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Gst player backend: don't show the first frame when resuming playback.

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It's necessary to temporarily disable show-preroll-frame of video sink,
load pipeline to paused state, seek to requested position,
and after seeking is finished (position updated) playback is started
with show-preroll-frame restored.

Task-number: MOBILITY-3030
Reviewed-by: Jonas Rabbe
Change-Id: Ide1e6d909dd53f670229c293bc6be496a54e8626
(cherry picked from commit 625cce87e28fc7b5ec8785824affb3129fd3607b)
Reviewed-on: http://codereview.qt-project.org/5500
Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: Jonas Rabbe <jonas.rabbe@nokia.com>
This commit is contained in:
Dmytro Poplavskiy
2011-08-29 16:09:04 +10:00
committed by Qt by Nokia
parent a328dab2e3
commit 7941413f3f
4 changed files with 55 additions and 3 deletions
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20
src/plugins/gstreamer/mediaplayer/qgstreamerplayersession.cpp
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@@ -103,6 +103,7 @@ QGstreamerPlayerSession::QGstreamerPlayerSession(QObject *parent)
m_lastPosition(0),
m_duration(-1),
m_durationQueries(0),
m_displayPrerolledFrame(true),
m_sourceType(UnknownSrc),
m_everPlayed(false),
m_isLiveSource(false)
@@ -536,6 +537,11 @@ void QGstreamerPlayerSession::setVideoRenderer(QObject *videoOutput)
linked = gst_element_link_many(m_videoIdentity, m_colorSpace, m_videoSink, NULL);
}
if (g_object_class_find_property(G_OBJECT_GET_CLASS(m_videoSink), "show-preroll-frame") != 0) {
gboolean value = m_displayPrerolledFrame;
g_object_set(G_OBJECT(m_videoSink), "show-preroll-frame", value, NULL);
}
switch (m_pendingState) {
case QMediaPlayer::PausedState:
gst_element_set_state(m_playbin, GST_STATE_PAUSED);
@@ -1596,3 +1602,17 @@ void QGstreamerPlayerSession::processInvalidMedia(QMediaPlayer::Error errorCode,
stop();
emit error(int(errorCode), errorString);
}
void QGstreamerPlayerSession::showPrerollFrames(bool enabled)
{
#ifdef DEBUG_PLAYBIN
qDebug() << Q_FUNC_INFO << enabled;
#endif
if (enabled != m_displayPrerolledFrame && m_videoSink &&
g_object_class_find_property(G_OBJECT_GET_CLASS(m_videoSink), "show-preroll-frame") != 0) {
gboolean value = enabled;
g_object_set(G_OBJECT(m_videoSink), "show-preroll-frame", value, NULL);
m_displayPrerolledFrame = enabled;
}
}