void cParserH264::Parse(sStreamPacket *pkt)
{
if (m_PesBufferPtr < 4)
return;
int p = m_PesParserPtr;
uint32_t startcode = m_StartCode;
bool frameComplete = false;
int l;
while ((l = m_PesBufferPtr - p) > 3)
{
if ((startcode & 0xffffff00) == 0x00000100)
{
if (Parse_H264(startcode, p, frameComplete) < 0)
{
break;
}
}
startcode = startcode << 8 | m_PesBuffer[p++];
}
m_PesParserPtr = p;
m_StartCode = startcode;
if (frameComplete)
{
if (!m_NeedSPS && !m_NeedIFrame)
{
double PAR = (double)m_PixelAspect.num/(double)m_PixelAspect.den;
double DAR = (PAR * m_Width) / m_Height;
DEBUGLOG("H.264 SPS: PAR %i:%i", m_PixelAspect.num, m_PixelAspect.den);
DEBUGLOG("H.264 SPS: DAR %.2f", DAR);
if (m_FpsScale == 0)
{
if (m_curDTS != DVD_NOPTS_VALUE && m_prevDTS != DVD_NOPTS_VALUE)
m_FpsScale = m_Stream->Rescale(m_curDTS - m_prevDTS, DVD_TIME_BASE, 90000);
else
m_FpsScale = 40000;
}
bool streamChange = m_Stream->SetVideoInformation(m_FpsScale, DVD_TIME_BASE, m_Height, m_Width, DAR);
int duration;
if (m_curDTS != DVD_NOPTS_VALUE && m_prevDTS != DVD_NOPTS_VALUE)
duration = m_curDTS - m_prevDTS;
else
duration = m_Stream->Rescale(m_FpsScale, 90000, DVD_TIME_BASE);
pkt->id = m_pID;
pkt->size = m_PesNextFramePtr;
pkt->data = m_PesBuffer;
pkt->dts = m_DTS;
pkt->pts = m_PTS;
pkt->duration = duration;
pkt->streamChange = streamChange;
}
m_StartCode = 0xffffffff;
m_PesParserPtr = 0;
m_FoundFrame = false;
}
}
void cParserH264::Parse(unsigned char *data, int size, bool pusi)
{
uint32_t startcode = m_StartCond;
if (m_pictureBuffer == NULL)
{
m_pictureBufferSize = 80000;
m_pictureBuffer = (uint8_t*)malloc(m_pictureBufferSize);
}
if (m_pictureBufferPtr + size + 4 >= m_pictureBufferSize)
{
m_pictureBufferSize += size * 4;
m_pictureBuffer = (uint8_t*)realloc(m_pictureBuffer, m_pictureBufferSize);
}
for (int i = 0; i < size; i++)
{
m_pictureBuffer[m_pictureBufferPtr++] = data[i];
startcode = startcode << 8 | data[i];
if ((startcode & 0xffffff00) != 0x00000100)
continue;
bool reset = true;
if (m_pictureBufferPtr - 4 > 0 && m_StartCode != 0)
{
reset = Parse_H264(m_pictureBufferPtr - 4, startcode, m_StartCodeOffset);
}
if (reset)
{
/* Reset packet parser upon length error or if parser tells us so */
m_pictureBufferPtr = 0;
m_pictureBuffer[m_pictureBufferPtr++] = startcode >> 24;
m_pictureBuffer[m_pictureBufferPtr++] = startcode >> 16;
m_pictureBuffer[m_pictureBufferPtr++] = startcode >> 8;
m_pictureBuffer[m_pictureBufferPtr++] = startcode >> 0;
}
m_StartCode = startcode;
m_StartCodeOffset = m_pictureBufferPtr - 4;
}
m_StartCond = startcode;
}
