source: src/io/sink_apple_audio.c @ 4bc92c0

feature/autosinkfeature/constantqfeature/pitchshiftfeature/pydocstringsfeature/timestretchpitchshiftsamplertimestretchyinfft+
Last change on this file since 4bc92c0 was 4bc92c0, checked in by Paul Brossier <piem@piem.org>, 6 years ago

src/io/sink_apple_audio.c: switch to sync mode if async fails

  • Property mode set to 100644
File size: 4.7 KB
Line 
1/*
2  Copyright (C) 2012 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 __APPLE__
24
25#include "aubio_priv.h"
26#include "fvec.h"
27#include "io/sink_apple_audio.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 getURLFromPath(const char * path);
39
40#define MAX_SIZE 4096 // the maximum number of frames that can be written at a time
41
42struct _aubio_sink_apple_audio_t {
43  uint_t samplerate;
44  uint_t channels;
45  char_t *path;
46
47  uint_t max_frames;
48
49  AudioBufferList bufferList;
50  ExtAudioFileRef audioFile;
51  bool async;
52};
53
54aubio_sink_apple_audio_t * new_aubio_sink_apple_audio(char_t * uri, uint_t samplerate) {
55  aubio_sink_apple_audio_t * s = AUBIO_NEW(aubio_sink_apple_audio_t);
56  s->samplerate = samplerate;
57  s->channels = 1;
58  s->path = uri;
59  s->max_frames = MAX_SIZE;
60  s->async = true;
61
62  AudioStreamBasicDescription clientFormat;
63  memset(&clientFormat, 0, sizeof(AudioStreamBasicDescription));
64  clientFormat.mFormatID         = kAudioFormatLinearPCM;
65  clientFormat.mSampleRate       = (Float64)(s->samplerate);
66  clientFormat.mFormatFlags      = kAudioFormatFlagIsSignedInteger | kAudioFormatFlagIsPacked;
67  clientFormat.mChannelsPerFrame = s->channels;
68  clientFormat.mBitsPerChannel   = sizeof(short) * 8;
69  clientFormat.mFramesPerPacket  = 1;
70  clientFormat.mBytesPerFrame    = clientFormat.mBitsPerChannel * clientFormat.mChannelsPerFrame / 8;
71  clientFormat.mBytesPerPacket   = clientFormat.mFramesPerPacket * clientFormat.mBytesPerFrame;
72  clientFormat.mReserved         = 0;
73
74  AudioFileTypeID fileType = kAudioFileWAVEType;
75  CFURLRef fileURL = getURLFromPath(uri);
76  bool overwrite = true;
77  OSStatus err = noErr;
78  err = ExtAudioFileCreateWithURL(fileURL, fileType, &clientFormat, NULL,
79     overwrite ? kAudioFileFlags_EraseFile : 0, &s->audioFile);
80  if (err) {
81    AUBIO_ERR("error when trying to create %s, in ExtAudioFileCreateWithURL, %d\n", s->path, (int)err);
82    goto beach;
83  }
84  if (createAubioBufferList(&s->bufferList, s->channels, s->max_frames * s->channels)) {
85    AUBIO_ERR("error when creating buffer list for %s, out of memory? \n", s->path);
86    goto beach;
87  }
88  return s;
89
90beach:
91  AUBIO_FREE(s);
92  return NULL;
93}
94
95void aubio_sink_apple_audio_do(aubio_sink_apple_audio_t * s, fvec_t * write_data, uint_t write) {
96  OSStatus err = noErr;
97  UInt32 c, v;
98  short *data = (short*)s->bufferList.mBuffers[0].mData;
99  if (write > s->max_frames) {
100    AUBIO_WRN("sink_apple_audio: trying to write %d frames, max %d\n", write, s->max_frames);
101    write = s->max_frames;
102  }
103  smpl_t *buf = write_data->data;
104
105  if (buf) {
106      for (c = 0; c < s->channels; c++) {
107          for (v = 0; v < write; v++) {
108              data[v * s->channels + c] =
109                  FLOAT_TO_SHORT(buf[ v * s->channels + c]);
110          }
111      }
112  }
113  if (s->async) {
114    err = ExtAudioFileWriteAsync(s->audioFile, write, &s->bufferList);
115
116    if (err) {
117      AUBIO_ERROR("in aubio_sink_apple_audio_do, writing %s\n", s->path);
118      AUBIO_ERROR("ExtAudioFileWriteAsync failed with %d, switching to sync\n", (int)err);
119      s->async = false;
120    } else {
121      return;
122    }
123
124  } else {
125    err = ExtAudioFileWrite(s->audioFile, write, &s->bufferList);
126
127    if (err) {
128      AUBIO_ERROR("in aubio_sink_apple_audio_do, writing %s\n", s->path);
129      AUBIO_ERROR("ExtAudioFileWrite failed with %d, aborting\n", (int)err);
130    }
131  }
132  return;
133}
134
135void del_aubio_sink_apple_audio(aubio_sink_apple_audio_t * s) {
136  OSStatus err = noErr;
137  if (!s || !s->audioFile) {
138    AUBIO_ERR("failed erasing sink_apple_audio\n");
139    return;
140  }
141  err = ExtAudioFileDispose(s->audioFile);
142  if (err) AUBIO_ERROR("error in ExtAudioFileDispose, %d\n", (int)err);
143  s->audioFile = NULL;
144  freeAudioBufferList(&s->bufferList);
145  AUBIO_FREE(s);
146  return;
147}
148
149#endif /* __APPLE__ */
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