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st/va Avoid VBR bitrate calculation overflow v2

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VBR bitrate calc needs 64 bits at high rates.

v2: use float.

Signed-off-by: Andy Furniss <adf.lists@gmail.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Cc: mesa-stable@lists.freedesktop.org
This commit is contained in:
Andy Furniss 2016-09-26 10:44:35 +01:00 • committed by Christian König
parent a543f231d7
commit a599302227
1 changed files with 1 additions and 1 deletions
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2
src/gallium/state_trackers/va/picture.c
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@ -322,7 +322,7 @@ handleVAEncMiscParameterTypeRateControl(vlVaContext *context, VAEncMiscParameter
PIPE_H264_ENC_RATE_CONTROL_METHOD_CONSTANT)
context->desc.h264enc.rate_ctrl.target_bitrate = rc->bits_per_second;
else
context->desc.h264enc.rate_ctrl.target_bitrate = rc->bits_per_second * rc->target_percentage / 100;
context->desc.h264enc.rate_ctrl.target_bitrate = rc->bits_per_second * (rc->target_percentage / 100.0);
context->desc.h264enc.rate_ctrl.peak_bitrate = rc->bits_per_second;
if (context->desc.h264enc.rate_ctrl.target_bitrate < 2000000)
context->desc.h264enc.rate_ctrl.vbv_buffer_size = MIN2((context->desc.h264enc.rate_ctrl.target_bitrate * 2.75), 2000000);