diff options
Diffstat (limited to 'src/gallium/auxiliary/vl')
| -rw-r--r-- | src/gallium/auxiliary/vl/vl_mpeg12_bitstream.c | 31 |
1 files changed, 16 insertions, 15 deletions
diff --git a/src/gallium/auxiliary/vl/vl_mpeg12_bitstream.c b/src/gallium/auxiliary/vl/vl_mpeg12_bitstream.c index 142bcaba080..221ebdd391e 100644 --- a/src/gallium/auxiliary/vl/vl_mpeg12_bitstream.c +++ b/src/gallium/auxiliary/vl/vl_mpeg12_bitstream.c @@ -1313,7 +1313,7 @@ get_mpeg1_non_intra_block(struct vl_mpg12_bs *bs, struct pipe_mpeg12_picture_des static inline void slice_intra_DCT(struct vl_mpg12_bs *bs, struct pipe_mpeg12_picture_desc * picture, int cc, - unsigned x, unsigned y, enum pipe_mpeg12_dct_type coding) + unsigned x, unsigned y, enum pipe_mpeg12_dct_type coding, int dc_dct_pred[3]) { short *dest = bs->ycbcr_buffer[cc]; @@ -1326,12 +1326,12 @@ slice_intra_DCT(struct vl_mpg12_bs *bs, struct pipe_mpeg12_picture_desc * pictur /* Get the intra DC coefficient and inverse quantize it */ if (cc == 0) - picture->dc_dct_pred[0] += get_luma_dc_dct_diff(bs); + dc_dct_pred[0] += get_luma_dc_dct_diff(bs); else - picture->dc_dct_pred[cc] += get_chroma_dc_dct_diff(bs); + dc_dct_pred[cc] += get_chroma_dc_dct_diff(bs); memset(dest, 0, sizeof(int16_t) * 64); - dest[0] = picture->dc_dct_pred[cc] << (3 - picture->intra_dc_precision); + dest[0] = dc_dct_pred[cc] << (3 - picture->intra_dc_precision); if (picture->mpeg1) { if (picture->picture_coding_type != D_TYPE) get_mpeg1_intra_block(bs, picture, dest); @@ -1616,9 +1616,6 @@ slice_init(struct vl_mpg12_bs *bs, struct pipe_mpeg12_picture_desc * picture, in *y = (bs->vlc.buf & 0xFF) - 1; vl_vlc_restart(&bs->vlc); - //TODO conversion to signed format signed format - picture->dc_dct_pred[0] = picture->dc_dct_pred[1] = picture->dc_dct_pred[2] = 0; - picture->quantizer_scale = get_quantizer_scale(bs, picture); /* ignore intra_slice and all the extra data */ @@ -1669,6 +1666,10 @@ decode_slice(struct vl_mpg12_bs *bs, struct pipe_mpeg12_picture_desc *picture) { struct pipe_motionvector mv_fwd, mv_bwd; enum pipe_mpeg12_dct_type dct_type; + + /* predictor for DC coefficients in intra blocks */ + int dc_dct_pred[3] = { 0, 0, 0 }; + int x, y; if (!slice_init(bs, picture, &x, &y)) @@ -1729,12 +1730,12 @@ decode_slice(struct vl_mpg12_bs *bs, struct pipe_mpeg12_picture_desc *picture) mv_bwd.top.weight = mv_bwd.bottom.weight = PIPE_VIDEO_MV_WEIGHT_MIN; // unravaled loop of 6 block(i) calls in macroblock() - slice_intra_DCT(bs, picture, 0, x*2+0, y*2+0, dct_type); - slice_intra_DCT(bs, picture, 0, x*2+1, y*2+0, dct_type); - slice_intra_DCT(bs, picture, 0, x*2+0, y*2+1, dct_type); - slice_intra_DCT(bs, picture, 0, x*2+1, y*2+1, dct_type); - slice_intra_DCT(bs, picture, 1, x, y, dct_type); - slice_intra_DCT(bs, picture, 2, x, y, dct_type); + slice_intra_DCT(bs, picture, 0, x*2+0, y*2+0, dct_type, dc_dct_pred); + slice_intra_DCT(bs, picture, 0, x*2+1, y*2+0, dct_type, dc_dct_pred); + slice_intra_DCT(bs, picture, 0, x*2+0, y*2+1, dct_type, dc_dct_pred); + slice_intra_DCT(bs, picture, 0, x*2+1, y*2+1, dct_type, dc_dct_pred); + slice_intra_DCT(bs, picture, 1, x, y, dct_type, dc_dct_pred); + slice_intra_DCT(bs, picture, 2, x, y, dct_type, dc_dct_pred); if (picture->picture_coding_type == D_TYPE) { vl_vlc_needbits(&bs->vlc); @@ -1805,7 +1806,7 @@ decode_slice(struct vl_mpg12_bs *bs, struct pipe_mpeg12_picture_desc *picture) slice_non_intra_DCT(bs, picture, 2, x, y, dct_type); // cc2 croma } - picture->dc_dct_pred[0] = picture->dc_dct_pred[1] = picture->dc_dct_pred[2] = 0; + dc_dct_pred[0] = dc_dct_pred[1] = dc_dct_pred[2] = 0; } NEXT_MACROBLOCK; @@ -1835,7 +1836,7 @@ decode_slice(struct vl_mpg12_bs *bs, struct pipe_mpeg12_picture_desc *picture) mba_inc += mba->mba; if (mba_inc) { //TODO conversion to signed format signed format - picture->dc_dct_pred[0] = picture->dc_dct_pred[1] = picture->dc_dct_pred[2] = 0; + dc_dct_pred[0] = dc_dct_pred[1] = dc_dct_pred[2] = 0; switch(picture->picture_structure) { case FRAME_PICTURE: |