FFMPEG build with NVDEC or CUVID for HW Accelerated decoding

I have learn’t that latest FFMPEG 4 supports HW acceleration which is compatible for Maxwell arch GPUs like on Jetson Nano. However, I have found official tutorial from NVIDIA for compiling FFMPEG from source with NVENC enabled. But I haven’t found any guide for NVDEC/CUVID.

adding --enable-nvdec returns unrecognized option during ./configure. Any help is appreciated.

Edit: I don’t think hwaccel is supported at all with ffmpeg on Nano.

I’ve seen a demo from Nvidia Deepstream to run 8 channel 1080p video at 30fps. I wonder how that could become possible without hardware acceleration!!
Maybe TX1 has its own video decoder/encoder hardware elements. They aren’t available on ffmpeg but You can leverage it via “Multimedia API” mentioned in https://developer.nvidia.com/embedded/jetpack .

Without ffmpeg. I can’t find the thread (I have been searching) but I recall a mod stating that ffmpeg hardware decode isn’t supported and the 8 channel level of performance is only with their MMAPI. Gstreamer has accelerated decode and encode on nano as well.

ffmpeg with hardware acceleration is not supported on TX2, Jetson Xavier and Jetson Nano.
It is supported on desktop GPUs.