[Bf-blender-cvs] SVN commit: /data/svn/bf-blender [20435] trunk/blender/source/gameengine/ VideoTexture: BGE VideoTexture: VideoFFmpeg was missing a rewind function: rename stop() to pause() and add stop() that will also reset the frame counter.
Benoit Bolsee
benoit.bolsee at online.be
Tue May 26 20:37:46 CEST 2009
Revision: 20435
http://projects.blender.org/plugins/scmsvn/viewcvs.php?view=rev&root=bf-blender&revision=20435
Author: ben2610
Date: 2009-05-26 20:37:46 +0200 (Tue, 26 May 2009)
Log Message:
-----------
BGE VideoTexture: VideoFFmpeg was missing a rewind function: rename stop() to pause() and add stop() that will also reset the frame counter.
Modified Paths:
--------------
trunk/blender/source/gameengine/VideoTexture/VideoBase.cpp
trunk/blender/source/gameengine/VideoTexture/VideoBase.h
trunk/blender/source/gameengine/VideoTexture/VideoFFmpeg.cpp
trunk/blender/source/gameengine/VideoTexture/VideoFFmpeg.h
Modified: trunk/blender/source/gameengine/VideoTexture/VideoBase.cpp
===================================================================
--- trunk/blender/source/gameengine/VideoTexture/VideoBase.cpp 2009-05-26 18:06:09 UTC (rev 20434)
+++ trunk/blender/source/gameengine/VideoTexture/VideoBase.cpp 2009-05-26 18:37:46 UTC (rev 20435)
@@ -113,7 +113,10 @@
PyObject * Video_play (PyImage * self)
{ if (getVideo(self)->play()) Py_RETURN_TRUE; else Py_RETURN_FALSE; }
-// stop video
+// pause video
+PyObject * Video_pause (PyImage * self)
+{ if (getVideo(self)->pause()) Py_RETURN_TRUE; else Py_RETURN_FALSE; }
+
PyObject * Video_stop (PyImage * self)
{ if (getVideo(self)->stop()) Py_RETURN_TRUE; else Py_RETURN_FALSE; }
Modified: trunk/blender/source/gameengine/VideoTexture/VideoBase.h
===================================================================
--- trunk/blender/source/gameengine/VideoTexture/VideoBase.h 2009-05-26 18:06:09 UTC (rev 20434)
+++ trunk/blender/source/gameengine/VideoTexture/VideoBase.h 2009-05-26 18:37:46 UTC (rev 20435)
@@ -80,7 +80,17 @@
}
return false;
}
- /// stop/pause video
+ /// pause video
+ virtual bool pause (void)
+ {
+ if (m_status == SourcePlaying)
+ {
+ m_status = SourceStopped;
+ return true;
+ }
+ return false;
+ }
+ /// stop video
virtual bool stop (void)
{
if (m_status == SourcePlaying)
@@ -170,6 +180,7 @@
// video functions
void Video_open (VideoBase * self, char * file, short captureID);
PyObject * Video_play (PyImage * self);
+PyObject * Video_pause (PyImage * self);
PyObject * Video_stop (PyImage * self);
PyObject * Video_refresh (PyImage * self);
PyObject * Video_getStatus (PyImage * self, void * closure);
Modified: trunk/blender/source/gameengine/VideoTexture/VideoFFmpeg.cpp
===================================================================
--- trunk/blender/source/gameengine/VideoTexture/VideoFFmpeg.cpp 2009-05-26 18:06:09 UTC (rev 20434)
+++ trunk/blender/source/gameengine/VideoTexture/VideoFFmpeg.cpp 2009-05-26 18:37:46 UTC (rev 20435)
@@ -669,12 +669,12 @@
}
-// stop video
-bool VideoFFmpeg::stop (void)
+// pause video
+bool VideoFFmpeg::pause (void)
{
try
{
- if (VideoBase::stop())
+ if (VideoBase::pause())
{
return true;
}
@@ -683,7 +683,21 @@
return false;
}
+// stop video
+bool VideoFFmpeg::stop (void)
+{
+ try
+ {
+ VideoBase::stop();
+ // force restart when play
+ m_lastFrame = -1;
+ return true;
+ }
+ CATCH_EXCP;
+ return false;
+}
+
// set video range
void VideoFFmpeg::setRange (double start, double stop)
{
@@ -721,6 +735,8 @@
{
// get actual time
double startTime = PIL_check_seconds_timer();
+ if (m_lastFrame == -1)
+ m_startTime = startTime;
double actTime = startTime - m_startTime;
// if video has ended
if (m_isFile && actTime * m_frameRate >= m_range[1])
@@ -886,28 +902,47 @@
if (position != m_curPosition + 1)
{
double timeBase = av_q2d(m_formatCtx->streams[m_videoStream]->time_base);
- long long pos = (long long)
- ((long long) (position - m_preseek) * AV_TIME_BASE / m_baseFrameRate);
- long long startTs = m_formatCtx->streams[m_videoStream]->start_time;
+ int64_t pos = (int64_t)((position - m_preseek) / (m_baseFrameRate*timeBase));
+ int64_t startTs = m_formatCtx->streams[m_videoStream]->start_time;
+ int seekres;
if (pos < 0)
pos = 0;
if (startTs != AV_NOPTS_VALUE)
- pos += (long long)(startTs * AV_TIME_BASE * timeBase);
+ pos += startTs;
if (position <= m_curPosition || !m_eof)
{
- // no need to seek past the end of the file
- if (av_seek_frame(m_formatCtx, -1, pos, AVSEEK_FLAG_BACKWARD) >= 0)
+#if 0
+ // Tried to make this work but couldn't: seeking on byte is ignored by the
+ // format plugin and it will generally continue to read from last timestamp.
+ // Too bad because frame seek is not always able to get the first frame
+ // of the file.
+ if (position <= m_preseek)
{
+ // we can safely go the begining of the file
+ if (av_seek_frame(m_formatCtx, m_videoStream, 0, AVSEEK_FLAG_BYTE) >= 0)
+ {
+ // binary seek does not reset the timestamp, must do it now
+ av_update_cur_dts(m_formatCtx, m_formatCtx->streams[m_videoStream], startTs);
+ m_curPosition = 0;
+ }
+ }
+ else
+#endif
+ {
// current position is now lost, guess a value.
- // It's not important because it will be set at this end of this function
- m_curPosition = position - m_preseek - 1;
+ if (av_seek_frame(m_formatCtx, m_videoStream, pos, AVSEEK_FLAG_BACKWARD) >= 0)
+ {
+ // current position is now lost, guess a value.
+ // It's not important because it will be set at this end of this function
+ m_curPosition = position - m_preseek - 1;
+ }
}
}
// this is the timestamp of the frame we're looking for
- targetTs = (long long)(((double) position) / m_baseFrameRate / timeBase);
+ targetTs = (int64_t)(position / (m_baseFrameRate * timeBase));
if (startTs != AV_NOPTS_VALUE)
targetTs += startTs;
@@ -1097,8 +1132,9 @@
// methods structure
static PyMethodDef videoMethods[] =
{ // methods from VideoBase class
- {"play", (PyCFunction)Video_play, METH_NOARGS, "Play video"},
- {"stop", (PyCFunction)Video_stop, METH_NOARGS, "Stop (pause) video"},
+ {"play", (PyCFunction)Video_play, METH_NOARGS, "Play (restart) video"},
+ {"pause", (PyCFunction)Video_pause, METH_NOARGS, "pause video"},
+ {"stop", (PyCFunction)Video_stop, METH_NOARGS, "stop video (play will replay it from start)"},
{"refresh", (PyCFunction)Video_refresh, METH_NOARGS, "Refresh video - get its status"},
{NULL}
};
Modified: trunk/blender/source/gameengine/VideoTexture/VideoFFmpeg.h
===================================================================
--- trunk/blender/source/gameengine/VideoTexture/VideoFFmpeg.h 2009-05-26 18:06:09 UTC (rev 20434)
+++ trunk/blender/source/gameengine/VideoTexture/VideoFFmpeg.h 2009-05-26 18:37:46 UTC (rev 20435)
@@ -83,9 +83,10 @@
/// play video
virtual bool play (void);
- /// stop/pause video
+ /// pause video
+ virtual bool pause (void);
+ /// stop video
virtual bool stop (void);
-
/// set play range
virtual void setRange (double start, double stop);
/// set frame rate
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