2 Copyright (C) 2013 Paul Brossier <piem@aubio.org>
4 This file is part of aubio.
6 aubio is free software: you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation, either version 3 of the License, or
9 (at your option) any later version.
11 aubio 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
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with aubio. If not, see <http://www.gnu.org/licenses/>.
21 #include "aubio_priv.h"
25 #include <libavcodec/avcodec.h>
26 #include <libavformat/avformat.h>
27 #if defined(HAVE_SWRESAMPLE)
28 #include <libswresample/swresample.h>
29 #elif defined(HAVE_AVRESAMPLE)
30 #include <libavresample/avresample.h>
32 #include <libavutil/opt.h>
35 // determine whether we use libavformat from ffmpeg or from libav
36 #define FFMPEG_LIBAVFORMAT (LIBAVFORMAT_VERSION_MICRO > 99 )
37 // max_analyze_duration2 was used from ffmpeg libavformat 55.43.100 -> 57.2.100
38 #define FFMPEG_LIBAVFORMAT_MAX_DUR2 FFMPEG_LIBAVFORMAT && ( \
39 (LIBAVFORMAT_VERSION_MAJOR == 55 && LIBAVFORMAT_VERSION_MINOR >= 43) \
40 || (LIBAVFORMAT_VERSION_MAJOR == 56) \
41 || (LIBAVFORMAT_VERSION_MAJOR == 57 && LIBAVFORMAT_VERSION_MINOR < 2) \
44 // backward compatibility with libavcodec55
45 #if LIBAVCODEC_VERSION_INT < AV_VERSION_INT(57,0,0)
46 #define HAVE_AUBIO_LIBAVCODEC_DEPRECATED 1
49 #if LIBAVCODEC_VERSION_INT < AV_VERSION_INT(55,28,1)
50 #warning "libavcodec < 56 is deprecated"
51 #define av_frame_alloc avcodec_alloc_frame
52 #define av_frame_free avcodec_free_frame
53 #define av_packet_unref av_free_packet
56 #include "aubio_priv.h"
59 #include "source_avcodec.h"
61 #if LIBAVCODEC_VERSION_INT < AV_VERSION_INT(56, 56, 0)
62 #define AUBIO_AVCODEC_MAX_BUFFER_SIZE FF_MIN_BUFFER_SIZE
64 #define AUBIO_AVCODEC_MAX_BUFFER_SIZE AV_INPUT_BUFFER_MIN_SIZE
67 struct _aubio_source_avcodec_t {
72 // some data about the file
74 uint_t input_samplerate;
75 uint_t input_channels;
78 AVFormatContext *avFormatCtx;
79 AVCodecContext *avCodecCtx;
82 #ifdef HAVE_AVRESAMPLE
83 AVAudioResampleContext *avr;
84 #elif defined(HAVE_SWRESAMPLE)
90 sint_t selected_stream;
94 // create or re-create the context when _do or _do_multi is called
95 void aubio_source_avcodec_reset_resampler(aubio_source_avcodec_t * s);
96 // actually read a frame
97 void aubio_source_avcodec_readframe(aubio_source_avcodec_t *s,
98 uint_t * read_samples);
100 uint_t aubio_source_avcodec_has_network_url(aubio_source_avcodec_t *s);
102 uint_t aubio_source_avcodec_has_network_url(aubio_source_avcodec_t *s) {
103 char proto[20], authorization[256], hostname[128], uripath[256];
104 int proto_size = 20, authorization_size = 256, hostname_size = 128,
105 *port_ptr = 0, path_size = 256;
106 av_url_split(proto, proto_size, authorization, authorization_size, hostname,
107 hostname_size, port_ptr, uripath, path_size, s->path);
115 aubio_source_avcodec_t * new_aubio_source_avcodec(const char_t * path,
116 uint_t samplerate, uint_t hop_size) {
117 aubio_source_avcodec_t * s = AUBIO_NEW(aubio_source_avcodec_t);
118 AVFormatContext *avFormatCtx = s->avFormatCtx;
119 AVCodecContext *avCodecCtx = s->avCodecCtx;
120 AVFrame *avFrame = s->avFrame;
121 sint_t selected_stream = -1;
122 #if FF_API_LAVF_AVCTX
123 AVCodecParameters *codecpar;
129 AUBIO_ERR("source_avcodec: Aborted opening null path\n");
132 if ((sint_t)samplerate < 0) {
133 AUBIO_ERR("source_avcodec: Can not open %s with samplerate %d\n",
137 if ((sint_t)hop_size <= 0) {
138 AUBIO_ERR("source_avcodec: Can not open %s with hop_size %d\n",
143 s->hop_size = hop_size;
146 if (s->path) AUBIO_FREE(s->path);
147 s->path = AUBIO_ARRAY(char_t, strnlen(path, PATH_MAX) + 1);
148 strncpy(s->path, path, strnlen(path, PATH_MAX) + 1);
150 #if LIBAVFORMAT_VERSION_INT < AV_VERSION_INT(58,0,0)
151 // register all formats and codecs
155 if (aubio_source_avcodec_has_network_url(s)) {
156 avformat_network_init();
159 // try opening the file and get some info about it
161 if ( (err = avformat_open_input(&avFormatCtx, s->path, NULL, NULL) ) < 0 ) {
163 av_strerror (err, errorstr, sizeof(errorstr));
164 AUBIO_ERR("source_avcodec: Failed opening %s (%s)\n", s->path, errorstr);
168 // try to make sure max_analyze_duration is big enough for most songs
169 #if FFMPEG_LIBAVFORMAT_MAX_DUR2
170 avFormatCtx->max_analyze_duration2 *= 100;
172 avFormatCtx->max_analyze_duration *= 100;
175 // retrieve stream information
176 if ( (err = avformat_find_stream_info(avFormatCtx, NULL)) < 0 ) {
178 av_strerror (err, errorstr, sizeof(errorstr));
179 AUBIO_ERR("source_avcodec: Could not find stream information "
180 "for %s (%s)\n", s->path, errorstr);
184 // dump information about file onto standard error
185 //av_dump_format(avFormatCtx, 0, s->path, 0);
187 // look for the first audio stream
188 for (i = 0; i < avFormatCtx->nb_streams; i++) {
189 #if FF_API_LAVF_AVCTX
190 if (avFormatCtx->streams[i]->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {
192 if (avFormatCtx->streams[i]->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
194 if (selected_stream == -1) {
197 AUBIO_WRN("source_avcodec: More than one audio stream in %s, "
198 "taking the first one\n", s->path);
202 if (selected_stream == -1) {
203 AUBIO_ERR("source_avcodec: No audio stream in %s\n", s->path);
206 //AUBIO_DBG("Taking stream %d in file %s\n", selected_stream, s->path);
207 s->selected_stream = selected_stream;
209 #if FF_API_LAVF_AVCTX
210 codecpar = avFormatCtx->streams[selected_stream]->codecpar;
211 if (codecpar == NULL) {
212 AUBIO_ERR("source_avcodec: Could not find decoder for %s", s->path);
215 codec = avcodec_find_decoder(codecpar->codec_id);
217 /* Allocate a codec context for the decoder */
218 avCodecCtx = avcodec_alloc_context3(codec);
220 AUBIO_ERR("source_avcodec: Failed to allocate the %s codec context "
221 "for path %s\n", av_get_media_type_string(AVMEDIA_TYPE_AUDIO),
226 avCodecCtx = avFormatCtx->streams[selected_stream]->codec;
227 codec = avcodec_find_decoder(avCodecCtx->codec_id);
230 AUBIO_ERR("source_avcodec: Could not find decoder for %s", s->path);
234 #if FF_API_LAVF_AVCTX
235 /* Copy codec parameters from input stream to output codec context */
236 if ((err = avcodec_parameters_to_context(avCodecCtx, codecpar)) < 0) {
237 AUBIO_ERR("source_avcodec: Failed to copy %s codec parameters to "
238 "decoder context for %s\n",
239 av_get_media_type_string(AVMEDIA_TYPE_AUDIO), s->path);
242 av_codec_set_pkt_timebase(avCodecCtx,
243 avFormatCtx->streams[selected_stream]->time_base);
246 if ( ( err = avcodec_open2(avCodecCtx, codec, NULL) ) < 0) {
248 av_strerror (err, errorstr, sizeof(errorstr));
249 AUBIO_ERR("source_avcodec: Could not load codec for %s (%s)\n", s->path,
254 /* get input specs */
255 s->input_samplerate = avCodecCtx->sample_rate;
256 s->input_channels = avCodecCtx->channels;
257 //AUBIO_DBG("input_samplerate: %d\n", s->input_samplerate);
258 //AUBIO_DBG("input_channels: %d\n", s->input_channels);
260 if (samplerate == 0) {
261 s->samplerate = s->input_samplerate;
263 s->samplerate = samplerate;
266 if (s->samplerate > s->input_samplerate) {
267 AUBIO_WRN("source_avcodec: upsampling %s from %d to %d\n", s->path,
268 s->input_samplerate, s->samplerate);
271 avFrame = av_frame_alloc();
273 AUBIO_ERR("source_avcodec: Could not allocate frame for (%s)\n", s->path);
276 /* allocate output for avr */
277 s->output = (smpl_t *)av_malloc(AUBIO_AVCODEC_MAX_BUFFER_SIZE
283 s->avFormatCtx = avFormatCtx;
284 s->avCodecCtx = avCodecCtx;
285 s->avFrame = avFrame;
287 aubio_source_avcodec_reset_resampler(s);
289 if (s->avr == NULL) goto beach;
293 //av_log_set_level(AV_LOG_QUIET);
298 //AUBIO_ERR("can not read %s at samplerate %dHz with a hop_size of %d\n",
299 // s->path, s->samplerate, s->hop_size);
300 del_aubio_source_avcodec(s);
304 void aubio_source_avcodec_reset_resampler(aubio_source_avcodec_t * s)
306 // create or reset resampler to/from mono/multi-channel
307 if ( s->avr == NULL ) {
309 int64_t input_layout = av_get_default_channel_layout(s->input_channels);
310 int64_t output_layout = av_get_default_channel_layout(s->input_channels);
311 #ifdef HAVE_AVRESAMPLE
312 AVAudioResampleContext *avr = avresample_alloc_context();
313 #elif defined(HAVE_SWRESAMPLE)
314 SwrContext *avr = swr_alloc();
315 #endif /* HAVE_AVRESAMPLE || HAVE_SWRESAMPLE */
317 av_opt_set_int(avr, "in_channel_layout", input_layout, 0);
318 av_opt_set_int(avr, "out_channel_layout", output_layout, 0);
319 av_opt_set_int(avr, "in_sample_rate", s->input_samplerate, 0);
320 av_opt_set_int(avr, "out_sample_rate", s->samplerate, 0);
321 av_opt_set_int(avr, "in_sample_fmt", s->avCodecCtx->sample_fmt, 0);
322 #if HAVE_AUBIO_DOUBLE
323 av_opt_set_int(avr, "out_sample_fmt", AV_SAMPLE_FMT_DBL, 0);
325 av_opt_set_int(avr, "out_sample_fmt", AV_SAMPLE_FMT_FLT, 0);
328 //av_opt_set_int(avr, "out_sample_fmt", AV_SAMPLE_FMT_FLTP, 0);
329 #ifdef HAVE_AVRESAMPLE
330 if ( ( err = avresample_open(avr) ) < 0)
331 #elif defined(HAVE_SWRESAMPLE)
332 if ( ( err = swr_init(avr) ) < 0)
333 #endif /* HAVE_AVRESAMPLE || HAVE_SWRESAMPLE */
336 av_strerror (err, errorstr, sizeof(errorstr));
337 AUBIO_ERR("source_avcodec: Could not open resampling context"
338 " for %s (%s)\n", s->path, errorstr);
345 void aubio_source_avcodec_readframe(aubio_source_avcodec_t *s,
346 uint_t * read_samples)
348 AVFormatContext *avFormatCtx = s->avFormatCtx;
349 AVCodecContext *avCodecCtx = s->avCodecCtx;
350 AVFrame *avFrame = s->avFrame;
351 AVPacket avPacket = s->avPacket;
352 #ifdef HAVE_AVRESAMPLE
353 AVAudioResampleContext *avr = s->avr;
354 #elif defined(HAVE_SWRESAMPLE)
355 SwrContext *avr = s->avr;
356 #endif /* HAVE_AVRESAMPLE || HAVE_SWRESAMPLE */
358 #ifdef HAVE_AVRESAMPLE
360 int in_samples = avFrame->nb_samples;
361 int out_linesize = 0;
362 int max_out_samples = AUBIO_AVCODEC_MAX_BUFFER_SIZE;
364 #elif defined(HAVE_SWRESAMPLE)
365 int in_samples = avFrame->nb_samples;
366 int max_out_samples = AUBIO_AVCODEC_MAX_BUFFER_SIZE / avCodecCtx->channels;
368 #endif /* HAVE_AVRESAMPLE || HAVE_SWRESAMPLE */
369 smpl_t *output = s->output;
370 #ifndef FF_API_LAVF_AVCTX
375 av_init_packet (&avPacket);
380 int err = av_read_frame (avFormatCtx, &avPacket);
381 if (err == AVERROR_EOF) {
387 av_strerror (err, errorstr, sizeof(errorstr));
388 AUBIO_ERR("source_avcodec: could not read frame in %s (%s)\n",
393 } while (avPacket.stream_index != s->selected_stream);
395 #if FF_API_LAVF_AVCTX
396 ret = avcodec_send_packet(avCodecCtx, &avPacket);
397 if (ret < 0 && ret != AVERROR_EOF) {
398 AUBIO_ERR("source_avcodec: error when sending packet for %s\n", s->path);
401 ret = avcodec_receive_frame(avCodecCtx, avFrame);
406 if (ret == AVERROR(EAGAIN)) {
407 //AUBIO_WRN("source_avcodec: output is not available right now - "
408 // "user must try to send new input\n");
410 } else if (ret == AVERROR_EOF) {
411 AUBIO_WRN("source_avcodec: the decoder has been fully flushed, "
412 "and there will be no more output frames\n");
414 AUBIO_ERR("source_avcodec: decoding errors on %s\n", s->path);
419 len = avcodec_decode_audio4(avCodecCtx, avFrame, &got_frame, &avPacket);
422 AUBIO_ERR("source_avcodec: error while decoding %s\n", s->path);
426 if (got_frame == 0) {
427 AUBIO_WRN("source_avcodec: did not get a frame when reading %s\n",
432 #if LIBAVUTIL_VERSION_MAJOR > 52
433 if (avFrame->channels != (sint_t)s->input_channels) {
434 AUBIO_WRN ("source_avcodec: trying to read from %d channel(s),"
435 "but configured for %d; is '%s' corrupt?\n",
436 avFrame->channels, s->input_channels, s->path);
440 #warning "avutil < 53 is deprecated, crashes might occur on corrupt files"
443 #ifdef HAVE_AVRESAMPLE
445 av_samples_get_buffer_size(&in_linesize, avCodecCtx->channels,
446 avFrame->nb_samples, avCodecCtx->sample_fmt, 1);
447 in_samples = avFrame->nb_samples;
449 max_out_samples = AUBIO_AVCODEC_MAX_BUFFER_SIZE;
450 out_samples = avresample_convert ( avr,
451 (uint8_t **)&output, out_linesize, max_out_samples,
452 (uint8_t **)avFrame->data, in_linesize, in_samples);
453 #elif defined(HAVE_SWRESAMPLE)
454 in_samples = avFrame->nb_samples;
455 max_out_samples = AUBIO_AVCODEC_MAX_BUFFER_SIZE / avCodecCtx->channels;
456 out_samples = swr_convert( avr,
457 (uint8_t **)&output, max_out_samples,
458 (const uint8_t **)avFrame->data, in_samples);
459 #endif /* HAVE_AVRESAMPLE || HAVE_SWRESAMPLE */
460 if (out_samples <= 0) {
461 AUBIO_WRN("source_avcodec: no sample found while converting frame (%s)\n",
466 *read_samples = out_samples;
469 s->avFormatCtx = avFormatCtx;
470 s->avCodecCtx = avCodecCtx;
471 s->avFrame = avFrame;
472 #if defined(HAVE_AVRESAMPLE) || defined(HAVE_SWRESAMPLE)
474 #endif /* HAVE_AVRESAMPLE || HAVE_SWRESAMPLE */
477 av_packet_unref(&avPacket);
480 void aubio_source_avcodec_do(aubio_source_avcodec_t * s, fvec_t * read_data,
484 uint_t total_wrote = 0;
485 while (total_wrote < s->hop_size) {
486 end = MIN(s->read_samples - s->read_index, s->hop_size - total_wrote);
487 for (i = 0; i < end; i++) {
488 read_data->data[i + total_wrote] = 0.;
489 for (j = 0; j < s->input_channels; j++) {
490 read_data->data[i + total_wrote] +=
491 s->output[(i + s->read_index) * s->input_channels + j];
493 read_data->data[i + total_wrote] *= 1./s->input_channels;
496 if (total_wrote < s->hop_size) {
497 uint_t avcodec_read = 0;
498 aubio_source_avcodec_readframe(s, &avcodec_read);
499 s->read_samples = avcodec_read;
505 s->read_index += end;
508 if (total_wrote < s->hop_size) {
509 for (i = total_wrote; i < s->hop_size; i++) {
510 read_data->data[i] = 0.;
516 void aubio_source_avcodec_do_multi(aubio_source_avcodec_t * s,
517 fmat_t * read_data, uint_t * read) {
520 uint_t total_wrote = 0;
521 while (total_wrote < s->hop_size) {
522 end = MIN(s->read_samples - s->read_index, s->hop_size - total_wrote);
523 for (j = 0; j < read_data->height; j++) {
524 for (i = 0; i < end; i++) {
525 read_data->data[j][i + total_wrote] =
526 s->output[(i + s->read_index) * s->input_channels + j];
530 if (total_wrote < s->hop_size) {
531 uint_t avcodec_read = 0;
532 aubio_source_avcodec_readframe(s, &avcodec_read);
533 s->read_samples = avcodec_read;
539 s->read_index += end;
542 if (total_wrote < s->hop_size) {
543 for (j = 0; j < read_data->height; j++) {
544 for (i = total_wrote; i < s->hop_size; i++) {
545 read_data->data[j][i] = 0.;
552 uint_t aubio_source_avcodec_get_samplerate(const aubio_source_avcodec_t * s) {
553 return s->samplerate;
556 uint_t aubio_source_avcodec_get_channels(const aubio_source_avcodec_t * s) {
557 return s->input_channels;
560 uint_t aubio_source_avcodec_seek (aubio_source_avcodec_t * s, uint_t pos) {
561 int64_t resampled_pos =
562 (uint_t)ROUND(pos * (s->input_samplerate * 1. / s->samplerate));
563 int64_t min_ts = MAX(resampled_pos - 2000, 0);
564 int64_t max_ts = MIN(resampled_pos + 2000, INT64_MAX);
565 int seek_flags = AVSEEK_FLAG_FRAME | AVSEEK_FLAG_ANY;
566 int ret = AUBIO_FAIL;
567 if (s->avFormatCtx != NULL && s->avr != NULL) {
570 AUBIO_ERR("source_avcodec: failed seeking in %s (file not opened?)",
574 if ((sint_t)pos < 0) {
575 AUBIO_ERR("source_avcodec: could not seek %s at %d (seeking position"
576 " should be >= 0)\n", s->path, pos);
579 ret = avformat_seek_file(s->avFormatCtx, s->selected_stream,
580 min_ts, resampled_pos, max_ts, seek_flags);
582 AUBIO_ERR("source_avcodec: failed seeking to %d in file %s",
589 #ifdef HAVE_AVRESAMPLE
590 // reset the AVAudioResampleContext
591 avresample_close(s->avr);
592 avresample_open(s->avr);
593 #elif defined(HAVE_SWRESAMPLE)
600 uint_t aubio_source_avcodec_get_duration (aubio_source_avcodec_t * s) {
601 if (s && &(s->avFormatCtx) != NULL) {
602 int64_t duration = s->avFormatCtx->duration;
603 return s->samplerate * ((uint_t)duration / 1e6 );
608 uint_t aubio_source_avcodec_close(aubio_source_avcodec_t * s) {
609 if (s->avr != NULL) {
610 #ifdef HAVE_AVRESAMPLE
611 avresample_close( s->avr );
612 #elif defined(HAVE_SWRESAMPLE)
613 swr_close ( s->avr );
618 if (s->avCodecCtx != NULL) {
619 #ifndef HAVE_AUBIO_LIBAVCODEC_DEPRECATED
620 avcodec_free_context( &s->avCodecCtx );
622 avcodec_close ( s->avCodecCtx );
625 s->avCodecCtx = NULL;
626 if (s->avFormatCtx != NULL) {
627 avformat_close_input(&s->avFormatCtx);
628 s->avFormatCtx = NULL;
630 av_packet_unref(&s->avPacket);
634 void del_aubio_source_avcodec(aubio_source_avcodec_t * s){
636 aubio_source_avcodec_close(s);
637 if (s->output != NULL) {
641 if (s->avFrame != NULL) {
642 av_frame_free( &(s->avFrame) );
652 #endif /* HAVE_LIBAV */