source: src/io/source_avcodec.c @ 6551a683

feature/autosinkfeature/constantqfeature/pitchshiftfeature/pydocstringsfeature/timestretch
Last change on this file since 6551a683 was 6551a683, checked in by Paul Brossier <piem@piem.org>, 13 months ago

[source] [avcodec] remove oldavr stuff

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1/*
2  Copyright (C) 2013 Paul Brossier <piem@aubio.org>
3
4  This file is part of aubio.
5
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.
10
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.
15
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/>.
18
19*/
20
21#include "aubio_priv.h"
22
23#ifdef HAVE_LIBAV
24
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>
31#endif
32#include <libavutil/opt.h>
33#include <stdlib.h>
34
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) \
42      )
43
44// backward compatibility with libavcodec55
45#if LIBAVCODEC_VERSION_INT < AV_VERSION_INT(57,0,0)
46#define HAVE_AUBIO_LIBAVCODEC_DEPRECATED 1
47#endif
48
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
54#endif
55
56#include "aubio_priv.h"
57#include "fvec.h"
58#include "fmat.h"
59#include "source_avcodec.h"
60
61#if LIBAVCODEC_VERSION_INT < AV_VERSION_INT(56, 56, 0)
62#define AUBIO_AVCODEC_MAX_BUFFER_SIZE FF_MIN_BUFFER_SIZE
63#else
64#define AUBIO_AVCODEC_MAX_BUFFER_SIZE AV_INPUT_BUFFER_MIN_SIZE
65#endif
66
67struct _aubio_source_avcodec_t {
68  uint_t hop_size;
69  uint_t samplerate;
70  uint_t channels;
71
72  // some data about the file
73  char_t *path;
74  uint_t input_samplerate;
75  uint_t input_channels;
76
77  // avcodec stuff
78  AVFormatContext *avFormatCtx;
79  AVCodecContext *avCodecCtx;
80  AVFrame *avFrame;
81  AVPacket avPacket;
82#ifdef HAVE_AVRESAMPLE
83  AVAudioResampleContext *avr;
84#elif defined(HAVE_SWRESAMPLE)
85  SwrContext *avr;
86#endif
87  smpl_t *output;
88  uint_t read_samples;
89  uint_t read_index;
90  sint_t selected_stream;
91  uint_t eof;
92};
93
94// create or re-create the context when _do or _do_multi is called
95void aubio_source_avcodec_reset_resampler(aubio_source_avcodec_t * s);
96// actually read a frame
97void aubio_source_avcodec_readframe(aubio_source_avcodec_t *s,
98    uint_t * read_samples);
99
100uint_t aubio_source_avcodec_has_network_url(aubio_source_avcodec_t *s);
101
102uint_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);
108  if (strlen(proto)) {
109    return 1;
110  }
111  return 0;
112}
113
114
115aubio_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;
124#endif
125  AVCodec *codec;
126  uint_t i;
127  int err;
128  if (path == NULL) {
129    AUBIO_ERR("source_avcodec: Aborted opening null path\n");
130    goto beach;
131  }
132  if ((sint_t)samplerate < 0) {
133    AUBIO_ERR("source_avcodec: Can not open %s with samplerate %d\n",
134        path, samplerate);
135    goto beach;
136  }
137  if ((sint_t)hop_size <= 0) {
138    AUBIO_ERR("source_avcodec: Can not open %s with hop_size %d\n",
139        path, hop_size);
140    goto beach;
141  }
142
143  s->hop_size = hop_size;
144  s->channels = 1;
145
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);
149
150#if LIBAVFORMAT_VERSION_INT < AV_VERSION_INT(58,0,0)
151  // register all formats and codecs
152  av_register_all();
153#endif
154
155  if (aubio_source_avcodec_has_network_url(s)) {
156    avformat_network_init();
157  }
158
159  // try opening the file and get some info about it
160  avFormatCtx = NULL;
161  if ( (err = avformat_open_input(&avFormatCtx, s->path, NULL, NULL) ) < 0 ) {
162    char errorstr[256];
163    av_strerror (err, errorstr, sizeof(errorstr));
164    AUBIO_ERR("source_avcodec: Failed opening %s (%s)\n", s->path, errorstr);
165    goto beach;
166  }
167
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;
171#else
172  avFormatCtx->max_analyze_duration *= 100;
173#endif
174
175  // retrieve stream information
176  if ( (err = avformat_find_stream_info(avFormatCtx, NULL)) < 0 ) {
177    char errorstr[256];
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);
181    goto beach;
182  }
183
184  // dump information about file onto standard error
185  //av_dump_format(avFormatCtx, 0, s->path, 0);
186
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) {
191#else
192    if (avFormatCtx->streams[i]->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
193#endif
194      if (selected_stream == -1) {
195        selected_stream = i;
196      } else {
197        AUBIO_WRN("source_avcodec: More than one audio stream in %s, "
198            "taking the first one\n", s->path);
199      }
200    }
201  }
202  if (selected_stream == -1) {
203    AUBIO_ERR("source_avcodec: No audio stream in %s\n", s->path);
204    goto beach;
205  }
206  //AUBIO_DBG("Taking stream %d in file %s\n", selected_stream, s->path);
207  s->selected_stream = selected_stream;
208
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);
213    goto beach;
214  }
215  codec = avcodec_find_decoder(codecpar->codec_id);
216
217  /* Allocate a codec context for the decoder */
218  avCodecCtx = avcodec_alloc_context3(codec);
219  if (!avCodecCtx) {
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),
222        s->path);
223    goto beach;
224  }
225#else
226  avCodecCtx = avFormatCtx->streams[selected_stream]->codec;
227  codec = avcodec_find_decoder(avCodecCtx->codec_id);
228#endif
229  if (codec == NULL) {
230    AUBIO_ERR("source_avcodec: Could not find decoder for %s", s->path);
231    goto beach;
232  }
233
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);
240    goto beach;
241  }
242#endif
243
244  if ( ( err = avcodec_open2(avCodecCtx, codec, NULL) ) < 0) {
245    char errorstr[256];
246    av_strerror (err, errorstr, sizeof(errorstr));
247    AUBIO_ERR("source_avcodec: Could not load codec for %s (%s)\n", s->path,
248        errorstr);
249    goto beach;
250  }
251
252  /* get input specs */
253  s->input_samplerate = avCodecCtx->sample_rate;
254  s->input_channels   = avCodecCtx->channels;
255  //AUBIO_DBG("input_samplerate: %d\n", s->input_samplerate);
256  //AUBIO_DBG("input_channels: %d\n", s->input_channels);
257
258  if (samplerate == 0) {
259    s->samplerate = s->input_samplerate;
260  } else {
261    s->samplerate = samplerate;
262  }
263
264  if (s->samplerate >  s->input_samplerate) {
265    AUBIO_WRN("source_avcodec: upsampling %s from %d to %d\n", s->path,
266        s->input_samplerate, s->samplerate);
267  }
268
269  avFrame = av_frame_alloc();
270  if (!avFrame) {
271    AUBIO_ERR("source_avcodec: Could not allocate frame for (%s)\n", s->path);
272  }
273
274  /* allocate output for avr */
275  s->output = (smpl_t *)av_malloc(AUBIO_AVCODEC_MAX_BUFFER_SIZE
276      * sizeof(smpl_t));
277
278  s->read_samples = 0;
279  s->read_index = 0;
280
281  s->avFormatCtx = avFormatCtx;
282  s->avCodecCtx = avCodecCtx;
283  s->avFrame = avFrame;
284
285  aubio_source_avcodec_reset_resampler(s);
286
287  if (s->avr == NULL) goto beach;
288
289  s->eof = 0;
290
291  //av_log_set_level(AV_LOG_QUIET);
292
293  return s;
294
295beach:
296  //AUBIO_ERR("can not read %s at samplerate %dHz with a hop_size of %d\n",
297  //    s->path, s->samplerate, s->hop_size);
298  del_aubio_source_avcodec(s);
299  return NULL;
300}
301
302void aubio_source_avcodec_reset_resampler(aubio_source_avcodec_t * s)
303{
304  // create or reset resampler to/from mono/multi-channel
305  if ( s->avr == NULL ) {
306    int err;
307    int64_t input_layout = av_get_default_channel_layout(s->input_channels);
308    int64_t output_layout = av_get_default_channel_layout(s->input_channels);
309#ifdef HAVE_AVRESAMPLE
310    AVAudioResampleContext *avr = avresample_alloc_context();
311#elif defined(HAVE_SWRESAMPLE)
312    SwrContext *avr = swr_alloc();
313#endif /* HAVE_AVRESAMPLE || HAVE_SWRESAMPLE */
314
315    av_opt_set_int(avr, "in_channel_layout",  input_layout,              0);
316    av_opt_set_int(avr, "out_channel_layout", output_layout,             0);
317    av_opt_set_int(avr, "in_sample_rate",     s->input_samplerate,       0);
318    av_opt_set_int(avr, "out_sample_rate",    s->samplerate,             0);
319    av_opt_set_int(avr, "in_sample_fmt",      s->avCodecCtx->sample_fmt, 0);
320#if HAVE_AUBIO_DOUBLE
321    av_opt_set_int(avr, "out_sample_fmt",     AV_SAMPLE_FMT_DBL,         0);
322#else
323    av_opt_set_int(avr, "out_sample_fmt",     AV_SAMPLE_FMT_FLT,         0);
324#endif
325    // TODO: use planar?
326    //av_opt_set_int(avr, "out_sample_fmt",     AV_SAMPLE_FMT_FLTP,      0);
327#ifdef HAVE_AVRESAMPLE
328    if ( ( err = avresample_open(avr) ) < 0)
329#elif defined(HAVE_SWRESAMPLE)
330    if ( ( err = swr_init(avr) ) < 0)
331#endif /* HAVE_AVRESAMPLE || HAVE_SWRESAMPLE */
332    {
333      char errorstr[256];
334      av_strerror (err, errorstr, sizeof(errorstr));
335      AUBIO_ERR("source_avcodec: Could not open resampling context"
336         " for %s (%s)\n", s->path, errorstr);
337      return;
338    }
339    s->avr = avr;
340  }
341}
342
343void aubio_source_avcodec_readframe(aubio_source_avcodec_t *s,
344    uint_t * read_samples)
345{
346  AVFormatContext *avFormatCtx = s->avFormatCtx;
347  AVCodecContext *avCodecCtx = s->avCodecCtx;
348  AVFrame *avFrame = s->avFrame;
349  AVPacket avPacket = s->avPacket;
350#ifdef HAVE_AVRESAMPLE
351  AVAudioResampleContext *avr = s->avr;
352#elif defined(HAVE_SWRESAMPLE)
353  SwrContext *avr = s->avr;
354#endif /* HAVE_AVRESAMPLE || HAVE_SWRESAMPLE */
355  int got_frame = 0;
356#ifdef HAVE_AVRESAMPLE
357  int in_linesize = 0;
358  int in_samples = avFrame->nb_samples;
359  int out_linesize = 0;
360  int max_out_samples = AUBIO_AVCODEC_MAX_BUFFER_SIZE;
361  int out_samples = 0;
362#elif defined(HAVE_SWRESAMPLE)
363  int in_samples = avFrame->nb_samples;
364  int max_out_samples = AUBIO_AVCODEC_MAX_BUFFER_SIZE / avCodecCtx->channels;
365  int out_samples = 0;
366#endif /* HAVE_AVRESAMPLE || HAVE_SWRESAMPLE */
367  smpl_t *output = s->output;
368#ifndef FF_API_LAVF_AVCTX
369  int len = 0;
370#else
371  int ret = 0;
372#endif
373  av_init_packet (&avPacket);
374  *read_samples = 0;
375
376  do
377  {
378    int err = av_read_frame (avFormatCtx, &avPacket);
379    if (err == AVERROR_EOF) {
380      s->eof = 1;
381      goto beach;
382    }
383    if (err != 0) {
384      char errorstr[256];
385      av_strerror (err, errorstr, sizeof(errorstr));
386      AUBIO_ERR("source_avcodec: could not read frame in %s (%s)\n",
387          s->path, errorstr);
388      s->eof = 1;
389      goto beach;
390    }
391  } while (avPacket.stream_index != s->selected_stream);
392
393#if FF_API_LAVF_AVCTX
394  ret = avcodec_send_packet(avCodecCtx, &avPacket);
395  if (ret < 0 && ret != AVERROR_EOF) {
396    AUBIO_ERR("source_avcodec: error when sending packet for %s\n", s->path);
397    goto beach;
398  }
399  ret = avcodec_receive_frame(avCodecCtx, avFrame);
400  if (ret >= 0) {
401    got_frame = 1;
402  }
403  if (ret < 0) {
404    if (ret == AVERROR(EAGAIN)) {
405      //AUBIO_WRN("source_avcodec: output is not available right now - "
406      //    "user must try to send new input\n");
407      goto beach;
408    } else if (ret == AVERROR_EOF) {
409      AUBIO_WRN("source_avcodec: the decoder has been fully flushed, "
410          "and there will be no more output frames\n");
411    } else {
412      AUBIO_ERR("source_avcodec: decoding errors on %s\n", s->path);
413      goto beach;
414    }
415  }
416#else
417  len = avcodec_decode_audio4(avCodecCtx, avFrame, &got_frame, &avPacket);
418
419  if (len < 0) {
420    AUBIO_ERR("source_avcodec: error while decoding %s\n", s->path);
421    goto beach;
422  }
423#endif
424  if (got_frame == 0) {
425    AUBIO_WRN("source_avcodec: did not get a frame when reading %s\n",
426        s->path);
427    goto beach;
428  }
429
430#if LIBAVUTIL_VERSION_MAJOR > 52
431  if (avFrame->channels != (sint_t)s->input_channels) {
432    AUBIO_WRN ("source_avcodec: trying to read from %d channel(s),"
433        "but configured for %d; is '%s' corrupt?\n",
434        avFrame->channels, s->input_channels, s->path);
435    goto beach;
436  }
437#else
438#warning "avutil < 53 is deprecated, crashes might occur on corrupt files"
439#endif
440
441#ifdef HAVE_AVRESAMPLE
442  in_linesize = 0;
443  av_samples_get_buffer_size(&in_linesize, avCodecCtx->channels,
444      avFrame->nb_samples, avCodecCtx->sample_fmt, 1);
445  in_samples = avFrame->nb_samples;
446  out_linesize = 0;
447  max_out_samples = AUBIO_AVCODEC_MAX_BUFFER_SIZE;
448  out_samples = avresample_convert ( avr,
449        (uint8_t **)&output, out_linesize, max_out_samples,
450        (uint8_t **)avFrame->data, in_linesize, in_samples);
451#elif defined(HAVE_SWRESAMPLE)
452  in_samples = avFrame->nb_samples;
453  max_out_samples = AUBIO_AVCODEC_MAX_BUFFER_SIZE / avCodecCtx->channels;
454  out_samples = swr_convert( avr,
455      (uint8_t **)&output, max_out_samples,
456      (const uint8_t **)avFrame->data, in_samples);
457#endif /* HAVE_AVRESAMPLE || HAVE_SWRESAMPLE */
458  if (out_samples <= 0) {
459    AUBIO_WRN("source_avcodec: no sample found while converting frame (%s)\n",
460        s->path);
461    goto beach;
462  }
463
464  *read_samples = out_samples;
465
466beach:
467  s->avFormatCtx = avFormatCtx;
468  s->avCodecCtx = avCodecCtx;
469  s->avFrame = avFrame;
470#if defined(HAVE_AVRESAMPLE) || defined(HAVE_SWRESAMPLE)
471  s->avr = avr;
472#endif /* HAVE_AVRESAMPLE || HAVE_SWRESAMPLE */
473  s->output = output;
474
475  av_packet_unref(&avPacket);
476}
477
478void aubio_source_avcodec_do(aubio_source_avcodec_t * s, fvec_t * read_data,
479    uint_t * read) {
480  uint_t i, j;
481  uint_t end = 0;
482  uint_t total_wrote = 0;
483  while (total_wrote < s->hop_size) {
484    end = MIN(s->read_samples - s->read_index, s->hop_size - total_wrote);
485    for (i = 0; i < end; i++) {
486      read_data->data[i + total_wrote] = 0.;
487      for (j = 0; j < s->input_channels; j++) {
488        read_data->data[i + total_wrote] +=
489          s->output[(i + s->read_index) * s->input_channels + j];
490      }
491      read_data->data[i + total_wrote] *= 1./s->input_channels;
492    }
493    total_wrote += end;
494    if (total_wrote < s->hop_size) {
495      uint_t avcodec_read = 0;
496      aubio_source_avcodec_readframe(s, &avcodec_read);
497      s->read_samples = avcodec_read;
498      s->read_index = 0;
499      if (s->eof) {
500        break;
501      }
502    } else {
503      s->read_index += end;
504    }
505  }
506  if (total_wrote < s->hop_size) {
507    for (i = total_wrote; i < s->hop_size; i++) {
508      read_data->data[i] = 0.;
509    }
510  }
511  *read = total_wrote;
512}
513
514void aubio_source_avcodec_do_multi(aubio_source_avcodec_t * s,
515    fmat_t * read_data, uint_t * read) {
516  uint_t i,j;
517  uint_t end = 0;
518  uint_t total_wrote = 0;
519  while (total_wrote < s->hop_size) {
520    end = MIN(s->read_samples - s->read_index, s->hop_size - total_wrote);
521    for (j = 0; j < read_data->height; j++) {
522      for (i = 0; i < end; i++) {
523        read_data->data[j][i + total_wrote] =
524          s->output[(i + s->read_index) * s->input_channels + j];
525      }
526    }
527    total_wrote += end;
528    if (total_wrote < s->hop_size) {
529      uint_t avcodec_read = 0;
530      aubio_source_avcodec_readframe(s, &avcodec_read);
531      s->read_samples = avcodec_read;
532      s->read_index = 0;
533      if (s->eof) {
534        break;
535      }
536    } else {
537      s->read_index += end;
538    }
539  }
540  if (total_wrote < s->hop_size) {
541    for (j = 0; j < read_data->height; j++) {
542      for (i = total_wrote; i < s->hop_size; i++) {
543        read_data->data[j][i] = 0.;
544      }
545    }
546  }
547  *read = total_wrote;
548}
549
550uint_t aubio_source_avcodec_get_samplerate(const aubio_source_avcodec_t * s) {
551  return s->samplerate;
552}
553
554uint_t aubio_source_avcodec_get_channels(const aubio_source_avcodec_t * s) {
555  return s->input_channels;
556}
557
558uint_t aubio_source_avcodec_seek (aubio_source_avcodec_t * s, uint_t pos) {
559  int64_t resampled_pos =
560    (uint_t)ROUND(pos * (s->input_samplerate * 1. / s->samplerate));
561  int64_t min_ts = MAX(resampled_pos - 2000, 0);
562  int64_t max_ts = MIN(resampled_pos + 2000, INT64_MAX);
563  int seek_flags = AVSEEK_FLAG_FRAME | AVSEEK_FLAG_ANY;
564  int ret = AUBIO_FAIL;
565  if (s->avFormatCtx != NULL && s->avr != NULL) {
566    ret = AUBIO_OK;
567  } else {
568    AUBIO_ERR("source_avcodec: failed seeking in %s (file not opened?)",
569        s->path);
570    return ret;
571  }
572  if ((sint_t)pos < 0) {
573    AUBIO_ERR("source_avcodec: could not seek %s at %d (seeking position"
574       " should be >= 0)\n", s->path, pos);
575    return AUBIO_FAIL;
576  }
577  ret = avformat_seek_file(s->avFormatCtx, s->selected_stream,
578      min_ts, resampled_pos, max_ts, seek_flags);
579  if (ret < 0) {
580    AUBIO_ERR("source_avcodec: failed seeking to %d in file %s",
581        pos, s->path);
582  }
583  // reset read status
584  s->eof = 0;
585  s->read_index = 0;
586  s->read_samples = 0;
587#ifdef HAVE_AVRESAMPLE
588  // reset the AVAudioResampleContext
589  avresample_close(s->avr);
590  avresample_open(s->avr);
591#elif defined(HAVE_SWRESAMPLE)
592  swr_close(s->avr);
593  swr_init(s->avr);
594#endif
595  return ret;
596}
597
598uint_t aubio_source_avcodec_get_duration (aubio_source_avcodec_t * s) {
599  if (s && &(s->avFormatCtx) != NULL) {
600    int64_t duration = s->avFormatCtx->duration;
601    return s->samplerate * ((uint_t)duration / 1e6 );
602  }
603  return 0;
604}
605
606uint_t aubio_source_avcodec_close(aubio_source_avcodec_t * s) {
607  if (s->avr != NULL) {
608#ifdef HAVE_AVRESAMPLE
609    avresample_close( s->avr );
610#elif defined(HAVE_SWRESAMPLE)
611    swr_close ( s->avr );
612#endif
613    av_free ( s->avr );
614  }
615  s->avr = NULL;
616  if (s->avCodecCtx != NULL) {
617#ifndef HAVE_AUBIO_LIBAVCODEC_DEPRECATED
618    avcodec_free_context( &s->avCodecCtx );
619#else
620    avcodec_close ( s->avCodecCtx );
621#endif
622  }
623  s->avCodecCtx = NULL;
624  if (s->avFormatCtx != NULL) {
625    avformat_close_input(&s->avFormatCtx);
626    s->avFormatCtx = NULL;
627  }
628  av_packet_unref(&s->avPacket);
629  return AUBIO_OK;
630}
631
632void del_aubio_source_avcodec(aubio_source_avcodec_t * s){
633  if (!s) return;
634  aubio_source_avcodec_close(s);
635  if (s->output != NULL) {
636    av_free(s->output);
637  }
638  s->output = NULL;
639  if (s->avFrame != NULL) {
640    av_frame_free( &(s->avFrame) );
641  }
642  s->avFrame = NULL;
643  if (s->path) {
644    AUBIO_FREE(s->path);
645  }
646  s->path = NULL;
647  AUBIO_FREE(s);
648}
649
650#endif /* HAVE_LIBAV */
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