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Some cleanup performed related to reverse playback #216.

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This commit is contained in:
Tats
2016-03-05 13:45:51 -05:00
parent 59e95e4c02
commit 218de01f6e
2 changed files with 26 additions and 18 deletions
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VideoImpl.cpp
+24 -16
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@@ -295,8 +295,14 @@ void VideoImpl::resetMovie()
{
if (_seekEnabled)
{
qDebug() << "Seeking at position 0." << endl;
seekTo(0L);
if (_rate > 0)
seekTo(0L);
else
{
// NOTE: Untested.
seekTo(_duration);
_updateRate();
}
}
else
{
@@ -684,10 +690,10 @@ bool VideoImpl::seekTo(double position)
position = qBound(0.0, position, 1.0);
// Seek at position in nanoseconds.
return seekTo((gint64)(position*duration));
return seekTo((guint64)(position*duration));
}
bool VideoImpl::seekTo(gint64 positionNanoSeconds)
bool VideoImpl::seekTo(guint64 positionNanoSeconds)
{
if (!_appsink0 || !_seekEnabled)
return false;
@@ -852,33 +858,33 @@ void VideoImpl::_setFinished(bool finished)
void VideoImpl::_updateRate()
{
// Check different things.
if (_pipeline == NULL)
{
qDebug() << "Cannot set rate: no pipeline!" << endl;
qWarning() << "Cannot set rate: no pipeline!" << endl;
return;
}
if (!_seekEnabled)
{
qDebug() << "Cannot set rate: seek not working" << endl;
qWarning() << "Cannot set rate: seek not working" << endl;
return;
}
if (!_isMovieReady())
{
qDebug() << "Movie is not yet ready to play, cannot seek yet." << endl;
qWarning() << "Movie is not yet ready to play, cannot seek yet." << endl;
}
// Obtain the current position, needed for the seek event.
gint64 position;
GstEvent *seekEvent;
/* Obtain the current position, needed for the seek event */
if (!gst_element_query_position (_pipeline, GST_FORMAT_TIME, &position)) {
g_printerr ("Unable to retrieve current position.\n");
qWarning() << "Unable to retrieve current position." << endl;
return;
}
/* Create the seek event */
// Create the seek event.
GstEvent *seekEvent;
if (_rate > 0) {
seekEvent = gst_event_new_seek (_rate, GST_FORMAT_TIME, GstSeekFlags( GST_SEEK_FLAG_FLUSH | GST_SEEK_FLAG_ACCURATE ),
GST_SEEK_TYPE_SET, position, GST_SEEK_TYPE_NONE, 0);
@@ -887,15 +893,17 @@ void VideoImpl::_updateRate()
GST_SEEK_TYPE_SET, 0, GST_SEEK_TYPE_SET, position);
}
// If we have not done so, obtain the sink through which we will send the seek events.
if (_appsink0 == NULL) {
/* If we have not done so, obtain the sink through which we will send the seek events */
g_object_get (_pipeline, "video-sink", &_appsink0, NULL);
}
/* Send the event */
gst_element_send_event (_appsink0, seekEvent);
// Send the event.
if (!gst_element_send_event (_appsink0, seekEvent)) {
qWarning() << "Cannot perform seek event" << endl;
}
g_print ("Current rate: %g\n", _rate);
qDebug() << "Current rate: " << _rate << "." << endl;
}
void VideoImpl::_freeCurrentSample() {