//*****************************************************************************
//
//! reads the content of one buffer into the other.
//!
//! \param pCircularBuffer is the pointer to the control structure for circular
//! buffer.
//! \param pucBuffer is the pointer to the buffer to which the content is
//! copied.
//! \param uiPacketSize is the amount of data need to be copied from Circular
//! Buffer to the pucBuffer.
//!
//! This function
//! 1. Copies the uiPacketSize of data from pCircularBuffer to the
//! pucBuffer.
//!
//! \return amount of data copied.
//
//*****************************************************************************
long
ReadBuffer(tCircularBuffer *pCircularBuffer, unsigned char *pucBuffer,
unsigned int uiDataSize)
{
int uiOffset;
uiOffset=((pCircularBuffer->pucReadPtr+uiDataSize) -
pCircularBuffer->pucBufferEndPtr);
if(uiOffset <= 0)
{
memcpy(pucBuffer, pCircularBuffer->pucReadPtr, uiDataSize);
}
else
{
memcpy(pucBuffer, pCircularBuffer->pucReadPtr,
(uiDataSize - uiOffset));
memcpy(((pucBuffer + uiDataSize) - uiOffset),
pCircularBuffer->pucBufferStartPtr, uiOffset);
}
UpdateReadPtr(pCircularBuffer, uiDataSize);
return(uiDataSize);
}
void Microphone( void *pvParameters )
{
long lRetVal = -1;
#ifdef MULTICAST
//Wait for Network Connection
while((!IS_IP_ACQUIRED(g_ulStatus)))
{
}
#endif //MULTICAST
while(1)
{
while(g_ucMicStartFlag || g_loopback)
{
int iBufferFilled = 0;
iBufferFilled = GetBufferSize(pRecordBuffer);
if(iBufferFilled >= (2*PACKET_SIZE))
{
if(!g_loopback)
{
#ifndef MULTICAST
lRetVal = sendto(g_UdpSock.iSockDesc, \
(char*)(pRecordBuffer->pucReadPtr),PACKET_SIZE,\
0,(struct sockaddr*)&(g_UdpSock.Client),\
sizeof(g_UdpSock.Client));
if(lRetVal < 0)
{
UART_PRINT("Unable to send data\n\r");
LOOP_FOREVER();
}
#else //MULTICAST
lRetVal = SendMulticastPacket();
if(lRetVal < 0)
{
UART_PRINT("Unable to send data\n\r");
LOOP_FOREVER();
}
#endif //MULTICAST
}
else
{
lRetVal = FillBuffer(pPlayBuffer,\
(unsigned char*)(pRecordBuffer->pucReadPtr), \
PACKET_SIZE);
if(lRetVal < 0)
{
UART_PRINT("Unable to fill buffer\n\r");
}
g_iReceiveCount++;
}
UpdateReadPtr(pRecordBuffer, PACKET_SIZE);
g_iSentCount++;
}
}
MAP_UtilsDelay(1000);
}
}
status_t APESource::read(
MediaBuffer **out, const ReadOptions *options)
{
*out = NULL;
uint32_t newframe = 0 , firstbyte = 0;
///LOGV("APESource::read");
int64_t seekTimeUs;
ReadOptions::SeekMode mode;
int32_t bitrate = 0;
if (!mMeta->findInt32(kKeyBitRate, &bitrate)
|| !mMeta->findInt32(kKeySampleRate, &mSampleRate))
{
LOGI("no bitrate");
return ERROR_UNSUPPORTED;
}
if (options != NULL && options->getSeekTo(&seekTimeUs, &mode))
{
{
int64_t duration = 0;
int64_t seektabletime = 0;
if ((mTotalsample > 0) && (mTableOfContents[0] > 0) && (mSamplesPerFrame > 0)
&& mMeta->findInt64(kKeyDuration, &duration))
{
ape_parser_ctx_t ape_ctx;
uint32_t filepos, blocks_to_skip;
ape_ctx.samplerate = mSampleRate;
ape_ctx.blocksperframe = mSamplesPerFrame;
ape_ctx.totalframes = mTotalFrame;
ape_ctx.seektable = mTableOfContents;
ape_ctx.firstframe = mTableOfContents[0];
if (ape_calc_seekpos_by_microsecond(&ape_ctx,
seekTimeUs,
&newframe,
&filepos,
&firstbyte,
&blocks_to_skip) < 0)
{
LOGD("getseekto error exit");
return ERROR_UNSUPPORTED;
}
mCurrentPos = filepos;
mCurrentTimeUs = (int64_t)newframe * mSamplesPerFrame * 1000000ll / mSampleRate;
LOGD("getseekto seekTimeUs=%lld, Actual time%lld, filepos%x,frame %d, seekbyte %d", seekTimeUs, mCurrentTimeUs, mCurrentPos, newframe, firstbyte);
}
else
{
LOGD("getseekto parameter error exit");
return ERROR_UNSUPPORTED;
}
}
}
if ((mFileoffset != 0)
&& (mCurrentPos >= mFileoffset))
{
LOGD("APESource::readAt to end filesize %x curr: %x", mFileoffset, mCurrentPos);
return ERROR_END_OF_STREAM;
}
MediaBuffer *buffer;
status_t err = mGroup->acquire_buffer(&buffer);
if (err != OK)
{
LOGD("APESource::acquire_buffer fail");
return err;
}
size_t frame_size;
frame_size = kMaxFrameSize;
ssize_t n = 0;
#ifdef ENABLE_MMRIOTHREAD
if (options != NULL && options->getSeekTo(&seekTimeUs, &mode))
{
ResetReadioPtr(mCurrentPos);
}
n = ReadBitsteam(buffer->data(), frame_size);
#else
///frame_size = mMaxBufferSize;
n = mDataSource->readAt(mCurrentPos, buffer->data(), frame_size);
#endif
///LOGE("APESource::readAt %x, %x, %d, %d, %d, %d, %d", mCurrentPos, buffer->data(), buffer->size(), mTotalsample, bitrate, mSampleRate, frame_size);
//ssize_t n = mDataSource->readAt(mCurrentPos, buffer->data(), frame_size);
if ((mFileoffset != 0)
&& ((mCurrentPos + n) >= mFileoffset))
{
frame_size = mFileoffset - mCurrentPos;
memset(buffer->data() + frame_size, 0, n - frame_size);
}
else if ((n < (ssize_t)frame_size)
&& (n > 0))
{
frame_size = n;
off64_t fileoffset = 0;
mDataSource->getSize(&fileoffset);
LOGD("APESource::readAt not enough read %d frmsize %x, filepos %x, filesize %x", n, frame_size, mCurrentPos + frame_size, fileoffset);
//if ((mCurrentPos + frame_size) >= fileoffset
// && (mCurrentPos + frame_size) < mTableOfContents[mTotalFrame - 1])
if ((mCurrentPos + frame_size) >= fileoffset && (mCurrentPos + frame_size) < mTableOfContents[mSt_bound- 1])
{
memset(buffer->data(), 0, buffer->size());
/// for this file is not complete error, frame buffer should not transfer to avoid decoding noise data.
LOGD("APESource::file is not enough to end --> memset");
}
}
else if (n <= 0)
{
buffer->release();
buffer = NULL;
LOGD("APESource::readAt EOS filepos %x frmsize %d", mCurrentPos, frame_size);
return ERROR_END_OF_STREAM;
}
buffer->set_range(0, frame_size);
if (options != NULL && options->getSeekTo(&seekTimeUs, &mode))
{
buffer->meta_data()->setInt64(kKeyTime, mCurrentTimeUs);
buffer->meta_data()->setInt32(kKeyNemFrame, newframe);
buffer->meta_data()->setInt32(kKeySeekByte, firstbyte);
}
buffer->meta_data()->setInt32(kKeyIsSyncFrame, 1);
mCurrentPos += frame_size;
mCurrentTimeUs += (int64_t)(frame_size * 8000000ll) / bitrate ;
#ifdef ENABLE_MMRIOTHREAD
UpdateReadPtr(frame_size);
#endif
*out = buffer;
///LOGE("APESource::kKeyTime done %x %lld", mCurrentPos, mCurrentTimeUs);
return OK;
}