On Fri, Dec 24, 2021 at 07:32:28AM +0000, Xiang, Haihao wrote:
> On Mon, 2021-04-12 at 09:47 +0800, Zhang yuankun wrote:
> > This patch will fix following command:
> > ffmpeg -hwaccel vaapi -hwaccel_output_format vaapi -i input.264 \
> > -vf 'scale_vaapi=w=7680:h=4096' -c:v vp9_vaapi output.ivf
> >
> > Max width of a vp9 tile is 4096. If the source frame > 4096, we need split
> > to
> > multiple tiles.
> >
> > Signed-off-by: Zhang yuankun <yuankunx.zh...@intel.com>
> > ---
> > libavcodec/vaapi_encode_vp9.c | 8 ++++++++
> > 1 file changed, 8 insertions(+)
> >
> > diff --git a/libavcodec/vaapi_encode_vp9.c b/libavcodec/vaapi_encode_vp9.c
> > index 0e1c52c92a..ed45cd6d03 100644
> > --- a/libavcodec/vaapi_encode_vp9.c
> > +++ b/libavcodec/vaapi_encode_vp9.c
> > @@ -31,6 +31,7 @@
> >
> > #define VP9_MAX_QUANT 255
> >
> > +#define VP9_MAX_TILE_WIDTH 4096
> >
> > typedef struct VAAPIEncodeVP9Picture {
> > int slot;
> > @@ -82,10 +83,17 @@ static int
> > vaapi_encode_vp9_init_picture_params(AVCodecContext *avctx,
> > VAAPIEncodeVP9Picture *hpic = pic->priv_data;
> > VAEncPictureParameterBufferVP9 *vpic = pic->codec_picture_params;
> > int i;
> > + int num_tile_columns;
> >
> > vpic->reconstructed_frame = pic->recon_surface;
> > vpic->coded_buf = pic->output_buffer;
> >
> > + // Maximum width of a tile in units of superblocks is
> > MAX_TILE_WIDTH_B64(64)
> > + // So the number of tile columns is related to the width of the
> > picture.
> > + // We set the minimum possible number for num_tile_columns as defualt
defualt -> default
> > value.
> > + num_tile_columns = (vpic->frame_width_src + VP9_MAX_TILE_WIDTH - 1) /
> > VP9_MAX_TILE_WIDTH;
> > + vpic->log2_tile_columns = num_tile_columns == 1 ? 0 :
> > av_log2(num_tile_columns - 1) + 1;
> > +
> > switch (pic->type) {
> > case PICTURE_TYPE_IDR:
> > av_assert0(pic->nb_refs == 0);
>
> LGTM, will apply
>
> -Haihao
>
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--
Thanks,
Limin Wang
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