* [FFmpeg-devel] [PATCH] libavcodec/qsvenc_hevc: Use default value from MSDK to set bf.
@ 2022-06-20 9:06 Wenbin Chen
2022-06-25 2:42 ` Xiang, Haihao
0 siblings, 1 reply; 2+ messages in thread
From: Wenbin Chen @ 2022-06-20 9:06 UTC (permalink / raw)
To: ffmpeg-devel
Change the default value of "bf" for hevc_qsv to -1. 8 isn't the best
choice so let MSDK to decide the number of b frames.
Signed-off-by: Wenbin Chen <wenbin.chen@intel.com>
---
libavcodec/qsvenc_hevc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavcodec/qsvenc_hevc.c b/libavcodec/qsvenc_hevc.c
index da2bf457af..f6027f600b 100644
--- a/libavcodec/qsvenc_hevc.c
+++ b/libavcodec/qsvenc_hevc.c
@@ -287,7 +287,7 @@ static const FFCodecDefault qsv_enc_defaults[] = {
{ "refs", "0" },
// same as the x264 default
{ "g", "248" },
- { "bf", "8" },
+ { "bf", "-1" },
{ "qmin", "-1" },
{ "qmax", "-1" },
{ "trellis", "-1" },
--
2.32.0
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^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [FFmpeg-devel] [PATCH] libavcodec/qsvenc_hevc: Use default value from MSDK to set bf.
2022-06-20 9:06 [FFmpeg-devel] [PATCH] libavcodec/qsvenc_hevc: Use default value from MSDK to set bf Wenbin Chen
@ 2022-06-25 2:42 ` Xiang, Haihao
0 siblings, 0 replies; 2+ messages in thread
From: Xiang, Haihao @ 2022-06-25 2:42 UTC (permalink / raw)
To: ffmpeg-devel
On Mon, 2022-06-20 at 17:06 +0800, Wenbin Chen wrote:
> Change the default value of "bf" for hevc_qsv to -1. 8 isn't the best
> choice so let MSDK to decide the number of b frames.
>
> Signed-off-by: Wenbin Chen <wenbin.chen@intel.com>
> ---
> libavcodec/qsvenc_hevc.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/libavcodec/qsvenc_hevc.c b/libavcodec/qsvenc_hevc.c
> index da2bf457af..f6027f600b 100644
> --- a/libavcodec/qsvenc_hevc.c
> +++ b/libavcodec/qsvenc_hevc.c
> @@ -287,7 +287,7 @@ static const FFCodecDefault qsv_enc_defaults[] = {
> { "refs", "0" },
> // same as the x264 default
> { "g", "248" },
> - { "bf", "8" },
> + { "bf", "-1" },
> { "qmin", "-1" },
> { "qmax", "-1" },
> { "trellis", "-1" },
LGTM, will apply.
-Haihao
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^ permalink raw reply [flat|nested] 2+ messages in thread
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2022-06-20 9:06 [FFmpeg-devel] [PATCH] libavcodec/qsvenc_hevc: Use default value from MSDK to set bf Wenbin Chen
2022-06-25 2:42 ` Xiang, Haihao
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