[FFmpeg-devel] [PATCH] ffmpeg:Accelerated hardware decode support on Jetson

[Philip Langdale]

On Mon, 1 Jun 2020 09:50:56 +0000
Amit Pandya <apandya at nvidia.com> wrote:

> Hi all,
> 
> This patch can support hardware-accelerated decode in ffmpeg on
> Jetson platforms.

Hi Amit,

I appreciate you sending this in. People have asked about Jetson
support a few times.

Is there any plan to enable the normal nvdec/nvenc APIs on jetson?
There is support on 'normal' ARM systems.

More specifically to this change, we already have a v4l2m2m driver. Why
is this completely separate? Can it share code? Can it be written to
just conditionalise the parts that are different? What are those parts?

> ffmpeg application can use accelerated decode to read video files in
> the following elementary/container formats and dump them in YUV 420
> format: H.264, H.265, VP8, VP9. MPEG2, MPEG4 (NOTE: The ffmpeg
> package does not support MPEG4 container files).

What is the problem with mpeg4 containers? Is this the annex b thing?
if so, you need to enable the bitstream filter.

--phil