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
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);
--
2.17.1
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