2002-10-03 21:07:39 +00:00
|
|
|
/*
|
|
|
|
* DV decoder
|
2009-01-19 15:46:40 +00:00
|
|
|
* Copyright (c) 2002 Fabrice Bellard
|
|
|
|
* Copyright (c) 2004 Roman Shaposhnik
|
2002-10-03 21:07:39 +00:00
|
|
|
*
|
2005-12-17 18:14:38 +00:00
|
|
|
* DV encoder
|
2009-01-19 15:46:40 +00:00
|
|
|
* Copyright (c) 2003 Roman Shaposhnik
|
2003-10-01 23:34:46 +00:00
|
|
|
*
|
2006-03-06 08:54:33 +00:00
|
|
|
* 50 Mbps (DVCPRO50) support
|
|
|
|
* Copyright (c) 2006 Daniel Maas <dmaas@maasdigital.com>
|
|
|
|
*
|
2008-08-28 22:41:00 +00:00
|
|
|
* 100 Mbps (DVCPRO HD) support
|
|
|
|
* Initial code by Daniel Maas <dmaas@maasdigital.com> (funded by BBC R&D)
|
|
|
|
* Final code by Roman Shaposhnik
|
|
|
|
*
|
2003-10-01 23:34:46 +00:00
|
|
|
* Many thanks to Dan Dennedy <dan@dennedy.org> for providing wealth
|
|
|
|
* of DV technical info.
|
|
|
|
*
|
2011-03-18 17:35:10 +00:00
|
|
|
* This file is part of Libav.
|
2006-10-07 15:30:46 +00:00
|
|
|
*
|
2011-03-18 17:35:10 +00:00
|
|
|
* Libav is free software; you can redistribute it and/or
|
2002-10-03 21:07:39 +00:00
|
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
|
|
* License as published by the Free Software Foundation; either
|
2006-10-07 15:30:46 +00:00
|
|
|
* version 2.1 of the License, or (at your option) any later version.
|
2002-10-03 21:07:39 +00:00
|
|
|
*
|
2011-03-18 17:35:10 +00:00
|
|
|
* Libav is distributed in the hope that it will be useful,
|
2002-10-03 21:07:39 +00:00
|
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
|
|
* Lesser General Public License for more details.
|
|
|
|
*
|
|
|
|
* You should have received a copy of the GNU Lesser General Public
|
2011-03-18 17:35:10 +00:00
|
|
|
* License along with Libav; if not, write to the Free Software
|
2006-01-12 22:43:26 +00:00
|
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
2002-10-03 21:07:39 +00:00
|
|
|
*/
|
2003-03-06 11:32:04 +00:00
|
|
|
|
|
|
|
/**
|
2010-04-20 14:45:34 +00:00
|
|
|
* @file
|
2003-10-01 23:34:46 +00:00
|
|
|
* DV codec.
|
2003-03-06 11:32:04 +00:00
|
|
|
*/
|
2011-12-16 21:19:50 +00:00
|
|
|
|
2013-02-07 23:31:13 +00:00
|
|
|
#include "libavutil/internal.h"
|
2011-06-03 09:42:07 +00:00
|
|
|
#include "libavutil/pixdesc.h"
|
2002-10-03 21:07:39 +00:00
|
|
|
#include "avcodec.h"
|
2009-04-13 16:20:26 +00:00
|
|
|
#include "get_bits.h"
|
2012-02-13 11:00:38 +00:00
|
|
|
#include "internal.h"
|
2009-04-12 08:35:26 +00:00
|
|
|
#include "put_bits.h"
|
2002-10-03 21:07:39 +00:00
|
|
|
#include "simple_idct.h"
|
2003-09-29 17:54:07 +00:00
|
|
|
#include "dvdata.h"
|
2013-11-10 17:05:39 +00:00
|
|
|
#include "dv.h"
|
2002-10-03 21:07:39 +00:00
|
|
|
|
|
|
|
/* XXX: also include quantization */
|
2012-03-18 18:01:45 +00:00
|
|
|
RL_VLC_ELEM ff_dv_rl_vlc[1184];
|
2008-11-08 00:18:00 +00:00
|
|
|
|
2008-11-18 20:48:26 +00:00
|
|
|
static inline void dv_calc_mb_coordinates(const DVprofile *d, int chan, int seq, int slot,
|
|
|
|
uint16_t *tbl)
|
|
|
|
{
|
2009-02-17 12:03:10 +00:00
|
|
|
static const uint8_t off[] = { 2, 6, 8, 0, 4 };
|
|
|
|
static const uint8_t shuf1[] = { 36, 18, 54, 0, 72 };
|
|
|
|
static const uint8_t shuf2[] = { 24, 12, 36, 0, 48 };
|
|
|
|
static const uint8_t shuf3[] = { 18, 9, 27, 0, 36 };
|
2008-11-18 20:48:26 +00:00
|
|
|
|
2009-02-17 12:03:10 +00:00
|
|
|
static const uint8_t l_start[] = {0, 4, 9, 13, 18, 22, 27, 31, 36, 40};
|
|
|
|
static const uint8_t l_start_shuffled[] = { 9, 4, 13, 0, 18 };
|
2008-11-18 20:48:26 +00:00
|
|
|
|
2009-02-17 12:03:10 +00:00
|
|
|
static const uint8_t serpent1[] = {0, 1, 2, 2, 1, 0,
|
2008-11-18 20:48:26 +00:00
|
|
|
0, 1, 2, 2, 1, 0,
|
|
|
|
0, 1, 2, 2, 1, 0,
|
|
|
|
0, 1, 2, 2, 1, 0,
|
|
|
|
0, 1, 2};
|
2009-02-17 12:03:10 +00:00
|
|
|
static const uint8_t serpent2[] = {0, 1, 2, 3, 4, 5, 5, 4, 3, 2, 1, 0,
|
2008-11-18 20:48:26 +00:00
|
|
|
0, 1, 2, 3, 4, 5, 5, 4, 3, 2, 1, 0,
|
|
|
|
0, 1, 2, 3, 4, 5};
|
|
|
|
|
2009-02-17 12:03:10 +00:00
|
|
|
static const uint8_t remap[][2] = {{ 0, 0}, { 0, 0}, { 0, 0}, { 0, 0}, /* dummy */
|
2008-11-18 20:48:26 +00:00
|
|
|
{ 0, 0}, { 0, 1}, { 0, 2}, { 0, 3}, {10, 0},
|
|
|
|
{10, 1}, {10, 2}, {10, 3}, {20, 0}, {20, 1},
|
|
|
|
{20, 2}, {20, 3}, {30, 0}, {30, 1}, {30, 2},
|
|
|
|
{30, 3}, {40, 0}, {40, 1}, {40, 2}, {40, 3},
|
|
|
|
{50, 0}, {50, 1}, {50, 2}, {50, 3}, {60, 0},
|
|
|
|
{60, 1}, {60, 2}, {60, 3}, {70, 0}, {70, 1},
|
|
|
|
{70, 2}, {70, 3}, { 0,64}, { 0,65}, { 0,66},
|
|
|
|
{10,64}, {10,65}, {10,66}, {20,64}, {20,65},
|
|
|
|
{20,66}, {30,64}, {30,65}, {30,66}, {40,64},
|
|
|
|
{40,65}, {40,66}, {50,64}, {50,65}, {50,66},
|
|
|
|
{60,64}, {60,65}, {60,66}, {70,64}, {70,65},
|
|
|
|
{70,66}, { 0,67}, {20,67}, {40,67}, {60,67}};
|
|
|
|
|
|
|
|
int i, k, m;
|
|
|
|
int x, y, blk;
|
|
|
|
|
|
|
|
for (m=0; m<5; m++) {
|
|
|
|
switch (d->width) {
|
|
|
|
case 1440:
|
|
|
|
blk = (chan*11+seq)*27+slot;
|
|
|
|
|
|
|
|
if (chan == 0 && seq == 11) {
|
|
|
|
x = m*27+slot;
|
|
|
|
if (x<90) {
|
|
|
|
y = 0;
|
|
|
|
} else {
|
|
|
|
x = (x - 90)*2;
|
|
|
|
y = 67;
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
i = (4*chan + blk + off[m])%11;
|
|
|
|
k = (blk/11)%27;
|
|
|
|
|
|
|
|
x = shuf1[m] + (chan&1)*9 + k%9;
|
|
|
|
y = (i*3+k/9)*2 + (chan>>1) + 1;
|
|
|
|
}
|
|
|
|
tbl[m] = (x<<1)|(y<<9);
|
|
|
|
break;
|
|
|
|
case 1280:
|
|
|
|
blk = (chan*10+seq)*27+slot;
|
|
|
|
|
|
|
|
i = (4*chan + (seq/5) + 2*blk + off[m])%10;
|
|
|
|
k = (blk/5)%27;
|
|
|
|
|
|
|
|
x = shuf1[m]+(chan&1)*9 + k%9;
|
|
|
|
y = (i*3+k/9)*2 + (chan>>1) + 4;
|
|
|
|
|
|
|
|
if (x >= 80) {
|
|
|
|
x = remap[y][0]+((x-80)<<(y>59));
|
|
|
|
y = remap[y][1];
|
|
|
|
}
|
|
|
|
tbl[m] = (x<<1)|(y<<9);
|
|
|
|
break;
|
|
|
|
case 960:
|
|
|
|
blk = (chan*10+seq)*27+slot;
|
|
|
|
|
|
|
|
i = (4*chan + (seq/5) + 2*blk + off[m])%10;
|
|
|
|
k = (blk/5)%27 + (i&1)*3;
|
|
|
|
|
|
|
|
x = shuf2[m] + k%6 + 6*(chan&1);
|
|
|
|
y = l_start[i] + k/6 + 45*(chan>>1);
|
|
|
|
tbl[m] = (x<<1)|(y<<9);
|
|
|
|
break;
|
|
|
|
case 720:
|
|
|
|
switch (d->pix_fmt) {
|
2012-10-06 10:10:34 +00:00
|
|
|
case AV_PIX_FMT_YUV422P:
|
2008-11-18 20:48:26 +00:00
|
|
|
x = shuf3[m] + slot/3;
|
|
|
|
y = serpent1[slot] +
|
|
|
|
((((seq + off[m]) % d->difseg_size)<<1) + chan)*3;
|
|
|
|
tbl[m] = (x<<1)|(y<<8);
|
|
|
|
break;
|
2012-10-06 10:10:34 +00:00
|
|
|
case AV_PIX_FMT_YUV420P:
|
2008-11-18 20:48:26 +00:00
|
|
|
x = shuf3[m] + slot/3;
|
|
|
|
y = serpent1[slot] +
|
|
|
|
((seq + off[m]) % d->difseg_size)*3;
|
|
|
|
tbl[m] = (x<<1)|(y<<9);
|
|
|
|
break;
|
2012-10-06 10:10:34 +00:00
|
|
|
case AV_PIX_FMT_YUV411P:
|
2008-11-18 20:48:26 +00:00
|
|
|
i = (seq + off[m]) % d->difseg_size;
|
|
|
|
k = slot + ((m==1||m==2)?3:0);
|
|
|
|
|
|
|
|
x = l_start_shuffled[m] + k/6;
|
|
|
|
y = serpent2[k] + i*6;
|
|
|
|
if (x>21)
|
|
|
|
y = y*2 - i*6;
|
|
|
|
tbl[m] = (x<<2)|(y<<8);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
default:
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2012-04-04 15:13:13 +00:00
|
|
|
/* quantization quanta by QNO for DV100 */
|
|
|
|
static const uint8_t dv100_qstep[16] = {
|
|
|
|
1, /* QNO = 0 and 1 both have no quantization */
|
|
|
|
1,
|
|
|
|
2, 3, 4, 5, 6, 7, 8, 16, 18, 20, 22, 24, 28, 52
|
|
|
|
};
|
|
|
|
|
|
|
|
static const uint8_t dv_quant_areas[4] = { 6, 21, 43, 64 };
|
|
|
|
|
2014-06-18 08:59:37 +00:00
|
|
|
int ff_dv_init_dynamic_tables(DVVideoContext *ctx, const DVprofile *d)
|
2008-11-08 00:18:00 +00:00
|
|
|
{
|
2008-11-18 20:48:26 +00:00
|
|
|
int j,i,c,s,p;
|
2008-11-20 01:40:40 +00:00
|
|
|
uint32_t *factor1, *factor2;
|
|
|
|
const int *iweight1, *iweight2;
|
2008-11-08 00:18:00 +00:00
|
|
|
|
2014-06-18 09:02:24 +00:00
|
|
|
p = i = 0;
|
|
|
|
for (c = 0; c < d->n_difchan; c++) {
|
|
|
|
for (s = 0; s < d->difseg_size; s++) {
|
|
|
|
p += 6;
|
|
|
|
for (j = 0; j < 27; j++) {
|
|
|
|
p += !(j % 3);
|
|
|
|
if (!(DV_PROFILE_IS_1080i50(d) && c != 0 && s == 11) &&
|
|
|
|
!(DV_PROFILE_IS_720p50(d) && s > 9)) {
|
|
|
|
dv_calc_mb_coordinates(d, c, s, j, &ctx->work_chunks[i].mb_coordinates[0]);
|
|
|
|
ctx->work_chunks[i++].buf_offset = p;
|
2008-11-19 01:40:09 +00:00
|
|
|
}
|
2014-06-18 09:02:24 +00:00
|
|
|
p += 5;
|
2008-11-08 00:18:00 +00:00
|
|
|
}
|
|
|
|
}
|
2014-06-18 09:02:24 +00:00
|
|
|
}
|
2008-11-08 00:18:00 +00:00
|
|
|
|
2014-06-18 09:02:24 +00:00
|
|
|
factor1 = &ctx->idct_factor[0];
|
|
|
|
factor2 = &ctx->idct_factor[DV_PROFILE_IS_HD(d) ? 4096 : 2816];
|
|
|
|
if (d->height == 720) {
|
|
|
|
iweight1 = &ff_dv_iweight_720_y[0];
|
|
|
|
iweight2 = &ff_dv_iweight_720_c[0];
|
|
|
|
} else {
|
|
|
|
iweight1 = &ff_dv_iweight_1080_y[0];
|
|
|
|
iweight2 = &ff_dv_iweight_1080_c[0];
|
|
|
|
}
|
|
|
|
if (DV_PROFILE_IS_HD(d)) {
|
|
|
|
for (c = 0; c < 4; c++) {
|
|
|
|
for (s = 0; s < 16; s++) {
|
|
|
|
for (i = 0; i < 64; i++) {
|
|
|
|
*factor1++ = (dv100_qstep[s] << (c + 9)) * iweight1[i];
|
|
|
|
*factor2++ = (dv100_qstep[s] << (c + 9)) * iweight2[i];
|
2008-11-20 01:40:40 +00:00
|
|
|
}
|
2008-08-11 09:35:58 +00:00
|
|
|
}
|
2014-06-18 09:02:24 +00:00
|
|
|
}
|
|
|
|
} else {
|
|
|
|
iweight1 = &ff_dv_iweight_88[0];
|
|
|
|
for (j = 0; j < 2; j++, iweight1 = &ff_dv_iweight_248[0]) {
|
|
|
|
for (s = 0; s < 22; s++) {
|
|
|
|
for (i = c = 0; c < 4; c++) {
|
|
|
|
for (; i < dv_quant_areas[c]; i++) {
|
|
|
|
*factor1 = iweight1[i] << (ff_dv_quant_shifts[s][c] + 1);
|
|
|
|
*factor2++ = (*factor1++) << 1;
|
2010-03-29 20:58:19 +00:00
|
|
|
}
|
|
|
|
}
|
2008-08-28 22:41:00 +00:00
|
|
|
}
|
|
|
|
}
|
2014-06-18 09:02:24 +00:00
|
|
|
}
|
2002-10-03 21:07:39 +00:00
|
|
|
|
2008-11-20 01:40:40 +00:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2012-03-18 18:01:45 +00:00
|
|
|
av_cold int ff_dvvideo_init(AVCodecContext *avctx)
|
2002-10-03 21:07:39 +00:00
|
|
|
{
|
2004-03-14 23:45:42 +00:00
|
|
|
DVVideoContext *s = avctx->priv_data;
|
2008-10-24 21:41:27 +00:00
|
|
|
static int done = 0;
|
2003-11-27 01:40:13 +00:00
|
|
|
int i, j;
|
2002-10-03 21:07:39 +00:00
|
|
|
|
|
|
|
if (!done) {
|
2003-09-29 17:54:07 +00:00
|
|
|
VLC dv_vlc;
|
2004-03-25 01:46:40 +00:00
|
|
|
uint16_t new_dv_vlc_bits[NB_DV_VLC*2];
|
2008-10-24 21:41:27 +00:00
|
|
|
uint8_t new_dv_vlc_len[NB_DV_VLC*2];
|
|
|
|
uint8_t new_dv_vlc_run[NB_DV_VLC*2];
|
|
|
|
int16_t new_dv_vlc_level[NB_DV_VLC*2];
|
2002-10-03 21:07:39 +00:00
|
|
|
|
|
|
|
done = 1;
|
|
|
|
|
2005-12-22 01:10:11 +00:00
|
|
|
/* it's faster to include sign bit in a generic VLC parsing scheme */
|
2008-10-24 21:41:27 +00:00
|
|
|
for (i = 0, j = 0; i < NB_DV_VLC; i++, j++) {
|
2013-11-10 16:23:31 +00:00
|
|
|
new_dv_vlc_bits[j] = ff_dv_vlc_bits[i];
|
|
|
|
new_dv_vlc_len[j] = ff_dv_vlc_len[i];
|
|
|
|
new_dv_vlc_run[j] = ff_dv_vlc_run[i];
|
|
|
|
new_dv_vlc_level[j] = ff_dv_vlc_level[i];
|
2005-12-22 01:10:11 +00:00
|
|
|
|
2013-11-10 16:23:31 +00:00
|
|
|
if (ff_dv_vlc_level[i]) {
|
2005-12-22 01:10:11 +00:00
|
|
|
new_dv_vlc_bits[j] <<= 1;
|
|
|
|
new_dv_vlc_len[j]++;
|
|
|
|
|
|
|
|
j++;
|
2013-11-10 16:23:31 +00:00
|
|
|
new_dv_vlc_bits[j] = (ff_dv_vlc_bits[i] << 1) | 1;
|
|
|
|
new_dv_vlc_len[j] = ff_dv_vlc_len[i] + 1;
|
|
|
|
new_dv_vlc_run[j] = ff_dv_vlc_run[i];
|
|
|
|
new_dv_vlc_level[j] = -ff_dv_vlc_level[i];
|
2005-12-22 01:10:11 +00:00
|
|
|
}
|
|
|
|
}
|
2005-12-17 18:14:38 +00:00
|
|
|
|
2002-10-03 21:07:39 +00:00
|
|
|
/* NOTE: as a trick, we use the fact the no codes are unused
|
|
|
|
to accelerate the parsing of partial codes */
|
2005-12-17 18:14:38 +00:00
|
|
|
init_vlc(&dv_vlc, TEX_VLC_BITS, j,
|
2004-11-27 18:10:06 +00:00
|
|
|
new_dv_vlc_len, 1, 1, new_dv_vlc_bits, 2, 2, 0);
|
2007-03-13 23:30:28 +00:00
|
|
|
assert(dv_vlc.table_size == 1184);
|
2006-01-06 19:19:39 +00:00
|
|
|
|
2008-10-24 21:41:27 +00:00
|
|
|
for (i = 0; i < dv_vlc.table_size; i++){
|
|
|
|
int code = dv_vlc.table[i][0];
|
|
|
|
int len = dv_vlc.table[i][1];
|
2002-10-03 21:07:39 +00:00
|
|
|
int level, run;
|
2005-12-17 18:14:38 +00:00
|
|
|
|
2008-10-24 21:41:27 +00:00
|
|
|
if (len < 0){ //more bits needed
|
|
|
|
run = 0;
|
|
|
|
level = code;
|
2002-10-03 21:07:39 +00:00
|
|
|
} else {
|
2008-10-24 21:41:27 +00:00
|
|
|
run = new_dv_vlc_run [code] + 1;
|
|
|
|
level = new_dv_vlc_level[code];
|
2002-10-03 21:07:39 +00:00
|
|
|
}
|
2012-03-18 18:01:45 +00:00
|
|
|
ff_dv_rl_vlc[i].len = len;
|
|
|
|
ff_dv_rl_vlc[i].level = level;
|
|
|
|
ff_dv_rl_vlc[i].run = run;
|
2002-10-03 21:07:39 +00:00
|
|
|
}
|
2012-02-09 09:37:58 +00:00
|
|
|
ff_free_vlc(&dv_vlc);
|
2002-10-03 21:07:39 +00:00
|
|
|
}
|
2002-10-04 07:49:00 +00:00
|
|
|
|
2008-10-24 21:41:27 +00:00
|
|
|
s->avctx = avctx;
|
2009-05-11 04:34:23 +00:00
|
|
|
avctx->chroma_sample_location = AVCHROMA_LOC_TOPLEFT;
|
2005-12-17 18:14:38 +00:00
|
|
|
|
2002-10-03 21:07:39 +00:00
|
|
|
return 0;
|
|
|
|
}
|