FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/fftools/ffmpeg_dec.c
Date: 2025-06-23 20:06:14
Exec Total Coverage
Lines: 661 945 69.9%
Functions: 31 32 96.9%
Branches: 381 613 62.2%
Line Branch Exec Source
1 /*
2 * This file is part of FFmpeg.
3 *
4 * FFmpeg is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
8 *
9 * FFmpeg is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
13 *
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with FFmpeg; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17 */
18
19 #include <stdbit.h>
20
21 #include "libavutil/avassert.h"
22 #include "libavutil/avstring.h"
23 #include "libavutil/dict.h"
24 #include "libavutil/error.h"
25 #include "libavutil/log.h"
26 #include "libavutil/mem.h"
27 #include "libavutil/opt.h"
28 #include "libavutil/pixdesc.h"
29 #include "libavutil/pixfmt.h"
30 #include "libavutil/stereo3d.h"
31 #include "libavutil/time.h"
32 #include "libavutil/timestamp.h"
33
34 #include "libavcodec/avcodec.h"
35 #include "libavcodec/codec.h"
36
37 #include "ffmpeg.h"
38
39 typedef struct DecoderPriv {
40 Decoder dec;
41
42 AVCodecContext *dec_ctx;
43
44 AVFrame *frame;
45 AVFrame *frame_tmp_ref;
46 AVPacket *pkt;
47
48 // override output video sample aspect ratio with this value
49 AVRational sar_override;
50
51 AVRational framerate_in;
52
53 // a combination of DECODER_FLAG_*, provided to dec_open()
54 int flags;
55 int apply_cropping;
56
57 enum AVPixelFormat hwaccel_pix_fmt;
58 enum HWAccelID hwaccel_id;
59 enum AVHWDeviceType hwaccel_device_type;
60 enum AVPixelFormat hwaccel_output_format;
61
62 // pts/estimated duration of the last decoded frame
63 // * in decoder timebase for video,
64 // * in last_frame_tb (may change during decoding) for audio
65 int64_t last_frame_pts;
66 int64_t last_frame_duration_est;
67 AVRational last_frame_tb;
68 int64_t last_filter_in_rescale_delta;
69 int last_frame_sample_rate;
70
71 /* previous decoded subtitles */
72 AVFrame *sub_prev[2];
73 AVFrame *sub_heartbeat;
74
75 Scheduler *sch;
76 unsigned sch_idx;
77
78 // this decoder's index in decoders or -1
79 int index;
80 void *log_parent;
81 char log_name[32];
82 char *parent_name;
83
84 // user specified decoder multiview options manually
85 int multiview_user_config;
86
87 struct {
88 ViewSpecifier vs;
89 unsigned out_idx;
90 } *views_requested;
91 int nb_views_requested;
92
93 /* A map of view ID to decoder outputs.
94 * MUST NOT be accessed outside of get_format()/get_buffer() */
95 struct {
96 unsigned id;
97 uintptr_t out_mask;
98 } *view_map;
99 int nb_view_map;
100
101 struct {
102 AVDictionary *opts;
103 const AVCodec *codec;
104 } standalone_init;
105 } DecoderPriv;
106
107 12349 static DecoderPriv *dp_from_dec(Decoder *d)
108 {
109 12349 return (DecoderPriv*)d;
110 }
111
112 // data that is local to the decoder thread and not visible outside of it
113 typedef struct DecThreadContext {
114 AVFrame *frame;
115 AVPacket *pkt;
116 } DecThreadContext;
117
118 7775 void dec_free(Decoder **pdec)
119 {
120 7775 Decoder *dec = *pdec;
121 DecoderPriv *dp;
122
123
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 7775 if (!dec)
124 982 return;
125 6793 dp = dp_from_dec(dec);
126
127 6793 avcodec_free_context(&dp->dec_ctx);
128
129 6793 av_frame_free(&dp->frame);
130 6793 av_frame_free(&dp->frame_tmp_ref);
131 6793 av_packet_free(&dp->pkt);
132
133 6793 av_dict_free(&dp->standalone_init.opts);
134
135
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 20379 for (int i = 0; i < FF_ARRAY_ELEMS(dp->sub_prev); i++)
136 13586 av_frame_free(&dp->sub_prev[i]);
137 6793 av_frame_free(&dp->sub_heartbeat);
138
139 6793 av_freep(&dp->parent_name);
140
141 6793 av_freep(&dp->views_requested);
142 6793 av_freep(&dp->view_map);
143
144 6793 av_freep(pdec);
145 }
146
147 587 static const char *dec_item_name(void *obj)
148 {
149 587 const DecoderPriv *dp = obj;
150
151 587 return dp->log_name;
152 }
153
154 static const AVClass dec_class = {
155 .class_name = "Decoder",
156 .version = LIBAVUTIL_VERSION_INT,
157 .parent_log_context_offset = offsetof(DecoderPriv, log_parent),
158 .item_name = dec_item_name,
159 };
160
161 static int decoder_thread(void *arg);
162
163 6793 static int dec_alloc(DecoderPriv **pdec, Scheduler *sch, int send_end_ts)
164 {
165 DecoderPriv *dp;
166 6793 int ret = 0;
167
168 6793 *pdec = NULL;
169
170 6793 dp = av_mallocz(sizeof(*dp));
171
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 6793 if (!dp)
172 ✗ return AVERROR(ENOMEM);
173
174 6793 dp->frame = av_frame_alloc();
175
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 6793 if (!dp->frame)
176 ✗ goto fail;
177
178 6793 dp->pkt = av_packet_alloc();
179
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 6793 if (!dp->pkt)
180 ✗ goto fail;
181
182 6793 dp->index = -1;
183 6793 dp->dec.class = &dec_class;
184 6793 dp->last_filter_in_rescale_delta = AV_NOPTS_VALUE;
185 6793 dp->last_frame_pts = AV_NOPTS_VALUE;
186 6793 dp->last_frame_tb = (AVRational){ 1, 1 };
187 6793 dp->hwaccel_pix_fmt = AV_PIX_FMT_NONE;
188
189 6793 ret = sch_add_dec(sch, decoder_thread, dp, send_end_ts);
190
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 6793 if (ret < 0)
191 ✗ goto fail;
192 6793 dp->sch = sch;
193 6793 dp->sch_idx = ret;
194
195 6793 *pdec = dp;
196
197 6793 return 0;
198 ✗ fail:
199 ✗ dec_free((Decoder**)&dp);
200 ✗ return ret >= 0 ? AVERROR(ENOMEM) : ret;
201 }
202
203 254249 static AVRational audio_samplerate_update(DecoderPriv *dp,
204 const AVFrame *frame)
205 {
206 254249 const int prev = dp->last_frame_tb.den;
207 254249 const int sr = frame->sample_rate;
208
209 AVRational tb_new;
210 int64_t gcd;
211
212
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 254249 if (frame->sample_rate == dp->last_frame_sample_rate)
213 253044 goto finish;
214
215 1205 gcd = av_gcd(prev, sr);
216
217
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 1205 if (prev / gcd >= INT_MAX / sr) {
218 ✗ av_log(dp, AV_LOG_WARNING,
219 "Audio timestamps cannot be represented exactly after "
220 "sample rate change: %d -> %d\n", prev, sr);
221
222 // LCM of 192000, 44100, allows to represent all common samplerates
223 ✗ tb_new = (AVRational){ 1, 28224000 };
224 } else
225 1205 tb_new = (AVRational){ 1, prev / gcd * sr };
226
227 // keep the frame timebase if it is strictly better than
228 // the samplerate-defined one
229
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 1205 if (frame->time_base.num == 1 && frame->time_base.den > tb_new.den &&
230
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 105 !(frame->time_base.den % tb_new.den))
231 40 tb_new = frame->time_base;
232
233
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 1205 if (dp->last_frame_pts != AV_NOPTS_VALUE)
234 ✗ dp->last_frame_pts = av_rescale_q(dp->last_frame_pts,
235 dp->last_frame_tb, tb_new);
236 1205 dp->last_frame_duration_est = av_rescale_q(dp->last_frame_duration_est,
237 dp->last_frame_tb, tb_new);
238
239 1205 dp->last_frame_tb = tb_new;
240 1205 dp->last_frame_sample_rate = frame->sample_rate;
241
242 254249 finish:
243 254249 return dp->last_frame_tb;
244 }
245
246 254249 static void audio_ts_process(DecoderPriv *dp, AVFrame *frame)
247 {
248 254249 AVRational tb_filter = (AVRational){1, frame->sample_rate};
249 AVRational tb;
250 int64_t pts_pred;
251
252 // on samplerate change, choose a new internal timebase for timestamp
253 // generation that can represent timestamps from all the samplerates
254 // seen so far
255 254249 tb = audio_samplerate_update(dp, frame);
256
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 254249 pts_pred = dp->last_frame_pts == AV_NOPTS_VALUE ? 0 :
257 253044 dp->last_frame_pts + dp->last_frame_duration_est;
258
259
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 254249 if (frame->pts == AV_NOPTS_VALUE) {
260 50348 frame->pts = pts_pred;
261 50348 frame->time_base = tb;
262
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 203901 } else if (dp->last_frame_pts != AV_NOPTS_VALUE &&
263
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 202709 frame->pts > av_rescale_q_rnd(pts_pred, tb, frame->time_base,
264 AV_ROUND_UP)) {
265 // there was a gap in timestamps, reset conversion state
266 611 dp->last_filter_in_rescale_delta = AV_NOPTS_VALUE;
267 }
268
269 254249 frame->pts = av_rescale_delta(frame->time_base, frame->pts,
270 tb, frame->nb_samples,
271 &dp->last_filter_in_rescale_delta, tb);
272
273 254249 dp->last_frame_pts = frame->pts;
274 254249 dp->last_frame_duration_est = av_rescale_q(frame->nb_samples,
275 tb_filter, tb);
276
277 // finally convert to filtering timebase
278 254249 frame->pts = av_rescale_q(frame->pts, tb, tb_filter);
279 254249 frame->duration = frame->nb_samples;
280 254249 frame->time_base = tb_filter;
281 254249 }
282
283 138370 static int64_t video_duration_estimate(const DecoderPriv *dp, const AVFrame *frame)
284 {
285 138370 const int ts_unreliable = dp->flags & DECODER_FLAG_TS_UNRELIABLE;
286 138370 const int fr_forced = dp->flags & DECODER_FLAG_FRAMERATE_FORCED;
287 138370 int64_t codec_duration = 0;
288 // difference between this and last frame's timestamps
289 138370 const int64_t ts_diff =
290
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 138370 (frame->pts != AV_NOPTS_VALUE && dp->last_frame_pts != AV_NOPTS_VALUE) ?
291
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 276740 frame->pts - dp->last_frame_pts : -1;
292
293 // XXX lavf currently makes up frame durations when they are not provided by
294 // the container. As there is no way to reliably distinguish real container
295 // durations from the fake made-up ones, we use heuristics based on whether
296 // the container has timestamps. Eventually lavf should stop making up
297 // durations, then this should be simplified.
298
299 // frame duration is unreliable (typically guessed by lavf) when it is equal
300 // to 1 and the actual duration of the last frame is more than 2x larger
301
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 138370 const int duration_unreliable = frame->duration == 1 && ts_diff > 2 * frame->duration;
302
303 // prefer frame duration for containers with timestamps
304
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 138370 if (fr_forced ||
305
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 137975 (frame->duration > 0 && !ts_unreliable && !duration_unreliable))
306 102353 return frame->duration;
307
308
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 36017 if (dp->dec_ctx->framerate.den && dp->dec_ctx->framerate.num) {
309 5412 int fields = frame->repeat_pict + 2;
310 5412 AVRational field_rate = av_mul_q(dp->dec_ctx->framerate,
311 5412 (AVRational){ 2, 1 });
312 5412 codec_duration = av_rescale_q(fields, av_inv_q(field_rate),
313 frame->time_base);
314 }
315
316 // prefer codec-layer duration for containers without timestamps
317
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 36017 if (codec_duration > 0 && ts_unreliable)
318 5393 return codec_duration;
319
320 // when timestamps are available, repeat last frame's actual duration
321 // (i.e. pts difference between this and last frame)
322
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 30624 if (ts_diff > 0)
323 30103 return ts_diff;
324
325 // try frame/codec duration
326
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 521 if (frame->duration > 0)
327 452 return frame->duration;
328
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 69 if (codec_duration > 0)
329 ✗ return codec_duration;
330
331 // try average framerate
332
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 69 if (dp->framerate_in.num && dp->framerate_in.den) {
333 43 int64_t d = av_rescale_q(1, av_inv_q(dp->framerate_in),
334 frame->time_base);
335
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 43 if (d > 0)
336 43 return d;
337 }
338
339 // last resort is last frame's estimated duration, and 1
340 26 return FFMAX(dp->last_frame_duration_est, 1);
341 }
342
343 ✗ static int hwaccel_retrieve_data(AVCodecContext *avctx, AVFrame *input)
344 {
345 ✗ DecoderPriv *dp = avctx->opaque;
346 ✗ AVFrame *output = NULL;
347 ✗ enum AVPixelFormat output_format = dp->hwaccel_output_format;
348 int err;
349
350 ✗ if (input->format == output_format) {
351 // Nothing to do.
352 ✗ return 0;
353 }
354
355 ✗ output = av_frame_alloc();
356 ✗ if (!output)
357 ✗ return AVERROR(ENOMEM);
358
359 ✗ output->format = output_format;
360
361 ✗ err = av_hwframe_transfer_data(output, input, 0);
362 ✗ if (err < 0) {
363 ✗ av_log(avctx, AV_LOG_ERROR, "Failed to transfer data to "
364 "output frame: %d.\n", err);
365 ✗ goto fail;
366 }
367
368 ✗ err = av_frame_copy_props(output, input);
369 ✗ if (err < 0) {
370 ✗ av_frame_unref(output);
371 ✗ goto fail;
372 }
373
374 ✗ av_frame_unref(input);
375 ✗ av_frame_move_ref(input, output);
376 ✗ av_frame_free(&output);
377
378 ✗ return 0;
379
380 ✗ fail:
381 ✗ av_frame_free(&output);
382 ✗ return err;
383 }
384
385 138370 static int video_frame_process(DecoderPriv *dp, AVFrame *frame,
386 unsigned *outputs_mask)
387 {
388 #if FFMPEG_OPT_TOP
389
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 138370 if (dp->flags & DECODER_FLAG_TOP_FIELD_FIRST) {
390 ✗ av_log(dp, AV_LOG_WARNING, "-top is deprecated, use the setfield filter instead\n");
391 ✗ frame->flags |= AV_FRAME_FLAG_TOP_FIELD_FIRST;
392 }
393 #endif
394
395
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 138370 if (frame->format == dp->hwaccel_pix_fmt) {
396 ✗ int err = hwaccel_retrieve_data(dp->dec_ctx, frame);
397 ✗ if (err < 0)
398 ✗ return err;
399 }
400
401 138370 frame->pts = frame->best_effort_timestamp;
402
403 // forced fixed framerate
404
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 138370 if (dp->flags & DECODER_FLAG_FRAMERATE_FORCED) {
405 395 frame->pts = AV_NOPTS_VALUE;
406 395 frame->duration = 1;
407 395 frame->time_base = av_inv_q(dp->framerate_in);
408 }
409
410 // no timestamp available - extrapolate from previous frame duration
411
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 138370 if (frame->pts == AV_NOPTS_VALUE)
412
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 67900 frame->pts = dp->last_frame_pts == AV_NOPTS_VALUE ? 0 :
413 33667 dp->last_frame_pts + dp->last_frame_duration_est;
414
415 // update timestamp history
416 138370 dp->last_frame_duration_est = video_duration_estimate(dp, frame);
417 138370 dp->last_frame_pts = frame->pts;
418 138370 dp->last_frame_tb = frame->time_base;
419
420
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 138370 if (debug_ts) {
421 ✗ av_log(dp, AV_LOG_INFO,
422 "decoder -> pts:%s pts_time:%s "
423 "pkt_dts:%s pkt_dts_time:%s "
424 "duration:%s duration_time:%s "
425 "keyframe:%d frame_type:%d time_base:%d/%d\n",
426 ✗ av_ts2str(frame->pts),
427 ✗ av_ts2timestr(frame->pts, &frame->time_base),
428 ✗ av_ts2str(frame->pkt_dts),
429 ✗ av_ts2timestr(frame->pkt_dts, &frame->time_base),
430 ✗ av_ts2str(frame->duration),
431 ✗ av_ts2timestr(frame->duration, &frame->time_base),
432 ✗ !!(frame->flags & AV_FRAME_FLAG_KEY), frame->pict_type,
433 frame->time_base.num, frame->time_base.den);
434 }
435
436
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 138370 if (dp->sar_override.num)
437 13629 frame->sample_aspect_ratio = dp->sar_override;
438
439
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 138370 if (dp->apply_cropping) {
440 // lavfi does not require aligned frame data
441 138369 int ret = av_frame_apply_cropping(frame, AV_FRAME_CROP_UNALIGNED);
442
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 138369 if (ret < 0) {
443 ✗ av_log(dp, AV_LOG_ERROR, "Error applying decoder cropping\n");
444 ✗ return ret;
445 }
446 }
447
448
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 138370 if (frame->opaque)
449 610 *outputs_mask = (uintptr_t)frame->opaque;
450
451 138370 return 0;
452 }
453
454 1 static int copy_av_subtitle(AVSubtitle *dst, const AVSubtitle *src)
455 {
456 1 int ret = AVERROR_BUG;
457 1 AVSubtitle tmp = {
458 1 .format = src->format,
459 1 .start_display_time = src->start_display_time,
460 1 .end_display_time = src->end_display_time,
461 .num_rects = 0,
462 .rects = NULL,
463 1 .pts = src->pts
464 };
465
466
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 1 if (!src->num_rects)
467 ✗ goto success;
468
469
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 1 if (!(tmp.rects = av_calloc(src->num_rects, sizeof(*tmp.rects))))
470 ✗ return AVERROR(ENOMEM);
471
472
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 2 for (int i = 0; i < src->num_rects; i++) {
473 1 AVSubtitleRect *src_rect = src->rects[i];
474 AVSubtitleRect *dst_rect;
475
476
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 1 if (!(dst_rect = tmp.rects[i] = av_mallocz(sizeof(*tmp.rects[0])))) {
477 ✗ ret = AVERROR(ENOMEM);
478 ✗ goto cleanup;
479 }
480
481 1 tmp.num_rects++;
482
483 1 dst_rect->type = src_rect->type;
484 1 dst_rect->flags = src_rect->flags;
485
486 1 dst_rect->x = src_rect->x;
487 1 dst_rect->y = src_rect->y;
488 1 dst_rect->w = src_rect->w;
489 1 dst_rect->h = src_rect->h;
490 1 dst_rect->nb_colors = src_rect->nb_colors;
491
492
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 1 if (src_rect->text)
493 ✗ if (!(dst_rect->text = av_strdup(src_rect->text))) {
494 ✗ ret = AVERROR(ENOMEM);
495 ✗ goto cleanup;
496 }
497
498
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 1 if (src_rect->ass)
499
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 1 if (!(dst_rect->ass = av_strdup(src_rect->ass))) {
500 ✗ ret = AVERROR(ENOMEM);
501 ✗ goto cleanup;
502 }
503
504
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 5 for (int j = 0; j < 4; j++) {
505 // SUBTITLE_BITMAP images are special in the sense that they
506 // are like PAL8 images. first pointer to data, second to
507 // palette. This makes the size calculation match this.
508 ✗ size_t buf_size = src_rect->type == SUBTITLE_BITMAP && j == 1 ?
509
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 4 AVPALETTE_SIZE :
510 4 src_rect->h * src_rect->linesize[j];
511
512
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 4 if (!src_rect->data[j])
513 4 continue;
514
515 ✗ if (!(dst_rect->data[j] = av_memdup(src_rect->data[j], buf_size))) {
516 ✗ ret = AVERROR(ENOMEM);
517 ✗ goto cleanup;
518 }
519 ✗ dst_rect->linesize[j] = src_rect->linesize[j];
520 }
521 }
522
523 1 success:
524 1 *dst = tmp;
525
526 1 return 0;
527
528 ✗ cleanup:
529 ✗ avsubtitle_free(&tmp);
530
531 ✗ return ret;
532 }
533
534 834 static void subtitle_free(void *opaque, uint8_t *data)
535 {
536 834 AVSubtitle *sub = (AVSubtitle*)data;
537 834 avsubtitle_free(sub);
538 834 av_free(sub);
539 834 }
540
541 834 static int subtitle_wrap_frame(AVFrame *frame, AVSubtitle *subtitle, int copy)
542 {
543 AVBufferRef *buf;
544 AVSubtitle *sub;
545 int ret;
546
547
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 834 if (copy) {
548 1 sub = av_mallocz(sizeof(*sub));
549
1/2
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 1 ret = sub ? copy_av_subtitle(sub, subtitle) : AVERROR(ENOMEM);
550
1/2
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 1 if (ret < 0) {
551 ✗ av_freep(&sub);
552 ✗ return ret;
553 }
554 } else {
555 833 sub = av_memdup(subtitle, sizeof(*subtitle));
556
1/2
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 833 if (!sub)
557 ✗ return AVERROR(ENOMEM);
558 833 memset(subtitle, 0, sizeof(*subtitle));
559 }
560
561 834 buf = av_buffer_create((uint8_t*)sub, sizeof(*sub),
562 subtitle_free, NULL, 0);
563
1/2
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 834 if (!buf) {
564 ✗ avsubtitle_free(sub);
565 ✗ av_freep(&sub);
566 ✗ return AVERROR(ENOMEM);
567 }
568
569 834 frame->buf[0] = buf;
570
571 834 return 0;
572 }
573
574 834 static int process_subtitle(DecoderPriv *dp, AVFrame *frame)
575 {
576 834 const AVSubtitle *subtitle = (AVSubtitle*)frame->buf[0]->data;
577 834 int ret = 0;
578
579
2/2
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 834 if (dp->flags & DECODER_FLAG_FIX_SUB_DURATION) {
580 34 AVSubtitle *sub_prev = dp->sub_prev[0]->buf[0] ?
581
2/2
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 17 (AVSubtitle*)dp->sub_prev[0]->buf[0]->data : NULL;
582 17 int end = 1;
583
2/2
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 17 if (sub_prev) {
584 15 end = av_rescale(subtitle->pts - sub_prev->pts,
585 1000, AV_TIME_BASE);
586
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 15 if (end < sub_prev->end_display_time) {
587
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 15 av_log(dp, AV_LOG_DEBUG,
588 "Subtitle duration reduced from %"PRId32" to %d%s\n",
589 sub_prev->end_display_time, end,
590 end <= 0 ? ", dropping it" : "");
591 15 sub_prev->end_display_time = end;
592 }
593 }
594
595 17 av_frame_unref(dp->sub_prev[1]);
596 17 av_frame_move_ref(dp->sub_prev[1], frame);
597
598 17 frame = dp->sub_prev[0];
599
2/2
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 17 subtitle = frame->buf[0] ? (AVSubtitle*)frame->buf[0]->data : NULL;
600
601 17 FFSWAP(AVFrame*, dp->sub_prev[0], dp->sub_prev[1]);
602
603
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 17 if (end <= 0)
604 ✗ return 0;
605 }
606
607
2/2
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 834 if (!subtitle)
608 2 return 0;
609
610 832 ret = sch_dec_send(dp->sch, dp->sch_idx, 0, frame);
611
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 832 if (ret < 0)
612 ✗ av_frame_unref(frame);
613
614
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 832 return ret == AVERROR_EOF ? AVERROR_EXIT : ret;
615 }
616
617 4 static int fix_sub_duration_heartbeat(DecoderPriv *dp, int64_t signal_pts)
618 {
619 4 int ret = AVERROR_BUG;
620 8 AVSubtitle *prev_subtitle = dp->sub_prev[0]->buf[0] ?
621
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 4 (AVSubtitle*)dp->sub_prev[0]->buf[0]->data : NULL;
622 AVSubtitle *subtitle;
623
624
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 4 if (!(dp->flags & DECODER_FLAG_FIX_SUB_DURATION) || !prev_subtitle ||
625
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 3 !prev_subtitle->num_rects || signal_pts <= prev_subtitle->pts)
626 3 return 0;
627
628 1 av_frame_unref(dp->sub_heartbeat);
629 1 ret = subtitle_wrap_frame(dp->sub_heartbeat, prev_subtitle, 1);
630
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 1 if (ret < 0)
631 ✗ return ret;
632
633 1 subtitle = (AVSubtitle*)dp->sub_heartbeat->buf[0]->data;
634 1 subtitle->pts = signal_pts;
635
636 1 return process_subtitle(dp, dp->sub_heartbeat);
637 }
638
639 2654 static int transcode_subtitles(DecoderPriv *dp, const AVPacket *pkt,
640 AVFrame *frame)
641 {
642 2654 AVPacket *flush_pkt = NULL;
643 AVSubtitle subtitle;
644 int got_output;
645 int ret;
646
647
4/4
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 2654 if (pkt && (intptr_t)pkt->opaque == PKT_OPAQUE_SUB_HEARTBEAT) {
648 948 frame->pts = pkt->pts;
649 948 frame->time_base = pkt->time_base;
650 948 frame->opaque = (void*)(intptr_t)FRAME_OPAQUE_SUB_HEARTBEAT;
651
652 948 ret = sch_dec_send(dp->sch, dp->sch_idx, 0, frame);
653
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 948 return ret == AVERROR_EOF ? AVERROR_EXIT : ret;
654
4/4
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✓ Branch 3 taken 1662 times.
 1706 } else if (pkt && (intptr_t)pkt->opaque == PKT_OPAQUE_FIX_SUB_DURATION) {
655 4 return fix_sub_duration_heartbeat(dp, av_rescale_q(pkt->pts, pkt->time_base,
656 4 AV_TIME_BASE_Q));
657 }
658
659
2/2
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 1702 if (!pkt) {
660 40 flush_pkt = av_packet_alloc();
661
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 40 if (!flush_pkt)
662 ✗ return AVERROR(ENOMEM);
663 }
664
665
2/2
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 1702 ret = avcodec_decode_subtitle2(dp->dec_ctx, &subtitle, &got_output,
666 pkt ? pkt : flush_pkt);
667 1702 av_packet_free(&flush_pkt);
668
669
2/2
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✓ Branch 1 taken 1623 times.
 1702 if (ret < 0) {
670 79 av_log(dp, AV_LOG_ERROR, "Error decoding subtitles: %s\n",
671 79 av_err2str(ret));
672 79 dp->dec.decode_errors++;
673
1/2
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 79 return exit_on_error ? ret : 0;
674 }
675
676
2/2
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✓ Branch 1 taken 833 times.
 1623 if (!got_output)
677
2/2
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✓ Branch 1 taken 40 times.
 790 return pkt ? 0 : AVERROR_EOF;
678
679 833 dp->dec.frames_decoded++;
680
681 // XXX the queue for transferring data to consumers runs
682 // on AVFrames, so we wrap AVSubtitle in an AVBufferRef and put that
683 // inside the frame
684 // eventually, subtitles should be switched to use AVFrames natively
685 833 ret = subtitle_wrap_frame(frame, &subtitle, 0);
686
1/2
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✓ Branch 1 taken 833 times.
 833 if (ret < 0) {
687 ✗ avsubtitle_free(&subtitle);
688 ✗ return ret;
689 }
690
691 833 frame->width = dp->dec_ctx->width;
692 833 frame->height = dp->dec_ctx->height;
693
694 833 return process_subtitle(dp, frame);
695 }
696
697 376388 static int packet_decode(DecoderPriv *dp, AVPacket *pkt, AVFrame *frame)
698 {
699 376388 AVCodecContext *dec = dp->dec_ctx;
700 376388 const char *type_desc = av_get_media_type_string(dec->codec_type);
701 int ret;
702
703
2/2
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✓ Branch 1 taken 373734 times.
 376388 if (dec->codec_type == AVMEDIA_TYPE_SUBTITLE)
704 2654 return transcode_subtitles(dp, pkt, frame);
705
706 // With fate-indeo3-2, we're getting 0-sized packets before EOF for some
707 // reason. This seems like a semi-critical bug. Don't trigger EOF, and
708 // skip the packet.
709
4/4
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✓ Branch 2 taken 1480 times.
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 373734 if (pkt && pkt->size == 0)
710 1480 return 0;
711
712
4/4
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✓ Branch 2 taken 58640 times.
✓ Branch 3 taken 310304 times.
 372254 if (pkt && (dp->flags & DECODER_FLAG_TS_UNRELIABLE)) {
713 58640 pkt->pts = AV_NOPTS_VALUE;
714 58640 pkt->dts = AV_NOPTS_VALUE;
715 }
716
717
2/2
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✓ Branch 1 taken 3310 times.
 372254 if (pkt) {
718 368944 FrameData *fd = packet_data(pkt);
719
1/2
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✓ Branch 1 taken 368944 times.
 368944 if (!fd)
720 ✗ return AVERROR(ENOMEM);
721 368944 fd->wallclock[LATENCY_PROBE_DEC_PRE] = av_gettime_relative();
722 }
723
724 372254 ret = avcodec_send_packet(dec, pkt);
725
3/6
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 372254 if (ret < 0 && !(ret == AVERROR_EOF && !pkt)) {
726 // In particular, we don't expect AVERROR(EAGAIN), because we read all
727 // decoded frames with avcodec_receive_frame() until done.
728
1/2
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✓ Branch 1 taken 415 times.
 415 if (ret == AVERROR(EAGAIN)) {
729 ✗ av_log(dp, AV_LOG_FATAL, "A decoder returned an unexpected error code. "
730 "This is a bug, please report it.\n");
731 ✗ return AVERROR_BUG;
732 }
733
1/2
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✗ Branch 1 not taken.
 415 av_log(dp, AV_LOG_ERROR, "Error submitting %s to decoder: %s\n",
734 415 pkt ? "packet" : "EOF", av_err2str(ret));
735
736
1/2
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✓ Branch 1 taken 415 times.
 415 if (ret == AVERROR_EOF)
737 ✗ return ret;
738
739 415 dp->dec.decode_errors++;
740
1/2
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✓ Branch 1 taken 415 times.
 415 if (exit_on_error)
741 ✗ return ret;
742 }
743
744 389175 while (1) {
745 FrameData *fd;
746 761429 unsigned outputs_mask = 1;
747
748 761429 av_frame_unref(frame);
749
750 761429 update_benchmark(NULL);
751 761429 ret = avcodec_receive_frame(dec, frame);
752 761429 update_benchmark("decode_%s %s", type_desc, dp->parent_name);
753
754
2/2
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✓ Branch 1 taken 395934 times.
 761429 if (ret == AVERROR(EAGAIN)) {
755
1/2
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 365495 av_assert0(pkt); // should never happen during flushing
756 372254 return 0;
757
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 395934 } else if (ret == AVERROR_EOF) {
758 3309 return ret;
759
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 392625 } else if (ret < 0) {
760 6 av_log(dp, AV_LOG_ERROR, "Decoding error: %s\n", av_err2str(ret));
761 6 dp->dec.decode_errors++;
762
763
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 6 if (exit_on_error)
764 ✗ return ret;
765
766 6 continue;
767 }
768
769
4/4
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✓ Branch 2 taken 37 times.
✓ Branch 3 taken 392545 times.
 392619 if (frame->decode_error_flags || (frame->flags & AV_FRAME_FLAG_CORRUPT)) {
770
1/2
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✓ Branch 1 taken 74 times.
 74 av_log(dp, exit_on_error ? AV_LOG_FATAL : AV_LOG_WARNING,
771 "corrupt decoded frame\n");
772
1/2
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✓ Branch 1 taken 74 times.
 74 if (exit_on_error)
773 ✗ return AVERROR_INVALIDDATA;
774 }
775
776 392619 fd = frame_data(frame);
777
1/2
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✓ Branch 1 taken 392619 times.
 392619 if (!fd) {
778 ✗ av_frame_unref(frame);
779 ✗ return AVERROR(ENOMEM);
780 }
781 392619 fd->dec.pts = frame->pts;
782 392619 fd->dec.tb = dec->pkt_timebase;
783 392619 fd->dec.frame_num = dec->frame_num - 1;
784 392619 fd->bits_per_raw_sample = dec->bits_per_raw_sample;
785
786 392619 fd->wallclock[LATENCY_PROBE_DEC_POST] = av_gettime_relative();
787
788 392619 frame->time_base = dec->pkt_timebase;
789
790
2/2
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✓ Branch 1 taken 138370 times.
 392619 if (dec->codec_type == AVMEDIA_TYPE_AUDIO) {
791 254249 dp->dec.samples_decoded += frame->nb_samples;
792
793 254249 audio_ts_process(dp, frame);
794 } else {
795 138370 ret = video_frame_process(dp, frame, &outputs_mask);
796
1/2
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✓ Branch 1 taken 138370 times.
 138370 if (ret < 0) {
797 ✗ av_log(dp, AV_LOG_FATAL,
798 "Error while processing the decoded data\n");
799 ✗ return ret;
800 }
801 }
802
803 392619 dp->dec.frames_decoded++;
804
805
2/2
✓ Branch 0 taken 392619 times.
✓ Branch 1 taken 389169 times.
 781788 for (int i = 0; i < stdc_count_ones(outputs_mask); i++) {
806 392619 AVFrame *to_send = frame;
807 int pos;
808
809
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 392619 av_assert0(outputs_mask);
810
1/2
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✗ Branch 1 not taken.
 392619 pos = stdc_trailing_zeros(outputs_mask);
811 392619 outputs_mask &= ~(1U << pos);
812
813 // this is not the last output and sch_dec_send() consumes the frame
814 // given to it, so make a temporary reference
815
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 392619 times.
 392619 if (outputs_mask) {
816 ✗ to_send = dp->frame_tmp_ref;
817 ✗ ret = av_frame_ref(to_send, frame);
818 ✗ if (ret < 0)
819 ✗ return ret;
820 }
821
822 392619 ret = sch_dec_send(dp->sch, dp->sch_idx, pos, to_send);
823
2/2
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✓ Branch 1 taken 389169 times.
 392619 if (ret < 0) {
824 3450 av_frame_unref(to_send);
825
1/2
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✓ Branch 1 taken 3450 times.
 3450 return ret == AVERROR_EOF ? AVERROR_EXIT : ret;
826 }
827 }
828 }
829 }
830
831 static int dec_open(DecoderPriv *dp, AVDictionary **dec_opts,
832 const DecoderOpts *o, AVFrame *param_out);
833
834 1 static int dec_standalone_open(DecoderPriv *dp, const AVPacket *pkt)
835 {
836 DecoderOpts o;
837 const FrameData *fd;
838 char name[16];
839
840
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 1 times.
 1 if (!pkt->opaque_ref)
841 ✗ return AVERROR_BUG;
842 1 fd = (FrameData *)pkt->opaque_ref->data;
843
844
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 1 times.
 1 if (!fd->par_enc)
845 ✗ return AVERROR_BUG;
846
847 1 memset(&o, 0, sizeof(o));
848
849 1 o.par = fd->par_enc;
850 1 o.time_base = pkt->time_base;
851
852 1 o.codec = dp->standalone_init.codec;
853
1/2
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✗ Branch 1 not taken.
 1 if (!o.codec)
854 1 o.codec = avcodec_find_decoder(o.par->codec_id);
855
1/2
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✓ Branch 1 taken 1 times.
 1 if (!o.codec) {
856 ✗ const AVCodecDescriptor *desc = avcodec_descriptor_get(o.par->codec_id);
857
858 ✗ av_log(dp, AV_LOG_ERROR, "Cannot find a decoder for codec ID '%s'\n",
859 desc ? desc->name : "?");
860 ✗ return AVERROR_DECODER_NOT_FOUND;
861 }
862
863 1 snprintf(name, sizeof(name), "dec%d", dp->index);
864 1 o.name = name;
865
866 1 return dec_open(dp, &dp->standalone_init.opts, &o, NULL);
867 }
868
869 6793 static void dec_thread_set_name(const DecoderPriv *dp)
870 {
871 6793 char name[16] = "dec";
872
873
2/2
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✓ Branch 1 taken 6792 times.
 6793 if (dp->index >= 0)
874 1 av_strlcatf(name, sizeof(name), "%d", dp->index);
875
1/2
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✗ Branch 1 not taken.
 6792 else if (dp->parent_name)
876 6792 av_strlcat(name, dp->parent_name, sizeof(name));
877
878
2/2
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✓ Branch 1 taken 1 times.
 6793 if (dp->dec_ctx)
879 6792 av_strlcatf(name, sizeof(name), ":%s", dp->dec_ctx->codec->name);
880
881 6793 ff_thread_setname(name);
882 6793 }
883
884 6793 static void dec_thread_uninit(DecThreadContext *dt)
885 {
886 6793 av_packet_free(&dt->pkt);
887 6793 av_frame_free(&dt->frame);
888
889 6793 memset(dt, 0, sizeof(*dt));
890 6793 }
891
892 6793 static int dec_thread_init(DecThreadContext *dt)
893 {
894 6793 memset(dt, 0, sizeof(*dt));
895
896 6793 dt->frame = av_frame_alloc();
897
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 6793 times.
 6793 if (!dt->frame)
898 ✗ goto fail;
899
900 6793 dt->pkt = av_packet_alloc();
901
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 6793 times.
 6793 if (!dt->pkt)
902 ✗ goto fail;
903
904 6793 return 0;
905
906 ✗ fail:
907 ✗ dec_thread_uninit(dt);
908 ✗ return AVERROR(ENOMEM);
909 }
910
911 6793 static int decoder_thread(void *arg)
912 {
913 6793 DecoderPriv *dp = arg;
914 DecThreadContext dt;
915 6793 int ret = 0, input_status = 0;
916
917 6793 ret = dec_thread_init(&dt);
918
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 6793 times.
 6793 if (ret < 0)
919 ✗ goto finish;
920
921 6793 dec_thread_set_name(dp);
922
923
1/2
✓ Branch 0 taken 376388 times.
✗ Branch 1 not taken.
 376388 while (!input_status) {
924 int flush_buffers, have_data;
925
926 376388 input_status = sch_dec_receive(dp->sch, dp->sch_idx, dt.pkt);
927
2/2
✓ Branch 0 taken 373044 times.
✓ Branch 1 taken 3344 times.
 749432 have_data = input_status >= 0 &&
928
3/4
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✓ Branch 1 taken 372086 times.
✓ Branch 2 taken 958 times.
✗ Branch 3 not taken.
 373044 (dt.pkt->buf || dt.pkt->side_data_elems ||
929
2/2
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✓ Branch 1 taken 948 times.
 958 (intptr_t)dt.pkt->opaque == PKT_OPAQUE_SUB_HEARTBEAT ||
930
2/2
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✓ Branch 1 taken 6 times.
 10 (intptr_t)dt.pkt->opaque == PKT_OPAQUE_FIX_SUB_DURATION);
931
4/4
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✓ Branch 1 taken 3344 times.
✓ Branch 2 taken 6 times.
✓ Branch 3 taken 373038 times.
 376388 flush_buffers = input_status >= 0 && !have_data;
932
2/2
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✓ Branch 1 taken 373038 times.
 376388 if (!have_data)
933
2/2
✓ Branch 0 taken 6 times.
✓ Branch 1 taken 3344 times.
 3350 av_log(dp, AV_LOG_VERBOSE, "Decoder thread received %s packet\n",
934 flush_buffers ? "flush" : "EOF");
935
936 // this is a standalone decoder that has not been initialized yet
937
2/2
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✓ Branch 1 taken 376387 times.
 376388 if (!dp->dec_ctx) {
938
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 1 times.
 1 if (flush_buffers)
939 ✗ continue;
940
1/2
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✓ Branch 1 taken 1 times.
 1 if (input_status < 0) {
941 ✗ av_log(dp, AV_LOG_ERROR,
942 "Cannot initialize a standalone decoder\n");
943 ✗ ret = input_status;
944 ✗ goto finish;
945 }
946
947 1 ret = dec_standalone_open(dp, dt.pkt);
948
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 1 times.
 1 if (ret < 0)
949 ✗ goto finish;
950 }
951
952
2/2
✓ Branch 0 taken 373038 times.
✓ Branch 1 taken 3350 times.
 376388 ret = packet_decode(dp, have_data ? dt.pkt : NULL, dt.frame);
953
954 376388 av_packet_unref(dt.pkt);
955 376388 av_frame_unref(dt.frame);
956
957 // AVERROR_EOF - EOF from the decoder
958 // AVERROR_EXIT - EOF from the scheduler
959 // we treat them differently when flushing
960
2/2
✓ Branch 0 taken 3450 times.
✓ Branch 1 taken 372938 times.
 376388 if (ret == AVERROR_EXIT) {
961 3450 ret = AVERROR_EOF;
962 3450 flush_buffers = 0;
963 }
964
965
2/2
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✓ Branch 1 taken 369589 times.
 376388 if (ret == AVERROR_EOF) {
966
2/2
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✓ Branch 1 taken 6793 times.
 6799 av_log(dp, AV_LOG_VERBOSE, "Decoder returned EOF, %s\n",
967 flush_buffers ? "resetting" : "finishing");
968
969
2/2
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✓ Branch 1 taken 6 times.
 6799 if (!flush_buffers)
970 6793 break;
971
972 /* report last frame duration to the scheduler */
973
2/2
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✓ Branch 1 taken 3 times.
 6 if (dp->dec_ctx->codec_type == AVMEDIA_TYPE_AUDIO) {
974 3 dt.pkt->pts = dp->last_frame_pts + dp->last_frame_duration_est;
975 3 dt.pkt->time_base = dp->last_frame_tb;
976 }
977
978 6 avcodec_flush_buffers(dp->dec_ctx);
979
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 369589 } else if (ret < 0) {
980 ✗ av_log(dp, AV_LOG_ERROR, "Error processing packet in decoder: %s\n",
981 ✗ av_err2str(ret));
982 ✗ break;
983 }
984 }
985
986 // EOF is normal thread termination
987
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 6793 if (ret == AVERROR_EOF)
988 6793 ret = 0;
989
990 // on success send EOF timestamp to our downstreams
991
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 6793 if (ret >= 0) {
992 float err_rate;
993
994 6793 av_frame_unref(dt.frame);
995
996 6793 dt.frame->opaque = (void*)(intptr_t)FRAME_OPAQUE_EOF;
997
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 6793 dt.frame->pts = dp->last_frame_pts == AV_NOPTS_VALUE ? AV_NOPTS_VALUE :
998 6750 dp->last_frame_pts + dp->last_frame_duration_est;
999 6793 dt.frame->time_base = dp->last_frame_tb;
1000
1001 6793 ret = sch_dec_send(dp->sch, dp->sch_idx, 0, dt.frame);
1002
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 6793 if (ret < 0 && ret != AVERROR_EOF) {
1003 ✗ av_log(dp, AV_LOG_FATAL,
1004 ✗ "Error signalling EOF timestamp: %s\n", av_err2str(ret));
1005 ✗ goto finish;
1006 }
1007 6793 ret = 0;
1008
1009
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 3 err_rate = (dp->dec.frames_decoded || dp->dec.decode_errors) ?
1010
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 6796 dp->dec.decode_errors / (dp->dec.frames_decoded + dp->dec.decode_errors) : 0.f;
1011
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 6793 if (err_rate > max_error_rate) {
1012 1 av_log(dp, AV_LOG_FATAL, "Decode error rate %g exceeds maximum %g\n",
1013 err_rate, max_error_rate);
1014 1 ret = FFMPEG_ERROR_RATE_EXCEEDED;
1015
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 6792 } else if (err_rate)
1016 1 av_log(dp, AV_LOG_VERBOSE, "Decode error rate %g\n", err_rate);
1017 }
1018
1019 6791 finish:
1020 6793 dec_thread_uninit(&dt);
1021
1022 6793 return ret;
1023 }
1024
1025 5555 int dec_request_view(Decoder *d, const ViewSpecifier *vs,
1026 SchedulerNode *src)
1027 {
1028 5555 DecoderPriv *dp = dp_from_dec(d);
1029 5555 unsigned out_idx = 0;
1030 int ret;
1031
1032
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 5555 if (dp->multiview_user_config) {
1033 ✗ if (!vs || vs->type == VIEW_SPECIFIER_TYPE_NONE) {
1034 ✗ *src = SCH_DEC_OUT(dp->sch_idx, 0);
1035 ✗ return 0;
1036 }
1037
1038 ✗ av_log(dp, AV_LOG_ERROR,
1039 "Manually selecting views with -view_ids cannot be combined "
1040 "with view selection via stream specifiers. It is strongly "
1041 "recommended you always use stream specifiers only.\n");
1042 ✗ return AVERROR(EINVAL);
1043 }
1044
1045 // when multiview_user_config is not set, NONE specifier is treated
1046 // as requesting the base view
1047
4/4
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 5555 vs = (vs && vs->type != VIEW_SPECIFIER_TYPE_NONE) ? vs :
1048 5542 &(ViewSpecifier){ .type = VIEW_SPECIFIER_TYPE_IDX, .val = 0 };
1049
1050 // check if the specifier matches an already-existing one
1051
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 5561 for (int i = 0; i < dp->nb_views_requested; i++) {
1052 10 const ViewSpecifier *vs1 = &dp->views_requested[i].vs;
1053
1054
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 10 if (vs->type == vs1->type &&
1055
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 10 (vs->type == VIEW_SPECIFIER_TYPE_ALL || vs->val == vs1->val)) {
1056 4 *src = SCH_DEC_OUT(dp->sch_idx, dp->views_requested[i].out_idx);
1057 4 return 0;
1058 }
1059 }
1060
1061 // we use a bitmask to map view IDs to decoder outputs, which
1062 // limits the number of outputs allowed
1063
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 5551 if (dp->nb_views_requested >= sizeof(dp->view_map[0].out_mask) * 8) {
1064 ✗ av_log(dp, AV_LOG_ERROR, "Too many view specifiers\n");
1065 ✗ return AVERROR(ENOSYS);
1066 }
1067
1068 5551 ret = GROW_ARRAY(dp->views_requested, dp->nb_views_requested);
1069
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 5551 if (ret < 0)
1070 ✗ return ret;
1071
1072
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 5551 if (dp->nb_views_requested > 1) {
1073 6 ret = sch_add_dec_output(dp->sch, dp->sch_idx);
1074
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 6 if (ret < 0)
1075 ✗ return ret;
1076 6 out_idx = ret;
1077 }
1078
1079 5551 dp->views_requested[dp->nb_views_requested - 1].out_idx = out_idx;
1080 5551 dp->views_requested[dp->nb_views_requested - 1].vs = *vs;
1081
1082 5551 *src = SCH_DEC_OUT(dp->sch_idx,
1083 dp->views_requested[dp->nb_views_requested - 1].out_idx);
1084
1085 5551 return 0;
1086 }
1087
1088 1012 static int multiview_setup(DecoderPriv *dp, AVCodecContext *dec_ctx)
1089 {
1090 1012 unsigned views_wanted = 0;
1091
1092 unsigned nb_view_ids_av, nb_view_ids;
1093 1012 unsigned *view_ids_av = NULL, *view_pos_av = NULL;
1094 1012 int *view_ids = NULL;
1095 int ret;
1096
1097 // no views/only base view were requested - do nothing
1098
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 1012 if (!dp->nb_views_requested ||
1099
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 1012 (dp->nb_views_requested == 1 &&
1100
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 1003 dp->views_requested[0].vs.type == VIEW_SPECIFIER_TYPE_IDX &&
1101
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✗ Branch 1 not taken.
 1002 dp->views_requested[0].vs.val == 0))
1102 1002 return 0;
1103
1104 10 av_freep(&dp->view_map);
1105 10 dp->nb_view_map = 0;
1106
1107 // retrieve views available in current CVS
1108 10 ret = av_opt_get_array_size(dec_ctx, "view_ids_available",
1109 AV_OPT_SEARCH_CHILDREN, &nb_view_ids_av);
1110
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 10 if (ret < 0) {
1111 ✗ av_log(dp, AV_LOG_ERROR,
1112 "Multiview decoding requested, but decoder '%s' does not "
1113 ✗ "support it\n", dec_ctx->codec->name);
1114 ✗ return AVERROR(ENOSYS);
1115 }
1116
1117
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 10 if (nb_view_ids_av) {
1118 unsigned nb_view_pos_av;
1119
1120
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 8 if (nb_view_ids_av >= sizeof(views_wanted) * 8) {
1121 ✗ av_log(dp, AV_LOG_ERROR, "Too many views in video: %u\n", nb_view_ids_av);
1122 ✗ ret = AVERROR(ENOSYS);
1123 ✗ goto fail;
1124 }
1125
1126 8 view_ids_av = av_calloc(nb_view_ids_av, sizeof(*view_ids_av));
1127
1/2
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 8 if (!view_ids_av) {
1128 ✗ ret = AVERROR(ENOMEM);
1129 ✗ goto fail;
1130 }
1131
1132 8 ret = av_opt_get_array(dec_ctx, "view_ids_available",
1133 AV_OPT_SEARCH_CHILDREN, 0, nb_view_ids_av,
1134 AV_OPT_TYPE_UINT, view_ids_av);
1135
1/2
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 8 if (ret < 0)
1136 ✗ goto fail;
1137
1138 8 ret = av_opt_get_array_size(dec_ctx, "view_pos_available",
1139 AV_OPT_SEARCH_CHILDREN, &nb_view_pos_av);
1140
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 8 if (ret >= 0 && nb_view_pos_av == nb_view_ids_av) {
1141 1 view_pos_av = av_calloc(nb_view_ids_av, sizeof(*view_pos_av));
1142
1/2
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 1 if (!view_pos_av) {
1143 ✗ ret = AVERROR(ENOMEM);
1144 ✗ goto fail;
1145 }
1146
1147 1 ret = av_opt_get_array(dec_ctx, "view_pos_available",
1148 AV_OPT_SEARCH_CHILDREN, 0, nb_view_ids_av,
1149 AV_OPT_TYPE_UINT, view_pos_av);
1150
1/2
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 1 if (ret < 0)
1151 ✗ goto fail;
1152 }
1153 } else {
1154 // assume there is a single view with ID=0
1155 2 nb_view_ids_av = 1;
1156 2 view_ids_av = av_calloc(nb_view_ids_av, sizeof(*view_ids_av));
1157 2 view_pos_av = av_calloc(nb_view_ids_av, sizeof(*view_pos_av));
1158
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 2 if (!view_ids_av || !view_pos_av) {
1159 ✗ ret = AVERROR(ENOMEM);
1160 ✗ goto fail;
1161 }
1162 2 view_pos_av[0] = AV_STEREO3D_VIEW_UNSPEC;
1163 }
1164
1165 10 dp->view_map = av_calloc(nb_view_ids_av, sizeof(*dp->view_map));
1166
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 10 if (!dp->view_map) {
1167 ✗ ret = AVERROR(ENOMEM);
1168 ✗ goto fail;
1169 }
1170 10 dp->nb_view_map = nb_view_ids_av;
1171
1172
2/2
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 28 for (int i = 0; i < dp->nb_view_map; i++)
1173 18 dp->view_map[i].id = view_ids_av[i];
1174
1175 // figure out which views should go to which output
1176
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 29 for (int i = 0; i < dp->nb_views_requested; i++) {
1177 19 const ViewSpecifier *vs = &dp->views_requested[i].vs;
1178
1179
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 19 switch (vs->type) {
1180 8 case VIEW_SPECIFIER_TYPE_IDX:
1181
2/2
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 8 if (vs->val >= nb_view_ids_av) {
1182 2 av_log(dp, exit_on_error ? AV_LOG_ERROR : AV_LOG_WARNING,
1183 "View with index %u requested, but only %u views available "
1184 "in current video sequence (more views may or may not be "
1185 "available in later sequences).\n",
1186
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 2 vs->val, nb_view_ids_av);
1187
1/2
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 2 if (exit_on_error) {
1188 ✗ ret = AVERROR(EINVAL);
1189 ✗ goto fail;
1190 }
1191
1192 2 continue;
1193 }
1194 6 views_wanted |= 1U << vs->val;
1195 6 dp->view_map[vs->val].out_mask |= 1ULL << i;
1196
1197 6 break;
1198 8 case VIEW_SPECIFIER_TYPE_ID: {
1199 8 int view_idx = -1;
1200
1201
1/2
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 12 for (unsigned j = 0; j < nb_view_ids_av; j++) {
1202
2/2
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 12 if (view_ids_av[j] == vs->val) {
1203 8 view_idx = j;
1204 8 break;
1205 }
1206 }
1207
1/2
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 8 if (view_idx < 0) {
1208 ✗ av_log(dp, exit_on_error ? AV_LOG_ERROR : AV_LOG_WARNING,
1209 "View with ID %u requested, but is not available "
1210 ✗ "in the video sequence\n", vs->val);
1211 ✗ if (exit_on_error) {
1212 ✗ ret = AVERROR(EINVAL);
1213 ✗ goto fail;
1214 }
1215
1216 ✗ continue;
1217 }
1218 8 views_wanted |= 1U << view_idx;
1219 8 dp->view_map[view_idx].out_mask |= 1ULL << i;
1220
1221 8 break;
1222 }
1223 2 case VIEW_SPECIFIER_TYPE_POS: {
1224 2 int view_idx = -1;
1225
1226
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 3 for (unsigned j = 0; view_pos_av && j < nb_view_ids_av; j++) {
1227
2/2
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 3 if (view_pos_av[j] == vs->val) {
1228 2 view_idx = j;
1229 2 break;
1230 }
1231 }
1232
1/2
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 2 if (view_idx < 0) {
1233 ✗ av_log(dp, exit_on_error ? AV_LOG_ERROR : AV_LOG_WARNING,
1234 "View position '%s' requested, but is not available "
1235 ✗ "in the video sequence\n", av_stereo3d_view_name(vs->val));
1236 ✗ if (exit_on_error) {
1237 ✗ ret = AVERROR(EINVAL);
1238 ✗ goto fail;
1239 }
1240
1241 ✗ continue;
1242 }
1243 2 views_wanted |= 1U << view_idx;
1244 2 dp->view_map[view_idx].out_mask |= 1ULL << i;
1245
1246 2 break;
1247 }
1248 1 case VIEW_SPECIFIER_TYPE_ALL:
1249 1 views_wanted |= (1U << nb_view_ids_av) - 1;
1250
1251
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 3 for (int j = 0; j < dp->nb_view_map; j++)
1252 2 dp->view_map[j].out_mask |= 1ULL << i;
1253
1254 1 break;
1255 }
1256 }
1257
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 10 if (!views_wanted) {
1258 ✗ av_log(dp, AV_LOG_ERROR, "No views were selected for decoding\n");
1259 ✗ ret = AVERROR(EINVAL);
1260 ✗ goto fail;
1261 }
1262
1263 // signal to decoder which views we want
1264 10 nb_view_ids = stdc_count_ones(views_wanted);
1265 10 view_ids = av_malloc_array(nb_view_ids, sizeof(*view_ids));
1266
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 10 if (!view_ids) {
1267 ✗ ret = AVERROR(ENOMEM);
1268 ✗ goto fail;
1269 }
1270
1271
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 28 for (unsigned i = 0; i < nb_view_ids; i++) {
1272 int pos;
1273
1274
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 18 av_assert0(views_wanted);
1275
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 18 pos = stdc_trailing_zeros(views_wanted);
1276 18 views_wanted &= ~(1U << pos);
1277
1278 18 view_ids[i] = view_ids_av[pos];
1279 }
1280
1281 // unset view_ids in case we set it earlier
1282 10 av_opt_set(dec_ctx, "view_ids", NULL, AV_OPT_SEARCH_CHILDREN);
1283
1284 10 ret = av_opt_set_array(dec_ctx, "view_ids", AV_OPT_SEARCH_CHILDREN,
1285 0, nb_view_ids, AV_OPT_TYPE_INT, view_ids);
1286
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 10 if (ret < 0)
1287 ✗ goto fail;
1288
1289
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 10 if (!dp->frame_tmp_ref) {
1290 7 dp->frame_tmp_ref = av_frame_alloc();
1291
1/2
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✗ Branch 1 not taken.
 7 if (!dp->frame_tmp_ref) {
1292 ✗ ret = AVERROR(ENOMEM);
1293 ✗ goto fail;
1294 }
1295 }
1296
1297 10 fail:
1298 10 av_freep(&view_ids_av);
1299 10 av_freep(&view_pos_av);
1300 10 av_freep(&view_ids);
1301
1302 10 return ret;
1303 }
1304
1305 6793 static void multiview_check_manual(DecoderPriv *dp, const AVDictionary *dec_opts)
1306 {
1307
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✓ Branch 2 taken 6793 times.
 6793 if (av_dict_get(dec_opts, "view_ids", NULL, 0)) {
1308 ✗ av_log(dp, AV_LOG_WARNING, "Manually selecting views with -view_ids "
1309 "is not recommended, use view specifiers instead\n");
1310 ✗ dp->multiview_user_config = 1;
1311 }
1312 6793 }
1313
1314 1012 static enum AVPixelFormat get_format(AVCodecContext *s, const enum AVPixelFormat *pix_fmts)
1315 {
1316 1012 DecoderPriv *dp = s->opaque;
1317 const enum AVPixelFormat *p;
1318 int ret;
1319
1320 1012 ret = multiview_setup(dp, s);
1321
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 1012 if (ret < 0) {
1322 ✗ av_log(dp, AV_LOG_ERROR, "Error setting up multiview decoding: %s\n",
1323 ✗ av_err2str(ret));
1324 ✗ return AV_PIX_FMT_NONE;
1325 }
1326
1327
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 2733 for (p = pix_fmts; *p != AV_PIX_FMT_NONE; p++) {
1328 2733 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(*p);
1329 2733 const AVCodecHWConfig *config = NULL;
1330
1331
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 2733 if (!(desc->flags & AV_PIX_FMT_FLAG_HWACCEL))
1332 1012 break;
1333
1334
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 1721 if (dp->hwaccel_id == HWACCEL_GENERIC ||
1335
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 1721 dp->hwaccel_id == HWACCEL_AUTO) {
1336 ✗ for (int i = 0;; i++) {
1337 ✗ config = avcodec_get_hw_config(s->codec, i);
1338 ✗ if (!config)
1339 ✗ break;
1340 ✗ if (!(config->methods &
1341 AV_CODEC_HW_CONFIG_METHOD_HW_DEVICE_CTX))
1342 ✗ continue;
1343 ✗ if (config->pix_fmt == *p)
1344 ✗ break;
1345 }
1346 }
1347
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 1721 if (config && config->device_type == dp->hwaccel_device_type) {
1348 ✗ dp->hwaccel_pix_fmt = *p;
1349 ✗ break;
1350 }
1351 }
1352
1353 1012 return *p;
1354 }
1355
1356 367435 static int get_buffer(AVCodecContext *dec_ctx, AVFrame *frame, int flags)
1357 {
1358 367435 DecoderPriv *dp = dec_ctx->opaque;
1359
1360 // for multiview video, store the output mask in frame opaque
1361
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 367435 if (dp->nb_view_map) {
1362 613 const AVFrameSideData *sd = av_frame_get_side_data(frame, AV_FRAME_DATA_VIEW_ID);
1363
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 613 int view_id = sd ? *(int*)sd->data : 0;
1364
1365
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 890 for (int i = 0; i < dp->nb_view_map; i++) {
1366
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 890 if (dp->view_map[i].id == view_id) {
1367 613 frame->opaque = (void*)dp->view_map[i].out_mask;
1368 613 break;
1369 }
1370 }
1371 }
1372
1373 367435 return avcodec_default_get_buffer2(dec_ctx, frame, flags);
1374 }
1375
1376 6793 static HWDevice *hw_device_match_by_codec(const AVCodec *codec)
1377 {
1378 const AVCodecHWConfig *config;
1379 HWDevice *dev;
1380 6793 for (int i = 0;; i++) {
1381 8505 config = avcodec_get_hw_config(codec, i);
1382
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 8505 if (!config)
1383 6793 return NULL;
1384
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 1712 if (!(config->methods & AV_CODEC_HW_CONFIG_METHOD_HW_DEVICE_CTX))
1385 ✗ continue;
1386 1712 dev = hw_device_get_by_type(config->device_type);
1387
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 1712 if (dev)
1388 ✗ return dev;
1389 }
1390 }
1391
1392 6793 static int hw_device_setup_for_decode(DecoderPriv *dp,
1393 const AVCodec *codec,
1394 const char *hwaccel_device)
1395 {
1396 const AVCodecHWConfig *config;
1397 enum AVHWDeviceType type;
1398 6793 HWDevice *dev = NULL;
1399 6793 int err, auto_device = 0;
1400
1401
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 6793 if (hwaccel_device) {
1402 ✗ dev = hw_device_get_by_name(hwaccel_device);
1403 ✗ if (!dev) {
1404 ✗ if (dp->hwaccel_id == HWACCEL_AUTO) {
1405 ✗ auto_device = 1;
1406 ✗ } else if (dp->hwaccel_id == HWACCEL_GENERIC) {
1407 ✗ type = dp->hwaccel_device_type;
1408 ✗ err = hw_device_init_from_type(type, hwaccel_device,
1409 &dev);
1410 } else {
1411 // This will be dealt with by API-specific initialisation
1412 // (using hwaccel_device), so nothing further needed here.
1413 ✗ return 0;
1414 }
1415 } else {
1416 ✗ if (dp->hwaccel_id == HWACCEL_AUTO) {
1417 ✗ dp->hwaccel_device_type = dev->type;
1418 ✗ } else if (dp->hwaccel_device_type != dev->type) {
1419 ✗ av_log(dp, AV_LOG_ERROR, "Invalid hwaccel device "
1420 "specified for decoder: device %s of type %s is not "
1421 ✗ "usable with hwaccel %s.\n", dev->name,
1422 ✗ av_hwdevice_get_type_name(dev->type),
1423 av_hwdevice_get_type_name(dp->hwaccel_device_type));
1424 ✗ return AVERROR(EINVAL);
1425 }
1426 }
1427 } else {
1428
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 6793 if (dp->hwaccel_id == HWACCEL_AUTO) {
1429 ✗ auto_device = 1;
1430
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 6793 } else if (dp->hwaccel_id == HWACCEL_GENERIC) {
1431 ✗ type = dp->hwaccel_device_type;
1432 ✗ dev = hw_device_get_by_type(type);
1433
1434 // When "-qsv_device device" is used, an internal QSV device named
1435 // as "__qsv_device" is created. Another QSV device is created too
1436 // if "-init_hw_device qsv=name:device" is used. There are 2 QSV devices
1437 // if both "-qsv_device device" and "-init_hw_device qsv=name:device"
1438 // are used, hw_device_get_by_type(AV_HWDEVICE_TYPE_QSV) returns NULL.
1439 // To keep back-compatibility with the removed ad-hoc libmfx setup code,
1440 // call hw_device_get_by_name("__qsv_device") to select the internal QSV
1441 // device.
1442 ✗ if (!dev && type == AV_HWDEVICE_TYPE_QSV)
1443 ✗ dev = hw_device_get_by_name("__qsv_device");
1444
1445 ✗ if (!dev)
1446 ✗ err = hw_device_init_from_type(type, NULL, &dev);
1447 } else {
1448 6793 dev = hw_device_match_by_codec(codec);
1449
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 6793 if (!dev) {
1450 // No device for this codec, but not using generic hwaccel
1451 // and therefore may well not need one - ignore.
1452 6793 return 0;
1453 }
1454 }
1455 }
1456
1457 ✗ if (auto_device) {
1458 ✗ if (!avcodec_get_hw_config(codec, 0)) {
1459 // Decoder does not support any hardware devices.
1460 ✗ return 0;
1461 }
1462 ✗ for (int i = 0; !dev; i++) {
1463 ✗ config = avcodec_get_hw_config(codec, i);
1464 ✗ if (!config)
1465 ✗ break;
1466 ✗ type = config->device_type;
1467 ✗ dev = hw_device_get_by_type(type);
1468 ✗ if (dev) {
1469 ✗ av_log(dp, AV_LOG_INFO, "Using auto "
1470 "hwaccel type %s with existing device %s.\n",
1471 ✗ av_hwdevice_get_type_name(type), dev->name);
1472 }
1473 }
1474 ✗ for (int i = 0; !dev; i++) {
1475 ✗ config = avcodec_get_hw_config(codec, i);
1476 ✗ if (!config)
1477 ✗ break;
1478 ✗ type = config->device_type;
1479 // Try to make a new device of this type.
1480 ✗ err = hw_device_init_from_type(type, hwaccel_device,
1481 &dev);
1482 ✗ if (err < 0) {
1483 // Can't make a device of this type.
1484 ✗ continue;
1485 }
1486 ✗ if (hwaccel_device) {
1487 ✗ av_log(dp, AV_LOG_INFO, "Using auto "
1488 "hwaccel type %s with new device created "
1489 "from %s.\n", av_hwdevice_get_type_name(type),
1490 hwaccel_device);
1491 } else {
1492 ✗ av_log(dp, AV_LOG_INFO, "Using auto "
1493 "hwaccel type %s with new default device.\n",
1494 av_hwdevice_get_type_name(type));
1495 }
1496 }
1497 ✗ if (dev) {
1498 ✗ dp->hwaccel_device_type = type;
1499 } else {
1500 ✗ av_log(dp, AV_LOG_INFO, "Auto hwaccel "
1501 "disabled: no device found.\n");
1502 ✗ dp->hwaccel_id = HWACCEL_NONE;
1503 ✗ return 0;
1504 }
1505 }
1506
1507 ✗ if (!dev) {
1508 ✗ av_log(dp, AV_LOG_ERROR, "No device available "
1509 "for decoder: device type %s needed for codec %s.\n",
1510 ✗ av_hwdevice_get_type_name(type), codec->name);
1511 ✗ return err;
1512 }
1513
1514 ✗ dp->dec_ctx->hw_device_ctx = av_buffer_ref(dev->device_ref);
1515 ✗ if (!dp->dec_ctx->hw_device_ctx)
1516 ✗ return AVERROR(ENOMEM);
1517
1518 ✗ return 0;
1519 }
1520
1521 6793 static int dec_open(DecoderPriv *dp, AVDictionary **dec_opts,
1522 const DecoderOpts *o, AVFrame *param_out)
1523 {
1524 6793 const AVCodec *codec = o->codec;
1525 int ret;
1526
1527 6793 dp->flags = o->flags;
1528 6793 dp->log_parent = o->log_parent;
1529
1530 6793 dp->dec.type = codec->type;
1531 6793 dp->framerate_in = o->framerate;
1532
1533 6793 dp->hwaccel_id = o->hwaccel_id;
1534 6793 dp->hwaccel_device_type = o->hwaccel_device_type;
1535 6793 dp->hwaccel_output_format = o->hwaccel_output_format;
1536
1537 6793 snprintf(dp->log_name, sizeof(dp->log_name), "dec:%s", codec->name);
1538
1539
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 6793 dp->parent_name = av_strdup(o->name ? o->name : "");
1540
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 6793 if (!dp->parent_name)
1541 ✗ return AVERROR(ENOMEM);
1542
1543
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 6793 if (codec->type == AVMEDIA_TYPE_SUBTITLE &&
1544
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 40 (dp->flags & DECODER_FLAG_FIX_SUB_DURATION)) {
1545
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 6 for (int i = 0; i < FF_ARRAY_ELEMS(dp->sub_prev); i++) {
1546 4 dp->sub_prev[i] = av_frame_alloc();
1547
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 4 if (!dp->sub_prev[i])
1548 ✗ return AVERROR(ENOMEM);
1549 }
1550 2 dp->sub_heartbeat = av_frame_alloc();
1551
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 2 if (!dp->sub_heartbeat)
1552 ✗ return AVERROR(ENOMEM);
1553 }
1554
1555 6793 dp->sar_override = o->par->sample_aspect_ratio;
1556
1557 6793 dp->dec_ctx = avcodec_alloc_context3(codec);
1558
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 6793 if (!dp->dec_ctx)
1559 ✗ return AVERROR(ENOMEM);
1560
1561 6793 ret = avcodec_parameters_to_context(dp->dec_ctx, o->par);
1562
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 6793 if (ret < 0) {
1563 ✗ av_log(dp, AV_LOG_ERROR, "Error initializing the decoder context.\n");
1564 ✗ return ret;
1565 }
1566
1567 6793 dp->dec_ctx->opaque = dp;
1568 6793 dp->dec_ctx->get_format = get_format;
1569 6793 dp->dec_ctx->get_buffer2 = get_buffer;
1570 6793 dp->dec_ctx->pkt_timebase = o->time_base;
1571
1572
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 6793 if (!av_dict_get(*dec_opts, "threads", NULL, 0))
1573 57 av_dict_set(dec_opts, "threads", "auto", 0);
1574
1575 6793 ret = hw_device_setup_for_decode(dp, codec, o->hwaccel_device);
1576
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 6793 if (ret < 0) {
1577 ✗ av_log(dp, AV_LOG_ERROR,
1578 "Hardware device setup failed for decoder: %s\n",
1579 ✗ av_err2str(ret));
1580 ✗ return ret;
1581 }
1582
1583 6793 ret = av_opt_set_dict2(dp->dec_ctx, dec_opts, AV_OPT_SEARCH_CHILDREN);
1584
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 6793 if (ret < 0) {
1585 ✗ av_log(dp, AV_LOG_ERROR, "Error applying decoder options: %s\n",
1586 ✗ av_err2str(ret));
1587 ✗ return ret;
1588 }
1589 6793 ret = check_avoptions(*dec_opts);
1590
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 6793 if (ret < 0)
1591 ✗ return ret;
1592
1593 6793 dp->dec_ctx->flags |= AV_CODEC_FLAG_COPY_OPAQUE;
1594
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 6793 if (o->flags & DECODER_FLAG_BITEXACT)
1595 77 dp->dec_ctx->flags |= AV_CODEC_FLAG_BITEXACT;
1596
1597 // we apply cropping outselves
1598 6793 dp->apply_cropping = dp->dec_ctx->apply_cropping;
1599 6793 dp->dec_ctx->apply_cropping = 0;
1600
1601
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 6793 if ((ret = avcodec_open2(dp->dec_ctx, codec, NULL)) < 0) {
1602 ✗ av_log(dp, AV_LOG_ERROR, "Error while opening decoder: %s\n",
1603 ✗ av_err2str(ret));
1604 ✗ return ret;
1605 }
1606
1607
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 6793 if (dp->dec_ctx->hw_device_ctx) {
1608 // Update decoder extra_hw_frames option to account for the
1609 // frames held in queues inside the ffmpeg utility. This is
1610 // called after avcodec_open2() because the user-set value of
1611 // extra_hw_frames becomes valid in there, and we need to add
1612 // this on top of it.
1613 ✗ int extra_frames = DEFAULT_FRAME_THREAD_QUEUE_SIZE;
1614 ✗ if (dp->dec_ctx->extra_hw_frames >= 0)
1615 ✗ dp->dec_ctx->extra_hw_frames += extra_frames;
1616 else
1617 ✗ dp->dec_ctx->extra_hw_frames = extra_frames;
1618 }
1619
1620 6793 dp->dec.subtitle_header = dp->dec_ctx->subtitle_header;
1621 6793 dp->dec.subtitle_header_size = dp->dec_ctx->subtitle_header_size;
1622
1623
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 6793 if (param_out) {
1624
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 6792 if (dp->dec_ctx->codec_type == AVMEDIA_TYPE_AUDIO) {
1625 1208 param_out->format = dp->dec_ctx->sample_fmt;
1626 1208 param_out->sample_rate = dp->dec_ctx->sample_rate;
1627
1628 1208 ret = av_channel_layout_copy(&param_out->ch_layout, &dp->dec_ctx->ch_layout);
1629
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 1208 if (ret < 0)
1630 ✗ return ret;
1631
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 5584 } else if (dp->dec_ctx->codec_type == AVMEDIA_TYPE_VIDEO) {
1632 5544 param_out->format = dp->dec_ctx->pix_fmt;
1633 5544 param_out->width = dp->dec_ctx->width;
1634 5544 param_out->height = dp->dec_ctx->height;
1635 5544 param_out->sample_aspect_ratio = dp->dec_ctx->sample_aspect_ratio;
1636 5544 param_out->colorspace = dp->dec_ctx->colorspace;
1637 5544 param_out->color_range = dp->dec_ctx->color_range;
1638 }
1639
1640 6792 av_frame_side_data_free(&param_out->side_data, &param_out->nb_side_data);
1641 6792 ret = clone_side_data(&param_out->side_data, &param_out->nb_side_data,
1642 6792 dp->dec_ctx->decoded_side_data, dp->dec_ctx->nb_decoded_side_data, 0);
1643
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 6792 if (ret < 0)
1644 ✗ return ret;
1645 6792 param_out->time_base = dp->dec_ctx->pkt_timebase;
1646 }
1647
1648 6793 return 0;
1649 }
1650
1651 6792 int dec_init(Decoder **pdec, Scheduler *sch,
1652 AVDictionary **dec_opts, const DecoderOpts *o,
1653 AVFrame *param_out)
1654 {
1655 DecoderPriv *dp;
1656 int ret;
1657
1658 6792 *pdec = NULL;
1659
1660 6792 ret = dec_alloc(&dp, sch, !!(o->flags & DECODER_FLAG_SEND_END_TS));
1661
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 6792 if (ret < 0)
1662 ✗ return ret;
1663
1664 6792 multiview_check_manual(dp, *dec_opts);
1665
1666 6792 ret = dec_open(dp, dec_opts, o, param_out);
1667
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 6792 if (ret < 0)
1668 ✗ goto fail;
1669
1670 6792 *pdec = &dp->dec;
1671
1672 6792 return dp->sch_idx;
1673 ✗ fail:
1674 ✗ dec_free((Decoder**)&dp);
1675 ✗ return ret;
1676 }
1677
1678 1 int dec_create(const OptionsContext *o, const char *arg, Scheduler *sch)
1679 {
1680 DecoderPriv *dp;
1681
1682 OutputFile *of;
1683 OutputStream *ost;
1684 int of_index, ost_index;
1685 char *p;
1686
1687 unsigned enc_idx;
1688 int ret;
1689
1690 1 ret = dec_alloc(&dp, sch, 0);
1691
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 1 if (ret < 0)
1692 ✗ return ret;
1693
1694 1 dp->index = nb_decoders;
1695
1696 1 ret = GROW_ARRAY(decoders, nb_decoders);
1697
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 1 if (ret < 0) {
1698 ✗ dec_free((Decoder **)&dp);
1699 ✗ return ret;
1700 }
1701
1702 1 decoders[nb_decoders - 1] = (Decoder *)dp;
1703
1704 1 of_index = strtol(arg, &p, 0);
1705
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 1 if (of_index < 0 || of_index >= nb_output_files) {
1706 ✗ av_log(dp, AV_LOG_ERROR, "Invalid output file index '%d' in %s\n", of_index, arg);
1707 ✗ return AVERROR(EINVAL);
1708 }
1709 1 of = output_files[of_index];
1710
1711 1 ost_index = strtol(p + 1, NULL, 0);
1712
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 1 if (ost_index < 0 || ost_index >= of->nb_streams) {
1713 ✗ av_log(dp, AV_LOG_ERROR, "Invalid output stream index '%d' in %s\n", ost_index, arg);
1714 ✗ return AVERROR(EINVAL);
1715 }
1716 1 ost = of->streams[ost_index];
1717
1718
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 1 if (!ost->enc) {
1719 ✗ av_log(dp, AV_LOG_ERROR, "Output stream %s has no encoder\n", arg);
1720 ✗ return AVERROR(EINVAL);
1721 }
1722
1723 1 dp->dec.type = ost->type;
1724
1725 1 ret = enc_loopback(ost->enc);
1726
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 1 if (ret < 0)
1727 ✗ return ret;
1728 1 enc_idx = ret;
1729
1730 1 ret = sch_connect(sch, SCH_ENC(enc_idx), SCH_DEC_IN(dp->sch_idx));
1731
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 1 if (ret < 0)
1732 ✗ return ret;
1733
1734 1 ret = av_dict_copy(&dp->standalone_init.opts, o->g->codec_opts, 0);
1735
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 1 if (ret < 0)
1736 ✗ return ret;
1737
1738 1 multiview_check_manual(dp, dp->standalone_init.opts);
1739
1740
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 1 if (o->codec_names.nb_opt) {
1741 ✗ const char *name = o->codec_names.opt[o->codec_names.nb_opt - 1].u.str;
1742 ✗ dp->standalone_init.codec = avcodec_find_decoder_by_name(name);
1743 ✗ if (!dp->standalone_init.codec) {
1744 ✗ av_log(dp, AV_LOG_ERROR, "No such decoder: %s\n", name);
1745 ✗ return AVERROR_DECODER_NOT_FOUND;
1746 }
1747 }
1748
1749 1 return 0;
1750 }
1751
1752 1 int dec_filter_add(Decoder *d, InputFilter *ifilter, InputFilterOptions *opts,
1753 const ViewSpecifier *vs, SchedulerNode *src)
1754 {
1755 1 DecoderPriv *dp = dp_from_dec(d);
1756 char name[16];
1757
1758 1 snprintf(name, sizeof(name), "dec%d", dp->index);
1759 1 opts->name = av_strdup(name);
1760
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 1 if (!opts->name)
1761 ✗ return AVERROR(ENOMEM);
1762
1763 1 return dec_request_view(d, vs, src);
1764 }
1765