extra_hw_frames is needed for some cases.
(eg: qsv decoding + qsv vpp + qsv look_ahead encoding, transcoding
failed if no extra_hw_frames supported:
ffmpeg -hwaccel qsv -c:v h264_qsv -i
bbb_sunflower_1080p_30fps_normal_2000frames.mp4 \
-vf vpp_qsv=w=1280:h=720:extra_hw_frames=100 -v verbose -c:v h264_qsv \
-look_ahead 1 -look_ahead_depth 100 out1.mp4
)
Signed-off-by: Zhong Li <zhong...@intel.com>
---
libavfilter/qsvvpp.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/libavfilter/qsvvpp.c b/libavfilter/qsvvpp.c
index 62b91d6..49cb1ed 100644
--- a/libavfilter/qsvvpp.c
+++ b/libavfilter/qsvvpp.c
@@ -462,6 +462,8 @@ static int init_vpp_session(AVFilterContext *avctx,
QSVVPPContext *s)
out_frames_ctx->height = FFALIGN(outlink->h, 32);
out_frames_ctx->sw_format = s->out_sw_format;
out_frames_ctx->initial_pool_size = 64;
+ if (avctx->extra_hw_frames > 0)
+ out_frames_ctx->initial_pool_size += avctx->extra_hw_frames;
out_frames_hwctx->frame_type = s->out_mem_mode;
ret = av_hwframe_ctx_init(out_frames_ref);
--
2.7.4
_______________________________________________
ffmpeg-devel mailing list
ffmpeg-devel@ffmpeg.org
https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
To unsubscribe, visit link above, or email
ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
