[Video Player] Support gstreamer dmabuf in video_player #64
Description
Hello.
I have i.MX8MP board and using video_player.
This SoC has a VPU(Video Proccessing Unit) so that it can hardware decode H.264 with gstreamer.
But, 1080p 30fps or 60fps video, the following gst_buffer_extract() is the bottleneck and playback is slow.
(gst_extract_buffer() takes about 60ms.)
gst_video_player.cc:
const uint8_t* GstVideoPlayer::GetFrameBuffer() {
std::shared_lock<std::shared_mutex> lock(mutex_buffer_);
if (!gst_.buffer) {
return nullptr;
}
const uint32_t pixel_bytes = width_ * height_ * 4;
gst_buffer_extract(gst_.buffer, 0, pixels_.get(), pixel_bytes);
return reinterpret_cast<const uint8_t*>(pixels_.get());
}
I think the availability of dmabuf would solve this problem.
Are there any plans to support gstreamer dmabuf in video_player?
(In my environment, gst_is_dmabuf_memory() returns TRUE, so I can use dmabuf.)