Quoting James Almer (2022-07-18 20:18:16)
>
>
> On 7/18/2022 3:15 PM, Anton Khirnov wrote:
> > Quoting James Almer (2022-07-18 14:23:58)
> >> On 7/18/2022 4:12 AM, Anton Khirnov wrote:
> >>> ---
> >>> libavcodec/libx264.c | 52 +++++++++++++++++++++++++++++++++++++++++++-
> >>> 1 file changed, 51 insertions(+), 1 deletion(-)
> >>>
> >>> diff --git a/libavcodec/libx264.c b/libavcodec/libx264.c
> >>> index 98ec030865..5e360682e6 100644
> >>> --- a/libavcodec/libx264.c
> >>> +++ b/libavcodec/libx264.c
> >>> @@ -311,6 +311,25 @@ static void free_picture(AVCodecContext *ctx)
> >>> pic->extra_sei.num_payloads = 0;
> >>> }
> >>>
> >>> +static enum AVPixelFormat csp_to_pixfmt(int csp)
> >>> +{
> >>> + switch (csp) {
> >>> +#ifdef X264_CSP_I400
> >>> + case X264_CSP_I400: return AV_PIX_FMT_GRAY8;
> >>> + case X264_CSP_I400 | X264_CSP_HIGH_DEPTH: return AV_PIX_FMT_GRAY10;
> >>> +#endif
> >>> + case X264_CSP_I420: return
> >>> AV_PIX_FMT_YUV420P;
> >>> + case X264_CSP_I420 | X264_CSP_HIGH_DEPTH: return
> >>> AV_PIX_FMT_YUV420P10;
> >>> + case X264_CSP_I422: return
> >>> AV_PIX_FMT_YUV422P;
> >>> + case X264_CSP_I422 | X264_CSP_HIGH_DEPTH: return
> >>> AV_PIX_FMT_YUV422P10;
> >>> + case X264_CSP_I444: return
> >>> AV_PIX_FMT_YUV444P;
> >>> + case X264_CSP_I444 | X264_CSP_HIGH_DEPTH: return
> >>> AV_PIX_FMT_YUV444P10;
> >>
> >> We're still supporting old x264 versions, so you should add some
> >> considerations for 9 bit pixfmts. On X264_BUILD < 153, just check the
> >> value of x264_bit_depth.
> >
> > Is there much point in continuing to support 5.5 year old x264? We could
> > drop a lot of ugliness, including the abominable X264_init_static().
>
> Afaik we tend to support what's shipped with not yet EOL'd big distros
> like Debian and Ubuntu. I assume Michael's Ubuntu setup is one of those,
> and it has a libx264 without X264_CSP_I400, for example.
Debian oldstable has libx264 155 at least.
--
Anton Khirnov
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