diff options
author | Kostya Shishkov <kostya.shishkov@gmail.com> | 2008-11-07 10:18:22 +0300 |
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committer | Kostya Shishkov <kostya.shishkov@gmail.com> | 2008-11-07 10:18:22 +0300 |
commit | e1223112615cfc35779b9d0380332ed7c4085bb0 (patch) | |
tree | 2e38c40032978f611b6b6c9db8e791bc1b0fe52c /libavcodec/rv34.c | |
parent | e3b07e1a74abea3534f6e922d364c70c47521f2c (diff) |
Calculating an additional MV-based deblocking pattern is the same
for both RV3 and RV4, so move it into common code.
Originally committed as revision 15786 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/rv34.c')
-rw-r--r-- | libavcodec/rv34.c | 38 |
1 files changed, 36 insertions, 2 deletions
diff --git a/libavcodec/rv34.c b/libavcodec/rv34.c index e21d224428..cee84a0acd 100644 --- a/libavcodec/rv34.c +++ b/libavcodec/rv34.c @@ -1067,6 +1067,38 @@ static void rv34_apply_differences(RV34DecContext *r, int cbp) s->dsp.add_pixels_clamped(s->block[5], s->dest[2], s->uvlinesize); } +static int is_mv_diff_gt_3(int16_t (*motion_val)[2], int step) +{ + int d; + d = motion_val[0][0] - motion_val[-step][0]; + if(d < -3 || d > 3) + return 1; + d = motion_val[0][1] - motion_val[-step][1]; + if(d < -3 || d > 3) + return 1; + return 0; +} + +static int rv34_set_deblock_coef(RV34DecContext *r) +{ + MpegEncContext *s = &r->s; + int mvmask = 0, i, j; + int midx = s->mb_x * 2 + s->mb_y * 2 * s->b8_stride; + int16_t (*motion_val)[2] = s->current_picture_ptr->motion_val[0][midx]; + if(s->pict_type == FF_I_TYPE) + return 0; + for(j = 0; j < 16; j += 8){ + for(i = 0; i < 2; i++){ + if(is_mv_diff_gt_3(motion_val + i, 1)) + mvmask |= 0x11 << (j + i*2); + if(is_mv_diff_gt_3(motion_val + i, s->b8_stride)) + mvmask |= 0x03 << (j + i*2); + } + motion_val += s->b8_stride; + } + return mvmask; +} + static int rv34_decode_macroblock(RV34DecContext *r, int8_t *intra_types) { MpegEncContext *s = &r->s; @@ -1097,8 +1129,10 @@ static int rv34_decode_macroblock(RV34DecContext *r, int8_t *intra_types) cbp = cbp2 = rv34_decode_mb_header(r, intra_types); r->cbp_luma [s->mb_x + s->mb_y * s->mb_stride] = cbp; r->cbp_chroma[s->mb_x + s->mb_y * s->mb_stride] = cbp >> 16; - if(r->set_deblock_coef) - r->deblock_coefs[s->mb_x + s->mb_y * s->mb_stride] = r->set_deblock_coef(r); + if(s->pict_type == FF_I_TYPE) + r->deblock_coefs[mb_pos] = 0; + else + r->deblock_coefs[mb_pos] = rv34_set_deblock_coef(r); s->current_picture.qscale_table[s->mb_x + s->mb_y * s->mb_stride] = s->qscale; if(cbp == -1) |