source: src/io/sink_apple_audio.c @ d2be104

feature/autosinkfeature/constantqfeature/pitchshiftfeature/pydocstringsfeature/timestretchpitchshiftsamplertimestretchyinfft+
Last change on this file since d2be104 was d2be104, checked in by Paul Brossier <piem@piem.org>, 4 years ago

src/io/: also copy null ending char

  • Property mode set to 100644
File size: 8.0 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 "config.h"
22
23#ifdef HAVE_SINK_APPLE_AUDIO
24
25#include "aubio_priv.h"
26#include "fvec.h"
27#include "fmat.h"
28#include "io/sink_apple_audio.h"
29
30// CFURLRef, CFURLCreateWithFileSystemPath, ...
31#include <CoreFoundation/CoreFoundation.h>
32// ExtAudioFileRef, AudioStreamBasicDescription, AudioBufferList, ...
33#include <AudioToolbox/AudioToolbox.h>
34
35#define FLOAT_TO_SHORT(x) (short)(x * 32768)
36
37extern int createAubioBufferList(AudioBufferList *bufferList, int channels, int segmentSize);
38extern void freeAudioBufferList(AudioBufferList *bufferList);
39extern CFURLRef createURLFromPath(const char * path);
40char_t *getPrintableOSStatusError(char_t *str, OSStatus error);
41
42uint_t aubio_sink_apple_audio_open(aubio_sink_apple_audio_t *s);
43
44#define MAX_SIZE 4096 // the maximum number of frames that can be written at a time
45
46void aubio_sink_apple_audio_write(aubio_sink_apple_audio_t *s, uint_t write);
47
48struct _aubio_sink_apple_audio_t {
49  uint_t samplerate;
50  uint_t channels;
51  char_t *path;
52
53  uint_t max_frames;
54
55  AudioBufferList bufferList;
56  ExtAudioFileRef audioFile;
57  bool async;
58};
59
60aubio_sink_apple_audio_t * new_aubio_sink_apple_audio(const char_t * uri, uint_t samplerate) {
61  aubio_sink_apple_audio_t * s = AUBIO_NEW(aubio_sink_apple_audio_t);
62  s->max_frames = MAX_SIZE;
63  s->async = false;
64
65  if (uri == NULL) {
66    AUBIO_ERROR("sink_apple_audio: Aborted opening null path\n");
67    goto beach;
68  }
69  if (s->path != NULL) AUBIO_FREE(s->path);
70  s->path = AUBIO_ARRAY(char_t, strnlen(uri, PATH_MAX) + 1);
71  strncpy(s->path, uri, strnlen(uri, PATH_MAX) + 1);
72
73  s->samplerate = 0;
74  s->channels = 0;
75
76  // negative samplerate given, abort
77  if ((sint_t)samplerate < 0) goto beach;
78  // zero samplerate given. do not open yet
79  if ((sint_t)samplerate == 0) return s;
80
81  s->samplerate = samplerate;
82  s->channels = 1;
83
84  if (aubio_sink_apple_audio_open(s) != AUBIO_OK) {
85    // open failed, abort
86    goto beach;
87  }
88
89  return s;
90beach:
91  AUBIO_FREE(s);
92  return NULL;
93}
94
95uint_t aubio_sink_apple_audio_preset_samplerate(aubio_sink_apple_audio_t *s, uint_t samplerate)
96{
97  if ((sint_t)(samplerate) <= 0) return AUBIO_FAIL;
98  s->samplerate = samplerate;
99  // automatically open when both samplerate and channels have been set
100  if (s->samplerate != 0 && s->channels != 0) {
101    return aubio_sink_apple_audio_open(s);
102  }
103  return AUBIO_OK;
104}
105
106uint_t aubio_sink_apple_audio_preset_channels(aubio_sink_apple_audio_t *s, uint_t channels)
107{
108  if ((sint_t)(channels) <= 0) return AUBIO_FAIL;
109  s->channels = channels;
110  // automatically open when both samplerate and channels have been set
111  if (s->samplerate != 0 && s->channels != 0) {
112    return aubio_sink_apple_audio_open(s);
113  }
114  return AUBIO_OK;
115}
116
117uint_t aubio_sink_apple_audio_get_samplerate(const aubio_sink_apple_audio_t *s)
118{
119  return s->samplerate;
120}
121
122uint_t aubio_sink_apple_audio_get_channels(const aubio_sink_apple_audio_t *s)
123{
124  return s->channels;
125}
126
127uint_t aubio_sink_apple_audio_open(aubio_sink_apple_audio_t *s) {
128
129  if (s->samplerate == 0 || s->channels == 0) return AUBIO_FAIL;
130
131  AudioStreamBasicDescription clientFormat;
132  memset(&clientFormat, 0, sizeof(AudioStreamBasicDescription));
133  clientFormat.mFormatID         = kAudioFormatLinearPCM;
134  clientFormat.mSampleRate       = (Float64)(s->samplerate);
135  clientFormat.mFormatFlags      = kAudioFormatFlagIsSignedInteger | kAudioFormatFlagIsPacked;
136  clientFormat.mChannelsPerFrame = s->channels;
137  clientFormat.mBitsPerChannel   = sizeof(short) * 8;
138  clientFormat.mFramesPerPacket  = 1;
139  clientFormat.mBytesPerFrame    = clientFormat.mBitsPerChannel * clientFormat.mChannelsPerFrame / 8;
140  clientFormat.mBytesPerPacket   = clientFormat.mFramesPerPacket * clientFormat.mBytesPerFrame;
141  clientFormat.mReserved         = 0;
142
143  AudioFileTypeID fileType = kAudioFileWAVEType;
144  CFURLRef fileURL = createURLFromPath(s->path);
145  bool overwrite = true;
146  OSStatus err = noErr;
147  err = ExtAudioFileCreateWithURL(fileURL, fileType, &clientFormat, NULL,
148     overwrite ? kAudioFileFlags_EraseFile : 0, &s->audioFile);
149  CFRelease(fileURL);
150  if (err) {
151    char_t errorstr[20];
152    AUBIO_ERR("sink_apple_audio: error when trying to create %s with "
153        "ExtAudioFileCreateWithURL (%s)\n", s->path,
154        getPrintableOSStatusError(errorstr, err));
155    goto beach;
156  }
157  if (createAubioBufferList(&s->bufferList, s->channels, s->max_frames * s->channels)) {
158    AUBIO_ERR("sink_apple_audio: error when creating buffer list for %s, "
159        "out of memory? \n", s->path);
160    goto beach;
161  }
162  return AUBIO_OK;
163
164beach:
165  return AUBIO_FAIL;
166}
167
168void aubio_sink_apple_audio_do(aubio_sink_apple_audio_t * s, fvec_t * write_data, uint_t write) {
169  UInt32 c, v;
170  short *data = (short*)s->bufferList.mBuffers[0].mData;
171  if (write > s->max_frames) {
172    AUBIO_WRN("sink_apple_audio: trying to write %d frames, max %d\n", write, s->max_frames);
173    write = s->max_frames;
174  }
175  smpl_t *buf = write_data->data;
176
177  if (buf) {
178      for (c = 0; c < s->channels; c++) {
179          for (v = 0; v < write; v++) {
180              data[v * s->channels + c] =
181                  FLOAT_TO_SHORT(buf[ v * s->channels + c]);
182          }
183      }
184  }
185  aubio_sink_apple_audio_write(s, write);
186}
187
188void aubio_sink_apple_audio_do_multi(aubio_sink_apple_audio_t * s, fmat_t * write_data, uint_t write) {
189  UInt32 c, v;
190  short *data = (short*)s->bufferList.mBuffers[0].mData;
191  if (write > s->max_frames) {
192    AUBIO_WRN("sink_apple_audio: trying to write %d frames, max %d\n", write, s->max_frames);
193    write = s->max_frames;
194  }
195  smpl_t **buf = write_data->data;
196
197  if (buf) {
198      for (c = 0; c < s->channels; c++) {
199          for (v = 0; v < write; v++) {
200              data[v * s->channels + c] =
201                  FLOAT_TO_SHORT(buf[c][v]);
202          }
203      }
204  }
205  aubio_sink_apple_audio_write(s, write);
206}
207
208void aubio_sink_apple_audio_write(aubio_sink_apple_audio_t *s, uint_t write) {
209  OSStatus err = noErr;
210  if (s->async) {
211    err = ExtAudioFileWriteAsync(s->audioFile, write, &s->bufferList);
212    if (err) {
213      char_t errorstr[20];
214      if (err == kExtAudioFileError_AsyncWriteBufferOverflow) {
215        sprintf(errorstr,"buffer overflow");
216      } else if (err == kExtAudioFileError_AsyncWriteTooLarge) {
217        sprintf(errorstr,"write too large");
218      } else {
219        // unknown error
220        getPrintableOSStatusError(errorstr, err);
221      }
222      AUBIO_ERROR("sink_apple_audio: error while writing %s "
223                  "in ExtAudioFileWriteAsync (%s)\n", s->path, errorstr);
224    }
225  } else {
226    err = ExtAudioFileWrite(s->audioFile, write, &s->bufferList);
227    if (err) {
228      char_t errorstr[20];
229      AUBIO_ERROR("sink_apple_audio: error while writing %s "
230          "in ExtAudioFileWrite (%s)\n", s->path,
231          getPrintableOSStatusError(errorstr, err));
232    }
233  }
234}
235
236uint_t aubio_sink_apple_audio_close(aubio_sink_apple_audio_t * s) {
237  OSStatus err = noErr;
238  if (!s->audioFile) {
239    return AUBIO_FAIL;
240  }
241  err = ExtAudioFileDispose(s->audioFile);
242  if (err) {
243    char_t errorstr[20];
244    AUBIO_ERROR("sink_apple_audio: error while closing %s "
245        "in ExtAudioFileDispose (%s)\n", s->path,
246        getPrintableOSStatusError(errorstr, err));
247  }
248  s->audioFile = NULL;
249  return err;
250}
251
252void del_aubio_sink_apple_audio(aubio_sink_apple_audio_t * s) {
253  if (s->audioFile) aubio_sink_apple_audio_close (s);
254  if (s->path) AUBIO_FREE(s->path);
255  freeAudioBufferList(&s->bufferList);
256  AUBIO_FREE(s);
257  return;
258}
259
260#endif /* HAVE_SINK_APPLE_AUDIO */
Note: See TracBrowser for help on using the repository browser.