*/
-#ifdef __APPLE__
-#include "config.h"
#include "aubio_priv.h"
+
+#ifdef HAVE_SOURCE_APPLE_AUDIO
+
#include "fvec.h"
+#include "fmat.h"
#include "io/source_apple_audio.h"
// ExtAudioFileRef, AudioStreamBasicDescription, AudioBufferList, ...
#define RT_BYTE3( a ) ( ((a) >> 16) & 0xff )
#define RT_BYTE4( a ) ( ((a) >> 24) & 0xff )
-#define SHORT_TO_FLOAT(x) (smpl_t)(x * 3.0517578125e-05)
-
struct _aubio_source_apple_audio_t {
uint_t channels;
- uint_t samplerate;
+ uint_t samplerate; //< requested samplerate
+ uint_t source_samplerate; //< actual source samplerate
uint_t block_size;
char_t *path;
AudioBufferList bufferList;
};
-extern int createAubioBufferList(AudioBufferList *bufferList, int channels, int segmentSize);
+extern int createAudioBufferList(AudioBufferList *bufferList, int channels, int max_source_samples);
extern void freeAudioBufferList(AudioBufferList *bufferList);
-extern CFURLRef getURLFromPath(const char * path);
+extern CFURLRef createURLFromPath(const char * path);
+char_t *getPrintableOSStatusError(char_t *str, OSStatus error);
-aubio_source_apple_audio_t * new_aubio_source_apple_audio(char_t * path, uint_t samplerate, uint_t block_size)
+uint_t aubio_source_apple_audio_open (aubio_source_apple_audio_t *s, const char_t * path);
+
+aubio_source_apple_audio_t * new_aubio_source_apple_audio(const char_t * path, uint_t samplerate, uint_t block_size)
{
aubio_source_apple_audio_t * s = AUBIO_NEW(aubio_source_apple_audio_t);
- s->path = path;
- s->samplerate = samplerate;
+ if (path == NULL || strnlen(path, PATH_MAX) < 1) {
+ AUBIO_ERROR("source_apple_audio: Aborted opening null path\n");
+ goto beach;
+ }
+
+ if ( (sint_t)block_size <= 0 ) {
+ AUBIO_ERROR("source_apple_audio: Can not open %s with null or negative block_size %d\n",
+ path, block_size);
+ goto beach;
+ }
+
+ if ( (sint_t)samplerate < 0 ) {
+ AUBIO_ERROR("source_apple_audio: Can not open %s with negative samplerate %d\n",
+ path, samplerate);
+ goto beach;
+ }
+
s->block_size = block_size;
- s->channels = 1;
+ s->samplerate = samplerate;
+ if ( aubio_source_apple_audio_open ( s, path ) ) {
+ goto beach;
+ }
+ return s;
+
+beach:
+ del_aubio_source_apple_audio(s);
+ return NULL;
+}
+
+uint_t aubio_source_apple_audio_open (aubio_source_apple_audio_t *s, const char_t * path)
+{
OSStatus err = noErr;
UInt32 propSize;
- AudioStreamBasicDescription clientFormat;
- propSize = sizeof(clientFormat);
- memset(&clientFormat, 0, sizeof(AudioStreamBasicDescription));
- clientFormat.mFormatID = kAudioFormatLinearPCM;
- clientFormat.mSampleRate = (Float64)(s->samplerate);
- clientFormat.mFormatFlags = kAudioFormatFlagIsSignedInteger | kAudioFormatFlagIsPacked;
- clientFormat.mChannelsPerFrame = s->channels;
- clientFormat.mBitsPerChannel = sizeof(short) * 8;
- clientFormat.mFramesPerPacket = 1;
- clientFormat.mBytesPerFrame = clientFormat.mBitsPerChannel * clientFormat.mChannelsPerFrame / 8;
- clientFormat.mBytesPerPacket = clientFormat.mFramesPerPacket * clientFormat.mBytesPerFrame;
- clientFormat.mReserved = 0;
+ s->path = AUBIO_ARRAY(char_t, strnlen(path, PATH_MAX) + 1);
+ strncpy(s->path, path, strnlen(path, PATH_MAX) + 1);
// open the resource url
- CFURLRef fileURL = getURLFromPath(path);
+ CFURLRef fileURL = createURLFromPath(s->path);
err = ExtAudioFileOpenURL(fileURL, &s->audioFile);
- if (err) { AUBIO_ERR("error when trying to access %s, in ExtAudioFileOpenURL, %d\n", s->path, (int)err); goto beach;}
+ CFRelease(fileURL);
+ if (err == -43) {
+ AUBIO_ERR("source_apple_audio: Failed opening %s, "
+ "file not found, or no read access\n", s->path);
+ goto beach;
+ } else if (err) {
+ char_t errorstr[20];
+ AUBIO_ERR("source_apple_audio: Failed opening %s, "
+ "error in ExtAudioFileOpenURL (%s)\n", s->path,
+ getPrintableOSStatusError(errorstr, err));
+ goto beach;
+ }
// create an empty AudioStreamBasicDescription
AudioStreamBasicDescription fileFormat;
// fill it with the file description
err = ExtAudioFileGetProperty(s->audioFile,
kExtAudioFileProperty_FileDataFormat, &propSize, &fileFormat);
- if (err) { AUBIO_ERROR("error in ExtAudioFileGetProperty, %d\n", (int)err); goto beach;}
+ if (err) {
+ char_t errorstr[20];
+ AUBIO_ERROR("source_apple_audio: Failed opening %s, "
+ "error in ExtAudioFileGetProperty (%s)\n", s->path,
+ getPrintableOSStatusError(errorstr, err));
+ goto beach;
+ }
+
+ if (s->samplerate == 0) {
+ s->samplerate = fileFormat.mSampleRate;
+ //AUBIO_DBG("sampling rate set to 0, automagically adjusting to %d\n", samplerate);
+ }
+
+ s->source_samplerate = fileFormat.mSampleRate;
+ s->channels = fileFormat.mChannelsPerFrame;
+
+ AudioStreamBasicDescription clientFormat;
+ propSize = sizeof(AudioStreamBasicDescription);
+ memset(&clientFormat, 0, sizeof(AudioStreamBasicDescription));
+ clientFormat.mFormatID = kAudioFormatLinearPCM;
+ clientFormat.mSampleRate = (Float64)(s->samplerate);
+ clientFormat.mFormatFlags = kAudioFormatFlagIsFloat;
+ clientFormat.mChannelsPerFrame = s->channels;
+ clientFormat.mBitsPerChannel = sizeof(smpl_t) * 8;
+ clientFormat.mFramesPerPacket = 1;
+ clientFormat.mBytesPerFrame = clientFormat.mBitsPerChannel * clientFormat.mChannelsPerFrame / 8;
+ clientFormat.mBytesPerPacket = clientFormat.mFramesPerPacket * clientFormat.mBytesPerFrame;
// set the client format description
err = ExtAudioFileSetProperty(s->audioFile, kExtAudioFileProperty_ClientDataFormat,
propSize, &clientFormat);
- if (err) { AUBIO_ERROR("error in ExtAudioFileSetProperty, %d\n", (int)err); goto beach;}
-
+ if (err) {
+ char_t errorstr[20];
+ AUBIO_ERROR("source_apple_audio: Failed opening %s, "
+ "error in ExtAudioFileSetProperty (%s)\n", s->path,
+ getPrintableOSStatusError(errorstr, err));
#if 0
// print client and format descriptions
AUBIO_DBG("Opened %s\n", s->path);
AUBIO_DBG("file/client Format.mBytesPerPacket : %6d / %d\n", (int)fileFormat.mBytesPerPacket , (int)clientFormat.mBytesPerPacket);
AUBIO_DBG("file/client Format.mReserved : %6d / %d\n", (int)fileFormat.mReserved , (int)clientFormat.mReserved);
#endif
+ goto beach;
+ }
- // compute the size of the segments needed to read the input file
- UInt32 samples = s->block_size * clientFormat.mChannelsPerFrame;
- Float64 rateRatio = clientFormat.mSampleRate / fileFormat.mSampleRate;
- uint_t segmentSize= (uint_t)(samples * rateRatio + .5);
- if (rateRatio < 1.) {
- segmentSize = (uint_t)(samples / rateRatio + .5);
- } else if (rateRatio > 1.) {
- AUBIO_WRN("up-sampling %s from %0.2fHz to %0.2fHz\n", s->path, fileFormat.mSampleRate, clientFormat.mSampleRate);
- } else {
- assert (segmentSize == samples );
- //AUBIO_DBG("not resampling, segmentSize %d, block_size %d\n", segmentSize, s->block_size);
+ smpl_t ratio = s->source_samplerate * 1. / s->samplerate;
+ if (ratio < 1.) {
+ AUBIO_WRN("source_apple_audio: up-sampling %s from %0dHz to %0dHz\n",
+ s->path, s->source_samplerate, s->samplerate);
}
// allocate the AudioBufferList
- if (createAubioBufferList(&s->bufferList, s->channels, segmentSize)) err = -1;
+ freeAudioBufferList(&s->bufferList);
+ if (createAudioBufferList(&s->bufferList, s->channels, s->block_size * s->channels)) {
+ AUBIO_ERR("source_apple_audio: failed creating bufferList\n");
+ goto beach;
+ }
- return s;
-
beach:
- AUBIO_FREE(s);
- return NULL;
+ return err;
}
-void aubio_source_apple_audio_do(aubio_source_apple_audio_t *s, fvec_t * read_to, uint_t * read) {
- UInt32 c, v, loadedPackets = s->block_size;
+static UInt32 aubio_source_apple_audio_read_frame(aubio_source_apple_audio_t *s)
+{
+ UInt32 loadedPackets = s->block_size;
OSStatus err = ExtAudioFileRead(s->audioFile, &loadedPackets, &s->bufferList);
- if (err) { AUBIO_ERROR("error in ExtAudioFileRead, %d\n", (int)err); goto beach;}
-
- smpl_t *buf = read_to->data;
-
- short *data = (short*)s->bufferList.mBuffers[0].mData;
-
- if (buf) {
- for (c = 0; c < s->channels; c++) {
- for (v = 0; v < s->block_size; v++) {
- if (v < loadedPackets) {
- buf[v * s->channels + c] =
- SHORT_TO_FLOAT(data[ v * s->channels + c]);
- } else {
- buf[v * s->channels + c] = 0.f;
- }
- }
- }
+ if (err) {
+ char_t errorstr[20];
+ AUBIO_ERROR("source_apple_audio: error while reading %s "
+ "with ExtAudioFileRead (%s)\n", s->path,
+ getPrintableOSStatusError(errorstr, err));
+ }
+ return loadedPackets;
+}
+
+void aubio_source_apple_audio_do(aubio_source_apple_audio_t *s, fvec_t * read_to,
+ uint_t * read) {
+ uint_t c, v;
+ UInt32 loadedPackets = aubio_source_apple_audio_read_frame(s);
+ smpl_t *data = (smpl_t*)s->bufferList.mBuffers[0].mData;
+
+ for (v = 0; v < loadedPackets; v++) {
+ read_to->data[v] = 0.;
+ for (c = 0; c < s->channels; c++) {
+ read_to->data[v] += data[ v * s->channels + c];
+ }
+ read_to->data[v] /= (smpl_t)s->channels;
+ }
+ // short read, fill with zeros
+ if (loadedPackets < s->block_size) {
+ for (v = loadedPackets; v < s->block_size; v++) {
+ read_to->data[v] = 0.;
+ }
}
- //if (loadedPackets < s->block_size) return EOF;
+
*read = (uint_t)loadedPackets;
return;
-beach:
- *read = 0;
+}
+
+void aubio_source_apple_audio_do_multi(aubio_source_apple_audio_t *s, fmat_t * read_to, uint_t * read) {
+ uint_t c, v;
+ UInt32 loadedPackets = aubio_source_apple_audio_read_frame(s);
+ smpl_t *data = (smpl_t*)s->bufferList.mBuffers[0].mData;
+
+ for (v = 0; v < loadedPackets; v++) {
+ for (c = 0; c < read_to->height; c++) {
+ read_to->data[c][v] = data[ v * s->channels + c];
+ }
+ }
+ // if read_data has more channels than the file
+ if (read_to->height > s->channels) {
+ // copy last channel to all additional channels
+ for (v = 0; v < loadedPackets; v++) {
+ for (c = s->channels; c < read_to->height; c++) {
+ read_to->data[c][v] = data[ v * s->channels + (s->channels - 1)];
+ }
+ }
+ }
+ // short read, fill with zeros
+ if (loadedPackets < s->block_size) {
+ for (v = loadedPackets; v < s->block_size; v++) {
+ for (c = 0; c < read_to->height; c++) {
+ read_to->data[c][v] = 0.;
+ }
+ }
+ }
+
+ *read = (uint_t)loadedPackets;
return;
}
-void del_aubio_source_apple_audio(aubio_source_apple_audio_t * s){
+uint_t aubio_source_apple_audio_close (aubio_source_apple_audio_t *s)
+{
OSStatus err = noErr;
- if (!s || !s->audioFile) { return; }
+ if (!s->audioFile) { return AUBIO_OK; }
err = ExtAudioFileDispose(s->audioFile);
- if (err) AUBIO_ERROR("error in ExtAudioFileDispose, %d\n", (int)err);
s->audioFile = NULL;
+ if (err) {
+ char_t errorstr[20];
+ AUBIO_ERROR("source_apple_audio: error while closing %s "
+ "in ExtAudioFileDispose (%s)\n", s->path,
+ getPrintableOSStatusError(errorstr, err));
+ return err;
+ }
+ return AUBIO_OK;
+}
+
+void del_aubio_source_apple_audio(aubio_source_apple_audio_t * s){
+ AUBIO_ASSERT(s);
+ aubio_source_apple_audio_close (s);
+ if (s->path) AUBIO_FREE(s->path);
freeAudioBufferList(&s->bufferList);
AUBIO_FREE(s);
- return;
}
-#endif /* __APPLE__ */
+uint_t aubio_source_apple_audio_seek (aubio_source_apple_audio_t * s, uint_t pos) {
+ OSStatus err = noErr;
+ if ((sint_t)pos < 0) {
+ AUBIO_ERROR("source_apple_audio: error while seeking in %s "
+ "(can not seek at negative position %d)\n",
+ s->path, pos);
+ err = -1;
+ goto beach;
+ }
+ // check if we are not seeking out of the file
+ uint_t fileLengthFrames = aubio_source_apple_audio_get_duration(s);
+ // compute position in the source file, before resampling
+ smpl_t ratio = s->source_samplerate * 1. / s->samplerate;
+ SInt64 resampled_pos = (SInt64)ROUND( pos * ratio );
+ if (resampled_pos > fileLengthFrames) {
+ AUBIO_ERR("source_apple_audio: trying to seek in %s at pos %d, "
+ "but file has only %d frames\n",
+ s->path, pos, (uint_t)(fileLengthFrames / ratio));
+ err = -1;
+ goto beach;
+ }
+ // after a short read, the bufferList size needs to resetted to prepare for a full read
+ AudioBufferList *bufferList = &s->bufferList;
+ bufferList->mBuffers[0].mDataByteSize = s->block_size * s->channels * sizeof (smpl_t);
+ // do the actual seek
+ err = ExtAudioFileSeek(s->audioFile, resampled_pos);
+ if (err) {
+ char_t errorstr[20];
+ AUBIO_ERROR("source_apple_audio: error while seeking %s at %d "
+ "in ExtAudioFileSeek (%s)\n", s->path, pos,
+ getPrintableOSStatusError(errorstr, err));
+ }
+#if 0
+ // check position after seek
+ {
+ SInt64 outFrameOffset = 0;
+ err = ExtAudioFileTell(s->audioFile, &outFrameOffset);
+ if (err) {
+ char_t errorstr[20];
+ AUBIO_ERROR("source_apple_audio: error while seeking %s at %d "
+ "in ExtAudioFileTell (%s)\n", s->path, pos,
+ getPrintableOSStatusError(errorstr, err));
+ }
+ AUBIO_DBG("source_apple_audio: asked seek at %d, tell got %d\n",
+ pos, (uint_t)(outFrameOffset / ratio + .5));
+ }
+#endif
+beach:
+ return err;
+}
+
+uint_t aubio_source_apple_audio_get_samplerate(const aubio_source_apple_audio_t * s) {
+ return s->samplerate;
+}
+
+uint_t aubio_source_apple_audio_get_channels(const aubio_source_apple_audio_t * s) {
+ return s->channels;
+}
+
+uint_t aubio_source_apple_audio_get_duration(const aubio_source_apple_audio_t * s) {
+ SInt64 fileLengthFrames = 0;
+ UInt32 propSize = sizeof(fileLengthFrames);
+ OSStatus err = ExtAudioFileGetProperty(s->audioFile,
+ kExtAudioFileProperty_FileLengthFrames, &propSize, &fileLengthFrames);
+ if (err) {
+ char_t errorstr[20];
+ AUBIO_ERROR("source_apple_audio: Failed getting %s duration, "
+ "error in ExtAudioFileGetProperty (%s)\n", s->path,
+ getPrintableOSStatusError(errorstr, err));
+ return err;
+ }
+ return (uint_t)fileLengthFrames;
+}
+
+#endif /* HAVE_SOURCE_APPLE_AUDIO */
projects / aubio.git / blobdiff