From: Boyuan Zhang <boyuan.zh...@amd.com>
This patch enables variable bit-rate for vaapi encoding. According to va.h,
target bit-rate equals to maximum bit-rate multiplies by target_percentage.
Signed-off-by: Boyuan Zhang <boyuan.zh...@amd.com>
---
src/gallium/state_trackers/va/config.c | 2 +-
src/gallium/state_trackers/va/picture.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/src/gallium/state_trackers/va/config.c
b/src/gallium/state_trackers/va/config.c
index 84bf913..4052316 100644
--- a/src/gallium/state_trackers/va/config.c
+++ b/src/gallium/state_trackers/va/config.c
@@ -120,7 +120,7 @@ vlVaGetConfigAttributes(VADriverContextP ctx, VAProfile
profile, VAEntrypoint en
value = VA_RT_FORMAT_YUV420;
break;
case VAConfigAttribRateControl:
- value = VA_RC_CQP | VA_RC_CBR;
+ value = VA_RC_CQP | VA_RC_CBR | VA_RC_VBR;
break;
default:
value = VA_ATTRIB_NOT_SUPPORTED;
diff --git a/src/gallium/state_trackers/va/picture.c
b/src/gallium/state_trackers/va/picture.c
index a283e83..7f3d96d 100644
--- a/src/gallium/state_trackers/va/picture.c
+++ b/src/gallium/state_trackers/va/picture.c
@@ -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;
+ context->desc.h264enc.rate_ctrl.target_bitrate = rc->bits_per_second *
rc->target_percentage / 100;
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);
--
2.7.4
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