Chiebot-Mirror
/
FFmpeg
8
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

avcodec/vc1: change the internal ordering of blocks within a macroblock

Browse Source 
The overlap filter needs to cover a full macroblock vertical edge when the
FIELDTX value for two neighbouring macroblocks is not equal. By changing
the internal ordering of the blocks from row major to column major, we do
not need to reinterlace a FIELDTX coded macroblock before running the overlap
filter.

Signed-off-by: Jerome Borsboom <jerome.borsboom@carpalis.nl>
pull/349/head
Jerome Borsboom 7 years ago committed by Carl Eugen Hoyos
parent 1cf6129d13
commit f92e95e9b5
1 changed files with 33 additions and 32 deletions
Whitespace
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Split View
Diff Options
Show Stats Download Patch File Download Diff File
  1. 65
      libavcodec/vc1_block.c

65
libavcodec/vc1_block.c
Unescape View File

@ -45,6 +45,9 @@ static const uint8_t offset_table[2][9] = {
{ 0, 1, 3, 7, 15, 31, 63, 127, 255 },
};
// mapping table for internal block representation
static const int block_map[6] = {0, 2, 1, 3, 4, 5};
/***********************************************************************/
/**
* @name VC-1 Bitplane decoding
@ -86,11 +89,11 @@ static void vc1_put_blocks_clamped(VC1Context *v, int put_signed)
v->mb_type[0][s->block_index[i] - 2 * s->block_wrap[i] - 2]) {
dest = s->dest[0] + ((i & 2) - 4) * 4 * s->linesize + ((i & 1) - 2) * 8;
if (put_signed)
s->idsp.put_signed_pixels_clamped(v->block[v->topleft_blk_idx][i],
s->idsp.put_signed_pixels_clamped(v->block[v->topleft_blk_idx][block_map[i]],
i > 3 ? s->dest[i - 3] - 8 * s->uvlinesize - 8 : dest,
i > 3 ? s->uvlinesize : s->linesize);
else
s->idsp.put_pixels_clamped(v->block[v->topleft_blk_idx][i],
s->idsp.put_pixels_clamped(v->block[v->topleft_blk_idx][block_map[i]],
i > 3 ? s->dest[i - 3] - 8 * s->uvlinesize - 8 : dest,
i > 3 ? s->uvlinesize : s->linesize);
}
@ -102,11 +105,11 @@ static void vc1_put_blocks_clamped(VC1Context *v, int put_signed)
v->mb_type[0][s->block_index[i] - 2 * s->block_wrap[i]]) {
dest = s->dest[0] + ((i & 2) - 4) * 4 * s->linesize + (i & 1) * 8;
if (put_signed)
s->idsp.put_signed_pixels_clamped(v->block[v->top_blk_idx][i],
s->idsp.put_signed_pixels_clamped(v->block[v->top_blk_idx][block_map[i]],
i > 3 ? s->dest[i - 3] - 8 * s->uvlinesize : dest,
i > 3 ? s->uvlinesize : s->linesize);
else
s->idsp.put_pixels_clamped(v->block[v->top_blk_idx][i],
s->idsp.put_pixels_clamped(v->block[v->top_blk_idx][block_map[i]],
i > 3 ? s->dest[i - 3] - 8 * s->uvlinesize : dest,
i > 3 ? s->uvlinesize : s->linesize);
}
@ -125,11 +128,11 @@ static void vc1_put_blocks_clamped(VC1Context *v, int put_signed)
else
dest = s->dest[0] + (i & 2) * 4 * s->linesize + ((i & 1) - 2) * 8;
if (put_signed)
s->idsp.put_signed_pixels_clamped(v->block[v->left_blk_idx][i],
s->idsp.put_signed_pixels_clamped(v->block[v->left_blk_idx][block_map[i]],
i > 3 ? s->dest[i - 3] - 8 : dest,
i > 3 ? s->uvlinesize : s->linesize << fieldtx);
else
s->idsp.put_pixels_clamped(v->block[v->left_blk_idx][i],
s->idsp.put_pixels_clamped(v->block[v->left_blk_idx][block_map[i]],
i > 3 ? s->dest[i - 3] - 8 : dest,
i > 3 ? s->uvlinesize : s->linesize << fieldtx);
}
@ -145,11 +148,11 @@ static void vc1_put_blocks_clamped(VC1Context *v, int put_signed)
else
dest = s->dest[0] + (i & 2) * 4 * s->linesize + (i & 1) * 8;
if (put_signed)
s->idsp.put_signed_pixels_clamped(v->block[v->cur_blk_idx][i],
s->idsp.put_signed_pixels_clamped(v->block[v->cur_blk_idx][block_map[i]],
i > 3 ? s->dest[i - 3] : dest,
i > 3 ? s->uvlinesize : s->linesize << fieldtx);
else
s->idsp.put_pixels_clamped(v->block[v->cur_blk_idx][i],
s->idsp.put_pixels_clamped(v->block[v->cur_blk_idx][block_map[i]],
i > 3 ? s->dest[i - 3] : dest,
i > 3 ? s->uvlinesize : s->linesize << fieldtx);
}
@ -1348,18 +1351,18 @@ static int vc1_decode_p_mb(VC1Context *v)
if (i == 1 || i == 3 || s->mb_x)
v->c_avail = v->mb_type[0][s->block_index[i] - 1];
vc1_decode_intra_block(v, v->block[v->cur_blk_idx][i], i, val, mquant,
vc1_decode_intra_block(v, v->block[v->cur_blk_idx][block_map[i]], i, val, mquant,
(i & 4) ? v->codingset2 : v->codingset);
if (CONFIG_GRAY && (i > 3) && (s->avctx->flags & AV_CODEC_FLAG_GRAY))
continue;
v->vc1dsp.vc1_inv_trans_8x8(v->block[v->cur_blk_idx][i]);
v->vc1dsp.vc1_inv_trans_8x8(v->block[v->cur_blk_idx][block_map[i]]);
if (v->rangeredfrm)
for (j = 0; j < 64; j++)
v->block[v->cur_blk_idx][i][j] <<= 1;
v->block[v->cur_blk_idx][block_map[i]][j] <<= 1;
block_cbp |= 0xF << (i << 2);
block_intra |= 1 << i;
} else if (val) {
pat = vc1_decode_p_block(v, v->block[v->cur_blk_idx][i], i, mquant, ttmb, first_block,
pat = vc1_decode_p_block(v, v->block[v->cur_blk_idx][block_map[i]], i, mquant, ttmb, first_block,
s->dest[dst_idx] + off, (i & 4) ? s->uvlinesize : s->linesize,
CONFIG_GRAY && (i & 4) && (s->avctx->flags & AV_CODEC_FLAG_GRAY), &block_tt);
block_cbp |= pat << (i << 2);
@ -1449,18 +1452,18 @@ static int vc1_decode_p_mb(VC1Context *v)
if (i == 1 || i == 3 || s->mb_x)
v->c_avail = v->mb_type[0][s->block_index[i] - 1];
vc1_decode_intra_block(v, v->block[v->cur_blk_idx][i], i, is_coded[i], mquant,
vc1_decode_intra_block(v, v->block[v->cur_blk_idx][block_map[i]], i, is_coded[i], mquant,
(i & 4) ? v->codingset2 : v->codingset);
if (CONFIG_GRAY && (i > 3) && (s->avctx->flags & AV_CODEC_FLAG_GRAY))
continue;
v->vc1dsp.vc1_inv_trans_8x8(v->block[v->cur_blk_idx][i]);
v->vc1dsp.vc1_inv_trans_8x8(v->block[v->cur_blk_idx][block_map[i]]);
if (v->rangeredfrm)
for (j = 0; j < 64; j++)
v->block[v->cur_blk_idx][i][j] <<= 1;
v->block[v->cur_blk_idx][block_map[i]][j] <<= 1;
block_cbp |= 0xF << (i << 2);
block_intra |= 1 << i;
} else if (is_coded[i]) {
pat = vc1_decode_p_block(v, v->block[v->cur_blk_idx][i], i, mquant, ttmb,
pat = vc1_decode_p_block(v, v->block[v->cur_blk_idx][block_map[i]], i, mquant, ttmb,
first_block, s->dest[dst_idx] + off,
(i & 4) ? s->uvlinesize : s->linesize,
CONFIG_GRAY && (i & 4) && (s->avctx->flags & AV_CODEC_FLAG_GRAY),
@ -1591,11 +1594,11 @@ static int vc1_decode_p_mb_intfr(VC1Context *v)
if (i == 1 || i == 3 || s->mb_x)
v->c_avail = v->mb_type[0][s->block_index[i] - 1];
vc1_decode_intra_block(v, v->block[v->cur_blk_idx][i], i, val, mquant,
vc1_decode_intra_block(v, v->block[v->cur_blk_idx][block_map[i]], i, val, mquant,
(i & 4) ? v->codingset2 : v->codingset);
if (CONFIG_GRAY && (i > 3) && (s->avctx->flags & AV_CODEC_FLAG_GRAY))
continue;
v->vc1dsp.vc1_inv_trans_8x8(v->block[v->cur_blk_idx][i]);
v->vc1dsp.vc1_inv_trans_8x8(v->block[v->cur_blk_idx][block_map[i]]);
if (i < 4)
off = (fieldtx) ? ((i & 1) * 8) + ((i & 2) >> 1) * s->linesize : (i & 1) * 8 + 4 * (i & 2) * s->linesize;
else
@ -1671,7 +1674,7 @@ static int vc1_decode_p_mb_intfr(VC1Context *v)
else
off = (i & 4) ? 0 : ((i & 1) * 8 + ((i > 1) * s->linesize));
if (val) {
pat = vc1_decode_p_block(v, v->block[v->cur_blk_idx][i], i, mquant, ttmb,
pat = vc1_decode_p_block(v, v->block[v->cur_blk_idx][block_map[i]], i, mquant, ttmb,
first_block, s->dest[dst_idx] + off,
(i & 4) ? s->uvlinesize : (s->linesize << fieldtx),
CONFIG_GRAY && (i & 4) && (s->avctx->flags & AV_CODEC_FLAG_GRAY), &block_tt);
@ -1757,11 +1760,11 @@ static int vc1_decode_p_mb_intfi(VC1Context *v)
if (i == 1 || i == 3 || s->mb_x)
v->c_avail = v->mb_type[0][s->block_index[i] - 1];
vc1_decode_intra_block(v, v->block[v->cur_blk_idx][i], i, val, mquant,
vc1_decode_intra_block(v, v->block[v->cur_blk_idx][block_map[i]], i, val, mquant,
(i & 4) ? v->codingset2 : v->codingset);
if (CONFIG_GRAY && (i > 3) && (s->avctx->flags & AV_CODEC_FLAG_GRAY))
continue;
v->vc1dsp.vc1_inv_trans_8x8(v->block[v->cur_blk_idx][i]);
v->vc1dsp.vc1_inv_trans_8x8(v->block[v->cur_blk_idx][block_map[i]]);
off = (i & 4) ? 0 : ((i & 1) * 8 + (i & 2) * 4 * s->linesize);
block_cbp |= 0xf << (i << 2);
}
@ -1806,7 +1809,7 @@ static int vc1_decode_p_mb_intfi(VC1Context *v)
val = ((cbp >> (5 - i)) & 1);
off = (i & 4) ? 0 : (i & 1) * 8 + (i & 2) * 4 * s->linesize;
if (val) {
pat = vc1_decode_p_block(v, v->block[v->cur_blk_idx][i], i, mquant, ttmb,
pat = vc1_decode_p_block(v, v->block[v->cur_blk_idx][block_map[i]], i, mquant, ttmb,
first_block, s->dest[dst_idx] + off,
(i & 4) ? s->uvlinesize : s->linesize,
CONFIG_GRAY && (i & 4) && (s->avctx->flags & AV_CODEC_FLAG_GRAY),
@ -2541,9 +2544,8 @@ static void vc1_decode_i_blocks(VC1Context *v)
s->mb_x = 0;
init_block_index(v);
for (; s->mb_x < v->end_mb_x; s->mb_x++) {
int16_t (*block)[64] = v->block[v->cur_blk_idx];
ff_update_block_index(s);
s->bdsp.clear_blocks(block[0]);
s->bdsp.clear_blocks(v->block[v->cur_blk_idx][0]);
mb_pos = s->mb_x + s->mb_y * s->mb_width;
s->current_picture.mb_type[mb_pos] = MB_TYPE_INTRA;
s->current_picture.qscale_table[mb_pos] = v->pq;
@ -2568,11 +2570,11 @@ static void vc1_decode_i_blocks(VC1Context *v)
}
cbp |= val << (5 - k);
vc1_decode_i_block(v, block[k], k, val, (k < 4) ? v->codingset : v->codingset2);
vc1_decode_i_block(v, v->block[v->cur_blk_idx][block_map[k]], k, val, (k < 4) ? v->codingset : v->codingset2);
if (CONFIG_GRAY && k > 3 && (s->avctx->flags & AV_CODEC_FLAG_GRAY))
continue;
v->vc1dsp.vc1_inv_trans_8x8(block[k]);
v->vc1dsp.vc1_inv_trans_8x8(v->block[v->cur_blk_idx][block_map[k]]);
}
if (v->overlap && v->pq >= 9) {
@ -2580,13 +2582,13 @@ static void vc1_decode_i_blocks(VC1Context *v)
if (v->rangeredfrm)
for (k = 0; k < 6; k++)
for (j = 0; j < 64; j++)
block[k][j] <<= 1;
v->block[v->cur_blk_idx][block_map[k]][j] <<= 1;
vc1_put_blocks_clamped(v, 1);
} else {
if (v->rangeredfrm)
for (k = 0; k < 6; k++)
for (j = 0; j < 64; j++)
block[k][j] = (block[k][j] - 64) << 1;
v->block[v->cur_blk_idx][block_map[k]][j] = (v->block[v->cur_blk_idx][block_map[k]][j] - 64) << 1;
vc1_put_blocks_clamped(v, 0);
}
@ -2673,10 +2675,9 @@ static void vc1_decode_i_blocks_adv(VC1Context *v)
s->mb_x = 0;
init_block_index(v);
for (;s->mb_x < s->mb_width; s->mb_x++) {
int16_t (*block)[64] = v->block[v->cur_blk_idx];
mquant = v->pq;
ff_update_block_index(s);
s->bdsp.clear_blocks(block[0]);
s->bdsp.clear_blocks(v->block[v->cur_blk_idx][0]);
mb_pos = s->mb_x + s->mb_y * s->mb_stride;
s->current_picture.mb_type[mb_pos + v->mb_off] = MB_TYPE_INTRA;
for (int i = 0; i < 4; i++) {
@ -2718,12 +2719,12 @@ static void vc1_decode_i_blocks_adv(VC1Context *v)
v->a_avail = !s->first_slice_line || (k == 2 || k == 3);
v->c_avail = !!s->mb_x || (k == 1 || k == 3);
vc1_decode_i_block_adv(v, block[k], k, val,
vc1_decode_i_block_adv(v, v->block[v->cur_blk_idx][block_map[k]], k, val,
(k < 4) ? v->codingset : v->codingset2, mquant);
if (CONFIG_GRAY && k > 3 && (s->avctx->flags & AV_CODEC_FLAG_GRAY))
continue;
v->vc1dsp.vc1_inv_trans_8x8(block[k]);
v->vc1dsp.vc1_inv_trans_8x8(v->block[v->cur_blk_idx][block_map[k]]);
}
if (v->overlap && (v->pq >= 9 || v->condover != CONDOVER_NONE))

Write Preview
Loading…
Cancel
Save