static void AVB_Process(void *pData)
{
kal_int16 *pDstBuffer;
kal_int8 *pSrcBuffer;
kal_uint32 uSrcByte, uDstByte, uConsumeByte;
kal_trace( TRACE_GROUP_SCO, L1AUDIO_AVB_PROC, AVB.uState, AVB.uSegment_W, AVB.uSegment_R);
while(AVB.uSegment_W - AVB.uSegment_R < AVB_SEGMENT_NUMBER)
{
rbGetReadBuffer(&AVB.PCM, &pSrcBuffer, &uSrcByte);
if(uSrcByte<4)
{
break;
}
uDstByte = (AVB_FRAME_SAMPLE-AVB.uSample_W)*2;
pDstBuffer = AVB.pBuffer + (AVB.uSegment_W & AVB_SEGMENT_MASK) * AVB_FRAME_SAMPLE + AVB.uSample_W;
uConsumeByte = BLI_Convert(AVB.pBLISRC, (kal_int16*)pSrcBuffer, &uSrcByte, pDstBuffer, &uDstByte);
rbReadDataDone(&AVB.PCM, uConsumeByte);
AVB.uSample_W += uDstByte>>1;
ASSERT(AVB.uSample_W <= AVB_FRAME_SAMPLE);
if(AVB.uSample_W == AVB_FRAME_SAMPLE)
{
AVB.uSample_W = 0;
AVB.uSegment_W++;
}
else
{
uDstByte = (AVB_FRAME_SAMPLE-AVB.uSample_W)*2;
pDstBuffer = AVB.pBuffer + (AVB.uSegment_W & AVB_SEGMENT_MASK) * AVB_FRAME_SAMPLE + AVB.uSample_W;
memset(pDstBuffer, 0, uDstByte);
}
}
if(AVB.uState == AVB_STATE_FLUSH_TAIL)
{
rbGetReadBuffer(&AVB.PCM, &pSrcBuffer, &uSrcByte);
if(uSrcByte<4)
{
if(AVB.uSample_W)
{
AVB.uSample_W = 0;
AVB.uSegment_W++;
}
AVB.uState = AVB_STATE_FLUSH_PING;
}
}
}
int32 LADPlayBuffer::LADPlayWrite(int8* iBuf, int32 num)
{
int32 tryCount = 0;
uint32 inCount, outCount, consumed;
int8* buf;
int dataCount = 0;
LOG_LADPlay("+LADPlayWrite num=%d",num);
//if VM case call VM write function
if ( mFormat == android_audio_legacy::AudioSystem::VM_FMT ){
return LADPlayWriteVM(iBuf, num);
}
//num not consumed
int32 leftCount = num;
//do 8bit to 16bit conversion if necessary
if( mFormat == android_audio_legacy::AudioSystem::PCM_8_BIT ) {
buf = new int8[num * 2];
ConvertPcm8ToPcm16(iBuf, buf, num);
}
else{
buf = iBuf;
}
//keep on trying until leftCount = 0
do {
// lock
BuffLock();
// if LadPlayer is closed, return this function to revent block
if(pLadPlayer->runFlag == 0) {
LOG_LADPlay("pLadPlayer=%x, runFlag=%d",pLadPlayer,pLadPlayer->runFlag );
BuffUnLock();
return num;
}
/*
//get data count in buffer
dataCount = rb_getDataCount(&mBuf);
LOG_LADPlay("!!!LADPlayWrite dataCount:%d\n",dataCount);
*/
if( mBuf.pRead <= mBuf.pWrite ) {
//printf("glbcnt: %d\n", glbcnt);
//if ( glbcnt == 3 )
// glbcnt = glbcnt;
//glbcnt++;
//If write pointer is larger than read, we output from write til end
inCount = leftCount;
if ( mBuf.pRead == mBuf.pBufBase )
outCount = mBuf.pBufBase + mBuf.bufLen - mBuf.pWrite - 2;
else
outCount = mBuf.pBufBase + mBuf.bufLen - mBuf.pWrite;
// LOG_LADPlay("1LADPlayWrite~ inCount=%d, outCount=%d",inCount,outCount);
#ifdef DUMP_BGS_BLI_BUF
fwrite(buf, sizeof(char), inCount, p_OutFile1);
#endif
//Do Conversion
consumed = BLI_Convert(pSrcHdl, (int16*)buf, &inCount, (int16*)mBuf.pWrite, &outCount);
buf += consumed;
LOG_LADPlay("1LADPlayWrite consumed=%d, inCount=%d, outCount=%d",consumed,inCount,outCount);
//Judge if we need to try consume again
if ( inCount == 0 ) { // all input buffer is consumed, means no data to copy to rb
mBuf.pWrite += outCount; // update write pointer with outcount
BuffUnLock();
break;
}
else { // input buffer is not completely consumed, but ring buffer hits its end
mBuf.pWrite += outCount;
if ( mBuf.pWrite == mBuf.pBufBase + mBuf.bufLen )
mBuf.pWrite = mBuf.pBufBase; // ring buffer write pointer start from base
leftCount -= consumed; // update leftCount try to consume again
}
//get data count in buffer
dataCount = rb_getDataCount(&mBuf);
LOG_LADPlay("1LADPlayWrite pRead:%d, pWrite:%d, dataCount:%d\n",
mBuf.pRead - mBuf.pBufBase, mBuf.pWrite - mBuf.pBufBase, dataCount);
}
else {
//If read pointer is larger than write, we output from write til read pointer
inCount = leftCount;
outCount = mBuf.pRead - mBuf.pWrite - 2;
// LOG_LADPlay("2LADPlayWrite~ inCount=%d, outCount=%d",inCount,outCount);
#ifdef DUMP_BGS_BLI_BUF
fwrite(buf, sizeof(char), inCount, p_OutFile1);
#endif
//Do Conversion
consumed = BLI_Convert(pSrcHdl, (int16*)buf, &inCount, (int16*)mBuf.pWrite, &outCount);
buf += consumed;
LOG_LADPlay("2LADPlayWrite consumed=%d, inCount=%d, outCount=%d",consumed,inCount,outCount);
//Judge if we need to try consume again
if ( inCount == 0 ) { // all input buffer is consumed, means no data to copy to rb
mBuf.pWrite += outCount; // update write pointer with outcount
BuffUnLock();
break;
}
else { // input buffer is not completely consumed, but ring buffer hits read pointer
mBuf.pWrite += outCount; // update write pointer
leftCount -= consumed; // update leftCount try to consume again
}
//get data count in buffer
dataCount = rb_getDataCount(&mBuf);
LOG_LADPlay("2LADPlayWrite pRead:%d, pWrite:%d, dataCount:%d\n",
mBuf.pRead - mBuf.pBufBase, mBuf.pWrite - mBuf.pBufBase, dataCount);
}
//unlock
BuffUnLock();
AAD_Sleep_1ms(3); //wait some time and try again
} while ( tryCount++ < 200 );
// printf("exit:-- pRead:%d, pWrite:%d, pBase:0x%x, pEnd:0x%x\n",
// mBuf.pRead - mBuf.pBufBase, mBuf.pWrite - mBuf.pBufBase, mBuf.pBufBase, mBuf.pBufBase+ mBuf.bufLen);
if(tryCount >= 20) ASSERT(0);
//LOG_LADPlay("-LADPlayWrite tryCount:%d",tryCount);
// always return num
return num;
}
