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TIFF decoder 

Originally committed as revision 6682 to svn://svn.ffmpeg.org/ffmpeg/trunk
tags/v0.5
Kostya Shishkov 19 years ago
parent
6ae177aa3b
commit
a991b1fecb
8 changed files with 444 additions and 2 deletions
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  1. +1
    -0
      Changelog
  2. +1
    -0
      MAINTAINERS
  3. +1
    -0
      doc/ffmpeg-doc.texi
  4. +1
    -0
      libavcodec/Makefile
  5. +3
    -0
      libavcodec/allcodecs.c
  6. +4
    -2
      libavcodec/avcodec.h
  7. +432
    -0
      libavcodec/tiff.c
  8. +1
    -0
      libavformat/mov.c

+ 1
- 0
Changelog View File

@@ -63,6 +63,7 @@ version <next>
- Delphine Software .cin demuxer/audio and video decoder
- Tiertex .seq demuxer/video decoder
- MTV demuxer
- TIFF picture decoder

version 0.4.9-pre1:



+ 1
- 0
MAINTAINERS View File

@@ -156,6 +156,7 @@ Codecs:
sonic.c Alex Beregszaszi
svq3.c Michael Niedermayer
targa.c Kostya Shishkov
tiff.c Kostya Shishkov
truemotion1* Mike Melanson
truemotion2* Kostya Shishkov
truespeech.c Kostya Shishkov


+ 1
- 0
doc/ffmpeg-doc.texi View File

@@ -761,6 +761,7 @@ following image formats are supported:
@item animated GIF @tab X @tab X @tab Only uncompressed GIFs are generated.
@item PNG @tab X @tab X @tab 2 bit and 4 bit/pixel not supported yet.
@item Targa @tab @tab X @tab Targa (.TGA) image format.
@item TIFF @tab @tab X @tab Only 24 bit/pixel images are supported.
@item SGI @tab X @tab X @tab SGI RGB image format
@end multitable



+ 1
- 0
libavcodec/Makefile View File

@@ -134,6 +134,7 @@ OBJS-$(CONFIG_SVQ1_ENCODER) += svq1.o
OBJS-$(CONFIG_SVQ3_DECODER) += h264.o
OBJS-$(CONFIG_TARGA_DECODER) += targa.o
OBJS-$(CONFIG_THEORA_DECODER) += vp3.o
OBJS-$(CONFIG_TIFF_DECODER) += tiff.o
OBJS-$(CONFIG_TRUEMOTION1_DECODER) += truemotion1.o
OBJS-$(CONFIG_TRUEMOTION2_DECODER) += truemotion2.o
OBJS-$(CONFIG_TRUESPEECH_DECODER) += truespeech.o


+ 3
- 0
libavcodec/allcodecs.c View File

@@ -557,6 +557,9 @@ void avcodec_register_all(void)
#ifdef CONFIG_TIERTEXSEQVIDEO_DECODER
register_avcodec(&tiertexseqvideo_decoder);
#endif //CONFIG_TIERTEXSEQVIDEO_DECODER
#ifdef CONFIG_TIFF_DECODER
register_avcodec(&tiff_decoder);
#endif //CONFIG_TIFF_DECODER

#if defined(CONFIG_AMR_NB) || defined(CONFIG_AMR_NB_FIXED)
#ifdef CONFIG_AMR_NB_DECODER


+ 4
- 2
libavcodec/avcodec.h View File

@@ -37,8 +37,8 @@ extern "C" {
#define AV_STRINGIFY(s) AV_TOSTRING(s)
#define AV_TOSTRING(s) #s

#define LIBAVCODEC_VERSION_INT ((51<<16)+(19<<8)+0)
#define LIBAVCODEC_VERSION 51.19.0
#define LIBAVCODEC_VERSION_INT ((51<<16)+(20<<8)+0)
#define LIBAVCODEC_VERSION 51.20.0
#define LIBAVCODEC_BUILD LIBAVCODEC_VERSION_INT

#define LIBAVCODEC_IDENT "Lavc" AV_STRINGIFY(LIBAVCODEC_VERSION)
@@ -147,6 +147,7 @@ enum CodecID {
CODEC_ID_TARGA,
CODEC_ID_DSICINVIDEO,
CODEC_ID_TIERTEXSEQVIDEO,
CODEC_ID_TIFF,

/* various pcm "codecs" */
CODEC_ID_PCM_S16LE= 0x10000,
@@ -2300,6 +2301,7 @@ extern AVCodec targa_decoder;
extern AVCodec dsicinvideo_decoder;
extern AVCodec dsicinaudio_decoder;
extern AVCodec tiertexseqvideo_decoder;
extern AVCodec tiff_decoder;

/* pcm codecs */
#define PCM_CODEC(id, name) \


+ 432
- 0
libavcodec/tiff.c View File

@@ -0,0 +1,432 @@
/*
* 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
*
*/
#include "avcodec.h"
#ifdef CONFIG_ZLIB
#include <zlib.h>
#endif

/* abridged list of TIFF tags */
enum TiffTags{
TIFF_WIDTH = 0x100,
TIFF_HEIGHT,
TIFF_BPP,
TIFF_COMPR,
TIFF_INVERT = 0x106,
TIFF_STRIP_OFFS = 0x111,
TIFF_ROWSPERSTRIP = 0x116,
TIFF_STRIP_SIZE,
TIFF_XPOS = 0x11E,
TIFF_YPOS = 0x11F,
TIFF_PREDICTOR = 0x13D
};

enum TiffCompr{
TIFF_RAW = 1,
TIFF_CCITT_RLE,
TIFF_G3,
TIFF_G4,
TIFF_LZW,
TIFF_JPEG,
TIFF_NEWJPEG,
TIFF_ADOBE_DEFLATE,
TIFF_PACKBITS = 0x8005,
TIFF_DEFLATE = 0x80B2
};

enum TiffTypes{
TIFF_BYTE = 1,
TIFF_STRING,
TIFF_SHORT,
TIFF_LONG,
TIFF_LONGLONG
};

typedef struct TiffContext {
AVCodecContext *avctx;
AVFrame picture;

int width, height;
unsigned int bpp;
int le;
int compr;

int strips, rps;
int sot;
uint8_t* stripdata;
uint8_t* stripsizes;
int stripsize, stripoff;
} TiffContext;

static int tget_short(uint8_t **p, int le){
int v = le ? LE_16(*p) : BE_16(*p);
*p += 2;
return v;
}

static int tget_long(uint8_t **p, int le){
int v = le ? LE_32(*p) : BE_32(*p);
*p += 4;
return v;
}

static int tget(uint8_t **p, int type, int le){
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;
}
}

static int tiff_unpack_strip(TiffContext *s, uint8_t* dst, int stride, uint8_t *src, int size, int lines){
int c, line, pixels, code;
uint8_t *ssrc = src;
int width = s->width * (s->bpp / 8);
#ifdef CONFIG_ZLIB
uint8_t *zbuf; unsigned long outlen;

if(s->compr == TIFF_DEFLATE || s->compr == TIFF_ADOBE_DEFLATE){
outlen = width * lines;
if(lines != s->height){
av_log(s->avctx, AV_LOG_ERROR, "This decoder won't decode ZLib-packed TIFF with %i lines per strip\n", lines);
return -1;
}
zbuf = av_malloc(outlen);
if(uncompress(zbuf, &outlen, src, size) != Z_OK){
av_log(s->avctx, AV_LOG_ERROR, "Uncompressing failed (%lu of %lu)\n", outlen, (unsigned long)width * lines);
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
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:
memcpy(dst, src, s->width * (s->bpp / 8));
src += s->width * (s->bpp / 8);
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;
}
dst += stride;
}
return 0;
}


static int tiff_decode_tag(TiffContext *s, uint8_t *start, uint8_t *buf, uint8_t *end_buf, AVFrame *pic)
{
int tag, type, count, off, value = 0;
uint8_t *src, *dst;
int i, j, ssize, soff, stride;

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;
default:
value = -1;
buf = start + off;
}
}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;
s->avctx->pix_fmt = PIX_FMT_RGB24;
if(s->width != s->avctx->width || s->height != s->avctx->height){
if(avcodec_check_dimensions(s->avctx, s->width, s->height))
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;
}
break;
case TIFF_BPP:
if(count == 1) s->bpp = value;
else{
switch(type){
case TIFF_BYTE:
s->bpp = (off & 0xFF) + ((off >> 8) & 0xFF) + ((off >> 16) & 0xFF);
break;
case TIFF_SHORT:
case TIFF_LONG:
s->bpp = tget(&buf, type, s->le) + tget(&buf, type, s->le) + tget(&buf, type, s->le);
break;
default:
s->bpp = -1;
}
}
if(s->bpp != 24){
av_log(s->avctx, AV_LOG_ERROR, "Only RGB24 is supported\n");
return -1;
}
break;
case TIFF_COMPR:
s->compr = value;
switch(s->compr){
case TIFF_RAW:
case TIFF_PACKBITS:
break;
case TIFF_DEFLATE:
case TIFF_ADOBE_DEFLATE:
#ifdef CONFIG_ZLIB
break;
#else
av_log(s->avctx, AV_LOG_ERROR, "Deflate: ZLib not compiled in\n");
return -1;
#endif
case TIFF_LZW:
av_log(s->avctx, AV_LOG_ERROR, "LZW: not implemented yet\n");
return -1;
case TIFF_G3:
av_log(s->avctx, AV_LOG_ERROR, "CCITT G3 compression is not supported\n");
return -1;
case TIFF_G4:
av_log(s->avctx, AV_LOG_ERROR, "CCITT G4 compression is not supported\n");
return -1;
case TIFF_CCITT_RLE:
av_log(s->avctx, AV_LOG_ERROR, "CCITT RLE compression is not supported\n");
return -1;
default:
av_log(s->avctx, AV_LOG_ERROR, "Unknown compression method %i\n", s->compr);
return -1;
}
break;
case TIFF_ROWSPERSTRIP:
if(value < 1 || value > s->height){
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;
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;
if(s->stripsizes > end_buf){
av_log(s->avctx, AV_LOG_ERROR, "Tag referencing position outside the image\n");
return -1;
}
if(!pic->data[0]){
av_log(s->avctx, AV_LOG_ERROR, "Picture initialization missing\n");
return -1;
}
/* now we have the data and may start decoding */
stride = pic->linesize[0];
dst = pic->data[0];
for(i = 0; i < s->height; i += s->rps){
if(s->stripsizes)
ssize = tget(&s->stripsizes, type, s->le);
else
ssize = s->stripsize;

if(s->stripdata){
soff = tget(&s->stripdata, s->sot, s->le);
}else
soff = s->stripoff;
src = start + soff;
if(tiff_unpack_strip(s, dst, stride, src, ssize, FFMIN(s->rps, s->height - i)) < 0)
break;
dst += s->rps * stride;
}
break;
case TIFF_PREDICTOR:
if(!pic->data[0]){
av_log(s->avctx, AV_LOG_ERROR, "Picture initialization missing\n");
return -1;
}
if(value == 2){
src = pic->data[0] + pic->linesize[0];
stride = pic->linesize[0];
soff = s->bpp >> 3;
ssize = s->width * soff;
for(i = 0; i < s->height; i++) {
for(j = soff; j < ssize; j++)
src[j] += src[j - soff];
src += stride;
}
}
break;
}
return 0;
}

static int decode_frame(AVCodecContext *avctx,
void *data, int *data_size,
uint8_t *buf, int buf_size)
{
TiffContext * const s = avctx->priv_data;
AVFrame *picture = data;
AVFrame * const p= (AVFrame*)&s->picture;
uint8_t *orig_buf = buf, *end_buf = buf + buf_size;
int id, le, off;
int i, entries;

//parse image header
id = LE_16(buf); buf += 2;
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;
// 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++){
if(tiff_decode_tag(s, orig_buf, buf, end_buf, p) < 0)
return -1;
buf += 12;
}

*picture= *(AVFrame*)&s->picture;
*data_size = sizeof(AVPicture);

return buf_size;
}

static int tiff_init(AVCodecContext *avctx){
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;
s->picture.data[0] = NULL;

return 0;
}

static int tiff_end(AVCodecContext *avctx)
{
TiffContext * const s = avctx->priv_data;

if(s->picture.data[0])
avctx->release_buffer(avctx, &s->picture);
return 0;
}

AVCodec tiff_decoder = {
"tiff",
CODEC_TYPE_VIDEO,
CODEC_ID_TIFF,
sizeof(TiffContext),
tiff_init,
NULL,
tiff_end,
decode_frame,
0,
NULL
};

+ 1
- 0
libavformat/mov.c View File

@@ -118,6 +118,7 @@ static const CodecTag mov_video_tags[] = {
{ CODEC_ID_DVVIDEO, MKTAG('A', 'V', 'd', 'v') }, /* AVID DV */
//{ CODEC_ID_JPEG2000, MKTAG('m', 'j', 'p', '2') }, /* JPEG 2000 produced by FCP */
{ CODEC_ID_TARGA, MKTAG('t', 'g', 'a', ' ') }, /* Truevision Targa */
{ CODEC_ID_TIFF, MKTAG('t', 'i', 'f', 'f') }, /* TIFF embedded in MOV */
{ CODEC_ID_RAWVIDEO, MKTAG('2', 'v', 'u', 'y') }, /* UNCOMPRESSED 8BIT 4:2:2 */
{ CODEC_ID_NONE, 0 },
};


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