FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/fftools/ffmpeg_dec.c
Date: 2024-11-21 09:21:34
Exec Total Coverage
Lines: 660 940 70.2%
Functions: 31 32 96.9%
Branches: 380 611 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 12273 static DecoderPriv *dp_from_dec(Decoder *d)
108 {
109 12273 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 7697 void dec_free(Decoder **pdec)
119 {
120 7697 Decoder *dec = *pdec;
121 DecoderPriv *dp;
122
123
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 7697 if (!dec)
124 943 return;
125 6754 dp = dp_from_dec(dec);
126
127 6754 avcodec_free_context(&dp->dec_ctx);
128
129 6754 av_frame_free(&dp->frame);
130 6754 av_frame_free(&dp->frame_tmp_ref);
131 6754 av_packet_free(&dp->pkt);
132
133 6754 av_dict_free(&dp->standalone_init.opts);
134
135
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 20262 for (int i = 0; i < FF_ARRAY_ELEMS(dp->sub_prev); i++)
136 13508 av_frame_free(&dp->sub_prev[i]);
137 6754 av_frame_free(&dp->sub_heartbeat);
138
139 6754 av_freep(&dp->parent_name);
140
141 6754 av_freep(&dp->views_requested);
142 6754 av_freep(&dp->view_map);
143
144 6754 av_freep(pdec);
145 }
146
147 535 static const char *dec_item_name(void *obj)
148 {
149 535 const DecoderPriv *dp = obj;
150
151 535 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 6754 static int dec_alloc(DecoderPriv **pdec, Scheduler *sch, int send_end_ts)
164 {
165 DecoderPriv *dp;
166 6754 int ret = 0;
167
168 6754 *pdec = NULL;
169
170 6754 dp = av_mallocz(sizeof(*dp));
171
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 6754 if (!dp)
172 ✗ return AVERROR(ENOMEM);
173
174 6754 dp->frame = av_frame_alloc();
175
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 6754 if (!dp->frame)
176 ✗ goto fail;
177
178 6754 dp->pkt = av_packet_alloc();
179
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 6754 if (!dp->pkt)
180 ✗ goto fail;
181
182 6754 dp->index = -1;
183 6754 dp->dec.class = &dec_class;
184 6754 dp->last_filter_in_rescale_delta = AV_NOPTS_VALUE;
185 6754 dp->last_frame_pts = AV_NOPTS_VALUE;
186 6754 dp->last_frame_tb = (AVRational){ 1, 1 };
187 6754 dp->hwaccel_pix_fmt = AV_PIX_FMT_NONE;
188
189 6754 ret = sch_add_dec(sch, decoder_thread, dp, send_end_ts);
190
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 6754 if (ret < 0)
191 ✗ goto fail;
192 6754 dp->sch = sch;
193 6754 dp->sch_idx = ret;
194
195 6754 *pdec = dp;
196
197 6754 return 0;
198 ✗ fail:
199 ✗ dec_free((Decoder**)&dp);
200 ✗ return ret >= 0 ? AVERROR(ENOMEM) : ret;
201 }
202
203 254904 static AVRational audio_samplerate_update(DecoderPriv *dp,
204 const AVFrame *frame)
205 {
206 254904 const int prev = dp->last_frame_tb.den;
207 254904 const int sr = frame->sample_rate;
208
209 AVRational tb_new;
210 int64_t gcd;
211
212
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 254904 if (frame->sample_rate == dp->last_frame_sample_rate)
213 253701 goto finish;
214
215 1203 gcd = av_gcd(prev, sr);
216
217
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 1203 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 1203 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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 1203 if (frame->time_base.num == 1 && frame->time_base.den > tb_new.den &&
230
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 106 !(frame->time_base.den % tb_new.den))
231 41 tb_new = frame->time_base;
232
233
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 1203 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 1203 dp->last_frame_duration_est = av_rescale_q(dp->last_frame_duration_est,
237 dp->last_frame_tb, tb_new);
238
239 1203 dp->last_frame_tb = tb_new;
240 1203 dp->last_frame_sample_rate = frame->sample_rate;
241
242 254904 finish:
243 254904 return dp->last_frame_tb;
244 }
245
246 254904 static void audio_ts_process(DecoderPriv *dp, AVFrame *frame)
247 {
248 254904 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 254904 tb = audio_samplerate_update(dp, frame);
256
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 254904 pts_pred = dp->last_frame_pts == AV_NOPTS_VALUE ? 0 :
257 253701 dp->last_frame_pts + dp->last_frame_duration_est;
258
259
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 254904 if (frame->pts == AV_NOPTS_VALUE) {
260 50343 frame->pts = pts_pred;
261 50343 frame->time_base = tb;
262
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 204561 } else if (dp->last_frame_pts != AV_NOPTS_VALUE &&
263
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 203371 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
266 610 dp->last_filter_in_rescale_delta = AV_NOPTS_VALUE;
267 }
268
269 254904 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 254904 dp->last_frame_pts = frame->pts;
274 254904 dp->last_frame_duration_est = av_rescale_q(frame->nb_samples,
275 tb_filter, tb);
276
277 // finally convert to filtering timebase
278 254904 frame->pts = av_rescale_q(frame->pts, tb, tb_filter);
279 254904 frame->duration = frame->nb_samples;
280 254904 frame->time_base = tb_filter;
281 254904 }
282
283 137697 static int64_t video_duration_estimate(const DecoderPriv *dp, const AVFrame *frame)
284 {
285 137697 const int ts_unreliable = dp->flags & DECODER_FLAG_TS_UNRELIABLE;
286 137697 const int fr_forced = dp->flags & DECODER_FLAG_FRAMERATE_FORCED;
287 137697 int64_t codec_duration = 0;
288 // difference between this and last frame's timestamps
289 137697 const int64_t ts_diff =
290
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 137697 (frame->pts != AV_NOPTS_VALUE && dp->last_frame_pts != AV_NOPTS_VALUE) ?
291
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 275394 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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 137697 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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 137697 if (fr_forced ||
305
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 137302 (frame->duration > 0 && !ts_unreliable && !duration_unreliable))
306 101738 return frame->duration;
307
308
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 35959 if (dp->dec_ctx->framerate.den && dp->dec_ctx->framerate.num) {
309 5383 int fields = frame->repeat_pict + 2;
310 5383 AVRational field_rate = av_mul_q(dp->dec_ctx->framerate,
311 5383 (AVRational){ 2, 1 });
312 5383 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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 35959 if (codec_duration > 0 && ts_unreliable)
318 5343 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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 30616 if (ts_diff > 0)
323 30099 return ts_diff;
324
325 // try frame/codec duration
326
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 517 if (frame->duration > 0)
327 447 return frame->duration;
328
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 70 if (codec_duration > 0)
329 1 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 137697 static int video_frame_process(DecoderPriv *dp, AVFrame *frame,
386 unsigned *outputs_mask)
387 {
388 #if FFMPEG_OPT_TOP
389
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 137697 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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 137697 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 137697 frame->pts = frame->best_effort_timestamp;
402
403 // forced fixed framerate
404
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 137697 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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 137697 if (frame->pts == AV_NOPTS_VALUE)
412
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 67748 frame->pts = dp->last_frame_pts == AV_NOPTS_VALUE ? 0 :
413 33594 dp->last_frame_pts + dp->last_frame_duration_est;
414
415 // update timestamp history
416 137697 dp->last_frame_duration_est = video_duration_estimate(dp, frame);
417 137697 dp->last_frame_pts = frame->pts;
418 137697 dp->last_frame_tb = frame->time_base;
419
420
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 137697 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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 137697 if (dp->sar_override.num)
437 13530 frame->sample_aspect_ratio = dp->sar_override;
438
439
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 137697 if (dp->apply_cropping) {
440 // lavfi does not require aligned frame data
441 137697 int ret = av_frame_apply_cropping(frame, AV_FRAME_CROP_UNALIGNED);
442
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 137697 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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 137697 if (frame->opaque)
449 610 *outputs_mask = (uintptr_t)frame->opaque;
450
451 137697 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
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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
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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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 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 376302 static int packet_decode(DecoderPriv *dp, AVPacket *pkt, AVFrame *frame)
698 {
699 376302 AVCodecContext *dec = dp->dec_ctx;
700 376302 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 373648 times.
 376302 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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 373648 if (pkt && pkt->size == 0)
710 1480 return 0;
711
712
4/4
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✓ Branch 2 taken 58508 times.
✓ Branch 3 taken 310371 times.
 372168 if (pkt && (dp->flags & DECODER_FLAG_TS_UNRELIABLE)) {
713 58508 pkt->pts = AV_NOPTS_VALUE;
714 58508 pkt->dts = AV_NOPTS_VALUE;
715 }
716
717
2/2
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✓ Branch 1 taken 3289 times.
 372168 if (pkt) {
718 368879 FrameData *fd = packet_data(pkt);
719
1/2
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✓ Branch 1 taken 368879 times.
 368879 if (!fd)
720 ✗ return AVERROR(ENOMEM);
721 368879 fd->wallclock[LATENCY_PROBE_DEC_PRE] = av_gettime_relative();
722 }
723
724 372168 ret = avcodec_send_packet(dec, pkt);
725
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 372168 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 400 times.
 400 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.
 400 av_log(dp, AV_LOG_ERROR, "Error submitting %s to decoder: %s\n",
734 400 pkt ? "packet" : "EOF", av_err2str(ret));
735
736
1/2
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 400 if (ret != AVERROR_EOF) {
737 400 dp->dec.decode_errors++;
738
1/2
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✗ Branch 1 not taken.
 400 if (!exit_on_error)
739 400 ret = 0;
740 }
741
742 400 return ret;
743 }
744
745 389175 while (1) {
746 FrameData *fd;
747 760943 unsigned outputs_mask = 1;
748
749 760943 av_frame_unref(frame);
750
751 760943 update_benchmark(NULL);
752 760943 ret = avcodec_receive_frame(dec, frame);
753 760943 update_benchmark("decode_%s %s", type_desc, dp->parent_name);
754
755
2/2
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✓ Branch 1 taken 395895 times.
 760943 if (ret == AVERROR(EAGAIN)) {
756
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 365048 av_assert0(pkt); // should never happen during flushing
757 371768 return 0;
758
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✓ Branch 1 taken 392607 times.
 395895 } else if (ret == AVERROR_EOF) {
759 3288 return ret;
760
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 392607 } else if (ret < 0) {
761 6 av_log(dp, AV_LOG_ERROR, "Decoding error: %s\n", av_err2str(ret));
762 6 dp->dec.decode_errors++;
763
764
1/2
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 6 if (exit_on_error)
765 ✗ return ret;
766
767 6 continue;
768 }
769
770
3/4
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 392601 if (frame->decode_error_flags || (frame->flags & AV_FRAME_FLAG_CORRUPT)) {
771
1/2
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 37 av_log(dp, exit_on_error ? AV_LOG_FATAL : AV_LOG_WARNING,
772 "corrupt decoded frame\n");
773
1/2
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✓ Branch 1 taken 37 times.
 37 if (exit_on_error)
774 ✗ return AVERROR_INVALIDDATA;
775 }
776
777 392601 fd = frame_data(frame);
778
1/2
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✓ Branch 1 taken 392601 times.
 392601 if (!fd) {
779 ✗ av_frame_unref(frame);
780 ✗ return AVERROR(ENOMEM);
781 }
782 392601 fd->dec.pts = frame->pts;
783 392601 fd->dec.tb = dec->pkt_timebase;
784 392601 fd->dec.frame_num = dec->frame_num - 1;
785 392601 fd->bits_per_raw_sample = dec->bits_per_raw_sample;
786
787 392601 fd->wallclock[LATENCY_PROBE_DEC_POST] = av_gettime_relative();
788
789 392601 frame->time_base = dec->pkt_timebase;
790
791
2/2
✓ Branch 0 taken 254904 times.
✓ Branch 1 taken 137697 times.
 392601 if (dec->codec_type == AVMEDIA_TYPE_AUDIO) {
792 254904 dp->dec.samples_decoded += frame->nb_samples;
793
794 254904 audio_ts_process(dp, frame);
795 } else {
796 137697 ret = video_frame_process(dp, frame, &outputs_mask);
797
1/2
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✓ Branch 1 taken 137697 times.
 137697 if (ret < 0) {
798 ✗ av_log(dp, AV_LOG_FATAL,
799 "Error while processing the decoded data\n");
800 ✗ return ret;
801 }
802 }
803
804 392601 dp->dec.frames_decoded++;
805
806
2/2
✓ Branch 0 taken 392601 times.
✓ Branch 1 taken 389169 times.
 781770 for (int i = 0; i < stdc_count_ones(outputs_mask); i++) {
807 392601 AVFrame *to_send = frame;
808 int pos;
809
810
1/2
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 392601 av_assert0(outputs_mask);
811
1/2
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✗ Branch 1 not taken.
 392601 pos = stdc_trailing_zeros(outputs_mask);
812 392601 outputs_mask &= ~(1U << pos);
813
814 // this is not the last output and sch_dec_send() consumes the frame
815 // given to it, so make a temporary reference
816
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 392601 times.
 392601 if (outputs_mask) {
817 ✗ to_send = dp->frame_tmp_ref;
818 ✗ ret = av_frame_ref(to_send, frame);
819 ✗ if (ret < 0)
820 ✗ return ret;
821 }
822
823 392601 ret = sch_dec_send(dp->sch, dp->sch_idx, pos, to_send);
824
2/2
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✓ Branch 1 taken 389169 times.
 392601 if (ret < 0) {
825 3432 av_frame_unref(to_send);
826
1/2
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✓ Branch 1 taken 3432 times.
 3432 return ret == AVERROR_EOF ? AVERROR_EXIT : ret;
827 }
828 }
829 }
830 }
831
832 static int dec_open(DecoderPriv *dp, AVDictionary **dec_opts,
833 const DecoderOpts *o, AVFrame *param_out);
834
835 1 static int dec_standalone_open(DecoderPriv *dp, const AVPacket *pkt)
836 {
837 DecoderOpts o;
838 const FrameData *fd;
839 char name[16];
840
841
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 1 times.
 1 if (!pkt->opaque_ref)
842 ✗ return AVERROR_BUG;
843 1 fd = (FrameData *)pkt->opaque_ref->data;
844
845
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 1 times.
 1 if (!fd->par_enc)
846 ✗ return AVERROR_BUG;
847
848 1 memset(&o, 0, sizeof(o));
849
850 1 o.par = fd->par_enc;
851 1 o.time_base = pkt->time_base;
852
853 1 o.codec = dp->standalone_init.codec;
854
1/2
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✗ Branch 1 not taken.
 1 if (!o.codec)
855 1 o.codec = avcodec_find_decoder(o.par->codec_id);
856
1/2
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✓ Branch 1 taken 1 times.
 1 if (!o.codec) {
857 ✗ const AVCodecDescriptor *desc = avcodec_descriptor_get(o.par->codec_id);
858
859 ✗ av_log(dp, AV_LOG_ERROR, "Cannot find a decoder for codec ID '%s'\n",
860 desc ? desc->name : "?");
861 ✗ return AVERROR_DECODER_NOT_FOUND;
862 }
863
864 1 snprintf(name, sizeof(name), "dec%d", dp->index);
865 1 o.name = name;
866
867 1 return dec_open(dp, &dp->standalone_init.opts, &o, NULL);
868 }
869
870 6754 static void dec_thread_set_name(const DecoderPriv *dp)
871 {
872 6754 char name[16] = "dec";
873
874
2/2
✓ Branch 0 taken 1 times.
✓ Branch 1 taken 6753 times.
 6754 if (dp->index >= 0)
875 1 av_strlcatf(name, sizeof(name), "%d", dp->index);
876
1/2
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✗ Branch 1 not taken.
 6753 else if (dp->parent_name)
877 6753 av_strlcat(name, dp->parent_name, sizeof(name));
878
879
2/2
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✓ Branch 1 taken 1 times.
 6754 if (dp->dec_ctx)
880 6753 av_strlcatf(name, sizeof(name), ":%s", dp->dec_ctx->codec->name);
881
882 6754 ff_thread_setname(name);
883 6754 }
884
885 6754 static void dec_thread_uninit(DecThreadContext *dt)
886 {
887 6754 av_packet_free(&dt->pkt);
888 6754 av_frame_free(&dt->frame);
889
890 6754 memset(dt, 0, sizeof(*dt));
891 6754 }
892
893 6754 static int dec_thread_init(DecThreadContext *dt)
894 {
895 6754 memset(dt, 0, sizeof(*dt));
896
897 6754 dt->frame = av_frame_alloc();
898
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 6754 times.
 6754 if (!dt->frame)
899 ✗ goto fail;
900
901 6754 dt->pkt = av_packet_alloc();
902
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 6754 times.
 6754 if (!dt->pkt)
903 ✗ goto fail;
904
905 6754 return 0;
906
907 ✗ fail:
908 ✗ dec_thread_uninit(dt);
909 ✗ return AVERROR(ENOMEM);
910 }
911
912 6754 static int decoder_thread(void *arg)
913 {
914 6754 DecoderPriv *dp = arg;
915 DecThreadContext dt;
916 6754 int ret = 0, input_status = 0;
917
918 6754 ret = dec_thread_init(&dt);
919
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 6754 times.
 6754 if (ret < 0)
920 ✗ goto finish;
921
922 6754 dec_thread_set_name(dp);
923
924
1/2
✓ Branch 0 taken 376302 times.
✗ Branch 1 not taken.
 376302 while (!input_status) {
925 int flush_buffers, have_data;
926
927 376302 input_status = sch_dec_receive(dp->sch, dp->sch_idx, dt.pkt);
928
2/2
✓ Branch 0 taken 372979 times.
✓ Branch 1 taken 3323 times.
 749281 have_data = input_status >= 0 &&
929
3/4
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✓ Branch 1 taken 372021 times.
✓ Branch 2 taken 958 times.
✗ Branch 3 not taken.
 372979 (dt.pkt->buf || dt.pkt->side_data_elems ||
930
2/2
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✓ Branch 1 taken 948 times.
 958 (intptr_t)dt.pkt->opaque == PKT_OPAQUE_SUB_HEARTBEAT ||
931
2/2
✓ Branch 0 taken 4 times.
✓ Branch 1 taken 6 times.
 10 (intptr_t)dt.pkt->opaque == PKT_OPAQUE_FIX_SUB_DURATION);
932
4/4
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✓ Branch 1 taken 3323 times.
✓ Branch 2 taken 6 times.
✓ Branch 3 taken 372973 times.
 376302 flush_buffers = input_status >= 0 && !have_data;
933
2/2
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✓ Branch 1 taken 372973 times.
 376302 if (!have_data)
934
2/2
✓ Branch 0 taken 6 times.
✓ Branch 1 taken 3323 times.
 3329 av_log(dp, AV_LOG_VERBOSE, "Decoder thread received %s packet\n",
935 flush_buffers ? "flush" : "EOF");
936
937 // this is a standalone decoder that has not been initialized yet
938
2/2
✓ Branch 0 taken 1 times.
✓ Branch 1 taken 376301 times.
 376302 if (!dp->dec_ctx) {
939
1/2
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✓ Branch 1 taken 1 times.
 1 if (flush_buffers)
940 ✗ continue;
941
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 1 times.
 1 if (input_status < 0) {
942 ✗ av_log(dp, AV_LOG_ERROR,
943 "Cannot initialize a standalone decoder\n");
944 ✗ ret = input_status;
945 ✗ goto finish;
946 }
947
948 1 ret = dec_standalone_open(dp, dt.pkt);
949
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 1 times.
 1 if (ret < 0)
950 ✗ goto finish;
951 }
952
953
2/2
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✓ Branch 1 taken 3329 times.
 376302 ret = packet_decode(dp, have_data ? dt.pkt : NULL, dt.frame);
954
955 376302 av_packet_unref(dt.pkt);
956 376302 av_frame_unref(dt.frame);
957
958 // AVERROR_EOF - EOF from the decoder
959 // AVERROR_EXIT - EOF from the scheduler
960 // we treat them differently when flushing
961
2/2
✓ Branch 0 taken 3432 times.
✓ Branch 1 taken 372870 times.
 376302 if (ret == AVERROR_EXIT) {
962 3432 ret = AVERROR_EOF;
963 3432 flush_buffers = 0;
964 }
965
966
2/2
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✓ Branch 1 taken 369542 times.
 376302 if (ret == AVERROR_EOF) {
967
2/2
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✓ Branch 1 taken 6754 times.
 6760 av_log(dp, AV_LOG_VERBOSE, "Decoder returned EOF, %s\n",
968 flush_buffers ? "resetting" : "finishing");
969
970
2/2
✓ Branch 0 taken 6754 times.
✓ Branch 1 taken 6 times.
 6760 if (!flush_buffers)
971 6754 break;
972
973 /* report last frame duration to the scheduler */
974
2/2
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✓ Branch 1 taken 3 times.
 6 if (dp->dec_ctx->codec_type == AVMEDIA_TYPE_AUDIO) {
975 3 dt.pkt->pts = dp->last_frame_pts + dp->last_frame_duration_est;
976 3 dt.pkt->time_base = dp->last_frame_tb;
977 }
978
979 6 avcodec_flush_buffers(dp->dec_ctx);
980
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 369542 } else if (ret < 0) {
981 ✗ av_log(dp, AV_LOG_ERROR, "Error processing packet in decoder: %s\n",
982 ✗ av_err2str(ret));
983 ✗ break;
984 }
985 }
986
987 // EOF is normal thread termination
988
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 6754 if (ret == AVERROR_EOF)
989 6754 ret = 0;
990
991 // on success send EOF timestamp to our downstreams
992
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 6754 if (ret >= 0) {
993 float err_rate;
994
995 6754 av_frame_unref(dt.frame);
996
997 6754 dt.frame->opaque = (void*)(intptr_t)FRAME_OPAQUE_EOF;
998
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 6754 dt.frame->pts = dp->last_frame_pts == AV_NOPTS_VALUE ? AV_NOPTS_VALUE :
999 6711 dp->last_frame_pts + dp->last_frame_duration_est;
1000 6754 dt.frame->time_base = dp->last_frame_tb;
1001
1002 6754 ret = sch_dec_send(dp->sch, dp->sch_idx, 0, dt.frame);
1003
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 6754 if (ret < 0 && ret != AVERROR_EOF) {
1004 ✗ av_log(dp, AV_LOG_FATAL,
1005 ✗ "Error signalling EOF timestamp: %s\n", av_err2str(ret));
1006 ✗ goto finish;
1007 }
1008 6754 ret = 0;
1009
1010
2/2
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 3 err_rate = (dp->dec.frames_decoded || dp->dec.decode_errors) ?
1011
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 6757 dp->dec.decode_errors / (dp->dec.frames_decoded + dp->dec.decode_errors) : 0.f;
1012
2/2
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 6754 if (err_rate > max_error_rate) {
1013 1 av_log(dp, AV_LOG_FATAL, "Decode error rate %g exceeds maximum %g\n",
1014 err_rate, max_error_rate);
1015 1 ret = FFMPEG_ERROR_RATE_EXCEEDED;
1016
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 6753 } else if (err_rate)
1017 1 av_log(dp, AV_LOG_VERBOSE, "Decode error rate %g\n", err_rate);
1018 }
1019
1020 6752 finish:
1021 6754 dec_thread_uninit(&dt);
1022
1023 6754 return ret;
1024 }
1025
1026 5518 int dec_request_view(Decoder *d, const ViewSpecifier *vs,
1027 SchedulerNode *src)
1028 {
1029 5518 DecoderPriv *dp = dp_from_dec(d);
1030 5518 unsigned out_idx = 0;
1031 int ret;
1032
1033
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 5518 if (dp->multiview_user_config) {
1034 ✗ if (!vs || vs->type == VIEW_SPECIFIER_TYPE_NONE) {
1035 ✗ *src = SCH_DEC_OUT(dp->sch_idx, 0);
1036 ✗ return 0;
1037 }
1038
1039 ✗ av_log(dp, AV_LOG_ERROR,
1040 "Manually selecting views with -view_ids cannot be combined "
1041 "with view selection via stream specifiers. It is strongly "
1042 "recommended you always use stream specifiers only.\n");
1043 ✗ return AVERROR(EINVAL);
1044 }
1045
1046 // when multiview_user_config is not set, NONE specifier is treated
1047 // as requesting the base view
1048
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 5518 vs = (vs && vs->type != VIEW_SPECIFIER_TYPE_NONE) ? vs :
1049 5505 &(ViewSpecifier){ .type = VIEW_SPECIFIER_TYPE_IDX, .val = 0 };
1050
1051 // check if the specifier matches an already-existing one
1052
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 5524 for (int i = 0; i < dp->nb_views_requested; i++) {
1053 10 const ViewSpecifier *vs1 = &dp->views_requested[i].vs;
1054
1055
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 10 if (vs->type == vs1->type &&
1056
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 10 (vs->type == VIEW_SPECIFIER_TYPE_ALL || vs->val == vs1->val)) {
1057 4 *src = SCH_DEC_OUT(dp->sch_idx, dp->views_requested[i].out_idx);
1058 4 return 0;
1059 }
1060 }
1061
1062 // we use a bitmask to map view IDs to decoder outputs, which
1063 // limits the number of outputs allowed
1064
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 5514 if (dp->nb_views_requested >= sizeof(dp->view_map[0].out_mask) * 8) {
1065 ✗ av_log(dp, AV_LOG_ERROR, "Too many view specifiers\n");
1066 ✗ return AVERROR(ENOSYS);
1067 }
1068
1069 5514 ret = GROW_ARRAY(dp->views_requested, dp->nb_views_requested);
1070
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 5514 if (ret < 0)
1071 ✗ return ret;
1072
1073
2/2
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 5514 if (dp->nb_views_requested > 1) {
1074 6 ret = sch_add_dec_output(dp->sch, dp->sch_idx);
1075
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 6 if (ret < 0)
1076 ✗ return ret;
1077 6 out_idx = ret;
1078 }
1079
1080 5514 dp->views_requested[dp->nb_views_requested - 1].out_idx = out_idx;
1081 5514 dp->views_requested[dp->nb_views_requested - 1].vs = *vs;
1082
1083 5514 *src = SCH_DEC_OUT(dp->sch_idx,
1084 dp->views_requested[dp->nb_views_requested - 1].out_idx);
1085
1086 5514 return 0;
1087 }
1088
1089 992 static int multiview_setup(DecoderPriv *dp, AVCodecContext *dec_ctx)
1090 {
1091 992 unsigned views_wanted = 0;
1092
1093 unsigned nb_view_ids_av, nb_view_ids;
1094 992 unsigned *view_ids_av = NULL, *view_pos_av = NULL;
1095 992 int *view_ids = NULL;
1096 int ret;
1097
1098 // no views/only base view were requested - do nothing
1099
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 992 if (!dp->nb_views_requested ||
1100
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 992 (dp->nb_views_requested == 1 &&
1101
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 983 dp->views_requested[0].vs.type == VIEW_SPECIFIER_TYPE_IDX &&
1102
1/2
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✗ Branch 1 not taken.
 982 dp->views_requested[0].vs.val == 0))
1103 982 return 0;
1104
1105 10 av_freep(&dp->view_map);
1106 10 dp->nb_view_map = 0;
1107
1108 // retrieve views available in current CVS
1109 10 ret = av_opt_get_array_size(dec_ctx, "view_ids_available",
1110 AV_OPT_SEARCH_CHILDREN, &nb_view_ids_av);
1111
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 10 if (ret < 0) {
1112 ✗ av_log(dp, AV_LOG_ERROR,
1113 "Multiview decoding requested, but decoder '%s' does not "
1114 ✗ "support it\n", dec_ctx->codec->name);
1115 ✗ return AVERROR(ENOSYS);
1116 }
1117
1118
2/2
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 10 if (nb_view_ids_av) {
1119 unsigned nb_view_pos_av;
1120
1121
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 8 if (nb_view_ids_av >= sizeof(views_wanted) * 8) {
1122 ✗ av_log(dp, AV_LOG_ERROR, "Too many views in video: %u\n", nb_view_ids_av);
1123 ✗ ret = AVERROR(ENOSYS);
1124 ✗ goto fail;
1125 }
1126
1127 8 view_ids_av = av_calloc(nb_view_ids_av, sizeof(*view_ids_av));
1128
1/2
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✓ Branch 1 taken 8 times.
 8 if (!view_ids_av) {
1129 ✗ ret = AVERROR(ENOMEM);
1130 ✗ goto fail;
1131 }
1132
1133 8 ret = av_opt_get_array(dec_ctx, "view_ids_available",
1134 AV_OPT_SEARCH_CHILDREN, 0, nb_view_ids_av,
1135 AV_OPT_TYPE_UINT, view_ids_av);
1136
1/2
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 8 if (ret < 0)
1137 ✗ goto fail;
1138
1139 8 ret = av_opt_get_array_size(dec_ctx, "view_pos_available",
1140 AV_OPT_SEARCH_CHILDREN, &nb_view_pos_av);
1141
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 8 if (ret >= 0 && nb_view_pos_av == nb_view_ids_av) {
1142 1 view_pos_av = av_calloc(nb_view_ids_av, sizeof(*view_pos_av));
1143
1/2
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 1 if (!view_pos_av) {
1144 ✗ ret = AVERROR(ENOMEM);
1145 ✗ goto fail;
1146 }
1147
1148 1 ret = av_opt_get_array(dec_ctx, "view_pos_available",
1149 AV_OPT_SEARCH_CHILDREN, 0, nb_view_ids_av,
1150 AV_OPT_TYPE_UINT, view_pos_av);
1151
1/2
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 1 if (ret < 0)
1152 ✗ goto fail;
1153 }
1154 } else {
1155 // assume there is a single view with ID=0
1156 2 nb_view_ids_av = 1;
1157 2 view_ids_av = av_calloc(nb_view_ids_av, sizeof(*view_ids_av));
1158 2 view_pos_av = av_calloc(nb_view_ids_av, sizeof(*view_pos_av));
1159
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 2 if (!view_ids_av || !view_pos_av) {
1160 ✗ ret = AVERROR(ENOMEM);
1161 ✗ goto fail;
1162 }
1163 2 view_pos_av[0] = AV_STEREO3D_VIEW_UNSPEC;
1164 }
1165
1166 10 dp->view_map = av_calloc(nb_view_ids_av, sizeof(*dp->view_map));
1167
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 10 if (!dp->view_map) {
1168 ✗ ret = AVERROR(ENOMEM);
1169 ✗ goto fail;
1170 }
1171 10 dp->nb_view_map = nb_view_ids_av;
1172
1173
2/2
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 28 for (int i = 0; i < dp->nb_view_map; i++)
1174 18 dp->view_map[i].id = view_ids_av[i];
1175
1176 // figure out which views should go to which output
1177
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 29 for (int i = 0; i < dp->nb_views_requested; i++) {
1178 19 const ViewSpecifier *vs = &dp->views_requested[i].vs;
1179
1180
4/5
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 19 switch (vs->type) {
1181 8 case VIEW_SPECIFIER_TYPE_IDX:
1182
2/2
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✓ Branch 1 taken 6 times.
 8 if (vs->val >= nb_view_ids_av) {
1183 2 av_log(dp, exit_on_error ? AV_LOG_ERROR : AV_LOG_WARNING,
1184 "View with index %u requested, but only %u views available "
1185 "in current video sequence (more views may or may not be "
1186 "available in later sequences).\n",
1187
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 2 vs->val, nb_view_ids_av);
1188
1/2
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✓ Branch 1 taken 2 times.
 2 if (exit_on_error) {
1189 ✗ ret = AVERROR(EINVAL);
1190 ✗ goto fail;
1191 }
1192
1193 2 continue;
1194 }
1195 6 views_wanted |= 1U << vs->val;
1196 6 dp->view_map[vs->val].out_mask |= 1ULL << i;
1197
1198 6 break;
1199 8 case VIEW_SPECIFIER_TYPE_ID: {
1200 8 int view_idx = -1;
1201
1202
1/2
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 12 for (unsigned j = 0; j < nb_view_ids_av; j++) {
1203
2/2
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 12 if (view_ids_av[j] == vs->val) {
1204 8 view_idx = j;
1205 8 break;
1206 }
1207 }
1208
1/2
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 8 if (view_idx < 0) {
1209 ✗ av_log(dp, exit_on_error ? AV_LOG_ERROR : AV_LOG_WARNING,
1210 "View with ID %u requested, but is not available "
1211 ✗ "in the video sequence\n", vs->val);
1212 ✗ if (exit_on_error) {
1213 ✗ ret = AVERROR(EINVAL);
1214 ✗ goto fail;
1215 }
1216
1217 ✗ continue;
1218 }
1219 8 views_wanted |= 1U << view_idx;
1220 8 dp->view_map[view_idx].out_mask |= 1ULL << i;
1221
1222 8 break;
1223 }
1224 2 case VIEW_SPECIFIER_TYPE_POS: {
1225 2 int view_idx = -1;
1226
1227
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 3 for (unsigned j = 0; view_pos_av && j < nb_view_ids_av; j++) {
1228
2/2
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 3 if (view_pos_av[j] == vs->val) {
1229 2 view_idx = j;
1230 2 break;
1231 }
1232 }
1233
1/2
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 2 if (view_idx < 0) {
1234 ✗ av_log(dp, exit_on_error ? AV_LOG_ERROR : AV_LOG_WARNING,
1235 "View position '%s' requested, but is not available "
1236 ✗ "in the video sequence\n", av_stereo3d_view_name(vs->val));
1237 ✗ if (exit_on_error) {
1238 ✗ ret = AVERROR(EINVAL);
1239 ✗ goto fail;
1240 }
1241
1242 ✗ continue;
1243 }
1244 2 views_wanted |= 1U << view_idx;
1245 2 dp->view_map[view_idx].out_mask |= 1ULL << i;
1246
1247 2 break;
1248 }
1249 1 case VIEW_SPECIFIER_TYPE_ALL:
1250 1 views_wanted |= (1U << nb_view_ids_av) - 1;
1251
1252
2/2
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 3 for (int j = 0; j < dp->nb_view_map; j++)
1253 2 dp->view_map[j].out_mask |= 1ULL << i;
1254
1255 1 break;
1256 }
1257 }
1258
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 10 if (!views_wanted) {
1259 ✗ av_log(dp, AV_LOG_ERROR, "No views were selected for decoding\n");
1260 ✗ ret = AVERROR(EINVAL);
1261 ✗ goto fail;
1262 }
1263
1264 // signal to decoder which views we want
1265 10 nb_view_ids = stdc_count_ones(views_wanted);
1266 10 view_ids = av_malloc_array(nb_view_ids, sizeof(*view_ids));
1267
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 10 if (!view_ids) {
1268 ✗ ret = AVERROR(ENOMEM);
1269 ✗ goto fail;
1270 }
1271
1272
2/2
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 28 for (unsigned i = 0; i < nb_view_ids; i++) {
1273 int pos;
1274
1275
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 18 av_assert0(views_wanted);
1276
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 18 pos = stdc_trailing_zeros(views_wanted);
1277 18 views_wanted &= ~(1U << pos);
1278
1279 18 view_ids[i] = view_ids_av[pos];
1280 }
1281
1282 // unset view_ids in case we set it earlier
1283 10 av_opt_set(dec_ctx, "view_ids", NULL, AV_OPT_SEARCH_CHILDREN);
1284
1285 10 ret = av_opt_set_array(dec_ctx, "view_ids", AV_OPT_SEARCH_CHILDREN,
1286 0, nb_view_ids, AV_OPT_TYPE_INT, view_ids);
1287
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 10 if (ret < 0)
1288 ✗ goto fail;
1289
1290
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✓ Branch 1 taken 7 times.
 10 if (!dp->frame_tmp_ref) {
1291 7 dp->frame_tmp_ref = av_frame_alloc();
1292
1/2
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✗ Branch 1 not taken.
 7 if (!dp->frame_tmp_ref) {
1293 ✗ ret = AVERROR(ENOMEM);
1294 ✗ goto fail;
1295 }
1296 }
1297
1298 10 fail:
1299 10 av_freep(&view_ids_av);
1300 10 av_freep(&view_pos_av);
1301 10 av_freep(&view_ids);
1302
1303 10 return ret;
1304 }
1305
1306 6754 static void multiview_check_manual(DecoderPriv *dp, const AVDictionary *dec_opts)
1307 {
1308
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✓ Branch 2 taken 6754 times.
 6754 if (av_dict_get(dec_opts, "view_ids", NULL, 0)) {
1309 ✗ av_log(dp, AV_LOG_WARNING, "Manually selecting views with -view_ids "
1310 "is not recommended, use view specifiers instead\n");
1311 ✗ dp->multiview_user_config = 1;
1312 }
1313 6754 }
1314
1315 992 static enum AVPixelFormat get_format(AVCodecContext *s, const enum AVPixelFormat *pix_fmts)
1316 {
1317 992 DecoderPriv *dp = s->opaque;
1318 const enum AVPixelFormat *p;
1319 int ret;
1320
1321 992 ret = multiview_setup(dp, s);
1322
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 992 if (ret < 0) {
1323 ✗ av_log(dp, AV_LOG_ERROR, "Error setting up multiview decoding: %s\n",
1324 ✗ av_err2str(ret));
1325 ✗ return AV_PIX_FMT_NONE;
1326 }
1327
1328
1/2
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 2701 for (p = pix_fmts; *p != AV_PIX_FMT_NONE; p++) {
1329 2701 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(*p);
1330 2701 const AVCodecHWConfig *config = NULL;
1331
1332
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 2701 if (!(desc->flags & AV_PIX_FMT_FLAG_HWACCEL))
1333 992 break;
1334
1335
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 1709 if (dp->hwaccel_id == HWACCEL_GENERIC ||
1336
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 1709 dp->hwaccel_id == HWACCEL_AUTO) {
1337 ✗ for (int i = 0;; i++) {
1338 ✗ config = avcodec_get_hw_config(s->codec, i);
1339 ✗ if (!config)
1340 ✗ break;
1341 ✗ if (!(config->methods &
1342 AV_CODEC_HW_CONFIG_METHOD_HW_DEVICE_CTX))
1343 ✗ continue;
1344 ✗ if (config->pix_fmt == *p)
1345 ✗ break;
1346 }
1347 }
1348
1/4
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 1709 if (config && config->device_type == dp->hwaccel_device_type) {
1349 ✗ dp->hwaccel_pix_fmt = *p;
1350 ✗ break;
1351 }
1352 }
1353
1354 992 return *p;
1355 }
1356
1357 367781 static int get_buffer(AVCodecContext *dec_ctx, AVFrame *frame, int flags)
1358 {
1359 367781 DecoderPriv *dp = dec_ctx->opaque;
1360
1361 // for multiview video, store the output mask in frame opaque
1362
2/2
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 367781 if (dp->nb_view_map) {
1363 613 const AVFrameSideData *sd = av_frame_get_side_data(frame, AV_FRAME_DATA_VIEW_ID);
1364
2/2
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 613 int view_id = sd ? *(int*)sd->data : 0;
1365
1366
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 890 for (int i = 0; i < dp->nb_view_map; i++) {
1367
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 890 if (dp->view_map[i].id == view_id) {
1368 613 frame->opaque = (void*)dp->view_map[i].out_mask;
1369 613 break;
1370 }
1371 }
1372 }
1373
1374 367781 return avcodec_default_get_buffer2(dec_ctx, frame, flags);
1375 }
1376
1377 6754 static HWDevice *hw_device_match_by_codec(const AVCodec *codec)
1378 {
1379 const AVCodecHWConfig *config;
1380 HWDevice *dev;
1381 6754 for (int i = 0;; i++) {
1382 8454 config = avcodec_get_hw_config(codec, i);
1383
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 8454 if (!config)
1384 6754 return NULL;
1385
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 1700 if (!(config->methods & AV_CODEC_HW_CONFIG_METHOD_HW_DEVICE_CTX))
1386 ✗ continue;
1387 1700 dev = hw_device_get_by_type(config->device_type);
1388
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 1700 if (dev)
1389 ✗ return dev;
1390 }
1391 }
1392
1393 6754 static int hw_device_setup_for_decode(DecoderPriv *dp,
1394 const AVCodec *codec,
1395 const char *hwaccel_device)
1396 {
1397 const AVCodecHWConfig *config;
1398 enum AVHWDeviceType type;
1399 6754 HWDevice *dev = NULL;
1400 6754 int err, auto_device = 0;
1401
1402
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 6754 if (hwaccel_device) {
1403 ✗ dev = hw_device_get_by_name(hwaccel_device);
1404 ✗ if (!dev) {
1405 ✗ if (dp->hwaccel_id == HWACCEL_AUTO) {
1406 ✗ auto_device = 1;
1407 ✗ } else if (dp->hwaccel_id == HWACCEL_GENERIC) {
1408 ✗ type = dp->hwaccel_device_type;
1409 ✗ err = hw_device_init_from_type(type, hwaccel_device,
1410 &dev);
1411 } else {
1412 // This will be dealt with by API-specific initialisation
1413 // (using hwaccel_device), so nothing further needed here.
1414 ✗ return 0;
1415 }
1416 } else {
1417 ✗ if (dp->hwaccel_id == HWACCEL_AUTO) {
1418 ✗ dp->hwaccel_device_type = dev->type;
1419 ✗ } else if (dp->hwaccel_device_type != dev->type) {
1420 ✗ av_log(dp, AV_LOG_ERROR, "Invalid hwaccel device "
1421 "specified for decoder: device %s of type %s is not "
1422 ✗ "usable with hwaccel %s.\n", dev->name,
1423 ✗ av_hwdevice_get_type_name(dev->type),
1424 av_hwdevice_get_type_name(dp->hwaccel_device_type));
1425 ✗ return AVERROR(EINVAL);
1426 }
1427 }
1428 } else {
1429
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 6754 if (dp->hwaccel_id == HWACCEL_AUTO) {
1430 ✗ auto_device = 1;
1431
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 6754 } else if (dp->hwaccel_id == HWACCEL_GENERIC) {
1432 ✗ type = dp->hwaccel_device_type;
1433 ✗ dev = hw_device_get_by_type(type);
1434
1435 // When "-qsv_device device" is used, an internal QSV device named
1436 // as "__qsv_device" is created. Another QSV device is created too
1437 // if "-init_hw_device qsv=name:device" is used. There are 2 QSV devices
1438 // if both "-qsv_device device" and "-init_hw_device qsv=name:device"
1439 // are used, hw_device_get_by_type(AV_HWDEVICE_TYPE_QSV) returns NULL.
1440 // To keep back-compatibility with the removed ad-hoc libmfx setup code,
1441 // call hw_device_get_by_name("__qsv_device") to select the internal QSV
1442 // device.
1443 ✗ if (!dev && type == AV_HWDEVICE_TYPE_QSV)
1444 ✗ dev = hw_device_get_by_name("__qsv_device");
1445
1446 ✗ if (!dev)
1447 ✗ err = hw_device_init_from_type(type, NULL, &dev);
1448 } else {
1449 6754 dev = hw_device_match_by_codec(codec);
1450
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 6754 if (!dev) {
1451 // No device for this codec, but not using generic hwaccel
1452 // and therefore may well not need one - ignore.
1453 6754 return 0;
1454 }
1455 }
1456 }
1457
1458 ✗ if (auto_device) {
1459 ✗ if (!avcodec_get_hw_config(codec, 0)) {
1460 // Decoder does not support any hardware devices.
1461 ✗ return 0;
1462 }
1463 ✗ for (int i = 0; !dev; i++) {
1464 ✗ config = avcodec_get_hw_config(codec, i);
1465 ✗ if (!config)
1466 ✗ break;
1467 ✗ type = config->device_type;
1468 ✗ dev = hw_device_get_by_type(type);
1469 ✗ if (dev) {
1470 ✗ av_log(dp, AV_LOG_INFO, "Using auto "
1471 "hwaccel type %s with existing device %s.\n",
1472 ✗ av_hwdevice_get_type_name(type), dev->name);
1473 }
1474 }
1475 ✗ for (int i = 0; !dev; i++) {
1476 ✗ config = avcodec_get_hw_config(codec, i);
1477 ✗ if (!config)
1478 ✗ break;
1479 ✗ type = config->device_type;
1480 // Try to make a new device of this type.
1481 ✗ err = hw_device_init_from_type(type, hwaccel_device,
1482 &dev);
1483 ✗ if (err < 0) {
1484 // Can't make a device of this type.
1485 ✗ continue;
1486 }
1487 ✗ if (hwaccel_device) {
1488 ✗ av_log(dp, AV_LOG_INFO, "Using auto "
1489 "hwaccel type %s with new device created "
1490 "from %s.\n", av_hwdevice_get_type_name(type),
1491 hwaccel_device);
1492 } else {
1493 ✗ av_log(dp, AV_LOG_INFO, "Using auto "
1494 "hwaccel type %s with new default device.\n",
1495 av_hwdevice_get_type_name(type));
1496 }
1497 }
1498 ✗ if (dev) {
1499 ✗ dp->hwaccel_device_type = type;
1500 } else {
1501 ✗ av_log(dp, AV_LOG_INFO, "Auto hwaccel "
1502 "disabled: no device found.\n");
1503 ✗ dp->hwaccel_id = HWACCEL_NONE;
1504 ✗ return 0;
1505 }
1506 }
1507
1508 ✗ if (!dev) {
1509 ✗ av_log(dp, AV_LOG_ERROR, "No device available "
1510 "for decoder: device type %s needed for codec %s.\n",
1511 ✗ av_hwdevice_get_type_name(type), codec->name);
1512 ✗ return err;
1513 }
1514
1515 ✗ dp->dec_ctx->hw_device_ctx = av_buffer_ref(dev->device_ref);
1516 ✗ if (!dp->dec_ctx->hw_device_ctx)
1517 ✗ return AVERROR(ENOMEM);
1518
1519 ✗ return 0;
1520 }
1521
1522 6754 static int dec_open(DecoderPriv *dp, AVDictionary **dec_opts,
1523 const DecoderOpts *o, AVFrame *param_out)
1524 {
1525 6754 const AVCodec *codec = o->codec;
1526 int ret;
1527
1528 6754 dp->flags = o->flags;
1529 6754 dp->log_parent = o->log_parent;
1530
1531 6754 dp->dec.type = codec->type;
1532 6754 dp->framerate_in = o->framerate;
1533
1534 6754 dp->hwaccel_id = o->hwaccel_id;
1535 6754 dp->hwaccel_device_type = o->hwaccel_device_type;
1536 6754 dp->hwaccel_output_format = o->hwaccel_output_format;
1537
1538 6754 snprintf(dp->log_name, sizeof(dp->log_name), "dec:%s", codec->name);
1539
1540
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 6754 dp->parent_name = av_strdup(o->name ? o->name : "");
1541
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 6754 if (!dp->parent_name)
1542 ✗ return AVERROR(ENOMEM);
1543
1544
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 6754 if (codec->type == AVMEDIA_TYPE_SUBTITLE &&
1545
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 40 (dp->flags & DECODER_FLAG_FIX_SUB_DURATION)) {
1546
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 6 for (int i = 0; i < FF_ARRAY_ELEMS(dp->sub_prev); i++) {
1547 4 dp->sub_prev[i] = av_frame_alloc();
1548
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 4 if (!dp->sub_prev[i])
1549 ✗ return AVERROR(ENOMEM);
1550 }
1551 2 dp->sub_heartbeat = av_frame_alloc();
1552
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 2 if (!dp->sub_heartbeat)
1553 ✗ return AVERROR(ENOMEM);
1554 }
1555
1556 6754 dp->sar_override = o->par->sample_aspect_ratio;
1557
1558 6754 dp->dec_ctx = avcodec_alloc_context3(codec);
1559
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 6754 if (!dp->dec_ctx)
1560 ✗ return AVERROR(ENOMEM);
1561
1562 6754 ret = avcodec_parameters_to_context(dp->dec_ctx, o->par);
1563
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 6754 if (ret < 0) {
1564 ✗ av_log(dp, AV_LOG_ERROR, "Error initializing the decoder context.\n");
1565 ✗ return ret;
1566 }
1567
1568 6754 dp->dec_ctx->opaque = dp;
1569 6754 dp->dec_ctx->get_format = get_format;
1570 6754 dp->dec_ctx->get_buffer2 = get_buffer;
1571 6754 dp->dec_ctx->pkt_timebase = o->time_base;
1572
1573
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 6754 if (!av_dict_get(*dec_opts, "threads", NULL, 0))
1574 57 av_dict_set(dec_opts, "threads", "auto", 0);
1575
1576 6754 ret = hw_device_setup_for_decode(dp, codec, o->hwaccel_device);
1577
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 6754 if (ret < 0) {
1578 ✗ av_log(dp, AV_LOG_ERROR,
1579 "Hardware device setup failed for decoder: %s\n",
1580 ✗ av_err2str(ret));
1581 ✗ return ret;
1582 }
1583
1584 6754 ret = av_opt_set_dict2(dp->dec_ctx, dec_opts, AV_OPT_SEARCH_CHILDREN);
1585
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 6754 if (ret < 0) {
1586 ✗ av_log(dp, AV_LOG_ERROR, "Error applying decoder options: %s\n",
1587 ✗ av_err2str(ret));
1588 ✗ return ret;
1589 }
1590 6754 ret = check_avoptions(*dec_opts);
1591
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 6754 if (ret < 0)
1592 ✗ return ret;
1593
1594 6754 dp->dec_ctx->flags |= AV_CODEC_FLAG_COPY_OPAQUE;
1595
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 6754 if (o->flags & DECODER_FLAG_BITEXACT)
1596 78 dp->dec_ctx->flags |= AV_CODEC_FLAG_BITEXACT;
1597
1598 // we apply cropping outselves
1599 6754 dp->apply_cropping = dp->dec_ctx->apply_cropping;
1600 6754 dp->dec_ctx->apply_cropping = 0;
1601
1602
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 6754 if ((ret = avcodec_open2(dp->dec_ctx, codec, NULL)) < 0) {
1603 ✗ av_log(dp, AV_LOG_ERROR, "Error while opening decoder: %s\n",
1604 ✗ av_err2str(ret));
1605 ✗ return ret;
1606 }
1607
1608
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 6754 if (dp->dec_ctx->hw_device_ctx) {
1609 // Update decoder extra_hw_frames option to account for the
1610 // frames held in queues inside the ffmpeg utility. This is
1611 // called after avcodec_open2() because the user-set value of
1612 // extra_hw_frames becomes valid in there, and we need to add
1613 // this on top of it.
1614 ✗ int extra_frames = DEFAULT_FRAME_THREAD_QUEUE_SIZE;
1615 ✗ if (dp->dec_ctx->extra_hw_frames >= 0)
1616 ✗ dp->dec_ctx->extra_hw_frames += extra_frames;
1617 else
1618 ✗ dp->dec_ctx->extra_hw_frames = extra_frames;
1619 }
1620
1621 6754 dp->dec.subtitle_header = dp->dec_ctx->subtitle_header;
1622 6754 dp->dec.subtitle_header_size = dp->dec_ctx->subtitle_header_size;
1623
1624
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 6754 if (param_out) {
1625
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 6753 if (dp->dec_ctx->codec_type == AVMEDIA_TYPE_AUDIO) {
1626 1206 param_out->format = dp->dec_ctx->sample_fmt;
1627 1206 param_out->sample_rate = dp->dec_ctx->sample_rate;
1628
1629 1206 ret = av_channel_layout_copy(&param_out->ch_layout, &dp->dec_ctx->ch_layout);
1630
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 1206 if (ret < 0)
1631 ✗ return ret;
1632
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 5547 } else if (dp->dec_ctx->codec_type == AVMEDIA_TYPE_VIDEO) {
1633 5507 param_out->format = dp->dec_ctx->pix_fmt;
1634 5507 param_out->width = dp->dec_ctx->width;
1635 5507 param_out->height = dp->dec_ctx->height;
1636 5507 param_out->sample_aspect_ratio = dp->dec_ctx->sample_aspect_ratio;
1637 5507 param_out->colorspace = dp->dec_ctx->colorspace;
1638 5507 param_out->color_range = dp->dec_ctx->color_range;
1639 }
1640
1641 6753 param_out->time_base = dp->dec_ctx->pkt_timebase;
1642 }
1643
1644 6754 return 0;
1645 }
1646
1647 6753 int dec_init(Decoder **pdec, Scheduler *sch,
1648 AVDictionary **dec_opts, const DecoderOpts *o,
1649 AVFrame *param_out)
1650 {
1651 DecoderPriv *dp;
1652 int ret;
1653
1654 6753 *pdec = NULL;
1655
1656 6753 ret = dec_alloc(&dp, sch, !!(o->flags & DECODER_FLAG_SEND_END_TS));
1657
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 6753 if (ret < 0)
1658 ✗ return ret;
1659
1660 6753 multiview_check_manual(dp, *dec_opts);
1661
1662 6753 ret = dec_open(dp, dec_opts, o, param_out);
1663
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 6753 if (ret < 0)
1664 ✗ goto fail;
1665
1666 6753 *pdec = &dp->dec;
1667
1668 6753 return dp->sch_idx;
1669 ✗ fail:
1670 ✗ dec_free((Decoder**)&dp);
1671 ✗ return ret;
1672 }
1673
1674 1 int dec_create(const OptionsContext *o, const char *arg, Scheduler *sch)
1675 {
1676 DecoderPriv *dp;
1677
1678 OutputFile *of;
1679 OutputStream *ost;
1680 int of_index, ost_index;
1681 char *p;
1682
1683 unsigned enc_idx;
1684 int ret;
1685
1686 1 ret = dec_alloc(&dp, sch, 0);
1687
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 1 if (ret < 0)
1688 ✗ return ret;
1689
1690 1 dp->index = nb_decoders;
1691
1692 1 ret = GROW_ARRAY(decoders, nb_decoders);
1693
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 1 if (ret < 0) {
1694 ✗ dec_free((Decoder **)&dp);
1695 ✗ return ret;
1696 }
1697
1698 1 decoders[nb_decoders - 1] = (Decoder *)dp;
1699
1700 1 of_index = strtol(arg, &p, 0);
1701
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 1 if (of_index < 0 || of_index >= nb_output_files) {
1702 ✗ av_log(dp, AV_LOG_ERROR, "Invalid output file index '%d' in %s\n", of_index, arg);
1703 ✗ return AVERROR(EINVAL);
1704 }
1705 1 of = output_files[of_index];
1706
1707 1 ost_index = strtol(p + 1, NULL, 0);
1708
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 1 if (ost_index < 0 || ost_index >= of->nb_streams) {
1709 ✗ av_log(dp, AV_LOG_ERROR, "Invalid output stream index '%d' in %s\n", ost_index, arg);
1710 ✗ return AVERROR(EINVAL);
1711 }
1712 1 ost = of->streams[ost_index];
1713
1714
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 1 if (!ost->enc) {
1715 ✗ av_log(dp, AV_LOG_ERROR, "Output stream %s has no encoder\n", arg);
1716 ✗ return AVERROR(EINVAL);
1717 }
1718
1719 1 dp->dec.type = ost->type;
1720
1721 1 ret = enc_loopback(ost->enc);
1722
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 1 if (ret < 0)
1723 ✗ return ret;
1724 1 enc_idx = ret;
1725
1726 1 ret = sch_connect(sch, SCH_ENC(enc_idx), SCH_DEC_IN(dp->sch_idx));
1727
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 1 if (ret < 0)
1728 ✗ return ret;
1729
1730 1 ret = av_dict_copy(&dp->standalone_init.opts, o->g->codec_opts, 0);
1731
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 1 if (ret < 0)
1732 ✗ return ret;
1733
1734 1 multiview_check_manual(dp, dp->standalone_init.opts);
1735
1736
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 1 if (o->codec_names.nb_opt) {
1737 ✗ const char *name = o->codec_names.opt[o->codec_names.nb_opt - 1].u.str;
1738 ✗ dp->standalone_init.codec = avcodec_find_decoder_by_name(name);
1739 ✗ if (!dp->standalone_init.codec) {
1740 ✗ av_log(dp, AV_LOG_ERROR, "No such decoder: %s\n", name);
1741 ✗ return AVERROR_DECODER_NOT_FOUND;
1742 }
1743 }
1744
1745 1 return 0;
1746 }
1747
1748 1 int dec_filter_add(Decoder *d, InputFilter *ifilter, InputFilterOptions *opts,
1749 const ViewSpecifier *vs, SchedulerNode *src)
1750 {
1751 1 DecoderPriv *dp = dp_from_dec(d);
1752 char name[16];
1753
1754 1 snprintf(name, sizeof(name), "dec%d", dp->index);
1755 1 opts->name = av_strdup(name);
1756
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 1 if (!opts->name)
1757 ✗ return AVERROR(ENOMEM);
1758
1759 1 return dec_request_view(d, vs, src);
1760 }
1761