It use QAudioRecorder as its background worker. This is a widget application, not a QML application. usr/share/qt5/examples/multimedia/audiorecorder/audiorecorder So QT mediaplayer can’t support RTP playing directly. QT mediaplayer use gstreamer playbin as the backend, playbin don’t support rtp address as uri. Or use the attached patch: qtmultimedia_fps_check.diff + printf("> fps=%f:\n", (gdouble)g_frame_showed*1000/g_time.elapsed()) īool QVideoSurfaceGstDelegate::handleEvent(QMutexLocker *locker)Ĭonst bool rendered = m_activeRenderer->present(m_surface, buffer) In "/src/gsttools/qgstvideorenderersink.cpp"īool QVideoSurfaceGstDelegate::start(GstCaps *caps) + g_object_set(G_OBJECT(self->m_videoSink), "sync", false/ !self->m_isLiveSource/, NULL) g_object_set(G_OBJECT(self->m_videoSink), "sync", !self->m_isLiveSource, NULL) QGstreamerPlayerSession::playbinNotifySource():
In "/src/plugins/gstreamer/mediaplayer/qgstreamerplayersession.cpp" For check the free run frame rate, the qt multimedia source need change a little bit to set sink sync as false and calculate the real video rendering rate. So the rendering performance is almost same as the glimagesink. qmlvideo -url file:///H264_AVC_1080p_30fps_27Mbps_mp3.avi -hide-perfĬurrent qt5 multimedia has a special video node for im圆 at "/src/plugins/videonode/im圆" which uses GPU DirectVIV to accelerate the video rendering. Turn on all logging level of all multimedia module:Įxport QT_LOGGING_RULES=qt.multimedia.*=true usr/share/qt5/examples/multimedia/video/qmlvideoĮxport QT_LOGGING_RULES=ture|false build-x11/tmp/work/cortexa9hf-vfp-neon-poky-linux-gnueabi/qtmultimedia/5.5.0+gitAUTOINC+46a83d5b86-r0/image/usr/ /usr
PACKAGECONFIG ?= " 'alsa', 'alsa', '', d)} 'pulseaudio', 'pulseaudio', '', d)} \Ģ) Build qtmultimedia: bitbake qtmultimediaģ) Copy the built package to target file system. įor example on 元.14.52 bsp, build x11 backend : 1) In “ source/meta-qt5/recipes-qt/qt5/qtmultimedia_git.bb ”, add “gstreamer” at the end of “PACKAGECONFIG ?=”.
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