[Mesa-dev] [PATCH 10/11] st/va: add preset values for VAAPI encode

[Boyuan Zhang]

Add some hardcoded values hardware needs mainly for rate control purpose. With previously hardcoded values for OMX, the rate control result is not correct. This change fixed the rate control result by setting correct values for Vaapi.

Signed-off-by: Boyuan Zhang <boyuan.zhang at amd.com>
---
 src/gallium/state_trackers/va/picture.c | 36 +++++++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)

diff --git a/src/gallium/state_trackers/va/picture.c b/src/gallium/state_trackers/va/picture.c
index 12b3cd1..343afd7 100644
--- a/src/gallium/state_trackers/va/picture.c
+++ b/src/gallium/state_trackers/va/picture.c
@@ -95,6 +95,41 @@ vlVaGetReferenceFrame(vlVaDriver *drv, VASurfaceID surface_id,
       *ref_frame = NULL;
 }
 
+static void
+getEncParamPreset(vlVaContext *context)
+{
+   //motion estimation preset
+   context->desc.h264enc.motion_est.motion_est_quarter_pixel = 0x00000001;
+   context->desc.h264enc.motion_est.lsmvert = 0x00000002;
+   context->desc.h264enc.motion_est.enc_disable_sub_mode = 0x00000078;
+   context->desc.h264enc.motion_est.enc_en_ime_overw_dis_subm = 0x00000001;
+   context->desc.h264enc.motion_est.enc_ime_overw_dis_subm_no = 0x00000001;
+   context->desc.h264enc.motion_est.enc_ime2_search_range_x = 0x00000004;
+   context->desc.h264enc.motion_est.enc_ime2_search_range_y = 0x00000004;
+
+   //pic control preset
+   context->desc.h264enc.pic_ctrl.enc_cabac_enable = 0x00000001;
+   context->desc.h264enc.pic_ctrl.enc_constraint_set_flags = 0x00000040;
+
+   //rate control
+   context->desc.h264enc.rate_ctrl.vbv_buffer_size = 20000000;
+   if (context->desc.h264enc.rate_ctrl.frame_rate_num == 0) {
+      context->desc.h264enc.rate_ctrl.frame_rate_num = 30;
+      context->desc.h264enc.rate_ctrl.frame_rate_den = 1;
+   }
+   context->desc.h264enc.rate_ctrl.vbv_buf_lv = 48;
+   context->desc.h264enc.rate_ctrl.fill_data_enable = 1;
+   context->desc.h264enc.rate_ctrl.enforce_hrd = 1;
+   context->desc.h264enc.enable_vui = false;
+   context->desc.h264enc.rate_ctrl.target_bits_picture =
+	   context->desc.h264enc.rate_ctrl.target_bitrate / context->desc.h264enc.rate_ctrl.frame_rate_num;
+   context->desc.h264enc.rate_ctrl.peak_bits_picture_integer =
+	   context->desc.h264enc.rate_ctrl.peak_bitrate / context->desc.h264enc.rate_ctrl.frame_rate_num;
+   context->desc.h264enc.rate_ctrl.peak_bits_picture_fraction = 0;
+
+   context->desc.h264enc.ref_pic_mode = 0x00000201;
+}
+
 static VAStatus
 handlePictureParameterBuffer(vlVaDriver *drv, vlVaContext *context, vlVaBuffer *buf)
 {
@@ -513,6 +548,7 @@ vlVaEndPicture(VADriverContextP ctx, VAContextID context_id)
 
    if (context->decoder->entrypoint == PIPE_VIDEO_ENTRYPOINT_ENCODE) {
       coded_buf = context->coded_buf;
+      getEncParamPreset(context);
       context->decoder->begin_frame(context->decoder, context->target, &context->desc.base);
       context->decoder->encode_bitstream(context->decoder, context->target,
                                          coded_buf->derived_surface.resource, &feedback);
-- 
2.7.4