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Fix up AVI timing

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This commit is contained in:
Glenn Maynard
2003-09-02 05:31:47 +00:00
parent 250b70fcae
commit f269a2a73a
1 changed files with 15 additions and 20 deletions
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stepmania/src/arch/MovieTexture/MovieTexture_FFMpeg.cpp
+15 -20
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@@ -340,11 +340,12 @@ void MovieTexture_FFMpeg::CreateTexture()
void MovieTexture_FFMpeg::DecoderThread()
{
bool GetNextTimestamp = true;
float CurrentTimestamp = 0, LastGoodTimestamp = 0, Last_IP_Timestamp=0;
float CurrentTimestamp = 0, Last_IP_Timestamp = 0;
bool FrameSkipMode = false;
unsigned Frame = 0;
float LastFrameDelay = 0;
CHECKPOINT;
while( m_State != DECODER_QUIT )
{
@@ -394,12 +395,15 @@ void MovieTexture_FFMpeg::DecoderThread()
{
if ( GetNextTimestamp )
{
if (pkt.pts == AV_NOPTS_VALUE)
CurrentTimestamp = 0;
else
if (pkt.pts != AV_NOPTS_VALUE)
CurrentTimestamp = (float)pkt.pts * m_fctx->pts_num / m_fctx->pts_den;
if( CurrentTimestamp != 0 )
LastGoodTimestamp = CurrentTimestamp;
else
{
/* If the timestamp is zero, this frame is to be played at the
* time of the last frame plus the length of the last frame. */
CurrentTimestamp += LastFrameDelay;
}
GetNextTimestamp = false;
}
@@ -424,6 +428,10 @@ void MovieTexture_FFMpeg::DecoderThread()
++Frame;
/* Length of this frame: */
LastFrameDelay = (float)m_stream->codec.frame_rate_base / m_stream->codec.frame_rate;
LastFrameDelay += frame.repeat_pict * (LastFrameDelay * 0.5f);
/* We got a frame. Convert it. */
avcodec::AVPicture pict;
pict.data[0] = (unsigned char *)m_img->pixels;
@@ -433,19 +441,6 @@ void MovieTexture_FFMpeg::DecoderThread()
frame.pict_type != FF_B_TYPE )
swap( CurrentTimestamp, Last_IP_Timestamp );
if( CurrentTimestamp != 0 )
LastGoodTimestamp = CurrentTimestamp;
else {
/* If the timestamp is zero, guess what the timestamp
* would be. */
CurrentTimestamp = LastGoodTimestamp;
const float frame_delay = (float)m_stream->codec.frame_rate_base /
(float)m_stream->codec.frame_rate;
CurrentTimestamp += frame_delay;
CurrentTimestamp += frame.repeat_pict * (frame_delay * 0.5f);
}
m_Position = CurrentTimestamp;
const float Offset = CurrentTimestamp - m_Timer;