source: src/io/sink_apple_audio.c @ b40c149

feature/autosinkfeature/constantqfeature/pitchshiftfeature/timestretch
Last change on this file since b40c149 was 7b5e1a5, checked in by Paul Brossier <piem@piem.org>, 11 months ago

[io] sink_apple_audio to use native format conversion

The important trick here is setting mDataByteSize to the actual number
of frames to be written, as mentionned by James McCartney? in [0].

[0]:https://www.mail-archive.com/coreaudio-api@lists.apple.com/msg01109.html

  • Property mode set to 100644
File size: 9.3 KB
Line 
1/*
2  Copyright (C) 2012-2014 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_SINK_APPLE_AUDIO
24#include "fvec.h"
25#include "fmat.h"
26#include "io/sink_apple_audio.h"
27#include "io/ioutils.h"
28
29// CFURLRef, CFURLCreateWithFileSystemPath, ...
30#include <CoreFoundation/CoreFoundation.h>
31// ExtAudioFileRef, AudioStreamBasicDescription, AudioBufferList, ...
32#include <AudioToolbox/AudioToolbox.h>
33
34extern int createAudioBufferList(AudioBufferList *bufferList, int channels, int segmentSize);
35extern void freeAudioBufferList(AudioBufferList *bufferList);
36extern CFURLRef createURLFromPath(const char * path);
37char_t *getPrintableOSStatusError(char_t *str, OSStatus error);
38
39uint_t aubio_sink_apple_audio_open(aubio_sink_apple_audio_t *s);
40
41#define MAX_SIZE 4096 // the maximum number of frames that can be written at a time
42
43void aubio_sink_apple_audio_write(aubio_sink_apple_audio_t *s, uint_t write);
44
45struct _aubio_sink_apple_audio_t {
46  uint_t samplerate;
47  uint_t channels;
48  char_t *path;
49
50  uint_t max_frames;
51
52  AudioBufferList bufferList;
53  ExtAudioFileRef audioFile;
54  bool async;
55};
56
57aubio_sink_apple_audio_t * new_aubio_sink_apple_audio(const char_t * uri, uint_t samplerate) {
58  aubio_sink_apple_audio_t * s = AUBIO_NEW(aubio_sink_apple_audio_t);
59  s->max_frames = MAX_SIZE;
60  s->async = false;
61
62  if ( (uri == NULL) || (strnlen(uri, PATH_MAX) < 1) ) {
63    AUBIO_ERROR("sink_apple_audio: Aborted opening null path\n");
64    goto beach;
65  }
66
67  s->path = AUBIO_ARRAY(char_t, strnlen(uri, PATH_MAX) + 1);
68  strncpy(s->path, uri, strnlen(uri, PATH_MAX) + 1);
69
70  s->samplerate = 0;
71  s->channels = 0;
72
73  // zero samplerate given. do not open yet
74  if ((sint_t)samplerate == 0) {
75    return s;
76  }
77
78  // invalid samplerate given, abort
79  if (aubio_io_validate_samplerate("sink_apple_audio", s->path, samplerate)) {
80    goto beach;
81  }
82
83  s->samplerate = samplerate;
84  s->channels = 1;
85
86  if (aubio_sink_apple_audio_open(s) != AUBIO_OK) {
87    // open failed, abort
88    goto beach;
89  }
90
91  return s;
92beach:
93  del_aubio_sink_apple_audio(s);
94  return NULL;
95}
96
97uint_t aubio_sink_apple_audio_preset_samplerate(aubio_sink_apple_audio_t *s, uint_t samplerate)
98{
99  if (aubio_io_validate_samplerate("sink_apple_audio", s->path, samplerate)) {
100    return AUBIO_FAIL;
101  }
102  s->samplerate = samplerate;
103  // automatically open when both samplerate and channels have been set
104  if (/* s->samplerate != 0 && */ s->channels != 0) {
105    return aubio_sink_apple_audio_open(s);
106  }
107  return AUBIO_OK;
108}
109
110uint_t aubio_sink_apple_audio_preset_channels(aubio_sink_apple_audio_t *s, uint_t channels)
111{
112  if (aubio_io_validate_channels("sink_apple_audio", s->path, channels)) {
113    return AUBIO_FAIL;
114  }
115  s->channels = channels;
116  // automatically open when both samplerate and channels have been set
117  if (s->samplerate != 0 /* && s->channels != 0 */) {
118    return aubio_sink_apple_audio_open(s);
119  }
120  return AUBIO_OK;
121}
122
123uint_t aubio_sink_apple_audio_get_samplerate(const aubio_sink_apple_audio_t *s)
124{
125  return s->samplerate;
126}
127
128uint_t aubio_sink_apple_audio_get_channels(const aubio_sink_apple_audio_t *s)
129{
130  return s->channels;
131}
132
133uint_t aubio_sink_apple_audio_open(aubio_sink_apple_audio_t *s) {
134
135  if (s->samplerate == 0 || s->channels == 0) return AUBIO_FAIL;
136
137  AudioStreamBasicDescription clientFormat;
138  memset(&clientFormat, 0, sizeof(AudioStreamBasicDescription));
139  clientFormat.mFormatID         = kAudioFormatLinearPCM;
140  clientFormat.mSampleRate       = (Float64)(s->samplerate);
141  clientFormat.mFormatFlags      = kAudioFormatFlagIsSignedInteger | kAudioFormatFlagIsPacked;
142  clientFormat.mChannelsPerFrame = s->channels;
143  clientFormat.mBitsPerChannel   = sizeof(short) * 8;
144  clientFormat.mFramesPerPacket  = 1;
145  clientFormat.mBytesPerFrame    = clientFormat.mBitsPerChannel * clientFormat.mChannelsPerFrame / 8;
146  clientFormat.mBytesPerPacket   = clientFormat.mFramesPerPacket * clientFormat.mBytesPerFrame;
147  clientFormat.mReserved         = 0;
148
149  AudioFileTypeID fileType = kAudioFileWAVEType;
150  CFURLRef fileURL = createURLFromPath(s->path);
151  bool overwrite = true;
152
153  // set the in-memory format
154  AudioStreamBasicDescription inputFormat;
155  memset(&inputFormat, 0, sizeof(AudioStreamBasicDescription));
156  inputFormat.mFormatID         = kAudioFormatLinearPCM;
157  inputFormat.mSampleRate       = (Float64)(s->samplerate);
158  inputFormat.mFormatFlags      = kAudioFormatFlagIsFloat | kAudioFormatFlagIsPacked;
159  inputFormat.mChannelsPerFrame = s->channels;
160  inputFormat.mBitsPerChannel   = sizeof(smpl_t) * 8;
161  inputFormat.mFramesPerPacket  = 1;
162  inputFormat.mBytesPerFrame    = inputFormat.mBitsPerChannel * inputFormat.mChannelsPerFrame / 8;
163  inputFormat.mBytesPerPacket   = inputFormat.mFramesPerPacket * inputFormat.mBytesPerFrame;
164  OSStatus err = noErr;
165  err = ExtAudioFileCreateWithURL(fileURL, fileType, &clientFormat, NULL,
166     overwrite ? kAudioFileFlags_EraseFile : 0, &s->audioFile);
167  CFRelease(fileURL);
168  if (err) {
169    char_t errorstr[20];
170    AUBIO_ERR("sink_apple_audio: error when trying to create %s with "
171        "ExtAudioFileCreateWithURL (%s)\n", s->path,
172        getPrintableOSStatusError(errorstr, err));
173    goto beach;
174  }
175
176  err = ExtAudioFileSetProperty(s->audioFile,
177      kExtAudioFileProperty_ClientDataFormat,
178      sizeof(AudioStreamBasicDescription), &inputFormat);
179  if (err) {
180    char_t errorstr[20];
181    AUBIO_ERR("sink_apple_audio: error when trying to set output format on %s "
182        "(%s)\n", s->path, getPrintableOSStatusError(errorstr, err));
183    goto beach;
184  }
185
186  if (createAudioBufferList(&s->bufferList, s->channels, s->max_frames * s->channels)) {
187    AUBIO_ERR("sink_apple_audio: error when creating buffer list for %s, "
188        "out of memory? \n", s->path);
189    goto beach;
190  }
191  return AUBIO_OK;
192
193beach:
194  return AUBIO_FAIL;
195}
196
197void aubio_sink_apple_audio_do(aubio_sink_apple_audio_t * s, fvec_t * write_data, uint_t write) {
198  UInt32 c, v;
199  smpl_t *data = (smpl_t*)s->bufferList.mBuffers[0].mData;
200  uint_t length = aubio_sink_validate_input_length("sink_apple_audio", s->path,
201      s->max_frames, write_data->length, write);
202
203  for (c = 0; c < s->channels; c++) {
204    for (v = 0; v < length; v++) {
205      data[v * s->channels + c] = write_data->data[v];
206    }
207  }
208
209  aubio_sink_apple_audio_write(s, length);
210}
211
212void aubio_sink_apple_audio_do_multi(aubio_sink_apple_audio_t * s, fmat_t * write_data, uint_t write) {
213  UInt32 c, v;
214  smpl_t *data = (smpl_t*)s->bufferList.mBuffers[0].mData;
215  uint_t channels = aubio_sink_validate_input_channels("sink_apple_audio",
216      s->path, s->channels, write_data->height);
217  uint_t length = aubio_sink_validate_input_length("sink_apple_audio", s->path,
218      s->max_frames, write_data->length, write);
219
220  for (c = 0; c < channels; c++) {
221    for (v = 0; v < length; v++) {
222      data[v * s->channels + c] = write_data->data[c][v];
223    }
224  }
225
226  aubio_sink_apple_audio_write(s, length);
227}
228
229void aubio_sink_apple_audio_write(aubio_sink_apple_audio_t *s, uint_t write) {
230  OSStatus err = noErr;
231  // set mDataByteSize to match the number of frames to be written
232  // see https://www.mail-archive.com/coreaudio-api@lists.apple.com/msg01109.html
233  s->bufferList.mBuffers[0].mDataByteSize = write * s->channels
234    * sizeof(smpl_t);
235  if (s->async) {
236    err = ExtAudioFileWriteAsync(s->audioFile, write, &s->bufferList);
237    if (err) {
238      char_t errorstr[20];
239      if (err == kExtAudioFileError_AsyncWriteBufferOverflow) {
240        sprintf(errorstr,"buffer overflow");
241      } else if (err == kExtAudioFileError_AsyncWriteTooLarge) {
242        sprintf(errorstr,"write too large");
243      } else {
244        // unknown error
245        getPrintableOSStatusError(errorstr, err);
246      }
247      AUBIO_ERROR("sink_apple_audio: error while writing %s "
248                  "in ExtAudioFileWriteAsync (%s)\n", s->path, errorstr);
249    }
250  } else {
251    err = ExtAudioFileWrite(s->audioFile, write, &s->bufferList);
252    if (err) {
253      char_t errorstr[20];
254      AUBIO_ERROR("sink_apple_audio: error while writing %s "
255          "in ExtAudioFileWrite (%s)\n", s->path,
256          getPrintableOSStatusError(errorstr, err));
257    }
258  }
259}
260
261uint_t aubio_sink_apple_audio_close(aubio_sink_apple_audio_t * s) {
262  OSStatus err = noErr;
263  if (!s->audioFile) {
264    return AUBIO_FAIL;
265  }
266  err = ExtAudioFileDispose(s->audioFile);
267  if (err) {
268    char_t errorstr[20];
269    AUBIO_ERROR("sink_apple_audio: error while closing %s "
270        "in ExtAudioFileDispose (%s)\n", s->path,
271        getPrintableOSStatusError(errorstr, err));
272  }
273  s->audioFile = NULL;
274  return err;
275}
276
277void del_aubio_sink_apple_audio(aubio_sink_apple_audio_t * s) {
278  AUBIO_ASSERT(s);
279  if (s->audioFile)
280    aubio_sink_apple_audio_close (s);
281  if (s->path)
282    AUBIO_FREE(s->path);
283  freeAudioBufferList(&s->bufferList);
284  AUBIO_FREE(s);
285}
286
287#endif /* HAVE_SINK_APPLE_AUDIO */
Note: See TracBrowser for help on using the repository browser.