261
            return AVERROR(ENOMEM);
1262
    }
1263
1264
    avctx->hwaccel = hwaccel;
1265
    if (hwaccel->init) {
1266
        err = hwaccel->init(avctx);
1267
        if (err < 0) {
1268
            av_log(avctx, AV_LOG_ERROR, "Failed setup for format %s: "
1269
                   "hwaccel initialisation returned error.\n",
1270
                   av_get_pix_fmt_name(hw_config->public.pix_fmt));
1271
            av_freep(&avctx->internal->hwaccel_priv_data);
1272
            avctx->hwaccel = NULL;
1273
            return err;
1274
        }
1275
    }
1276
1277
    return 0;
1278
}
1279
1280
2323
static void hwaccel_uninit(AVCodecContext *avctx)
1281
{
1282

2323
    if (avctx->hwaccel && avctx->hwaccel->uninit)
1283
        avctx->hwaccel->uninit(avctx);
1284
1285
2323
    av_freep(&avctx->internal->hwaccel_priv_data);
1286
1287
2323
    avctx->hwaccel = NULL;
1288
1289
2323
    av_buffer_unref(&avctx->hw_frames_ctx);
1290
2323
}
1291
1292
2323
int ff_get_format(AVCodecContext *avctx, const enum AVPixelFormat *fmt)
1293
{
1294
    const AVPixFmtDescriptor *desc;
1295
    enum AVPixelFormat *choices;
1296
    enum AVPixelFormat ret, user_choice;
1297
    const AVCodecHWConfigInternal *hw_config;
1298
    const AVCodecHWConfig *config;
1299
    int i, n, err;
1300
1301
    // Find end of list.
1302
8421
    for (n = 0; fmt[n] != AV_PIX_FMT_NONE; n++);
1303
    // Must contain at least one entry.
1304
2323
    av_assert0(n >= 1);
1305
    // If a software format is available, it must be the last entry.
1306
2323
    desc = av_pix_fmt_desc_get(fmt[n - 1]);
1307
2323
    if (desc->flags & AV_PIX_FMT_FLAG_HWACCEL) {
1308
        // No software format is available.
1309
    } else {
1310
2323
        avctx->sw_pix_fmt = fmt[n - 1];
1311
    }
1312
1313
2323
    choices = av_malloc_array(n + 1, sizeof(*choices));
1314
2323
    if (!choices)
1315
        return AV_PIX_FMT_NONE;
1316
1317
2323
    memcpy(choices, fmt, (n + 1) * sizeof(*choices));
1318
1319
    for (;;) {
1320
        // Remove the previous hwaccel, if there was one.
1321
2323
        hwaccel_uninit(avctx);
1322
1323
2323
        user_choice = avctx->get_format(avctx, choices);
1324
2323
        if (user_choice == AV_PIX_FMT_NONE) {
1325
            // Explicitly chose nothing, give up.
1326
            ret = AV_PIX_FMT_NONE;
1327
            break;
1328
        }
1329
1330
2323
        desc = av_pix_fmt_desc_get(user_choice);
1331
2323
        if (!desc) {
1332
            av_log(avctx, AV_LOG_ERROR, "Invalid format returned by "
1333
                   "get_format() callback.\n");
1334
            ret = AV_PIX_FMT_NONE;
1335
            break;
1336
        }
1337
2323
        av_log(avctx, AV_LOG_DEBUG, "Format %s chosen by get_format().\n",
1338
               desc->name);
1339
1340
6098
        for (i = 0; i < n; i++) {
1341
6098
            if (choices[i] == user_choice)
1342
2323
                break;
1343
        }
1344
2323
        if (i == n) {
1345
            av_log(avctx, AV_LOG_ERROR, "Invalid return from get_format(): "
1346
                   "%s not in possible list.\n", desc->name);
1347
            ret = AV_PIX_FMT_NONE;
1348
            break;
1349
        }
1350
1351
2323
        if (avctx->codec->hw_configs) {
1352
6221
            for (i = 0;; i++) {
1353
6221
                hw_config = avctx->codec->hw_configs[i];
1354
6221
                if (!hw_config)
1355
2220
                    break;
1356
4001
                if (hw_config->public.pix_fmt == user_choice)
1357
                    break;
1358
            }
1359
        } else {
1360
103
            hw_config = NULL;
1361
        }
1362
1363
2323
        if (!hw_config) {
1364
            // No config available, so no extra setup required.
1365
2323
            ret = user_choice;
1366
2323
            break;
1367
        }
1368
        config = &hw_config->public;
1369
1370
        if (config->methods &
1371
            AV_CODEC_HW_CONFIG_METHOD_HW_FRAMES_CTX &&
1372
            avctx->hw_frames_ctx) {
1373
            const AVHWFramesContext *frames_ctx =
1374
                (AVHWFramesContext*)avctx->hw_frames_ctx->data;
1375
            if (frames_ctx->format != user_choice) {
1376
                av_log(avctx, AV_LOG_ERROR, "Invalid setup for format %s: "
1377
                       "does not match the format of the provided frames "
1378
                       "context.\n", desc->name);
1379
                goto try_again;
1380
            }
1381
        } else if (config->methods &
1382
                   AV_CODEC_HW_CONFIG_METHOD_HW_DEVICE_CTX &&
1383
                   avctx->hw_device_ctx) {
1384
            const AVHWDeviceContext *device_ctx =
1385
                (AVHWDeviceContext*)avctx->hw_device_ctx->data;
1386
            if (device_ctx->type != config->device_type) {
1387
                av_log(avctx, AV_LOG_ERROR, "Invalid setup for format %s: "
1388
                       "does not match the type of the provided device "
1389
                       "context.\n", desc->name);
1390
                goto try_again;
1391
            }
1392
        } else if (config->methods &
1393
                   AV_CODEC_HW_CONFIG_METHOD_INTERNAL) {
1394
            // Internal-only setup, no additional configuration.
1395
        } else if (config->methods &
1396
                   AV_CODEC_HW_CONFIG_METHOD_AD_HOC) {
1397
            // Some ad-hoc configuration we can't see and can't check.
1398
        } else {
1399
            av_log(avctx, AV_LOG_ERROR, "Invalid setup for format %s: "
1400
                   "missing configuration.\n", desc->name);
1401
            goto try_again;
1402
        }
1403
        if (hw_config->hwaccel) {
1404
            av_log(avctx, AV_LOG_DEBUG, "Format %s requires hwaccel "
1405
                   "initialisation.\n", desc->name);
1406
            err = hwaccel_init(avctx, hw_config);
1407
            if (err < 0)
1408
                goto try_again;
1409
        }
1410
        ret = user_choice;
1411
        break;
1412
1413
    try_again:
1414
        av_log(avctx, AV_LOG_DEBUG, "Format %s not usable, retrying "
1415
               "get_format() without it.\n", desc->name);
1416
        for (i = 0; i < n; i++) {
1417
            if (choices[i] == user_choice)
1418
                break;
1419
        }
1420
        for (; i + 1 < n; i++)
1421
            choices[i] = choices[i + 1];
1422
        --n;
1423
    }
1424
1425
2323
    av_freep(&choices);
1426
2323
    return ret;
1427
}
1428
1429
16335
static void frame_pool_free(void *opaque, uint8_t *data)
1430
{
1431
16335
    FramePool *pool = (FramePool*)data;
1432
    int i;
1433
1434
81675
    for (i = 0; i < FF_ARRAY_ELEMS(pool->pools); i++)
1435
65340
        av_buffer_pool_uninit(&pool->pools[i]);
1436
1437
16335
    av_freep(&data);
1438
16335
}
1439
1440
16335
static AVBufferRef *frame_pool_alloc(void)
1441
{
1442
16335
    FramePool *pool = av_mallocz(sizeof(*pool));
1443
    AVBufferRef *buf;
1444
1445
16335
    if (!pool)
1446
        return NULL;
1447
1448
16335
    buf = av_buffer_create((uint8_t*)pool, sizeof(*pool),
1449
                           frame_pool_free, NULL, 0);
1450
16335
    if (!buf) {
1451
        av_freep(&pool);
1452
        return NULL;
1453
    }
1454
1455
16335
    return buf;
1456
}
1457
1458
394682
static int update_frame_pool(AVCodecContext *avctx, AVFrame *frame)
1459
{
1460
789364
    FramePool *pool = avctx->internal->pool ?
1461
394682
                      (FramePool*)avctx->internal->pool->data : NULL;
1462
    AVBufferRef *pool_buf;
1463
    int i, ret, ch, planes;
1464
1465
394682
    if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
1466
302246
        int planar = av_sample_fmt_is_planar(frame->format);
1467
302246
        ch     = frame->channels;
1468
302246
        planes = planar ? ch : 1;
1469
    }
1470
1471

394682
    if (pool && pool->format == frame->format) {
1472
384972
        if (avctx->codec_type == AVMEDIA_TYPE_VIDEO &&
1473

84227
            pool->width == frame->width && pool->height == frame->height)
1474
83972
            return 0;
1475

301000
        if (avctx->codec_type == AVMEDIA_TYPE_AUDIO && pool->planes == planes &&
1476

300732
            pool->channels == ch && frame->nb_samples == pool->samples)
1477
294375
            return 0;
1478
    }
1479
1480
16335
    pool_buf = frame_pool_alloc();
1481
16335
    if (!pool_buf)
1482
        return AVERROR(ENOMEM);
1483
16335
    pool = (FramePool*)pool_buf->data;
1484
1485
16335
    switch (avctx->codec_type) {
1486
8464
    case AVMEDIA_TYPE_VIDEO: {
1487
        int linesize[4];
1488
8464
        int w = frame->width;
1489
8464
        int h = frame->height;
1490
        int unaligned;
1491
        ptrdiff_t linesize1[4];
1492
        size_t size[4];
1493
1494
8464
        avcodec_align_dimensions2(avctx, &w, &h, pool->stride_align);
1495
1496
        do {
1497
            // NOTE: do not align linesizes individually, this breaks e.g. assumptions
1498
            // that linesize[0] == 2*linesize[1] in the MPEG-encoder for 4:2:2
1499
17003
            ret = av_image_fill_linesizes(linesize, avctx->pix_fmt, w);
1500
17003
            if (ret < 0)
1501
                goto fail;
1502
            // increase alignment of w for next try (rhs gives the lowest bit set in w)
1503
17003
            w += w & ~(w - 1);
1504
1505
17003
            unaligned = 0;
1506
85015
            for (i = 0; i < 4; i++)
1507
68012
                unaligned |= linesize[i] % pool->stride_align[i];
1508
17003
        } while (unaligned);
1509
1510
42320
        for (i = 0; i < 4; i++)
1511
33856
            linesize1[i] = linesize[i];
1512
8464
        ret = av_image_fill_plane_sizes(size, avctx->pix_fmt, h, linesize1);
1513
8464
        if (ret < 0)
1514
            goto fail;
1515
1516
42320
        for (i = 0; i < 4; i++) {
1517
33856
            pool->linesize[i] = linesize[i];
1518
33856
            if (size[i]) {
1519
24056
                if (size[i] > INT_MAX - (16 + STRIDE_ALIGN - 1)) {
1520
                    ret = AVERROR(EINVAL);
1521
                    goto fail;
1522
                }
1523
24056
                pool->pools[i] = av_buffer_pool_init(size[i] + 16 + STRIDE_ALIGN - 1,
1524
                                                     CONFIG_MEMORY_POISONING ?
1525
                                                        NULL :
1526
                                                        av_buffer_allocz);
1527
24056
                if (!pool->pools[i]) {
1528
                    ret = AVERROR(ENOMEM);
1529
                    goto fail;
1530
                }
1531
            }
1532
        }
1533
8464
        pool->format = frame->format;
1534
8464
        pool->width  = frame->width;
1535
8464
        pool->height = frame->height;
1536
1537
8464
        break;
1538
        }
1539
7871
    case AVMEDIA_TYPE_AUDIO: {
1540
7871
        ret = av_samples_get_buffer_size(&pool->linesize[0], ch,
1541
7871
                                         frame->nb_samples, frame->format, 0);
1542
7871
        if (ret < 0)
1543
            goto fail;
1544
1545
7871
        pool->pools[0] = av_buffer_pool_init(pool->linesize[0], NULL);
1546
7871
        if (!pool->pools[0]) {
1547
            ret = AVERROR(ENOMEM);
1548
            goto fail;
1549
        }
1550
1551
7871
        pool->format     = frame->format;
1552
7871
        pool->planes     = planes;
1553
7871
        pool->channels   = ch;
1554
7871
        pool->samples = frame->nb_samples;
1555
7871
        break;
1556
        }
1557
    default: av_assert0(0);
1558
    }
1559
1560
16335
    av_buffer_unref(&avctx->internal->pool);
1561
16335
    avctx->internal->pool = pool_buf;
1562
1563
16335
    return 0;
1564
fail:
1565
    av_buffer_unref(&pool_buf);
1566
    return ret;
1567
}
1568
1569
302246
static int audio_get_buffer(AVCodecContext *avctx, AVFrame *frame)
1570
{
1571
302246
    FramePool *pool = (FramePool*)avctx->internal->pool->data;
1572
302246
    int planes = pool->planes;
1573
    int i;
1574
1575
302246
    frame->linesize[0] = pool->linesize[0];
1576
1577
302246
    if (planes > AV_NUM_DATA_POINTERS) {
1578
        frame->extended_data = av_mallocz_array(planes, sizeof(*frame->extended_data));
1579
        frame->nb_extended_buf = planes - AV_NUM_DATA_POINTERS;
1580
        frame->extended_buf  = av_mallocz_array(frame->nb_extended_buf,
1581
                                          sizeof(*frame->extended_buf));
1582
        if (!frame->extended_data || !frame->extended_buf) {
1583
            av_freep(&frame->extended_data);
1584
            av_freep(&frame->extended_buf);
1585
            return AVERROR(ENOMEM);
1586
        }
1587
    } else {
1588
302246
        frame->extended_data = frame->data;
1589
302246
        av_assert0(frame->nb_extended_buf == 0);
1590
    }
1591
1592
762540
    for (i = 0; i < FFMIN(planes, AV_NUM_DATA_POINTERS); i++) {
1593
460294
        frame->buf[i] = av_buffer_pool_get(pool->pools[0]);
1594
460294
        if (!frame->buf[i])
1595
            goto fail;
1596
460294
        frame->extended_data[i] = frame->data[i] = frame->buf[i]->data;
1597
    }
1598
302246
    for (i = 0; i < frame->nb_extended_buf; i++) {
1599
        frame->extended_buf[i] = av_buffer_pool_get(pool->pools[0]);
1600
        if (!frame->extended_buf[i])
1601
            goto fail;
1602
        frame->extended_data[i + AV_NUM_DATA_POINTERS] = frame->extended_buf[i]->data;
1603
    }
1604
1605
302246
    if (avctx->debug & FF_DEBUG_BUFFERS)
1606
        av_log(avctx, AV_LOG_DEBUG, "default_get_buffer called on frame %p", frame);
1607
1608
302246
    return 0;
1609
fail:
1610
    av_frame_unref(frame);
1611
    return AVERROR(ENOMEM);
1612
}
1613
1614
92436
static int video_get_buffer(AVCodecContext *s, AVFrame *pic)
1615
{
1616
92436
    FramePool *pool = (FramePool*)s->internal->pool->data;
1617
92436
    const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pic->format);
1618
    int i;
1619
1620


92436
    if (pic->data[0] || pic->data[1] || pic->data[2] || pic->data[3]) {
1621
        av_log(s, AV_LOG_ERROR, "pic->data[*]!=NULL in avcodec_default_get_buffer\n");
1622
        return -1;
1623
    }
1624
1625
92436
    if (!desc) {
1626
        av_log(s, AV_LOG_ERROR,
1627
            "Unable to get pixel format descriptor for format %s\n",
1628
            av_get_pix_fmt_name(pic->format));
1629
        return AVERROR(EINVAL);
1630
    }
1631
1632
92436
    memset(pic->data, 0, sizeof(pic->data));
1633
92436
    pic->extended_data = pic->data;
1634
1635

357360
    for (i = 0; i < 4 && pool->pools[i]; i++) {
1636
264924
        pic->linesize[i] = pool->linesize[i];
1637
1638
264924
        pic->buf[i] = av_buffer_pool_get(pool->pools[i]);
1639
264924
        if (!pic->buf[i])
1640
            goto fail;
1641
1642
264924
        pic->data[i] = pic->buf[i]->data;
1643
    }
1644
567000
    for (; i < AV_NUM_DATA_POINTERS; i++) {
1645
474564
        pic->data[i] = NULL;
1646
474564
        pic->linesize[i] = 0;
1647
    }
1648
92436
    if (desc->flags & AV_PIX_FMT_FLAG_PAL ||
1649

90309
        ((desc->flags & FF_PSEUDOPAL) && pic->data[1]))
1650
2403
        avpriv_set_systematic_pal2((uint32_t *)pic->data[1], pic->format);
1651
1652
92436
    if (s->debug & FF_DEBUG_BUFFERS)
1653
        av_log(s, AV_LOG_DEBUG, "default_get_buffer called on pic %p\n", pic);
1654
1655
92436
    return 0;
1656
fail:
1657
    av_frame_unref(pic);
1658
    return AVERROR(ENOMEM);
1659
}
1660
1661
394682
int avcodec_default_get_buffer2(AVCodecContext *avctx, AVFrame *frame, int flags)
1662
{
1663
    int ret;
1664
1665
394682
    if (avctx->hw_frames_ctx) {
1666
        ret = av_hwframe_get_buffer(avctx->hw_frames_ctx, frame, 0);
1667
        frame->width  = avctx->coded_width;
1668
        frame->height = avctx->coded_height;
1669
        return ret;
1670
    }
1671
1672
394682
    if ((ret = update_frame_pool(avctx, frame)) < 0)
1673
        return ret;
1674
1675
394682
    switch (avctx->codec_type) {
1676
92436
    case AVMEDIA_TYPE_VIDEO:
1677
92436
        return video_get_buffer(avctx, frame);
1678
302246
    case AVMEDIA_TYPE_AUDIO:
1679
302246
        return audio_get_buffer(avctx, frame);
1680
    default:
1681
        return -1;
1682
    }
1683
}
1684
1685
421400
static int add_metadata_from_side_data(const AVPacket *avpkt, AVFrame *frame)
1686
{
1687
    int size;
1688
    const uint8_t *side_metadata;
1689
1690
421400
    AVDictionary **frame_md = &frame->metadata;
1691
1692
421400
    side_metadata = av_packet_get_side_data(avpkt,
1693
                                            AV_PKT_DATA_STRINGS_METADATA, &size);
1694
421400
    return av_packet_unpack_dictionary(side_metadata, size, frame_md);
1695
}
1696
1697
421400
int ff_decode_frame_props(AVCodecContext *avctx, AVFrame *frame)
1698
{
1699
421400
    AVPacket *pkt = avctx->internal->last_pkt_props;
1700
    int i;
1701
    static const struct {
1702
        enum AVPacketSideDataType packet;
1703
        enum AVFrameSideDataType frame;
1704
    } sd[] = {
1705
        { AV_PKT_DATA_REPLAYGAIN ,                AV_FRAME_DATA_REPLAYGAIN },
1706
        { AV_PKT_DATA_DISPLAYMATRIX,              AV_FRAME_DATA_DISPLAYMATRIX },
1707
        { AV_PKT_DATA_SPHERICAL,                  AV_FRAME_DATA_SPHERICAL },
1708
        { AV_PKT_DATA_STEREO3D,                   AV_FRAME_DATA_STEREO3D },
1709
        { AV_PKT_DATA_AUDIO_SERVICE_TYPE,         AV_FRAME_DATA_AUDIO_SERVICE_TYPE },
1710
        { AV_PKT_DATA_MASTERING_DISPLAY_METADATA, AV_FRAME_DATA_MASTERING_DISPLAY_METADATA },
1711
        { AV_PKT_DATA_CONTENT_LIGHT_LEVEL,        AV_FRAME_DATA_CONTENT_LIGHT_LEVEL },
1712
        { AV_PKT_DATA_A53_CC,                     AV_FRAME_DATA_A53_CC },
1713
        { AV_PKT_DATA_ICC_PROFILE,                AV_FRAME_DATA_ICC_PROFILE },
1714
        { AV_PKT_DATA_S12M_TIMECODE,              AV_FRAME_DATA_S12M_TIMECODE },
1715
    };
1716
1717
421400
    if (IS_EMPTY(pkt))
1718
9013
        avpriv_packet_list_get(&avctx->internal->pkt_props,
1719
9013
                               &avctx->internal->pkt_props_tail,
1720
                               pkt);
1721
1722
421400
    if (pkt) {
1723
421400
        frame->pts = pkt->pts;
1724
#if FF_API_PKT_PTS
1725
FF_DISABLE_DEPRECATION_WARNINGS
1726
421400
        frame->pkt_pts = pkt->pts;
1727
FF_ENABLE_DEPRECATION_WARNINGS
1728
#endif
1729
421400
        frame->pkt_pos      = pkt->pos;
1730
421400
        frame->pkt_duration = pkt->duration;
1731
421400
        frame->pkt_size     = pkt->size;
1732
1733
4635400
        for (i = 0; i < FF_ARRAY_ELEMS(sd); i++) {
1734
            int size;
1735
4214000
            uint8_t *packet_sd = av_packet_get_side_data(pkt, sd[i].packet, &size);
1736
4214000
            if (packet_sd) {
1737
209
                AVFrameSideData *frame_sd = av_frame_new_side_data(frame,
1738
                                                                   sd[i].frame,
1739
                                                                   size);
1740
209
                if (!frame_sd)
1741
                    return AVERROR(ENOMEM);
1742
1743
209
                memcpy(frame_sd->data, packet_sd, size);
1744
            }
1745
        }
1746
421400
        add_metadata_from_side_data(pkt, frame);
1747
1748
421400
        if (pkt->flags & AV_PKT_FLAG_DISCARD) {
1749
196
            frame->flags |= AV_FRAME_FLAG_DISCARD;
1750
        } else {
1751
421204
            frame->flags = (frame->flags & ~AV_FRAME_FLAG_DISCARD);
1752
        }
1753
    }
1754
421400
    frame->reordered_opaque = avctx->reordered_opaque;
1755
1756
421400
    if (frame->color_primaries == AVCOL_PRI_UNSPECIFIED)
1757
421400
        frame->color_primaries = avctx->color_primaries;
1758
421400
    if (frame->color_trc == AVCOL_TRC_UNSPECIFIED)
1759
421400
        frame->color_trc = avctx->color_trc;
1760
421400
    if (frame->colorspace == AVCOL_SPC_UNSPECIFIED)
1761
420965
        frame->colorspace = avctx->colorspace;
1762
421400
    if (frame->color_range == AVCOL_RANGE_UNSPECIFIED)
1763
421182
        frame->color_range = avctx->color_range;
1764
421400
    if (frame->chroma_location == AVCHROMA_LOC_UNSPECIFIED)
1765
421400
        frame->chroma_location = avctx->chroma_sample_location;
1766
1767
421400
    switch (avctx->codec->type) {
1768
119154
    case AVMEDIA_TYPE_VIDEO:
1769
119154
        frame->format              = avctx->pix_fmt;
1770
119154
        if (!frame->sample_aspect_ratio.num)
1771
119035
            frame->sample_aspect_ratio = avctx->sample_aspect_ratio;
1772
1773

216921
        if (frame->width && frame->height &&
1774
97767
            av_image_check_sar(frame->width, frame->height,
1775
                               frame->sample_aspect_ratio) < 0) {
1776
            av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %u/%u\n",
1777
                   frame->sample_aspect_ratio.num,
1778
                   frame->sample_aspect_ratio.den);
1779
            frame->sample_aspect_ratio = (AVRational){ 0, 1 };
1780
        }
1781
1782
119154
        break;
1783
302246
    case AVMEDIA_TYPE_AUDIO:
1784
302246
        if (!frame->sample_rate)
1785
302246
            frame->sample_rate    = avctx->sample_rate;
1786
302246
        if (frame->format < 0)
1787
302246
            frame->format         = avctx->sample_fmt;
1788
302246
        if (!frame->channel_layout) {
1789
302246
            if (avctx->channel_layout) {
1790
300930
                 if (av_get_channel_layout_nb_channels(avctx->channel_layout) !=
1791
300930
                     avctx->channels) {
1792
                     av_log(avctx, AV_LOG_ERROR, "Inconsistent channel "
1793
                            "configuration.\n");
1794
                     return AVERROR(EINVAL);
1795
                 }
1796
1797
300930
                frame->channel_layout = avctx->channel_layout;
1798
            } else {
1799
1316
                if (avctx->channels > FF_SANE_NB_CHANNELS) {
1800
                    av_log(avctx, AV_LOG_ERROR, "Too many channels: %d.\n",
1801
                           avctx->channels);
1802
                    return AVERROR(ENOSYS);
1803
                }
1804
            }
1805
        }
1806
302246
        frame->channels = avctx->channels;
1807
302246
        break;
1808
    }
1809
421400
    return 0;
1810
}
1811
1812
394603
static void validate_avframe_allocation(AVCodecContext *avctx, AVFrame *frame)
1813
{
1814
394603
    if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
1815
        int i;
1816
92357
        int num_planes = av_pix_fmt_count_planes(frame->format);
1817
92357
        const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format);
1818
92357
        int flags = desc ? desc->flags : 0;
1819

92357
        if (num_planes == 1 && (flags & AV_PIX_FMT_FLAG_PAL))
1820
2127
            num_planes = 2;
1821

92357
        if ((flags & FF_PSEUDOPAL) && frame->data[1])
1822
276
            num_planes = 2;
1823
357044
        for (i = 0; i < num_planes; i++) {
1824
264687
            av_assert0(frame->data[i]);
1825
        }
1826
        // For formats without data like hwaccel allow unused pointers to be non-NULL.
1827

566526
        for (i = num_planes; num_planes > 0 && i < FF_ARRAY_ELEMS(frame->data); i++) {
1828
474169
            if (frame->data[i])
1829
                av_log(avctx, AV_LOG_ERROR, "Buffer returned by get_buffer2() did not zero unused plane pointers\n");
1830
474169
            frame->data[i] = NULL;
1831
        }
1832
    }
1833
394603
}
1834
1835
394603
static void decode_data_free(void *opaque, uint8_t *data)
1836
{
1837
394603
    FrameDecodeData *fdd = (FrameDecodeData*)data;
1838
1839
394603
    if (fdd->post_process_opaque_free)
1840
        fdd->post_process_opaque_free(fdd->post_process_opaque);
1841
1842
394603
    if (fdd->hwaccel_priv_free)
1843
        fdd->hwaccel_priv_free(fdd->hwaccel_priv);
1844
1845
394603
    av_freep(&fdd);
1846
394603
}
1847
1848
394603
int ff_attach_decode_data(AVFrame *frame)
1849
{
1850
    AVBufferRef *fdd_buf;
1851
    FrameDecodeData *fdd;
1852
1853
    av_assert1(!frame->private_ref);
1854
394603
    av_buffer_unref(&frame->private_ref);
1855
1856
394603
    fdd = av_mallocz(sizeof(*fdd));
1857
394603
    if (!fdd)
1858
        return AVERROR(ENOMEM);
1859
1860
394603
    fdd_buf = av_buffer_create((uint8_t*)fdd, sizeof(*fdd), decode_data_free,
1861
                               NULL, AV_BUFFER_FLAG_READONLY);
1862
394603
    if (!fdd_buf) {
1863
        av_freep(&fdd);
1864
        return AVERROR(ENOMEM);
1865
    }
1866
1867
394603
    frame->private_ref = fdd_buf;
1868
1869
394603
    return 0;
1870
}
1871
1872
394861
int ff_get_buffer(AVCodecContext *avctx, AVFrame *frame, int flags)
1873
{
1874
394861
    const AVHWAccel *hwaccel = avctx->hwaccel;
1875
394861
    int override_dimensions = 1;
1876
    int ret;
1877
1878
394861
    if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
1879

92615
        if ((ret = av_image_check_size2(FFALIGN(avctx->width, STRIDE_ALIGN), avctx->height, avctx->max_pixels, AV_PIX_FMT_NONE, 0, avctx)) < 0 || avctx->pix_fmt<0) {
1880
258
            av_log(avctx, AV_LOG_ERROR, "video_get_buffer: image parameters invalid\n");
1881
258
            ret = AVERROR(EINVAL);
1882
258
            goto fail;
1883
        }
1884
1885

92357
        if (frame->width <= 0 || frame->height <= 0) {
1886
82749
            frame->width  = FFMAX(avctx->width,  AV_CEIL_RSHIFT(avctx->coded_width,  avctx->lowres));
1887
82749
            frame->height = FFMAX(avctx->height, AV_CEIL_RSHIFT(avctx->coded_height, avctx->lowres));
1888
82749
            override_dimensions = 0;
1889
        }
1890
1891


92357
        if (frame->data[0] || frame->data[1] || frame->data[2] || frame->data[3]) {
1892
            av_log(avctx, AV_LOG_ERROR, "pic->data[*]!=NULL in get_buffer_internal\n");
1893
            ret = AVERROR(EINVAL);
1894
            goto fail;
1895
        }
1896
302246
    } else if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
1897
302246
        if (frame->nb_samples * (int64_t)avctx->channels > avctx->max_samples) {
1898
            av_log(avctx, AV_LOG_ERROR, "samples per frame %d, exceeds max_samples %"PRId64"\n", frame->nb_samples, avctx->max_samples);
1899
            ret = AVERROR(EINVAL);
1900
            goto fail;
1901
        }
1902
    }
1903
394603
    ret = ff_decode_frame_props(avctx, frame);
1904
394603
    if (ret < 0)
1905
        goto fail;
1906
1907
394603
    if (hwaccel) {
1908
        if (hwaccel->alloc_frame) {
1909
            ret = hwaccel->alloc_frame(avctx, frame);
1910
            goto end;
1911
        }
1912
    } else
1913
394603
        avctx->sw_pix_fmt = avctx->pix_fmt;
1914
1915
394603
    ret = avctx->get_buffer2(avctx, frame, flags);
1916
394603
    if (ret < 0)
1917
        goto fail;
1918
1919
394603
    validate_avframe_allocation(avctx, frame);
1920
1921
394603
    ret = ff_attach_decode_data(frame);
1922
394603
    if (ret < 0)
1923
        goto fail;
1924
1925
394603
end:
1926

394603
    if (avctx->codec_type == AVMEDIA_TYPE_VIDEO && !override_dimensions &&
1927
82749
        !(avctx->codec->caps_internal & FF_CODEC_CAP_EXPORTS_CROPPING)) {
1928
49855
        frame->width  = avctx->width;
1929
49855
        frame->height = avctx->height;
1930
    }
1931
1932
344748
fail:
1933
394861
    if (ret < 0) {
1934
258
        av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
1935
258
        av_frame_unref(frame);
1936
    }
1937
1938
394861
    return ret;
1939
}
1940
1941
6957
static int reget_buffer_internal(AVCodecContext *avctx, AVFrame *frame, int flags)
1942
{
1943
    AVFrame *tmp;
1944
    int ret;
1945
1946
6957
    av_assert0(avctx->codec_type == AVMEDIA_TYPE_VIDEO);
1947
1948


6957
    if (frame->data[0] && (frame->width != avctx->width || frame->height != avctx->height || frame->format != avctx->pix_fmt)) {
1949
        av_log(avctx, AV_LOG_WARNING, "Picture changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s in reget buffer()\n",
1950
               frame->width, frame->height, av_get_pix_fmt_name(frame->format), avctx->width, avctx->height, av_get_pix_fmt_name(avctx->pix_fmt));
1951
        av_frame_unref(frame);
1952
    }
1953
1954
6957
    if (!frame->data[0])
1955
120
        return ff_get_buffer(avctx, frame, AV_GET_BUFFER_FLAG_REF);
1956
1957

6837
    if ((flags & FF_REGET_BUFFER_FLAG_READONLY) || av_frame_is_writable(frame))
1958
5301
        return ff_decode_frame_props(avctx, frame);
1959
1960
1536
    tmp = av_frame_alloc();
1961
1536
    if (!tmp)
1962
        return AVERROR(ENOMEM);
1963
1964
1536
    av_frame_move_ref(tmp, frame);
1965
1966
1536
    ret = ff_get_buffer(avctx, frame, AV_GET_BUFFER_FLAG_REF);
1967
1536
    if (ret < 0) {
1968
        av_frame_free(&tmp);
1969
        return ret;
1970
    }
1971
1972
1536
    av_frame_copy(frame, tmp);
1973
1536
    av_frame_free(&tmp);
1974
1975
1536
    return 0;
1976
}
1977
1978
6957
int ff_reget_buffer(AVCodecContext *avctx, AVFrame *frame, int flags)
1979
{
1980
6957
    int ret = reget_buffer_internal(avctx, frame, flags);
1981
6957
    if (ret < 0)
1982
        av_log(avctx, AV_LOG_ERROR, "reget_buffer() failed\n");
1983
6957
    return ret;
1984
}