FFmpeg
Macros | Functions | Variables
jpeg2000dec.c File Reference
#include <inttypes.h>
#include <math.h>
#include "libavutil/attributes.h"
#include "libavutil/avassert.h"
#include "libavutil/common.h"
#include "libavutil/imgutils.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "avcodec.h"
#include "bytestream.h"
#include "codec_internal.h"
#include "decode.h"
#include "thread.h"
#include "jpeg2000.h"
#include "jpeg2000dsp.h"
#include "profiles.h"
#include "jpeg2000dec.h"
#include "jpeg2000htdec.h"

Go to the source code of this file.

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 WRITE_FRAME(D, PIXEL)
 
#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, const uint8_t *properties)
 
static int get_coc (Jpeg2000DecoderContext *s, Jpeg2000CodingStyle *c, uint8_t *properties)
 
static int get_rgn (Jpeg2000DecoderContext *s, int n)
 
static int get_qcx (Jpeg2000DecoderContext *s, int n, Jpeg2000QuantStyle *q)
 
static int get_qcd (Jpeg2000DecoderContext *s, int n, Jpeg2000QuantStyle *q, const uint8_t *properties)
 
static int get_qcc (Jpeg2000DecoderContext *s, int n, Jpeg2000QuantStyle *q, uint8_t *properties)
 
static int get_poc (Jpeg2000DecoderContext *s, int size, Jpeg2000POC *p)
 
static int get_sot (Jpeg2000DecoderContext *s, int n)
 
static int read_crg (Jpeg2000DecoderContext *s, int n)
 
static int get_tlm (Jpeg2000DecoderContext *s, int n)
 
static int get_plt (Jpeg2000DecoderContext *s, int n)
 
static int get_ppm (Jpeg2000DecoderContext *s, int n)
 
static int get_ppt (Jpeg2000DecoderContext *s, int n)
 
static int init_tile (Jpeg2000DecoderContext *s, int tileno)
 
static int getnpasses (Jpeg2000DecoderContext *s)
 
static int getlblockinc (Jpeg2000DecoderContext *s)
 
static void select_header (Jpeg2000DecoderContext *s, const Jpeg2000Tile *tile, int *tp_index)
 
static void select_stream (Jpeg2000DecoderContext *s, const Jpeg2000Tile *tile, int *tp_index, const Jpeg2000CodingStyle *codsty)
 
static int jpeg2000_decode_packet (Jpeg2000DecoderContext *s, Jpeg2000Tile *tile, int *tp_index, const Jpeg2000CodingStyle *codsty, Jpeg2000ResLevel *rlevel, int precno, int layno, const uint8_t *expn, int numgbits)
 
static int jpeg2000_decode_packets_po_iteration (Jpeg2000DecoderContext *s, Jpeg2000Tile *tile, int RSpoc, int CSpoc, int LYEpoc, int REpoc, int CEpoc, int Ppoc, int *tp_index)
 
static int jpeg2000_decode_packets (Jpeg2000DecoderContext *s, Jpeg2000Tile *tile)
 
static void decode_sigpass (Jpeg2000T1Context *t1, int width, int height, int bpno, int bandno, int vert_causal_ctx_csty_symbol)
 
static void decode_refpass (Jpeg2000T1Context *t1, int width, int height, int bpno, int vert_causal_ctx_csty_symbol)
 
static void decode_clnpass (const 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 (const Jpeg2000DecoderContext *s, Jpeg2000CodingStyle *codsty, Jpeg2000T1Context *t1, Jpeg2000Cblk *cblk, int width, int height, int bandpos, uint8_t roi_shift)
 
static int roi_shift_param (Jpeg2000Component *comp, int quan_parameter)
 
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 dequantization_int_97 (int x, int y, Jpeg2000Cblk *cblk, Jpeg2000Component *comp, Jpeg2000T1Context *t1, Jpeg2000Band *band)
 
static void mct_decode (const Jpeg2000DecoderContext *s, Jpeg2000Tile *tile)
 
static void roi_scale_cblk (Jpeg2000Cblk *cblk, Jpeg2000Component *comp, Jpeg2000T1Context *t1)
 
static int tile_codeblocks (const Jpeg2000DecoderContext *s, Jpeg2000Tile *tile)
 
static int jpeg2000_decode_tile (AVCodecContext *avctx, void *td, int jobnr, int threadnr)
 
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, AVFrame *picture, int *got_frame, AVPacket *avpkt)
 

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 []
 
static enum AVPixelFormat all_pix_fmts []
 
static const AVOption options []
 
static const AVClass jpeg2000_class
 
const FFCodec ff_jpeg2000_decoder
 

Detailed Description

JPEG 2000 image decoder

Definition in file jpeg2000dec.c.

Macro Definition Documentation

◆ JP2_SIG_TYPE

#define JP2_SIG_TYPE   0x6A502020

Definition at line 48 of file jpeg2000dec.c.

◆ JP2_SIG_VALUE

#define JP2_SIG_VALUE   0x0D0A870A

Definition at line 49 of file jpeg2000dec.c.

◆ JP2_CODESTREAM

#define JP2_CODESTREAM   0x6A703263

Definition at line 50 of file jpeg2000dec.c.

◆ JP2_HEADER

#define JP2_HEADER   0x6A703268

Definition at line 51 of file jpeg2000dec.c.

◆ HAD_COC

#define HAD_COC   0x01

Definition at line 53 of file jpeg2000dec.c.

◆ HAD_QCC

#define HAD_QCC   0x02

Definition at line 54 of file jpeg2000dec.c.

◆ RGB_PIXEL_FORMATS

#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 160 of file jpeg2000dec.c.

◆ GRAY_PIXEL_FORMATS

#define GRAY_PIXEL_FORMATS   AV_PIX_FMT_GRAY8,AV_PIX_FMT_GRAY8A,AV_PIX_FMT_GRAY16,AV_PIX_FMT_YA16

Definition at line 161 of file jpeg2000dec.c.

◆ YUV_PIXEL_FORMATS

#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

Definition at line 162 of file jpeg2000dec.c.

◆ XYZ_PIXEL_FORMATS

#define XYZ_PIXEL_FORMATS   AV_PIX_FMT_XYZ12

Definition at line 173 of file jpeg2000dec.c.

◆ WRITE_FRAME

#define WRITE_FRAME (   D,
  PIXEL 
)

Definition at line 1976 of file jpeg2000dec.c.

◆ OFFSET

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

Definition at line 2538 of file jpeg2000dec.c.

◆ VD

#define VD   AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM

Definition at line 2539 of file jpeg2000dec.c.

Function Documentation

◆ get_bits()

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

Definition at line 60 of file jpeg2000dec.c.

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

◆ jpeg2000_flush()

static void jpeg2000_flush ( Jpeg2000DecoderContext *  s)
static

Definition at line 75 of file jpeg2000dec.c.

Referenced by jpeg2000_decode_packet().

◆ tag_tree_decode()

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

Definition at line 83 of file jpeg2000dec.c.

Referenced by jpeg2000_decode_packet().

◆ pix_fmt_match()

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

Definition at line 123 of file jpeg2000dec.c.

Referenced by get_siz().

◆ get_siz()

static int get_siz ( Jpeg2000DecoderContext *  s)
static

Definition at line 187 of file jpeg2000dec.c.

Referenced by jpeg2000_read_main_headers().

◆ get_cox()

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

Definition at line 412 of file jpeg2000dec.c.

Referenced by get_coc(), and get_cod().

◆ get_cod()

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

Definition at line 491 of file jpeg2000dec.c.

Referenced by jpeg2000_read_main_headers().

◆ get_coc()

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

Definition at line 528 of file jpeg2000dec.c.

Referenced by jpeg2000_read_main_headers().

◆ get_rgn()

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

Definition at line 563 of file jpeg2000dec.c.

Referenced by jpeg2000_read_main_headers().

◆ get_qcx()

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

Definition at line 596 of file jpeg2000dec.c.

Referenced by get_qcc(), and get_qcd().

◆ get_qcd()

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

Definition at line 641 of file jpeg2000dec.c.

Referenced by jpeg2000_read_main_headers().

◆ get_qcc()

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

Definition at line 659 of file jpeg2000dec.c.

Referenced by jpeg2000_read_main_headers().

◆ get_poc()

static int get_poc ( Jpeg2000DecoderContext *  s,
int  size,
Jpeg2000POC *  p 
)
static

Definition at line 680 of file jpeg2000dec.c.

Referenced by jpeg2000_read_main_headers().

◆ get_sot()

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

Definition at line 742 of file jpeg2000dec.c.

Referenced by jpeg2000_read_main_headers().

◆ read_crg()

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

Definition at line 795 of file jpeg2000dec.c.

Referenced by jpeg2000_read_main_headers().

◆ get_tlm()

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

Definition at line 812 of file jpeg2000dec.c.

Referenced by jpeg2000_read_main_headers().

◆ get_plt()

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

Definition at line 847 of file jpeg2000dec.c.

Referenced by jpeg2000_read_main_headers().

◆ get_ppm()

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

Definition at line 869 of file jpeg2000dec.c.

Referenced by jpeg2000_read_main_headers().

◆ get_ppt()

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

Definition at line 893 of file jpeg2000dec.c.

Referenced by jpeg2000_read_main_headers().

◆ init_tile()

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

Definition at line 927 of file jpeg2000dec.c.

Referenced by jpeg2000_read_bitstream_packets().

◆ getnpasses()

static int getnpasses ( Jpeg2000DecoderContext *  s)
static

Definition at line 976 of file jpeg2000dec.c.

Referenced by jpeg2000_decode_packet().

◆ getlblockinc()

static int getlblockinc ( Jpeg2000DecoderContext *  s)
static

Definition at line 991 of file jpeg2000dec.c.

Referenced by jpeg2000_decode_packet().

◆ select_header()

static void select_header ( Jpeg2000DecoderContext *  s,
const Jpeg2000Tile *  tile,
int *  tp_index 
)
inlinestatic

Definition at line 1002 of file jpeg2000dec.c.

Referenced by jpeg2000_decode_packet().

◆ select_stream()

static void select_stream ( Jpeg2000DecoderContext *  s,
const Jpeg2000Tile *  tile,
int *  tp_index,
const Jpeg2000CodingStyle *  codsty 
)
inlinestatic

Definition at line 1013 of file jpeg2000dec.c.

Referenced by jpeg2000_decode_packet().

◆ jpeg2000_decode_packet()

static int jpeg2000_decode_packet ( Jpeg2000DecoderContext *  s,
Jpeg2000Tile *  tile,
int *  tp_index,
const Jpeg2000CodingStyle *  codsty,
Jpeg2000ResLevel *  rlevel,
int  precno,
int  layno,
const uint8_t *  expn,
int  numgbits 
)
static

Definition at line 1030 of file jpeg2000dec.c.

Referenced by jpeg2000_decode_packets_po_iteration().

◆ jpeg2000_decode_packets_po_iteration()

static int jpeg2000_decode_packets_po_iteration ( Jpeg2000DecoderContext *  s,
Jpeg2000Tile *  tile,
int  RSpoc,
int  CSpoc,
int  LYEpoc,
int  REpoc,
int  CEpoc,
int  Ppoc,
int *  tp_index 
)
static

Definition at line 1245 of file jpeg2000dec.c.

Referenced by jpeg2000_decode_packets().

◆ jpeg2000_decode_packets()

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

Definition at line 1536 of file jpeg2000dec.c.

Referenced by jpeg2000_read_bitstream_packets().

◆ decode_sigpass()

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

Definition at line 1573 of file jpeg2000dec.c.

Referenced by decode_cblk().

◆ decode_refpass()

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

Definition at line 1603 of file jpeg2000dec.c.

Referenced by decode_cblk().

◆ decode_clnpass()

static void decode_clnpass ( const 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 1627 of file jpeg2000dec.c.

Referenced by decode_cblk().

◆ decode_cblk()

static int decode_cblk ( const Jpeg2000DecoderContext *  s,
Jpeg2000CodingStyle *  codsty,
Jpeg2000T1Context *  t1,
Jpeg2000Cblk *  cblk,
int  width,
int  height,
int  bandpos,
uint8_t  roi_shift 
)
static

Definition at line 1693 of file jpeg2000dec.c.

Referenced by tile_codeblocks().

◆ roi_shift_param()

static int roi_shift_param ( Jpeg2000Component *  comp,
int  quan_parameter 
)
inlinestatic

Definition at line 1775 of file jpeg2000dec.c.

Referenced by roi_scale_cblk().

◆ dequantization_float()

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

Definition at line 1795 of file jpeg2000dec.c.

Referenced by tile_codeblocks().

◆ dequantization_int()

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

Definition at line 1810 of file jpeg2000dec.c.

Referenced by tile_codeblocks().

◆ dequantization_int_97()

static void dequantization_int_97 ( int  x,
int  y,
Jpeg2000Cblk *  cblk,
Jpeg2000Component *  comp,
Jpeg2000T1Context *  t1,
Jpeg2000Band *  band 
)
static

Definition at line 1830 of file jpeg2000dec.c.

Referenced by tile_codeblocks().

◆ mct_decode()

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

Definition at line 1844 of file jpeg2000dec.c.

Referenced by jpeg2000_decode_tile().

◆ roi_scale_cblk()

static void roi_scale_cblk ( Jpeg2000Cblk *  cblk,
Jpeg2000Component *  comp,
Jpeg2000T1Context *  t1 
)
inlinestatic

Definition at line 1872 of file jpeg2000dec.c.

Referenced by tile_codeblocks().

◆ tile_codeblocks()

static int tile_codeblocks ( const Jpeg2000DecoderContext *  s,
Jpeg2000Tile *  tile 
)
inlinestatic

Definition at line 1885 of file jpeg2000dec.c.

Referenced by jpeg2000_decode_tile().

◆ jpeg2000_decode_tile()

static int jpeg2000_decode_tile ( AVCodecContext *  avctx,
void *  td,
int  jobnr,
int  threadnr 
)
static

Definition at line 2043 of file jpeg2000dec.c.

Referenced by jpeg2000_decode_frame().

◆ jpeg2000_dec_cleanup()

static void jpeg2000_dec_cleanup ( Jpeg2000DecoderContext *  s)
static

Definition at line 2072 of file jpeg2000dec.c.

Referenced by jpeg2000_decode_frame().

◆ jpeg2000_read_main_headers()

static int jpeg2000_read_main_headers ( Jpeg2000DecoderContext *  s)
static

Definition at line 2100 of file jpeg2000dec.c.

Referenced by jpeg2000_decode_frame().

◆ jpeg2000_read_bitstream_packets()

static int jpeg2000_read_bitstream_packets ( Jpeg2000DecoderContext *  s)
static

Definition at line 2266 of file jpeg2000dec.c.

Referenced by jpeg2000_decode_frame().

◆ jp2_find_codestream()

static int jp2_find_codestream ( Jpeg2000DecoderContext *  s)
static

Definition at line 2284 of file jpeg2000dec.c.

Referenced by jpeg2000_decode_frame().

◆ jpeg2000_decode_init()

static av_cold int jpeg2000_decode_init ( AVCodecContext *  avctx)
static

Definition at line 2433 of file jpeg2000dec.c.

◆ jpeg2000_decode_frame()

static int jpeg2000_decode_frame ( AVCodecContext *  avctx,
AVFrame *  picture,
int *  got_frame,
AVPacket *  avpkt 
)
static

Definition at line 2451 of file jpeg2000dec.c.

Variable Documentation

◆ rgb_pix_fmts

enum AVPixelFormat rgb_pix_fmts[] = {RGB_PIXEL_FORMATS}
static

Definition at line 175 of file jpeg2000dec.c.

Referenced by geq_query_formats(), and get_siz().

◆ gray_pix_fmts

enum AVPixelFormat gray_pix_fmts[] = {GRAY_PIXEL_FORMATS}
static

Definition at line 176 of file jpeg2000dec.c.

Referenced by get_siz(), and query_formats().

◆ yuv_pix_fmts

enum AVPixelFormat yuv_pix_fmts[] = {YUV_PIXEL_FORMATS}
static

Definition at line 177 of file jpeg2000dec.c.

Referenced by geq_query_formats(), and get_siz().

◆ xyz_pix_fmts

enum AVPixelFormat xyz_pix_fmts[]
static
Initial value:
= {XYZ_PIXEL_FORMATS,
YUV_PIXEL_FORMATS}

Definition at line 178 of file jpeg2000dec.c.

Referenced by get_siz().

◆ all_pix_fmts

enum AVPixelFormat all_pix_fmts[]
static
Initial value:
= {RGB_PIXEL_FORMATS,
GRAY_PIXEL_FORMATS,
YUV_PIXEL_FORMATS,
XYZ_PIXEL_FORMATS}

Definition at line 180 of file jpeg2000dec.c.

Referenced by get_siz(), and query_formats().

◆ options

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 },
}

Definition at line 2541 of file jpeg2000dec.c.

◆ jpeg2000_class

const AVClass jpeg2000_class
static
Initial value:
= {
.class_name = "jpeg2000",
.item_name = av_default_item_name,
.option = options,
.version = LIBAVUTIL_VERSION_INT,
}

Definition at line 2547 of file jpeg2000dec.c.

◆ ff_jpeg2000_decoder

const FFCodec ff_jpeg2000_decoder
Initial value:
= {
.p.name = "jpeg2000",
CODEC_LONG_NAME("JPEG 2000"),
.p.type = AVMEDIA_TYPE_VIDEO,
.p.id = AV_CODEC_ID_JPEG2000,
.p.capabilities = AV_CODEC_CAP_SLICE_THREADS | AV_CODEC_CAP_FRAME_THREADS | AV_CODEC_CAP_DR1,
.priv_data_size = sizeof(Jpeg2000DecoderContext),
.init = jpeg2000_decode_init,
FF_CODEC_DECODE_CB(jpeg2000_decode_frame),
.p.priv_class = &jpeg2000_class,
.p.max_lowres = 5,
.p.profiles = NULL_IF_CONFIG_SMALL(ff_jpeg2000_profiles),
.caps_internal = FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM,
}

Definition at line 2554 of file jpeg2000dec.c.

AV_PIX_FMT_YUVA422P16
#define AV_PIX_FMT_YUVA422P16
Definition: pixfmt.h:522
options
static const AVOption options[]
Definition: jpeg2000dec.c:2541
JPEG2000_MAX_RESLEVELS
#define JPEG2000_MAX_RESLEVELS
Definition: jpeg2000.h:71
AV_PIX_FMT_YUVA422P9
#define AV_PIX_FMT_YUVA422P9
Definition: pixfmt.h:514
YUV_PIXEL_FORMATS
#define YUV_PIXEL_FORMATS
Definition: jpeg2000dec.c:162
ff_jpeg2000_profiles
const AVProfile ff_jpeg2000_profiles[]
Definition: profiles.c:104
AV_PIX_FMT_YUVA422P10
#define AV_PIX_FMT_YUVA422P10
Definition: pixfmt.h:517
AV_PIX_FMT_YUVA444P16
#define AV_PIX_FMT_YUVA444P16
Definition: pixfmt.h:523
AV_PIX_FMT_YUV422P9
#define AV_PIX_FMT_YUV422P9
Definition: pixfmt.h:476
jpeg2000_class
static const AVClass jpeg2000_class
Definition: jpeg2000dec.c:2547
AV_PIX_FMT_YUV444P10
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:481
AV_PIX_FMT_YUV422P16
#define AV_PIX_FMT_YUV422P16
Definition: pixfmt.h:490
FF_CODEC_DECODE_CB
#define FF_CODEC_DECODE_CB(func)
Definition: codec_internal.h:287
AV_PIX_FMT_YUVA420P
@ 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_YUV444P16
#define AV_PIX_FMT_YUV444P16
Definition: pixfmt.h:491
CODEC_LONG_NAME
#define CODEC_LONG_NAME(str)
Definition: codec_internal.h:272
AV_CODEC_CAP_FRAME_THREADS
#define AV_CODEC_CAP_FRAME_THREADS
Codec supports frame-level multithreading.
Definition: codec.h:110
LIBAVUTIL_VERSION_INT
#define LIBAVUTIL_VERSION_INT
Definition: version.h:85
jpeg2000_decode_init
static av_cold int jpeg2000_decode_init(AVCodecContext *avctx)
Definition: jpeg2000dec.c:2433
NULL
#define NULL
Definition: coverity.c:32
av_default_item_name
const char * av_default_item_name(void *ptr)
Return the context name.
Definition: log.c:237
AV_PIX_FMT_YUV422P10
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:479
init
int(* init)(AVBSFContext *ctx)
Definition: dts2pts.c:365
AV_CODEC_CAP_DR1
#define AV_CODEC_CAP_DR1
Codec uses get_buffer() or get_encode_buffer() for allocating buffers and supports custom allocators.
Definition: codec.h:52
OFFSET
#define OFFSET(x)
Definition: jpeg2000dec.c:2538
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:106
AV_PIX_FMT_YUV422P12
#define AV_PIX_FMT_YUV422P12
Definition: pixfmt.h:483
FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM
#define FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM
The decoder extracts and fills its parameters even if the frame is skipped due to the skip_frame sett...
Definition: codec_internal.h:54
AV_PIX_FMT_YUV444P12
#define AV_PIX_FMT_YUV444P12
Definition: pixfmt.h:485
jpeg2000_decode_frame
static int jpeg2000_decode_frame(AVCodecContext *avctx, AVFrame *picture, int *got_frame, AVPacket *avpkt)
Definition: jpeg2000dec.c:2451
AV_PIX_FMT_YUVA444P
@ AV_PIX_FMT_YUVA444P
planar YUV 4:4:4 32bpp, (1 Cr & Cb sample per 1x1 Y & A samples)
Definition: pixfmt.h:174
AV_CODEC_CAP_SLICE_THREADS
#define AV_CODEC_CAP_SLICE_THREADS
Codec supports slice-based (or partition-based) multithreading.
Definition: codec.h:114
AV_PIX_FMT_YUVA444P10
#define AV_PIX_FMT_YUVA444P10
Definition: pixfmt.h:518
VD
#define VD
Definition: jpeg2000dec.c:2539
AV_CODEC_ID_JPEG2000
@ AV_CODEC_ID_JPEG2000
Definition: codec_id.h:140
GRAY_PIXEL_FORMATS
#define GRAY_PIXEL_FORMATS
Definition: jpeg2000dec.c:161
AV_PIX_FMT_YUV444P9
#define AV_PIX_FMT_YUV444P9
Definition: pixfmt.h:477
AV_PIX_FMT_YUVA444P9
#define AV_PIX_FMT_YUVA444P9
Definition: pixfmt.h:515
AV_PIX_FMT_YUV422P14
#define AV_PIX_FMT_YUV422P14
Definition: pixfmt.h:487
RGB_PIXEL_FORMATS
#define RGB_PIXEL_FORMATS
Definition: jpeg2000dec.c:160
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Definition: opt.h:235
AV_PIX_FMT_YUV444P
@ AV_PIX_FMT_YUV444P
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:78
XYZ_PIXEL_FORMATS
#define XYZ_PIXEL_FORMATS
Definition: jpeg2000dec.c:173
AVMEDIA_TYPE_VIDEO
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
AV_PIX_FMT_YUV422P
@ AV_PIX_FMT_YUV422P
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:77
AV_PIX_FMT_YUV411P
@ AV_PIX_FMT_YUV411P
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
Definition: pixfmt.h:80
AV_PIX_FMT_YUV410P
@ AV_PIX_FMT_YUV410P
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
Definition: pixfmt.h:79
AV_PIX_FMT_YUV444P14
#define AV_PIX_FMT_YUV444P14
Definition: pixfmt.h:488
Jpeg2000DecoderContext
Definition: jpeg2000dec.h:73
AV_PIX_FMT_YUVA422P
@ AV_PIX_FMT_YUVA422P
planar YUV 4:2:2 24bpp, (1 Cr & Cb sample per 2x1 Y & A samples)
Definition: pixfmt.h:173
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