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vc1: Simplify a little setting the intra variables

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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.
pull/100/head
Luca Barbato 10 years ago committed by Vittorio Giovara
parent 62e52b94e6
commit b67138598c
1 changed files with 11 additions and 15 deletions
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  1. 26
      libavcodec/vc1_block.c

26
libavcodec/vc1_block.c
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@ -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)

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