2006-10-13 12:48:29 +02:00
|
|
|
/*
|
|
|
|
* TIFF image decoder
|
|
|
|
* Copyright (c) 2006 Konstantin Shishkov
|
|
|
|
*
|
|
|
|
* 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
|
|
|
|
*/
|
2007-04-04 13:43:08 +02:00
|
|
|
|
|
|
|
/**
|
|
|
|
* TIFF image decoder
|
2010-04-20 16:45:34 +02:00
|
|
|
* @file
|
2007-04-04 13:43:08 +02:00
|
|
|
* @author Konstantin Shishkov
|
|
|
|
*/
|
2006-10-13 12:48:29 +02:00
|
|
|
#include "avcodec.h"
|
2009-01-14 00:44:16 +01:00
|
|
|
#if CONFIG_ZLIB
|
2006-10-13 12:48:29 +02:00
|
|
|
#include <zlib.h>
|
|
|
|
#endif
|
2006-10-26 06:15:48 +02:00
|
|
|
#include "lzw.h"
|
2007-04-03 15:43:57 +02:00
|
|
|
#include "tiff.h"
|
2008-12-26 19:42:26 +01:00
|
|
|
#include "faxcompr.h"
|
2009-11-09 10:11:35 +01:00
|
|
|
#include "libavutil/common.h"
|
2009-12-03 20:19:57 +01:00
|
|
|
#include "libavutil/intreadwrite.h"
|
2011-02-07 14:37:08 +01:00
|
|
|
#include "libavutil/imgutils.h"
|
2006-11-13 12:34:46 +01:00
|
|
|
|
2006-10-13 12:48:29 +02:00
|
|
|
typedef struct TiffContext {
|
|
|
|
AVCodecContext *avctx;
|
|
|
|
AVFrame picture;
|
|
|
|
|
|
|
|
int width, height;
|
|
|
|
unsigned int bpp;
|
|
|
|
int le;
|
|
|
|
int compr;
|
2006-11-13 06:32:10 +01:00
|
|
|
int invert;
|
2008-12-26 19:42:26 +01:00
|
|
|
int fax_opts;
|
2008-12-22 07:50:18 +01:00
|
|
|
int predictor;
|
2009-09-24 20:30:28 +02:00
|
|
|
int fill_order;
|
2006-10-13 12:48:29 +02:00
|
|
|
|
2008-12-22 07:50:18 +01:00
|
|
|
int strips, rps, sstype;
|
2006-10-13 12:48:29 +02:00
|
|
|
int sot;
|
2008-02-01 15:28:22 +01:00
|
|
|
const uint8_t* stripdata;
|
|
|
|
const uint8_t* stripsizes;
|
2006-10-13 12:48:29 +02:00
|
|
|
int stripsize, stripoff;
|
2006-10-26 06:15:48 +02:00
|
|
|
LZWState *lzw;
|
2006-10-13 12:48:29 +02:00
|
|
|
} TiffContext;
|
|
|
|
|
2008-02-01 15:28:22 +01:00
|
|
|
static int tget_short(const uint8_t **p, int le){
|
2007-01-19 23:12:59 +01:00
|
|
|
int v = le ? AV_RL16(*p) : AV_RB16(*p);
|
2006-10-13 12:48:29 +02:00
|
|
|
*p += 2;
|
|
|
|
return v;
|
|
|
|
}
|
|
|
|
|
2008-02-01 15:28:22 +01:00
|
|
|
static int tget_long(const uint8_t **p, int le){
|
2007-01-19 23:12:59 +01:00
|
|
|
int v = le ? AV_RL32(*p) : AV_RB32(*p);
|
2006-10-13 12:48:29 +02:00
|
|
|
*p += 4;
|
|
|
|
return v;
|
|
|
|
}
|
|
|
|
|
2008-02-01 15:28:22 +01:00
|
|
|
static int tget(const uint8_t **p, int type, int le){
|
2006-10-13 12:48:29 +02:00
|
|
|
switch(type){
|
|
|
|
case TIFF_BYTE : return *(*p)++;
|
|
|
|
case TIFF_SHORT: return tget_short(p, le);
|
|
|
|
case TIFF_LONG : return tget_long (p, le);
|
|
|
|
default : return -1;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2009-09-27 11:43:11 +02:00
|
|
|
#if CONFIG_ZLIB
|
2009-09-27 09:01:01 +02:00
|
|
|
static int tiff_uncompress(uint8_t *dst, unsigned long *len, const uint8_t *src, int size)
|
|
|
|
{
|
|
|
|
z_stream zstream;
|
|
|
|
int zret;
|
|
|
|
|
|
|
|
memset(&zstream, 0, sizeof(zstream));
|
|
|
|
zstream.next_in = src;
|
|
|
|
zstream.avail_in = size;
|
|
|
|
zstream.next_out = dst;
|
|
|
|
zstream.avail_out = *len;
|
|
|
|
zret = inflateInit(&zstream);
|
|
|
|
if (zret != Z_OK) {
|
|
|
|
av_log(NULL, AV_LOG_ERROR, "Inflate init error: %d\n", zret);
|
|
|
|
return zret;
|
|
|
|
}
|
|
|
|
zret = inflate(&zstream, Z_SYNC_FLUSH);
|
|
|
|
inflateEnd(&zstream);
|
|
|
|
*len = zstream.total_out;
|
|
|
|
return zret == Z_STREAM_END ? Z_OK : zret;
|
|
|
|
}
|
2009-09-27 11:43:11 +02:00
|
|
|
#endif
|
2009-09-27 09:01:01 +02:00
|
|
|
|
2008-02-01 15:28:22 +01:00
|
|
|
static int tiff_unpack_strip(TiffContext *s, uint8_t* dst, int stride, const uint8_t *src, int size, int lines){
|
2006-10-13 12:48:29 +02:00
|
|
|
int c, line, pixels, code;
|
2008-02-01 15:28:22 +01:00
|
|
|
const uint8_t *ssrc = src;
|
2008-12-22 07:39:31 +01:00
|
|
|
int width = s->width * s->bpp >> 3;
|
2009-01-14 00:44:16 +01:00
|
|
|
#if CONFIG_ZLIB
|
2006-10-13 12:48:29 +02:00
|
|
|
uint8_t *zbuf; unsigned long outlen;
|
|
|
|
|
|
|
|
if(s->compr == TIFF_DEFLATE || s->compr == TIFF_ADOBE_DEFLATE){
|
2009-09-27 09:01:01 +02:00
|
|
|
int ret;
|
2006-10-13 12:48:29 +02:00
|
|
|
outlen = width * lines;
|
|
|
|
zbuf = av_malloc(outlen);
|
2009-09-27 09:01:01 +02:00
|
|
|
ret = tiff_uncompress(zbuf, &outlen, src, size);
|
|
|
|
if(ret != Z_OK){
|
|
|
|
av_log(s->avctx, AV_LOG_ERROR, "Uncompressing failed (%lu of %lu) with error %d\n", outlen, (unsigned long)width * lines, ret);
|
2006-10-13 12:48:29 +02:00
|
|
|
av_free(zbuf);
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
src = zbuf;
|
|
|
|
for(line = 0; line < lines; line++){
|
|
|
|
memcpy(dst, src, width);
|
|
|
|
dst += stride;
|
|
|
|
src += width;
|
|
|
|
}
|
|
|
|
av_free(zbuf);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
#endif
|
2006-10-26 06:15:48 +02:00
|
|
|
if(s->compr == TIFF_LZW){
|
|
|
|
if(ff_lzw_decode_init(s->lzw, 8, src, size, FF_LZW_TIFF) < 0){
|
|
|
|
av_log(s->avctx, AV_LOG_ERROR, "Error initializing LZW decoder\n");
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
}
|
2008-12-26 19:42:26 +01:00
|
|
|
if(s->compr == TIFF_CCITT_RLE || s->compr == TIFF_G3 || s->compr == TIFF_G4){
|
|
|
|
int i, ret = 0;
|
|
|
|
uint8_t *src2 = av_malloc(size + FF_INPUT_BUFFER_PADDING_SIZE);
|
|
|
|
|
|
|
|
if(!src2 || (unsigned)size + FF_INPUT_BUFFER_PADDING_SIZE < (unsigned)size){
|
|
|
|
av_log(s->avctx, AV_LOG_ERROR, "Error allocating temporary buffer\n");
|
|
|
|
return -1;
|
|
|
|
}
|
2009-10-01 08:31:49 +02:00
|
|
|
if(s->fax_opts & 2){
|
|
|
|
av_log(s->avctx, AV_LOG_ERROR, "Uncompressed fax mode is not supported (yet)\n");
|
|
|
|
av_free(src2);
|
|
|
|
return -1;
|
|
|
|
}
|
2009-09-24 20:30:28 +02:00
|
|
|
if(!s->fill_order){
|
|
|
|
memcpy(src2, src, size);
|
|
|
|
}else{
|
|
|
|
for(i = 0; i < size; i++)
|
2009-11-09 10:11:35 +01:00
|
|
|
src2[i] = av_reverse[src[i]];
|
2009-09-24 20:30:28 +02:00
|
|
|
}
|
2008-12-26 19:42:26 +01:00
|
|
|
memset(src2+size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
|
|
|
|
switch(s->compr){
|
|
|
|
case TIFF_CCITT_RLE:
|
|
|
|
case TIFF_G3:
|
|
|
|
case TIFF_G4:
|
2009-09-28 07:17:20 +02:00
|
|
|
ret = ff_ccitt_unpack(s->avctx, src2, size, dst, lines, stride, s->compr, s->fax_opts);
|
2008-12-26 19:42:26 +01:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
av_free(src2);
|
|
|
|
return ret;
|
|
|
|
}
|
2006-10-13 12:48:29 +02:00
|
|
|
for(line = 0; line < lines; line++){
|
|
|
|
if(src - ssrc > size){
|
|
|
|
av_log(s->avctx, AV_LOG_ERROR, "Source data overread\n");
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
switch(s->compr){
|
|
|
|
case TIFF_RAW:
|
2008-12-22 07:39:31 +01:00
|
|
|
memcpy(dst, src, width);
|
|
|
|
src += width;
|
2006-10-13 12:48:29 +02:00
|
|
|
break;
|
|
|
|
case TIFF_PACKBITS:
|
|
|
|
for(pixels = 0; pixels < width;){
|
|
|
|
code = (int8_t)*src++;
|
|
|
|
if(code >= 0){
|
|
|
|
code++;
|
|
|
|
if(pixels + code > width){
|
|
|
|
av_log(s->avctx, AV_LOG_ERROR, "Copy went out of bounds\n");
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
memcpy(dst + pixels, src, code);
|
|
|
|
src += code;
|
|
|
|
pixels += code;
|
|
|
|
}else if(code != -128){ // -127..-1
|
|
|
|
code = (-code) + 1;
|
|
|
|
if(pixels + code > width){
|
|
|
|
av_log(s->avctx, AV_LOG_ERROR, "Run went out of bounds\n");
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
c = *src++;
|
|
|
|
memset(dst + pixels, c, code);
|
|
|
|
pixels += code;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
break;
|
2006-10-26 06:15:48 +02:00
|
|
|
case TIFF_LZW:
|
|
|
|
pixels = ff_lzw_decode(s->lzw, dst, width);
|
|
|
|
if(pixels < width){
|
|
|
|
av_log(s->avctx, AV_LOG_ERROR, "Decoded only %i bytes of %i\n", pixels, width);
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
break;
|
2006-10-13 12:48:29 +02:00
|
|
|
}
|
|
|
|
dst += stride;
|
|
|
|
}
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2008-12-22 07:50:18 +01:00
|
|
|
static int tiff_decode_tag(TiffContext *s, const uint8_t *start, const uint8_t *buf, const uint8_t *end_buf)
|
2006-10-13 12:48:29 +02:00
|
|
|
{
|
|
|
|
int tag, type, count, off, value = 0;
|
2008-12-22 07:50:18 +01:00
|
|
|
int i, j;
|
2007-07-09 02:08:47 +02:00
|
|
|
uint32_t *pal;
|
2008-02-01 15:28:22 +01:00
|
|
|
const uint8_t *rp, *gp, *bp;
|
2006-10-13 12:48:29 +02:00
|
|
|
|
|
|
|
tag = tget_short(&buf, s->le);
|
|
|
|
type = tget_short(&buf, s->le);
|
|
|
|
count = tget_long(&buf, s->le);
|
|
|
|
off = tget_long(&buf, s->le);
|
|
|
|
|
|
|
|
if(count == 1){
|
|
|
|
switch(type){
|
|
|
|
case TIFF_BYTE:
|
|
|
|
case TIFF_SHORT:
|
|
|
|
buf -= 4;
|
|
|
|
value = tget(&buf, type, s->le);
|
|
|
|
buf = NULL;
|
|
|
|
break;
|
|
|
|
case TIFF_LONG:
|
|
|
|
value = off;
|
|
|
|
buf = NULL;
|
|
|
|
break;
|
2008-12-17 18:39:35 +01:00
|
|
|
case TIFF_STRING:
|
|
|
|
if(count <= 4){
|
|
|
|
buf -= 4;
|
|
|
|
break;
|
|
|
|
}
|
2006-10-13 12:48:29 +02:00
|
|
|
default:
|
|
|
|
value = -1;
|
|
|
|
buf = start + off;
|
|
|
|
}
|
2006-11-13 12:34:46 +01:00
|
|
|
}else if(type_sizes[type] * count <= 4){
|
|
|
|
buf -= 4;
|
2006-10-13 12:48:29 +02:00
|
|
|
}else{
|
|
|
|
buf = start + off;
|
|
|
|
}
|
|
|
|
|
|
|
|
if(buf && (buf < start || buf > end_buf)){
|
|
|
|
av_log(s->avctx, AV_LOG_ERROR, "Tag referencing position outside the image\n");
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
switch(tag){
|
|
|
|
case TIFF_WIDTH:
|
|
|
|
s->width = value;
|
|
|
|
break;
|
|
|
|
case TIFF_HEIGHT:
|
|
|
|
s->height = value;
|
|
|
|
break;
|
|
|
|
case TIFF_BPP:
|
2011-01-06 23:12:55 +01:00
|
|
|
if(count > 4){
|
|
|
|
av_log(s->avctx, AV_LOG_ERROR, "This format is not supported (bpp=%d, %d components)\n", s->bpp, count);
|
|
|
|
return -1;
|
|
|
|
}
|
2006-10-13 12:48:29 +02:00
|
|
|
if(count == 1) s->bpp = value;
|
|
|
|
else{
|
|
|
|
switch(type){
|
|
|
|
case TIFF_BYTE:
|
2006-11-13 06:28:55 +01:00
|
|
|
s->bpp = (off & 0xFF) + ((off >> 8) & 0xFF) + ((off >> 16) & 0xFF) + ((off >> 24) & 0xFF);
|
2006-10-13 12:48:29 +02:00
|
|
|
break;
|
|
|
|
case TIFF_SHORT:
|
|
|
|
case TIFF_LONG:
|
2006-11-13 06:28:55 +01:00
|
|
|
s->bpp = 0;
|
|
|
|
for(i = 0; i < count; i++) s->bpp += tget(&buf, type, s->le);
|
2006-10-13 12:48:29 +02:00
|
|
|
break;
|
|
|
|
default:
|
|
|
|
s->bpp = -1;
|
|
|
|
}
|
|
|
|
}
|
2009-06-02 17:31:51 +02:00
|
|
|
switch(s->bpp*10 + count){
|
|
|
|
case 11:
|
2008-12-22 07:43:14 +01:00
|
|
|
s->avctx->pix_fmt = PIX_FMT_MONOBLACK;
|
|
|
|
break;
|
2009-06-02 17:31:51 +02:00
|
|
|
case 81:
|
2006-11-13 06:32:10 +01:00
|
|
|
s->avctx->pix_fmt = PIX_FMT_PAL8;
|
|
|
|
break;
|
2009-06-02 17:31:51 +02:00
|
|
|
case 243:
|
2006-11-13 06:32:10 +01:00
|
|
|
s->avctx->pix_fmt = PIX_FMT_RGB24;
|
|
|
|
break;
|
2009-06-02 17:31:51 +02:00
|
|
|
case 161:
|
|
|
|
s->avctx->pix_fmt = PIX_FMT_GRAY16BE;
|
2006-11-13 12:39:28 +01:00
|
|
|
break;
|
2009-06-02 17:31:51 +02:00
|
|
|
case 324:
|
|
|
|
s->avctx->pix_fmt = PIX_FMT_RGBA;
|
|
|
|
break;
|
|
|
|
case 483:
|
|
|
|
s->avctx->pix_fmt = s->le ? PIX_FMT_RGB48LE : PIX_FMT_RGB48BE;
|
2009-05-06 08:49:04 +02:00
|
|
|
break;
|
2006-11-13 06:32:10 +01:00
|
|
|
default:
|
2009-05-06 08:49:04 +02:00
|
|
|
av_log(s->avctx, AV_LOG_ERROR, "This format is not supported (bpp=%d, %d components)\n", s->bpp, count);
|
2006-11-13 06:32:10 +01:00
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
if(s->width != s->avctx->width || s->height != s->avctx->height){
|
2010-09-07 21:15:29 +02:00
|
|
|
if(av_image_check_size(s->width, s->height, 0, s->avctx))
|
2006-11-13 06:32:10 +01:00
|
|
|
return -1;
|
|
|
|
avcodec_set_dimensions(s->avctx, s->width, s->height);
|
|
|
|
}
|
|
|
|
if(s->picture.data[0])
|
|
|
|
s->avctx->release_buffer(s->avctx, &s->picture);
|
|
|
|
if(s->avctx->get_buffer(s->avctx, &s->picture) < 0){
|
|
|
|
av_log(s->avctx, AV_LOG_ERROR, "get_buffer() failed\n");
|
2006-10-13 12:48:29 +02:00
|
|
|
return -1;
|
|
|
|
}
|
2006-11-13 06:32:10 +01:00
|
|
|
if(s->bpp == 8){
|
|
|
|
/* make default grayscale pal */
|
2007-07-09 02:08:47 +02:00
|
|
|
pal = (uint32_t *) s->picture.data[1];
|
2006-11-13 06:32:10 +01:00
|
|
|
for(i = 0; i < 256; i++)
|
|
|
|
pal[i] = i * 0x010101;
|
|
|
|
}
|
2006-10-13 12:48:29 +02:00
|
|
|
break;
|
|
|
|
case TIFF_COMPR:
|
|
|
|
s->compr = value;
|
2008-12-22 07:50:18 +01:00
|
|
|
s->predictor = 0;
|
2006-10-13 12:48:29 +02:00
|
|
|
switch(s->compr){
|
|
|
|
case TIFF_RAW:
|
|
|
|
case TIFF_PACKBITS:
|
2006-10-26 06:15:48 +02:00
|
|
|
case TIFF_LZW:
|
2008-12-26 19:42:26 +01:00
|
|
|
case TIFF_CCITT_RLE:
|
|
|
|
break;
|
|
|
|
case TIFF_G3:
|
|
|
|
case TIFF_G4:
|
|
|
|
s->fax_opts = 0;
|
2006-10-13 12:48:29 +02:00
|
|
|
break;
|
|
|
|
case TIFF_DEFLATE:
|
|
|
|
case TIFF_ADOBE_DEFLATE:
|
2009-01-14 00:44:16 +01:00
|
|
|
#if CONFIG_ZLIB
|
2006-10-13 12:48:29 +02:00
|
|
|
break;
|
|
|
|
#else
|
|
|
|
av_log(s->avctx, AV_LOG_ERROR, "Deflate: ZLib not compiled in\n");
|
|
|
|
return -1;
|
|
|
|
#endif
|
2006-11-13 06:29:45 +01:00
|
|
|
case TIFF_JPEG:
|
|
|
|
case TIFF_NEWJPEG:
|
|
|
|
av_log(s->avctx, AV_LOG_ERROR, "JPEG compression is not supported\n");
|
|
|
|
return -1;
|
2006-10-13 12:48:29 +02:00
|
|
|
default:
|
|
|
|
av_log(s->avctx, AV_LOG_ERROR, "Unknown compression method %i\n", s->compr);
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case TIFF_ROWSPERSTRIP:
|
2008-12-22 07:47:51 +01:00
|
|
|
if(type == TIFF_LONG && value == -1)
|
|
|
|
value = s->avctx->height;
|
2006-11-13 06:30:50 +01:00
|
|
|
if(value < 1){
|
2006-10-13 12:48:29 +02:00
|
|
|
av_log(s->avctx, AV_LOG_ERROR, "Incorrect value of rows per strip\n");
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
s->rps = value;
|
|
|
|
break;
|
|
|
|
case TIFF_STRIP_OFFS:
|
|
|
|
if(count == 1){
|
|
|
|
s->stripdata = NULL;
|
|
|
|
s->stripoff = value;
|
|
|
|
}else
|
|
|
|
s->stripdata = start + off;
|
|
|
|
s->strips = count;
|
2007-01-25 07:44:53 +01:00
|
|
|
if(s->strips == 1) s->rps = s->height;
|
2006-10-13 12:48:29 +02:00
|
|
|
s->sot = type;
|
|
|
|
if(s->stripdata > end_buf){
|
|
|
|
av_log(s->avctx, AV_LOG_ERROR, "Tag referencing position outside the image\n");
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case TIFF_STRIP_SIZE:
|
|
|
|
if(count == 1){
|
|
|
|
s->stripsizes = NULL;
|
|
|
|
s->stripsize = value;
|
|
|
|
s->strips = 1;
|
|
|
|
}else{
|
|
|
|
s->stripsizes = start + off;
|
|
|
|
}
|
|
|
|
s->strips = count;
|
2008-12-22 07:50:18 +01:00
|
|
|
s->sstype = type;
|
2006-10-13 12:48:29 +02:00
|
|
|
if(s->stripsizes > end_buf){
|
|
|
|
av_log(s->avctx, AV_LOG_ERROR, "Tag referencing position outside the image\n");
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case TIFF_PREDICTOR:
|
2008-12-22 07:50:18 +01:00
|
|
|
s->predictor = value;
|
2006-10-13 12:48:29 +02:00
|
|
|
break;
|
2006-11-13 06:32:10 +01:00
|
|
|
case TIFF_INVERT:
|
|
|
|
switch(value){
|
|
|
|
case 0:
|
|
|
|
s->invert = 1;
|
|
|
|
break;
|
|
|
|
case 1:
|
|
|
|
s->invert = 0;
|
|
|
|
break;
|
2006-11-13 12:20:50 +01:00
|
|
|
case 2:
|
|
|
|
case 3:
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
av_log(s->avctx, AV_LOG_ERROR, "Color mode %d is not supported\n", value);
|
|
|
|
return -1;
|
2006-11-13 06:32:10 +01:00
|
|
|
}
|
|
|
|
break;
|
2009-09-24 20:30:28 +02:00
|
|
|
case TIFF_FILL_ORDER:
|
|
|
|
if(value < 1 || value > 2){
|
|
|
|
av_log(s->avctx, AV_LOG_ERROR, "Unknown FillOrder value %d, trying default one\n", value);
|
|
|
|
value = 1;
|
|
|
|
}
|
|
|
|
s->fill_order = value - 1;
|
|
|
|
break;
|
2006-11-13 06:32:10 +01:00
|
|
|
case TIFF_PAL:
|
|
|
|
if(s->avctx->pix_fmt != PIX_FMT_PAL8){
|
|
|
|
av_log(s->avctx, AV_LOG_ERROR, "Palette met but this is not palettized format\n");
|
|
|
|
return -1;
|
|
|
|
}
|
2007-07-09 02:08:47 +02:00
|
|
|
pal = (uint32_t *) s->picture.data[1];
|
2006-11-13 12:34:46 +01:00
|
|
|
off = type_sizes[type];
|
2006-11-13 06:32:10 +01:00
|
|
|
rp = buf;
|
|
|
|
gp = buf + count / 3 * off;
|
|
|
|
bp = buf + count / 3 * off * 2;
|
2006-11-13 12:34:46 +01:00
|
|
|
off = (type_sizes[type] - 1) << 3;
|
2006-11-13 06:32:10 +01:00
|
|
|
for(i = 0; i < count / 3; i++){
|
|
|
|
j = (tget(&rp, type, s->le) >> off) << 16;
|
|
|
|
j |= (tget(&gp, type, s->le) >> off) << 8;
|
|
|
|
j |= tget(&bp, type, s->le) >> off;
|
|
|
|
pal[i] = j;
|
|
|
|
}
|
2006-11-13 12:38:42 +01:00
|
|
|
break;
|
|
|
|
case TIFF_PLANAR:
|
|
|
|
if(value == 2){
|
|
|
|
av_log(s->avctx, AV_LOG_ERROR, "Planar format is not supported\n");
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
break;
|
2008-12-26 19:42:26 +01:00
|
|
|
case TIFF_T4OPTIONS:
|
2009-09-28 07:15:27 +02:00
|
|
|
if(s->compr == TIFF_G3)
|
|
|
|
s->fax_opts = value;
|
|
|
|
break;
|
2008-12-26 19:42:26 +01:00
|
|
|
case TIFF_T6OPTIONS:
|
2009-09-28 07:15:27 +02:00
|
|
|
if(s->compr == TIFF_G4)
|
|
|
|
s->fax_opts = value;
|
2008-12-26 19:42:26 +01:00
|
|
|
break;
|
2006-10-13 12:48:29 +02:00
|
|
|
}
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int decode_frame(AVCodecContext *avctx,
|
|
|
|
void *data, int *data_size,
|
2009-04-07 17:59:50 +02:00
|
|
|
AVPacket *avpkt)
|
2006-10-13 12:48:29 +02:00
|
|
|
{
|
2009-04-07 17:59:50 +02:00
|
|
|
const uint8_t *buf = avpkt->data;
|
|
|
|
int buf_size = avpkt->size;
|
2006-10-13 12:48:29 +02:00
|
|
|
TiffContext * const s = avctx->priv_data;
|
|
|
|
AVFrame *picture = data;
|
|
|
|
AVFrame * const p= (AVFrame*)&s->picture;
|
2008-02-01 15:28:22 +01:00
|
|
|
const uint8_t *orig_buf = buf, *end_buf = buf + buf_size;
|
2006-10-13 12:48:29 +02:00
|
|
|
int id, le, off;
|
2008-12-22 07:50:18 +01:00
|
|
|
int i, j, entries;
|
|
|
|
int stride, soff, ssize;
|
|
|
|
uint8_t *dst;
|
2006-10-13 12:48:29 +02:00
|
|
|
|
|
|
|
//parse image header
|
2007-01-19 23:12:59 +01:00
|
|
|
id = AV_RL16(buf); buf += 2;
|
2006-10-13 12:48:29 +02:00
|
|
|
if(id == 0x4949) le = 1;
|
|
|
|
else if(id == 0x4D4D) le = 0;
|
|
|
|
else{
|
|
|
|
av_log(avctx, AV_LOG_ERROR, "TIFF header not found\n");
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
s->le = le;
|
2006-11-13 06:32:10 +01:00
|
|
|
s->invert = 0;
|
2007-12-01 16:41:35 +01:00
|
|
|
s->compr = TIFF_RAW;
|
2009-09-24 20:30:28 +02:00
|
|
|
s->fill_order = 0;
|
2006-10-13 12:48:29 +02:00
|
|
|
// As TIFF 6.0 specification puts it "An arbitrary but carefully chosen number
|
|
|
|
// that further identifies the file as a TIFF file"
|
|
|
|
if(tget_short(&buf, le) != 42){
|
|
|
|
av_log(avctx, AV_LOG_ERROR, "The answer to life, universe and everything is not correct!\n");
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
/* parse image file directory */
|
|
|
|
off = tget_long(&buf, le);
|
|
|
|
if(orig_buf + off + 14 >= end_buf){
|
|
|
|
av_log(avctx, AV_LOG_ERROR, "IFD offset is greater than image size\n");
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
buf = orig_buf + off;
|
|
|
|
entries = tget_short(&buf, le);
|
|
|
|
for(i = 0; i < entries; i++){
|
2008-12-22 07:50:18 +01:00
|
|
|
if(tiff_decode_tag(s, orig_buf, buf, end_buf) < 0)
|
2006-10-13 12:48:29 +02:00
|
|
|
return -1;
|
|
|
|
buf += 12;
|
|
|
|
}
|
2008-12-22 07:50:18 +01:00
|
|
|
if(!s->stripdata && !s->stripoff){
|
|
|
|
av_log(avctx, AV_LOG_ERROR, "Image data is missing\n");
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
/* now we have the data and may start decoding */
|
|
|
|
if(!p->data[0]){
|
2009-09-30 07:49:18 +02:00
|
|
|
s->bpp = 1;
|
|
|
|
avctx->pix_fmt = PIX_FMT_MONOBLACK;
|
|
|
|
if(s->width != s->avctx->width || s->height != s->avctx->height){
|
2010-09-07 21:15:29 +02:00
|
|
|
if(av_image_check_size(s->width, s->height, 0, s->avctx))
|
2009-09-30 07:49:18 +02:00
|
|
|
return -1;
|
|
|
|
avcodec_set_dimensions(s->avctx, s->width, s->height);
|
|
|
|
}
|
|
|
|
if(s->picture.data[0])
|
|
|
|
s->avctx->release_buffer(s->avctx, &s->picture);
|
|
|
|
if(s->avctx->get_buffer(s->avctx, &s->picture) < 0){
|
|
|
|
av_log(s->avctx, AV_LOG_ERROR, "get_buffer() failed\n");
|
|
|
|
return -1;
|
|
|
|
}
|
2008-12-22 07:50:18 +01:00
|
|
|
}
|
|
|
|
if(s->strips == 1 && !s->stripsize){
|
|
|
|
av_log(avctx, AV_LOG_WARNING, "Image data size missing\n");
|
|
|
|
s->stripsize = buf_size - s->stripoff;
|
|
|
|
}
|
|
|
|
stride = p->linesize[0];
|
|
|
|
dst = p->data[0];
|
|
|
|
for(i = 0; i < s->height; i += s->rps){
|
|
|
|
if(s->stripsizes)
|
|
|
|
ssize = tget(&s->stripsizes, s->sstype, s->le);
|
|
|
|
else
|
|
|
|
ssize = s->stripsize;
|
|
|
|
|
2011-01-06 15:44:50 +01:00
|
|
|
if (ssize > buf_size) {
|
|
|
|
av_log(avctx, AV_LOG_ERROR, "Buffer size is smaller than strip size\n");
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
2008-12-22 07:50:18 +01:00
|
|
|
if(s->stripdata){
|
|
|
|
soff = tget(&s->stripdata, s->sot, s->le);
|
|
|
|
}else
|
|
|
|
soff = s->stripoff;
|
2011-01-09 20:29:39 +01:00
|
|
|
if (soff < 0) {
|
|
|
|
av_log(avctx, AV_LOG_ERROR, "Invalid stripoff: %d\n", soff);
|
|
|
|
return AVERROR(EINVAL);
|
|
|
|
}
|
2008-12-22 07:50:18 +01:00
|
|
|
if(tiff_unpack_strip(s, dst, stride, orig_buf + soff, ssize, FFMIN(s->rps, s->height - i)) < 0)
|
|
|
|
break;
|
|
|
|
dst += s->rps * stride;
|
|
|
|
}
|
|
|
|
if(s->predictor == 2){
|
|
|
|
dst = p->data[0];
|
|
|
|
soff = s->bpp >> 3;
|
|
|
|
ssize = s->width * soff;
|
|
|
|
for(i = 0; i < s->height; i++) {
|
|
|
|
for(j = soff; j < ssize; j++)
|
|
|
|
dst[j] += dst[j - soff];
|
|
|
|
dst += stride;
|
|
|
|
}
|
|
|
|
}
|
2006-10-13 12:48:29 +02:00
|
|
|
|
2006-11-13 06:32:10 +01:00
|
|
|
if(s->invert){
|
|
|
|
uint8_t *src;
|
|
|
|
int j;
|
|
|
|
|
|
|
|
src = s->picture.data[0];
|
|
|
|
for(j = 0; j < s->height; j++){
|
|
|
|
for(i = 0; i < s->picture.linesize[0]; i++)
|
|
|
|
src[i] = 255 - src[i];
|
|
|
|
src += s->picture.linesize[0];
|
|
|
|
}
|
|
|
|
}
|
2006-10-13 12:48:29 +02:00
|
|
|
*picture= *(AVFrame*)&s->picture;
|
|
|
|
*data_size = sizeof(AVPicture);
|
|
|
|
|
|
|
|
return buf_size;
|
|
|
|
}
|
|
|
|
|
2008-03-21 04:11:20 +01:00
|
|
|
static av_cold int tiff_init(AVCodecContext *avctx){
|
2006-10-13 12:48:29 +02:00
|
|
|
TiffContext *s = avctx->priv_data;
|
|
|
|
|
|
|
|
s->width = 0;
|
|
|
|
s->height = 0;
|
|
|
|
s->avctx = avctx;
|
|
|
|
avcodec_get_frame_defaults((AVFrame*)&s->picture);
|
|
|
|
avctx->coded_frame= (AVFrame*)&s->picture;
|
2006-10-26 06:15:48 +02:00
|
|
|
ff_lzw_decode_open(&s->lzw);
|
2008-12-26 19:42:26 +01:00
|
|
|
ff_ccitt_unpack_init();
|
2006-10-13 12:48:29 +02:00
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2008-03-21 04:11:20 +01:00
|
|
|
static av_cold int tiff_end(AVCodecContext *avctx)
|
2006-10-13 12:48:29 +02:00
|
|
|
{
|
|
|
|
TiffContext * const s = avctx->priv_data;
|
|
|
|
|
2006-10-26 06:15:48 +02:00
|
|
|
ff_lzw_decode_close(&s->lzw);
|
2006-10-13 12:48:29 +02:00
|
|
|
if(s->picture.data[0])
|
|
|
|
avctx->release_buffer(avctx, &s->picture);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2011-01-25 22:40:11 +01:00
|
|
|
AVCodec ff_tiff_decoder = {
|
2006-10-13 12:48:29 +02:00
|
|
|
"tiff",
|
2010-03-31 01:30:55 +02:00
|
|
|
AVMEDIA_TYPE_VIDEO,
|
2006-10-13 12:48:29 +02:00
|
|
|
CODEC_ID_TIFF,
|
|
|
|
sizeof(TiffContext),
|
|
|
|
tiff_init,
|
|
|
|
NULL,
|
|
|
|
tiff_end,
|
|
|
|
decode_frame,
|
2009-06-05 10:46:04 +02:00
|
|
|
CODEC_CAP_DR1,
|
2008-04-29 23:31:21 +02:00
|
|
|
NULL,
|
2008-06-12 23:50:13 +02:00
|
|
|
.long_name = NULL_IF_CONFIG_SMALL("TIFF image"),
|
2006-10-13 12:48:29 +02:00
|
|
|
};
|