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more general ao_macosx cleanup. Patch by Alexander Strange <astrange@ithinksw.com> 

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@15854 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
nplourde 2005-06-29 18:17:19 +00:00
parent 8215f4f4ae
commit 0bbc7905c9
1 changed files with 18 additions and 17 deletions
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35
libao2/ao_macosx.c
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@ -81,7 +81,6 @@ typedef struct ao_macosx_s
* (num_chunks + 1) * chunk_size memory to store num_chunks * chunk_size
* data */
unsigned char *buffer;
unsigned char *chunk;
unsigned int buffer_len; ///< must always be (num_chunks + 1) * chunk_size
unsigned int num_chunks;
unsigned int chunk_size;
@ -90,7 +89,7 @@ typedef struct ao_macosx_s
unsigned int buf_write_pos;
} ao_macosx_t;
static ao_macosx_t *ao;
static ao_macosx_t *ao = NULL;
/**
* \brief return number of free bytes in the buffer
@ -159,15 +158,12 @@ OSStatus theRenderProc(void *inRefCon, AudioUnitRenderActionFlags *inActionFlags
int amt=buf_used();
int req=(inNumFrames)*ao->packetSize;
ioData->mBuffers[0].mData = ao->chunk;
if(amt>req)
amt=req;
if(amt)
read_buffer((unsigned char *)ioData->mBuffers[0].mData, amt);
else audio_pause();
ioData->mBuffers[0].mDataByteSize = amt;
return noErr;
@ -179,7 +175,6 @@ static int control(int cmd,void *arg){
case AOCONTROL_GET_DEVICE:
case AOCONTROL_GET_VOLUME:
case AOCONTROL_SET_VOLUME:
case AOCONTROL_QUERY_FORMAT:
/* Everything is currently unimplemented */
return CONTROL_FALSE;
default:
@ -224,8 +219,9 @@ Component comp;
AURenderCallbackStruct renderCallback;
OSStatus err;
UInt32 size, maxFrames;
int aoIsCreated = ao != NULL;
ao = (ao_macosx_t *)malloc(sizeof(ao_macosx_t));
if (!aoIsCreated) ao = (ao_macosx_t *)malloc(sizeof(ao_macosx_t));
// Build Description for the input format
memset(&inDesc, 0, sizeof(AudioStreamBasicDescription));
@ -271,11 +267,7 @@ UInt32 size, maxFrames;
ao->packetSize = inDesc.mBytesPerPacket = inDesc.mBytesPerFrame = inDesc.mFramesPerPacket*channels*(inDesc.mBitsPerChannel/8);
print_format("source: ",&inDesc);
ao_data.samplerate = inDesc.mSampleRate;
ao_data.channels = inDesc.mChannelsPerFrame;
ao_data.outburst = ao_data.buffersize = ao->chunk_size;
ao_data.bps = ao_data.samplerate * inDesc.mBytesPerFrame;
if (!aoIsCreated) {
desc.componentType = kAudioUnitType_Output;
desc.componentSubType = kAudioUnitSubType_DefaultOutput;
desc.componentManufacturer = kAudioUnitManufacturer_Apple;
@ -300,6 +292,7 @@ UInt32 size, maxFrames;
ao_msg(MSGT_AO, MSGL_WARN, "Unable to initialize Output Unit component (err=%d)\n", err);
return CONTROL_FALSE;
}
}
size = sizeof(AudioStreamBasicDescription);
err = AudioUnitSetProperty(ao->theOutputUnit, kAudioUnitProperty_StreamFormat, kAudioUnitScope_Input, 0, &inDesc, size);
@ -323,8 +316,13 @@ UInt32 size, maxFrames;
ao->chunk_size = maxFrames*inDesc.mBytesPerFrame;
ao->num_chunks = NUM_BUFS;
ao->buffer_len = (ao->num_chunks + 1) * ao->chunk_size;
ao->buffer = (unsigned char *)calloc(ao->num_chunks + 1, ao->chunk_size);
ao->chunk = (unsigned char*)calloc(1, ao->chunk_size);
ao->buffer = aoIsCreated ? (unsigned char *)realloc(ao->buffer,(ao->num_chunks + 1)*ao->chunk_size)
: (unsigned char *)calloc(ao->num_chunks + 1, ao->chunk_size);
ao_data.samplerate = inDesc.mSampleRate;
ao_data.channels = inDesc.mChannelsPerFrame;
ao_data.outburst = ao_data.buffersize = ao->chunk_size;
ao_data.bps = ao_data.samplerate * inDesc.mBytesPerFrame;
memset(&renderCallback, 0, sizeof(AURenderCallbackStruct));
renderCallback.inputProc = theRenderProc;
@ -335,7 +333,9 @@ UInt32 size, maxFrames;
return CONTROL_FALSE;
}
reset();
audio_pause();
ao->buf_read_pos=0;
ao->buf_write_pos=0;
return CONTROL_OK;
}
@ -343,6 +343,7 @@ UInt32 size, maxFrames;
static int play(void* output_samples,int num_bytes,int flags)
{
audio_resume();
return write_buffer(output_samples, num_bytes);
}
@ -387,9 +388,9 @@ static void uninit(int immed)
AudioUnitUninitialize(ao->theOutputUnit);
CloseComponent(ao->theOutputUnit);
free(ao->chunk);
free(ao->buffer);
free(ao);
ao = NULL;
}