x86: af_volume: add SSE2/SSSE3/AVX-optimized s32 volume scaling
[libav.git] / avconv_filter.c
CommitLineData
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1/*
2 * avconv filter configuration
3 *
4 * This file is part of Libav.
5 *
6 * Libav is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * Libav is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with Libav; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
21#include "avconv.h"
22
23#include "libavfilter/avfilter.h"
24#include "libavfilter/avfiltergraph.h"
25
fe2147e9 26#include "libavutil/avassert.h"
a903f8f0 27#include "libavutil/channel_layout.h"
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28#include "libavutil/pixdesc.h"
29#include "libavutil/pixfmt.h"
30#include "libavutil/samplefmt.h"
31
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32/* Define a function for building a string containing a list of
33 * allowed formats. */
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34#define DEF_CHOOSE_FORMAT(type, var, supported_list, none, get_name, separator)\
35static char *choose_ ## var ## s(OutputStream *ost) \
36{ \
37 if (ost->st->codec->var != none) { \
38 get_name(ost->st->codec->var); \
39 return av_strdup(name); \
40 } else if (ost->enc->supported_list) { \
41 const type *p; \
42 AVIOContext *s = NULL; \
43 uint8_t *ret; \
44 int len; \
45 \
46 if (avio_open_dyn_buf(&s) < 0) \
5e3f9979 47 exit(1); \
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48 \
49 for (p = ost->enc->supported_list; *p != none; p++) { \
50 get_name(*p); \
51 avio_printf(s, "%s" separator, name); \
52 } \
53 len = avio_close_dyn_buf(s, &ret); \
54 ret[len - 1] = 0; \
55 return ret; \
56 } else \
57 return NULL; \
58}
59
716d413c 60DEF_CHOOSE_FORMAT(enum AVPixelFormat, pix_fmt, pix_fmts, AV_PIX_FMT_NONE,
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61 GET_PIX_FMT_NAME, ":")
62
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63DEF_CHOOSE_FORMAT(enum AVSampleFormat, sample_fmt, sample_fmts,
64 AV_SAMPLE_FMT_NONE, GET_SAMPLE_FMT_NAME, ",")
65
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66DEF_CHOOSE_FORMAT(int, sample_rate, supported_samplerates, 0,
67 GET_SAMPLE_RATE_NAME, ",")
68
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69DEF_CHOOSE_FORMAT(uint64_t, channel_layout, channel_layouts, 0,
70 GET_CH_LAYOUT_NAME, ",")
71
72FilterGraph *init_simple_filtergraph(InputStream *ist, OutputStream *ost)
73{
74 FilterGraph *fg = av_mallocz(sizeof(*fg));
75
76 if (!fg)
5e3f9979 77 exit(1);
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78 fg->index = nb_filtergraphs;
79
80 fg->outputs = grow_array(fg->outputs, sizeof(*fg->outputs), &fg->nb_outputs,
81 fg->nb_outputs + 1);
82 if (!(fg->outputs[0] = av_mallocz(sizeof(*fg->outputs[0]))))
5e3f9979 83 exit(1);
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84 fg->outputs[0]->ost = ost;
85 fg->outputs[0]->graph = fg;
86
87 ost->filter = fg->outputs[0];
88
89 fg->inputs = grow_array(fg->inputs, sizeof(*fg->inputs), &fg->nb_inputs,
90 fg->nb_inputs + 1);
91 if (!(fg->inputs[0] = av_mallocz(sizeof(*fg->inputs[0]))))
5e3f9979 92 exit(1);
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93 fg->inputs[0]->ist = ist;
94 fg->inputs[0]->graph = fg;
95
96 ist->filters = grow_array(ist->filters, sizeof(*ist->filters),
97 &ist->nb_filters, ist->nb_filters + 1);
98 ist->filters[ist->nb_filters - 1] = fg->inputs[0];
99
100 filtergraphs = grow_array(filtergraphs, sizeof(*filtergraphs),
101 &nb_filtergraphs, nb_filtergraphs + 1);
102 filtergraphs[nb_filtergraphs - 1] = fg;
103
104 return fg;
105}
106
107static void init_input_filter(FilterGraph *fg, AVFilterInOut *in)
108{
109 InputStream *ist = NULL;
110 enum AVMediaType type = avfilter_pad_get_type(in->filter_ctx->input_pads, in->pad_idx);
111 int i;
112
113 // TODO: support other filter types
114 if (type != AVMEDIA_TYPE_VIDEO && type != AVMEDIA_TYPE_AUDIO) {
115 av_log(NULL, AV_LOG_FATAL, "Only video and audio filters supported "
116 "currently.\n");
5e3f9979 117 exit(1);
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118 }
119
120 if (in->name) {
121 AVFormatContext *s;
122 AVStream *st = NULL;
123 char *p;
124 int file_idx = strtol(in->name, &p, 0);
125
126 if (file_idx < 0 || file_idx >= nb_input_files) {
127 av_log(NULL, AV_LOG_FATAL, "Invalid file index %d in filtegraph description %s.\n",
128 file_idx, fg->graph_desc);
5e3f9979 129 exit(1);
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130 }
131 s = input_files[file_idx]->ctx;
132
133 for (i = 0; i < s->nb_streams; i++) {
134 if (s->streams[i]->codec->codec_type != type)
135 continue;
136 if (check_stream_specifier(s, s->streams[i], *p == ':' ? p + 1 : p) == 1) {
137 st = s->streams[i];
138 break;
139 }
140 }
141 if (!st) {
142 av_log(NULL, AV_LOG_FATAL, "Stream specifier '%s' in filtergraph description %s "
143 "matches no streams.\n", p, fg->graph_desc);
5e3f9979 144 exit(1);
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145 }
146 ist = input_streams[input_files[file_idx]->ist_index + st->index];
147 } else {
148 /* find the first unused stream of corresponding type */
149 for (i = 0; i < nb_input_streams; i++) {
150 ist = input_streams[i];
151 if (ist->st->codec->codec_type == type && ist->discard)
152 break;
153 }
154 if (i == nb_input_streams) {
155 av_log(NULL, AV_LOG_FATAL, "Cannot find a matching stream for "
156 "unlabeled input pad %d on filter %s", in->pad_idx,
157 in->filter_ctx->name);
5e3f9979 158 exit(1);
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159 }
160 }
161 av_assert0(ist);
162
163 ist->discard = 0;
164 ist->decoding_needed = 1;
165 ist->st->discard = AVDISCARD_NONE;
166
167 fg->inputs = grow_array(fg->inputs, sizeof(*fg->inputs),
168 &fg->nb_inputs, fg->nb_inputs + 1);
169 if (!(fg->inputs[fg->nb_inputs - 1] = av_mallocz(sizeof(*fg->inputs[0]))))
5e3f9979 170 exit(1);
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171 fg->inputs[fg->nb_inputs - 1]->ist = ist;
172 fg->inputs[fg->nb_inputs - 1]->graph = fg;
173
174 ist->filters = grow_array(ist->filters, sizeof(*ist->filters),
175 &ist->nb_filters, ist->nb_filters + 1);
176 ist->filters[ist->nb_filters - 1] = fg->inputs[fg->nb_inputs - 1];
177}
178
179static int configure_output_video_filter(FilterGraph *fg, OutputFilter *ofilter, AVFilterInOut *out)
180{
181 char *pix_fmts;
182 OutputStream *ost = ofilter->ost;
183 AVCodecContext *codec = ost->st->codec;
184 AVFilterContext *last_filter = out->filter_ctx;
185 int pad_idx = out->pad_idx;
186 int ret;
187 char name[255];
188
189 snprintf(name, sizeof(name), "output stream %d:%d", ost->file_index, ost->index);
190 ret = avfilter_graph_create_filter(&ofilter->filter,
191 avfilter_get_by_name("buffersink"),
58dee6e6 192 name, NULL, NULL, fg->graph);
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193 if (ret < 0)
194 return ret;
195
196 if (codec->width || codec->height) {
197 char args[255];
198 AVFilterContext *filter;
199
200 snprintf(args, sizeof(args), "%d:%d:flags=0x%X",
201 codec->width,
202 codec->height,
203 (unsigned)ost->sws_flags);
204 snprintf(name, sizeof(name), "scaler for output stream %d:%d",
205 ost->file_index, ost->index);
206 if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
207 name, args, NULL, fg->graph)) < 0)
208 return ret;
209 if ((ret = avfilter_link(last_filter, pad_idx, filter, 0)) < 0)
210 return ret;
211
212 last_filter = filter;
213 pad_idx = 0;
214 }
215
216 if ((pix_fmts = choose_pix_fmts(ost))) {
217 AVFilterContext *filter;
218 snprintf(name, sizeof(name), "pixel format for output stream %d:%d",
219 ost->file_index, ost->index);
220 if ((ret = avfilter_graph_create_filter(&filter,
221 avfilter_get_by_name("format"),
222 "format", pix_fmts, NULL,
223 fg->graph)) < 0)
224 return ret;
225 if ((ret = avfilter_link(last_filter, pad_idx, filter, 0)) < 0)
226 return ret;
227
228 last_filter = filter;
229 pad_idx = 0;
230 av_freep(&pix_fmts);
231 }
232
233 if (ost->frame_rate.num) {
234 AVFilterContext *fps;
235 char args[255];
236
237 snprintf(args, sizeof(args), "fps=%d/%d", ost->frame_rate.num,
238 ost->frame_rate.den);
239 snprintf(name, sizeof(name), "fps for output stream %d:%d",
240 ost->file_index, ost->index);
241 ret = avfilter_graph_create_filter(&fps, avfilter_get_by_name("fps"),
242 name, args, NULL, fg->graph);
243 if (ret < 0)
244 return ret;
245
246 ret = avfilter_link(last_filter, pad_idx, fps, 0);
247 if (ret < 0)
248 return ret;
249 last_filter = fps;
250 pad_idx = 0;
251 }
252
253 if ((ret = avfilter_link(last_filter, pad_idx, ofilter->filter, 0)) < 0)
254 return ret;
255
256 return 0;
257}
258
259static int configure_output_audio_filter(FilterGraph *fg, OutputFilter *ofilter, AVFilterInOut *out)
260{
261 OutputStream *ost = ofilter->ost;
262 AVCodecContext *codec = ost->st->codec;
263 AVFilterContext *last_filter = out->filter_ctx;
264 int pad_idx = out->pad_idx;
265 char *sample_fmts, *sample_rates, *channel_layouts;
266 char name[255];
267 int ret;
268
269
270 snprintf(name, sizeof(name), "output stream %d:%d", ost->file_index, ost->index);
271 ret = avfilter_graph_create_filter(&ofilter->filter,
272 avfilter_get_by_name("abuffersink"),
273 name, NULL, NULL, fg->graph);
274 if (ret < 0)
275 return ret;
276
277 if (codec->channels && !codec->channel_layout)
278 codec->channel_layout = av_get_default_channel_layout(codec->channels);
279
280 sample_fmts = choose_sample_fmts(ost);
281 sample_rates = choose_sample_rates(ost);
282 channel_layouts = choose_channel_layouts(ost);
283 if (sample_fmts || sample_rates || channel_layouts) {
284 AVFilterContext *format;
285 char args[256];
286 int len = 0;
287
288 if (sample_fmts)
289 len += snprintf(args + len, sizeof(args) - len, "sample_fmts=%s:",
290 sample_fmts);
291 if (sample_rates)
292 len += snprintf(args + len, sizeof(args) - len, "sample_rates=%s:",
293 sample_rates);
294 if (channel_layouts)
295 len += snprintf(args + len, sizeof(args) - len, "channel_layouts=%s:",
296 channel_layouts);
297 args[len - 1] = 0;
298
299 av_freep(&sample_fmts);
300 av_freep(&sample_rates);
301 av_freep(&channel_layouts);
302
303 snprintf(name, sizeof(name), "audio format for output stream %d:%d",
304 ost->file_index, ost->index);
305 ret = avfilter_graph_create_filter(&format,
306 avfilter_get_by_name("aformat"),
307 name, args, NULL, fg->graph);
308 if (ret < 0)
309 return ret;
310
311 ret = avfilter_link(last_filter, pad_idx, format, 0);
312 if (ret < 0)
313 return ret;
314
315 last_filter = format;
316 pad_idx = 0;
317 }
318
319 if ((ret = avfilter_link(last_filter, pad_idx, ofilter->filter, 0)) < 0)
320 return ret;
321
322 return 0;
323}
324
325#define DESCRIBE_FILTER_LINK(f, inout, in) \
326{ \
327 AVFilterContext *ctx = inout->filter_ctx; \
328 AVFilterPad *pads = in ? ctx->input_pads : ctx->output_pads; \
329 int nb_pads = in ? ctx->input_count : ctx->output_count; \
330 AVIOContext *pb; \
331 \
332 if (avio_open_dyn_buf(&pb) < 0) \
5e3f9979 333 exit(1); \
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334 \
335 avio_printf(pb, "%s", ctx->filter->name); \
336 if (nb_pads > 1) \
337 avio_printf(pb, ":%s", avfilter_pad_get_name(pads, inout->pad_idx));\
338 avio_w8(pb, 0); \
339 avio_close_dyn_buf(pb, &f->name); \
340}
341
342int configure_output_filter(FilterGraph *fg, OutputFilter *ofilter, AVFilterInOut *out)
343{
344 av_freep(&ofilter->name);
345 DESCRIBE_FILTER_LINK(ofilter, out, 0);
346
347 switch (avfilter_pad_get_type(out->filter_ctx->output_pads, out->pad_idx)) {
348 case AVMEDIA_TYPE_VIDEO: return configure_output_video_filter(fg, ofilter, out);
349 case AVMEDIA_TYPE_AUDIO: return configure_output_audio_filter(fg, ofilter, out);
350 default: av_assert0(0);
351 }
352}
353
354static int configure_input_video_filter(FilterGraph *fg, InputFilter *ifilter,
355 AVFilterInOut *in)
356{
357 AVFilterContext *first_filter = in->filter_ctx;
358 AVFilter *filter = avfilter_get_by_name("buffer");
359 InputStream *ist = ifilter->ist;
360 AVRational tb = ist->framerate.num ? av_inv_q(ist->framerate) :
361 ist->st->time_base;
362 AVRational sar;
363 char args[255], name[255];
364 int pad_idx = in->pad_idx;
365 int ret;
366
367 sar = ist->st->sample_aspect_ratio.num ?
368 ist->st->sample_aspect_ratio :
369 ist->st->codec->sample_aspect_ratio;
370 snprintf(args, sizeof(args), "%d:%d:%d:%d:%d:%d:%d", ist->st->codec->width,
371 ist->st->codec->height, ist->st->codec->pix_fmt,
372 tb.num, tb.den, sar.num, sar.den);
373 snprintf(name, sizeof(name), "graph %d input from stream %d:%d", fg->index,
374 ist->file_index, ist->st->index);
375
376 if ((ret = avfilter_graph_create_filter(&ifilter->filter, filter, name,
377 args, NULL, fg->graph)) < 0)
378 return ret;
379
380 if (ist->framerate.num) {
381 AVFilterContext *setpts;
382
383 snprintf(name, sizeof(name), "force CFR for input from stream %d:%d",
384 ist->file_index, ist->st->index);
385 if ((ret = avfilter_graph_create_filter(&setpts,
386 avfilter_get_by_name("setpts"),
387 name, "N", NULL,
388 fg->graph)) < 0)
389 return ret;
390
391 if ((ret = avfilter_link(setpts, 0, first_filter, pad_idx)) < 0)
392 return ret;
393
394 first_filter = setpts;
395 pad_idx = 0;
396 }
397
398 if ((ret = avfilter_link(ifilter->filter, 0, first_filter, pad_idx)) < 0)
399 return ret;
400 return 0;
401}
402
403static int configure_input_audio_filter(FilterGraph *fg, InputFilter *ifilter,
404 AVFilterInOut *in)
405{
406 AVFilterContext *first_filter = in->filter_ctx;
407 AVFilter *filter = avfilter_get_by_name("abuffer");
408 InputStream *ist = ifilter->ist;
409 int pad_idx = in->pad_idx;
410 char args[255], name[255];
411 int ret;
412
413 snprintf(args, sizeof(args), "time_base=%d/%d:sample_rate=%d:sample_fmt=%s"
414 ":channel_layout=0x%"PRIx64,
415 1, ist->st->codec->sample_rate,
416 ist->st->codec->sample_rate,
417 av_get_sample_fmt_name(ist->st->codec->sample_fmt),
418 ist->st->codec->channel_layout);
419 snprintf(name, sizeof(name), "graph %d input from stream %d:%d", fg->index,
420 ist->file_index, ist->st->index);
421
422 if ((ret = avfilter_graph_create_filter(&ifilter->filter, filter,
423 name, args, NULL,
424 fg->graph)) < 0)
425 return ret;
426
427 if (audio_sync_method > 0) {
428 AVFilterContext *async;
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429 int len = 0;
430
431 av_log(NULL, AV_LOG_WARNING, "-async has been deprecated. Used the "
432 "asyncts audio filter instead.\n");
433
434 if (audio_sync_method > 1)
435 len += snprintf(args + len, sizeof(args) - len, "compensate=1:"
436 "max_comp=%d:", audio_sync_method);
437 snprintf(args + len, sizeof(args) - len, "min_delta=%f",
438 audio_drift_threshold);
439
440 snprintf(name, sizeof(name), "graph %d audio sync for input stream %d:%d",
441 fg->index, ist->file_index, ist->st->index);
442 ret = avfilter_graph_create_filter(&async,
443 avfilter_get_by_name("asyncts"),
444 name, args, NULL, fg->graph);
445 if (ret < 0)
446 return ret;
447
448 ret = avfilter_link(async, 0, first_filter, pad_idx);
449 if (ret < 0)
450 return ret;
451
452 first_filter = async;
453 pad_idx = 0;
454 }
455 if ((ret = avfilter_link(ifilter->filter, 0, first_filter, pad_idx)) < 0)
456 return ret;
457
458 return 0;
459}
460
461static int configure_input_filter(FilterGraph *fg, InputFilter *ifilter,
462 AVFilterInOut *in)
463{
464 av_freep(&ifilter->name);
465 DESCRIBE_FILTER_LINK(ifilter, in, 1);
466
467 switch (avfilter_pad_get_type(in->filter_ctx->input_pads, in->pad_idx)) {
468 case AVMEDIA_TYPE_VIDEO: return configure_input_video_filter(fg, ifilter, in);
469 case AVMEDIA_TYPE_AUDIO: return configure_input_audio_filter(fg, ifilter, in);
470 default: av_assert0(0);
471 }
472}
473
474int configure_filtergraph(FilterGraph *fg)
475{
476 AVFilterInOut *inputs, *outputs, *cur;
477 int ret, i, init = !fg->graph, simple = !fg->graph_desc;
478 const char *graph_desc = simple ? fg->outputs[0]->ost->avfilter :
479 fg->graph_desc;
480
481 avfilter_graph_free(&fg->graph);
482 if (!(fg->graph = avfilter_graph_alloc()))
483 return AVERROR(ENOMEM);
484
485 if (simple) {
486 OutputStream *ost = fg->outputs[0]->ost;
487 char args[255];
488 snprintf(args, sizeof(args), "flags=0x%X", (unsigned)ost->sws_flags);
489 fg->graph->scale_sws_opts = av_strdup(args);
490 }
491
492 if ((ret = avfilter_graph_parse2(fg->graph, graph_desc, &inputs, &outputs)) < 0)
493 return ret;
494
495 if (simple && (!inputs || inputs->next || !outputs || outputs->next)) {
496 av_log(NULL, AV_LOG_ERROR, "Simple filtergraph '%s' does not have "
497 "exactly one input and output.\n", graph_desc);
498 return AVERROR(EINVAL);
499 }
500
501 for (cur = inputs; !simple && init && cur; cur = cur->next)
502 init_input_filter(fg, cur);
503
504 for (cur = inputs, i = 0; cur; cur = cur->next, i++)
505 if ((ret = configure_input_filter(fg, fg->inputs[i], cur)) < 0)
506 return ret;
507 avfilter_inout_free(&inputs);
508
509 if (!init || simple) {
510 /* we already know the mappings between lavfi outputs and output streams,
511 * so we can finish the setup */
512 for (cur = outputs, i = 0; cur; cur = cur->next, i++)
513 configure_output_filter(fg, fg->outputs[i], cur);
514 avfilter_inout_free(&outputs);
515
516 if ((ret = avfilter_graph_config(fg->graph, NULL)) < 0)
517 return ret;
518 } else {
519 /* wait until output mappings are processed */
520 for (cur = outputs; cur;) {
521 fg->outputs = grow_array(fg->outputs, sizeof(*fg->outputs),
522 &fg->nb_outputs, fg->nb_outputs + 1);
523 if (!(fg->outputs[fg->nb_outputs - 1] = av_mallocz(sizeof(*fg->outputs[0]))))
5e3f9979 524 exit(1);
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525 fg->outputs[fg->nb_outputs - 1]->graph = fg;
526 fg->outputs[fg->nb_outputs - 1]->out_tmp = cur;
527 cur = cur->next;
528 fg->outputs[fg->nb_outputs - 1]->out_tmp->next = NULL;
529 }
530 }
531
532 return 0;
533}
534
535int ist_in_filtergraph(FilterGraph *fg, InputStream *ist)
536{
537 int i;
538 for (i = 0; i < fg->nb_inputs; i++)
539 if (fg->inputs[i]->ist == ist)
540 return 1;
541 return 0;
542}
543