* [FFmpeg-devel] [PATCH v2] lavc/qsvenc_hevc: use open GOP by default
@ 2022-10-07 2:49 Xiang, Haihao
2022-10-09 1:43 ` Xiang, Haihao
0 siblings, 1 reply; 2+ messages in thread
From: Xiang, Haihao @ 2022-10-07 2:49 UTC (permalink / raw)
To: ffmpeg-devel; +Cc: Haihao Xiang
From: Haihao Xiang <haihao.xiang@intel.com>
HEVC spec has CRA frame which allows random access with open GOP, hence
it can achieve higher compression efficiency.
Signed-off-by: Haihao Xiang <haihao.xiang@intel.com>
---
libavcodec/qsvenc_hevc.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/libavcodec/qsvenc_hevc.c b/libavcodec/qsvenc_hevc.c
index a5bf915954..9bbedc3e28 100644
--- a/libavcodec/qsvenc_hevc.c
+++ b/libavcodec/qsvenc_hevc.c
@@ -294,7 +294,6 @@ static const FFCodecDefault qsv_enc_defaults[] = {
{ "qmin", "-1" },
{ "qmax", "-1" },
{ "trellis", "-1" },
- { "flags", "+cgop" },
{ NULL },
};
--
2.17.1
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^ permalink raw reply [flat|nested] 2+ messages in thread* Re: [FFmpeg-devel] [PATCH v2] lavc/qsvenc_hevc: use open GOP by default
2022-10-07 2:49 [FFmpeg-devel] [PATCH v2] lavc/qsvenc_hevc: use open GOP by default Xiang, Haihao
@ 2022-10-09 1:43 ` Xiang, Haihao
0 siblings, 0 replies; 2+ messages in thread
From: Xiang, Haihao @ 2022-10-09 1:43 UTC (permalink / raw)
To: ffmpeg-devel
On Fri, 2022-10-07 at 10:49 +0800, Xiang, Haihao wrote:
> From: Haihao Xiang <haihao.xiang@intel.com>
>
> HEVC spec has CRA frame which allows random access with open GOP, hence
> it can achieve higher compression efficiency.
>
> Signed-off-by: Haihao Xiang <haihao.xiang@intel.com>
> ---
> libavcodec/qsvenc_hevc.c | 1 -
> 1 file changed, 1 deletion(-)
>
> diff --git a/libavcodec/qsvenc_hevc.c b/libavcodec/qsvenc_hevc.c
> index a5bf915954..9bbedc3e28 100644
> --- a/libavcodec/qsvenc_hevc.c
> +++ b/libavcodec/qsvenc_hevc.c
> @@ -294,7 +294,6 @@ static const FFCodecDefault qsv_enc_defaults[] = {
> { "qmin", "-1" },
> { "qmax", "-1" },
> { "trellis", "-1" },
> - { "flags", "+cgop" },
> { NULL },
> };
>
Will apply,
-Haihao
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^ permalink raw reply [flat|nested] 2+ messages in thread
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2022-10-07 2:49 [FFmpeg-devel] [PATCH v2] lavc/qsvenc_hevc: use open GOP by default Xiang, Haihao
2022-10-09 1:43 ` Xiang, Haihao
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