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| author | Luca Barbato <lu_zero@gentoo.org> | 2014-11-24 00:44:46 +0100 |
|---|---|---|
| committer | Vittorio Giovara <vittorio.giovara@gmail.com> | 2014-11-25 02:00:06 +0000 |
| commit | b67138598ce158e3083f6295a27b63e2065d5ecb (patch) | |
| tree | 748b697e78cb4926eb9cc0d9e3abd5d92799ea41 /libavcodec | |
| parent | 62e52b94e684491dfc5a6b7ca688bb86f7cd0f3f (diff) | |
| download | ffmpeg-b67138598ce158e3083f6295a27b63e2065d5ecb.tar.gz | |
vc1: Simplify a little setting the intra variables
The code currently set the information in at least 4 places, spare
some pointless loops.
Make the code in the loop a little uniform to make easier factorize
it out later.
Diffstat (limited to 'libavcodec')
| -rw-r--r-- | libavcodec/vc1_block.c | 26 |
1 files changed, 11 insertions, 15 deletions
diff --git a/libavcodec/vc1_block.c b/libavcodec/vc1_block.c index acd5145944..ab7f7a3518 100644 --- a/libavcodec/vc1_block.c +++ b/libavcodec/vc1_block.c @@ -1650,8 +1650,6 @@ static int vc1_decode_p_mb_intfr(VC1Context *v) } s->current_picture.mb_type[mb_pos] = MB_TYPE_INTRA; s->mb_intra = v->is_intra[s->mb_x] = 1; - for (i = 0; i < 6; i++) - v->mb_type[0][s->block_index[i]] = 1; fieldtx = v->fieldtx_plane[mb_pos] = get_bits1(gb); mb_has_coeffs = get_bits1(gb); if (mb_has_coeffs) @@ -1664,11 +1662,11 @@ static int vc1_decode_p_mb_intfr(VC1Context *v) s->c_dc_scale = s->c_dc_scale_table[mquant]; dst_idx = 0; for (i = 0; i < 6; i++) { - s->dc_val[0][s->block_index[i]] = 0; + v->a_avail = v->c_avail = 0; + v->mb_type[0][s->block_index[i]] = 1; + s->dc_val[0][s->block_index[i]] = 0; dst_idx += i >> 2; val = ((cbp >> (5 - i)) & 1); - v->mb_type[0][s->block_index[i]] = s->mb_intra; - v->a_avail = v->c_avail = 0; if (i == 2 || i == 3 || !s->first_slice_line) v->a_avail = v->mb_type[0][s->block_index[i] - s->block_wrap[i]]; if (i == 1 || i == 3 || s->mb_x) @@ -1833,11 +1831,11 @@ static int vc1_decode_p_mb_intfi(VC1Context *v) cbp = 1 + get_vlc2(&v->s.gb, v->cbpcy_vlc->table, VC1_ICBPCY_VLC_BITS, 2); dst_idx = 0; for (i = 0; i < 6; i++) { - s->dc_val[0][s->block_index[i]] = 0; + v->a_avail = v->c_avail = 0; v->mb_type[0][s->block_index[i]] = 1; + s->dc_val[0][s->block_index[i]] = 0; dst_idx += i >> 2; val = ((cbp >> (5 - i)) & 1); - v->a_avail = v->c_avail = 0; if (i == 2 || i == 3 || !s->first_slice_line) v->a_avail = v->mb_type[0][s->block_index[i] - s->block_wrap[i]]; if (i == 1 || i == 3 || s->mb_x) @@ -2110,11 +2108,11 @@ static void vc1_decode_b_mb_intfi(VC1Context *v) cbp = 1 + get_vlc2(&v->s.gb, v->cbpcy_vlc->table, VC1_ICBPCY_VLC_BITS, 2); dst_idx = 0; for (i = 0; i < 6; i++) { - s->dc_val[0][s->block_index[i]] = 0; + v->a_avail = v->c_avail = 0; + v->mb_type[0][s->block_index[i]] = 1; + s->dc_val[0][s->block_index[i]] = 0; dst_idx += i >> 2; val = ((cbp >> (5 - i)) & 1); - v->mb_type[0][s->block_index[i]] = s->mb_intra; - v->a_avail = v->c_avail = 0; if (i == 2 || i == 3 || !s->first_slice_line) v->a_avail = v->mb_type[0][s->block_index[i] - s->block_wrap[i]]; if (i == 1 || i == 3 || s->mb_x) @@ -2315,8 +2313,6 @@ static int vc1_decode_b_mb_intfr(VC1Context *v) } s->current_picture.mb_type[mb_pos] = MB_TYPE_INTRA; s->mb_intra = v->is_intra[s->mb_x] = 1; - for (i = 0; i < 6; i++) - v->mb_type[0][s->block_index[i]] = 1; fieldtx = v->fieldtx_plane[mb_pos] = get_bits1(gb); mb_has_coeffs = get_bits1(gb); if (mb_has_coeffs) @@ -2329,11 +2325,11 @@ static int vc1_decode_b_mb_intfr(VC1Context *v) s->c_dc_scale = s->c_dc_scale_table[mquant]; dst_idx = 0; for (i = 0; i < 6; i++) { - s->dc_val[0][s->block_index[i]] = 0; + v->a_avail = v->c_avail = 0; + v->mb_type[0][s->block_index[i]] = 1; + s->dc_val[0][s->block_index[i]] = 0; dst_idx += i >> 2; val = ((cbp >> (5 - i)) & 1); - v->mb_type[0][s->block_index[i]] = s->mb_intra; - v->a_avail = v->c_avail = 0; if (i == 2 || i == 3 || !s->first_slice_line) v->a_avail = v->mb_type[0][s->block_index[i] - s->block_wrap[i]]; if (i == 1 || i == 3 || s->mb_x) |