diff options
author | Mark Thompson <sw@jkqxz.net> | 2016-09-13 02:25:07 +0300 |
---|---|---|
committer | Mark Thompson <sw@jkqxz.net> | 2016-09-14 22:48:36 +0300 |
commit | 3a9662af6c741f8354b1ca97642f78f5c02e2e8f (patch) | |
tree | 4a6017316fcd2b5274989aba2bdc120e452bf683 | |
parent | 7081620aca36e616ea96f71fd71d2703e3abae09 (diff) |
vaapi_h264: Fix HRD bit_rate/cpb_size scaling
There should be an extra offset of 6 on bit_rate_scale and of 4 on
cpb_size_scale which were not accounted for here.
-rw-r--r-- | libavcodec/vaapi_encode_h264.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/libavcodec/vaapi_encode_h264.c b/libavcodec/vaapi_encode_h264.c index 5bd56057cd..9d6ff27a96 100644 --- a/libavcodec/vaapi_encode_h264.c +++ b/libavcodec/vaapi_encode_h264.c @@ -861,14 +861,14 @@ static int vaapi_encode_h264_init_sequence_params(AVCodecContext *avctx) // Try to scale these to a sensible range so that the // golomb encode of the value is not overlong. mseq->bit_rate_scale = - av_clip(av_log2(avctx->bit_rate) - 15, 0, 15); + av_clip_uintp2(av_log2(avctx->bit_rate) - 15 - 6, 4); mseq->bit_rate_value_minus1[0] = - (avctx->bit_rate >> mseq->bit_rate_scale) - 1; + (avctx->bit_rate >> mseq->bit_rate_scale + 6) - 1; mseq->cpb_size_scale = - av_clip(av_log2(priv->hrd_params.hrd.buffer_size) - 15, 0, 15); + av_clip_uintp2(av_log2(priv->hrd_params.hrd.buffer_size) - 15 - 4, 4); mseq->cpb_size_value_minus1[0] = - (priv->hrd_params.hrd.buffer_size >> mseq->cpb_size_scale) - 1; + (priv->hrd_params.hrd.buffer_size >> mseq->cpb_size_scale + 4) - 1; // CBR mode isn't actually available here, despite naming. mseq->cbr_flag[0] = 0; |