mirror of
https://git.ffmpeg.org/ffmpeg.git
synced 2024-09-16 19:43:37 +00:00
790f793844
There are lots of files that don't need it: The number of object files that actually need it went down from 2011 to 884 here. Keep it for external users in order to not cause breakages. Also improve the other headers a bit while just at it. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
1616 lines
66 KiB
C
1616 lines
66 KiB
C
/*
|
|
* common functions for Indeo Video Interactive codecs (Indeo4 and Indeo5)
|
|
*
|
|
* Copyright (c) 2009 Maxim Poliakovski
|
|
*
|
|
* This file is part of FFmpeg.
|
|
*
|
|
* FFmpeg is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* FFmpeg is distributed in the hope that it will be useful,
|
|
* 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
|
|
* License along with FFmpeg; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
/**
|
|
* @file
|
|
* This file contains functions and data shared by both Indeo4 and
|
|
* Indeo5 decoders.
|
|
*/
|
|
|
|
#include <inttypes.h>
|
|
|
|
#include "libavutil/attributes.h"
|
|
#include "libavutil/imgutils.h"
|
|
#include "libavutil/mem.h"
|
|
#include "libavutil/thread.h"
|
|
|
|
#define BITSTREAM_READER_LE
|
|
#include "avcodec.h"
|
|
#include "decode.h"
|
|
#include "get_bits.h"
|
|
#include "ivi.h"
|
|
#include "ivi_dsp.h"
|
|
|
|
/**
|
|
* These are 2x8 predefined Huffman codebooks for coding macroblock/block
|
|
* signals. They are specified using "huffman descriptors" in order to
|
|
* avoid huge static tables. The decoding tables will be generated at
|
|
* startup from these descriptors.
|
|
*/
|
|
/** static macroblock huffman tables */
|
|
static const IVIHuffDesc ivi_mb_huff_desc[8] = {
|
|
{8, {0, 4, 5, 4, 4, 4, 6, 6}},
|
|
{12, {0, 2, 2, 3, 3, 3, 3, 5, 3, 2, 2, 2}},
|
|
{12, {0, 2, 3, 4, 3, 3, 3, 3, 4, 3, 2, 2}},
|
|
{12, {0, 3, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2}},
|
|
{13, {0, 4, 4, 3, 3, 3, 3, 2, 3, 3, 2, 1, 1}},
|
|
{9, {0, 4, 4, 4, 4, 3, 3, 3, 2}},
|
|
{10, {0, 4, 4, 4, 4, 3, 3, 2, 2, 2}},
|
|
{12, {0, 4, 4, 4, 3, 3, 2, 3, 2, 2, 2, 2}}
|
|
};
|
|
|
|
/** static block huffman tables */
|
|
static const IVIHuffDesc ivi_blk_huff_desc[8] = {
|
|
{10, {1, 2, 3, 4, 4, 7, 5, 5, 4, 1}},
|
|
{11, {2, 3, 4, 4, 4, 7, 5, 4, 3, 3, 2}},
|
|
{12, {2, 4, 5, 5, 5, 5, 6, 4, 4, 3, 1, 1}},
|
|
{13, {3, 3, 4, 4, 5, 6, 6, 4, 4, 3, 2, 1, 1}},
|
|
{11, {3, 4, 4, 5, 5, 5, 6, 5, 4, 2, 2}},
|
|
{13, {3, 4, 5, 5, 5, 5, 6, 4, 3, 3, 2, 1, 1}},
|
|
{13, {3, 4, 5, 5, 5, 6, 5, 4, 3, 3, 2, 1, 1}},
|
|
{9, {3, 4, 4, 5, 5, 5, 6, 5, 5}}
|
|
};
|
|
|
|
static VLC ivi_mb_vlc_tabs [8]; ///< static macroblock Huffman tables
|
|
static VLC ivi_blk_vlc_tabs[8]; ///< static block Huffman tables
|
|
|
|
typedef void (*ivi_mc_func) (int16_t *buf, const int16_t *ref_buf,
|
|
ptrdiff_t pitch, int mc_type);
|
|
typedef void (*ivi_mc_avg_func) (int16_t *buf, const int16_t *ref_buf1,
|
|
const int16_t *ref_buf2,
|
|
ptrdiff_t pitch, int mc_type, int mc_type2);
|
|
|
|
static int ivi_mc(const IVIBandDesc *band, ivi_mc_func mc, ivi_mc_avg_func mc_avg,
|
|
int offs, int mv_x, int mv_y, int mv_x2, int mv_y2,
|
|
int mc_type, int mc_type2)
|
|
{
|
|
int ref_offs = offs + mv_y * band->pitch + mv_x;
|
|
int buf_size = band->pitch * band->aheight;
|
|
int min_size = band->pitch * (band->blk_size - 1) + band->blk_size;
|
|
int ref_size = (mc_type > 1) * band->pitch + (mc_type & 1);
|
|
|
|
if (mc_type != -1) {
|
|
av_assert0(offs >= 0 && ref_offs >= 0 && band->ref_buf);
|
|
av_assert0(buf_size - min_size >= offs);
|
|
av_assert0(buf_size - min_size - ref_size >= ref_offs);
|
|
}
|
|
|
|
if (mc_type2 == -1) {
|
|
mc(band->buf + offs, band->ref_buf + ref_offs, band->pitch, mc_type);
|
|
} else {
|
|
int ref_offs2 = offs + mv_y2 * band->pitch + mv_x2;
|
|
int ref_size2 = (mc_type2 > 1) * band->pitch + (mc_type2 & 1);
|
|
if (offs < 0 || ref_offs2 < 0 || !band->b_ref_buf)
|
|
return AVERROR_INVALIDDATA;
|
|
if (buf_size - min_size - ref_size2 < ref_offs2)
|
|
return AVERROR_INVALIDDATA;
|
|
|
|
if (mc_type == -1)
|
|
mc(band->buf + offs, band->b_ref_buf + ref_offs2,
|
|
band->pitch, mc_type2);
|
|
else
|
|
mc_avg(band->buf + offs, band->ref_buf + ref_offs,
|
|
band->b_ref_buf + ref_offs2, band->pitch,
|
|
mc_type, mc_type2);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Generate a huffman codebook from the given descriptor
|
|
* and convert it into the FFmpeg VLC table.
|
|
*
|
|
* @param[in] cb pointer to codebook descriptor
|
|
* @param[out] vlc where to place the generated VLC table
|
|
* @param[in] flag flag: 1 - for static or 0 for dynamic tables
|
|
* @return result code: 0 - OK, -1 = error (invalid codebook descriptor)
|
|
*/
|
|
static int ivi_create_huff_from_desc(const IVIHuffDesc *cb, VLC *vlc, int flag)
|
|
{
|
|
int pos, i, j, codes_per_row, prefix, not_last_row;
|
|
uint16_t codewords[256]; /* FIXME: move this temporal storage out? */
|
|
uint8_t bits[256];
|
|
|
|
pos = 0; /* current position = 0 */
|
|
|
|
for (i = 0; i < cb->num_rows; i++) {
|
|
codes_per_row = 1 << cb->xbits[i];
|
|
not_last_row = (i != cb->num_rows - 1);
|
|
prefix = ((1 << i) - 1) << (cb->xbits[i] + not_last_row);
|
|
|
|
for (j = 0; j < codes_per_row; j++) {
|
|
if (pos >= 256) /* Some Indeo5 codebooks can have more than 256 */
|
|
break; /* elements, but only 256 codes are allowed! */
|
|
|
|
bits[pos] = i + cb->xbits[i] + not_last_row;
|
|
if (bits[pos] > IVI_VLC_BITS)
|
|
return AVERROR_INVALIDDATA; /* invalid descriptor */
|
|
|
|
codewords[pos] = prefix | j;
|
|
if (!bits[pos])
|
|
bits[pos] = 1;
|
|
|
|
pos++;
|
|
}//for j
|
|
}//for i
|
|
|
|
/* number of codewords = pos */
|
|
return vlc_init(vlc, IVI_VLC_BITS, pos, bits, 1, 1, codewords, 2, 2,
|
|
(flag ? VLC_INIT_USE_STATIC : 0) | VLC_INIT_OUTPUT_LE);
|
|
}
|
|
|
|
static av_cold void ivi_init_static_vlc(void)
|
|
{
|
|
int i;
|
|
static VLCElem table_data[8192 * 16];
|
|
|
|
for (i = 0; i < 8; i++) {
|
|
ivi_mb_vlc_tabs[i].table = table_data + i * 2 * 8192;
|
|
ivi_mb_vlc_tabs[i].table_allocated = 8192;
|
|
ivi_create_huff_from_desc(&ivi_mb_huff_desc[i],
|
|
&ivi_mb_vlc_tabs[i], 1);
|
|
ivi_blk_vlc_tabs[i].table = table_data + (i * 2 + 1) * 8192;
|
|
ivi_blk_vlc_tabs[i].table_allocated = 8192;
|
|
ivi_create_huff_from_desc(&ivi_blk_huff_desc[i],
|
|
&ivi_blk_vlc_tabs[i], 1);
|
|
}
|
|
}
|
|
|
|
av_cold void ff_ivi_init_static_vlc(void)
|
|
{
|
|
static AVOnce init_static_once = AV_ONCE_INIT;
|
|
ff_thread_once(&init_static_once, ivi_init_static_vlc);
|
|
}
|
|
|
|
/*
|
|
* Copy huffman codebook descriptors.
|
|
*
|
|
* @param[out] dst ptr to the destination descriptor
|
|
* @param[in] src ptr to the source descriptor
|
|
*/
|
|
static void ivi_huff_desc_copy(IVIHuffDesc *dst, const IVIHuffDesc *src)
|
|
{
|
|
dst->num_rows = src->num_rows;
|
|
memcpy(dst->xbits, src->xbits, src->num_rows);
|
|
}
|
|
|
|
/*
|
|
* Compare two huffman codebook descriptors.
|
|
*
|
|
* @param[in] desc1 ptr to the 1st descriptor to compare
|
|
* @param[in] desc2 ptr to the 2nd descriptor to compare
|
|
* @return comparison result: 0 - equal, 1 - not equal
|
|
*/
|
|
static int ivi_huff_desc_cmp(const IVIHuffDesc *desc1,
|
|
const IVIHuffDesc *desc2)
|
|
{
|
|
return desc1->num_rows != desc2->num_rows ||
|
|
memcmp(desc1->xbits, desc2->xbits, desc1->num_rows);
|
|
}
|
|
|
|
int ff_ivi_dec_huff_desc(GetBitContext *gb, int desc_coded, int which_tab,
|
|
IVIHuffTab *huff_tab, AVCodecContext *avctx)
|
|
{
|
|
int i, result;
|
|
IVIHuffDesc new_huff;
|
|
|
|
if (!desc_coded) {
|
|
/* select default table */
|
|
huff_tab->tab = (which_tab) ? &ivi_blk_vlc_tabs[7]
|
|
: &ivi_mb_vlc_tabs [7];
|
|
return 0;
|
|
}
|
|
|
|
huff_tab->tab_sel = get_bits(gb, 3);
|
|
if (huff_tab->tab_sel == 7) {
|
|
/* custom huffman table (explicitly encoded) */
|
|
new_huff.num_rows = get_bits(gb, 4);
|
|
if (!new_huff.num_rows) {
|
|
av_log(avctx, AV_LOG_ERROR, "Empty custom Huffman table!\n");
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
|
|
for (i = 0; i < new_huff.num_rows; i++)
|
|
new_huff.xbits[i] = get_bits(gb, 4);
|
|
|
|
/* Have we got the same custom table? Rebuild if not. */
|
|
if (ivi_huff_desc_cmp(&new_huff, &huff_tab->cust_desc) || !huff_tab->cust_tab.table) {
|
|
ivi_huff_desc_copy(&huff_tab->cust_desc, &new_huff);
|
|
|
|
if (huff_tab->cust_tab.table)
|
|
ff_vlc_free(&huff_tab->cust_tab);
|
|
result = ivi_create_huff_from_desc(&huff_tab->cust_desc,
|
|
&huff_tab->cust_tab, 0);
|
|
if (result) {
|
|
// reset faulty description
|
|
huff_tab->cust_desc.num_rows = 0;
|
|
av_log(avctx, AV_LOG_ERROR,
|
|
"Error while initializing custom vlc table!\n");
|
|
return result;
|
|
}
|
|
}
|
|
huff_tab->tab = &huff_tab->cust_tab;
|
|
} else {
|
|
/* select one of predefined tables */
|
|
huff_tab->tab = (which_tab) ? &ivi_blk_vlc_tabs[huff_tab->tab_sel]
|
|
: &ivi_mb_vlc_tabs [huff_tab->tab_sel];
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Free planes, bands and macroblocks buffers.
|
|
*
|
|
* @param[in] planes pointer to the array of the plane descriptors
|
|
*/
|
|
static av_cold void ivi_free_buffers(IVIPlaneDesc *planes)
|
|
{
|
|
int p, b, t;
|
|
|
|
for (p = 0; p < 3; p++) {
|
|
if (planes[p].bands) {
|
|
for (b = 0; b < planes[p].num_bands; b++) {
|
|
IVIBandDesc *band = &planes[p].bands[b];
|
|
av_freep(&band->bufs[0]);
|
|
av_freep(&band->bufs[1]);
|
|
av_freep(&band->bufs[2]);
|
|
av_freep(&band->bufs[3]);
|
|
|
|
if (band->blk_vlc.cust_tab.table)
|
|
ff_vlc_free(&band->blk_vlc.cust_tab);
|
|
for (t = 0; t < band->num_tiles; t++)
|
|
av_freep(&band->tiles[t].mbs);
|
|
av_freep(&band->tiles);
|
|
}
|
|
}
|
|
av_freep(&planes[p].bands);
|
|
planes[p].num_bands = 0;
|
|
}
|
|
}
|
|
|
|
av_cold int ff_ivi_init_planes(AVCodecContext *avctx, IVIPlaneDesc *planes, const IVIPicConfig *cfg,
|
|
int is_indeo4)
|
|
{
|
|
int p, b;
|
|
uint32_t b_width, b_height, align_fac, width_aligned,
|
|
height_aligned, buf_size;
|
|
IVIBandDesc *band;
|
|
|
|
ivi_free_buffers(planes);
|
|
|
|
if (av_image_check_size2(cfg->pic_width, cfg->pic_height, avctx->max_pixels, AV_PIX_FMT_YUV410P, 0, avctx) < 0 ||
|
|
cfg->luma_bands < 1 || cfg->chroma_bands < 1)
|
|
return AVERROR_INVALIDDATA;
|
|
|
|
/* fill in the descriptor of the luminance plane */
|
|
planes[0].width = cfg->pic_width;
|
|
planes[0].height = cfg->pic_height;
|
|
planes[0].num_bands = cfg->luma_bands;
|
|
|
|
/* fill in the descriptors of the chrominance planes */
|
|
planes[1].width = planes[2].width = (cfg->pic_width + 3) >> 2;
|
|
planes[1].height = planes[2].height = (cfg->pic_height + 3) >> 2;
|
|
planes[1].num_bands = planes[2].num_bands = cfg->chroma_bands;
|
|
|
|
for (p = 0; p < 3; p++) {
|
|
planes[p].bands = av_calloc(planes[p].num_bands, sizeof(*planes[p].bands));
|
|
if (!planes[p].bands)
|
|
return AVERROR(ENOMEM);
|
|
|
|
/* select band dimensions: if there is only one band then it
|
|
* has the full size, if there are several bands each of them
|
|
* has only half size */
|
|
b_width = planes[p].num_bands == 1 ? planes[p].width
|
|
: (planes[p].width + 1) >> 1;
|
|
b_height = planes[p].num_bands == 1 ? planes[p].height
|
|
: (planes[p].height + 1) >> 1;
|
|
|
|
/* luma band buffers will be aligned on 16x16 (max macroblock size) */
|
|
/* chroma band buffers will be aligned on 8x8 (max macroblock size) */
|
|
align_fac = p ? 8 : 16;
|
|
width_aligned = FFALIGN(b_width , align_fac);
|
|
height_aligned = FFALIGN(b_height, align_fac);
|
|
buf_size = width_aligned * height_aligned * sizeof(int16_t);
|
|
|
|
for (b = 0; b < planes[p].num_bands; b++) {
|
|
band = &planes[p].bands[b]; /* select appropriate plane/band */
|
|
band->plane = p;
|
|
band->band_num = b;
|
|
band->width = b_width;
|
|
band->height = b_height;
|
|
band->pitch = width_aligned;
|
|
band->aheight = height_aligned;
|
|
av_assert0(!band->bufs[0] && !band->bufs[1] &&
|
|
!band->bufs[2] && !band->bufs[3]);
|
|
band->bufsize = buf_size/2;
|
|
av_assert0(buf_size % 2 == 0);
|
|
|
|
/* reset custom vlc */
|
|
planes[p].bands[0].blk_vlc.cust_desc.num_rows = 0;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int ivi_init_tiles(const IVIBandDesc *band, IVITile *ref_tile,
|
|
int p, int b, int t_height, int t_width)
|
|
{
|
|
int x, y;
|
|
IVITile *tile = band->tiles;
|
|
|
|
for (y = 0; y < band->height; y += t_height) {
|
|
for (x = 0; x < band->width; x += t_width) {
|
|
tile->xpos = x;
|
|
tile->ypos = y;
|
|
tile->mb_size = band->mb_size;
|
|
tile->width = FFMIN(band->width - x, t_width);
|
|
tile->height = FFMIN(band->height - y, t_height);
|
|
tile->is_empty = tile->data_size = 0;
|
|
/* calculate number of macroblocks */
|
|
tile->num_MBs = IVI_MBs_PER_TILE(tile->width, tile->height,
|
|
band->mb_size);
|
|
|
|
av_freep(&tile->mbs);
|
|
tile->mbs = av_calloc(tile->num_MBs, sizeof(*tile->mbs));
|
|
if (!tile->mbs)
|
|
return AVERROR(ENOMEM);
|
|
|
|
tile->ref_mbs = 0;
|
|
if (p || b) {
|
|
if (tile->num_MBs != ref_tile->num_MBs) {
|
|
av_log(NULL, AV_LOG_DEBUG, "ref_tile mismatch\n");
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
tile->ref_mbs = ref_tile->mbs;
|
|
ref_tile++;
|
|
}
|
|
tile++;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
av_cold int ff_ivi_init_tiles(IVIPlaneDesc *planes,
|
|
int tile_width, int tile_height)
|
|
{
|
|
int p, b, x_tiles, y_tiles, t_width, t_height, ret;
|
|
IVIBandDesc *band;
|
|
|
|
for (p = 0; p < 3; p++) {
|
|
t_width = !p ? tile_width : (tile_width + 3) >> 2;
|
|
t_height = !p ? tile_height : (tile_height + 3) >> 2;
|
|
|
|
if (!p && planes[0].num_bands == 4) {
|
|
if (t_width % 2 || t_height % 2) {
|
|
avpriv_request_sample(NULL, "Odd tiles");
|
|
return AVERROR_PATCHWELCOME;
|
|
}
|
|
t_width >>= 1;
|
|
t_height >>= 1;
|
|
}
|
|
if(t_width<=0 || t_height<=0)
|
|
return AVERROR(EINVAL);
|
|
|
|
for (b = 0; b < planes[p].num_bands; b++) {
|
|
band = &planes[p].bands[b];
|
|
|
|
if (band->tiles) {
|
|
int t;
|
|
for (t = 0; t < band->num_tiles; t++) {
|
|
av_freep(&band->tiles[t].mbs);
|
|
}
|
|
}
|
|
|
|
x_tiles = IVI_NUM_TILES(band->width, t_width);
|
|
y_tiles = IVI_NUM_TILES(band->height, t_height);
|
|
band->num_tiles = x_tiles * y_tiles;
|
|
|
|
av_freep(&band->tiles);
|
|
band->tiles = av_calloc(band->num_tiles, sizeof(*band->tiles));
|
|
if (!band->tiles) {
|
|
band->num_tiles = 0;
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
|
|
/* use the first luma band as reference for motion vectors
|
|
* and quant */
|
|
ret = ivi_init_tiles(band, planes[0].bands[0].tiles,
|
|
p, b, t_height, t_width);
|
|
if (ret < 0)
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Decode size of the tile data.
|
|
* The size is stored as a variable-length field having the following format:
|
|
* if (tile_data_size < 255) than this field is only one byte long
|
|
* if (tile_data_size >= 255) than this field four is byte long: 0xFF X1 X2 X3
|
|
* where X1-X3 is size of the tile data
|
|
*
|
|
* @param[in,out] gb the GetBit context
|
|
* @return size of the tile data in bytes
|
|
*/
|
|
static int ivi_dec_tile_data_size(GetBitContext *gb)
|
|
{
|
|
int len;
|
|
|
|
len = 0;
|
|
if (get_bits1(gb)) {
|
|
len = get_bits(gb, 8);
|
|
if (len == 255)
|
|
len = get_bits(gb, 24);
|
|
}
|
|
|
|
/* align the bitstream reader on the byte boundary */
|
|
align_get_bits(gb);
|
|
|
|
return len;
|
|
}
|
|
|
|
static int ivi_dc_transform(const IVIBandDesc *band, int *prev_dc, int buf_offs,
|
|
int blk_size)
|
|
{
|
|
band->dc_transform(prev_dc, band->buf + buf_offs,
|
|
band->pitch, blk_size);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int ivi_decode_coded_blocks(GetBitContext *gb, const IVIBandDesc *band,
|
|
ivi_mc_func mc, ivi_mc_avg_func mc_avg,
|
|
int mv_x, int mv_y,
|
|
int mv_x2, int mv_y2,
|
|
int *prev_dc, int is_intra,
|
|
int mc_type, int mc_type2,
|
|
uint32_t quant, int offs,
|
|
AVCodecContext *avctx)
|
|
{
|
|
const uint16_t *base_tab = is_intra ? band->intra_base : band->inter_base;
|
|
RVMapDesc *rvmap = band->rv_map;
|
|
uint8_t col_flags[8];
|
|
int32_t trvec[64];
|
|
uint32_t sym = 0, lo, hi, q;
|
|
int pos, run, val;
|
|
int blk_size = band->blk_size;
|
|
int num_coeffs = blk_size * blk_size;
|
|
int col_mask = blk_size - 1;
|
|
int scan_pos = -1;
|
|
int min_size = band->pitch * (band->transform_size - 1) +
|
|
band->transform_size;
|
|
int buf_size = band->pitch * band->aheight - offs;
|
|
|
|
if (min_size > buf_size)
|
|
return AVERROR_INVALIDDATA;
|
|
|
|
if (!band->scan) {
|
|
av_log(avctx, AV_LOG_ERROR, "Scan pattern is not set.\n");
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
|
|
/* zero transform vector */
|
|
memset(trvec, 0, num_coeffs * sizeof(trvec[0]));
|
|
/* zero column flags */
|
|
memset(col_flags, 0, sizeof(col_flags));
|
|
while (scan_pos <= num_coeffs) {
|
|
sym = get_vlc2(gb, band->blk_vlc.tab->table,
|
|
IVI_VLC_BITS, 1);
|
|
if (sym == rvmap->eob_sym)
|
|
break; /* End of block */
|
|
|
|
/* Escape - run/val explicitly coded using 3 vlc codes */
|
|
if (sym == rvmap->esc_sym) {
|
|
run = get_vlc2(gb, band->blk_vlc.tab->table, IVI_VLC_BITS, 1) + 1;
|
|
lo = get_vlc2(gb, band->blk_vlc.tab->table, IVI_VLC_BITS, 1);
|
|
hi = get_vlc2(gb, band->blk_vlc.tab->table, IVI_VLC_BITS, 1);
|
|
/* merge them and convert into signed val */
|
|
val = IVI_TOSIGNED((hi << 6) | lo);
|
|
} else {
|
|
if (sym >= 256U) {
|
|
av_log(avctx, AV_LOG_ERROR, "Invalid sym encountered: %"PRIu32".\n", sym);
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
run = rvmap->runtab[sym];
|
|
val = rvmap->valtab[sym];
|
|
}
|
|
|
|
/* de-zigzag and dequantize */
|
|
scan_pos += run;
|
|
if (scan_pos >= num_coeffs || scan_pos < 0)
|
|
break;
|
|
pos = band->scan[scan_pos];
|
|
|
|
if (!val)
|
|
ff_dlog(avctx, "Val = 0 encountered!\n");
|
|
|
|
q = (base_tab[pos] * quant) >> 9;
|
|
if (q > 1)
|
|
val = val * q + FFSIGN(val) * (((q ^ 1) - 1) >> 1);
|
|
trvec[pos] = val;
|
|
/* track columns containing non-zero coeffs */
|
|
col_flags[pos & col_mask] |= !!val;
|
|
}
|
|
|
|
if (scan_pos < 0 || scan_pos >= num_coeffs && sym != rvmap->eob_sym)
|
|
return AVERROR_INVALIDDATA; /* corrupt block data */
|
|
|
|
/* undoing DC coeff prediction for intra-blocks */
|
|
if (is_intra && band->is_2d_trans) {
|
|
*prev_dc += trvec[0];
|
|
trvec[0] = *prev_dc;
|
|
col_flags[0] |= !!*prev_dc;
|
|
}
|
|
|
|
if(band->transform_size > band->blk_size){
|
|
av_log(NULL, AV_LOG_ERROR, "Too large transform\n");
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
|
|
/* apply inverse transform */
|
|
band->inv_transform(trvec, band->buf + offs,
|
|
band->pitch, col_flags);
|
|
|
|
/* apply motion compensation */
|
|
if (!is_intra)
|
|
return ivi_mc(band, mc, mc_avg, offs, mv_x, mv_y, mv_x2, mv_y2,
|
|
mc_type, mc_type2);
|
|
|
|
return 0;
|
|
}
|
|
/*
|
|
* Decode block data:
|
|
* extract huffman-coded transform coefficients from the bitstream,
|
|
* dequantize them, apply inverse transform and motion compensation
|
|
* in order to reconstruct the picture.
|
|
*
|
|
* @param[in,out] gb the GetBit context
|
|
* @param[in] band pointer to the band descriptor
|
|
* @param[in] tile pointer to the tile descriptor
|
|
* @return result code: 0 - OK, -1 = error (corrupted blocks data)
|
|
*/
|
|
static int ivi_decode_blocks(GetBitContext *gb, const IVIBandDesc *band,
|
|
IVITile *tile, AVCodecContext *avctx)
|
|
{
|
|
int mbn, blk, num_blocks, blk_size, ret, is_intra;
|
|
int mc_type = 0, mc_type2 = -1;
|
|
int mv_x = 0, mv_y = 0, mv_x2 = 0, mv_y2 = 0;
|
|
int32_t prev_dc;
|
|
uint32_t cbp, quant, buf_offs;
|
|
IVIMbInfo *mb;
|
|
ivi_mc_func mc_with_delta_func, mc_no_delta_func;
|
|
ivi_mc_avg_func mc_avg_with_delta_func, mc_avg_no_delta_func;
|
|
const uint8_t *scale_tab;
|
|
|
|
/* init intra prediction for the DC coefficient */
|
|
prev_dc = 0;
|
|
blk_size = band->blk_size;
|
|
/* number of blocks per mb */
|
|
num_blocks = (band->mb_size != blk_size) ? 4 : 1;
|
|
if (blk_size == 8) {
|
|
mc_with_delta_func = ff_ivi_mc_8x8_delta;
|
|
mc_no_delta_func = ff_ivi_mc_8x8_no_delta;
|
|
mc_avg_with_delta_func = ff_ivi_mc_avg_8x8_delta;
|
|
mc_avg_no_delta_func = ff_ivi_mc_avg_8x8_no_delta;
|
|
} else {
|
|
mc_with_delta_func = ff_ivi_mc_4x4_delta;
|
|
mc_no_delta_func = ff_ivi_mc_4x4_no_delta;
|
|
mc_avg_with_delta_func = ff_ivi_mc_avg_4x4_delta;
|
|
mc_avg_no_delta_func = ff_ivi_mc_avg_4x4_no_delta;
|
|
}
|
|
|
|
for (mbn = 0, mb = tile->mbs; mbn < tile->num_MBs; mb++, mbn++) {
|
|
is_intra = !mb->type;
|
|
cbp = mb->cbp;
|
|
buf_offs = mb->buf_offs;
|
|
|
|
quant = band->glob_quant + mb->q_delta;
|
|
if (avctx->codec_id == AV_CODEC_ID_INDEO4)
|
|
quant = av_clip_uintp2(quant, 5);
|
|
else
|
|
quant = av_clip(quant, 0, 23);
|
|
|
|
scale_tab = is_intra ? band->intra_scale : band->inter_scale;
|
|
if (scale_tab)
|
|
quant = scale_tab[quant];
|
|
|
|
if (!is_intra) {
|
|
mv_x = mb->mv_x;
|
|
mv_y = mb->mv_y;
|
|
mv_x2 = mb->b_mv_x;
|
|
mv_y2 = mb->b_mv_y;
|
|
if (band->is_halfpel) {
|
|
mc_type = ((mv_y & 1) << 1) | (mv_x & 1);
|
|
mc_type2 = ((mv_y2 & 1) << 1) | (mv_x2 & 1);
|
|
mv_x >>= 1;
|
|
mv_y >>= 1;
|
|
mv_x2 >>= 1;
|
|
mv_y2 >>= 1; /* convert halfpel vectors into fullpel ones */
|
|
}
|
|
if (mb->type == 2)
|
|
mc_type = -1;
|
|
if (mb->type != 2 && mb->type != 3)
|
|
mc_type2 = -1;
|
|
if (mb->type) {
|
|
int dmv_x, dmv_y, cx, cy;
|
|
|
|
dmv_x = mb->mv_x >> band->is_halfpel;
|
|
dmv_y = mb->mv_y >> band->is_halfpel;
|
|
cx = mb->mv_x & band->is_halfpel;
|
|
cy = mb->mv_y & band->is_halfpel;
|
|
|
|
if (mb->xpos + dmv_x < 0 ||
|
|
mb->xpos + dmv_x + band->mb_size + cx > band->pitch ||
|
|
mb->ypos + dmv_y < 0 ||
|
|
mb->ypos + dmv_y + band->mb_size + cy > band->aheight) {
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
}
|
|
if (mb->type == 2 || mb->type == 3) {
|
|
int dmv_x, dmv_y, cx, cy;
|
|
|
|
dmv_x = mb->b_mv_x >> band->is_halfpel;
|
|
dmv_y = mb->b_mv_y >> band->is_halfpel;
|
|
cx = mb->b_mv_x & band->is_halfpel;
|
|
cy = mb->b_mv_y & band->is_halfpel;
|
|
|
|
if (mb->xpos + dmv_x < 0 ||
|
|
mb->xpos + dmv_x + band->mb_size + cx > band->pitch ||
|
|
mb->ypos + dmv_y < 0 ||
|
|
mb->ypos + dmv_y + band->mb_size + cy > band->aheight) {
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
}
|
|
}
|
|
|
|
for (blk = 0; blk < num_blocks; blk++) {
|
|
/* adjust block position in the buffer according to its number */
|
|
if (blk & 1) {
|
|
buf_offs += blk_size;
|
|
} else if (blk == 2) {
|
|
buf_offs -= blk_size;
|
|
buf_offs += blk_size * band->pitch;
|
|
}
|
|
|
|
if (cbp & 1) { /* block coded ? */
|
|
ret = ivi_decode_coded_blocks(gb, band, mc_with_delta_func,
|
|
mc_avg_with_delta_func,
|
|
mv_x, mv_y, mv_x2, mv_y2,
|
|
&prev_dc, is_intra,
|
|
mc_type, mc_type2, quant,
|
|
buf_offs, avctx);
|
|
if (ret < 0)
|
|
return ret;
|
|
} else {
|
|
int buf_size = band->pitch * band->aheight - buf_offs;
|
|
int min_size = (blk_size - 1) * band->pitch + blk_size;
|
|
|
|
if (min_size > buf_size)
|
|
return AVERROR_INVALIDDATA;
|
|
/* block not coded */
|
|
/* for intra blocks apply the dc slant transform */
|
|
/* for inter - perform the motion compensation without delta */
|
|
if (is_intra) {
|
|
ret = ivi_dc_transform(band, &prev_dc, buf_offs, blk_size);
|
|
if (ret < 0)
|
|
return ret;
|
|
} else {
|
|
ret = ivi_mc(band, mc_no_delta_func, mc_avg_no_delta_func,
|
|
buf_offs, mv_x, mv_y, mv_x2, mv_y2,
|
|
mc_type, mc_type2);
|
|
if (ret < 0)
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
cbp >>= 1;
|
|
}// for blk
|
|
}// for mbn
|
|
|
|
align_get_bits(gb);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* Handle empty tiles by performing data copying and motion
|
|
* compensation respectively.
|
|
*
|
|
* @param[in] avctx ptr to the AVCodecContext
|
|
* @param[in] band pointer to the band descriptor
|
|
* @param[in] tile pointer to the tile descriptor
|
|
* @param[in] mv_scale scaling factor for motion vectors
|
|
*/
|
|
static int ivi_process_empty_tile(AVCodecContext *avctx, const IVIBandDesc *band,
|
|
IVITile *tile, int32_t mv_scale)
|
|
{
|
|
int x, y, need_mc, mbn, blk, num_blocks, mv_x, mv_y, mc_type;
|
|
int offs, mb_offset, row_offset, ret;
|
|
IVIMbInfo *mb, *ref_mb;
|
|
const int16_t *src;
|
|
int16_t *dst;
|
|
ivi_mc_func mc_no_delta_func;
|
|
int clear_first = !band->qdelta_present && !band->plane && !band->band_num;
|
|
int mb_size = band->mb_size;
|
|
int xend = tile->xpos + tile->width;
|
|
int is_halfpel = band->is_halfpel;
|
|
int pitch = band->pitch;
|
|
|
|
if (tile->num_MBs != IVI_MBs_PER_TILE(tile->width, tile->height, mb_size)) {
|
|
av_log(avctx, AV_LOG_ERROR, "Allocated tile size %d mismatches "
|
|
"parameters %d in ivi_process_empty_tile()\n",
|
|
tile->num_MBs, IVI_MBs_PER_TILE(tile->width, tile->height, mb_size));
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
|
|
offs = tile->ypos * pitch + tile->xpos;
|
|
mb = tile->mbs;
|
|
ref_mb = tile->ref_mbs;
|
|
row_offset = mb_size * pitch;
|
|
need_mc = 0; /* reset the mc tracking flag */
|
|
|
|
for (y = tile->ypos; y < (tile->ypos + tile->height); y += mb_size) {
|
|
mb_offset = offs;
|
|
|
|
for (x = tile->xpos; x < xend; x += mb_size) {
|
|
mb->xpos = x;
|
|
mb->ypos = y;
|
|
mb->buf_offs = mb_offset;
|
|
|
|
mb->type = 1; /* set the macroblocks type = INTER */
|
|
mb->cbp = 0; /* all blocks are empty */
|
|
|
|
if (clear_first) {
|
|
mb->q_delta = band->glob_quant;
|
|
mb->mv_x = 0;
|
|
mb->mv_y = 0;
|
|
}
|
|
|
|
if (ref_mb) {
|
|
if (band->inherit_qdelta)
|
|
mb->q_delta = ref_mb->q_delta;
|
|
|
|
if (band->inherit_mv) {
|
|
/* motion vector inheritance */
|
|
if (mv_scale) {
|
|
mb->mv_x = ivi_scale_mv(ref_mb->mv_x, mv_scale);
|
|
mb->mv_y = ivi_scale_mv(ref_mb->mv_y, mv_scale);
|
|
} else {
|
|
mb->mv_x = ref_mb->mv_x;
|
|
mb->mv_y = ref_mb->mv_y;
|
|
}
|
|
need_mc |= mb->mv_x || mb->mv_y; /* tracking non-zero motion vectors */
|
|
{
|
|
int dmv_x, dmv_y, cx, cy;
|
|
|
|
dmv_x = mb->mv_x >> is_halfpel;
|
|
dmv_y = mb->mv_y >> is_halfpel;
|
|
cx = mb->mv_x & is_halfpel;
|
|
cy = mb->mv_y & is_halfpel;
|
|
|
|
if ( mb->xpos + dmv_x < 0
|
|
|| mb->xpos + dmv_x + mb_size + cx > pitch
|
|
|| mb->ypos + dmv_y < 0
|
|
|| mb->ypos + dmv_y + mb_size + cy > band->aheight) {
|
|
av_log(avctx, AV_LOG_ERROR, "MV out of bounds\n");
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
}
|
|
}
|
|
ref_mb++;
|
|
}
|
|
|
|
mb++;
|
|
mb_offset += mb_size;
|
|
} // for x
|
|
offs += row_offset;
|
|
} // for y
|
|
|
|
if (band->inherit_mv && need_mc) { /* apply motion compensation if there is at least one non-zero motion vector */
|
|
num_blocks = (mb_size != band->blk_size) ? 4 : 1; /* number of blocks per mb */
|
|
mc_no_delta_func = (band->blk_size == 8) ? ff_ivi_mc_8x8_no_delta
|
|
: ff_ivi_mc_4x4_no_delta;
|
|
|
|
for (mbn = 0, mb = tile->mbs; mbn < tile->num_MBs; mb++, mbn++) {
|
|
mv_x = mb->mv_x;
|
|
mv_y = mb->mv_y;
|
|
if (!band->is_halfpel) {
|
|
mc_type = 0; /* we have only fullpel vectors */
|
|
} else {
|
|
mc_type = ((mv_y & 1) << 1) | (mv_x & 1);
|
|
mv_x >>= 1;
|
|
mv_y >>= 1; /* convert halfpel vectors into fullpel ones */
|
|
}
|
|
|
|
for (blk = 0; blk < num_blocks; blk++) {
|
|
/* adjust block position in the buffer according with its number */
|
|
offs = mb->buf_offs + band->blk_size * ((blk & 1) + !!(blk & 2) * pitch);
|
|
ret = ivi_mc(band, mc_no_delta_func, 0, offs,
|
|
mv_x, mv_y, 0, 0, mc_type, -1);
|
|
if (ret < 0)
|
|
return ret;
|
|
}
|
|
}
|
|
} else {
|
|
/* copy data from the reference tile into the current one */
|
|
src = band->ref_buf + tile->ypos * pitch + tile->xpos;
|
|
dst = band->buf + tile->ypos * pitch + tile->xpos;
|
|
for (y = 0; y < tile->height; y++) {
|
|
memcpy(dst, src, tile->width*sizeof(band->buf[0]));
|
|
src += pitch;
|
|
dst += pitch;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
#ifdef DEBUG
|
|
static uint16_t ivi_calc_band_checksum(const IVIBandDesc *band)
|
|
{
|
|
int x, y;
|
|
int16_t *src, checksum;
|
|
|
|
src = band->buf;
|
|
checksum = 0;
|
|
|
|
for (y = 0; y < band->height; src += band->pitch, y++)
|
|
for (x = 0; x < band->width; x++)
|
|
checksum += src[x];
|
|
|
|
return checksum;
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* Convert and output the current plane.
|
|
* This conversion is done by adding back the bias value of 128
|
|
* (subtracted in the encoder) and clipping the result.
|
|
*
|
|
* @param[in] plane pointer to the descriptor of the plane being processed
|
|
* @param[out] dst pointer to the buffer receiving converted pixels
|
|
* @param[in] dst_pitch pitch for moving to the next y line
|
|
*/
|
|
static void ivi_output_plane(IVIPlaneDesc *plane, uint8_t *dst, ptrdiff_t dst_pitch)
|
|
{
|
|
int x, y;
|
|
const int16_t *src = plane->bands[0].buf;
|
|
ptrdiff_t pitch = plane->bands[0].pitch;
|
|
|
|
if (!src)
|
|
return;
|
|
|
|
for (y = 0; y < plane->height; y++) {
|
|
int m = 0;
|
|
int w = plane->width;
|
|
for (x = 0; x < w; x++) {
|
|
int t = src[x] + 128;
|
|
dst[x] = t;
|
|
m |= t;
|
|
}
|
|
if (m & ~255)
|
|
for (x = 0; x < w; x++)
|
|
dst[x] = av_clip_uint8(src[x] + 128);
|
|
src += pitch;
|
|
dst += dst_pitch;
|
|
}
|
|
}
|
|
|
|
static void *prepare_buf(IVI45DecContext *ctx, IVIBandDesc *band, int i)
|
|
{
|
|
if (ctx->pic_conf.luma_bands <= 1 && i == 2)
|
|
return NULL;
|
|
if (!band->bufs[i])
|
|
band->bufs[i] = av_mallocz(2 * band->bufsize);
|
|
return band->bufs[i];
|
|
}
|
|
|
|
/**
|
|
* Decode an Indeo 4 or 5 band.
|
|
*
|
|
* @param[in,out] ctx ptr to the decoder context
|
|
* @param[in,out] band ptr to the band descriptor
|
|
* @param[in] avctx ptr to the AVCodecContext
|
|
* @return result code: 0 = OK, -1 = error
|
|
*/
|
|
static int decode_band(IVI45DecContext *ctx,
|
|
IVIBandDesc *band, AVCodecContext *avctx)
|
|
{
|
|
int result, i, t, idx1, idx2, pos;
|
|
IVITile *tile;
|
|
|
|
band->buf = prepare_buf(ctx, band, ctx->dst_buf);
|
|
if (!band->buf) {
|
|
av_log(avctx, AV_LOG_ERROR, "Band buffer points to no data!\n");
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
if (ctx->is_indeo4 && ctx->frame_type == IVI4_FRAMETYPE_BIDIR) {
|
|
band->ref_buf = prepare_buf(ctx, band, ctx->b_ref_buf);
|
|
band->b_ref_buf = prepare_buf(ctx, band, ctx->ref_buf);
|
|
if (!band->b_ref_buf)
|
|
return AVERROR(ENOMEM);
|
|
} else {
|
|
band->ref_buf = prepare_buf(ctx, band, ctx->ref_buf);
|
|
band->b_ref_buf = 0;
|
|
}
|
|
if (!band->ref_buf)
|
|
return AVERROR(ENOMEM);
|
|
band->data_ptr = ctx->frame_data + (get_bits_count(&ctx->gb) >> 3);
|
|
|
|
result = ctx->decode_band_hdr(ctx, band, avctx);
|
|
if (result) {
|
|
av_log(avctx, AV_LOG_ERROR, "Error while decoding band header: %d\n",
|
|
result);
|
|
return result;
|
|
}
|
|
|
|
if (band->is_empty) {
|
|
av_log(avctx, AV_LOG_ERROR, "Empty band encountered!\n");
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
|
|
band->rv_map = &ctx->rvmap_tabs[band->rvmap_sel];
|
|
|
|
/* apply corrections to the selected rvmap table if present */
|
|
for (i = 0; i < band->num_corr; i++) {
|
|
idx1 = band->corr[i * 2];
|
|
idx2 = band->corr[i * 2 + 1];
|
|
FFSWAP(uint8_t, band->rv_map->runtab[idx1], band->rv_map->runtab[idx2]);
|
|
FFSWAP(int16_t, band->rv_map->valtab[idx1], band->rv_map->valtab[idx2]);
|
|
if (idx1 == band->rv_map->eob_sym || idx2 == band->rv_map->eob_sym)
|
|
band->rv_map->eob_sym ^= idx1 ^ idx2;
|
|
if (idx1 == band->rv_map->esc_sym || idx2 == band->rv_map->esc_sym)
|
|
band->rv_map->esc_sym ^= idx1 ^ idx2;
|
|
}
|
|
|
|
pos = get_bits_count(&ctx->gb);
|
|
|
|
for (t = 0; t < band->num_tiles; t++) {
|
|
tile = &band->tiles[t];
|
|
|
|
if (tile->mb_size != band->mb_size) {
|
|
av_log(avctx, AV_LOG_ERROR, "MB sizes mismatch: %d vs. %d\n",
|
|
band->mb_size, tile->mb_size);
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
tile->is_empty = get_bits1(&ctx->gb);
|
|
if (tile->is_empty) {
|
|
result = ivi_process_empty_tile(avctx, band, tile,
|
|
(ctx->planes[0].bands[0].mb_size >> 3) - (band->mb_size >> 3));
|
|
if (result < 0)
|
|
break;
|
|
ff_dlog(avctx, "Empty tile encountered!\n");
|
|
} else {
|
|
tile->data_size = ivi_dec_tile_data_size(&ctx->gb);
|
|
if (!tile->data_size) {
|
|
av_log(avctx, AV_LOG_ERROR, "Tile data size is zero!\n");
|
|
result = AVERROR_INVALIDDATA;
|
|
break;
|
|
}
|
|
|
|
result = ctx->decode_mb_info(ctx, band, tile, avctx);
|
|
if (result < 0)
|
|
break;
|
|
|
|
result = ivi_decode_blocks(&ctx->gb, band, tile, avctx);
|
|
if (result < 0) {
|
|
av_log(avctx, AV_LOG_ERROR,
|
|
"Corrupted tile data encountered!\n");
|
|
break;
|
|
}
|
|
|
|
if (((get_bits_count(&ctx->gb) - pos) >> 3) != tile->data_size) {
|
|
av_log(avctx, AV_LOG_ERROR,
|
|
"Tile data_size mismatch!\n");
|
|
result = AVERROR_INVALIDDATA;
|
|
break;
|
|
}
|
|
|
|
pos += tile->data_size << 3; // skip to next tile
|
|
}
|
|
}
|
|
|
|
/* restore the selected rvmap table by applying its corrections in
|
|
* reverse order */
|
|
for (i = band->num_corr-1; i >= 0; i--) {
|
|
idx1 = band->corr[i*2];
|
|
idx2 = band->corr[i*2+1];
|
|
FFSWAP(uint8_t, band->rv_map->runtab[idx1], band->rv_map->runtab[idx2]);
|
|
FFSWAP(int16_t, band->rv_map->valtab[idx1], band->rv_map->valtab[idx2]);
|
|
if (idx1 == band->rv_map->eob_sym || idx2 == band->rv_map->eob_sym)
|
|
band->rv_map->eob_sym ^= idx1 ^ idx2;
|
|
if (idx1 == band->rv_map->esc_sym || idx2 == band->rv_map->esc_sym)
|
|
band->rv_map->esc_sym ^= idx1 ^ idx2;
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
if (band->checksum_present) {
|
|
uint16_t chksum = ivi_calc_band_checksum(band);
|
|
if (chksum != band->checksum) {
|
|
av_log(avctx, AV_LOG_ERROR,
|
|
"Band checksum mismatch! Plane %d, band %d, "
|
|
"received: %"PRIx32", calculated: %"PRIx16"\n",
|
|
band->plane, band->band_num, band->checksum, chksum);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
align_get_bits(&ctx->gb);
|
|
|
|
return result;
|
|
}
|
|
|
|
int ff_ivi_decode_frame(AVCodecContext *avctx, AVFrame *frame,
|
|
int *got_frame, AVPacket *avpkt)
|
|
{
|
|
IVI45DecContext *ctx = avctx->priv_data;
|
|
const uint8_t *buf = avpkt->data;
|
|
int buf_size = avpkt->size;
|
|
int result, p, b;
|
|
|
|
result = init_get_bits8(&ctx->gb, buf, buf_size);
|
|
if (result < 0)
|
|
return result;
|
|
ctx->frame_data = buf;
|
|
ctx->frame_size = buf_size;
|
|
|
|
result = ctx->decode_pic_hdr(ctx, avctx);
|
|
if (result) {
|
|
av_log(avctx, AV_LOG_ERROR,
|
|
"Error while decoding picture header: %d\n", result);
|
|
return result;
|
|
}
|
|
if (ctx->gop_invalid)
|
|
return AVERROR_INVALIDDATA;
|
|
|
|
if (ctx->is_indeo4 && ctx->frame_type == IVI4_FRAMETYPE_NULL_LAST) {
|
|
if (ctx->got_p_frame) {
|
|
av_frame_move_ref(frame, ctx->p_frame);
|
|
*got_frame = 1;
|
|
ctx->got_p_frame = 0;
|
|
} else {
|
|
*got_frame = 0;
|
|
}
|
|
return buf_size;
|
|
}
|
|
|
|
if (ctx->gop_flags & IVI5_IS_PROTECTED) {
|
|
avpriv_report_missing_feature(avctx, "Password-protected clip");
|
|
return AVERROR_PATCHWELCOME;
|
|
}
|
|
|
|
if (!ctx->planes[0].bands) {
|
|
av_log(avctx, AV_LOG_ERROR, "Color planes not initialized yet\n");
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
|
|
ctx->switch_buffers(ctx);
|
|
|
|
if (ctx->is_nonnull_frame(ctx)) {
|
|
ctx->buf_invalid[ctx->dst_buf] = 1;
|
|
for (p = 0; p < 3; p++) {
|
|
for (b = 0; b < ctx->planes[p].num_bands; b++) {
|
|
result = decode_band(ctx, &ctx->planes[p].bands[b], avctx);
|
|
if (result < 0) {
|
|
av_log(avctx, AV_LOG_ERROR,
|
|
"Error while decoding band: %d, plane: %d\n", b, p);
|
|
return result;
|
|
}
|
|
}
|
|
}
|
|
ctx->buf_invalid[ctx->dst_buf] = 0;
|
|
} else {
|
|
if (ctx->is_scalable)
|
|
return AVERROR_INVALIDDATA;
|
|
|
|
for (p = 0; p < 3; p++) {
|
|
if (!ctx->planes[p].bands[0].buf)
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
}
|
|
if (ctx->buf_invalid[ctx->dst_buf])
|
|
return -1;
|
|
|
|
if (!ctx->is_nonnull_frame(ctx))
|
|
return buf_size;
|
|
|
|
result = ff_set_dimensions(avctx, ctx->planes[0].width, ctx->planes[0].height);
|
|
if (result < 0)
|
|
return result;
|
|
|
|
if ((result = ff_get_buffer(avctx, frame, 0)) < 0)
|
|
return result;
|
|
|
|
if (ctx->is_scalable) {
|
|
if (ctx->is_indeo4)
|
|
ff_ivi_recompose_haar(&ctx->planes[0], frame->data[0], frame->linesize[0]);
|
|
else
|
|
ff_ivi_recompose53 (&ctx->planes[0], frame->data[0], frame->linesize[0]);
|
|
} else {
|
|
ivi_output_plane(&ctx->planes[0], frame->data[0], frame->linesize[0]);
|
|
}
|
|
|
|
ivi_output_plane(&ctx->planes[2], frame->data[1], frame->linesize[1]);
|
|
ivi_output_plane(&ctx->planes[1], frame->data[2], frame->linesize[2]);
|
|
|
|
*got_frame = 1;
|
|
|
|
/* If the bidirectional mode is enabled, next I and the following P
|
|
* frame will be sent together. Unfortunately the approach below seems
|
|
* to be the only way to handle the B-frames mode.
|
|
* That's exactly the same Intel decoders do.
|
|
*/
|
|
if (ctx->is_indeo4 && ctx->frame_type == IVI4_FRAMETYPE_INTRA) {
|
|
int left;
|
|
|
|
// skip version string
|
|
while (get_bits(&ctx->gb, 8)) {
|
|
if (get_bits_left(&ctx->gb) < 8)
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
left = get_bits_count(&ctx->gb) & 0x18;
|
|
skip_bits_long(&ctx->gb, 64 - left);
|
|
if (get_bits_left(&ctx->gb) > 18 &&
|
|
show_bits(&ctx->gb, 21) == 0xBFFF8) { // syncheader + inter type
|
|
AVPacket pkt;
|
|
pkt.data = avpkt->data + (get_bits_count(&ctx->gb) >> 3);
|
|
pkt.size = get_bits_left(&ctx->gb) >> 3;
|
|
ctx->got_p_frame = 0;
|
|
av_frame_unref(ctx->p_frame);
|
|
ff_ivi_decode_frame(avctx, ctx->p_frame, &ctx->got_p_frame, &pkt);
|
|
}
|
|
}
|
|
|
|
if (ctx->show_indeo4_info) {
|
|
if (ctx->is_scalable)
|
|
av_log(avctx, AV_LOG_DEBUG, "This video uses scalability mode\n");
|
|
if (ctx->uses_tiling)
|
|
av_log(avctx, AV_LOG_DEBUG, "This video uses local decoding\n");
|
|
if (ctx->has_b_frames)
|
|
av_log(avctx, AV_LOG_DEBUG, "This video contains B-frames\n");
|
|
if (ctx->has_transp)
|
|
av_log(avctx, AV_LOG_DEBUG, "Transparency mode is enabled\n");
|
|
if (ctx->uses_haar)
|
|
av_log(avctx, AV_LOG_DEBUG, "This video uses Haar transform\n");
|
|
if (ctx->uses_fullpel)
|
|
av_log(avctx, AV_LOG_DEBUG, "This video uses fullpel motion vectors\n");
|
|
ctx->show_indeo4_info = 0;
|
|
}
|
|
|
|
return buf_size;
|
|
}
|
|
|
|
/**
|
|
* Close Indeo5 decoder and clean up its context.
|
|
*/
|
|
av_cold int ff_ivi_decode_close(AVCodecContext *avctx)
|
|
{
|
|
IVI45DecContext *ctx = avctx->priv_data;
|
|
|
|
ivi_free_buffers(&ctx->planes[0]);
|
|
|
|
if (ctx->mb_vlc.cust_tab.table)
|
|
ff_vlc_free(&ctx->mb_vlc.cust_tab);
|
|
|
|
if (ctx->blk_vlc.cust_tab.table)
|
|
ff_vlc_free(&ctx->blk_vlc.cust_tab);
|
|
|
|
av_frame_free(&ctx->p_frame);
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
/**
|
|
* Scan patterns shared between indeo4 and indeo5
|
|
*/
|
|
const uint8_t ff_ivi_vertical_scan_8x8[64] = {
|
|
0, 8, 16, 24, 32, 40, 48, 56,
|
|
1, 9, 17, 25, 33, 41, 49, 57,
|
|
2, 10, 18, 26, 34, 42, 50, 58,
|
|
3, 11, 19, 27, 35, 43, 51, 59,
|
|
4, 12, 20, 28, 36, 44, 52, 60,
|
|
5, 13, 21, 29, 37, 45, 53, 61,
|
|
6, 14, 22, 30, 38, 46, 54, 62,
|
|
7, 15, 23, 31, 39, 47, 55, 63
|
|
};
|
|
|
|
const uint8_t ff_ivi_horizontal_scan_8x8[64] = {
|
|
0, 1, 2, 3, 4, 5, 6, 7,
|
|
8, 9, 10, 11, 12, 13, 14, 15,
|
|
16, 17, 18, 19, 20, 21, 22, 23,
|
|
24, 25, 26, 27, 28, 29, 30, 31,
|
|
32, 33, 34, 35, 36, 37, 38, 39,
|
|
40, 41, 42, 43, 44, 45, 46, 47,
|
|
48, 49, 50, 51, 52, 53, 54, 55,
|
|
56, 57, 58, 59, 60, 61, 62, 63
|
|
};
|
|
|
|
const uint8_t ff_ivi_direct_scan_4x4[16] = {
|
|
0, 1, 4, 8, 5, 2, 3, 6, 9, 12, 13, 10, 7, 11, 14, 15
|
|
};
|
|
|
|
|
|
/**
|
|
* Run-value (RLE) tables.
|
|
*/
|
|
const RVMapDesc ff_ivi_rvmap_tabs[9] = {
|
|
{ /* MapTab0 */
|
|
5, /* eob_sym */
|
|
2, /* esc_sym */
|
|
/* run table */
|
|
{1, 1, 0, 1, 1, 0, 1, 1, 2, 2, 1, 1, 1, 1, 3, 3,
|
|
1, 1, 2, 2, 1, 1, 4, 4, 1, 1, 1, 1, 2, 2, 5, 5,
|
|
1, 1, 3, 3, 1, 1, 6, 6, 1, 2, 1, 2, 7, 7, 1, 1,
|
|
8, 8, 1, 1, 4, 2, 1, 4, 2, 1, 3, 3, 1, 1, 1, 9,
|
|
9, 1, 2, 1, 2, 1, 5, 5, 1, 1, 10, 10, 1, 1, 3, 3,
|
|
2, 2, 1, 1, 11, 11, 6, 4, 4, 1, 6, 1, 2, 1, 2, 12,
|
|
8, 1, 12, 7, 8, 7, 1, 16, 1, 16, 1, 3, 3, 13, 1, 13,
|
|
2, 2, 1, 15, 1, 5, 14, 15, 1, 5, 14, 1, 17, 8, 17, 8,
|
|
1, 4, 4, 2, 2, 1, 25, 25, 24, 24, 1, 3, 1, 3, 1, 8,
|
|
6, 7, 6, 1, 18, 8, 18, 1, 7, 23, 2, 2, 23, 1, 1, 21,
|
|
22, 9, 9, 22, 19, 1, 21, 5, 19, 5, 1, 33, 20, 33, 20, 8,
|
|
4, 4, 1, 32, 2, 2, 8, 3, 32, 26, 3, 1, 7, 7, 26, 6,
|
|
1, 6, 1, 1, 16, 1, 10, 1, 10, 2, 16, 29, 28, 2, 29, 28,
|
|
1, 27, 5, 8, 5, 27, 1, 8, 3, 7, 3, 31, 41, 31, 1, 41,
|
|
6, 1, 6, 7, 4, 4, 1, 1, 2, 1, 2, 11, 34, 30, 11, 1,
|
|
30, 15, 15, 34, 36, 40, 36, 40, 35, 35, 37, 37, 39, 39, 38, 38},
|
|
|
|
/* value table */
|
|
{ 1, -1, 0, 2, -2, 0, 3, -3, 1, -1, 4, -4, 5, -5, 1, -1,
|
|
6, -6, 2, -2, 7, -7, 1, -1, 8, -8, 9, -9, 3, -3, 1, -1,
|
|
10, -10, 2, -2, 11, -11, 1, -1, 12, 4, -12, -4, 1, -1, 13, -13,
|
|
1, -1, 14, -14, 2, 5, 15, -2, -5, -15, -3, 3, 16, -16, 17, 1,
|
|
-1, -17, 6, 18, -6, -18, 2, -2, 19, -19, 1, -1, 20, -20, 4, -4,
|
|
7, -7, 21, -21, 1, -1, 2, 3, -3, 22, -2, -22, 8, 23, -8, 1,
|
|
2, -23, -1, 2, -2, -2, 24, 1, -24, -1, 25, 5, -5, 1, -25, -1,
|
|
9, -9, 26, 1, -26, 3, 1, -1, 27, -3, -1, -27, 1, 3, -1, -3,
|
|
28, -4, 4, 10, -10, -28, 1, -1, 1, -1, 29, 6, -29, -6, 30, -4,
|
|
3, 3, -3, -30, 1, 4, -1, 31, -3, 1, 11, -11, -1, -31, 32, -1,
|
|
-1, 2, -2, 1, 1, -32, 1, 4, -1, -4, 33, -1, 1, 1, -1, 5,
|
|
5, -5, -33, -1, -12, 12, -5, -7, 1, 1, 7, 34, 4, -4, -1, 4,
|
|
-34, -4, 35, 36, -2, -35, -2, -36, 2, 13, 2, -1, 1, -13, 1, -1,
|
|
37, 1, -5, 6, 5, -1, 38, -6, -8, 5, 8, -1, 1, 1, -37, -1,
|
|
5, 39, -5, -5, 6, -6, -38, -39, -14, 40, 14, 2, 1, 1, -2, -40,
|
|
-1, -2, 2, -1, -1, -1, 1, 1, 1, -1, 1, -1, 1, -1, 1, -1}
|
|
},{
|
|
/* MapTab1 */
|
|
0, /* eob_sym */
|
|
38, /* esc_sym */
|
|
/* run table */
|
|
{0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 8, 6, 8, 7,
|
|
7, 9, 9, 10, 10, 11, 11, 1, 12, 1, 12, 13, 13, 16, 14, 16,
|
|
14, 15, 15, 17, 17, 18, 0, 18, 19, 20, 21, 19, 22, 21, 20, 22,
|
|
25, 24, 2, 25, 24, 23, 23, 2, 26, 28, 26, 28, 29, 27, 29, 27,
|
|
33, 33, 1, 32, 1, 3, 32, 30, 36, 3, 36, 30, 31, 31, 35, 34,
|
|
37, 41, 34, 35, 37, 4, 41, 4, 49, 8, 8, 49, 40, 38, 5, 38,
|
|
40, 39, 5, 39, 42, 43, 42, 7, 57, 6, 43, 44, 6, 50, 7, 44,
|
|
57, 48, 50, 48, 45, 45, 46, 47, 51, 46, 47, 58, 1, 51, 58, 1,
|
|
52, 59, 53, 9, 52, 55, 55, 59, 53, 56, 54, 56, 54, 9, 64, 64,
|
|
60, 63, 60, 63, 61, 62, 61, 62, 2, 10, 2, 10, 11, 1, 11, 13,
|
|
12, 1, 12, 13, 16, 16, 8, 8, 14, 3, 3, 15, 14, 15, 4, 4,
|
|
1, 17, 17, 5, 1, 7, 7, 5, 6, 1, 2, 2, 6, 22, 1, 25,
|
|
21, 22, 8, 24, 1, 21, 25, 24, 8, 18, 18, 23, 9, 20, 23, 33,
|
|
29, 33, 20, 1, 19, 1, 29, 36, 9, 36, 19, 41, 28, 57, 32, 3,
|
|
28, 3, 1, 27, 49, 49, 1, 32, 26, 26, 2, 4, 4, 7, 57, 41,
|
|
2, 7, 10, 5, 37, 16, 10, 27, 8, 8, 13, 16, 37, 13, 1, 5},
|
|
|
|
/* value table */
|
|
{0, 1, -1, 1, -1, 1, -1, 1, -1, 1, -1, 1, 1, -1, -1, 1,
|
|
-1, 1, -1, 1, -1, 1, -1, 2, 1, -2, -1, 1, -1, 1, 1, -1,
|
|
-1, 1, -1, 1, -1, 1, 0, -1, 1, 1, 1, -1, 1, -1, -1, -1,
|
|
1, 1, 2, -1, -1, 1, -1, -2, 1, 1, -1, -1, 1, 1, -1, -1,
|
|
1, -1, 3, 1, -3, 2, -1, 1, 1, -2, -1, -1, -1, 1, 1, 1,
|
|
1, 1, -1, -1, -1, 2, -1, -2, 1, 2, -2, -1, 1, 1, 2, -1,
|
|
-1, 1, -2, -1, 1, 1, -1, 2, 1, 2, -1, 1, -2, -1, -2, -1,
|
|
-1, 1, 1, -1, 1, -1, 1, 1, 1, -1, -1, 1, 4, -1, -1, -4,
|
|
1, 1, 1, 2, -1, -1, 1, -1, -1, 1, -1, -1, 1, -2, 1, -1,
|
|
1, 1, -1, -1, 1, 1, -1, -1, 3, 2, -3, -2, 2, 5, -2, 2,
|
|
2, -5, -2, -2, -2, 2, -3, 3, 2, 3, -3, 2, -2, -2, 3, -3,
|
|
6, 2, -2, 3, -6, 3, -3, -3, 3, 7, -4, 4, -3, 2, -7, 2,
|
|
2, -2, -4, 2, 8, -2, -2, -2, 4, 2, -2, 2, 3, 2, -2, -2,
|
|
2, 2, -2, -8, -2, 9, -2, 2, -3, -2, 2, -2, 2, 2, 2, 4,
|
|
-2, -4, 10, 2, 2, -2, -9, -2, 2, -2, 5, 4, -4, 4, -2, 2,
|
|
-5, -4, -3, 4, 2, -3, 3, -2, -5, 5, 3, 3, -2, -3, -10, -4}
|
|
},{
|
|
/* MapTab2 */
|
|
2, /* eob_sym */
|
|
11, /* esc_sym */
|
|
/* run table */
|
|
{1, 1, 0, 2, 2, 1, 1, 3, 3, 4, 4, 0, 1, 1, 5, 5,
|
|
2, 2, 6, 6, 7, 7, 1, 8, 1, 8, 3, 3, 9, 9, 1, 2,
|
|
2, 1, 4, 10, 4, 10, 11, 11, 1, 5, 12, 12, 1, 5, 13, 13,
|
|
3, 3, 6, 6, 2, 2, 14, 14, 16, 16, 15, 7, 15, 8, 8, 7,
|
|
1, 1, 17, 17, 4, 4, 1, 1, 18, 18, 2, 2, 5, 5, 25, 3,
|
|
9, 3, 25, 9, 19, 24, 19, 24, 1, 21, 20, 1, 21, 22, 20, 22,
|
|
23, 23, 8, 6, 33, 6, 8, 33, 7, 7, 26, 26, 1, 32, 1, 32,
|
|
28, 4, 28, 10, 29, 27, 27, 10, 41, 4, 29, 2, 2, 41, 36, 31,
|
|
49, 31, 34, 30, 34, 36, 30, 35, 1, 49, 11, 5, 35, 11, 1, 3,
|
|
3, 5, 37, 37, 8, 40, 8, 40, 12, 12, 42, 42, 1, 38, 16, 57,
|
|
1, 6, 16, 39, 38, 6, 7, 7, 13, 13, 39, 43, 2, 43, 57, 2,
|
|
50, 9, 44, 9, 50, 4, 15, 48, 44, 4, 1, 15, 48, 14, 14, 1,
|
|
45, 45, 8, 3, 5, 8, 51, 47, 3, 46, 46, 47, 5, 51, 1, 17,
|
|
17, 58, 1, 58, 2, 52, 52, 2, 53, 7, 59, 6, 6, 56, 53, 55,
|
|
7, 55, 1, 54, 59, 56, 54, 10, 1, 10, 4, 60, 1, 60, 8, 4,
|
|
8, 64, 64, 61, 1, 63, 3, 63, 62, 61, 5, 11, 5, 3, 11, 62},
|
|
|
|
/* value table */
|
|
{ 1, -1, 0, 1, -1, 2, -2, 1, -1, 1, -1, 0, 3, -3, 1, -1,
|
|
2, -2, 1, -1, 1, -1, 4, 1, -4, -1, 2, -2, 1, -1, 5, 3,
|
|
-3, -5, 2, 1, -2, -1, 1, -1, 6, 2, 1, -1, -6, -2, 1, -1,
|
|
3, -3, 2, -2, 4, -4, 1, -1, 1, -1, 1, 2, -1, 2, -2, -2,
|
|
7, -7, 1, -1, 3, -3, 8, -8, 1, -1, 5, -5, 3, -3, 1, 4,
|
|
2, -4, -1, -2, 1, 1, -1, -1, 9, 1, 1, -9, -1, 1, -1, -1,
|
|
1, -1, 3, -3, 1, 3, -3, -1, 3, -3, 1, -1, 10, 1, -10, -1,
|
|
1, 4, -1, 2, 1, -1, 1, -2, 1, -4, -1, 6, -6, -1, 1, 1,
|
|
1, -1, 1, 1, -1, -1, -1, 1, 11, -1, -2, 4, -1, 2, -11, 5,
|
|
-5, -4, -1, 1, 4, 1, -4, -1, -2, 2, 1, -1, 12, 1, -2, 1,
|
|
-12, 4, 2, 1, -1, -4, 4, -4, 2, -2, -1, 1, 7, -1, -1, -7,
|
|
-1, -3, 1, 3, 1, 5, 2, 1, -1, -5, 13, -2, -1, 2, -2, -13,
|
|
1, -1, 5, 6, 5, -5, 1, 1, -6, 1, -1, -1, -5, -1, 14, 2,
|
|
-2, 1, -14, -1, 8, 1, -1, -8, 1, 5, 1, 5, -5, 1, -1, 1,
|
|
-5, -1, 15, 1, -1, -1, -1, 3, -15, -3, 6, 1, 16, -1, 6, -6,
|
|
-6, 1, -1, 1, -16, 1, 7, -1, 1, -1, -6, -3, 6, -7, 3, -1}
|
|
},{
|
|
/* MapTab3 */
|
|
0, /* eob_sym */
|
|
35, /* esc_sym */
|
|
/* run table */
|
|
{0, 1, 1, 2, 2, 3, 3, 4, 4, 1, 1, 5, 5, 6, 6, 7,
|
|
7, 8, 8, 9, 9, 2, 2, 10, 10, 1, 1, 11, 11, 12, 12, 3,
|
|
3, 13, 13, 0, 14, 14, 16, 15, 16, 15, 4, 4, 17, 1, 17, 1,
|
|
5, 5, 18, 18, 2, 2, 6, 6, 8, 19, 7, 8, 7, 19, 20, 20,
|
|
21, 21, 22, 24, 22, 24, 23, 23, 1, 1, 25, 25, 3, 3, 26, 26,
|
|
9, 9, 27, 27, 28, 28, 33, 29, 4, 33, 29, 1, 4, 1, 32, 32,
|
|
2, 2, 31, 10, 30, 10, 30, 31, 34, 34, 5, 5, 36, 36, 35, 41,
|
|
35, 11, 41, 11, 37, 1, 8, 8, 37, 6, 1, 6, 40, 7, 7, 40,
|
|
12, 38, 12, 39, 39, 38, 49, 13, 49, 13, 3, 42, 3, 42, 16, 16,
|
|
43, 43, 14, 14, 1, 1, 44, 15, 44, 15, 2, 2, 57, 48, 50, 48,
|
|
57, 50, 4, 45, 45, 4, 46, 47, 47, 46, 1, 51, 1, 17, 17, 51,
|
|
8, 9, 9, 5, 58, 8, 58, 5, 52, 52, 55, 56, 53, 56, 55, 59,
|
|
59, 53, 54, 1, 6, 54, 7, 7, 6, 1, 2, 3, 2, 3, 64, 60,
|
|
60, 10, 10, 64, 61, 62, 61, 63, 1, 63, 62, 1, 18, 24, 18, 4,
|
|
25, 4, 8, 21, 21, 1, 24, 22, 25, 22, 8, 11, 19, 11, 23, 1,
|
|
20, 23, 19, 20, 5, 12, 5, 1, 16, 2, 12, 13, 2, 13, 1, 16},
|
|
|
|
/* value table */
|
|
{ 0, 1, -1, 1, -1, 1, -1, 1, -1, 2, -2, 1, -1, 1, -1, 1,
|
|
-1, 1, -1, 1, -1, 2, -2, 1, -1, 3, -3, 1, -1, 1, -1, 2,
|
|
-2, 1, -1, 0, 1, -1, 1, 1, -1, -1, 2, -2, 1, 4, -1, -4,
|
|
2, -2, 1, -1, -3, 3, 2, -2, 2, 1, 2, -2, -2, -1, 1, -1,
|
|
1, -1, 1, 1, -1, -1, 1, -1, 5, -5, 1, -1, 3, -3, 1, -1,
|
|
2, -2, 1, -1, 1, -1, 1, 1, 3, -1, -1, 6, -3, -6, -1, 1,
|
|
4, -4, 1, 2, 1, -2, -1, -1, 1, -1, 3, -3, 1, -1, 1, 1,
|
|
-1, 2, -1, -2, 1, 7, -3, 3, -1, 3, -7, -3, 1, -3, 3, -1,
|
|
2, 1, -2, 1, -1, -1, 1, 2, -1, -2, -4, -1, 4, 1, 2, -2,
|
|
1, -1, -2, 2, 8, -8, -1, 2, 1, -2, -5, 5, 1, -1, -1, 1,
|
|
-1, 1, 4, -1, 1, -4, -1, -1, 1, 1, 9, 1, -9, 2, -2, -1,
|
|
-4, 3, -3, -4, -1, 4, 1, 4, 1, -1, 1, -1, 1, 1, -1, 1,
|
|
-1, -1, -1, 10, 4, 1, 4, -4, -4, -10, 6, 5, -6, -5, 1, -1,
|
|
1, 3, -3, -1, 1, -1, -1, -1, 11, 1, 1, -11, -2, -2, 2, 5,
|
|
-2, -5, -5, 2, -2, 12, 2, -2, 2, 2, 5, -3, -2, 3, -2, -12,
|
|
-2, 2, 2, 2, -5, 3, 5, 13, -3, 7, -3, -3, -7, 3, -13, 3}
|
|
},{
|
|
/* MapTab4 */
|
|
0, /* eob_sym */
|
|
34, /* esc_sym */
|
|
/* run table */
|
|
{0, 1, 1, 1, 2, 2, 1, 3, 3, 1, 1, 1, 4, 4, 1, 5,
|
|
2, 1, 5, 2, 1, 1, 6, 6, 1, 1, 1, 1, 1, 7, 3, 1,
|
|
2, 3, 0, 1, 2, 7, 1, 1, 1, 8, 1, 1, 8, 1, 1, 1,
|
|
9, 1, 9, 1, 2, 1, 1, 2, 1, 1, 10, 4, 1, 10, 1, 4,
|
|
1, 1, 1, 1, 1, 3, 1, 1, 1, 3, 2, 1, 5, 1, 1, 1,
|
|
2, 5, 1, 11, 1, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
|
2, 1, 6, 1, 6, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 12,
|
|
3, 1, 12, 1, 1, 1, 2, 1, 1, 3, 1, 1, 1, 1, 1, 1,
|
|
4, 1, 1, 1, 2, 1, 1, 4, 1, 1, 1, 1, 1, 1, 2, 1,
|
|
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 3, 1, 2, 1, 1, 5,
|
|
1, 1, 1, 1, 1, 7, 1, 7, 1, 1, 2, 3, 1, 1, 1, 1,
|
|
5, 1, 1, 1, 1, 1, 1, 2, 13, 1, 1, 1, 1, 1, 1, 1,
|
|
1, 1, 1, 1, 1, 1, 1, 1, 13, 2, 1, 1, 4, 1, 1, 1,
|
|
3, 1, 6, 1, 1, 1, 14, 1, 1, 1, 1, 1, 14, 6, 1, 1,
|
|
1, 1, 15, 2, 4, 1, 2, 3, 15, 1, 1, 1, 8, 1, 1, 8,
|
|
1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1},
|
|
|
|
/* value table */
|
|
{ 0, 1, -1, 2, 1, -1, -2, 1, -1, 3, -3, 4, 1, -1, -4, 1,
|
|
2, 5, -1, -2, -5, 6, 1, -1, -6, 7, -7, 8, -8, 1, 2, 9,
|
|
3, -2, 0, -9, -3, -1, 10, -10, 11, 1, -11, 12, -1, -12, 13, -13,
|
|
1, 14, -1, -14, 4, 15, -15, -4, 16, -16, 1, 2, 17, -1, -17, -2,
|
|
18, -18, 19, -19, 20, 3, -20, 21, -21, -3, 5, 22, 2, -22, -23, 23,
|
|
-5, -2, 24, 1, -24, -1, 25, -25, 26, -26, -27, 27, 28, 29, -28, -29,
|
|
6, 30, 2, -31, -2, -30, 31, -6, -32, 32, 33, -33, 34, -35, -34, 1,
|
|
4, -36, -1, 35, 37, 36, 7, -37, 38, -4, -38, 39, 41, 40, -40, -39,
|
|
3, 42, -43, -41, -7, -42, 43, -3, 44, -44, 45, -45, 46, 47, 8, -47,
|
|
-48, -46, 50, -50, 48, 49, 51, -49, 52, -52, 5, -51, -8, -53, 53, 3,
|
|
-56, 56, 55, 54, -54, 2, 60, -2, -55, 58, 9, -5, 59, 57, -57, -63,
|
|
-3, -58, -60, -61, 61, -59, -62, -9, 1, 64, 62, 69, -64, 63, 65, -67,
|
|
-68, 66, -65, 68, -66, -69, 67, -70, -1, 10, 71, -71, 4, 73, 72, 70,
|
|
6, -76, -3, 74, -78, -74, 1, 78, 80, -72, -75, 76, -1, 3, -73, 79,
|
|
75, 77, 1, 11, -4, -79, -10, -6, -1, -77, -83, -80, 2, 81, -84, -2,
|
|
83, -81, 82, -82, 84, -87, -86, 85, -11, -85, 86, -89, 87, -88, 88, 89}
|
|
},{
|
|
/* MapTab5 */
|
|
2, /* eob_sym */
|
|
33, /* esc_sym */
|
|
/* run table */
|
|
{1, 1, 0, 2, 1, 2, 1, 3, 3, 1, 1, 4, 4, 2, 2, 1,
|
|
1, 5, 5, 6, 1, 6, 1, 7, 7, 3, 3, 2, 8, 2, 8, 1,
|
|
1, 0, 9, 9, 1, 1, 10, 4, 10, 4, 11, 11, 2, 1, 2, 1,
|
|
12, 12, 3, 3, 1, 1, 13, 5, 5, 13, 14, 1, 1, 14, 2, 2,
|
|
6, 6, 15, 1, 1, 15, 16, 4, 7, 16, 4, 7, 1, 1, 3, 3,
|
|
8, 8, 2, 2, 1, 1, 17, 17, 1, 1, 18, 18, 5, 5, 2, 2,
|
|
1, 1, 9, 19, 9, 19, 20, 3, 3, 20, 1, 10, 21, 1, 10, 4,
|
|
4, 21, 22, 6, 6, 22, 1, 1, 23, 24, 2, 2, 23, 24, 11, 1,
|
|
1, 11, 7, 25, 7, 1, 1, 25, 8, 8, 3, 26, 3, 1, 12, 2,
|
|
2, 26, 1, 12, 5, 5, 27, 4, 1, 4, 1, 27, 28, 1, 28, 13,
|
|
1, 13, 2, 29, 2, 1, 32, 6, 1, 30, 14, 29, 14, 6, 3, 31,
|
|
3, 1, 30, 1, 32, 31, 33, 9, 33, 1, 1, 7, 9, 7, 2, 2,
|
|
1, 1, 4, 36, 34, 4, 5, 10, 10, 5, 34, 1, 1, 35, 8, 8,
|
|
36, 3, 35, 1, 15, 3, 2, 1, 16, 15, 16, 2, 37, 1, 37, 1,
|
|
1, 1, 6, 6, 38, 1, 38, 11, 1, 39, 39, 40, 11, 2, 41, 4,
|
|
40, 1, 2, 4, 1, 1, 1, 41, 3, 1, 3, 1, 5, 7, 5, 7},
|
|
|
|
/* value table */
|
|
{ 1, -1, 0, 1, 2, -1, -2, 1, -1, 3, -3, 1, -1, 2, -2, 4,
|
|
-4, 1, -1, 1, 5, -1, -5, 1, -1, 2, -2, 3, 1, -3, -1, 6,
|
|
-6, 0, 1, -1, 7, -7, 1, 2, -1, -2, 1, -1, 4, 8, -4, -8,
|
|
1, -1, 3, -3, 9, -9, 1, 2, -2, -1, 1, 10, -10, -1, 5, -5,
|
|
2, -2, 1, 11, -11, -1, 1, 3, 2, -1, -3, -2, 12, -12, 4, -4,
|
|
2, -2, -6, 6, 13, -13, 1, -1, 14, -14, 1, -1, 3, -3, 7, -7,
|
|
15, -15, 2, 1, -2, -1, 1, 5, -5, -1, -16, 2, 1, 16, -2, 4,
|
|
-4, -1, 1, 3, -3, -1, 17, -17, 1, 1, -8, 8, -1, -1, 2, 18,
|
|
-18, -2, 3, 1, -3, 19, -19, -1, 3, -3, 6, 1, -6, 20, 2, 9,
|
|
-9, -1, -20, -2, 4, -4, 1, -5, 21, 5, -21, -1, 1, -22, -1, 2,
|
|
22, -2, 10, 1, -10, 23, 1, 4, -23, 1, 2, -1, -2, -4, -7, 1,
|
|
7, -24, -1, 24, -1, -1, 1, 3, -1, -25, 25, 4, -3, -4, 11, -11,
|
|
26, -26, 6, 1, 1, -6, -5, -3, 3, 5, -1, -27, 27, 1, 4, -4,
|
|
-1, -8, -1, 28, 2, 8, -12, -28, -2, -2, 2, 12, -1, 29, 1, -29,
|
|
30, -30, 5, -5, 1, -31, -1, 3, 31, -1, 1, 1, -3, -13, 1, -7,
|
|
-1, -32, 13, 7, 32, 33, -33, -1, -9, -34, 9, 34, -6, 5, 6, -5}
|
|
},{
|
|
/* MapTab6 */
|
|
2, /* eob_sym */
|
|
13, /* esc_sym */
|
|
/* run table */
|
|
{1, 1, 0, 1, 1, 2, 2, 1, 1, 3, 3, 1, 1, 0, 2, 2,
|
|
4, 1, 4, 1, 1, 1, 5, 5, 1, 1, 6, 6, 2, 2, 1, 1,
|
|
3, 3, 7, 7, 1, 1, 8, 8, 1, 1, 2, 2, 1, 9, 1, 9,
|
|
4, 4, 10, 1, 1, 10, 1, 1, 11, 11, 3, 3, 1, 2, 1, 2,
|
|
1, 1, 12, 12, 5, 5, 1, 1, 13, 1, 1, 13, 2, 2, 1, 1,
|
|
6, 6, 1, 1, 4, 14, 4, 14, 3, 1, 3, 1, 1, 1, 15, 7,
|
|
15, 2, 2, 7, 1, 1, 1, 8, 1, 8, 16, 16, 1, 1, 1, 1,
|
|
2, 1, 1, 2, 1, 1, 3, 5, 5, 3, 4, 1, 1, 4, 1, 1,
|
|
17, 17, 9, 1, 1, 9, 2, 2, 1, 1, 10, 10, 1, 6, 1, 1,
|
|
6, 18, 1, 1, 18, 1, 1, 1, 2, 2, 3, 1, 3, 1, 1, 1,
|
|
4, 1, 19, 1, 19, 7, 1, 1, 20, 1, 4, 20, 1, 7, 11, 2,
|
|
1, 11, 21, 2, 8, 5, 1, 8, 1, 5, 21, 1, 1, 1, 22, 1,
|
|
1, 22, 1, 1, 3, 3, 1, 23, 2, 12, 24, 1, 1, 2, 1, 1,
|
|
12, 23, 1, 1, 24, 1, 1, 1, 4, 1, 1, 1, 2, 1, 6, 6,
|
|
4, 2, 1, 1, 1, 1, 1, 1, 1, 14, 13, 3, 1, 25, 9, 25,
|
|
14, 1, 9, 3, 13, 1, 1, 1, 1, 1, 10, 1, 1, 2, 10, 2},
|
|
|
|
/* value table */
|
|
{-20, -1, 0, 2, -2, 1, -1, 3, -3, 1, -1, 4, -4, 0, 2, -2,
|
|
1, 5, -1, -5, 6, -6, 1, -1, 7, -7, 1, -1, 3, -3, 8, -8,
|
|
2, -2, 1, -1, 9, -9, 1, -1, 10, -10, 4, -4, 11, 1, -11, -1,
|
|
2, -2, 1, 12, -12, -1, 13, -13, 1, -1, 3, -3, 14, 5, -14, -5,
|
|
-15, 15, -1, 1, 2, -2, 16, -16, 1, 17, -17, -1, 6, -6, 18, -18,
|
|
2, -2, -19, 19, -3, 1, 3, -1, 4, 20, -4, 1, -21, 21, 1, 2,
|
|
-1, -7, 7, -2, 22, -22, 23, 2, -23, -2, 1, -1, -24, 24, -25, 25,
|
|
-8, -26, 26, 8, -27, 27, 5, 3, -3, -5, -4, 28, -28, 4, 29, -29,
|
|
1, -1, -2, -30, 30, 2, 9, -9, -31, 31, 2, -2, -32, 3, 32, -33,
|
|
-3, 1, 33, -34, -1, 34, -35, 35, -10, 10, -6, 36, 6, -36, 37, -37,
|
|
-5, 38, 1, -38, -1, 3, 39, -39, -1, 40, 5, 1, -40, -3, 2, -11,
|
|
-41, -2, 1, 11, -3, -4, 41, 3, 42, 4, -1, -43, -42, 43, 1, -44,
|
|
45, -1, 44, -45, -7, 7, -46, 1, -12, 2, 1, -47, 46, 12, 47, 48,
|
|
-2, -1, -48, 49, -1, -50, -49, 50, -6, -51, 51, 52, -13, 53, -4, 4,
|
|
6, 13, -53, -52, -54, 55, 54, -55, -56, -2, 2, -8, 56, 1, -3, -1,
|
|
2, 58, 3, 8, -2, 57, -58, -60, -59, -57, -3, 60, 59, -14, 3, 14}
|
|
},{
|
|
/* MapTab7 */
|
|
2, /* eob_sym */
|
|
38, /* esc_sym */
|
|
/* run table */
|
|
{1, 1, 0, 2, 2, 1, 1, 3, 3, 4, 4, 5, 5, 1, 1, 6,
|
|
6, 2, 2, 7, 7, 8, 8, 1, 1, 3, 3, 9, 9, 10, 10, 1,
|
|
1, 2, 2, 4, 4, 11, 0, 11, 12, 12, 13, 13, 1, 1, 5, 5,
|
|
14, 14, 15, 16, 15, 16, 3, 3, 1, 6, 1, 6, 2, 2, 7, 7,
|
|
8, 8, 17, 17, 1, 1, 4, 4, 18, 18, 2, 2, 1, 19, 1, 20,
|
|
19, 20, 21, 21, 3, 3, 22, 22, 5, 5, 24, 1, 1, 23, 9, 23,
|
|
24, 9, 2, 2, 10, 1, 1, 10, 6, 6, 25, 4, 4, 25, 7, 7,
|
|
26, 8, 1, 8, 3, 1, 26, 3, 11, 11, 27, 27, 2, 28, 1, 2,
|
|
28, 1, 12, 12, 5, 5, 29, 13, 13, 29, 32, 1, 1, 33, 31, 30,
|
|
32, 4, 30, 33, 4, 31, 3, 14, 1, 1, 3, 34, 34, 2, 2, 14,
|
|
6, 6, 35, 36, 35, 36, 1, 15, 1, 16, 16, 15, 7, 9, 7, 9,
|
|
37, 8, 8, 37, 1, 1, 39, 2, 38, 39, 2, 40, 5, 38, 40, 5,
|
|
3, 3, 4, 4, 10, 10, 1, 1, 1, 1, 41, 2, 41, 2, 6, 6,
|
|
1, 1, 11, 42, 11, 43, 3, 42, 3, 17, 4, 43, 1, 17, 7, 1,
|
|
8, 44, 4, 7, 44, 5, 8, 2, 5, 1, 2, 48, 45, 1, 12, 45,
|
|
12, 48, 13, 13, 1, 9, 9, 46, 1, 46, 47, 47, 49, 18, 18, 49},
|
|
|
|
/* value table */
|
|
{ 1, -1, 0, 1, -1, 2, -2, 1, -1, 1, -1, 1, -1, 3, -3, 1,
|
|
-1, -2, 2, 1, -1, 1, -1, 4, -4, -2, 2, 1, -1, 1, -1, 5,
|
|
-5, -3, 3, 2, -2, 1, 0, -1, 1, -1, 1, -1, 6, -6, 2, -2,
|
|
1, -1, 1, 1, -1, -1, -3, 3, 7, 2, -7, -2, -4, 4, 2, -2,
|
|
2, -2, 1, -1, 8, -8, 3, -3, 1, -1, -5, 5, 9, 1, -9, 1,
|
|
-1, -1, 1, -1, -4, 4, 1, -1, 3, -3, 1, -10, 10, 1, 2, -1,
|
|
-1, -2, 6, -6, 2, 11, -11, -2, 3, -3, 1, -4, 4, -1, 3, -3,
|
|
1, 3, 12, -3, -5, -12, -1, 5, 2, -2, 1, -1, -7, 1, 13, 7,
|
|
-1, -13, 2, -2, 4, -4, 1, 2, -2, -1, 1, 14, -14, 1, 1, 1,
|
|
-1, -5, -1, -1, 5, -1, -6, 2, -15, 15, 6, 1, -1, -8, 8, -2,
|
|
-4, 4, 1, 1, -1, -1, 16, 2, -16, -2, 2, -2, 4, 3, -4, -3,
|
|
-1, -4, 4, 1, -17, 17, -1, -9, 1, 1, 9, 1, -5, -1, -1, 5,
|
|
-7, 7, 6, -6, 3, -3, 18, -18, 19, -19, 1, -10, -1, 10, -5, 5,
|
|
20, -20, -3, 1, 3, 1, 8, -1, -8, 2, 7, -1, -21, -2, 5, 21,
|
|
5, -1, -7, -5, 1, -6, -5, -11, 6, 22, 11, 1, 1, -22, -3, -1,
|
|
3, -1, 3, -3, -23, 4, -4, 1, 23, -1, 1, -1, 1, -2, 2, -1}
|
|
},{
|
|
/* MapTab8 */
|
|
4, /* eob_sym */
|
|
11, /* esc_sym */
|
|
/* run table */
|
|
{1, 1, 1, 1, 0, 2, 2, 1, 1, 3, 3, 0, 1, 1, 2, 2,
|
|
4, 4, 1, 1, 5, 5, 1, 1, 2, 2, 3, 3, 6, 6, 1, 1,
|
|
7, 7, 8, 1, 8, 2, 2, 1, 4, 4, 1, 3, 1, 3, 9, 9,
|
|
2, 2, 1, 5, 1, 5, 10, 10, 1, 1, 11, 11, 3, 6, 3, 4,
|
|
4, 6, 2, 2, 1, 12, 1, 12, 7, 13, 7, 13, 1, 1, 8, 8,
|
|
2, 2, 14, 14, 16, 15, 16, 5, 5, 1, 3, 15, 1, 3, 4, 4,
|
|
1, 1, 17, 17, 2, 2, 6, 6, 1, 18, 1, 18, 22, 21, 22, 21,
|
|
25, 24, 25, 19, 9, 20, 9, 23, 19, 24, 20, 3, 23, 7, 3, 1,
|
|
1, 7, 28, 26, 29, 5, 28, 26, 5, 8, 29, 4, 8, 27, 2, 2,
|
|
4, 27, 1, 1, 10, 36, 10, 33, 33, 36, 30, 1, 32, 32, 1, 30,
|
|
6, 31, 31, 35, 3, 6, 11, 11, 3, 2, 35, 2, 34, 1, 34, 1,
|
|
37, 37, 12, 7, 12, 5, 41, 5, 4, 7, 1, 8, 13, 4, 1, 41,
|
|
13, 38, 8, 38, 9, 1, 40, 40, 9, 1, 39, 2, 2, 49, 39, 42,
|
|
3, 3, 14, 16, 49, 14, 16, 42, 43, 43, 6, 6, 15, 1, 1, 15,
|
|
44, 44, 1, 1, 50, 48, 4, 5, 4, 7, 5, 2, 10, 10, 48, 7,
|
|
50, 45, 2, 1, 45, 8, 8, 1, 46, 46, 3, 47, 47, 3, 1, 1},
|
|
|
|
/* value table */
|
|
{ 1, -1, 2, -2, 0, 1, -1, 3, -3, 1, -1, 0, 4, -4, 2, -2,
|
|
1, -1, 5, -5, 1, -1, 6, -6, 3, -3, 2, -2, 1, -1, 7, -7,
|
|
1, -1, 1, 8, -1, 4, -4, -8, 2, -2, 9, 3, -9, -3, 1, -1,
|
|
5, -5, 10, 2, -10, -2, 1, -1, 11, -11, 1, -1, -4, 2, 4, 3,
|
|
-3, -2, 6, -6, 12, 1, -12, -1, 2, 1, -2, -1, 13, -13, 2, -2,
|
|
7, -7, 1, -1, 1, 1, -1, 3, -3, 14, 5, -1, -14, -5, 4, -4,
|
|
15, -15, 1, -1, 8, -8, -3, 3, 16, 1, -16, -1, 1, 1, -1, -1,
|
|
1, 1, -1, 1, 2, 1, -2, 1, -1, -1, -1, 6, -1, 3, -6, 17,
|
|
-17, -3, 1, 1, 1, 4, -1, -1, -4, 3, -1, 5, -3, -1, -9, 9,
|
|
-5, 1, 18, -18, 2, 1, -2, 1, -1, -1, 1, 19, -1, 1, -19, -1,
|
|
4, 1, -1, 1, 7, -4, -2, 2, -7, 10, -1, -10, 1, 20, -1, -20,
|
|
1, -1, 2, 4, -2, 5, 1, -5, 6, -4, 21, 4, 2, -6, -21, -1,
|
|
-2, 1, -4, -1, -3, 22, -1, 1, 3, -22, -1, 11, -11, 1, 1, 1,
|
|
8, -8, 2, 2, -1, -2, -2, -1, 1, -1, -5, 5, 2, 23, -23, -2,
|
|
1, -1, 24, -24, -1, -1, 7, 6, -7, 5, -6, 12, -3, 3, 1, -5,
|
|
1, 1, -12, 25, -1, -5, 5, -25, -1, 1, 9, 1, -1, -9, 26, -26}
|
|
}
|
|
};
|