[FFmpeg-devel] [PATCH V3 1/2] avcodec: add av1 hardware acceleration decoder

[James Almer]

On 9/9/2020 12:39 AM, Fei Wang wrote:
> This av1 decoder is now only used for av1 hardware acceleration
> decoder. Consider it can be extend to a local decoder like hevc
> or vp9 in the future, so define its name as "av1" and put it into
> external libraries codec list.
> 
> Signed-off-by: Fei Wang <fei.w.wang at intel.com>
> ---
> update:
> 1. reuse buffer for tile_group_info.
> 2. set avctx/frame props from sequence and frame header.
> 3. refine ref/unref for s->seq_ref/s->header_ref.
> 4. refine av1_decode_frame to reduce duplicated code.
> 
>  Changelog              |   1 +
>  configure              |   1 +
>  libavcodec/Makefile    |   1 +
>  libavcodec/allcodecs.c |   1 +
>  libavcodec/av1dec.c    | 860 +++++++++++++++++++++++++++++++++++++++++
>  libavcodec/av1dec.h    |  70 ++++
>  libavcodec/version.h   |   2 +-
>  7 files changed, 935 insertions(+), 1 deletion(-)
>  create mode 100644 libavcodec/av1dec.c
>  create mode 100644 libavcodec/av1dec.h

It's mostly good now. A few issues like a pointer leak on failure if
av_realloc_array() fails, but i can fix those before pushing.

I'll let Mark review the vaapi patch and apply this one soon, since
apparently there are other hwaccels implementations waiting for this to
land.