Hi James,
On Wed, Nov 18, 2020 at 1:13 PM James Zern <jzern-at-google....@ffmpeg.org>
wrote:
> Hi,
>
> On Mon, Nov 16, 2020 at 2:36 PM Wonkap Jang
> <wonkap-at-google....@ffmpeg.org> 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.
> > ---
> > libavcodec/libvpxenc.c | 77 ++++++++++++++++++++++++++++++++++++++++++
>
> The documentation could use an update too. Maybe some of the earlier
> per-frame metadata was missed.
>
> > 1 file changed, 77 insertions(+)
> >
> > diff --git a/libavcodec/libvpxenc.c b/libavcodec/libvpxenc.c
> > index a7c76eb835..dbe399bf72 100644
> > --- a/libavcodec/libvpxenc.c
> > +++ b/libavcodec/libvpxenc.c
> > @@ -125,6 +125,11 @@ typedef struct VPxEncoderContext {
> > * encounter a frame with ROI side data.
> > */
> > int roi_warned;
> > +
> > +#if (VPX_ENCODER_ABI_VERSION >= 12) && CONFIG_LIBVPX_VP9_ENCODER
> > + vpx_svc_ref_frame_config_t ref_frame_config;
> > + AVDictionary *vpx_ref_frame_config;
> > +#endif
> > } VPxContext;
> >
> > /** String mappings for enum vp8e_enc_control_id */
> > @@ -152,6 +157,7 @@ static const char *const ctlidstr[] = {
> > [VP9E_SET_SVC_LAYER_ID] = "VP9E_SET_SVC_LAYER_ID",
> > #if VPX_ENCODER_ABI_VERSION >= 12
>
> This check isn't sufficient since the vpx_svc_ref_frame_config_t
> struct was changed a few times after this point.
>
> > [VP9E_SET_SVC_PARAMETERS] = "VP9E_SET_SVC_PARAMETERS",
> > + [VP9E_SET_SVC_REF_FRAME_CONFIG] =
> "VP9E_SET_SVC_REF_FRAME_CONFIG",
> > #endif
> > [VP9E_SET_SVC] = "VP9E_SET_SVC",
> > #if VPX_ENCODER_ABI_VERSION >= 11
> > @@ -394,6 +400,18 @@ static void vp8_ts_parse_int_array(int *dest, char
> *value, size_t value_len, int
> > }
> > }
> >
> > +static void vp8_ts_parse_int64_array(int64_t *dest, char *value, size_t
> value_len, int max_entries)
> > +{
> > + int dest_idx = 0;
> > + char *saveptr = NULL;
> > + char *token = av_strtok(value, ",", &saveptr);
> > +
> > + while (token && dest_idx < max_entries) {
> > + dest[dest_idx++] = strtoul(token, NULL, 10);
>
> int64 seems like it was overkill in the api, but you probably want
> strtoull here.
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I tried to figure out the right version number, but it seems that the
version number was not bumped when the change was made.
I tried to find a new #define that I could use, but cannot seem to find
one. Is there one that you could suggest I use? Or perhaps a way to find
one?
Need help.
Thank you,
Wonkap
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