GCC Code Coverage Report
Directory: ../../../ffmpeg/ Exec Total Coverage
File: src/libavcodec/decode.c Lines: 670 1103 60.7 %
Date: 2020-07-11 02:49:52 Branches: 490 871 56.3 %

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 "thread.h"
47
48
typedef struct FramePool {
49
    /**
50
     * Pools for each data plane. For audio all the planes have the same size,
51
     * so only pools[0] is used.
52
     */
53
    AVBufferPool *pools[4];
54
55
    /*
56
     * Pool parameters
57
     */
58
    int format;
59
    int width, height;
60
    int stride_align[AV_NUM_DATA_POINTERS];
61
    int linesize[4];
62
    int planes;
63
    int channels;
64
    int samples;
65
} FramePool;
66
67
410126
static int apply_param_change(AVCodecContext *avctx, const AVPacket *avpkt)
68
{
69
    int size, ret;
70
    const uint8_t *data;
71
    uint32_t flags;
72
    int64_t val;
73
74
410126
    data = av_packet_get_side_data(avpkt, AV_PKT_DATA_PARAM_CHANGE, &size);
75
410126
    if (!data)
76
410124
        return 0;
77
78
2
    if (!(avctx->codec->capabilities & AV_CODEC_CAP_PARAM_CHANGE)) {
79
        av_log(avctx, AV_LOG_ERROR, "This decoder does not support parameter "
80
               "changes, but PARAM_CHANGE side data was sent to it.\n");
81
        ret = AVERROR(EINVAL);
82
        goto fail2;
83
    }
84
85
2
    if (size < 4)
86
        goto fail;
87
88
2
    flags = bytestream_get_le32(&data);
89
2
    size -= 4;
90
91
2
    if (flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_COUNT) {
92
        if (size < 4)
93
            goto fail;
94
        val = bytestream_get_le32(&data);
95
        if (val <= 0 || val > INT_MAX) {
96
            av_log(avctx, AV_LOG_ERROR, "Invalid channel count");
97
            ret = AVERROR_INVALIDDATA;
98
            goto fail2;
99
        }
100
        avctx->channels = val;
101
        size -= 4;
102
    }
103
2
    if (flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_LAYOUT) {
104
        if (size < 8)
105
            goto fail;
106
        avctx->channel_layout = bytestream_get_le64(&data);
107
        size -= 8;
108
    }
109
2
    if (flags & AV_SIDE_DATA_PARAM_CHANGE_SAMPLE_RATE) {
110
        if (size < 4)
111
            goto fail;
112
        val = bytestream_get_le32(&data);
113
        if (val <= 0 || val > INT_MAX) {
114
            av_log(avctx, AV_LOG_ERROR, "Invalid sample rate");
115
            ret = AVERROR_INVALIDDATA;
116
            goto fail2;
117
        }
118
        avctx->sample_rate = val;
119
        size -= 4;
120
    }
121
2
    if (flags & AV_SIDE_DATA_PARAM_CHANGE_DIMENSIONS) {
122
2
        if (size < 8)
123
            goto fail;
124
2
        avctx->width  = bytestream_get_le32(&data);
125
2
        avctx->height = bytestream_get_le32(&data);
126
2
        size -= 8;
127
2
        ret = ff_set_dimensions(avctx, avctx->width, avctx->height);
128
2
        if (ret < 0)
129
            goto fail2;
130
    }
131
132
2
    return 0;
133
fail:
134
    av_log(avctx, AV_LOG_ERROR, "PARAM_CHANGE side data too small.\n");
135
    ret = AVERROR_INVALIDDATA;
136
fail2:
137
    if (ret < 0) {
138
        av_log(avctx, AV_LOG_ERROR, "Error applying parameter changes.\n");
139
        if (avctx->err_recognition & AV_EF_EXPLODE)
140
            return ret;
141
    }
142
    return 0;
143
}
144
145
411323
static int extract_packet_props(AVCodecInternal *avci, const AVPacket *pkt)
146
{
147
411323
    int ret = 0;
148
149
411323
    av_packet_unref(avci->last_pkt_props);
150
411323
    if (pkt) {
151
411323
        ret = av_packet_copy_props(avci->last_pkt_props, pkt);
152
411323
        if (!ret)
153
411323
            avci->last_pkt_props->size = pkt->size; // HACK: Needed for ff_decode_frame_props().
154
    }
155
411323
    return ret;
156
}
157
158
3522
static int unrefcount_frame(AVCodecInternal *avci, AVFrame *frame)
159
{
160
    int ret;
161
162
    /* move the original frame to our backup */
163
3522
    av_frame_unref(avci->to_free);
164
3522
    av_frame_move_ref(avci->to_free, frame);
165
166
    /* now copy everything except the AVBufferRefs back
167
     * note that we make a COPY of the side data, so calling av_frame_free() on
168
     * the caller's frame will work properly */
169
3522
    ret = av_frame_copy_props(frame, avci->to_free);
170
3522
    if (ret < 0)
171
        return ret;
172
173
3522
    memcpy(frame->data,     avci->to_free->data,     sizeof(frame->data));
174
3522
    memcpy(frame->linesize, avci->to_free->linesize, sizeof(frame->linesize));
175
3522
    if (avci->to_free->extended_data != avci->to_free->data) {
176
        int planes = avci->to_free->channels;
177
        int size   = planes * sizeof(*frame->extended_data);
178
179
        if (!size) {
180
            av_frame_unref(frame);
181
            return AVERROR_BUG;
182
        }
183
184
        frame->extended_data = av_malloc(size);
185
        if (!frame->extended_data) {
186
            av_frame_unref(frame);
187
            return AVERROR(ENOMEM);
188
        }
189
        memcpy(frame->extended_data, avci->to_free->extended_data,
190
               size);
191
    } else
192
3522
        frame->extended_data = frame->data;
193
194
3522
    frame->format         = avci->to_free->format;
195
3522
    frame->width          = avci->to_free->width;
196
3522
    frame->height         = avci->to_free->height;
197
3522
    frame->channel_layout = avci->to_free->channel_layout;
198
3522
    frame->nb_samples     = avci->to_free->nb_samples;
199
3522
    frame->channels       = avci->to_free->channels;
200
201
3522
    return 0;
202
}
203
204
12592
int ff_decode_bsfs_init(AVCodecContext *avctx)
205
{
206
12592
    AVCodecInternal *avci = avctx->internal;
207
    int ret;
208
209
12592
    if (avci->bsf)
210
        return 0;
211
212
12592
    ret = av_bsf_list_parse_str(avctx->codec->bsfs, &avci->bsf);
213
12592
    if (ret < 0) {
214
        av_log(avctx, AV_LOG_ERROR, "Error parsing decoder bitstream filters '%s': %s\n", avctx->codec->bsfs, av_err2str(ret));
215
        if (ret != AVERROR(ENOMEM))
216
            ret = AVERROR_BUG;
217
        goto fail;
218
    }
219
220
    /* We do not currently have an API for passing the input timebase into decoders,
221
     * but no filters used here should actually need it.
222
     * So we make up some plausible-looking number (the MPEG 90kHz timebase) */
223
12592
    avci->bsf->time_base_in = (AVRational){ 1, 90000 };
224
12592
    ret = avcodec_parameters_from_context(avci->bsf->par_in, avctx);
225
12592
    if (ret < 0)
226
        goto fail;
227
228
12592
    ret = av_bsf_init(avci->bsf);
229
12592
    if (ret < 0)
230
        goto fail;
231
232
12592
    return 0;
233
fail:
234
    av_bsf_free(&avci->bsf);
235
    return ret;
236
}
237
238
826240
int ff_decode_get_packet(AVCodecContext *avctx, AVPacket *pkt)
239
{
240
826240
    AVCodecInternal *avci = avctx->internal;
241
    int ret;
242
243
826240
    if (avci->draining)
244
2
        return AVERROR_EOF;
245
246
826238
    ret = av_bsf_receive_packet(avci->bsf, pkt);
247
826238
    if (ret == AVERROR_EOF)
248
5829
        avci->draining = 1;
249
826238
    if (ret < 0)
250
416112
        return ret;
251
252
410126
    ret = extract_packet_props(avctx->internal, pkt);
253
410126
    if (ret < 0)
254
        goto finish;
255
256
410126
    ret = apply_param_change(avctx, pkt);
257
410126
    if (ret < 0)
258
        goto finish;
259
260
410126
    if (avctx->codec->receive_frame)
261
92
        avci->compat_decode_consumed += pkt->size;
262
263
410126
    return 0;
264
finish:
265
    av_packet_unref(pkt);
266
    return ret;
267
}
268
269
/**
270
 * Attempt to guess proper monotonic timestamps for decoded video frames
271
 * which might have incorrect times. Input timestamps may wrap around, in
272
 * which case the output will as well.
273
 *
274
 * @param pts the pts field of the decoded AVPacket, as passed through
275
 * AVFrame.pts
276
 * @param dts the dts field of the decoded AVPacket
277
 * @return one of the input values, may be AV_NOPTS_VALUE
278
 */
279
430898
static int64_t guess_correct_pts(AVCodecContext *ctx,
280
                                 int64_t reordered_pts, int64_t dts)
281
{
282
430898
    int64_t pts = AV_NOPTS_VALUE;
283
284
430898
    if (dts != AV_NOPTS_VALUE) {
285
396527
        ctx->pts_correction_num_faulty_dts += dts <= ctx->pts_correction_last_dts;
286
396527
        ctx->pts_correction_last_dts = dts;
287
34371
    } else if (reordered_pts != AV_NOPTS_VALUE)
288
189
        ctx->pts_correction_last_dts = reordered_pts;
289
290
430898
    if (reordered_pts != AV_NOPTS_VALUE) {
291
367821
        ctx->pts_correction_num_faulty_pts += reordered_pts <= ctx->pts_correction_last_pts;
292
367821
        ctx->pts_correction_last_pts = reordered_pts;
293
63077
    } else if(dts != AV_NOPTS_VALUE)
294
28895
        ctx->pts_correction_last_pts = dts;
295
296

430898
    if ((ctx->pts_correction_num_faulty_pts<=ctx->pts_correction_num_faulty_dts || dts == AV_NOPTS_VALUE)
297
430083
       && reordered_pts != AV_NOPTS_VALUE)
298
367007
        pts = reordered_pts;
299
    else
300
63891
        pts = dts;
301
302
430898
    return pts;
303
}
304
305
/*
306
 * The core of the receive_frame_wrapper for the decoders implementing
307
 * the simple API. Certain decoders might consume partial packets without
308
 * returning any output, so this function needs to be called in a loop until it
309
 * returns EAGAIN.
310
 **/
311
861132
static inline int decode_simple_internal(AVCodecContext *avctx, AVFrame *frame)
312
{
313
861132
    AVCodecInternal   *avci = avctx->internal;
314
861132
    DecodeSimpleContext *ds = &avci->ds;
315
861132
    AVPacket           *pkt = ds->in_pkt;
316
    // copy to ensure we do not change pkt
317
    int got_frame, actual_got_frame;
318
    int ret;
319
320

861132
    if (!pkt->data && !avci->draining) {
321
826052
        av_packet_unref(pkt);
322
826052
        ret = ff_decode_get_packet(avctx, pkt);
323

826052
        if (ret < 0 && ret != AVERROR_EOF)
324
410191
            return ret;
325
    }
326
327
    // Some codecs (at least wma lossless) will crash when feeding drain packets
328
    // after EOF was signaled.
329
450941
    if (avci->draining_done)
330
6123
        return AVERROR_EOF;
331
332
444818
    if (!pkt->data &&
333
6549
        !(avctx->codec->capabilities & AV_CODEC_CAP_DELAY ||
334
5201
          avctx->active_thread_type & FF_THREAD_FRAME))
335
5152
        return AVERROR_EOF;
336
337
439666
    got_frame = 0;
338
339
439666
    if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME) {
340
582
        ret = ff_thread_decode_frame(avctx, frame, &got_frame, pkt);
341
    } else {
342
439084
        ret = avctx->codec->decode(avctx, frame, &got_frame, pkt);
343
344
439084
        if (!(avctx->codec->caps_internal & FF_CODEC_CAP_SETS_PKT_DTS))
345
439084
            frame->pkt_dts = pkt->dts;
346
439084
        if (avctx->codec->type == AVMEDIA_TYPE_VIDEO) {
347
115696
            if(!avctx->has_b_frames)
348
83703
                frame->pkt_pos = pkt->pos;
349
            //FIXME these should be under if(!avctx->has_b_frames)
350
            /* get_buffer is supposed to set frame parameters */
351
115696
            if (!(avctx->codec->capabilities & AV_CODEC_CAP_DR1)) {
352
21609
                if (!frame->sample_aspect_ratio.num)  frame->sample_aspect_ratio = avctx->sample_aspect_ratio;
353
21609
                if (!frame->width)                    frame->width               = avctx->width;
354
21609
                if (!frame->height)                   frame->height              = avctx->height;
355
21609
                if (frame->format == AV_PIX_FMT_NONE) frame->format              = avctx->pix_fmt;
356
            }
357
        }
358
    }
359
439666
    emms_c();
360
439666
    actual_got_frame = got_frame;
361
362
439666
    if (avctx->codec->type == AVMEDIA_TYPE_VIDEO) {
363
115806
        if (frame->flags & AV_FRAME_FLAG_DISCARD)
364
179
            got_frame = 0;
365
115806
        if (got_frame)
366
108441
            frame->best_effort_timestamp = guess_correct_pts(avctx,
367
                                                             frame->pts,
368
                                                             frame->pkt_dts);
369
323860
    } else if (avctx->codec->type == AVMEDIA_TYPE_AUDIO) {
370
        uint8_t *side;
371
        int side_size;
372
323860
        uint32_t discard_padding = 0;
373
323860
        uint8_t skip_reason = 0;
374
323860
        uint8_t discard_reason = 0;
375
376

323860
        if (ret >= 0 && got_frame) {
377
322457
            frame->best_effort_timestamp = guess_correct_pts(avctx,
378
                                                             frame->pts,
379
                                                             frame->pkt_dts);
380
322457
            if (frame->format == AV_SAMPLE_FMT_NONE)
381
                frame->format = avctx->sample_fmt;
382
322457
            if (!frame->channel_layout)
383
1316
                frame->channel_layout = avctx->channel_layout;
384
322457
            if (!frame->channels)
385
                frame->channels = avctx->channels;
386
322457
            if (!frame->sample_rate)
387
2
                frame->sample_rate = avctx->sample_rate;
388
        }
389
390
323860
        side= av_packet_get_side_data(avci->last_pkt_props, AV_PKT_DATA_SKIP_SAMPLES, &side_size);
391

323860
        if(side && side_size>=10) {
392
92
            avci->skip_samples = AV_RL32(side) * avci->skip_samples_multiplier;
393
92
            discard_padding = AV_RL32(side + 4);
394
92
            av_log(avctx, AV_LOG_DEBUG, "skip %d / discard %d samples due to side data\n",
395
                   avci->skip_samples, (int)discard_padding);
396
92
            skip_reason = AV_RL8(side + 8);
397
92
            discard_reason = AV_RL8(side + 9);
398
        }
399
400

323860
        if ((frame->flags & AV_FRAME_FLAG_DISCARD) && got_frame &&
401
15
            !(avctx->flags2 & AV_CODEC_FLAG2_SKIP_MANUAL)) {
402
15
            avci->skip_samples = FFMAX(0, avci->skip_samples - frame->nb_samples);
403
15
            got_frame = 0;
404
        }
405
406

323860
        if (avci->skip_samples > 0 && got_frame &&
407
143
            !(avctx->flags2 & AV_CODEC_FLAG2_SKIP_MANUAL)) {
408
143
            if(frame->nb_samples <= avci->skip_samples){
409
101
                got_frame = 0;
410
101
                avci->skip_samples -= frame->nb_samples;
411
101
                av_log(avctx, AV_LOG_DEBUG, "skip whole frame, skip left: %d\n",
412
                       avci->skip_samples);
413
            } else {
414
42
                av_samples_copy(frame->extended_data, frame->extended_data, 0, avci->skip_samples,
415
42
                                frame->nb_samples - avci->skip_samples, avctx->channels, frame->format);
416

84
                if(avctx->pkt_timebase.num && avctx->sample_rate) {
417
42
                    int64_t diff_ts = av_rescale_q(avci->skip_samples,
418
42
                                                   (AVRational){1, avctx->sample_rate},
419
                                                   avctx->pkt_timebase);
420
42
                    if(frame->pts!=AV_NOPTS_VALUE)
421
42
                        frame->pts += diff_ts;
422
#if FF_API_PKT_PTS
423
FF_DISABLE_DEPRECATION_WARNINGS
424
42
                    if(frame->pkt_pts!=AV_NOPTS_VALUE)
425
42
                        frame->pkt_pts += diff_ts;
426
FF_ENABLE_DEPRECATION_WARNINGS
427
#endif
428
42
                    if(frame->pkt_dts!=AV_NOPTS_VALUE)
429
42
                        frame->pkt_dts += diff_ts;
430
42
                    if (frame->pkt_duration >= diff_ts)
431
42
                        frame->pkt_duration -= diff_ts;
432
                } else {
433
                    av_log(avctx, AV_LOG_WARNING, "Could not update timestamps for skipped samples.\n");
434
                }
435
42
                av_log(avctx, AV_LOG_DEBUG, "skip %d/%d samples\n",
436
                       avci->skip_samples, frame->nb_samples);
437
42
                frame->nb_samples -= avci->skip_samples;
438
42
                avci->skip_samples = 0;
439
            }
440
        }
441
442

323860
        if (discard_padding > 0 && discard_padding <= frame->nb_samples && got_frame &&
443
5
            !(avctx->flags2 & AV_CODEC_FLAG2_SKIP_MANUAL)) {
444
5
            if (discard_padding == frame->nb_samples) {
445
2
                got_frame = 0;
446
            } else {
447

3
                if(avctx->pkt_timebase.num && avctx->sample_rate) {
448
3
                    int64_t diff_ts = av_rescale_q(frame->nb_samples - discard_padding,
449
3
                                                   (AVRational){1, avctx->sample_rate},
450
                                                   avctx->pkt_timebase);
451
3
                    frame->pkt_duration = diff_ts;
452
                } else {
453
                    av_log(avctx, AV_LOG_WARNING, "Could not update timestamps for discarded samples.\n");
454
                }
455
3
                av_log(avctx, AV_LOG_DEBUG, "discard %d/%d samples\n",
456
                       (int)discard_padding, frame->nb_samples);
457
3
                frame->nb_samples -= discard_padding;
458
            }
459
        }
460
461

323860
        if ((avctx->flags2 & AV_CODEC_FLAG2_SKIP_MANUAL) && got_frame) {
462
            AVFrameSideData *fside = av_frame_new_side_data(frame, AV_FRAME_DATA_SKIP_SAMPLES, 10);
463
            if (fside) {
464
                AV_WL32(fside->data, avci->skip_samples);
465
                AV_WL32(fside->data + 4, discard_padding);
466
                AV_WL8(fside->data + 8, skip_reason);
467
                AV_WL8(fside->data + 9, discard_reason);
468
                avci->skip_samples = 0;
469
            }
470
        }
471
    }
472
473
439666
    if (avctx->codec->type == AVMEDIA_TYPE_AUDIO &&
474

323860
        !avci->showed_multi_packet_warning &&
475

298982
        ret >= 0 && ret != pkt->size && !(avctx->codec->capabilities & AV_CODEC_CAP_SUBFRAMES)) {
476
11
        av_log(avctx, AV_LOG_WARNING, "Multiple frames in a packet.\n");
477
11
        avci->showed_multi_packet_warning = 1;
478
    }
479
480
439666
    if (!got_frame)
481
8886
        av_frame_unref(frame);
482
483

439666
    if (ret >= 0 && avctx->codec->type == AVMEDIA_TYPE_VIDEO && !(avctx->flags & AV_CODEC_FLAG_TRUNCATED))
484
115113
        ret = pkt->size;
485
486
#if FF_API_AVCTX_TIMEBASE
487

439666
    if (avctx->framerate.num > 0 && avctx->framerate.den > 0)
488
84831
        avctx->time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1}));
489
#endif
490
491
    /* do not stop draining when actual_got_frame != 0 or ret < 0 */
492
    /* got_frame == 0 but actual_got_frame != 0 when frame is discarded */
493

439666
    if (avci->draining && !actual_got_frame) {
494
661
        if (ret < 0) {
495
            /* prevent infinite loop if a decoder wrongly always return error on draining */
496
            /* reasonable nb_errors_max = maximum b frames + thread count */
497
1
            int nb_errors_max = 20 + (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME ?
498
                                avctx->thread_count : 1);
499
500
1
            if (avci->nb_draining_errors++ >= nb_errors_max) {
501
                av_log(avctx, AV_LOG_ERROR, "Too many errors when draining, this is a bug. "
502
                       "Stop draining and force EOF.\n");
503
                avci->draining_done = 1;
504
                ret = AVERROR_BUG;
505
            }
506
        } else {
507
660
            avci->draining_done = 1;
508
        }
509
    }
510
511
439666
    avci->compat_decode_consumed += ret;
512
513

439666
    if (ret >= pkt->size || ret < 0) {
514
411431
        av_packet_unref(pkt);
515
    } else {
516
28235
        int consumed = ret;
517
518
28235
        pkt->data                += consumed;
519
28235
        pkt->size                -= consumed;
520
28235
        avci->last_pkt_props->size -= consumed; // See extract_packet_props() comment.
521
28235
        pkt->pts                  = AV_NOPTS_VALUE;
522
28235
        pkt->dts                  = AV_NOPTS_VALUE;
523
28235
        avci->last_pkt_props->pts = AV_NOPTS_VALUE;
524
28235
        avci->last_pkt_props->dts = AV_NOPTS_VALUE;
525
    }
526
527
439666
    if (got_frame)
528
430780
        av_assert0(frame->buf[0]);
529
530
439666
    return ret < 0 ? ret : 0;
531
}
532
533
852903
static int decode_simple_receive_frame(AVCodecContext *avctx, AVFrame *frame)
534
{
535
    int ret;
536
537
1291912
    while (!frame->buf[0]) {
538
861132
        ret = decode_simple_internal(avctx, frame);
539
861132
        if (ret < 0)
540
422123
            return ret;
541
    }
542
543
430780
    return 0;
544
}
545
546
853171
static int decode_receive_frame_internal(AVCodecContext *avctx, AVFrame *frame)
547
{
548
853171
    AVCodecInternal *avci = avctx->internal;
549
    int ret;
550
551
853171
    av_assert0(!frame->buf[0]);
552
553
853171
    if (avctx->codec->receive_frame)
554
268
        ret = avctx->codec->receive_frame(avctx, frame);
555
    else
556
852903
        ret = decode_simple_receive_frame(avctx, frame);
557
558
853171
    if (ret == AVERROR_EOF)
559
11279
        avci->draining_done = 1;
560
561
853171
    if (!ret) {
562
        /* the only case where decode data is not set should be decoders
563
         * that do not call ff_get_buffer() */
564

430952
        av_assert0((frame->private_ref && frame->private_ref->size == sizeof(FrameDecodeData)) ||
565
                   !(avctx->codec->capabilities & AV_CODEC_CAP_DR1));
566
567
430952
        if (frame->private_ref) {
568
409552
            FrameDecodeData *fdd = (FrameDecodeData*)frame->private_ref->data;
569
570
409552
            if (fdd->post_process) {
571
                ret = fdd->post_process(avctx, frame);
572
                if (ret < 0) {
573
                    av_frame_unref(frame);
574
                    return ret;
575
                }
576
            }
577
        }
578
    }
579
580
    /* free the per-frame decode data */
581
853171
    av_buffer_unref(&frame->private_ref);
582
583
853171
    return ret;
584
}
585
586
416612
int attribute_align_arg avcodec_send_packet(AVCodecContext *avctx, const AVPacket *avpkt)
587
{
588
416612
    AVCodecInternal *avci = avctx->internal;
589
    int ret;
590
591

416612
    if (!avcodec_is_open(avctx) || !av_codec_is_decoder(avctx->codec))
592
        return AVERROR(EINVAL);
593
594
416612
    if (avctx->internal->draining)
595
720
        return AVERROR_EOF;
596
597

415892
    if (avpkt && !avpkt->size && avpkt->data)
598
        return AVERROR(EINVAL);
599
600
415892
    av_packet_unref(avci->buffer_pkt);
601

415892
    if (avpkt && (avpkt->data || avpkt->side_data_elems)) {
602
410063
        ret = av_packet_ref(avci->buffer_pkt, avpkt);
603
410063
        if (ret < 0)
604
            return ret;
605
    }
606
607
415892
    ret = av_bsf_send_packet(avci->bsf, avci->buffer_pkt);
608
415892
    if (ret < 0) {
609
        av_packet_unref(avci->buffer_pkt);
610
        return ret;
611
    }
612
613
415892
    if (!avci->buffer_frame->buf[0]) {
614
415892
        ret = decode_receive_frame_internal(avctx, avci->buffer_frame);
615

415892
        if (ret < 0 && ret != AVERROR(EAGAIN) && ret != AVERROR_EOF)
616
652
            return ret;
617
    }
618
619
415240
    return 0;
620
}
621
622
108441
static int apply_cropping(AVCodecContext *avctx, AVFrame *frame)
623
{
624
    /* make sure we are noisy about decoders returning invalid cropping data */
625
108441
    if (frame->crop_left >= INT_MAX - frame->crop_right        ||
626
108441
        frame->crop_top  >= INT_MAX - frame->crop_bottom       ||
627
108441
        (frame->crop_left + frame->crop_right) >= frame->width ||
628
108441
        (frame->crop_top + frame->crop_bottom) >= frame->height) {
629
        av_log(avctx, AV_LOG_WARNING,
630
               "Invalid cropping information set by a decoder: "
631
               "%"SIZE_SPECIFIER"/%"SIZE_SPECIFIER"/%"SIZE_SPECIFIER"/%"SIZE_SPECIFIER" "
632
               "(frame size %dx%d). This is a bug, please report it\n",
633
               frame->crop_left, frame->crop_right, frame->crop_top, frame->crop_bottom,
634
               frame->width, frame->height);
635
        frame->crop_left   = 0;
636
        frame->crop_right  = 0;
637
        frame->crop_top    = 0;
638
        frame->crop_bottom = 0;
639
        return 0;
640
    }
641
642
108441
    if (!avctx->apply_cropping)
643
        return 0;
644
645
108441
    return av_frame_apply_cropping(frame, avctx->flags & AV_CODEC_FLAG_UNALIGNED ?
646
                                          AV_FRAME_CROP_UNALIGNED : 0);
647
}
648
649
840809
int attribute_align_arg avcodec_receive_frame(AVCodecContext *avctx, AVFrame *frame)
650
{
651
840809
    AVCodecInternal *avci = avctx->internal;
652
    int ret, changed;
653
654
840809
    av_frame_unref(frame);
655
656

840809
    if (!avcodec_is_open(avctx) || !av_codec_is_decoder(avctx->codec))
657
        return AVERROR(EINVAL);
658
659
840809
    if (avci->buffer_frame->buf[0]) {
660
403530
        av_frame_move_ref(frame, avci->buffer_frame);
661
    } else {
662
437279
        ret = decode_receive_frame_internal(avctx, frame);
663
437279
        if (ret < 0)
664
409857
            return ret;
665
    }
666
667
430952
    if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
668
108441
        ret = apply_cropping(avctx, frame);
669
108441
        if (ret < 0) {
670
            av_frame_unref(frame);
671
            return ret;
672
        }
673
    }
674
675
430952
    avctx->frame_number++;
676
677
430952
    if (avctx->flags & AV_CODEC_FLAG_DROPCHANGED) {
678
679
        if (avctx->frame_number == 1) {
680
            avci->initial_format = frame->format;
681
            switch(avctx->codec_type) {
682
            case AVMEDIA_TYPE_VIDEO:
683
                avci->initial_width  = frame->width;
684
                avci->initial_height = frame->height;
685
                break;
686
            case AVMEDIA_TYPE_AUDIO:
687
                avci->initial_sample_rate = frame->sample_rate ? frame->sample_rate :
688
                                                                 avctx->sample_rate;
689
                avci->initial_channels       = frame->channels;
690
                avci->initial_channel_layout = frame->channel_layout;
691
                break;
692
            }
693
        }
694
695
        if (avctx->frame_number > 1) {
696
            changed = avci->initial_format != frame->format;
697
698
            switch(avctx->codec_type) {
699
            case AVMEDIA_TYPE_VIDEO:
700
                changed |= avci->initial_width  != frame->width ||
701
                           avci->initial_height != frame->height;
702
                break;
703
            case AVMEDIA_TYPE_AUDIO:
704
                changed |= avci->initial_sample_rate    != frame->sample_rate ||
705
                           avci->initial_sample_rate    != avctx->sample_rate ||
706
                           avci->initial_channels       != frame->channels ||
707
                           avci->initial_channel_layout != frame->channel_layout;
708
                break;
709
            }
710
711
            if (changed) {
712
                avci->changed_frames_dropped++;
713
                av_log(avctx, AV_LOG_INFO, "dropped changed frame #%d pts %"PRId64
714
                                            " drop count: %d \n",
715
                                            avctx->frame_number, frame->pts,
716
                                            avci->changed_frames_dropped);
717
                av_frame_unref(frame);
718
                return AVERROR_INPUT_CHANGED;
719
            }
720
        }
721
    }
722
430952
    return 0;
723
}
724
725
7041
static int compat_decode(AVCodecContext *avctx, AVFrame *frame,
726
                         int *got_frame, const AVPacket *pkt)
727
{
728
7041
    AVCodecInternal *avci = avctx->internal;
729
7041
    int ret = 0;
730
731
7041
    av_assert0(avci->compat_decode_consumed == 0);
732
733

7041
    if (avci->draining_done && pkt && pkt->size != 0) {
734
        av_log(avctx, AV_LOG_WARNING, "Got unexpected packet after EOF\n");
735
        avcodec_flush_buffers(avctx);
736
    }
737
738
7041
    *got_frame = 0;
739
740
7041
    if (avci->compat_decode_partial_size > 0 &&
741
        avci->compat_decode_partial_size != pkt->size) {
742
        av_log(avctx, AV_LOG_ERROR,
743
               "Got unexpected packet size after a partial decode\n");
744
        ret = AVERROR(EINVAL);
745
        goto finish;
746
    }
747
748
7041
    if (!avci->compat_decode_partial_size) {
749
7041
        ret = avcodec_send_packet(avctx, pkt);
750
7041
        if (ret == AVERROR_EOF)
751
49
            ret = 0;
752
6992
        else if (ret == AVERROR(EAGAIN)) {
753
            /* we fully drain all the output in each decode call, so this should not
754
             * ever happen */
755
            ret = AVERROR_BUG;
756
            goto finish;
757
6992
        } else if (ret < 0)
758
            goto finish;
759
    }
760
761
13962
    while (ret >= 0) {
762
13962
        ret = avcodec_receive_frame(avctx, frame);
763
13962
        if (ret < 0) {
764

6992
            if (ret == AVERROR(EAGAIN) || ret == AVERROR_EOF)
765
6992
                ret = 0;
766
6992
            goto finish;
767
        }
768
769
6970
        if (frame != avci->compat_decode_frame) {
770
6970
            if (!avctx->refcounted_frames) {
771
3522
                ret = unrefcount_frame(avci, frame);
772
3522
                if (ret < 0)
773
                    goto finish;
774
            }
775
776
6970
            *got_frame = 1;
777
6970
            frame = avci->compat_decode_frame;
778
        } else {
779
            if (!avci->compat_decode_warned) {
780
                av_log(avctx, AV_LOG_WARNING, "The deprecated avcodec_decode_* "
781
                       "API cannot return all the frames for this decoder. "
782
                       "Some frames will be dropped. Update your code to the "
783
                       "new decoding API to fix this.\n");
784
                avci->compat_decode_warned = 1;
785
            }
786
        }
787
788

6970
        if (avci->draining || (!avctx->codec->bsfs && avci->compat_decode_consumed < pkt->size))
789
            break;
790
    }
791
792
49
finish:
793
7041
    if (ret == 0) {
794
        /* if there are any bsfs then assume full packet is always consumed */
795
7041
        if (avctx->codec->bsfs)
796
            ret = pkt->size;
797
        else
798
7041
            ret = FFMIN(avci->compat_decode_consumed, pkt->size);
799
    }
800
7041
    avci->compat_decode_consumed = 0;
801
7041
    avci->compat_decode_partial_size = (ret >= 0) ? pkt->size - ret : 0;
802
803
7041
    return ret;
804
}
805
806
3499
int attribute_align_arg avcodec_decode_video2(AVCodecContext *avctx, AVFrame *picture,
807
                                              int *got_picture_ptr,
808
                                              const AVPacket *avpkt)
809
{
810
3499
    return compat_decode(avctx, picture, got_picture_ptr, avpkt);
811
}
812
813
3542
int attribute_align_arg avcodec_decode_audio4(AVCodecContext *avctx,
814
                                              AVFrame *frame,
815
                                              int *got_frame_ptr,
816
                                              const AVPacket *avpkt)
817
{
818
3542
    return compat_decode(avctx, frame, got_frame_ptr, avpkt);
819
}
820
821
1226
static void get_subtitle_defaults(AVSubtitle *sub)
822
{
823
1226
    memset(sub, 0, sizeof(*sub));
824
1226
    sub->pts = AV_NOPTS_VALUE;
825
1226
}
826
827
#define UTF8_MAX_BYTES 4 /* 5 and 6 bytes sequences should not be used */
828
1197
static int recode_subtitle(AVCodecContext *avctx,
829
                           AVPacket *outpkt, const AVPacket *inpkt)
830
{
831
#if CONFIG_ICONV
832
1197
    iconv_t cd = (iconv_t)-1;
833
1197
    int ret = 0;
834
    char *inb, *outb;
835
    size_t inl, outl;
836
    AVPacket tmp;
837
#endif
838
839

1197
    if (avctx->sub_charenc_mode != FF_SUB_CHARENC_MODE_PRE_DECODER || inpkt->size == 0)
840
1104
        return 0;
841
842
#if CONFIG_ICONV
843
93
    cd = iconv_open("UTF-8", avctx->sub_charenc);
844
93
    av_assert0(cd != (iconv_t)-1);
845
846
93
    inb = inpkt->data;
847
93
    inl = inpkt->size;
848
849
93
    if (inl >= INT_MAX / UTF8_MAX_BYTES - AV_INPUT_BUFFER_PADDING_SIZE) {
850
        av_log(avctx, AV_LOG_ERROR, "Subtitles packet is too big for recoding\n");
851
        ret = AVERROR(ENOMEM);
852
        goto end;
853
    }
854
855
93
    ret = av_new_packet(&tmp, inl * UTF8_MAX_BYTES);
856
93
    if (ret < 0)
857
        goto end;
858
93
    outpkt->buf  = tmp.buf;
859
93
    outpkt->data = tmp.data;
860
93
    outpkt->size = tmp.size;
861
93
    outb = outpkt->data;
862
93
    outl = outpkt->size;
863
864

186
    if (iconv(cd, &inb, &inl, &outb, &outl) == (size_t)-1 ||
865
93
        iconv(cd, NULL, NULL, &outb, &outl) == (size_t)-1 ||
866

93
        outl >= outpkt->size || inl != 0) {
867
        ret = FFMIN(AVERROR(errno), -1);
868
        av_log(avctx, AV_LOG_ERROR, "Unable to recode subtitle event \"%s\" "
869
               "from %s to UTF-8\n", inpkt->data, avctx->sub_charenc);
870
        av_packet_unref(&tmp);
871
        goto end;
872
    }
873
93
    outpkt->size -= outl;
874
93
    memset(outpkt->data + outpkt->size, 0, outl);
875
876
93
end:
877
93
    if (cd != (iconv_t)-1)
878
93
        iconv_close(cd);
879
93
    return ret;
880
#else
881
    av_log(avctx, AV_LOG_ERROR, "requesting subtitles recoding without iconv");
882
    return AVERROR(EINVAL);
883
#endif
884
}
885
886
552
static int utf8_check(const uint8_t *str)
887
{
888
    const uint8_t *byte;
889
    uint32_t codepoint, min;
890
891
46245
    while (*str) {
892
45693
        byte = str;
893


48466
        GET_UTF8(codepoint, *(byte++), return 0;);
894

46389
        min = byte - str == 1 ? 0 : byte - str == 2 ? 0x80 :
895
696
              1 << (5 * (byte - str) - 4);
896

45693
        if (codepoint < min || codepoint >= 0x110000 ||
897
45693
            codepoint == 0xFFFE /* BOM */ ||
898
            codepoint >= 0xD800 && codepoint <= 0xDFFF /* surrogates */)
899
            return 0;
900
45693
        str = byte;
901
    }
902
552
    return 1;
903
}
904
905
#if FF_API_ASS_TIMING
906
static void insert_ts(AVBPrint *buf, int ts)
907
{
908
    if (ts == -1) {
909
        av_bprintf(buf, "9:59:59.99,");
910
    } else {
911
        int h, m, s;
912
913
        h = ts/360000;  ts -= 360000*h;
914
        m = ts/  6000;  ts -=   6000*m;
915
        s = ts/   100;  ts -=    100*s;
916
        av_bprintf(buf, "%d:%02d:%02d.%02d,", h, m, s, ts);
917
    }
918
}
919
920
static int convert_sub_to_old_ass_form(AVSubtitle *sub, const AVPacket *pkt, AVRational tb)
921
{
922
    int i;
923
    AVBPrint buf;
924
925
    av_bprint_init(&buf, 0, AV_BPRINT_SIZE_UNLIMITED);
926
927
    for (i = 0; i < sub->num_rects; i++) {
928
        char *final_dialog;
929
        const char *dialog;
930
        AVSubtitleRect *rect = sub->rects[i];
931
        int ts_start, ts_duration = -1;
932
        long int layer;
933
934
        if (rect->type != SUBTITLE_ASS || !strncmp(rect->ass, "Dialogue: ", 10))
935
            continue;
936
937
        av_bprint_clear(&buf);
938
939
        /* skip ReadOrder */
940
        dialog = strchr(rect->ass, ',');
941
        if (!dialog)
942
            continue;
943
        dialog++;
944
945
        /* extract Layer or Marked */
946
        layer = strtol(dialog, (char**)&dialog, 10);
947
        if (*dialog != ',')
948
            continue;
949
        dialog++;
950
951
        /* rescale timing to ASS time base (ms) */
952
        ts_start = av_rescale_q(pkt->pts, tb, av_make_q(1, 100));
953
        if (pkt->duration != -1)
954
            ts_duration = av_rescale_q(pkt->duration, tb, av_make_q(1, 100));
955
        sub->end_display_time = FFMAX(sub->end_display_time, 10 * ts_duration);
956
957
        /* construct ASS (standalone file form with timestamps) string */
958
        av_bprintf(&buf, "Dialogue: %ld,", layer);
959
        insert_ts(&buf, ts_start);
960
        insert_ts(&buf, ts_duration == -1 ? -1 : ts_start + ts_duration);
961
        av_bprintf(&buf, "%s\r\n", dialog);
962
963
        final_dialog = av_strdup(buf.str);
964
        if (!av_bprint_is_complete(&buf) || !final_dialog) {
965
            av_freep(&final_dialog);
966
            av_bprint_finalize(&buf, NULL);
967
            return AVERROR(ENOMEM);
968
        }
969
        av_freep(&rect->ass);
970
        rect->ass = final_dialog;
971
    }
972
973
    av_bprint_finalize(&buf, NULL);
974
    return 0;
975
}
976
#endif
977
978
1226
int avcodec_decode_subtitle2(AVCodecContext *avctx, AVSubtitle *sub,
979
                             int *got_sub_ptr,
980
                             AVPacket *avpkt)
981
{
982
1226
    int i, ret = 0;
983
984

1226
    if (!avpkt->data && avpkt->size) {
985
        av_log(avctx, AV_LOG_ERROR, "invalid packet: NULL data, size != 0\n");
986
        return AVERROR(EINVAL);
987
    }
988
1226
    if (!avctx->codec)
989
        return AVERROR(EINVAL);
990
1226
    if (avctx->codec->type != AVMEDIA_TYPE_SUBTITLE) {
991
        av_log(avctx, AV_LOG_ERROR, "Invalid media type for subtitles\n");
992
        return AVERROR(EINVAL);
993
    }
994
995
1226
    *got_sub_ptr = 0;
996
1226
    get_subtitle_defaults(sub);
997
998

1226
    if ((avctx->codec->capabilities & AV_CODEC_CAP_DELAY) || avpkt->size) {
999
1197
        AVPacket pkt_recoded = *avpkt;
1000
1001
1197
        ret = recode_subtitle(avctx, &pkt_recoded, avpkt);
1002
1197
        if (ret < 0) {
1003
            *got_sub_ptr = 0;
1004
        } else {
1005
1197
             ret = extract_packet_props(avctx->internal, &pkt_recoded);
1006
1197
             if (ret < 0)
1007
                return ret;
1008
1009

1197
            if (avctx->pkt_timebase.num && avpkt->pts != AV_NOPTS_VALUE)
1010
1191
                sub->pts = av_rescale_q(avpkt->pts,
1011
1191
                                        avctx->pkt_timebase, AV_TIME_BASE_Q);
1012
1197
            ret = avctx->codec->decode(avctx, sub, got_sub_ptr, &pkt_recoded);
1013
            av_assert1((ret >= 0) >= !!*got_sub_ptr &&
1014
                       !!*got_sub_ptr >= !!sub->num_rects);
1015
1016
#if FF_API_ASS_TIMING
1017
1197
            if (avctx->sub_text_format == FF_SUB_TEXT_FMT_ASS_WITH_TIMINGS
1018

1
                && *got_sub_ptr && sub->num_rects) {
1019
                const AVRational tb = avctx->pkt_timebase.num ? avctx->pkt_timebase
1020
                                                              : avctx->time_base;
1021
                int err = convert_sub_to_old_ass_form(sub, avpkt, tb);
1022
                if (err < 0)
1023
                    ret = err;
1024
            }
1025
#endif
1026
1027

1197
            if (sub->num_rects && !sub->end_display_time && avpkt->duration &&
1028
380
                avctx->pkt_timebase.num) {
1029
380
                AVRational ms = { 1, 1000 };
1030
380
                sub->end_display_time = av_rescale_q(avpkt->duration,
1031
                                                     avctx->pkt_timebase, ms);
1032
            }
1033
1034
1197
            if (avctx->codec_descriptor->props & AV_CODEC_PROP_BITMAP_SUB)
1035
104
                sub->format = 0;
1036
1093
            else if (avctx->codec_descriptor->props & AV_CODEC_PROP_TEXT_SUB)
1037
1093
                sub->format = 1;
1038
1039
1838
            for (i = 0; i < sub->num_rects; i++) {
1040
641
                if (avctx->sub_charenc_mode != FF_SUB_CHARENC_MODE_IGNORE &&
1041

641
                    sub->rects[i]->ass && !utf8_check(sub->rects[i]->ass)) {
1042
                    av_log(avctx, AV_LOG_ERROR,
1043
                           "Invalid UTF-8 in decoded subtitles text; "
1044
                           "maybe missing -sub_charenc option\n");
1045
                    avsubtitle_free(sub);
1046
                    ret = AVERROR_INVALIDDATA;
1047
                    break;
1048
                }
1049
            }
1050
1051
1197
            if (avpkt->data != pkt_recoded.data) { // did we recode?
1052
                /* prevent from destroying side data from original packet */
1053
93
                pkt_recoded.side_data = NULL;
1054
93
                pkt_recoded.side_data_elems = 0;
1055
1056
93
                av_packet_unref(&pkt_recoded);
1057
            }
1058
        }
1059
1060
1197
        if (*got_sub_ptr)
1061
640
            avctx->frame_number++;
1062
    }
1063
1064
1226
    return ret;
1065
}
1066
1067
1373
enum AVPixelFormat avcodec_default_get_format(struct AVCodecContext *avctx,
1068
                                              const enum AVPixelFormat *fmt)
1069
{
1070
    const AVPixFmtDescriptor *desc;
1071
    const AVCodecHWConfig *config;
1072
    int i, n;
1073
1074
    // If a device was supplied when the codec was opened, assume that the
1075
    // user wants to use it.
1076

1373
    if (avctx->hw_device_ctx && avctx->codec->hw_configs) {
1077
        AVHWDeviceContext *device_ctx =
1078
            (AVHWDeviceContext*)avctx->hw_device_ctx->data;
1079
        for (i = 0;; i++) {
1080
            config = &avctx->codec->hw_configs[i]->public;
1081
            if (!config)
1082
                break;
1083
            if (!(config->methods &
1084
                  AV_CODEC_HW_CONFIG_METHOD_HW_DEVICE_CTX))
1085
                continue;
1086
            if (device_ctx->type != config->device_type)
1087
                continue;
1088
            for (n = 0; fmt[n] != AV_PIX_FMT_NONE; n++) {
1089
                if (config->pix_fmt == fmt[n])
1090
                    return fmt[n];
1091
            }
1092
        }
1093
    }
1094
    // No device or other setup, so we have to choose from things which
1095
    // don't any other external information.
1096
1097
    // If the last element of the list is a software format, choose it
1098
    // (this should be best software format if any exist).
1099
4903
    for (n = 0; fmt[n] != AV_PIX_FMT_NONE; n++);
1100
1373
    desc = av_pix_fmt_desc_get(fmt[n - 1]);
1101
1373
    if (!(desc->flags & AV_PIX_FMT_FLAG_HWACCEL))
1102
1373
        return fmt[n - 1];
1103
1104
    // Finally, traverse the list in order and choose the first entry
1105
    // with no external dependencies (if there is no hardware configuration
1106
    // information available then this just picks the first entry).
1107
    for (n = 0; fmt[n] != AV_PIX_FMT_NONE; n++) {
1108
        for (i = 0;; i++) {
1109
            config = avcodec_get_hw_config(avctx->codec, i);
1110
            if (!config)
1111
                break;
1112
            if (config->pix_fmt == fmt[n])
1113
                break;
1114
        }
1115
        if (!config) {
1116
            // No specific config available, so the decoder must be able
1117
            // to handle this format without any additional setup.
1118
            return fmt[n];
1119
        }
1120
        if (config->methods & AV_CODEC_HW_CONFIG_METHOD_INTERNAL) {
1121
            // Usable with only internal setup.
1122
            return fmt[n];
1123
        }
1124
    }
1125
1126
    // Nothing is usable, give up.
1127
    return AV_PIX_FMT_NONE;
1128
}
1129
1130
int ff_decode_get_hw_frames_ctx(AVCodecContext *avctx,
1131
                                enum AVHWDeviceType dev_type)
1132
{
1133
    AVHWDeviceContext *device_ctx;
1134
    AVHWFramesContext *frames_ctx;
1135
    int ret;
1136
1137
    if (!avctx->hwaccel)
1138
        return AVERROR(ENOSYS);
1139
1140
    if (avctx->hw_frames_ctx)
1141
        return 0;
1142
    if (!avctx->hw_device_ctx) {
1143
        av_log(avctx, AV_LOG_ERROR, "A hardware frames or device context is "
1144
                "required for hardware accelerated decoding.\n");
1145
        return AVERROR(EINVAL);
1146
    }
1147
1148
    device_ctx = (AVHWDeviceContext *)avctx->hw_device_ctx->data;
1149
    if (device_ctx->type != dev_type) {
1150
        av_log(avctx, AV_LOG_ERROR, "Device type %s expected for hardware "
1151
               "decoding, but got %s.\n", av_hwdevice_get_type_name(dev_type),
1152
               av_hwdevice_get_type_name(device_ctx->type));
1153
        return AVERROR(EINVAL);
1154
    }
1155
1156
    ret = avcodec_get_hw_frames_parameters(avctx,
1157
                                           avctx->hw_device_ctx,
1158
                                           avctx->hwaccel->pix_fmt,
1159
                                           &avctx->hw_frames_ctx);
1160
    if (ret < 0)
1161
        return ret;
1162
1163
    frames_ctx = (AVHWFramesContext*)avctx->hw_frames_ctx->data;
1164
1165
1166
    if (frames_ctx->initial_pool_size) {
1167
        // We guarantee 4 base work surfaces. The function above guarantees 1
1168
        // (the absolute minimum), so add the missing count.
1169
        frames_ctx->initial_pool_size += 3;
1170
    }
1171
1172
    ret = av_hwframe_ctx_init(avctx->hw_frames_ctx);
1173
    if (ret < 0) {
1174
        av_buffer_unref(&avctx->hw_frames_ctx);
1175
        return ret;
1176
    }
1177
1178
    return 0;
1179
}
1180
1181
int avcodec_get_hw_frames_parameters(AVCodecContext *avctx,
1182
                                     AVBufferRef *device_ref,
1183
                                     enum AVPixelFormat hw_pix_fmt,
1184
                                     AVBufferRef **out_frames_ref)
1185
{
1186
    AVBufferRef *frames_ref = NULL;
1187
    const AVCodecHWConfigInternal *hw_config;
1188
    const AVHWAccel *hwa;
1189
    int i, ret;
1190
1191
    for (i = 0;; i++) {
1192
        hw_config = avctx->codec->hw_configs[i];
1193
        if (!hw_config)
1194
            return AVERROR(ENOENT);
1195
        if (hw_config->public.pix_fmt == hw_pix_fmt)
1196
            break;
1197
    }
1198
1199
    hwa = hw_config->hwaccel;
1200
    if (!hwa || !hwa->frame_params)
1201
        return AVERROR(ENOENT);
1202
1203
    frames_ref = av_hwframe_ctx_alloc(device_ref);
1204
    if (!frames_ref)
1205
        return AVERROR(ENOMEM);
1206
1207
    ret = hwa->frame_params(avctx, frames_ref);
1208
    if (ret >= 0) {
1209
        AVHWFramesContext *frames_ctx = (AVHWFramesContext*)frames_ref->data;
1210
1211
        if (frames_ctx->initial_pool_size) {
1212
            // If the user has requested that extra output surfaces be
1213
            // available then add them here.
1214
            if (avctx->extra_hw_frames > 0)
1215
                frames_ctx->initial_pool_size += avctx->extra_hw_frames;
1216
1217
            // If frame threading is enabled then an extra surface per thread
1218
            // is also required.
1219
            if (avctx->active_thread_type & FF_THREAD_FRAME)
1220
                frames_ctx->initial_pool_size += avctx->thread_count;
1221
        }
1222
1223
        *out_frames_ref = frames_ref;
1224
    } else {
1225
        av_buffer_unref(&frames_ref);
1226
    }
1227
    return ret;
1228
}
1229
1230
static int hwaccel_init(AVCodecContext *avctx,
1231
                        const AVCodecHWConfigInternal *hw_config)
1232
{
1233
    const AVHWAccel *hwaccel;
1234
    int err;
1235
1236
    hwaccel = hw_config->hwaccel;
1237
    if (hwaccel->capabilities & AV_HWACCEL_CODEC_CAP_EXPERIMENTAL &&
1238
        avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
1239
        av_log(avctx, AV_LOG_WARNING, "Ignoring experimental hwaccel: %s\n",
1240
               hwaccel->name);
1241
        return AVERROR_PATCHWELCOME;
1242
    }
1243
1244
    if (hwaccel->priv_data_size) {
1245
        avctx->internal->hwaccel_priv_data =
1246
            av_mallocz(hwaccel->priv_data_size);
1247
        if (!avctx->internal->hwaccel_priv_data)
1248
            return AVERROR(ENOMEM);
1249
    }
1250
1251
    avctx->hwaccel = hwaccel;
1252
    if (hwaccel->init) {
1253
        err = hwaccel->init(avctx);
1254
        if (err < 0) {
1255
            av_log(avctx, AV_LOG_ERROR, "Failed setup for format %s: "
1256
                   "hwaccel initialisation returned error.\n",
1257
                   av_get_pix_fmt_name(hw_config->public.pix_fmt));
1258
            av_freep(&avctx->internal->hwaccel_priv_data);
1259
            avctx->hwaccel = NULL;
1260
            return err;
1261
        }
1262
    }
1263
1264
    return 0;
1265
}
1266
1267
2302
static void hwaccel_uninit(AVCodecContext *avctx)
1268
{
1269

2302
    if (avctx->hwaccel && avctx->hwaccel->uninit)
1270
        avctx->hwaccel->uninit(avctx);
1271
1272
2302
    av_freep(&avctx->internal->hwaccel_priv_data);
1273
1274
2302
    avctx->hwaccel = NULL;
1275
1276
2302
    av_buffer_unref(&avctx->hw_frames_ctx);
1277
2302
}
1278
1279
2302
int ff_get_format(AVCodecContext *avctx, const enum AVPixelFormat *fmt)
1280
{
1281
    const AVPixFmtDescriptor *desc;
1282
    enum AVPixelFormat *choices;
1283
    enum AVPixelFormat ret, user_choice;
1284
    const AVCodecHWConfigInternal *hw_config;
1285
    const AVCodecHWConfig *config;
1286
    int i, n, err;
1287
1288
    // Find end of list.
1289
8379
    for (n = 0; fmt[n] != AV_PIX_FMT_NONE; n++);
1290
    // Must contain at least one entry.
1291
2302
    av_assert0(n >= 1);
1292
    // If a software format is available, it must be the last entry.
1293
2302
    desc = av_pix_fmt_desc_get(fmt[n - 1]);
1294
2302
    if (desc->flags & AV_PIX_FMT_FLAG_HWACCEL) {
1295
        // No software format is available.
1296
    } else {
1297
2302
        avctx->sw_pix_fmt = fmt[n - 1];
1298
    }
1299
1300
2302
    choices = av_malloc_array(n + 1, sizeof(*choices));
1301
2302
    if (!choices)
1302
        return AV_PIX_FMT_NONE;
1303
1304
2302
    memcpy(choices, fmt, (n + 1) * sizeof(*choices));
1305
1306
    for (;;) {
1307
        // Remove the previous hwaccel, if there was one.
1308
2302
        hwaccel_uninit(avctx);
1309
1310
2302
        user_choice = avctx->get_format(avctx, choices);
1311
2302
        if (user_choice == AV_PIX_FMT_NONE) {
1312
            // Explicitly chose nothing, give up.
1313
            ret = AV_PIX_FMT_NONE;
1314
            break;
1315
        }
1316
1317
2302
        desc = av_pix_fmt_desc_get(user_choice);
1318
2302
        if (!desc) {
1319
            av_log(avctx, AV_LOG_ERROR, "Invalid format returned by "
1320
                   "get_format() callback.\n");
1321
            ret = AV_PIX_FMT_NONE;
1322
            break;
1323
        }
1324
2302
        av_log(avctx, AV_LOG_DEBUG, "Format %s chosen by get_format().\n",
1325
               desc->name);
1326
1327
6077
        for (i = 0; i < n; i++) {
1328
6077
            if (choices[i] == user_choice)
1329
2302
                break;
1330
        }
1331
2302
        if (i == n) {
1332
            av_log(avctx, AV_LOG_ERROR, "Invalid return from get_format(): "
1333
                   "%s not in possible list.\n", desc->name);
1334
            ret = AV_PIX_FMT_NONE;
1335
            break;
1336
        }
1337
1338
2302
        if (avctx->codec->hw_configs) {
1339
6200
            for (i = 0;; i++) {
1340
6200
                hw_config = avctx->codec->hw_configs[i];
1341
6200
                if (!hw_config)
1342
2199
                    break;
1343
4001
                if (hw_config->public.pix_fmt == user_choice)
1344
                    break;
1345
            }
1346
        } else {
1347
103
            hw_config = NULL;
1348
        }
1349
1350
2302
        if (!hw_config) {
1351
            // No config available, so no extra setup required.
1352
2302
            ret = user_choice;
1353
2302
            break;
1354
        }
1355
        config = &hw_config->public;
1356
1357
        if (config->methods &
1358
            AV_CODEC_HW_CONFIG_METHOD_HW_FRAMES_CTX &&
1359
            avctx->hw_frames_ctx) {
1360
            const AVHWFramesContext *frames_ctx =
1361
                (AVHWFramesContext*)avctx->hw_frames_ctx->data;
1362
            if (frames_ctx->format != user_choice) {
1363
                av_log(avctx, AV_LOG_ERROR, "Invalid setup for format %s: "
1364
                       "does not match the format of the provided frames "
1365
                       "context.\n", desc->name);
1366
                goto try_again;
1367
            }
1368
        } else if (config->methods &
1369
                   AV_CODEC_HW_CONFIG_METHOD_HW_DEVICE_CTX &&
1370
                   avctx->hw_device_ctx) {
1371
            const AVHWDeviceContext *device_ctx =
1372
                (AVHWDeviceContext*)avctx->hw_device_ctx->data;
1373
            if (device_ctx->type != config->device_type) {
1374
                av_log(avctx, AV_LOG_ERROR, "Invalid setup for format %s: "
1375
                       "does not match the type of the provided device "
1376
                       "context.\n", desc->name);
1377
                goto try_again;
1378
            }
1379
        } else if (config->methods &
1380
                   AV_CODEC_HW_CONFIG_METHOD_INTERNAL) {
1381
            // Internal-only setup, no additional configuration.
1382
        } else if (config->methods &
1383
                   AV_CODEC_HW_CONFIG_METHOD_AD_HOC) {
1384
            // Some ad-hoc configuration we can't see and can't check.
1385
        } else {
1386
            av_log(avctx, AV_LOG_ERROR, "Invalid setup for format %s: "
1387
                   "missing configuration.\n", desc->name);
1388
            goto try_again;
1389
        }
1390
        if (hw_config->hwaccel) {
1391
            av_log(avctx, AV_LOG_DEBUG, "Format %s requires hwaccel "
1392
                   "initialisation.\n", desc->name);
1393
            err = hwaccel_init(avctx, hw_config);
1394
            if (err < 0)
1395
                goto try_again;
1396
        }
1397
        ret = user_choice;
1398
        break;
1399
1400
    try_again:
1401
        av_log(avctx, AV_LOG_DEBUG, "Format %s not usable, retrying "
1402
               "get_format() without it.\n", desc->name);
1403
        for (i = 0; i < n; i++) {
1404
            if (choices[i] == user_choice)
1405
                break;
1406
        }
1407
        for (; i + 1 < n; i++)
1408
            choices[i] = choices[i + 1];
1409
        --n;
1410
    }
1411
1412
2302
    av_freep(&choices);
1413
2302
    return ret;
1414
}
1415
1416
16305
static void frame_pool_free(void *opaque, uint8_t *data)
1417
{
1418
16305
    FramePool *pool = (FramePool*)data;
1419
    int i;
1420
1421
81525
    for (i = 0; i < FF_ARRAY_ELEMS(pool->pools); i++)
1422
65220
        av_buffer_pool_uninit(&pool->pools[i]);
1423
1424
16305
    av_freep(&data);
1425
16305
}
1426
1427
16305
static AVBufferRef *frame_pool_alloc(void)
1428
{
1429
16305
    FramePool *pool = av_mallocz(sizeof(*pool));
1430
    AVBufferRef *buf;
1431
1432
16305
    if (!pool)
1433
        return NULL;
1434
1435
16305
    buf = av_buffer_create((uint8_t*)pool, sizeof(*pool),
1436
                           frame_pool_free, NULL, 0);
1437
16305
    if (!buf) {
1438
        av_freep(&pool);
1439
        return NULL;
1440
    }
1441
1442
16305
    return buf;
1443
}
1444
1445
415108
static int update_frame_pool(AVCodecContext *avctx, AVFrame *frame)
1446
{
1447
830216
    FramePool *pool = avctx->internal->pool ?
1448
415108
                      (FramePool*)avctx->internal->pool->data : NULL;
1449
    AVBufferRef *pool_buf;
1450
    int i, ret, ch, planes;
1451
1452
415108
    if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
1453
322693
        int planar = av_sample_fmt_is_planar(frame->format);
1454
322693
        ch     = frame->channels;
1455
322693
        planes = planar ? ch : 1;
1456
    }
1457
1458

415108
    if (pool && pool->format == frame->format) {
1459
405423
        if (avctx->codec_type == AVMEDIA_TYPE_VIDEO &&
1460

84227
            pool->width == frame->width && pool->height == frame->height)
1461
83972
            return 0;
1462

321451
        if (avctx->codec_type == AVMEDIA_TYPE_AUDIO && pool->planes == planes &&
1463

321183
            pool->channels == ch && frame->nb_samples == pool->samples)
1464
314831
            return 0;
1465
    }
1466
1467
16305
    pool_buf = frame_pool_alloc();
1468
16305
    if (!pool_buf)
1469
        return AVERROR(ENOMEM);
1470
16305
    pool = (FramePool*)pool_buf->data;
1471
1472
16305
    switch (avctx->codec_type) {
1473
8443
    case AVMEDIA_TYPE_VIDEO: {
1474
        uint8_t *data[4];
1475
        int linesize[4];
1476
8443
        int size[4] = { 0 };
1477
8443
        int w = frame->width;
1478
8443
        int h = frame->height;
1479
        int tmpsize, unaligned;
1480
1481
8443
        avcodec_align_dimensions2(avctx, &w, &h, pool->stride_align);
1482
1483
        do {
1484
            // NOTE: do not align linesizes individually, this breaks e.g. assumptions
1485
            // that linesize[0] == 2*linesize[1] in the MPEG-encoder for 4:2:2
1486
16924
            ret = av_image_fill_linesizes(linesize, avctx->pix_fmt, w);
1487
16924
            if (ret < 0)
1488
                goto fail;
1489
            // increase alignment of w for next try (rhs gives the lowest bit set in w)
1490
16924
            w += w & ~(w - 1);
1491
1492
16924
            unaligned = 0;
1493
84620
            for (i = 0; i < 4; i++)
1494
67696
                unaligned |= linesize[i] % pool->stride_align[i];
1495
16924
        } while (unaligned);
1496
1497
8443
        tmpsize = av_image_fill_pointers(data, avctx->pix_fmt, h,
1498
                                         NULL, linesize);
1499
8443
        if (tmpsize < 0) {
1500
            ret = tmpsize;
1501
            goto fail;
1502
        }
1503
1504

24003
        for (i = 0; i < 3 && data[i + 1]; i++)
1505
15560
            size[i] = data[i + 1] - data[i];
1506
8443
        size[i] = tmpsize - (data[i] - data[0]);
1507
1508
42215
        for (i = 0; i < 4; i++) {
1509
33772
            pool->linesize[i] = linesize[i];
1510
33772
            if (size[i]) {
1511
24003
                pool->pools[i] = av_buffer_pool_init(size[i] + 16 + STRIDE_ALIGN - 1,
1512
                                                     CONFIG_MEMORY_POISONING ?
1513
                                                        NULL :
1514
                                                        av_buffer_allocz);
1515
24003
                if (!pool->pools[i]) {
1516
                    ret = AVERROR(ENOMEM);
1517
                    goto fail;
1518
                }
1519
            }
1520
        }
1521
8443
        pool->format = frame->format;
1522
8443
        pool->width  = frame->width;
1523
8443
        pool->height = frame->height;
1524
1525
8443
        break;
1526
        }
1527
7862
    case AVMEDIA_TYPE_AUDIO: {
1528
7862
        ret = av_samples_get_buffer_size(&pool->linesize[0], ch,
1529
7862
                                         frame->nb_samples, frame->format, 0);
1530
7862
        if (ret < 0)
1531
            goto fail;
1532
1533
7862
        pool->pools[0] = av_buffer_pool_init(pool->linesize[0], NULL);
1534
7862
        if (!pool->pools[0]) {
1535
            ret = AVERROR(ENOMEM);
1536
            goto fail;
1537
        }
1538
1539
7862
        pool->format     = frame->format;
1540
7862
        pool->planes     = planes;
1541
7862
        pool->channels   = ch;
1542
7862
        pool->samples = frame->nb_samples;
1543
7862
        break;
1544
        }
1545
    default: av_assert0(0);
1546
    }
1547
1548
16305
    av_buffer_unref(&avctx->internal->pool);
1549
16305
    avctx->internal->pool = pool_buf;
1550
1551
16305
    return 0;
1552
fail:
1553
    av_buffer_unref(&pool_buf);
1554
    return ret;
1555
}
1556
1557
322693
static int audio_get_buffer(AVCodecContext *avctx, AVFrame *frame)
1558
{
1559
322693
    FramePool *pool = (FramePool*)avctx->internal->pool->data;
1560
322693
    int planes = pool->planes;
1561
    int i;
1562
1563
322693
    frame->linesize[0] = pool->linesize[0];
1564
1565
322693
    if (planes > AV_NUM_DATA_POINTERS) {
1566
        frame->extended_data = av_mallocz_array(planes, sizeof(*frame->extended_data));
1567
        frame->nb_extended_buf = planes - AV_NUM_DATA_POINTERS;
1568
        frame->extended_buf  = av_mallocz_array(frame->nb_extended_buf,
1569
                                          sizeof(*frame->extended_buf));
1570
        if (!frame->extended_data || !frame->extended_buf) {
1571
            av_freep(&frame->extended_data);
1572
            av_freep(&frame->extended_buf);
1573
            return AVERROR(ENOMEM);
1574
        }
1575
    } else {
1576
322693
        frame->extended_data = frame->data;
1577
322693
        av_assert0(frame->nb_extended_buf == 0);
1578
    }
1579
1580
811111
    for (i = 0; i < FFMIN(planes, AV_NUM_DATA_POINTERS); i++) {
1581
488418
        frame->buf[i] = av_buffer_pool_get(pool->pools[0]);
1582
488418
        if (!frame->buf[i])
1583
            goto fail;
1584
488418
        frame->extended_data[i] = frame->data[i] = frame->buf[i]->data;
1585
    }
1586
322693
    for (i = 0; i < frame->nb_extended_buf; i++) {
1587
        frame->extended_buf[i] = av_buffer_pool_get(pool->pools[0]);
1588
        if (!frame->extended_buf[i])
1589
            goto fail;
1590
        frame->extended_data[i + AV_NUM_DATA_POINTERS] = frame->extended_buf[i]->data;
1591
    }
1592
1593
322693
    if (avctx->debug & FF_DEBUG_BUFFERS)
1594
        av_log(avctx, AV_LOG_DEBUG, "default_get_buffer called on frame %p", frame);
1595
1596
322693
    return 0;
1597
fail:
1598
    av_frame_unref(frame);
1599
    return AVERROR(ENOMEM);
1600
}
1601
1602
92415
static int video_get_buffer(AVCodecContext *s, AVFrame *pic)
1603
{
1604
92415
    FramePool *pool = (FramePool*)s->internal->pool->data;
1605
92415
    const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pic->format);
1606
    int i;
1607
1608


92415
    if (pic->data[0] || pic->data[1] || pic->data[2] || pic->data[3]) {
1609
        av_log(s, AV_LOG_ERROR, "pic->data[*]!=NULL in avcodec_default_get_buffer\n");
1610
        return -1;
1611
    }
1612
1613
92415
    if (!desc) {
1614
        av_log(s, AV_LOG_ERROR,
1615
            "Unable to get pixel format descriptor for format %s\n",
1616
            av_get_pix_fmt_name(pic->format));
1617
        return AVERROR(EINVAL);
1618
    }
1619
1620
92415
    memset(pic->data, 0, sizeof(pic->data));
1621
92415
    pic->extended_data = pic->data;
1622
1623

357286
    for (i = 0; i < 4 && pool->pools[i]; i++) {
1624
264871
        pic->linesize[i] = pool->linesize[i];
1625
1626
264871
        pic->buf[i] = av_buffer_pool_get(pool->pools[i]);
1627
264871
        if (!pic->buf[i])
1628
            goto fail;
1629
1630
264871
        pic->data[i] = pic->buf[i]->data;
1631
    }
1632
566864
    for (; i < AV_NUM_DATA_POINTERS; i++) {
1633
474449
        pic->data[i] = NULL;
1634
474449
        pic->linesize[i] = 0;
1635
    }
1636
92415
    if (desc->flags & AV_PIX_FMT_FLAG_PAL ||
1637

90288
        ((desc->flags & FF_PSEUDOPAL) && pic->data[1]))
1638
2403
        avpriv_set_systematic_pal2((uint32_t *)pic->data[1], pic->format);
1639
1640
92415
    if (s->debug & FF_DEBUG_BUFFERS)
1641
        av_log(s, AV_LOG_DEBUG, "default_get_buffer called on pic %p\n", pic);
1642
1643
92415
    return 0;
1644
fail:
1645
    av_frame_unref(pic);
1646
    return AVERROR(ENOMEM);
1647
}
1648
1649
415108
int avcodec_default_get_buffer2(AVCodecContext *avctx, AVFrame *frame, int flags)
1650
{
1651
    int ret;
1652
1653
415108
    if (avctx->hw_frames_ctx) {
1654
        ret = av_hwframe_get_buffer(avctx->hw_frames_ctx, frame, 0);
1655
        frame->width  = avctx->coded_width;
1656
        frame->height = avctx->coded_height;
1657
        return ret;
1658
    }
1659
1660
415108
    if ((ret = update_frame_pool(avctx, frame)) < 0)
1661
        return ret;
1662
1663
415108
    switch (avctx->codec_type) {
1664
92415
    case AVMEDIA_TYPE_VIDEO:
1665
92415
        return video_get_buffer(avctx, frame);
1666
322693
    case AVMEDIA_TYPE_AUDIO:
1667
322693
        return audio_get_buffer(avctx, frame);
1668
    default:
1669
        return -1;
1670
    }
1671
}
1672
1673
441737
static int add_metadata_from_side_data(const AVPacket *avpkt, AVFrame *frame)
1674
{
1675
    int size;
1676
    const uint8_t *side_metadata;
1677
1678
441737
    AVDictionary **frame_md = &frame->metadata;
1679
1680
441737
    side_metadata = av_packet_get_side_data(avpkt,
1681
                                            AV_PKT_DATA_STRINGS_METADATA, &size);
1682
441737
    return av_packet_unpack_dictionary(side_metadata, size, frame_md);
1683
}
1684
1685
441737
int ff_decode_frame_props(AVCodecContext *avctx, AVFrame *frame)
1686
{
1687
441737
    const AVPacket *pkt = avctx->internal->last_pkt_props;
1688
    int i;
1689
    static const struct {
1690
        enum AVPacketSideDataType packet;
1691
        enum AVFrameSideDataType frame;
1692
    } sd[] = {
1693
        { AV_PKT_DATA_REPLAYGAIN ,                AV_FRAME_DATA_REPLAYGAIN },
1694
        { AV_PKT_DATA_DISPLAYMATRIX,              AV_FRAME_DATA_DISPLAYMATRIX },
1695
        { AV_PKT_DATA_SPHERICAL,                  AV_FRAME_DATA_SPHERICAL },
1696
        { AV_PKT_DATA_STEREO3D,                   AV_FRAME_DATA_STEREO3D },
1697
        { AV_PKT_DATA_AUDIO_SERVICE_TYPE,         AV_FRAME_DATA_AUDIO_SERVICE_TYPE },
1698
        { AV_PKT_DATA_MASTERING_DISPLAY_METADATA, AV_FRAME_DATA_MASTERING_DISPLAY_METADATA },
1699
        { AV_PKT_DATA_CONTENT_LIGHT_LEVEL,        AV_FRAME_DATA_CONTENT_LIGHT_LEVEL },
1700
        { AV_PKT_DATA_A53_CC,                     AV_FRAME_DATA_A53_CC },
1701
        { AV_PKT_DATA_ICC_PROFILE,                AV_FRAME_DATA_ICC_PROFILE },
1702
    };
1703
1704
441737
    if (pkt) {
1705
441737
        frame->pts = pkt->pts;
1706
#if FF_API_PKT_PTS
1707
FF_DISABLE_DEPRECATION_WARNINGS
1708
441737
        frame->pkt_pts = pkt->pts;
1709
FF_ENABLE_DEPRECATION_WARNINGS
1710
#endif
1711
441737
        frame->pkt_pos      = pkt->pos;
1712
441737
        frame->pkt_duration = pkt->duration;
1713
441737
        frame->pkt_size     = pkt->size;
1714
1715
4417370
        for (i = 0; i < FF_ARRAY_ELEMS(sd); i++) {
1716
            int size;
1717
3975633
            uint8_t *packet_sd = av_packet_get_side_data(pkt, sd[i].packet, &size);
1718
3975633
            if (packet_sd) {
1719
209
                AVFrameSideData *frame_sd = av_frame_new_side_data(frame,
1720
                                                                   sd[i].frame,
1721
                                                                   size);
1722
209
                if (!frame_sd)
1723
                    return AVERROR(ENOMEM);
1724
1725
209
                memcpy(frame_sd->data, packet_sd, size);
1726
            }
1727
        }
1728
441737
        add_metadata_from_side_data(pkt, frame);
1729
1730
441737
        if (pkt->flags & AV_PKT_FLAG_DISCARD) {
1731
196
            frame->flags |= AV_FRAME_FLAG_DISCARD;
1732
        } else {
1733
441541
            frame->flags = (frame->flags & ~AV_FRAME_FLAG_DISCARD);
1734
        }
1735
    }
1736
441737
    frame->reordered_opaque = avctx->reordered_opaque;
1737
1738
441737
    if (frame->color_primaries == AVCOL_PRI_UNSPECIFIED)
1739
441737
        frame->color_primaries = avctx->color_primaries;
1740
441737
    if (frame->color_trc == AVCOL_TRC_UNSPECIFIED)
1741
441737
        frame->color_trc = avctx->color_trc;
1742
441737
    if (frame->colorspace == AVCOL_SPC_UNSPECIFIED)
1743
441302
        frame->colorspace = avctx->colorspace;
1744
441737
    if (frame->color_range == AVCOL_RANGE_UNSPECIFIED)
1745
441519
        frame->color_range = avctx->color_range;
1746
441737
    if (frame->chroma_location == AVCHROMA_LOC_UNSPECIFIED)
1747
441737
        frame->chroma_location = avctx->chroma_sample_location;
1748
1749
441737
    switch (avctx->codec->type) {
1750
119044
    case AVMEDIA_TYPE_VIDEO:
1751
119044
        frame->format              = avctx->pix_fmt;
1752
119044
        if (!frame->sample_aspect_ratio.num)
1753
118925
            frame->sample_aspect_ratio = avctx->sample_aspect_ratio;
1754
1755

216701
        if (frame->width && frame->height &&
1756
97657
            av_image_check_sar(frame->width, frame->height,
1757
                               frame->sample_aspect_ratio) < 0) {
1758
            av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %u/%u\n",
1759
                   frame->sample_aspect_ratio.num,
1760
                   frame->sample_aspect_ratio.den);
1761
            frame->sample_aspect_ratio = (AVRational){ 0, 1 };
1762
        }
1763
1764
119044
        break;
1765
322693
    case AVMEDIA_TYPE_AUDIO:
1766
322693
        if (!frame->sample_rate)
1767
322693
            frame->sample_rate    = avctx->sample_rate;
1768
322693
        if (frame->format < 0)
1769
322693
            frame->format         = avctx->sample_fmt;
1770
322693
        if (!frame->channel_layout) {
1771
322693
            if (avctx->channel_layout) {
1772
321377
                 if (av_get_channel_layout_nb_channels(avctx->channel_layout) !=
1773
321377
                     avctx->channels) {
1774
                     av_log(avctx, AV_LOG_ERROR, "Inconsistent channel "
1775
                            "configuration.\n");
1776
                     return AVERROR(EINVAL);
1777
                 }
1778
1779
321377
                frame->channel_layout = avctx->channel_layout;
1780
            } else {
1781
1316
                if (avctx->channels > FF_SANE_NB_CHANNELS) {
1782
                    av_log(avctx, AV_LOG_ERROR, "Too many channels: %d.\n",
1783
                           avctx->channels);
1784
                    return AVERROR(ENOSYS);
1785
                }
1786
            }
1787
        }
1788
322693
        frame->channels = avctx->channels;
1789
322693
        break;
1790
    }
1791
441737
    return 0;
1792
}
1793
1794
415029
static void validate_avframe_allocation(AVCodecContext *avctx, AVFrame *frame)
1795
{
1796
415029
    if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
1797
        int i;
1798
92336
        int num_planes = av_pix_fmt_count_planes(frame->format);
1799
92336
        const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format);
1800
92336
        int flags = desc ? desc->flags : 0;
1801

92336
        if (num_planes == 1 && (flags & AV_PIX_FMT_FLAG_PAL))
1802
2127
            num_planes = 2;
1803

92336
        if ((flags & FF_PSEUDOPAL) && frame->data[1])
1804
276
            num_planes = 2;
1805
356970
        for (i = 0; i < num_planes; i++) {
1806
264634
            av_assert0(frame->data[i]);
1807
        }
1808
        // For formats without data like hwaccel allow unused pointers to be non-NULL.
1809

566390
        for (i = num_planes; num_planes > 0 && i < FF_ARRAY_ELEMS(frame->data); i++) {
1810
474054
            if (frame->data[i])
1811
                av_log(avctx, AV_LOG_ERROR, "Buffer returned by get_buffer2() did not zero unused plane pointers\n");
1812
474054
            frame->data[i] = NULL;
1813
        }
1814
    }
1815
415029
}
1816
1817
415029
static void decode_data_free(void *opaque, uint8_t *data)
1818
{
1819
415029
    FrameDecodeData *fdd = (FrameDecodeData*)data;
1820
1821
415029
    if (fdd->post_process_opaque_free)
1822
        fdd->post_process_opaque_free(fdd->post_process_opaque);
1823
1824
415029
    if (fdd->hwaccel_priv_free)
1825
        fdd->hwaccel_priv_free(fdd->hwaccel_priv);
1826
1827
415029
    av_freep(&fdd);
1828
415029
}
1829
1830
415029
int ff_attach_decode_data(AVFrame *frame)
1831
{
1832
    AVBufferRef *fdd_buf;
1833
    FrameDecodeData *fdd;
1834
1835
    av_assert1(!frame->private_ref);
1836
415029
    av_buffer_unref(&frame->private_ref);
1837
1838
415029
    fdd = av_mallocz(sizeof(*fdd));
1839
415029
    if (!fdd)
1840
        return AVERROR(ENOMEM);
1841
1842
415029
    fdd_buf = av_buffer_create((uint8_t*)fdd, sizeof(*fdd), decode_data_free,
1843
                               NULL, AV_BUFFER_FLAG_READONLY);
1844
415029
    if (!fdd_buf) {
1845
        av_freep(&fdd);
1846
        return AVERROR(ENOMEM);
1847
    }
1848
1849
415029
    frame->private_ref = fdd_buf;
1850
1851
415029
    return 0;
1852
}
1853
1854
415029
int ff_get_buffer(AVCodecContext *avctx, AVFrame *frame, int flags)
1855
{
1856
415029
    const AVHWAccel *hwaccel = avctx->hwaccel;
1857
415029
    int override_dimensions = 1;
1858
    int ret;
1859
1860
415029
    if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
1861

92336
        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) {
1862
            av_log(avctx, AV_LOG_ERROR, "video_get_buffer: image parameters invalid\n");
1863
            ret = AVERROR(EINVAL);
1864
            goto fail;
1865
        }
1866
1867

92336
        if (frame->width <= 0 || frame->height <= 0) {
1868
82728
            frame->width  = FFMAX(avctx->width,  AV_CEIL_RSHIFT(avctx->coded_width,  avctx->lowres));
1869
82728
            frame->height = FFMAX(avctx->height, AV_CEIL_RSHIFT(avctx->coded_height, avctx->lowres));
1870
82728
            override_dimensions = 0;
1871
        }
1872
1873


92336
        if (frame->data[0] || frame->data[1] || frame->data[2] || frame->data[3]) {
1874
            av_log(avctx, AV_LOG_ERROR, "pic->data[*]!=NULL in get_buffer_internal\n");
1875
            ret = AVERROR(EINVAL);
1876
            goto fail;
1877
        }
1878
322693
    } else if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
1879
322693
        if (frame->nb_samples * (int64_t)avctx->channels > avctx->max_samples) {
1880
            av_log(avctx, AV_LOG_ERROR, "samples per frame %d, exceeds max_samples %"PRId64"\n", frame->nb_samples, avctx->max_samples);
1881
            ret = AVERROR(EINVAL);
1882
            goto fail;
1883
        }
1884
    }
1885
415029
    ret = ff_decode_frame_props(avctx, frame);
1886
415029
    if (ret < 0)
1887
        goto fail;
1888
1889
415029
    if (hwaccel) {
1890
        if (hwaccel->alloc_frame) {
1891
            ret = hwaccel->alloc_frame(avctx, frame);
1892
            goto end;
1893
        }
1894
    } else
1895
415029
        avctx->sw_pix_fmt = avctx->pix_fmt;
1896
1897
415029
    ret = avctx->get_buffer2(avctx, frame, flags);
1898
415029
    if (ret < 0)
1899
        goto fail;
1900
1901
415029
    validate_avframe_allocation(avctx, frame);
1902
1903
415029
    ret = ff_attach_decode_data(frame);
1904
415029
    if (ret < 0)
1905
        goto fail;
1906
1907
415029
end:
1908

415029
    if (avctx->codec_type == AVMEDIA_TYPE_VIDEO && !override_dimensions &&
1909
82728
        !(avctx->codec->caps_internal & FF_CODEC_CAP_EXPORTS_CROPPING)) {
1910
49834
        frame->width  = avctx->width;
1911
49834
        frame->height = avctx->height;
1912
    }
1913
1914
365195
fail:
1915
415029
    if (ret < 0) {
1916
        av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
1917
        av_frame_unref(frame);
1918
    }
1919
1920
415029
    return ret;
1921
}
1922
1923
6868
static int reget_buffer_internal(AVCodecContext *avctx, AVFrame *frame, int flags)
1924
{
1925
    AVFrame *tmp;
1926
    int ret;
1927
1928
6868
    av_assert0(avctx->codec_type == AVMEDIA_TYPE_VIDEO);
1929
1930


6868
    if (frame->data[0] && (frame->width != avctx->width || frame->height != avctx->height || frame->format != avctx->pix_fmt)) {
1931
        av_log(avctx, AV_LOG_WARNING, "Picture changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s in reget buffer()\n",
1932
               frame->width, frame->height, av_get_pix_fmt_name(frame->format), avctx->width, avctx->height, av_get_pix_fmt_name(avctx->pix_fmt));
1933
        av_frame_unref(frame);
1934
    }
1935
1936
6868
    if (!frame->data[0])
1937
120
        return ff_get_buffer(avctx, frame, AV_GET_BUFFER_FLAG_REF);
1938
1939

6748
    if ((flags & FF_REGET_BUFFER_FLAG_READONLY) || av_frame_is_writable(frame))
1940
5212
        return ff_decode_frame_props(avctx, frame);
1941
1942
1536
    tmp = av_frame_alloc();
1943
1536
    if (!tmp)
1944
        return AVERROR(ENOMEM);
1945
1946
1536
    av_frame_move_ref(tmp, frame);
1947
1948
1536
    ret = ff_get_buffer(avctx, frame, AV_GET_BUFFER_FLAG_REF);
1949
1536
    if (ret < 0) {
1950
        av_frame_free(&tmp);
1951
        return ret;
1952
    }
1953
1954
1536
    av_frame_copy(frame, tmp);
1955
1536
    av_frame_free(&tmp);
1956
1957
1536
    return 0;
1958
}
1959
1960
6868
int ff_reget_buffer(AVCodecContext *avctx, AVFrame *frame, int flags)
1961
{
1962
6868
    int ret = reget_buffer_internal(avctx, frame, flags);
1963
6868
    if (ret < 0)
1964
        av_log(avctx, AV_LOG_ERROR, "reget_buffer() failed\n");
1965
6868
    return ret;
1966
}