Can TX2NX decode 2 4k60 H265 stream and composite them in a screen using drm. I see the datasheet it can decode 2 4k60 h265 stream.
For doing composite it uses hardware converter and we try to run the command and can achieve 60fps:
gst-launch-1.0 -v nvcompositor sink_0::xpos=0 sink_0::ypos=0 sink_0::width=1920 sink_0::height=2160 sink_0::xpos=1920 sink_0::ypos=0 sink_1::width=1920 sink_1::height=2160 name=cp ! fpsdisplaysink text-overlay=0 video-sink=fakesink sync=0 filesrc location= bbb_sunflower_2160p_60fps_normal.mp4 ! qtdemux ! h264parse ! nvv4l2decoder ! nvvidconv ! 'video/x-raw(memory:NVMM),format=RGBA' ! cp. filesrc location= bbb_sunflower_2160p_60fps_normal.mp4 ! qtdemux ! h264parse ! nvv4l2decoder ! nvvidconv ! 'video/x-raw(memory:NVMM),format=RGBA' ! cp.
The output resolution of nvcompositor plugin is 3840x2160 and in this case it can achieve 60fps. You should see similar performance by calling NvBufferComposite() in jetson_multimedia_api.
And please refer to this post to run hardware converter at max clock:
Camera's frame rate unstable - #24 by DaneLLL
I see that composite is OK.
Can it decode 2 4k60 YUV444 at the same time.? I see the datasheet 2 4k60, but not say YUV444 or YUV420
The datasheet is the capability of decoding compressed YUV420. For decoding compressed YUV44, it is not able to achieve 2x 4Kp60.
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