////////////////////////////////////////////////////////////////
//
// CPixelsManager::ChangePixelsFormat
//
// JPEG <-> PNG <-> PLAIN
//
////////////////////////////////////////////////////////////////
bool CPixelsManager::ChangePixelsFormat ( const CPixels& oldPixels, CPixels& newPixels, EPixelsFormatType newFormat, int uiQuality )
{
EPixelsFormatType oldFormat = GetPixelsFormat ( oldPixels );
if ( oldFormat == EPixelsFormat::UNKNOWN || newFormat == EPixelsFormat::UNKNOWN )
return false;
if ( oldFormat == newFormat )
{
// No change
newPixels = oldPixels;
return true;
}
if ( oldFormat == EPixelsFormat::PLAIN )
{
// Encode
uint uiWidth, uiHeight;
if ( !GetPixelsSize ( oldPixels, uiWidth, uiHeight ) )
return false;
if ( newFormat == EPixelsFormat::JPEG )
return JpegEncode ( uiWidth, uiHeight, uiQuality, oldPixels.GetData (), oldPixels.GetSize () - 4, newPixels.buffer );
else
if ( newFormat == EPixelsFormat::PNG )
return PngEncode ( uiWidth, uiHeight, oldPixels.GetData (), oldPixels.GetSize () - 4, newPixels.buffer );
}
else
if ( newFormat == EPixelsFormat::PLAIN )
{
// Decode
if ( oldFormat == EPixelsFormat::JPEG )
{
uint uiWidth, uiHeight;
if ( JpegDecode ( oldPixels.GetData (), oldPixels.GetSize (), newPixels.buffer, uiWidth, uiHeight ) )
{
newPixels.buffer.SetSize ( uiWidth * uiHeight * 4 + SIZEOF_PLAIN_TAIL );
return SetPlainDimensions ( newPixels, uiWidth, uiHeight );
}
}
else
if ( oldFormat == EPixelsFormat::PNG )
{
uint uiWidth, uiHeight;
if ( PngDecode ( oldPixels.GetData (), oldPixels.GetSize (), newPixels.buffer, uiWidth, uiHeight ) )
{
newPixels.buffer.SetSize ( uiWidth * uiHeight * 4 + SIZEOF_PLAIN_TAIL );
return SetPlainDimensions ( newPixels, uiWidth, uiHeight );
}
}
}
else
{
// Recode
CPixels tempPixels;
if ( ChangePixelsFormat ( oldPixels, tempPixels, EPixelsFormat::PLAIN ) )
return ChangePixelsFormat ( tempPixels, newPixels, newFormat, uiQuality );
}
return false;
}
static int uvc_video_process_internal(struct uvc_device *dev, V4L2BUF_t *pbuf)
{
struct v4l2_buffer buf;
int ret;
memset(&buf, 0, sizeof buf);
buf.type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
buf.memory = V4L2_MEMORY_MMAP;
if ((ret = ioctl(dev->fd, VIDIOC_DQBUF, &buf)) < 0) {
ALOGE("Unable to dequeue buffer: %s (%d).", strerror(errno), errno);
return ret;
}
//uvc_video_fill_buffer(dev, &buf, pbuf);
//memcpy(dev->mem[buf.index], pbuf->addrVirY, pbuf->bytesused);
//buf.bytesused = pbuf->bytesused;
if (JpegEncode(dev, pbuf, dev->mem[buf.index], &buf.bytesused) < 0) {
ALOGE("%s: JpegEncode failed.", __func__);
buf.bytesused = 0;
}
if ((ret = ioctl(dev->fd, VIDIOC_QBUF, &buf)) < 0) {
ALOGE("Unable to requeue buffer: %s (%d).", strerror(errno), errno);
return ret;
}
return 0;
}
///////////////////////////////////////////////////////////////
//
// CCompressorJobQueueImpl::ProcessCommand
//
//
//
///////////////////////////////////////////////////////////////
void CCompressorJobQueueImpl::ProcessCommand ( CCompressJobData* pJobData )
{
uint uiSizeX = pJobData->command.uiSizeX;
uint uiSizeY = pJobData->command.uiSizeY;
uint uiQuality = pJobData->command.uiQuality;
const CBuffer& inBuffer = pJobData->command.buffer;
CBuffer& outBuffer = pJobData->result.buffer;
// JPEG compress here
JpegEncode ( uiSizeX, uiSizeY, uiQuality, inBuffer.GetData (), inBuffer.GetSize (), outBuffer );
pJobData->result.status = EJobResult::SUCCESS;
}
