diff options
Diffstat (limited to 'source/gameengine/VideoTexture/VideoFFmpeg.cpp')
| -rw-r--r-- | source/gameengine/VideoTexture/VideoFFmpeg.cpp | 86 |
1 files changed, 67 insertions, 19 deletions
diff --git a/source/gameengine/VideoTexture/VideoFFmpeg.cpp b/source/gameengine/VideoTexture/VideoFFmpeg.cpp index 5265b0ecb93..1a5481488c0 100644 --- a/source/gameengine/VideoTexture/VideoFFmpeg.cpp +++ b/source/gameengine/VideoTexture/VideoFFmpeg.cpp @@ -117,6 +117,7 @@ bool VideoFFmpeg::release() } m_codec = NULL; m_status = SourceStopped; + m_lastFrame = -1; return true; } @@ -669,12 +670,12 @@ bool VideoFFmpeg::play (void) } -// stop video -bool VideoFFmpeg::stop (void) +// pause video +bool VideoFFmpeg::pause (void) { try { - if (VideoBase::stop()) + if (VideoBase::pause()) { return true; } @@ -683,6 +684,20 @@ bool VideoFFmpeg::stop (void) 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 +736,8 @@ void VideoFFmpeg::loadFrame (void) { // get actual time double startTime = PIL_check_seconds_timer(); + if (m_lastFrame == -1 && !m_isFile) + m_startTime = startTime; double actTime = startTime - m_startTime; // if video has ended if (m_isFile && actTime * m_frameRate >= m_range[1]) @@ -886,28 +903,47 @@ AVFrame *VideoFFmpeg::grabFrame(long position) 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 +1133,9 @@ int VideoFFmpeg_setDeinterlace (PyImage * self, PyObject * value, void * closure // 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} }; @@ -1123,8 +1160,13 @@ static PyGetSetDef videoGetSets[] = // python type declaration PyTypeObject VideoFFmpegType = { - PyObject_HEAD_INIT(NULL) +#if (PY_VERSION_HEX >= 0x02060000) + PyVarObject_HEAD_INIT(NULL, 0) +#else + /* python 2.5 and below */ + PyObject_HEAD_INIT( NULL ) /* required py macro */ 0, /*ob_size*/ +#endif "VideoTexture.VideoFFmpeg", /*tp_name*/ sizeof(PyImage), /*tp_basicsize*/ 0, /*tp_itemsize*/ @@ -1173,7 +1215,7 @@ static int ImageFFmpeg_init (PyObject * pySelf, PyObject * args, PyObject * kwds char * file = NULL; // get parameters - if (!PyArg_ParseTuple(args, "s", &file)) + if (!PyArg_ParseTuple(args, "s:ImageFFmpeg", &file)) return -1; try @@ -1198,8 +1240,9 @@ static int ImageFFmpeg_init (PyObject * pySelf, PyObject * args, PyObject * kwds PyObject * Image_reload (PyImage * self, PyObject *args) { char * newname = NULL; - - if (self->m_image != NULL && PyArg_ParseTuple(args, "|s", &newname)) + if (!PyArg_ParseTuple(args, "|s:reload", &newname)) + return NULL; + if (self->m_image != NULL) { VideoFFmpeg* video = getFFmpeg(self); // check type of object @@ -1241,8 +1284,13 @@ static PyGetSetDef imageGetSets[] = // python type declaration PyTypeObject ImageFFmpegType = { - PyObject_HEAD_INIT(NULL) +#if (PY_VERSION_HEX >= 0x02060000) + PyVarObject_HEAD_INIT(NULL, 0) +#else + /* python 2.5 and below */ + PyObject_HEAD_INIT( NULL ) /* required py macro */ 0, /*ob_size*/ +#endif "VideoTexture.ImageFFmpeg", /*tp_name*/ sizeof(PyImage), /*tp_basicsize*/ 0, /*tp_itemsize*/ |