source: src/io/sink_apple_audio.c @ 4eb48e6

feature/autosinkfeature/constantqfeature/pitchshiftfeature/timestretch
Last change on this file since 4eb48e6 was 4eb48e6, checked in by Paul Brossier <piem@piem.org>, 23 months ago

[io] validate input in sink_apple_audio_do

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File size: 8.1 KB
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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 "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
34#define FLOAT_TO_SHORT(x) (short)(x * 32768)
35
36extern int createAubioBufferList(AudioBufferList *bufferList, int channels, int segmentSize);
37extern void freeAudioBufferList(AudioBufferList *bufferList);
38extern CFURLRef createURLFromPath(const char * path);
39char_t *getPrintableOSStatusError(char_t *str, OSStatus error);
40
41uint_t aubio_sink_apple_audio_open(aubio_sink_apple_audio_t *s);
42
43#define MAX_SIZE 4096 // the maximum number of frames that can be written at a time
44
45void aubio_sink_apple_audio_write(aubio_sink_apple_audio_t *s, uint_t write);
46
47struct _aubio_sink_apple_audio_t {
48  uint_t samplerate;
49  uint_t channels;
50  char_t *path;
51
52  uint_t max_frames;
53
54  AudioBufferList bufferList;
55  ExtAudioFileRef audioFile;
56  bool async;
57};
58
59aubio_sink_apple_audio_t * new_aubio_sink_apple_audio(const char_t * uri, uint_t samplerate) {
60  aubio_sink_apple_audio_t * s = AUBIO_NEW(aubio_sink_apple_audio_t);
61  s->max_frames = MAX_SIZE;
62  s->async = false;
63
64  if ( (uri == NULL) || (strlen(uri) < 1) ) {
65    AUBIO_ERROR("sink_apple_audio: Aborted opening null path\n");
66    goto beach;
67  }
68  if (s->path != NULL) AUBIO_FREE(s->path);
69  s->path = AUBIO_ARRAY(char_t, strnlen(uri, PATH_MAX) + 1);
70  strncpy(s->path, uri, strnlen(uri, PATH_MAX) + 1);
71
72  s->samplerate = 0;
73  s->channels = 0;
74
75  // zero samplerate given. do not open yet
76  if ((sint_t)samplerate == 0) {
77    return s;
78  }
79  // invalid samplerate given, abort
80  if (aubio_io_validate_samplerate("sink_apple_audio", s->path, samplerate)) {
81    goto beach;
82  }
83
84  s->samplerate = samplerate;
85  s->channels = 1;
86
87  if (aubio_sink_apple_audio_open(s) != AUBIO_OK) {
88    // open failed, abort
89    goto beach;
90  }
91
92  return s;
93beach:
94  AUBIO_FREE(s);
95  return NULL;
96}
97
98uint_t aubio_sink_apple_audio_preset_samplerate(aubio_sink_apple_audio_t *s, uint_t samplerate)
99{
100  if (aubio_io_validate_samplerate("sink_apple_audio", s->path, samplerate)) {
101    return AUBIO_FAIL;
102  }
103  s->samplerate = samplerate;
104  // automatically open when both samplerate and channels have been set
105  if (s->samplerate != 0 && s->channels != 0) {
106    return aubio_sink_apple_audio_open(s);
107  }
108  return AUBIO_OK;
109}
110
111uint_t aubio_sink_apple_audio_preset_channels(aubio_sink_apple_audio_t *s, uint_t channels)
112{
113  if (aubio_io_validate_channels("sink_apple_audio", s->path, channels)) {
114    return AUBIO_FAIL;
115  }
116  s->channels = channels;
117  // automatically open when both samplerate and channels have been set
118  if (s->samplerate != 0 && s->channels != 0) {
119    return aubio_sink_apple_audio_open(s);
120  }
121  return AUBIO_OK;
122}
123
124uint_t aubio_sink_apple_audio_get_samplerate(const aubio_sink_apple_audio_t *s)
125{
126  return s->samplerate;
127}
128
129uint_t aubio_sink_apple_audio_get_channels(const aubio_sink_apple_audio_t *s)
130{
131  return s->channels;
132}
133
134uint_t aubio_sink_apple_audio_open(aubio_sink_apple_audio_t *s) {
135
136  if (s->samplerate == 0 || s->channels == 0) return AUBIO_FAIL;
137
138  AudioStreamBasicDescription clientFormat;
139  memset(&clientFormat, 0, sizeof(AudioStreamBasicDescription));
140  clientFormat.mFormatID         = kAudioFormatLinearPCM;
141  clientFormat.mSampleRate       = (Float64)(s->samplerate);
142  clientFormat.mFormatFlags      = kAudioFormatFlagIsSignedInteger | kAudioFormatFlagIsPacked;
143  clientFormat.mChannelsPerFrame = s->channels;
144  clientFormat.mBitsPerChannel   = sizeof(short) * 8;
145  clientFormat.mFramesPerPacket  = 1;
146  clientFormat.mBytesPerFrame    = clientFormat.mBitsPerChannel * clientFormat.mChannelsPerFrame / 8;
147  clientFormat.mBytesPerPacket   = clientFormat.mFramesPerPacket * clientFormat.mBytesPerFrame;
148  clientFormat.mReserved         = 0;
149
150  AudioFileTypeID fileType = kAudioFileWAVEType;
151  CFURLRef fileURL = createURLFromPath(s->path);
152  bool overwrite = true;
153  OSStatus err = noErr;
154  err = ExtAudioFileCreateWithURL(fileURL, fileType, &clientFormat, NULL,
155     overwrite ? kAudioFileFlags_EraseFile : 0, &s->audioFile);
156  CFRelease(fileURL);
157  if (err) {
158    char_t errorstr[20];
159    AUBIO_ERR("sink_apple_audio: error when trying to create %s with "
160        "ExtAudioFileCreateWithURL (%s)\n", s->path,
161        getPrintableOSStatusError(errorstr, err));
162    goto beach;
163  }
164  if (createAubioBufferList(&s->bufferList, s->channels, s->max_frames * s->channels)) {
165    AUBIO_ERR("sink_apple_audio: error when creating buffer list for %s, "
166        "out of memory? \n", s->path);
167    goto beach;
168  }
169  return AUBIO_OK;
170
171beach:
172  return AUBIO_FAIL;
173}
174
175void aubio_sink_apple_audio_do(aubio_sink_apple_audio_t * s, fvec_t * write_data, uint_t write) {
176  UInt32 c, v;
177  short *data = (short*)s->bufferList.mBuffers[0].mData;
178  uint_t length = aubio_sink_validate_input_length("sink_apple_audio", s->path,
179      s->max_frames, write_data->length, write);
180
181  for (c = 0; c < s->channels; c++) {
182    for (v = 0; v < length; v++) {
183      data[v * s->channels + c] = FLOAT_TO_SHORT(write_data->data[v]);
184    }
185  }
186
187  aubio_sink_apple_audio_write(s, length);
188}
189
190void aubio_sink_apple_audio_do_multi(aubio_sink_apple_audio_t * s, fmat_t * write_data, uint_t write) {
191  UInt32 c, v;
192  short *data = (short*)s->bufferList.mBuffers[0].mData;
193  uint_t channels = aubio_sink_validate_input_channels("sink_apple_audio",
194      s->path, s->channels, write_data->height);
195  uint_t length = aubio_sink_validate_input_length("sink_apple_audio", s->path,
196      s->max_frames, write_data->length, write);
197
198  for (c = 0; c < channels; c++) {
199    for (v = 0; v < length; v++) {
200      data[v * s->channels + c] = FLOAT_TO_SHORT(write_data->data[c][v]);
201    }
202  }
203
204  aubio_sink_apple_audio_write(s, length);
205}
206
207void aubio_sink_apple_audio_write(aubio_sink_apple_audio_t *s, uint_t write) {
208  OSStatus err = noErr;
209  if (s->async) {
210    err = ExtAudioFileWriteAsync(s->audioFile, write, &s->bufferList);
211    if (err) {
212      char_t errorstr[20];
213      if (err == kExtAudioFileError_AsyncWriteBufferOverflow) {
214        sprintf(errorstr,"buffer overflow");
215      } else if (err == kExtAudioFileError_AsyncWriteTooLarge) {
216        sprintf(errorstr,"write too large");
217      } else {
218        // unknown error
219        getPrintableOSStatusError(errorstr, err);
220      }
221      AUBIO_ERROR("sink_apple_audio: error while writing %s "
222                  "in ExtAudioFileWriteAsync (%s)\n", s->path, errorstr);
223    }
224  } else {
225    err = ExtAudioFileWrite(s->audioFile, write, &s->bufferList);
226    if (err) {
227      char_t errorstr[20];
228      AUBIO_ERROR("sink_apple_audio: error while writing %s "
229          "in ExtAudioFileWrite (%s)\n", s->path,
230          getPrintableOSStatusError(errorstr, err));
231    }
232  }
233}
234
235uint_t aubio_sink_apple_audio_close(aubio_sink_apple_audio_t * s) {
236  OSStatus err = noErr;
237  if (!s->audioFile) {
238    return AUBIO_FAIL;
239  }
240  err = ExtAudioFileDispose(s->audioFile);
241  if (err) {
242    char_t errorstr[20];
243    AUBIO_ERROR("sink_apple_audio: error while closing %s "
244        "in ExtAudioFileDispose (%s)\n", s->path,
245        getPrintableOSStatusError(errorstr, err));
246  }
247  s->audioFile = NULL;
248  return err;
249}
250
251void del_aubio_sink_apple_audio(aubio_sink_apple_audio_t * s) {
252  if (s->audioFile) aubio_sink_apple_audio_close (s);
253  if (s->path) AUBIO_FREE(s->path);
254  freeAudioBufferList(&s->bufferList);
255  AUBIO_FREE(s);
256  return;
257}
258
259#endif /* HAVE_SINK_APPLE_AUDIO */
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