source: src/io/sink_apple_audio.c @ 31c306a

feature/autosinkfeature/constantqfeature/pitchshiftfeature/pydocstringsfeature/timestretchsampleryinfft+
Last change on this file since 31c306a was 31c306a, checked in by Paul Brossier <piem@piem.org>, 3 years ago

src/io/sink_apple_audio.c: avoid crash on empty file name

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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#include "io/ioutils.h"
30
31// CFURLRef, CFURLCreateWithFileSystemPath, ...
32#include <CoreFoundation/CoreFoundation.h>
33// ExtAudioFileRef, AudioStreamBasicDescription, AudioBufferList, ...
34#include <AudioToolbox/AudioToolbox.h>
35
36#define FLOAT_TO_SHORT(x) (short)(x * 32768)
37
38extern int createAubioBufferList(AudioBufferList *bufferList, int channels, int segmentSize);
39extern void freeAudioBufferList(AudioBufferList *bufferList);
40extern CFURLRef createURLFromPath(const char * path);
41char_t *getPrintableOSStatusError(char_t *str, OSStatus error);
42
43uint_t aubio_sink_apple_audio_open(aubio_sink_apple_audio_t *s);
44
45#define MAX_SIZE 4096 // the maximum number of frames that can be written at a time
46
47void aubio_sink_apple_audio_write(aubio_sink_apple_audio_t *s, uint_t write);
48
49struct _aubio_sink_apple_audio_t {
50  uint_t samplerate;
51  uint_t channels;
52  char_t *path;
53
54  uint_t max_frames;
55
56  AudioBufferList bufferList;
57  ExtAudioFileRef audioFile;
58  bool async;
59};
60
61aubio_sink_apple_audio_t * new_aubio_sink_apple_audio(const char_t * uri, uint_t samplerate) {
62  aubio_sink_apple_audio_t * s = AUBIO_NEW(aubio_sink_apple_audio_t);
63  s->max_frames = MAX_SIZE;
64  s->async = false;
65
66  if ( (uri == NULL) || (strlen(uri) < 1) ) {
67    AUBIO_ERROR("sink_apple_audio: Aborted opening null path\n");
68    goto beach;
69  }
70  if (s->path != NULL) AUBIO_FREE(s->path);
71  s->path = AUBIO_ARRAY(char_t, strnlen(uri, PATH_MAX) + 1);
72  strncpy(s->path, uri, strnlen(uri, PATH_MAX) + 1);
73
74  s->samplerate = 0;
75  s->channels = 0;
76
77  // zero samplerate given. do not open yet
78  if ((sint_t)samplerate == 0) {
79    return s;
80  }
81  // invalid samplerate given, abort
82  if (aubio_io_validate_samplerate("sink_apple_audio", s->path, samplerate)) {
83    goto beach;
84  }
85
86  s->samplerate = samplerate;
87  s->channels = 1;
88
89  if (aubio_sink_apple_audio_open(s) != AUBIO_OK) {
90    // open failed, abort
91    goto beach;
92  }
93
94  return s;
95beach:
96  AUBIO_FREE(s);
97  return NULL;
98}
99
100uint_t aubio_sink_apple_audio_preset_samplerate(aubio_sink_apple_audio_t *s, uint_t samplerate)
101{
102  if (aubio_io_validate_samplerate("sink_apple_audio", s->path, samplerate)) {
103    return AUBIO_FAIL;
104  }
105  s->samplerate = samplerate;
106  // automatically open when both samplerate and channels have been set
107  if (s->samplerate != 0 && s->channels != 0) {
108    return aubio_sink_apple_audio_open(s);
109  }
110  return AUBIO_OK;
111}
112
113uint_t aubio_sink_apple_audio_preset_channels(aubio_sink_apple_audio_t *s, uint_t channels)
114{
115  if (aubio_io_validate_channels("sink_apple_audio", s->path, channels)) {
116    return AUBIO_FAIL;
117  }
118  s->channels = channels;
119  // automatically open when both samplerate and channels have been set
120  if (s->samplerate != 0 && s->channels != 0) {
121    return aubio_sink_apple_audio_open(s);
122  }
123  return AUBIO_OK;
124}
125
126uint_t aubio_sink_apple_audio_get_samplerate(const aubio_sink_apple_audio_t *s)
127{
128  return s->samplerate;
129}
130
131uint_t aubio_sink_apple_audio_get_channels(const aubio_sink_apple_audio_t *s)
132{
133  return s->channels;
134}
135
136uint_t aubio_sink_apple_audio_open(aubio_sink_apple_audio_t *s) {
137
138  if (s->samplerate == 0 || s->channels == 0) return AUBIO_FAIL;
139
140  AudioStreamBasicDescription clientFormat;
141  memset(&clientFormat, 0, sizeof(AudioStreamBasicDescription));
142  clientFormat.mFormatID         = kAudioFormatLinearPCM;
143  clientFormat.mSampleRate       = (Float64)(s->samplerate);
144  clientFormat.mFormatFlags      = kAudioFormatFlagIsSignedInteger | kAudioFormatFlagIsPacked;
145  clientFormat.mChannelsPerFrame = s->channels;
146  clientFormat.mBitsPerChannel   = sizeof(short) * 8;
147  clientFormat.mFramesPerPacket  = 1;
148  clientFormat.mBytesPerFrame    = clientFormat.mBitsPerChannel * clientFormat.mChannelsPerFrame / 8;
149  clientFormat.mBytesPerPacket   = clientFormat.mFramesPerPacket * clientFormat.mBytesPerFrame;
150  clientFormat.mReserved         = 0;
151
152  AudioFileTypeID fileType = kAudioFileWAVEType;
153  CFURLRef fileURL = createURLFromPath(s->path);
154  bool overwrite = true;
155  OSStatus err = noErr;
156  err = ExtAudioFileCreateWithURL(fileURL, fileType, &clientFormat, NULL,
157     overwrite ? kAudioFileFlags_EraseFile : 0, &s->audioFile);
158  CFRelease(fileURL);
159  if (err) {
160    char_t errorstr[20];
161    AUBIO_ERR("sink_apple_audio: error when trying to create %s with "
162        "ExtAudioFileCreateWithURL (%s)\n", s->path,
163        getPrintableOSStatusError(errorstr, err));
164    goto beach;
165  }
166  if (createAubioBufferList(&s->bufferList, s->channels, s->max_frames * s->channels)) {
167    AUBIO_ERR("sink_apple_audio: error when creating buffer list for %s, "
168        "out of memory? \n", s->path);
169    goto beach;
170  }
171  return AUBIO_OK;
172
173beach:
174  return AUBIO_FAIL;
175}
176
177void aubio_sink_apple_audio_do(aubio_sink_apple_audio_t * s, fvec_t * write_data, uint_t write) {
178  UInt32 c, v;
179  short *data = (short*)s->bufferList.mBuffers[0].mData;
180  if (write > s->max_frames) {
181    AUBIO_WRN("sink_apple_audio: trying to write %d frames, max %d\n", write, s->max_frames);
182    write = s->max_frames;
183  }
184  smpl_t *buf = write_data->data;
185
186  if (buf) {
187      for (c = 0; c < s->channels; c++) {
188          for (v = 0; v < write; v++) {
189              data[v * s->channels + c] =
190                  FLOAT_TO_SHORT(buf[ v * s->channels + c]);
191          }
192      }
193  }
194  aubio_sink_apple_audio_write(s, write);
195}
196
197void aubio_sink_apple_audio_do_multi(aubio_sink_apple_audio_t * s, fmat_t * write_data, uint_t write) {
198  UInt32 c, v;
199  short *data = (short*)s->bufferList.mBuffers[0].mData;
200  if (write > s->max_frames) {
201    AUBIO_WRN("sink_apple_audio: trying to write %d frames, max %d\n", write, s->max_frames);
202    write = s->max_frames;
203  }
204  smpl_t **buf = write_data->data;
205
206  if (buf) {
207      for (c = 0; c < s->channels; c++) {
208          for (v = 0; v < write; v++) {
209              data[v * s->channels + c] =
210                  FLOAT_TO_SHORT(buf[c][v]);
211          }
212      }
213  }
214  aubio_sink_apple_audio_write(s, write);
215}
216
217void aubio_sink_apple_audio_write(aubio_sink_apple_audio_t *s, uint_t write) {
218  OSStatus err = noErr;
219  if (s->async) {
220    err = ExtAudioFileWriteAsync(s->audioFile, write, &s->bufferList);
221    if (err) {
222      char_t errorstr[20];
223      if (err == kExtAudioFileError_AsyncWriteBufferOverflow) {
224        sprintf(errorstr,"buffer overflow");
225      } else if (err == kExtAudioFileError_AsyncWriteTooLarge) {
226        sprintf(errorstr,"write too large");
227      } else {
228        // unknown error
229        getPrintableOSStatusError(errorstr, err);
230      }
231      AUBIO_ERROR("sink_apple_audio: error while writing %s "
232                  "in ExtAudioFileWriteAsync (%s)\n", s->path, errorstr);
233    }
234  } else {
235    err = ExtAudioFileWrite(s->audioFile, write, &s->bufferList);
236    if (err) {
237      char_t errorstr[20];
238      AUBIO_ERROR("sink_apple_audio: error while writing %s "
239          "in ExtAudioFileWrite (%s)\n", s->path,
240          getPrintableOSStatusError(errorstr, err));
241    }
242  }
243}
244
245uint_t aubio_sink_apple_audio_close(aubio_sink_apple_audio_t * s) {
246  OSStatus err = noErr;
247  if (!s->audioFile) {
248    return AUBIO_FAIL;
249  }
250  err = ExtAudioFileDispose(s->audioFile);
251  if (err) {
252    char_t errorstr[20];
253    AUBIO_ERROR("sink_apple_audio: error while closing %s "
254        "in ExtAudioFileDispose (%s)\n", s->path,
255        getPrintableOSStatusError(errorstr, err));
256  }
257  s->audioFile = NULL;
258  return err;
259}
260
261void del_aubio_sink_apple_audio(aubio_sink_apple_audio_t * s) {
262  if (s->audioFile) aubio_sink_apple_audio_close (s);
263  if (s->path) AUBIO_FREE(s->path);
264  freeAudioBufferList(&s->bufferList);
265  AUBIO_FREE(s);
266  return;
267}
268
269#endif /* HAVE_SINK_APPLE_AUDIO */
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