[FFmpeg-devel] [PATCH v4] avcodec: add av1 VAAPI decoder

[Mark Thompson]

On 02/10/2020 15:28, Fei Wang wrote:
> Example cmdline:
> ffmpeg -hwaccel vaapi -hwaccel_device /dev/dri/renderD128 -v verbose \
> -c:v av1 -i input.ivf -pix_fmt yuv420p -vsync passthrough -f md5     \
> -y out.md5
> 
> Signed-off-by: Fei Wang <fei.w.wang at intel.com>
> ---
>   Changelog                 |   1 +
>   configure                 |   3 +
>   libavcodec/Makefile       |   1 +
>   libavcodec/av1dec.c       |  18 ++-
>   libavcodec/hwaccels.h     |   1 +
>   libavcodec/vaapi_av1.c    | 274 ++++++++++++++++++++++++++++++++++++++
>   libavcodec/vaapi_decode.c |   6 +
>   libavcodec/version.h      |   2 +-
>   8 files changed, 304 insertions(+), 2 deletions(-)
>   create mode 100644 libavcodec/vaapi_av1.c

I think this is ok, but I can't test it myself.  Can you rebase against the recent changes in av1dec and retest that it is still good?

A kindof-related question: how does the selection of reference frames for skip modes work?  VAAPI isn't being given the SkipModeFrame array, and it doesn't appear to have the order hints to be able to work out which frames it should be using itself.

Thanks,

- Mark