[FFmpeg-devel] [PATCH v3] avcodec/libvpxenc: add a way to set VP9E_SET_SVC_REF_FRAME_CONFIG

[James Zern]

On Tue, Dec 15, 2020 at 9:24 AM Wonkap Jang <wonkap at google.com> wrote:
>
> Hi James
>
> On Tue, Dec 15, 2020 at 9:18 AM Wonkap Jang <wonkap at google.com> wrote:
>>
>> In order to fine-control referencing schemes in VP9 encoding, there
>> is a need to use VP9E_SET_SVC_REF_FRAME_CONFIG method. This commit
>> provides a way to use the API through frame metadata.
>> ---
>>  doc/encoders.texi      | 32 +++++++++++++++++
>>  libavcodec/libvpxenc.c | 81 ++++++++++++++++++++++++++++++++++++++++++
>>  2 files changed, 113 insertions(+)
>>
> [...]
> In reply to your comment about using ABI_VERSION for guarding the changes, the reason I used the unrelated   "VPX_CTRL_VP9E_SET_MAX_INTER_BITRATE_PCT" is because the ABI_VERION did not seem to have changed between the last commit that you suggested (v1.7.0-936-g04b3d49ba) to use and the lateset libvpx version. Can you confirm this?
>

I think I may have mentioned, this doesn't have to be precise. You can
just make 1.8.0 the baseline.
Also it looks like you might have some syntax errors in encoders.texi.
If you have the prerequisites, make doc can test the file locally.
https://patchwork.ffmpeg.org/project/ffmpeg/patch/20201215171825.2598712-1-wonkap@google.com/