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jpeg2000dec.c File Reference

JPEG 2000 image decoder. More...

#include <inttypes.h>
#include "libavutil/attributes.h"
#include "libavutil/avassert.h"
#include "libavutil/common.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "avcodec.h"
#include "bytestream.h"
#include "internal.h"
#include "thread.h"
#include "jpeg2000.h"
#include "jpeg2000dsp.h"

Go to the source code of this file.

Data Structures

struct  Jpeg2000TilePart
 
struct  Jpeg2000Tile
 
struct  Jpeg2000DecoderContext
 

Macros

#define JP2_SIG_TYPE   0x6A502020
 
#define JP2_SIG_VALUE   0x0D0A870A
 
#define JP2_CODESTREAM   0x6A703263
 
#define JP2_HEADER   0x6A703268
 
#define HAD_COC   0x01
 
#define HAD_QCC   0x02
 
#define RGB_PIXEL_FORMATS   AV_PIX_FMT_PAL8,AV_PIX_FMT_RGB24,AV_PIX_FMT_RGBA,AV_PIX_FMT_RGB48,AV_PIX_FMT_RGBA64
 
#define GRAY_PIXEL_FORMATS   AV_PIX_FMT_GRAY8,AV_PIX_FMT_GRAY8A,AV_PIX_FMT_GRAY16,AV_PIX_FMT_YA16
 
#define YUV_PIXEL_FORMATS
 
#define XYZ_PIXEL_FORMATS   AV_PIX_FMT_XYZ12
 
#define OFFSET(x)   offsetof(Jpeg2000DecoderContext, x)
 
#define VD   AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM
 

Functions

static int get_bits (Jpeg2000DecoderContext *s, int n)
 
static void jpeg2000_flush (Jpeg2000DecoderContext *s)
 
static int tag_tree_decode (Jpeg2000DecoderContext *s, Jpeg2000TgtNode *node, int threshold)
 
static int pix_fmt_match (enum AVPixelFormat pix_fmt, int components, int bpc, uint32_t log2_chroma_wh, int pal8)
 
static int get_siz (Jpeg2000DecoderContext *s)
 
static int get_cox (Jpeg2000DecoderContext *s, Jpeg2000CodingStyle *c)
 
static int get_cod (Jpeg2000DecoderContext *s, Jpeg2000CodingStyle *c, uint8_t *properties)
 
static int get_coc (Jpeg2000DecoderContext *s, Jpeg2000CodingStyle *c, uint8_t *properties)
 
static int get_qcx (Jpeg2000DecoderContext *s, int n, Jpeg2000QuantStyle *q)
 
static int get_qcd (Jpeg2000DecoderContext *s, int n, Jpeg2000QuantStyle *q, uint8_t *properties)
 
static int get_qcc (Jpeg2000DecoderContext *s, int n, Jpeg2000QuantStyle *q, uint8_t *properties)
 
static int get_sot (Jpeg2000DecoderContext *s, int n)
 
static uint8_t get_tlm (Jpeg2000DecoderContext *s, int n)
 
static int init_tile (Jpeg2000DecoderContext *s, int tileno)
 
static int getnpasses (Jpeg2000DecoderContext *s)
 
static int getlblockinc (Jpeg2000DecoderContext *s)
 
static int jpeg2000_decode_packet (Jpeg2000DecoderContext *s, Jpeg2000CodingStyle *codsty, Jpeg2000ResLevel *rlevel, int precno, int layno, uint8_t *expn, int numgbits)
 
static int jpeg2000_decode_packets (Jpeg2000DecoderContext *s, Jpeg2000Tile *tile)
 
static void decode_sigpass (Jpeg2000T1Context *t1, int width, int height, int bpno, int bandno, int bpass_csty_symbol, int vert_causal_ctx_csty_symbol)
 
static void decode_refpass (Jpeg2000T1Context *t1, int width, int height, int bpno)
 
static void decode_clnpass (Jpeg2000DecoderContext *s, Jpeg2000T1Context *t1, int width, int height, int bpno, int bandno, int seg_symbols, int vert_causal_ctx_csty_symbol)
 
static int decode_cblk (Jpeg2000DecoderContext *s, Jpeg2000CodingStyle *codsty, Jpeg2000T1Context *t1, Jpeg2000Cblk *cblk, int width, int height, int bandpos)
 
static void dequantization_float (int x, int y, Jpeg2000Cblk *cblk, Jpeg2000Component *comp, Jpeg2000T1Context *t1, Jpeg2000Band *band)
 
static void dequantization_int (int x, int y, Jpeg2000Cblk *cblk, Jpeg2000Component *comp, Jpeg2000T1Context *t1, Jpeg2000Band *band)
 
static void mct_decode (Jpeg2000DecoderContext *s, Jpeg2000Tile *tile)
 
static int jpeg2000_decode_tile (Jpeg2000DecoderContext *s, Jpeg2000Tile *tile, AVFrame *picture)
 
static void jpeg2000_dec_cleanup (Jpeg2000DecoderContext *s)
 
static int jpeg2000_read_main_headers (Jpeg2000DecoderContext *s)
 
static int jpeg2000_read_bitstream_packets (Jpeg2000DecoderContext *s)
 
static int jp2_find_codestream (Jpeg2000DecoderContext *s)
 
static av_cold int jpeg2000_decode_init (AVCodecContext *avctx)
 
static int jpeg2000_decode_frame (AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
 
static av_cold void jpeg2000_init_static_data (AVCodec *codec)
 

Variables

static enum AVPixelFormat rgb_pix_fmts [] = {RGB_PIXEL_FORMATS}
 
static enum AVPixelFormat gray_pix_fmts [] = {GRAY_PIXEL_FORMATS}
 
static enum AVPixelFormat yuv_pix_fmts [] = {YUV_PIXEL_FORMATS}
 
static enum AVPixelFormat xyz_pix_fmts [] = {XYZ_PIXEL_FORMATS}
 
static enum AVPixelFormat all_pix_fmts []
 
static const AVOption options []
 
static const AVProfile profiles []
 
static const AVClass jpeg2000_class
 
AVCodec ff_jpeg2000_decoder
 

Detailed Description

JPEG 2000 image decoder.

Definition in file jpeg2000dec.c.

Macro Definition Documentation

#define JP2_SIG_TYPE   0x6A502020

Definition at line 42 of file jpeg2000dec.c.

Referenced by jpeg2000_decode_frame().

#define JP2_SIG_VALUE   0x0D0A870A

Definition at line 43 of file jpeg2000dec.c.

Referenced by jpeg2000_decode_frame().

#define JP2_CODESTREAM   0x6A703263

Definition at line 44 of file jpeg2000dec.c.

Referenced by jp2_find_codestream().

#define JP2_HEADER   0x6A703268

Definition at line 45 of file jpeg2000dec.c.

Referenced by jp2_find_codestream().

#define HAD_COC   0x01

Definition at line 47 of file jpeg2000dec.c.

Referenced by get_coc(), and get_cod().

#define HAD_QCC   0x02

Definition at line 48 of file jpeg2000dec.c.

Referenced by get_qcc(), and get_qcd().

#define RGB_PIXEL_FORMATS   AV_PIX_FMT_PAL8,AV_PIX_FMT_RGB24,AV_PIX_FMT_RGBA,AV_PIX_FMT_RGB48,AV_PIX_FMT_RGBA64

Definition at line 203 of file jpeg2000dec.c.

#define GRAY_PIXEL_FORMATS   AV_PIX_FMT_GRAY8,AV_PIX_FMT_GRAY8A,AV_PIX_FMT_GRAY16,AV_PIX_FMT_YA16

Definition at line 204 of file jpeg2000dec.c.

#define YUV_PIXEL_FORMATS
Value:
AV_PIX_FMT_YUV410P,AV_PIX_FMT_YUV411P,AV_PIX_FMT_YUVA420P, \
AV_PIX_FMT_YUV420P,AV_PIX_FMT_YUV422P,AV_PIX_FMT_YUVA422P, \
AV_PIX_FMT_YUV440P,AV_PIX_FMT_YUV444P,AV_PIX_FMT_YUVA444P, \
AV_PIX_FMT_YUV420P9,AV_PIX_FMT_YUV422P9,AV_PIX_FMT_YUV444P9, \
AV_PIX_FMT_YUVA420P9,AV_PIX_FMT_YUVA422P9,AV_PIX_FMT_YUVA444P9, \
AV_PIX_FMT_YUV420P10,AV_PIX_FMT_YUV422P10,AV_PIX_FMT_YUV444P10, \
AV_PIX_FMT_YUVA420P10,AV_PIX_FMT_YUVA422P10,AV_PIX_FMT_YUVA444P10, \
AV_PIX_FMT_YUV420P12,AV_PIX_FMT_YUV422P12,AV_PIX_FMT_YUV444P12, \
AV_PIX_FMT_YUV420P14,AV_PIX_FMT_YUV422P14,AV_PIX_FMT_YUV444P14, \
AV_PIX_FMT_YUV420P16,AV_PIX_FMT_YUV422P16,AV_PIX_FMT_YUV444P16, \
AV_PIX_FMT_YUVA420P16,AV_PIX_FMT_YUVA422P16,AV_PIX_FMT_YUVA444P16
AV_PIX_FMT_YUVA422P16
#define AV_PIX_FMT_YUVA422P16
Definition: pixfmt.h:391
AV_PIX_FMT_YUVA422P9
#define AV_PIX_FMT_YUVA422P9
Definition: pixfmt.h:385
AV_PIX_FMT_YUVA420P10
#define AV_PIX_FMT_YUVA420P10
Definition: pixfmt.h:387
AV_PIX_FMT_YUV444P14
#define AV_PIX_FMT_YUV444P14
Definition: pixfmt.h:366
AV_PIX_FMT_YUVA422P10
#define AV_PIX_FMT_YUVA422P10
Definition: pixfmt.h:388
AV_PIX_FMT_YUV444P
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:73
AV_PIX_FMT_YUV420P12
#define AV_PIX_FMT_YUV420P12
Definition: pixfmt.h:361
AV_PIX_FMT_YUVA420P
planar YUV 4:2:0, 20bpp, (1 Cr & Cb sample per 2x2 Y & A samples)
Definition: pixfmt.h:108
AV_PIX_FMT_YUVA420P9
#define AV_PIX_FMT_YUVA420P9
Definition: pixfmt.h:384
AV_PIX_FMT_YUV444P16
#define AV_PIX_FMT_YUV444P16
Definition: pixfmt.h:369
AV_PIX_FMT_YUV422P12
#define AV_PIX_FMT_YUV422P12
Definition: pixfmt.h:362
AV_PIX_FMT_YUVA420P16
#define AV_PIX_FMT_YUVA420P16
Definition: pixfmt.h:390
AV_PIX_FMT_YUVA422P
planar YUV 4:2:2 24bpp, (1 Cr & Cb sample per 2x1 Y & A samples)
Definition: pixfmt.h:267
AV_PIX_FMT_YUVA444P16
#define AV_PIX_FMT_YUVA444P16
Definition: pixfmt.h:392
AV_PIX_FMT_YUV444P10
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:360
AV_PIX_FMT_YUV422P
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:72
AV_PIX_FMT_YUV422P9
#define AV_PIX_FMT_YUV422P9
Definition: pixfmt.h:356
AV_PIX_FMT_YUVA444P10
#define AV_PIX_FMT_YUVA444P10
Definition: pixfmt.h:389
AV_PIX_FMT_YUV444P9
#define AV_PIX_FMT_YUV444P9
Definition: pixfmt.h:357
AV_PIX_FMT_YUV420P16
#define AV_PIX_FMT_YUV420P16
Definition: pixfmt.h:367
AV_PIX_FMT_YUV420P14
#define AV_PIX_FMT_YUV420P14
Definition: pixfmt.h:364
AV_PIX_FMT_YUVA444P
planar YUV 4:4:4 32bpp, (1 Cr & Cb sample per 1x1 Y & A samples)
Definition: pixfmt.h:266
AV_PIX_FMT_YUV420P10
#define AV_PIX_FMT_YUV420P10
Definition: pixfmt.h:358
AV_PIX_FMT_YUV410P
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
Definition: pixfmt.h:74
AV_PIX_FMT_YUV420P9
#define AV_PIX_FMT_YUV420P9
Definition: pixfmt.h:355
AV_PIX_FMT_YUV422P14
#define AV_PIX_FMT_YUV422P14
Definition: pixfmt.h:365
AV_PIX_FMT_YUV422P10
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:359
AV_PIX_FMT_YUV444P12
#define AV_PIX_FMT_YUV444P12
Definition: pixfmt.h:363
AV_PIX_FMT_YUV420P
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:68
AV_PIX_FMT_YUVA444P9
#define AV_PIX_FMT_YUVA444P9
Definition: pixfmt.h:386
AV_PIX_FMT_YUV411P
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
Definition: pixfmt.h:75
AV_PIX_FMT_YUV440P
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
Definition: pixfmt.h:106
AV_PIX_FMT_YUV422P16
#define AV_PIX_FMT_YUV422P16
Definition: pixfmt.h:368

Definition at line 205 of file jpeg2000dec.c.

#define XYZ_PIXEL_FORMATS   AV_PIX_FMT_XYZ12

Definition at line 216 of file jpeg2000dec.c.

#define OFFSET (   x)    offsetof(Jpeg2000DecoderContext, x)

Definition at line 1685 of file jpeg2000dec.c.

#define VD   AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM

Definition at line 1686 of file jpeg2000dec.c.

Function Documentation

static int get_bits ( Jpeg2000DecoderContext *  s,
int  n 
)
static

Definition at line 107 of file jpeg2000dec.c.

Referenced by getlblockinc(), getnpasses(), jpeg2000_decode_packet(), and tag_tree_decode().

static void jpeg2000_flush ( Jpeg2000DecoderContext *  s)
static

Definition at line 122 of file jpeg2000dec.c.

Referenced by jpeg2000_decode_packet().

static int tag_tree_decode ( Jpeg2000DecoderContext *  s,
Jpeg2000TgtNode *  node,
int  threshold 
)
static

Definition at line 130 of file jpeg2000dec.c.

Referenced by jpeg2000_decode_packet().

static int pix_fmt_match ( enum AVPixelFormat  pix_fmt,
int  components,
int  bpc,
uint32_t  log2_chroma_wh,
int  pal8 
)
static

Definition at line 168 of file jpeg2000dec.c.

Referenced by get_siz().

static int get_siz ( Jpeg2000DecoderContext *  s)
static

Definition at line 229 of file jpeg2000dec.c.

Referenced by jpeg2000_read_main_headers().

static int get_cox ( Jpeg2000DecoderContext *  s,
Jpeg2000CodingStyle *  c 
)
static

Definition at line 373 of file jpeg2000dec.c.

Referenced by get_coc(), and get_cod().

static int get_cod ( Jpeg2000DecoderContext *  s,
Jpeg2000CodingStyle *  c,
uint8_t *  properties 
)
static

Definition at line 439 of file jpeg2000dec.c.

Referenced by jpeg2000_read_main_headers().

static int get_coc ( Jpeg2000DecoderContext *  s,
Jpeg2000CodingStyle *  c,
uint8_t *  properties 
)
static

Definition at line 474 of file jpeg2000dec.c.

Referenced by jpeg2000_read_main_headers().

static int get_qcx ( Jpeg2000DecoderContext *  s,
int  n,
Jpeg2000QuantStyle *  q 
)
static

Definition at line 502 of file jpeg2000dec.c.

Referenced by get_qcc(), and get_qcd().

static int get_qcd ( Jpeg2000DecoderContext *  s,
int  n,
Jpeg2000QuantStyle *  q,
uint8_t *  properties 
)
static

Definition at line 547 of file jpeg2000dec.c.

Referenced by jpeg2000_read_main_headers().

static int get_qcc ( Jpeg2000DecoderContext *  s,
int  n,
Jpeg2000QuantStyle *  q,
uint8_t *  properties 
)
static

Definition at line 565 of file jpeg2000dec.c.

Referenced by jpeg2000_read_main_headers().

static int get_sot ( Jpeg2000DecoderContext *  s,
int  n 
)
static

Definition at line 587 of file jpeg2000dec.c.

Referenced by jpeg2000_read_main_headers().

static uint8_t get_tlm ( Jpeg2000DecoderContext *  s,
int  n 
)
static

Definition at line 643 of file jpeg2000dec.c.

Referenced by jpeg2000_read_main_headers().

static int init_tile ( Jpeg2000DecoderContext *  s,
int  tileno 
)
static

Definition at line 677 of file jpeg2000dec.c.

Referenced by jpeg2000_read_bitstream_packets().

static int getnpasses ( Jpeg2000DecoderContext *  s)
static

Definition at line 712 of file jpeg2000dec.c.

Referenced by jpeg2000_decode_packet().

static int getlblockinc ( Jpeg2000DecoderContext *  s)
static

Definition at line 727 of file jpeg2000dec.c.

Referenced by jpeg2000_decode_packet().

static int jpeg2000_decode_packet ( Jpeg2000DecoderContext *  s,
Jpeg2000CodingStyle *  codsty,
Jpeg2000ResLevel *  rlevel,
int  precno,
int  layno,
uint8_t *  expn,
int  numgbits 
)
static

Definition at line 738 of file jpeg2000dec.c.

Referenced by jpeg2000_decode_packets().

static int jpeg2000_decode_packets ( Jpeg2000DecoderContext *  s,
Jpeg2000Tile *  tile 
)
static

Definition at line 833 of file jpeg2000dec.c.

Referenced by jpeg2000_read_bitstream_packets().

static void decode_sigpass ( Jpeg2000T1Context *  t1,
int  width,
int  height,
int  bpno,
int  bandno,
int  bpass_csty_symbol,
int  vert_causal_ctx_csty_symbol 
)
static

Definition at line 942 of file jpeg2000dec.c.

Referenced by decode_cblk().

static void decode_refpass ( Jpeg2000T1Context *  t1,
int  width,
int  height,
int  bpno 
)
static

Definition at line 972 of file jpeg2000dec.c.

Referenced by decode_cblk().

static void decode_clnpass ( Jpeg2000DecoderContext *  s,
Jpeg2000T1Context *  t1,
int  width,
int  height,
int  bpno,
int  bandno,
int  seg_symbols,
int  vert_causal_ctx_csty_symbol 
)
static

Definition at line 994 of file jpeg2000dec.c.

Referenced by decode_cblk().

static int decode_cblk ( Jpeg2000DecoderContext *  s,
Jpeg2000CodingStyle *  codsty,
Jpeg2000T1Context *  t1,
Jpeg2000Cblk *  cblk,
int  width,
int  height,
int  bandpos 
)
static

Definition at line 1057 of file jpeg2000dec.c.

Referenced by jpeg2000_decode_tile().

static void dequantization_float ( int  x,
int  y,
Jpeg2000Cblk *  cblk,
Jpeg2000Component *  comp,
Jpeg2000T1Context *  t1,
Jpeg2000Band *  band 
)
static

Definition at line 1125 of file jpeg2000dec.c.

Referenced by jpeg2000_decode_tile().

static void dequantization_int ( int  x,
int  y,
Jpeg2000Cblk *  cblk,
Jpeg2000Component *  comp,
Jpeg2000T1Context *  t1,
Jpeg2000Band *  band 
)
static

Definition at line 1140 of file jpeg2000dec.c.

Referenced by jpeg2000_decode_tile().

static void mct_decode ( Jpeg2000DecoderContext *  s,
Jpeg2000Tile *  tile 
)
inlinestatic

Definition at line 1154 of file jpeg2000dec.c.

Referenced by jpeg2000_decode_tile().

static int jpeg2000_decode_tile ( Jpeg2000DecoderContext *  s,
Jpeg2000Tile *  tile,
AVFrame *  picture 
)
static

Definition at line 1182 of file jpeg2000dec.c.

Referenced by jpeg2000_decode_frame().

static void jpeg2000_dec_cleanup ( Jpeg2000DecoderContext *  s)
static

Definition at line 1353 of file jpeg2000dec.c.

Referenced by jpeg2000_decode_frame().

static int jpeg2000_read_main_headers ( Jpeg2000DecoderContext *  s)
static

Definition at line 1374 of file jpeg2000dec.c.

Referenced by jpeg2000_decode_frame().

static int jpeg2000_read_bitstream_packets ( Jpeg2000DecoderContext *  s)
static

Definition at line 1480 of file jpeg2000dec.c.

Referenced by jpeg2000_decode_frame().

static int jp2_find_codestream ( Jpeg2000DecoderContext *  s)
static

Definition at line 1499 of file jpeg2000dec.c.

Referenced by jpeg2000_decode_frame().

static av_cold int jpeg2000_decode_init ( AVCodecContext *  avctx)
static

Definition at line 1599 of file jpeg2000dec.c.

static int jpeg2000_decode_frame ( AVCodecContext *  avctx,
void *  data,
int *  got_frame,
AVPacket *  avpkt 
)
static

Definition at line 1608 of file jpeg2000dec.c.

static av_cold void jpeg2000_init_static_data ( AVCodec *  codec)
static

Definition at line 1679 of file jpeg2000dec.c.

Variable Documentation

enum AVPixelFormat rgb_pix_fmts[] = {RGB_PIXEL_FORMATS}
static

Definition at line 218 of file jpeg2000dec.c.

Referenced by geq_query_formats(), and get_siz().

enum AVPixelFormat gray_pix_fmts[] = {GRAY_PIXEL_FORMATS}
static

Definition at line 219 of file jpeg2000dec.c.

Referenced by get_siz().

enum AVPixelFormat yuv_pix_fmts[] = {YUV_PIXEL_FORMATS}
static

Definition at line 220 of file jpeg2000dec.c.

Referenced by geq_query_formats(), and get_siz().

enum AVPixelFormat xyz_pix_fmts[] = {XYZ_PIXEL_FORMATS}
static

Definition at line 221 of file jpeg2000dec.c.

Referenced by get_siz().

enum AVPixelFormat all_pix_fmts[]
static
Initial value:
= {RGB_PIXEL_FORMATS,
GRAY_PIXEL_FORMATS,
YUV_PIXEL_FORMATS,
XYZ_PIXEL_FORMATS}
RGB_PIXEL_FORMATS
#define RGB_PIXEL_FORMATS
Definition: jpeg2000dec.c:203
YUV_PIXEL_FORMATS
#define YUV_PIXEL_FORMATS
Definition: jpeg2000dec.c:205
XYZ_PIXEL_FORMATS
#define XYZ_PIXEL_FORMATS
Definition: jpeg2000dec.c:216
GRAY_PIXEL_FORMATS
#define GRAY_PIXEL_FORMATS
Definition: jpeg2000dec.c:204

Definition at line 222 of file jpeg2000dec.c.

Referenced by get_siz().

const AVOption options[]
static
Initial value:
= {
{ "lowres", "Lower the decoding resolution by a power of two",
OFFSET(reduction_factor), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, JPEG2000_MAX_RESLEVELS - 1, VD },
{ NULL },
}
NULL
#define NULL
Definition: coverity.c:32
OFFSET
#define OFFSET(x)
Definition: jpeg2000dec.c:1685
AV_OPT_TYPE_INT
Definition: opt.h:223
JPEG2000_MAX_RESLEVELS
#define JPEG2000_MAX_RESLEVELS
Definition: jpeg2000.h:72
VD
#define VD
Definition: jpeg2000dec.c:1686

Definition at line 1688 of file jpeg2000dec.c.

const AVProfile profiles[]
static
Initial value:
= {
{ FF_PROFILE_JPEG2000_CSTREAM_RESTRICTION_0, "JPEG 2000 codestream restriction 0" },
{ FF_PROFILE_JPEG2000_CSTREAM_RESTRICTION_1, "JPEG 2000 codestream restriction 1" },
{ FF_PROFILE_JPEG2000_CSTREAM_NO_RESTRICTION, "JPEG 2000 no codestream restrictions" },
{ FF_PROFILE_JPEG2000_DCINEMA_2K, "JPEG 2000 digital cinema 2K" },
{ FF_PROFILE_JPEG2000_DCINEMA_4K, "JPEG 2000 digital cinema 4K" },
{ FF_PROFILE_UNKNOWN },
}
FF_PROFILE_JPEG2000_CSTREAM_NO_RESTRICTION
#define FF_PROFILE_JPEG2000_CSTREAM_NO_RESTRICTION
Definition: avcodec.h:2902
FF_PROFILE_JPEG2000_CSTREAM_RESTRICTION_1
#define FF_PROFILE_JPEG2000_CSTREAM_RESTRICTION_1
Definition: avcodec.h:2901
FF_PROFILE_UNKNOWN
#define FF_PROFILE_UNKNOWN
Definition: avcodec.h:2834
FF_PROFILE_JPEG2000_CSTREAM_RESTRICTION_0
#define FF_PROFILE_JPEG2000_CSTREAM_RESTRICTION_0
Definition: avcodec.h:2900
FF_PROFILE_JPEG2000_DCINEMA_4K
#define FF_PROFILE_JPEG2000_DCINEMA_4K
Definition: avcodec.h:2904
FF_PROFILE_JPEG2000_DCINEMA_2K
#define FF_PROFILE_JPEG2000_DCINEMA_2K
Definition: avcodec.h:2903

Definition at line 1694 of file jpeg2000dec.c.

const AVClass jpeg2000_class
static
Initial value:
= {
.class_name = "jpeg2000",
.item_name = av_default_item_name,
.option = options,
.version = LIBAVUTIL_VERSION_INT,
}
LIBAVUTIL_VERSION_INT
#define LIBAVUTIL_VERSION_INT
Definition: version.h:62
av_default_item_name
av_default_item_name
Definition: libopenh264enc.c:59
options
static const AVOption options[]
Definition: jpeg2000dec.c:1688

Definition at line 1703 of file jpeg2000dec.c.

AVCodec ff_jpeg2000_decoder
Initial value:
= {
.name = "jpeg2000",
.long_name = NULL_IF_CONFIG_SMALL("JPEG 2000"),
.type = AVMEDIA_TYPE_VIDEO,
.id = AV_CODEC_ID_JPEG2000,
.capabilities = CODEC_CAP_FRAME_THREADS,
.priv_data_size = sizeof(Jpeg2000DecoderContext),
.init_static_data = jpeg2000_init_static_data,
.init = jpeg2000_decode_init,
.decode = jpeg2000_decode_frame,
.priv_class = &jpeg2000_class,
.max_lowres = 5,
.profiles = NULL_IF_CONFIG_SMALL(profiles)
}
init
static av_cold int init(AVCodecContext *avctx)
Definition: avrndec.c:35
jpeg2000_decode_init
static av_cold int jpeg2000_decode_init(AVCodecContext *avctx)
Definition: jpeg2000dec.c:1599
jpeg2000_decode_frame
static int jpeg2000_decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
Definition: jpeg2000dec.c:1608
init_static_data
static av_cold void init_static_data(void)
Definition: dsddec.c:82
NULL_IF_CONFIG_SMALL
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:180
jpeg2000_class
static const AVClass jpeg2000_class
Definition: jpeg2000dec.c:1703
jpeg2000_init_static_data
static av_cold void jpeg2000_init_static_data(AVCodec *codec)
Definition: jpeg2000dec.c:1679
profiles
static const AVProfile profiles[]
Definition: jpeg2000dec.c:1694
AV_CODEC_ID_JPEG2000
Definition: avcodec.h:196
decode
static int decode(AVCodecContext *avctx, void *data, int *got_sub, AVPacket *avpkt)
Definition: ccaption_dec.c:520
CODEC_CAP_FRAME_THREADS
#define CODEC_CAP_FRAME_THREADS
Codec supports frame-level multithreading.
Definition: avcodec.h:864
AVMEDIA_TYPE_VIDEO
Definition: avutil.h:194

Definition at line 1710 of file jpeg2000dec.c.

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