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lavc/vaapi_encode: fix p_per_i calculate issue.

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now gop_size <= (max_b_frames + 1) * p_per_i + 1 (IDR frame),
so celing p_per_i = (gop_size - 1 + max_b_frames) / (max_b_frames + 1)

Signed-off-by: Jun Zhao <jun.zhao@intel.com>
Signed-off-by: Leilei <leilei.shang@intel.com>
Signed-off-by: Mark Thompson <sw@jkqxz.net>
This commit is contained in:
Jun Zhao 2017-03-29 17:18:59 +08:00 committed by Mark Thompson
parent 3cbf717425
commit 08087f5462
1 changed files with 1 additions and 1 deletions
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2
libavcodec/vaapi_encode.c
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@ -1433,7 +1433,7 @@ av_cold int ff_vaapi_encode_init(AVCodecContext *avctx)
ctx->output_order = - ctx->output_delay - 1;
// Currently we never generate I frames, only IDR.
ctx->p_per_i = ((avctx->gop_size + avctx->max_b_frames) /
ctx->p_per_i = ((avctx->gop_size - 1 + avctx->max_b_frames) /
(avctx->max_b_frames + 1));
ctx->b_per_p = avctx->max_b_frames;