Commit 5956587c authored by aymeric's avatar aymeric
Browse files

clean comments and code in winsndds filter

git-svn-id: svn+ssh://svn.savannah.nongnu.org/linphone/trunk@467 3f6dc0c8-ddfe-455d-9043-3cd528dc4637
parent 39c29e1c
......@@ -31,8 +31,6 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#include <dsound.h>
#define WINSNDDS_NBUFS 10
#define WINSNDDS_NSAMPLES 160
#define WINSNDDS_MINIMUMBUFFER 5
static MSFilter *ms_winsndds_read_new(MSSndCard *card);
......@@ -313,13 +311,12 @@ typedef struct WinSndDs{
MSBufferizer output_buff;
LPDIRECTSOUND lpDirectSound;
LPDIRECTSOUNDBUFFER lpDirectSoundOutputBuffer;
DWORD outputBufferWriteOffsetBytes; /* last write position */
double dsw_framesWritten;
UINT writeOffset; /* last read position */
LPDIRECTSOUNDCAPTURE lpDirectSoundCapture;
LPDIRECTSOUNDCAPTUREBUFFER lpDirectSoundInputBuffer;
UINT readOffset; /* last read position */
UINT inputSize;
int framesPerDSBuffer;
......@@ -333,7 +330,6 @@ typedef struct WinSndDs{
int32_t stat_output;
int32_t stat_notplayed;
int32_t stat_minimumbuffer;
}WinSndDs;
void *
......@@ -365,11 +361,9 @@ winsndds_read_thread(void *arg)
}
filled = readPos - d->readOffset;
if( filled < 0 ) filled += d->inputSize; // unwrap offset
if( filled < 0 ) filled += d->framesPerDSBuffer;
bytesFilled = filled;
//bytesFilled = 480 * d->wfx.nSamplesPerSec/8000;
hr = IDirectSoundCaptureBuffer_Lock ( d->lpDirectSoundInputBuffer,
d->readOffset, bytesFilled,
(void **) &lpInBuf1, &dwInSize1,
......@@ -393,7 +387,7 @@ winsndds_read_thread(void *arg)
putq(&d->rq,m);
ms_mutex_unlock(&d->mutex);
d->bytes_read+=bytesFilled;
//ms_message("bytesFilled=%i\n",bytesFilled);
/* ms_message("bytesFilled=%i\n",bytesFilled); */
}
else
{
......@@ -405,10 +399,10 @@ winsndds_read_thread(void *arg)
putq(&d->rq,m);
ms_mutex_unlock(&d->mutex);
d->bytes_read+=bytesFilled;
//ms_message("bytesFilled=%i\n",bytesFilled);
/* ms_message("bytesFilled=%i\n",bytesFilled); */
}
d->readOffset = (d->readOffset + bytesFilled) % d->inputSize;
d->readOffset = (d->readOffset + bytesFilled) % d->framesPerDSBuffer;
IDirectSoundCaptureBuffer_Unlock( d->lpDirectSoundInputBuffer,
lpInBuf1, dwInSize1, lpInBuf2, dwInSize2);
......@@ -449,7 +443,6 @@ static void winsndds_init(MSFilter *f){
d->stat_input=0;
d->stat_output=0;
d->stat_notplayed=0;
d->stat_minimumbuffer=WINSNDDS_MINIMUMBUFFER;
d->framesPerDSBuffer = 320 * (8000 / 1000);
......@@ -483,25 +476,23 @@ static void winsndds_read_preprocess(MSFilter *f){
d->stat_input=0;
d->stat_output=0;
d->stat_notplayed=0;
d->stat_minimumbuffer=WINSNDDS_MINIMUMBUFFER;
d->framesPerDSBuffer = 320 * (d->wfx.nSamplesPerSec / 1000) /2;
winsndds_apply_settings(d);
ms_DirectSoundCaptureCreate( &d->in_guid, &d->lpDirectSoundCapture, NULL );
d->inputSize = d->framesPerDSBuffer;
ZeroMemory(&captureDesc, sizeof(DSCBUFFERDESC));
captureDesc.dwSize = sizeof(DSCBUFFERDESC);
captureDesc.dwFlags = 0;
captureDesc.dwBufferBytes = d->framesPerDSBuffer; //bytesPerBuffer;
captureDesc.dwBufferBytes = d->framesPerDSBuffer;
captureDesc.lpwfxFormat = &d->wfx;
// Create the capture buffer
if ((hr = IDirectSoundCapture_CreateCaptureBuffer( d->lpDirectSoundCapture,
&captureDesc, &d->lpDirectSoundInputBuffer, NULL)) != DS_OK)
{
return; /* hr; */
return;
}
d->readOffset = 0; // reset last read position to start of buffer
d->readOffset = 0;
hr = IDirectSoundCaptureBuffer_Start( d->lpDirectSoundInputBuffer, DSCBSTART_LOOPING );
......@@ -513,7 +504,7 @@ static void winsndds_read_preprocess(MSFilter *f){
ms_cond_wait(&d->thread_cond,&d->thread_lock);
ms_mutex_unlock(&d->thread_lock);
return; /* DS_OK; */
return;
}
static void winsndds_read_postprocess(MSFilter *f){
......@@ -566,13 +557,14 @@ static void winsndds_write_preprocess(MSFilter *f){
DSBUFFERDESC primaryDesc;
DSBUFFERDESC secondaryDesc;
unsigned char* pDSBuffData;
DWORD outputBufferWriteOffsetBytes;
d->stat_input=0;
d->stat_output=0;
d->stat_notplayed=0;
d->stat_minimumbuffer=WINSNDDS_MINIMUMBUFFER;
d->framesPerDSBuffer = 320 * (d->wfx.nSamplesPerSec / 1000);
winsndds_apply_settings(d);
......@@ -588,75 +580,67 @@ static void winsndds_write_preprocess(MSFilter *f){
ZeroMemory(&primaryDesc, sizeof(DSBUFFERDESC));
primaryDesc.dwSize = sizeof(DSBUFFERDESC);
primaryDesc.dwFlags = DSBCAPS_GETCURRENTPOSITION2 | DSBCAPS_PRIMARYBUFFER; // all panning, mixing, etc done by synth
primaryDesc.dwFlags = DSBCAPS_GETCURRENTPOSITION2 | DSBCAPS_PRIMARYBUFFER;
primaryDesc.dwBufferBytes = 0;
primaryDesc.lpwfxFormat = NULL;
// Create the buffer
if ((hr = IDirectSound_CreateSoundBuffer( d->lpDirectSound,
&primaryDesc, &pPrimaryBuffer, NULL)) != DS_OK)
{
return ;//hr;
return ;
}
if ((hr = IDirectSoundBuffer_SetFormat( pPrimaryBuffer, &d->wfx)) != DS_OK)
{
return ;//hr;
return ;
}
IDirectSoundBuffer_Release(pPrimaryBuffer);
// Setup the secondary buffer description
ZeroMemory(&secondaryDesc, sizeof(DSBUFFERDESC));
secondaryDesc.dwSize = sizeof(DSBUFFERDESC);
secondaryDesc.dwFlags = DSBCAPS_GLOBALFOCUS | DSBCAPS_GETCURRENTPOSITION2;
secondaryDesc.dwBufferBytes = d->framesPerDSBuffer; //bytesPerBuffer;
secondaryDesc.dwBufferBytes = d->framesPerDSBuffer;
secondaryDesc.lpwfxFormat = &d->wfx;
// Create the secondary buffer
if ((hr = IDirectSound_CreateSoundBuffer( d->lpDirectSound,
&secondaryDesc, &d->lpDirectSoundOutputBuffer, NULL)) != DS_OK)
{
return ;//hr;
return ;
}
// Lock the DS buffer
if ((hr = IDirectSoundBuffer_Lock( d->lpDirectSoundOutputBuffer, 0,
d->framesPerDSBuffer,
(LPVOID*)&pDSBuffData,
&dwDataLen, NULL, 0, 0)) != DS_OK)
{
return ;//hr;
return ;
}
// Zero the DS buffer
ZeroMemory(pDSBuffData, dwDataLen);
// Unlock the DS buffer
ZeroMemory(pDSBuffData, dwDataLen);
if ((hr = IDirectSoundBuffer_Unlock( d->lpDirectSoundOutputBuffer,
pDSBuffData, dwDataLen, NULL, 0)) != DS_OK)
{
return ;//hr;
return ;
}
// Let DSound set the starting write position because if we set it to zero, it looks like the
// buffer is full to begin with. This causes a long pause before sound starts when using large buffers.
hr = IDirectSoundBuffer_GetCurrentPosition( d->lpDirectSoundOutputBuffer,
&playCursor, &d->outputBufferWriteOffsetBytes );
&playCursor, &outputBufferWriteOffsetBytes );
if( hr != DS_OK )
{
return ;//hr;
return ;
}
hr = IDirectSoundBuffer_SetCurrentPosition( d->lpDirectSoundOutputBuffer, 0 );
if( hr != DS_OK )
{
return ;//hr;
return ;
}
hr = IDirectSoundBuffer_Play( d->lpDirectSoundOutputBuffer, 0, 0, DSBPLAY_LOOPING);
if( hr != DS_OK )
{
return ;//hr;
return ;
}
d->readOffset=-1;
d->writeOffset=-1;
return ;//hr;
return ;
}
static void winsndds_write_postprocess(MSFilter *f){
......@@ -676,7 +660,7 @@ static void winsndds_write_postprocess(MSFilter *f){
}
ms_message("Shutting down sound device (playing: %i) (input-output: %i) (notplayed: %i)", d->nbufs_playing, d->stat_input - d->stat_output, d->stat_notplayed);
d->readOffset=-1;
d->writeOffset=-1;
}
static void winsndds_write_process(MSFilter *f){
......@@ -690,15 +674,15 @@ static void winsndds_write_process(MSFilter *f){
ms_bufferizer_put_from_queue(&d->output_buff,f->inputs[0]);
if (d->readOffset==-1)
if (d->writeOffset==-1)
{
if (ms_bufferizer_get_avail(&d->output_buff)>=4096*3)
if (ms_bufferizer_get_avail(&d->output_buff)>=d->framesPerDSBuffer/2)
{
DWORD playCursor;
DWORD outputBufferWriteOffsetBytes;
IDirectSoundBuffer_GetCurrentPosition( d->lpDirectSoundOutputBuffer,
&playCursor, &d->outputBufferWriteOffsetBytes );
d->readOffset = d->outputBufferWriteOffsetBytes;
&playCursor, &outputBufferWriteOffsetBytes );
d->writeOffset = outputBufferWriteOffsetBytes;
}
else
return;
......@@ -715,9 +699,9 @@ static void winsndds_write_process(MSFilter *f){
char input[15360];
hr = IDirectSoundBuffer_Lock ( d->lpDirectSoundOutputBuffer,
d->readOffset, msize,
d->writeOffset, msize,
(void **) &lpOutBuf1, &dwOutSize1,
(void **) &lpOutBuf2, &dwOutSize2, 0); //DSBLOCK_FROMWRITECURSOR);
(void **) &lpOutBuf2, &dwOutSize2, 0); /* DSBLOCK_FROMWRITECURSOR); */
if (hr != DS_OK)
{
ms_error("DirectSound IDirectSoundBuffer_Lock failed, hresult = 0x%x\n", hr);
......@@ -746,7 +730,7 @@ static void winsndds_write_process(MSFilter *f){
memcpy(lpOutBuf2, input+dwOutSize1, dwOutSize2);
}
d->readOffset=(d->readOffset+dwOutSize1+dwOutSize2) % d->framesPerDSBuffer;
d->writeOffset=(d->writeOffset+dwOutSize1+dwOutSize2) % d->framesPerDSBuffer;
IDirectSoundBuffer_Unlock( d->lpDirectSoundOutputBuffer,
lpOutBuf1, dwOutSize1, lpOutBuf2, dwOutSize2);
if (dwOutSize1==0)
......@@ -768,7 +752,6 @@ static int get_rate(MSFilter *f, void *arg){
static int set_rate(MSFilter *f, void *arg){
WinSndDs *d=(WinSndDs*)f->data;
d->wfx.nSamplesPerSec=*((int*)arg);
d->framesPerDSBuffer = 320 * (d->wfx.nSamplesPerSec / 1000);
return 0;
}
......
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