On Fri, Dec 16, 2016 at 10:21:25AM +0800, Jun Zhao wrote:
> vaapi_encode_h264.c | 10 ++++++++++
> 1 file changed, 10 insertions(+)
> 79dbe8e5eaf06d39210c325486b96eef1f4d575d
> 0001-lavc-vaapi_encode_h264-disable-B-frame-in-baseline-p.patch
> From a4b410e02ac4864c7d82b15474a65ed42a84da6a Mon Sep 17 00:00:00 2001
> From: Jun Zhao <jun.z...@intel.com>
> Date: Fri, 16 Dec 2016 09:49:57 +0800
> Subject: [PATCH] lavc/vaapi_encode_h264: disable B frame in baseline profile.
>
> disable B frames when usd baseline/constrined baseline profile,
> it's base on H.264 spec Annex A.2.1.
>
> Signed-off-by: Jun Zhao <jun.z...@intel.com>
> Signed-off-by: Yi A Wang <yi.a.w...@intel.com>
> ---
> libavcodec/vaapi_encode_h264.c | 10 ++++++++++
> 1 file changed, 10 insertions(+)
>
> diff --git a/libavcodec/vaapi_encode_h264.c b/libavcodec/vaapi_encode_h264.c
> index 69cc483..075f800 100644
> --- a/libavcodec/vaapi_encode_h264.c
> +++ b/libavcodec/vaapi_encode_h264.c
> @@ -1190,9 +1190,19 @@ static av_cold int
> vaapi_encode_h264_init(AVCodecContext *avctx)
> switch (avctx->profile) {
> case FF_PROFILE_H264_CONSTRAINED_BASELINE:
> ctx->va_profile = VAProfileH264ConstrainedBaseline;
> + if (avctx->max_b_frames != 0) {
> + avctx->max_b_frames = 0;
> + av_log(avctx, AV_LOG_WARNING, "H.264 constrained baseline "
> + "profile don't support encode B frame.\n");
> + }
> break;
> case FF_PROFILE_H264_BASELINE:
> ctx->va_profile = VAProfileH264Baseline;
> + if (avctx->max_b_frames != 0) {
> + avctx->max_b_frames = 0;
> + av_log(avctx, AV_LOG_WARNING, "H.264 baseline "
> + "profile don't support encode B frame.\n");the english grammer sounds wrong [...] -- Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB Breaking DRM is a little like attempting to break through a door even though the window is wide open and the only thing in the house is a bunch of things you dont want and which you would get tomorrow for free anyway
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