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tiff: K&R formatting cosmetics

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This commit is contained in:
Diego Biurrun 2013-06-01 15:35:11 +02:00
parent f849a77e67
commit 46ce9ded96
3 changed files with 239 additions and 235 deletions
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114
libavcodec/tiff.c
View File

@ -25,19 +25,20 @@
* @author Konstantin Shishkov
*/
#include "avcodec.h"
#include "config.h"
#if CONFIG_ZLIB
#include <zlib.h>
#endif
#include "lzw.h"
#include "tiff.h"
#include "faxcompr.h"
#include "internal.h"
#include "mathops.h"
#include "libavutil/attributes.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/imgutils.h"
#include "avcodec.h"
#include "faxcompr.h"
#include "internal.h"
#include "lzw.h"
#include "mathops.h"
#include "tiff.h"
typedef struct TiffContext {
AVCodecContext *avctx;
@ -78,10 +79,14 @@ static unsigned tget_long(const uint8_t **p, int le)
static unsigned tget(const 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 UINT_MAX;
case TIFF_BYTE:
return *(*p)++;
case TIFF_SHORT:
return tget_short(p, le);
case TIFF_LONG:
return tget_long(p, le);
default:
return UINT_MAX;
}
}
@ -92,11 +97,11 @@ static int tiff_uncompress(uint8_t *dst, unsigned long *len, const uint8_t *src,
z_stream zstream = { 0 };
int zret;
zstream.next_in = src;
zstream.avail_in = size;
zstream.next_out = dst;
zstream.next_in = src;
zstream.avail_in = size;
zstream.next_out = dst;
zstream.avail_out = *len;
zret = inflateInit(&zstream);
zret = inflateInit(&zstream);
if (zret != Z_OK) {
av_log(NULL, AV_LOG_ERROR, "Inflate init error: %d\n", zret);
return zret;
@ -113,7 +118,7 @@ static int tiff_unpack_strip(TiffContext *s, uint8_t *dst, int stride,
{
int c, line, pixels, code, ret;
const uint8_t *ssrc = src;
int width = ((s->width * s->bpp) + 7) >> 3;
int width = ((s->width * s->bpp) + 7) >> 3;
if (size <= 0)
return AVERROR_INVALIDDATA;
@ -124,7 +129,7 @@ static int tiff_unpack_strip(TiffContext *s, uint8_t *dst, int stride,
unsigned long outlen;
int ret;
outlen = width * lines;
zbuf = av_malloc(outlen);
zbuf = av_malloc(outlen);
if (!zbuf)
return AVERROR(ENOMEM);
ret = tiff_uncompress(zbuf, &outlen, src, size);
@ -151,8 +156,9 @@ static int tiff_unpack_strip(TiffContext *s, uint8_t *dst, int stride,
return ret;
}
}
if (s->compr == TIFF_CCITT_RLE || s->compr == TIFF_G3
|| s->compr == TIFF_G4) {
if (s->compr == TIFF_CCITT_RLE ||
s->compr == TIFF_G3 ||
s->compr == TIFF_G4) {
int i, ret = 0;
uint8_t *src2 = av_malloc((unsigned)size +
FF_INPUT_BUFFER_PADDING_SIZE);
@ -206,7 +212,7 @@ static int tiff_unpack_strip(TiffContext *s, uint8_t *dst, int stride,
break;
case TIFF_PACKBITS:
for (pixels = 0; pixels < width;) {
code = (int8_t) * src++;
code = (int8_t) *src++;
if (code >= 0) {
code++;
if (pixels + code > width) {
@ -215,7 +221,7 @@ static int tiff_unpack_strip(TiffContext *s, uint8_t *dst, int stride,
return AVERROR_INVALIDDATA;
}
memcpy(dst + pixels, src, code);
src += code;
src += code;
pixels += code;
} else if (code != -128) { // -127..-1
code = (-code) + 1;
@ -306,10 +312,10 @@ static int tiff_decode_tag(TiffContext *s, const uint8_t *start,
if (end_buf - buf < 12)
return AVERROR_INVALIDDATA;
tag = tget_short(&buf, s->le);
type = tget_short(&buf, s->le);
tag = tget_short(&buf, s->le);
type = tget_short(&buf, s->le);
count = tget_long(&buf, s->le);
off = tget_long(&buf, s->le);
off = tget_long(&buf, s->le);
if (type == 0 || type >= FF_ARRAY_ELEMS(type_sizes)) {
av_log(s->avctx, AV_LOG_DEBUG, "Unknown tiff type (%u) encountered\n",
@ -321,13 +327,13 @@ static int tiff_decode_tag(TiffContext *s, const uint8_t *start,
switch (type) {
case TIFF_BYTE:
case TIFF_SHORT:
buf -= 4;
buf -= 4;
value = tget(&buf, type, s->le);
buf = NULL;
buf = NULL;
break;
case TIFF_LONG:
value = off;
buf = NULL;
buf = NULL;
break;
case TIFF_STRING:
if (count <= 4) {
@ -336,14 +342,13 @@ static int tiff_decode_tag(TiffContext *s, const uint8_t *start,
}
default:
value = UINT_MAX;
buf = start + off;
buf = start + off;
}
} else {
if (count <= 4 && type_sizes[type] * count <= 4) {
if (count <= 4 && type_sizes[type] * count <= 4)
buf -= 4;
} else {
else
buf = start + off;
}
}
if (buf && (buf < start || buf > end_buf)) {
@ -397,7 +402,7 @@ static int tiff_decode_tag(TiffContext *s, const uint8_t *start,
s->bppcount = value;
break;
case TIFF_COMPR:
s->compr = value;
s->compr = value;
s->predictor = 0;
switch (s->compr) {
case TIFF_RAW:
@ -441,7 +446,7 @@ static int tiff_decode_tag(TiffContext *s, const uint8_t *start,
case TIFF_STRIP_OFFS:
if (count == 1) {
s->stripdata = NULL;
s->stripoff = value;
s->stripoff = value;
} else
s->stripdata = start + off;
s->strips = count;
@ -457,8 +462,8 @@ static int tiff_decode_tag(TiffContext *s, const uint8_t *start,
case TIFF_STRIP_SIZE:
if (count == 1) {
s->stripsizes = NULL;
s->stripsize = value;
s->strips = 1;
s->stripsize = value;
s->strips = 1;
} else {
s->stripsizes = start + off;
}
@ -503,14 +508,14 @@ static int tiff_decode_tag(TiffContext *s, const uint8_t *start,
off = type_sizes[type];
if (count / 3 > 256 || end_buf - buf < count / 3 * off * 3)
return AVERROR_INVALIDDATA;
rp = buf;
gp = buf + count / 3 * off;
bp = buf + count / 3 * off * 2;
rp = buf;
gp = buf + count / 3 * off;
bp = buf + count / 3 * off * 2;
off = (type_sizes[type] - 1) << 3;
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;
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;
}
s->palette_is_set = 1;
@ -540,21 +545,20 @@ static int decode_frame(AVCodecContext *avctx,
void *data, int *got_frame, AVPacket *avpkt)
{
const uint8_t *buf = avpkt->data;
int buf_size = avpkt->size;
int buf_size = avpkt->size;
TiffContext *const s = avctx->priv_data;
AVFrame *const p = data;
const uint8_t *orig_buf = buf, *end_buf = buf + buf_size;
unsigned off;
int id, le, ret;
int i, j, entries;
int stride;
int i, j, entries, stride;
unsigned soff, ssize;
uint8_t *dst;
//parse image header
// parse image header
if (end_buf - buf < 8)
return AVERROR_INVALIDDATA;
id = AV_RL16(buf);
id = AV_RL16(buf);
buf += 2;
if (id == 0x4949)
le = 1;
@ -564,9 +568,9 @@ static int decode_frame(AVCodecContext *avctx,
av_log(avctx, AV_LOG_ERROR, "TIFF header not found\n");
return AVERROR_INVALIDDATA;
}
s->le = le;
s->invert = 0;
s->compr = TIFF_RAW;
s->le = le;
s->invert = 0;
s->compr = TIFF_RAW;
s->fill_order = 0;
// As TIFF 6.0 specification puts it "An arbitrary but carefully chosen number
// that further identifies the file as a TIFF file"
@ -583,7 +587,7 @@ static int decode_frame(AVCodecContext *avctx,
av_log(avctx, AV_LOG_ERROR, "IFD offset is greater than image size\n");
return AVERROR_INVALIDDATA;
}
buf = orig_buf + off;
buf = orig_buf + off;
entries = tget_short(&buf, le);
for (i = 0; i < entries; i++) {
if ((ret = tiff_decode_tag(s, orig_buf, buf, end_buf)) < 0)
@ -603,7 +607,7 @@ static int decode_frame(AVCodecContext *avctx,
s->stripsize = buf_size - s->stripoff;
}
stride = p->linesize[0];
dst = p->data[0];
dst = p->data[0];
for (i = 0; i < s->height; i += s->rps) {
if (s->stripsizes) {
if (s->stripsizes >= end_buf)
@ -629,8 +633,8 @@ static int decode_frame(AVCodecContext *avctx,
dst += s->rps * stride;
}
if (s->predictor == 2) {
dst = p->data[0];
soff = s->bpp >> 3;
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++)
@ -659,9 +663,9 @@ static av_cold int tiff_init(AVCodecContext *avctx)
{
TiffContext *s = avctx->priv_data;
s->width = 0;
s->width = 0;
s->height = 0;
s->avctx = avctx;
s->avctx = avctx;
ff_lzw_decode_open(&s->lzw);
ff_ccitt_unpack_init();
@ -678,6 +682,7 @@ static av_cold int tiff_end(AVCodecContext *avctx)
AVCodec ff_tiff_decoder = {
.name = "tiff",
.long_name = NULL_IF_CONFIG_SMALL("TIFF image"),
.type = AVMEDIA_TYPE_VIDEO,
.id = AV_CODEC_ID_TIFF,
.priv_data_size = sizeof(TiffContext),
@ -685,5 +690,4 @@ AVCodec ff_tiff_decoder = {
.close = tiff_end,
.decode = decode_frame,
.capabilities = CODEC_CAP_DR1,
.long_name = NULL_IF_CONFIG_SMALL("TIFF image"),
};

48
libavcodec/tiff.h
View File

@ -31,37 +31,37 @@
#include <stdint.h>
/** abridged list of TIFF tags */
enum TiffTags{
TIFF_SUBFILE = 0xfe,
TIFF_WIDTH = 0x100,
enum TiffTags {
TIFF_SUBFILE = 0xfe,
TIFF_WIDTH = 0x100,
TIFF_HEIGHT,
TIFF_BPP,
TIFF_COMPR,
TIFF_INVERT = 0x106,
TIFF_FILL_ORDER = 0x10A,
TIFF_STRIP_OFFS = 0x111,
TIFF_SAMPLES_PER_PIXEL = 0x115,
TIFF_ROWSPERSTRIP = 0x116,
TIFF_INVERT = 0x106,
TIFF_FILL_ORDER = 0x10A,
TIFF_STRIP_OFFS = 0x111,
TIFF_SAMPLES_PER_PIXEL = 0x115,
TIFF_ROWSPERSTRIP = 0x116,
TIFF_STRIP_SIZE,
TIFF_XRES = 0x11A,
TIFF_YRES = 0x11B,
TIFF_PLANAR = 0x11C,
TIFF_XPOS = 0x11E,
TIFF_YPOS = 0x11F,
TIFF_T4OPTIONS = 0x124,
TIFF_XRES = 0x11A,
TIFF_YRES = 0x11B,
TIFF_PLANAR = 0x11C,
TIFF_XPOS = 0x11E,
TIFF_YPOS = 0x11F,
TIFF_T4OPTIONS = 0x124,
TIFF_T6OPTIONS,
TIFF_RES_UNIT = 0x128,
TIFF_SOFTWARE_NAME = 0x131,
TIFF_PREDICTOR = 0x13D,
TIFF_PAL = 0x140,
TIFF_RES_UNIT = 0x128,
TIFF_SOFTWARE_NAME = 0x131,
TIFF_PREDICTOR = 0x13D,
TIFF_PAL = 0x140,
TIFF_YCBCR_COEFFICIENTS = 0x211,
TIFF_YCBCR_SUBSAMPLING = 0x212,
TIFF_YCBCR_POSITIONING = 0x213,
TIFF_REFERENCE_BW = 0x214,
TIFF_YCBCR_SUBSAMPLING = 0x212,
TIFF_YCBCR_POSITIONING = 0x213,
TIFF_REFERENCE_BW = 0x214,
};
/** list of TIFF compression types */
enum TiffCompr{
enum TiffCompr {
TIFF_RAW = 1,
TIFF_CCITT_RLE,
TIFF_G3,
@ -71,10 +71,10 @@ enum TiffCompr{
TIFF_NEWJPEG,
TIFF_ADOBE_DEFLATE,
TIFF_PACKBITS = 0x8005,
TIFF_DEFLATE = 0x80B2
TIFF_DEFLATE = 0x80B2
};
enum TiffTypes{
enum TiffTypes {
TIFF_BYTE = 1,
TIFF_STRING,
TIFF_SHORT,

312
libavcodec/tiffenc.c
View File

@ -25,20 +25,20 @@
* @author Bartlomiej Wolowiec
*/
#include "libavutil/log.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "avcodec.h"
#include "config.h"
#if CONFIG_ZLIB
#include <zlib.h>
#endif
#include "libavutil/log.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "avcodec.h"
#include "bytestream.h"
#include "tiff.h"
#include "rle.h"
#include "lzw.h"
#include "put_bits.h"
#include "rle.h"
#include "tiff.h"
#define TIFF_MAX_ENTRY 32
@ -48,35 +48,34 @@ static const uint8_t type_sizes2[6] = {
};
typedef struct TiffEncoderContext {
AVClass *class; ///< for private options
AVClass *class; ///< for private options
AVCodecContext *avctx;
AVFrame picture;
int width; ///< picture width
int height; ///< picture height
unsigned int bpp; ///< bits per pixel
int compr; ///< compression level
int bpp_tab_size; ///< bpp_tab size
int photometric_interpretation; ///< photometric interpretation
int strips; ///< number of strips
int rps; ///< row per strip
uint8_t entries[TIFF_MAX_ENTRY*12]; ///< entires in header
int num_entries; ///< number of entires
uint8_t **buf; ///< actual position in buffer
uint8_t *buf_start; ///< pointer to first byte in buffer
int buf_size; ///< buffer size
uint16_t subsampling[2]; ///< YUV subsampling factors
struct LZWEncodeState *lzws; ///< LZW Encode state
int width; ///< picture width
int height; ///< picture height
unsigned int bpp; ///< bits per pixel
int compr; ///< compression level
int bpp_tab_size; ///< bpp_tab size
int photometric_interpretation; ///< photometric interpretation
int strips; ///< number of strips
int rps; ///< row per strip
uint8_t entries[TIFF_MAX_ENTRY * 12]; ///< entries in header
int num_entries; ///< number of entries
uint8_t **buf; ///< actual position in buffer
uint8_t *buf_start; ///< pointer to first byte in buffer
int buf_size; ///< buffer size
uint16_t subsampling[2]; ///< YUV subsampling factors
struct LZWEncodeState *lzws; ///< LZW encode state
} TiffEncoderContext;
/**
* Check free space in buffer
* @param s Tiff context
* @param need Needed bytes
* @return 0 - ok, 1 - no free space
*/
static inline int check_size(TiffEncoderContext * s, uint64_t need)
static inline int check_size(TiffEncoderContext *s, uint64_t need)
{
if (s->buf_size < *s->buf - s->buf_start + need) {
*s->buf = s->buf_start + s->buf_size + 1;
@ -95,12 +94,12 @@ static inline int check_size(TiffEncoderContext * s, uint64_t need)
* @param type Type of values
* @param flip =0 - normal copy, >0 - flip
*/
static void tnput(uint8_t ** p, int n, const uint8_t * val, enum TiffTypes type,
static void tnput(uint8_t **p, int n, const uint8_t *val, enum TiffTypes type,
int flip)
{
int i;
#if HAVE_BIGENDIAN
flip ^= ((int[]) {0, 0, 0, 1, 3, 3})[type];
flip ^= ((int[]) { 0, 0, 0, 1, 3, 3 })[type];
#endif
for (i = 0; i < n * type_sizes2[type]; i++)
*(*p)++ = val[i ^ flip];
@ -114,9 +113,8 @@ static void tnput(uint8_t ** p, int n, const uint8_t * val, enum TiffTypes type,
* @param count The number of values
* @param ptr_val Pointer to values
*/
static void add_entry(TiffEncoderContext * s,
enum TiffTags tag, enum TiffTypes type, int count,
const void *ptr_val)
static void add_entry(TiffEncoderContext *s, enum TiffTags tag,
enum TiffTypes type, int count, const void *ptr_val)
{
uint8_t *entries_ptr = s->entries + 12 * s->num_entries;
@ -137,10 +135,11 @@ static void add_entry(TiffEncoderContext * s,
s->num_entries++;
}
static void add_entry1(TiffEncoderContext * s,
enum TiffTags tag, enum TiffTypes type, int val){
uint16_t w = val;
uint32_t dw= val;
static void add_entry1(TiffEncoderContext *s,
enum TiffTags tag, enum TiffTypes type, int val)
{
uint16_t w = val;
uint32_t dw = val;
add_entry(s, tag, type, 1, type == TIFF_SHORT ? (void *)&w : (void *)&dw);
}
@ -154,22 +153,21 @@ static void add_entry1(TiffEncoderContext * s,
* @param compr Compression method
* @return Number of output bytes. If an output error is encountered, -1 returned
*/
static int encode_strip(TiffEncoderContext * s, const int8_t * src,
uint8_t * dst, int n, int compr)
static int encode_strip(TiffEncoderContext *s, const int8_t *src,
uint8_t *dst, int n, int compr)
{
switch (compr) {
#if CONFIG_ZLIB
case TIFF_DEFLATE:
case TIFF_ADOBE_DEFLATE:
{
unsigned long zlen = s->buf_size - (*s->buf - s->buf_start);
if (compress(dst, &zlen, src, n) != Z_OK) {
av_log(s->avctx, AV_LOG_ERROR, "Compressing failed\n");
return -1;
}
return zlen;
{
unsigned long zlen = s->buf_size - (*s->buf - s->buf_start);
if (compress(dst, &zlen, src, n) != Z_OK) {
av_log(s->avctx, AV_LOG_ERROR, "Compressing failed\n");
return -1;
}
return zlen;
}
#endif
case TIFF_RAW:
if (check_size(s, n))
@ -177,7 +175,8 @@ static int encode_strip(TiffEncoderContext * s, const int8_t * src,
memcpy(dst, src, n);
return n;
case TIFF_PACKBITS:
return ff_rle_encode(dst, s->buf_size - (*s->buf - s->buf_start), src, 1, n, 2, 0xff, -1, 0);
return ff_rle_encode(dst, s->buf_size - (*s->buf - s->buf_start),
src, 1, n, 2, 0xff, -1, 0);
case TIFF_LZW:
return ff_lzw_encode(s->lzws, src, n);
default:
@ -185,14 +184,14 @@ static int encode_strip(TiffEncoderContext * s, const int8_t * src,
}
}
static void pack_yuv(TiffEncoderContext * s, uint8_t * dst, int lnum)
static void pack_yuv(TiffEncoderContext *s, uint8_t *dst, int lnum)
{
AVFrame *p = &s->picture;
int i, j, k;
int w = (s->width - 1) / s->subsampling[0] + 1;
int w = (s->width - 1) / s->subsampling[0] + 1;
uint8_t *pu = &p->data[1][lnum / s->subsampling[1] * p->linesize[1]];
uint8_t *pv = &p->data[2][lnum / s->subsampling[1] * p->linesize[2]];
for (i = 0; i < w; i++){
for (i = 0; i < w; i++) {
for (j = 0; j < s->subsampling[1]; j++)
for (k = 0; k < s->subsampling[0]; k++)
*dst++ = p->data[0][(lnum + j) * p->linesize[0] +
@ -202,7 +201,7 @@ static void pack_yuv(TiffEncoderContext * s, uint8_t * dst, int lnum)
}
}
static int encode_frame(AVCodecContext * avctx, AVPacket *pkt,
static int encode_frame(AVCodecContext *avctx, AVPacket *pkt,
const AVFrame *pict, int *got_packet)
{
TiffEncoderContext *s = avctx->priv_data;
@ -211,26 +210,26 @@ static int encode_frame(AVCodecContext * avctx, AVPacket *pkt,
uint8_t *ptr;
uint8_t *offset;
uint32_t strips;
uint32_t *strip_sizes = NULL;
uint32_t *strip_sizes = NULL;
uint32_t *strip_offsets = NULL;
int bytes_per_row;
uint32_t res[2] = { 72, 1 }; // image resolution (72/1)
uint32_t res[2] = { 72, 1 }; // image resolution (72/1)
uint16_t bpp_tab[] = { 8, 8, 8, 8 };
int ret;
int is_yuv = 0;
uint8_t *yuv_line = NULL;
int shift_h, shift_v;
const AVPixFmtDescriptor* pfd;
const AVPixFmtDescriptor *pfd;
s->avctx = avctx;
*p = *pict;
p->pict_type = AV_PICTURE_TYPE_I;
p->key_frame = 1;
avctx->coded_frame= &s->picture;
*p = *pict;
p->pict_type = AV_PICTURE_TYPE_I;
p->key_frame = 1;
avctx->coded_frame = &s->picture;
s->width = avctx->width;
s->height = avctx->height;
s->width = avctx->width;
s->height = avctx->height;
s->subsampling[0] = 1;
s->subsampling[1] = 1;
@ -240,43 +239,40 @@ static int encode_frame(AVCodecContext * avctx, AVPacket *pkt,
case AV_PIX_FMT_RGB24:
case AV_PIX_FMT_GRAY8:
case AV_PIX_FMT_PAL8:
pfd = av_pix_fmt_desc_get(avctx->pix_fmt);
pfd = av_pix_fmt_desc_get(avctx->pix_fmt);
s->bpp = av_get_bits_per_pixel(pfd);
if (pfd->flags & AV_PIX_FMT_FLAG_PAL) {
if (pfd->flags & AV_PIX_FMT_FLAG_PAL)
s->photometric_interpretation = 3;
} else if (pfd->flags & AV_PIX_FMT_FLAG_RGB) {
else if (pfd->flags & AV_PIX_FMT_FLAG_RGB)
s->photometric_interpretation = 2;
} else {
else
s->photometric_interpretation = 1;
}
s->bpp_tab_size = pfd->nb_components;
for (i = 0; i < s->bpp_tab_size; i++) {
for (i = 0; i < s->bpp_tab_size; i++)
bpp_tab[i] = s->bpp / s->bpp_tab_size;
}
break;
case AV_PIX_FMT_MONOBLACK:
s->bpp = 1;
s->bpp = 1;
s->photometric_interpretation = 1;
s->bpp_tab_size = 0;
s->bpp_tab_size = 0;
break;
case AV_PIX_FMT_MONOWHITE:
s->bpp = 1;
s->bpp = 1;
s->photometric_interpretation = 0;
s->bpp_tab_size = 0;
s->bpp_tab_size = 0;
break;
case AV_PIX_FMT_YUV420P:
case AV_PIX_FMT_YUV422P:
case AV_PIX_FMT_YUV444P:
case AV_PIX_FMT_YUV410P:
case AV_PIX_FMT_YUV411P:
av_pix_fmt_get_chroma_sub_sample(avctx->pix_fmt, &shift_h, &shift_v);
s->photometric_interpretation = 6;
av_pix_fmt_get_chroma_sub_sample(avctx->pix_fmt,
&shift_h, &shift_v);
s->bpp = 8 + (16 >> (shift_h + shift_v));
s->subsampling[0] = 1 << shift_h;
s->subsampling[1] = 1 << shift_v;
s->bpp_tab_size = 3;
is_yuv = 1;
s->bpp = 8 + (16 >> (shift_h + shift_v));
s->subsampling[0] = 1 << shift_h;
s->subsampling[1] = 1 << shift_v;
s->bpp_tab_size = 3;
is_yuv = 1;
break;
default:
av_log(s->avctx, AV_LOG_ERROR,
@ -284,18 +280,23 @@ static int encode_frame(AVCodecContext * avctx, AVPacket *pkt,
return -1;
}
if (s->compr == TIFF_DEFLATE || s->compr == TIFF_ADOBE_DEFLATE || s->compr == TIFF_LZW)
//best choose for DEFLATE
if (s->compr == TIFF_DEFLATE ||
s->compr == TIFF_ADOBE_DEFLATE ||
s->compr == TIFF_LZW)
// best choice for DEFLATE
s->rps = s->height;
else
s->rps = FFMAX(8192 / (((s->width * s->bpp) >> 3) + 1), 1); // suggest size of strip
s->rps = ((s->rps - 1) / s->subsampling[1] + 1) * s->subsampling[1]; // round rps up
// suggest size of strip
s->rps = FFMAX(8192 / (((s->width * s->bpp) >> 3) + 1), 1);
// round rps up
s->rps = ((s->rps - 1) / s->subsampling[1] + 1) * s->subsampling[1];
strips = (s->height - 1) / s->rps + 1;
if (!pkt->data &&
(ret = av_new_packet(pkt, avctx->width * avctx->height * s->bpp * 2 +
avctx->height * 4 + FF_MIN_BUFFER_SIZE)) < 0) {
(ret = av_new_packet(pkt,
avctx->width * avctx->height * s->bpp * 2 +
avctx->height * 4 + FF_MIN_BUFFER_SIZE)) < 0) {
av_log(avctx, AV_LOG_ERROR, "Error getting output packet.\n");
return ret;
}
@ -314,18 +315,18 @@ static int encode_frame(AVCodecContext * avctx, AVPacket *pkt,
offset = ptr;
bytestream_put_le32(&ptr, 0);
strip_sizes = av_mallocz(sizeof(*strip_sizes) * strips);
strip_sizes = av_mallocz(sizeof(*strip_sizes) * strips);
strip_offsets = av_mallocz(sizeof(*strip_offsets) * strips);
if (!strip_sizes || !strip_offsets) {
ret = AVERROR(ENOMEM);
goto fail;
}
bytes_per_row = (((s->width - 1)/s->subsampling[0] + 1) * s->bpp
* s->subsampling[0] * s->subsampling[1] + 7) >> 3;
if (is_yuv){
bytes_per_row = (((s->width - 1) / s->subsampling[0] + 1) * s->bpp *
s->subsampling[0] * s->subsampling[1] + 7) >> 3;
if (is_yuv) {
yuv_line = av_malloc(bytes_per_row);
if (yuv_line == NULL){
if (yuv_line == NULL) {
av_log(s->avctx, AV_LOG_ERROR, "Not enough memory\n");
ret = AVERROR(ENOMEM);
goto fail;
@ -345,14 +346,13 @@ static int encode_frame(AVCodecContext * avctx, AVPacket *pkt,
goto fail;
}
strip_offsets[0] = ptr - pkt->data;
zn = 0;
zn = 0;
for (j = 0; j < s->rps; j++) {
if (is_yuv){
if (is_yuv) {
pack_yuv(s, yuv_line, j);
memcpy(zbuf + zn, yuv_line, bytes_per_row);
j += s->subsampling[1] - 1;
}
else
} else
memcpy(zbuf + j * bytes_per_row,
p->data[0] + j * p->linesize[0], bytes_per_row);
zn += bytes_per_row;
@ -363,93 +363,93 @@ static int encode_frame(AVCodecContext * avctx, AVPacket *pkt,
av_log(s->avctx, AV_LOG_ERROR, "Encode strip failed\n");
goto fail;
}
ptr += ret;
ptr += ret;
strip_sizes[0] = ptr - pkt->data - strip_offsets[0];
} else
#endif
{
if (s->compr == TIFF_LZW) {
s->lzws = av_malloc(ff_lzw_encode_state_size);
if (!s->lzws) {
ret = AVERROR(ENOMEM);
goto fail;
}
if (s->compr == TIFF_LZW) {
s->lzws = av_malloc(ff_lzw_encode_state_size);
if (!s->lzws) {
ret = AVERROR(ENOMEM);
goto fail;
}
for (i = 0; i < s->height; i++) {
if (strip_sizes[i / s->rps] == 0) {
if(s->compr == TIFF_LZW){
ff_lzw_encode_init(s->lzws, ptr, s->buf_size - (*s->buf - s->buf_start),
12, FF_LZW_TIFF, put_bits);
}
strip_offsets[i / s->rps] = ptr - pkt->data;
}
if (is_yuv){
pack_yuv(s, yuv_line, i);
ret = encode_strip(s, yuv_line, ptr, bytes_per_row, s->compr);
i += s->subsampling[1] - 1;
}
else
ret = encode_strip(s, p->data[0] + i * p->linesize[0],
ptr, bytes_per_row, s->compr);
if (ret < 0) {
av_log(s->avctx, AV_LOG_ERROR, "Encode strip failed\n");
goto fail;
}
strip_sizes[i / s->rps] += ret;
ptr += ret;
if(s->compr == TIFF_LZW && (i==s->height-1 || i%s->rps == s->rps-1)){
ret = ff_lzw_encode_flush(s->lzws, flush_put_bits);
strip_sizes[(i / s->rps )] += ret ;
ptr += ret;
}
}
if(s->compr == TIFF_LZW)
av_free(s->lzws);
}
for (i = 0; i < s->height; i++) {
if (strip_sizes[i / s->rps] == 0) {
if (s->compr == TIFF_LZW) {
ff_lzw_encode_init(s->lzws, ptr,
s->buf_size - (*s->buf - s->buf_start),
12, FF_LZW_TIFF, put_bits);
}
strip_offsets[i / s->rps] = ptr - pkt->data;
}
if (is_yuv) {
pack_yuv(s, yuv_line, i);
ret = encode_strip(s, yuv_line, ptr, bytes_per_row, s->compr);
i += s->subsampling[1] - 1;
} else
ret = encode_strip(s, p->data[0] + i * p->linesize[0],
ptr, bytes_per_row, s->compr);
if (ret < 0) {
av_log(s->avctx, AV_LOG_ERROR, "Encode strip failed\n");
goto fail;
}
strip_sizes[i / s->rps] += ret;
ptr += ret;
if (s->compr == TIFF_LZW &&
(i == s->height - 1 || i % s->rps == s->rps - 1)) {
ret = ff_lzw_encode_flush(s->lzws, flush_put_bits);
strip_sizes[(i / s->rps)] += ret;
ptr += ret;
}
}
if (s->compr == TIFF_LZW)
av_free(s->lzws);
s->num_entries = 0;
add_entry1(s,TIFF_SUBFILE, TIFF_LONG, 0);
add_entry1(s,TIFF_WIDTH, TIFF_LONG, s->width);
add_entry1(s,TIFF_HEIGHT, TIFF_LONG, s->height);
add_entry1(s, TIFF_SUBFILE, TIFF_LONG, 0);
add_entry1(s, TIFF_WIDTH, TIFF_LONG, s->width);
add_entry1(s, TIFF_HEIGHT, TIFF_LONG, s->height);
if (s->bpp_tab_size)
add_entry(s, TIFF_BPP, TIFF_SHORT, s->bpp_tab_size, bpp_tab);
add_entry(s, TIFF_BPP, TIFF_SHORT, s->bpp_tab_size, bpp_tab);
add_entry1(s,TIFF_COMPR, TIFF_SHORT, s->compr);
add_entry1(s,TIFF_INVERT, TIFF_SHORT, s->photometric_interpretation);
add_entry(s, TIFF_STRIP_OFFS, TIFF_LONG, strips, strip_offsets);
add_entry1(s, TIFF_COMPR, TIFF_SHORT, s->compr);
add_entry1(s, TIFF_INVERT, TIFF_SHORT, s->photometric_interpretation);
add_entry(s, TIFF_STRIP_OFFS, TIFF_LONG, strips, strip_offsets);
if (s->bpp_tab_size)
add_entry1(s,TIFF_SAMPLES_PER_PIXEL, TIFF_SHORT, s->bpp_tab_size);
add_entry1(s, TIFF_SAMPLES_PER_PIXEL, TIFF_SHORT, s->bpp_tab_size);
add_entry1(s,TIFF_ROWSPERSTRIP, TIFF_LONG, s->rps);
add_entry(s, TIFF_STRIP_SIZE, TIFF_LONG, strips, strip_sizes);
add_entry(s, TIFF_XRES, TIFF_RATIONAL, 1, res);
add_entry(s, TIFF_YRES, TIFF_RATIONAL, 1, res);
add_entry1(s,TIFF_RES_UNIT, TIFF_SHORT, 2);
add_entry1(s, TIFF_ROWSPERSTRIP, TIFF_LONG, s->rps);
add_entry(s, TIFF_STRIP_SIZE, TIFF_LONG, strips, strip_sizes);
add_entry(s, TIFF_XRES, TIFF_RATIONAL, 1, res);
add_entry(s, TIFF_YRES, TIFF_RATIONAL, 1, res);
add_entry1(s, TIFF_RES_UNIT, TIFF_SHORT, 2);
if(!(avctx->flags & CODEC_FLAG_BITEXACT))
add_entry(s, TIFF_SOFTWARE_NAME, TIFF_STRING,
strlen(LIBAVCODEC_IDENT) + 1, LIBAVCODEC_IDENT);
if (!(avctx->flags & CODEC_FLAG_BITEXACT))
add_entry(s, TIFF_SOFTWARE_NAME, TIFF_STRING,
strlen(LIBAVCODEC_IDENT) + 1, LIBAVCODEC_IDENT);
if (avctx->pix_fmt == AV_PIX_FMT_PAL8) {
uint16_t pal[256 * 3];
for (i = 0; i < 256; i++) {
uint32_t rgb = *(uint32_t *) (p->data[1] + i * 4);
pal[i] = ((rgb >> 16) & 0xff) * 257;
pal[i + 256] = ((rgb >> 8 ) & 0xff) * 257;
pal[i + 512] = ( rgb & 0xff) * 257;
pal[i + 256] = ((rgb >> 8) & 0xff) * 257;
pal[i + 512] = (rgb & 0xff) * 257;
}
add_entry(s, TIFF_PAL, TIFF_SHORT, 256 * 3, pal);
}
if (is_yuv){
if (is_yuv) {
/** according to CCIR Recommendation 601.1 */
uint32_t refbw[12] = {15, 1, 235, 1, 128, 1, 240, 1, 128, 1, 240, 1};
uint32_t refbw[12] = { 15, 1, 235, 1, 128, 1, 240, 1, 128, 1, 240, 1 };
add_entry(s, TIFF_YCBCR_SUBSAMPLING, TIFF_SHORT, 2, s->subsampling);
add_entry(s, TIFF_REFERENCE_BW, TIFF_RATIONAL, 6, refbw);
}
bytestream_put_le32(&offset, ptr - pkt->data); // write offset to dir
// write offset to dir
bytestream_put_le32(&offset, ptr - pkt->data);
if (check_size(s, 6 + s->num_entries * 12)) {
ret = AVERROR(EINVAL);
@ -473,12 +473,12 @@ fail:
#define OFFSET(x) offsetof(TiffEncoderContext, x)
#define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
static const AVOption options[] = {
{ "compression_algo", NULL, OFFSET(compr), AV_OPT_TYPE_INT, {.i64 = TIFF_PACKBITS}, TIFF_RAW, TIFF_DEFLATE, VE, "compression_algo" },
{ "packbits", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = TIFF_PACKBITS}, 0, 0, VE, "compression_algo" },
{ "raw", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = TIFF_RAW}, 0, 0, VE, "compression_algo" },
{ "lzw", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = TIFF_LZW}, 0, 0, VE, "compression_algo" },
{ "compression_algo", NULL, OFFSET(compr), AV_OPT_TYPE_INT, { .i64 = TIFF_PACKBITS }, TIFF_RAW, TIFF_DEFLATE, VE, "compression_algo" },
{ "packbits", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = TIFF_PACKBITS }, 0, 0, VE, "compression_algo" },
{ "raw", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = TIFF_RAW }, 0, 0, VE, "compression_algo" },
{ "lzw", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = TIFF_LZW }, 0, 0, VE, "compression_algo" },
#if CONFIG_ZLIB
{ "deflate", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = TIFF_DEFLATE}, 0, 0, VE, "compression_algo" },
{ "deflate", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = TIFF_DEFLATE }, 0, 0, VE, "compression_algo" },
#endif
{ NULL },
};
@ -492,6 +492,7 @@ static const AVClass tiffenc_class = {
AVCodec ff_tiff_encoder = {
.name = "tiff",
.long_name = NULL_IF_CONFIG_SMALL("TIFF image"),
.type = AVMEDIA_TYPE_VIDEO,
.id = AV_CODEC_ID_TIFF,
.priv_data_size = sizeof(TiffEncoderContext),
@ -504,6 +505,5 @@ AVCodec ff_tiff_encoder = {
AV_PIX_FMT_YUV410P, AV_PIX_FMT_YUV411P,
AV_PIX_FMT_NONE
},
.long_name = NULL_IF_CONFIG_SMALL("TIFF image"),
.priv_class = &tiffenc_class,
};