[Libva] [PATCH V1][libva-intel-driver] fix the FPS caculation error for HEVC encoder

[Xiang, Haihao]

Applied.

Thanks
Haihao


> Signed-off-by: peng.chen <peng.c.chen at intel.com>
> ---
>  src/gen9_mfc_hevc.c | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/src/gen9_mfc_hevc.c b/src/gen9_mfc_hevc.c
> index c81cb3e..fd976f0 100644
> --- a/src/gen9_mfc_hevc.c
> +++ b/src/gen9_mfc_hevc.c
> @@ -2151,7 +2151,7 @@ intel_hcpe_bit_rate_control_context_init(struct
> encode_state *encode_state,
>      int width_in_mbs = (pSequenceParameter-
> >pic_width_in_luma_samples + ctb_size - 1) / ctb_size;
>      int height_in_mbs = (pSequenceParameter-
> >pic_height_in_luma_samples + ctb_size - 1) / ctb_size;
>  
> -    float fps =  pSequenceParameter->vui_time_scale * 0.5 /
> pSequenceParameter->vui_num_units_in_tick ;
> +    float fps =  pSequenceParameter->vui_time_scale /
> pSequenceParameter->vui_num_units_in_tick ;
>      double bitrate = pSequenceParameter->bits_per_second * 1.0;
>      int inter_mb_size = bitrate * 1.0 / (fps + 4.0) / width_in_mbs /
> height_in_mbs;
>      int intra_mb_size = inter_mb_size * 5.0;
> @@ -2199,7 +2199,7 @@ static void intel_hcpe_brc_init(struct
> encode_state *encode_state,
>      VAEncMiscParameterBuffer* pMiscParamHRD = NULL;
>  
>      double bitrate = pSequenceParameter->bits_per_second * 1.0;
> -    double framerate = (double)pSequenceParameter->vui_time_scale /
> (2 * (double)pSequenceParameter->vui_num_units_in_tick);
> +    double framerate = (double)pSequenceParameter->vui_time_scale /
> (double)pSequenceParameter->vui_num_units_in_tick;
>      int inum = 1, pnum = 0, bnum = 0; /* Gop structure: number of I,
> P, B frames in the Gop. */
>      int intra_period = pSequenceParameter->intra_period;
>      int ip_period = pSequenceParameter->ip_period;
> @@ -2518,7 +2518,7 @@ static bool intel_hcpe_brc_updated_check(struct
> encode_state *encode_state,
>  
>      cur_bitrate = pSequenceParameter->bits_per_second;
>      cur_fps = (double)pSequenceParameter->vui_time_scale /
> -              (2 * (double)pSequenceParameter-
> >vui_num_units_in_tick);
> +              (double)pSequenceParameter->vui_num_units_in_tick;
>  
>      if ((cur_bitrate == mfc_context->brc.saved_bps) &&
>          (cur_fps == mfc_context->brc.saved_fps) &&