bool ofGstVideoPlayer::allocate(int bpp){
if(bIsAllocated) return true;
guint64 durationNanos = videoUtils.getDurationNanos();
nFrames = 0;
if(GstPad* pad = gst_element_get_static_pad(videoUtils.getSink(), "sink")){
#if GST_VERSION_MAJOR==0
int width,height;
if(gst_video_get_size(GST_PAD(pad), &width, &height)){
if(!videoUtils.allocate(width,height,bpp)) return false;
}else{
ofLogError("ofGstVideoPlayer") << "allocate(): couldn't query width and height";
return false;
}
const GValue *framerate = gst_video_frame_rate(pad);
fps_n=0;
fps_d=0;
if(framerate && GST_VALUE_HOLDS_FRACTION (framerate)){
fps_n = gst_value_get_fraction_numerator (framerate);
fps_d = gst_value_get_fraction_denominator (framerate);
nFrames = (float)(durationNanos / (float)GST_SECOND) * (float)fps_n/(float)fps_d;
ofLogVerbose("ofGstVideoPlayer") << "allocate(): framerate: " << fps_n << "/" << fps_d;
}else{
ofLogWarning("ofGstVideoPlayer") << "allocate(): cannot get framerate, frame seek won't work";
}
bIsAllocated = true;
#else
if(GstCaps *caps = gst_pad_get_current_caps (GST_PAD (pad))){
GstVideoInfo info;
gst_video_info_init (&info);
if (gst_video_info_from_caps (&info, caps)){
if(!videoUtils.allocate(info.width,info.height,bpp)) return false;
}else{
ofLogError("ofGstVideoPlayer") << "allocate(): couldn't query width and height";
return false;
}
fps_n = info.fps_n;
fps_d = info.fps_d;
nFrames = (float)(durationNanos / (float)GST_SECOND) * (float)fps_n/(float)fps_d;
gst_caps_unref(caps);
bIsAllocated = true;
}else{
ofLogError("ofGstVideoPlayer") << "allocate(): cannot get pipeline caps";
bIsAllocated = false;
}
#endif
gst_object_unref(GST_OBJECT(pad));
}else{
ofLogError("ofGstVideoPlayer") << "allocate(): cannot get sink pad";
bIsAllocated = false;
}
return bIsAllocated;
}
// Returns the size of the video
IntSize MediaPlayerPrivate::naturalSize() const
{
if (!hasVideo())
return IntSize();
int x = 0, y = 0;
if (GstPad* pad = gst_element_get_static_pad(m_videoSink, "sink")) {
gst_video_get_size(GST_PAD(pad), &x, &y);
gst_object_unref(GST_OBJECT(pad));
}
return IntSize(x, y);
}
void GStreamerWrapper::retrieveVideoInfo()
{
////////////////////////////////////////////////////////////////////////// Media Duration
// Nanoseconds
GstFormat gstFormat = GST_FORMAT_TIME;
gst_element_query_duration( GST_ELEMENT( m_GstPipeline ), &gstFormat, &m_iDurationInNs );
// Milliseconds
m_dDurationInMs = GST_TIME_AS_MSECONDS( m_iDurationInNs );
////////////////////////////////////////////////////////////////////////// Stream Info
// Number of Video Streams
g_object_get( m_GstPipeline, "n-video", &m_iNumVideoStreams, NULL );
// Number of Audio Streams
g_object_get( m_GstPipeline, "n-audio", &m_iNumAudioStreams, NULL );
// Set Content Type according to the number of available Video and Audio streams
if ( m_iNumVideoStreams > 0 && m_iNumAudioStreams > 0 )
m_ContentType = VIDEO_AND_AUDIO;
else if ( m_iNumVideoStreams > 0 )
m_ContentType = VIDEO;
else if ( m_iNumAudioStreams > 0 )
m_ContentType = AUDIO;
////////////////////////////////////////////////////////////////////////// Video Data
if ( m_iNumVideoStreams > 0 )
{
GstPad* gstPad = gst_element_get_static_pad( m_GstVideoSink, "sink" );
if ( gstPad )
{
// Video Size
gst_video_get_size( GST_PAD( gstPad ), &m_iWidth, &m_iHeight );
// Frame Rate
const GValue* framerate = gst_video_frame_rate( gstPad );
int iFpsNumerator = gst_value_get_fraction_numerator( framerate );
int iFpsDenominator = gst_value_get_fraction_denominator( framerate );
// Number of frames
m_iNumberOfFrames = (float)( m_iDurationInNs / GST_SECOND ) * (float)iFpsNumerator / (float)iFpsDenominator;
// FPS
m_fFps = (float)iFpsNumerator / (float)iFpsDenominator;
gst_object_unref( gstPad );
}
}
}
bool ofGstVideoPlayer::allocate(int bpp){
if(bIsAllocated) return true;
guint64 durationNanos = videoUtils.getDurationNanos();
nFrames = 0;
if(GstPad* pad = gst_element_get_static_pad(videoUtils.getSink(), "sink")){
int width,height;
if(gst_video_get_size(GST_PAD(pad), &width, &height)){
if(!videoUtils.allocate(width,height,bpp)) return false;
}else{
ofLog(OF_LOG_ERROR,"GStreamer: cannot query width and height");
return false;
}
const GValue *framerate;
framerate = gst_video_frame_rate(pad);
fps_n=0;
fps_d=0;
if(framerate && GST_VALUE_HOLDS_FRACTION (framerate)){
fps_n = gst_value_get_fraction_numerator (framerate);
fps_d = gst_value_get_fraction_denominator (framerate);
nFrames = (float)(durationNanos / GST_SECOND) * (float)fps_n/(float)fps_d;
ofLog(OF_LOG_VERBOSE,"ofGstUtils: framerate: %i/%i",fps_n,fps_d);
}else{
ofLog(OF_LOG_WARNING,"Gstreamer: cannot get framerate, frame seek won't work");
}
gst_object_unref(GST_OBJECT(pad));
bIsAllocated = true;
}else{
ofLog(OF_LOG_ERROR,"GStreamer: cannot get sink pad");
bIsAllocated = false;
}
return bIsAllocated;
}
bool ofGstUtils::allocate(){
// wait for paused state to query the duration
if(!bIsStream){
GstState state = GST_STATE_PAUSED;
gst_element_get_state(gstPipeline,&state,NULL,2*GST_SECOND);
}
if(!bIsCamera){
GstFormat format=GST_FORMAT_TIME;
if(!gst_element_query_duration(gstPipeline,&format,&durationNanos))
ofLog(OF_LOG_WARNING,"GStreamer: cannot query time duration");
gstData.durationNanos = durationNanos;
gstData.nFrames = 0;
}
// query width, height, fps and do data allocation
if (bIsCamera) {
pixels=new unsigned char[width*height*bpp];
gstData.pixels=new unsigned char[width*height*bpp];
memset(pixels,0,width*height*bpp);
memset(gstData.pixels,0,width*height*bpp);
gstData.width = width;
gstData.height = height;
gstData.totalsize = 0;
gstData.lastFrame = 0;
}else if(gstSink!=NULL){
if(GstPad* pad = gst_element_get_static_pad(gstSink, "sink")){
if(gst_video_get_size(GST_PAD(pad), &width, &height)){
pixels=new unsigned char[width*height*bpp];
gstData.pixels=new unsigned char[width*height*bpp];;
memset(pixels,0,width*height*bpp);
memset(gstData.pixels,0,width*height*bpp);
gstData.width = width;
gstData.height = height;
gstData.totalsize = 0;
gstData.lastFrame = 0;
}else{
ofLog(OF_LOG_ERROR,"GStreamer: cannot query width and height");
return false;
}
const GValue *framerate;
framerate = gst_video_frame_rate(pad);
fps_n=0;
fps_d=0;
if(framerate && GST_VALUE_HOLDS_FRACTION (framerate)){
fps_n = gst_value_get_fraction_numerator (framerate);
fps_d = gst_value_get_fraction_denominator (framerate);
gstData.nFrames = (float)(durationNanos / GST_SECOND) * (float)fps_n/(float)fps_d;
ofLog(OF_LOG_VERBOSE,"ofGstUtils: framerate: %i/%i",fps_n,fps_d);
}else{
ofLog(OF_LOG_WARNING,"Gstreamer: cannot get framerate, frame seek won't work");
}
gst_object_unref(GST_OBJECT(pad));
}else{
ofLog(OF_LOG_ERROR,"GStreamer: cannot get sink pad");
return false;
}
}
bLoaded = true;
bHavePixelsChanged = true;
bStarted = true;
return bLoaded;
}
static void get_stream_information(TPMediaPlayer * mp)
{
USERDATA(mp);
CM(ud);
#if (CLUTTER_GST_MAJOR_VERSION < 1)
GstElement * pipeline=clutter_gst_video_texture_get_playbin(CLUTTER_GST_VIDEO_TEXTURE(cm));
#else
GstElement *pipeline=clutter_gst_video_texture_get_pipeline(CLUTTER_GST_VIDEO_TEXTURE(cm));
#endif
if (!pipeline)
return;
//.........................................................................
// Use stream info to get the type of each stream
#if (CLUTTER_GST_MAJOR_VERSION < 1)
GValueArray * info_array=NULL;
g_object_get(G_OBJECT(pipeline),"stream-info-value-array",&info_array,NULL);
if (info_array)
{
// Each entry in the array is information for a single stream
guint i;
for (i=0;i<info_array->n_values;++i)
{
GValue * info_value=g_value_array_get_nth(info_array,i);
if (G_VALUE_HOLDS(info_value,G_TYPE_OBJECT))
{
GObject * stream_info=g_value_get_object(info_value);
if (stream_info)
{
gint type = -1;
g_object_get(stream_info,"type",&type,NULL);
switch (type)
{
case 1:
ud->media_type|=TP_MEDIA_TYPE_AUDIO;
break;
case 2:
ud->media_type|=TP_MEDIA_TYPE_VIDEO;
break;
}
#if 0
// This lets you get the enum value associated with the stream type
GParamSpec *pspec;
GEnumValue *value;
pspec = g_object_class_find_property(G_OBJECT_GET_CLASS(stream_info),"type");
value = g_enum_get_value(G_PARAM_SPEC_ENUM(pspec)->enum_class,type);
g_debug(" STREAM TYPE IS %d %s",type,value->value_nick);
#endif
}
}
}
g_value_array_free(info_array);
}
#else
gint n_audio, n_video;
g_object_get(G_OBJECT(pipeline), "n-video", &n_video, NULL);
g_object_get(G_OBJECT(pipeline), "n-audio", &n_audio, NULL);
if(n_video) ud->media_type|=TP_MEDIA_TYPE_VIDEO;
if(n_audio) ud->media_type|=TP_MEDIA_TYPE_AUDIO;
#endif
//.........................................................................
// If there is a video stream, we get the video sink and try to find the
// video size
if (ud->media_type&TP_MEDIA_TYPE_VIDEO)
{
GstElement * video_sink=NULL;
g_object_get(G_OBJECT(pipeline),"video-sink",&video_sink,NULL);
if (video_sink)
{
GstPad * pad=gst_element_get_static_pad(video_sink,"sink");
if (pad)
{
// Get its video width and height
gint width;
gint height;
if (gst_video_get_size(pad,&width,&height))
{
ud->video_width=width;
ud->video_height=height;
}
gst_object_unref(GST_OBJECT(pad));
}
gst_object_unref(GST_OBJECT(video_sink));
}
}
#if 1
if ( ud->media_type & TP_MEDIA_TYPE_AUDIO )
{
GstElement * audio_sink= gst_element_factory_make( "autoaudiosink", "TPAudioSink" );
if(!audio_sink)
{
g_debug("Failed to create autoaudiosink");
}
else
{
g_object_set(G_OBJECT(pipeline),"audio-sink",audio_sink,NULL);
}
}
#endif
}
