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decoder: vc1: Rounding control handling for VC1 simple and Main profile

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Added rounding control handling for VC1 simple and Main profile
based on VC1 standard spec: section 8.3.7

https://bugzilla.gnome.org/show_bug.cgi?id=743958

Signed-off-by: Lim Siew Hoon <siew.hoon.lim@intel.com>
Signed-off-by: Sreerenj Balachandran <sreerenj.balachandran@intel.com>
This commit is contained in:
Lim Siew Hoon 2015-02-10 11:40:16 +02:00 committed by Sreerenj Balachandran
parent 004968f506
commit 6edb173486
1 changed files with 12 additions and 1 deletions
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13
gst-libs/gst/vaapi/gstvaapidecoder_vc1.c
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@ -63,6 +63,7 @@ struct _GstVaapiDecoderVC1Private {
GstVaapiDpb *dpb; GstVaapiDpb *dpb;
gint32 next_poc; gint32 next_poc;
guint8 *rbdu_buffer; guint8 *rbdu_buffer;
guint8 rndctrl;
guint rbdu_buffer_size; guint rbdu_buffer_size;
guint is_opened : 1; guint is_opened : 1;
guint is_first_field : 1; guint is_first_field : 1;
@ -173,6 +174,7 @@ gst_vaapi_decoder_vc1_create(GstVaapiDecoder *base_decoder)
GstVaapiDecoderVC1Private * const priv = &decoder->priv; GstVaapiDecoderVC1Private * const priv = &decoder->priv;
priv->profile = (GstVaapiProfile)0; priv->profile = (GstVaapiProfile)0;
priv->rndctrl = 0;
return TRUE; return TRUE;
} }
@ -668,7 +670,6 @@ fill_picture_structc(GstVaapiDecoderVC1 *decoder, GstVaapiPicture *picture)
pic_param->cbp_table = pic->cbptab; pic_param->cbp_table = pic->cbptab;
pic_param->mb_mode_table = 0; /* XXX: interlaced frame */ pic_param->mb_mode_table = 0; /* XXX: interlaced frame */
pic_param->range_reduction_frame = pic->rangeredfrm; pic_param->range_reduction_frame = pic->rangeredfrm;
pic_param->rounding_control = 0; /* advanced profile only */
pic_param->post_processing = 0; /* advanced profile only */ pic_param->post_processing = 0; /* advanced profile only */
pic_param->picture_resolution_index = pic->respic; pic_param->picture_resolution_index = pic->respic;
pic_param->luma_scale = pic->lumscale; pic_param->luma_scale = pic->lumscale;
@ -686,6 +687,16 @@ fill_picture_structc(GstVaapiDecoderVC1 *decoder, GstVaapiPicture *picture)
pic_param->transform_fields.bits.mb_level_transform_type_flag = pic->ttmbf; pic_param->transform_fields.bits.mb_level_transform_type_flag = pic->ttmbf;
pic_param->transform_fields.bits.frame_level_transform_type = pic->ttfrm; pic_param->transform_fields.bits.frame_level_transform_type = pic->ttfrm;
pic_param->transform_fields.bits.transform_ac_codingset_idx2 = pic->transacfrm2; pic_param->transform_fields.bits.transform_ac_codingset_idx2 = pic->transacfrm2;
/* Refer to 8.3.7 Rounding control for Simple and Main Profile */
if (frame_hdr->ptype == GST_VC1_PICTURE_TYPE_I ||
frame_hdr->ptype == GST_VC1_PICTURE_TYPE_BI)
priv->rndctrl = 1;
else if (frame_hdr->ptype == GST_VC1_PICTURE_TYPE_P)
priv->rndctrl ^= 1;
pic_param->rounding_control = priv->rndctrl;
return TRUE; return TRUE;
} }