diff options
| author | Zhao Yakui <yakui.zhao@intel.com> | 2013-08-12 15:13:24 +0800 |
|---|---|---|
| committer | Xiang, Haihao <haihao.xiang@intel.com> | 2013-09-06 15:33:35 +0800 |
| commit | 5ae18f29106ffde1004b721013ebb81f7a273690 (patch) | |
| tree | e4df0dbfa794df074b9800f08871cb4aca43097e | |
| parent | 7264aeb6c682b0bc352303befdcec536cca02fec (diff) | |
Optimize quantization rounding precision for MPEG2 encoding on haswell
Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
(cherry picked from commit 24d8bf31c8aeb326bc8b33c1ac9700ec1d169666)
| -rw-r--r-- | src/gen75_mfc.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/src/gen75_mfc.c b/src/gen75_mfc.c index e4cdca5..b3b6f88 100644 --- a/src/gen75_mfc.c +++ b/src/gen75_mfc.c @@ -1780,9 +1780,11 @@ gen75_mfc_mpeg2_pic_state(VADriverContextP ctx, VAEncPictureParameterBufferMPEG2 *pic_param; int width_in_mbs = (mfc_context->surface_state.width + 15) / 16; int height_in_mbs = (mfc_context->surface_state.height + 15) / 16; + VAEncSliceParameterBufferMPEG2 *slice_param = NULL; assert(encode_state->pic_param_ext && encode_state->pic_param_ext->buffer); pic_param = (VAEncPictureParameterBufferMPEG2 *)encode_state->pic_param_ext->buffer; + slice_param = (VAEncSliceParameterBufferMPEG2 *)encode_state->slice_params_ext[0]->buffer; BEGIN_BCS_BATCH(batch, 13); OUT_BCS_BATCH(batch, MFX_MPEG2_PIC_STATE | (13 - 2)); @@ -1807,7 +1809,11 @@ gen75_mfc_mpeg2_pic_state(VADriverContextP ctx, 1 << 31 | /* slice concealment */ (height_in_mbs - 1) << 16 | (width_in_mbs - 1)); - OUT_BCS_BATCH(batch, 0); + if (slice_param && slice_param->quantiser_scale_code >= 14) + OUT_BCS_BATCH(batch, (3 << 1) | (1 << 4) | (5 << 8) | (1 << 12)); + else + OUT_BCS_BATCH(batch, 0); + OUT_BCS_BATCH(batch, 0); OUT_BCS_BATCH(batch, 0xFFF << 16 | /* InterMBMaxSize */ |