std::string OMXPlayerVideo::GetText()
{
OMXPacket *pkt = NULL;
std::string strSubtitle = "";
LockSubtitles();
if (!m_subtitle_packets.empty())
{
pkt = m_subtitle_packets.front();
if(!m_overlays.empty())
{
COMXOverlay *overlay = m_overlays.front();
double now = m_av_clock->GetClock();
double iPTSStartTime = pkt->pts;
double iPTSStopTime = (overlay->iPTSStartTime > 0) ? iPTSStartTime + (overlay->iPTSStopTime - overlay->iPTSStartTime) : 0LL;
if((iPTSStartTime <= now)
&& (iPTSStopTime >= now || iPTSStopTime == 0LL))
{
COMXOverlayText::CElement* e = ((COMXOverlayText*)overlay)->m_pHead;
while (e)
{
if (e->IsElementType(COMXOverlayText::ELEMENT_TYPE_TEXT))
{
COMXOverlayText::CElementText* t = (COMXOverlayText::CElementText*)e;
strSubtitle += t->m_text;
strSubtitle += "\n";
}
e = e->pNext;
}
}
else if(iPTSStopTime < now)
{
m_subtitle_packets.pop_front();
m_overlays.pop_front();
delete overlay;
OMXReader::FreePacket(pkt);
}
}
}
UnLockSubtitles();
return strSubtitle;
}
bool OMXPlayerVideo::Decode(OMXPacket *pkt)
{
if(!pkt)
return false;
bool ret = false;
if(!((unsigned long)m_decoder->GetFreeSpace() > pkt->size))
OMXClock::OMXSleep(10);
if (pkt->dts == DVD_NOPTS_VALUE && pkt->pts == DVD_NOPTS_VALUE)
pkt->pts = m_pts;
else if (pkt->pts == DVD_NOPTS_VALUE)
pkt->pts = pkt->dts;
if(pkt->pts != DVD_NOPTS_VALUE)
{
m_pts = pkt->pts;
m_pts += m_iVideoDelay;
}
if(pkt->hints.codec == CODEC_ID_TEXT ||
pkt->hints.codec == CODEC_ID_SSA )
{
if(!m_pSubtitleCodec)
{
m_pSubtitleCodec = new COMXOverlayCodecText();
m_pSubtitleCodec->Open( pkt->hints );
}
int result = m_pSubtitleCodec->Decode(pkt->data, pkt->size, pkt->pts, pkt->duration);
COMXOverlay* overlay;
std::string strSubtitle = "";
double pts = pkt->dts != DVD_NOPTS_VALUE ? pkt->dts : pkt->pts;
double duration = pkt->duration;
if(result == OC_OVERLAY)
{
while((overlay = m_pSubtitleCodec->GetOverlay()) != NULL)
{
if(overlay->iPTSStopTime > overlay->iPTSStartTime)
duration = overlay->iPTSStopTime - overlay->iPTSStartTime;
else if(pkt->duration != DVD_NOPTS_VALUE)
duration = pkt->duration;
else
duration = 0.0;
if (pkt->pts != DVD_NOPTS_VALUE)
pts = pkt->pts;
else if(pkt->dts != DVD_NOPTS_VALUE)
pts = pkt->dts;
else
pts = overlay->iPTSStartTime;
pts -= m_iSubtitleDelay;
overlay->iPTSStartTime = pts;
if(duration)
overlay->iPTSStopTime = pts + duration;
else
{
overlay->iPTSStopTime = 0;
overlay->replace = true;
}
COMXOverlayText::CElement* e = ((COMXOverlayText*)overlay)->m_pHead;
while (e)
{
if (e->IsElementType(COMXOverlayText::ELEMENT_TYPE_TEXT))
{
COMXOverlayText::CElementText* t = (COMXOverlayText::CElementText*)e;
strSubtitle += t->m_text;
strSubtitle += "\n";
}
e = e->pNext;
}
m_overlays.push_back(overlay);
if(strSubtitle.length())
m_decoder->DecodeText((uint8_t *)strSubtitle.c_str(), strSubtitle.length(), overlay->iPTSStartTime, overlay->iPTSStartTime);
}
}
ret = true;
}
else if((unsigned long)m_decoder->GetFreeSpace() > pkt->size)
{
if(m_bMpeg)
m_decoder->Decode(pkt->data, pkt->size, DVD_NOPTS_VALUE, DVD_NOPTS_VALUE);
else
m_decoder->Decode(pkt->data, pkt->size, m_pts, m_pts);
m_av_clock->SetVideoClock(m_pts);
Output(m_pts);
ret = true;
}
return ret;
}
bool OMXPlayerVideo::Decode(OMXPacket *pkt)
{
if(!pkt)
return false;
if(pkt->hints.codec == AV_CODEC_ID_TEXT ||
pkt->hints.codec == AV_CODEC_ID_SSA )
{
if(!m_pSubtitleCodec)
{
m_pSubtitleCodec = new COMXOverlayCodecText();
m_pSubtitleCodec->Open( pkt->hints );
}
int result = m_pSubtitleCodec->Decode(pkt->data, pkt->size, pkt->pts, pkt->duration);
COMXOverlay* overlay;
std::string strSubtitle = "";
double pts = pkt->dts != DVD_NOPTS_VALUE ? pkt->dts : pkt->pts;
double duration = pkt->duration;
if(result == OC_OVERLAY)
{
while((overlay = m_pSubtitleCodec->GetOverlay()) != NULL)
{
if(overlay->iPTSStopTime > overlay->iPTSStartTime)
duration = overlay->iPTSStopTime - overlay->iPTSStartTime;
else if(pkt->duration != DVD_NOPTS_VALUE)
duration = pkt->duration;
else
duration = 0.0;
if (pkt->pts != DVD_NOPTS_VALUE)
pts = pkt->pts;
else if(pkt->dts != DVD_NOPTS_VALUE)
pts = pkt->dts;
else
pts = overlay->iPTSStartTime;
pts -= m_iSubtitleDelay;
overlay->iPTSStartTime = pts;
if(duration)
overlay->iPTSStopTime = pts + duration;
else
{
overlay->iPTSStopTime = 0;
overlay->replace = true;
}
COMXOverlayText::CElement* e = ((COMXOverlayText*)overlay)->m_pHead;
while (e)
{
if (e->IsElementType(COMXOverlayText::ELEMENT_TYPE_TEXT))
{
COMXOverlayText::CElementText* t = (COMXOverlayText::CElementText*)e;
strSubtitle += t->m_text;
strSubtitle += "\n";
}
e = e->pNext;
}
m_overlays.push_back(overlay);
if(strSubtitle.length())
m_decoder->DecodeText((uint8_t *)strSubtitle.c_str(), strSubtitle.length(), overlay->iPTSStartTime, overlay->iPTSStartTime);
}
}
}
else
{
// some packed bitstream AVI files set almost all pts values to DVD_NOPTS_VALUE, but have a scattering of real pts values.
// the valid pts values match the dts values.
// if a stream has had more than 4 valid pts values in the last 16, the use UNKNOWN, otherwise use dts
m_history_valid_pts = (m_history_valid_pts << 1) | (pkt->pts != DVD_NOPTS_VALUE);
double pts = pkt->pts;
if(pkt->pts == DVD_NOPTS_VALUE && (m_iCurrentPts == DVD_NOPTS_VALUE || count_bits(m_history_valid_pts & 0xffff) < 4))
pts = pkt->dts;
if (pts != DVD_NOPTS_VALUE)
pts += m_iVideoDelay;
if(pts != DVD_NOPTS_VALUE)
m_iCurrentPts = pts;
while((int) m_decoder->GetFreeSpace() < pkt->size)
{
OMXClock::OMXSleep(10);
if(m_flush_requested) return true;
}
CLog::Log(LOGINFO, "CDVDPlayerVideo::Decode dts:%.0f pts:%.0f cur:%.0f, size:%d", pkt->dts, pkt->pts, m_iCurrentPts, pkt->size);
m_decoder->Decode(pkt->data, pkt->size, pts);
}
return true;
}
