void ofGstVideoUtils::update(){
if (isLoaded()){
if(!isFrameByFrame()){
mutex.lock();
bHavePixelsChanged = bBackPixelsChanged;
if (bHavePixelsChanged){
bBackPixelsChanged=false;
pixels = backPixels;
}
mutex.unlock();
}else{
GstBuffer *buffer;
//get the buffer from appsink
if(isPaused()) buffer = gst_app_sink_pull_preroll (GST_APP_SINK (getSink()));
else buffer = gst_app_sink_pull_buffer (GST_APP_SINK (getSink()));
if(buffer){
guint size = GST_BUFFER_SIZE (buffer);
if(pixels.isAllocated()){
memcpy (pixels.getPixels(), GST_BUFFER_DATA (buffer), size);
bHavePixelsChanged=true;
}
/// we don't need the appsink buffer anymore
gst_buffer_unref (buffer);
}
}
}else{
ofLog(OF_LOG_WARNING,"not loaded");
}
bIsFrameNew = bHavePixelsChanged;
bHavePixelsChanged = false;
}
void ofGstVideoUtils::update(){
if (isLoaded()){
if(!isFrameByFrame()){
mutex.lock();
bHavePixelsChanged = bBackPixelsChanged;
if (bHavePixelsChanged){
bBackPixelsChanged=false;
pixels.swap(backPixels);
#if GST_VERSION_MAJOR==0
if(prevBuffer) gst_buffer_unref (prevBuffer);
#else
if(prevBuffer) gst_sample_unref (prevBuffer);
#endif
prevBuffer = buffer;
}
mutex.unlock();
}else{
#if GST_VERSION_MAJOR==0
GstBuffer *buffer;
//get the buffer from appsink
if(isPaused()) buffer = gst_app_sink_pull_preroll (GST_APP_SINK (getSink()));
else buffer = gst_app_sink_pull_buffer (GST_APP_SINK (getSink()));
if(buffer){
if(pixels.isAllocated()){
if(prevBuffer) gst_buffer_unref (prevBuffer);
pixels.setFromExternalPixels(GST_BUFFER_DATA (buffer),pixels.getWidth(),pixels.getHeight(),pixels.getNumChannels());
prevBuffer = buffer;
bHavePixelsChanged=true;
}
}
}
#else
GstBuffer *buffer;
GstSample * sample;
//get the buffer from appsink
if(isPaused()){
sample = gst_app_sink_pull_preroll (GST_APP_SINK (getSink()));
}else{
sample = gst_app_sink_pull_sample (GST_APP_SINK (getSink()));
}
buffer = gst_sample_get_buffer(sample);
if(buffer){
if(pixels.isAllocated()){
if(prevBuffer) gst_sample_unref (prevBuffer);
gst_buffer_map (buffer, &mapinfo, GST_MAP_READ);
//TODO: stride = mapinfo.size / height;
pixels.setFromExternalPixels(mapinfo.data,pixels.getWidth(),pixels.getHeight(),pixels.getNumChannels());
prevBuffer = sample;
bHavePixelsChanged=true;
gst_buffer_unmap(buffer,&mapinfo);
}
}
}
#endif
}else{
void ofGstVideoUtils::update(){
if (isLoaded()){
if(!isFrameByFrame()){
ofScopedLock lock(mutex);
bHavePixelsChanged = bBackPixelsChanged;
if (bHavePixelsChanged){
bBackPixelsChanged=false;
swap(pixels,backPixels);
#ifdef OF_USE_GST_GL
if(backTexture.isAllocated()){
frontTexture.getTextureData() = backTexture.getTextureData();
frontTexture.setTextureMinMagFilter(GL_LINEAR,GL_LINEAR);
frontTexture.setTextureWrap(GL_CLAMP_TO_EDGE,GL_CLAMP_TO_EDGE);
}
#endif
if(!copyPixels){
frontBuffer = backBuffer;
}
}
}else{
#if GST_VERSION_MAJOR==0
GstBuffer *buffer;
//get the buffer from appsink
if(isPaused()) buffer = gst_app_sink_pull_preroll (GST_APP_SINK (getSink()));
else buffer = gst_app_sink_pull_buffer (GST_APP_SINK (getSink()));
if(buffer){
if(pixels.isAllocated()){
pixels.setFromExternalPixels(GST_BUFFER_DATA (buffer),pixels.getWidth(),pixels.getHeight(),pixels.getNumChannels());
prevBuffer = shared_ptr<GstBuffer>(buffer,gst_buffer_unref);;
bHavePixelsChanged=true;
}
}
}
#else
GstBuffer * buffer;
GstSample * sample;
//get the buffer from appsink
if(isPaused()){
sample = gst_app_sink_pull_preroll (GST_APP_SINK (getSink()));
}else{
sample = gst_app_sink_pull_sample (GST_APP_SINK (getSink()));
}
buffer = gst_sample_get_buffer(sample);
if(buffer){
if(pixels.isAllocated()){
gst_buffer_map (buffer, &mapinfo, GST_MAP_READ);
//TODO: stride = mapinfo.size / height;
pixels.setFromExternalPixels(mapinfo.data,pixels.getWidth(),pixels.getHeight(),pixels.getNumChannels());
backBuffer = shared_ptr<GstSample>(sample,gst_sample_unref);
bHavePixelsChanged=true;
gst_buffer_unmap(buffer,&mapinfo);
}
}
}
#endif
}else{
void ofGstVideoUtils::update(){
if (isLoaded()){
if(!isFrameByFrame()){
std::unique_lock<std::mutex> lock(mutex);
bHavePixelsChanged = bBackPixelsChanged;
if (bHavePixelsChanged){
bBackPixelsChanged=false;
swap(pixels,backPixels);
#ifdef OF_USE_GST_GL
if(backTexture.isAllocated()){
frontTexture.getTextureData() = backTexture.getTextureData();
frontTexture.setTextureMinMagFilter(GL_LINEAR,GL_LINEAR);
frontTexture.setTextureWrap(GL_CLAMP_TO_EDGE,GL_CLAMP_TO_EDGE);
}
#endif
if(!copyPixels){
frontBuffer = backBuffer;
}
}
}else{
#if GST_VERSION_MAJOR==0
ofLogError() << "frame by frame doesn't work any more in 0.10";
#else
GstBuffer * buffer;
GstSample * sample;
//get the buffer from appsink
if(isPaused()){
sample = gst_app_sink_pull_preroll (GST_APP_SINK (getSink()));
}else{
sample = gst_app_sink_pull_sample (GST_APP_SINK (getSink()));
}
buffer = gst_sample_get_buffer(sample);
if(buffer){
if(pixels.isAllocated()){
gst_buffer_map (buffer, &mapinfo, GST_MAP_READ);
//TODO: stride = mapinfo.size / height;
pixels.setFromExternalPixels(mapinfo.data,pixels.getWidth(),pixels.getHeight(),pixels.getNumChannels());
backBuffer = shared_ptr<GstSample>(sample,gst_sample_unref);
bHavePixelsChanged=true;
gst_buffer_unmap(buffer,&mapinfo);
}
}
#endif
}
}else{
ofLogWarning("ofGstVideoUtils") << "update(): ofGstVideoUtils not loaded";
}
bIsFrameNew = bHavePixelsChanged;
bHavePixelsChanged = false;
}
void ofGstVideoUtils::update(){
if (isLoaded()){
if(!isFrameByFrame()){
mutex.lock();
bHavePixelsChanged = bBackPixelsChanged;
if (bHavePixelsChanged){
bBackPixelsChanged=false;
pixels.swap(backPixels);
if(prevBuffer) gst_buffer_unref (prevBuffer);
prevBuffer = buffer;
}
mutex.unlock();
}else{
GstBuffer *buffer;
//get the buffer from appsink
if(isPaused()) buffer = gst_app_sink_pull_preroll (GST_APP_SINK (getSink()));
else buffer = gst_app_sink_pull_buffer (GST_APP_SINK (getSink()));
if(buffer){
if(pixels.isAllocated()){
if(prevBuffer) gst_buffer_unref (prevBuffer);
//memcpy (pixels.getPixels(), GST_BUFFER_DATA (buffer), size);
pixels.setFromExternalPixels(GST_BUFFER_DATA (buffer),pixels.getWidth(),pixels.getHeight(),pixels.getNumChannels());
prevBuffer = buffer;
bHavePixelsChanged=true;
}
}
}
}else{
ofLog(OF_LOG_WARNING,"ofGstVideoUtils not loaded");
}
bIsFrameNew = bHavePixelsChanged;
bHavePixelsChanged = false;
}
