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Data Structures | Macros | Functions | Variables
libopenjpegdec.c File Reference

JPEG 2000 decoder using libopenjpeg. More...

#include "libavutil/common.h"
#include "libavutil/imgutils.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/opt.h"
#include "libavutil/pixfmt.h"
#include "avcodec.h"
#include "internal.h"
#include "thread.h"
#include <openjpeg.h>

Go to the source code of this file.

Data Structures

struct  LibOpenJPEGContext
 

Macros

#define OPJ_STATIC
 
#define JP2_SIG_TYPE   0x6A502020
 
#define JP2_SIG_VALUE   0x0D0A870A
 
#define RGB_PIXEL_FORMATS
 
#define GRAY_PIXEL_FORMATS
 
#define YUV_PIXEL_FORMATS
 
#define XYZ_PIXEL_FORMATS   AV_PIX_FMT_XYZ12
 
#define OFFSET(x)   offsetof(LibOpenJPEGContext, x)
 
#define VD   AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM
 

Functions

static int libopenjpeg_matches_pix_fmt (const opj_image_t *image, enum AVPixelFormat pix_fmt)
 
static enum AVPixelFormat libopenjpeg_guess_pix_fmt (const opj_image_t *image)
 
static int libopenjpeg_ispacked (enum AVPixelFormat pix_fmt)
 
static void libopenjpeg_copy_to_packed8 (AVFrame *picture, opj_image_t *image)
 
static void libopenjpeg_copy_to_packed16 (AVFrame *picture, opj_image_t *image)
 
static void libopenjpeg_copyto8 (AVFrame *picture, opj_image_t *image)
 
static void libopenjpeg_copyto16 (AVFrame *picture, opj_image_t *image)
 
static av_cold int libopenjpeg_decode_init (AVCodecContext *avctx)
 
static int libopenjpeg_decode_frame (AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
 

Variables

static enum AVPixelFormat libopenjpeg_rgb_pix_fmts []
 
static enum AVPixelFormat libopenjpeg_gray_pix_fmts []
 
static enum AVPixelFormat libopenjpeg_yuv_pix_fmts []
 
static enum AVPixelFormat libopenjpeg_all_pix_fmts []
 
static const AVOption options []
 
static const AVClass openjpeg_class
 
AVCodec ff_libopenjpeg_decoder
 

Detailed Description

JPEG 2000 decoder using libopenjpeg.

Definition in file libopenjpegdec.c.

Macro Definition Documentation

#define OPJ_STATIC

Definition at line 27 of file libopenjpegdec.c.

#define JP2_SIG_TYPE   0x6A502020

Definition at line 45 of file libopenjpegdec.c.

Referenced by libopenjpeg_decode_frame().

#define JP2_SIG_VALUE   0x0D0A870A

Definition at line 46 of file libopenjpegdec.c.

Referenced by libopenjpeg_decode_frame().

#define RGB_PIXEL_FORMATS
Value:

Definition at line 50 of file libopenjpegdec.c.

#define GRAY_PIXEL_FORMATS
Value:
AV_PIX_FMT_GRAY16

Definition at line 53 of file libopenjpegdec.c.

#define YUV_PIXEL_FORMATS
Value:

Definition at line 56 of file libopenjpegdec.c.

#define XYZ_PIXEL_FORMATS   AV_PIX_FMT_XYZ12

Definition at line 68 of file libopenjpegdec.c.

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

Definition at line 405 of file libopenjpegdec.c.

Definition at line 406 of file libopenjpegdec.c.

Function Documentation

static int libopenjpeg_matches_pix_fmt ( const opj_image_t *  image,
enum AVPixelFormat  pix_fmt 
)
inlinestatic

Definition at line 89 of file libopenjpegdec.c.

Referenced by libopenjpeg_decode_frame(), and libopenjpeg_guess_pix_fmt().

static enum AVPixelFormat libopenjpeg_guess_pix_fmt ( const opj_image_t *  image)
inlinestatic

Definition at line 126 of file libopenjpegdec.c.

Referenced by libopenjpeg_decode_frame().

static int libopenjpeg_ispacked ( enum AVPixelFormat  pix_fmt)
inlinestatic

Definition at line 158 of file libopenjpegdec.c.

Referenced by libopenjpeg_decode_frame().

static void libopenjpeg_copy_to_packed8 ( AVFrame picture,
opj_image_t *  image 
)
inlinestatic

Definition at line 173 of file libopenjpegdec.c.

Referenced by libopenjpeg_decode_frame().

static void libopenjpeg_copy_to_packed16 ( AVFrame picture,
opj_image_t *  image 
)
inlinestatic

Definition at line 185 of file libopenjpegdec.c.

Referenced by libopenjpeg_decode_frame().

static void libopenjpeg_copyto8 ( AVFrame picture,
opj_image_t *  image 
)
inlinestatic

Definition at line 202 of file libopenjpegdec.c.

Referenced by libopenjpeg_decode_frame().

static void libopenjpeg_copyto16 ( AVFrame picture,
opj_image_t *  image 
)
inlinestatic

Definition at line 220 of file libopenjpegdec.c.

Referenced by libopenjpeg_decode_frame().

static av_cold int libopenjpeg_decode_init ( AVCodecContext avctx)
static

Definition at line 242 of file libopenjpegdec.c.

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

Definition at line 250 of file libopenjpegdec.c.

Variable Documentation

enum AVPixelFormat libopenjpeg_rgb_pix_fmts[]
static
Initial value:

Definition at line 70 of file libopenjpegdec.c.

Referenced by libopenjpeg_guess_pix_fmt().

enum AVPixelFormat libopenjpeg_gray_pix_fmts[]
static
Initial value:

Definition at line 73 of file libopenjpegdec.c.

Referenced by libopenjpeg_guess_pix_fmt().

enum AVPixelFormat libopenjpeg_yuv_pix_fmts[]
static
Initial value:

Definition at line 76 of file libopenjpegdec.c.

Referenced by libopenjpeg_guess_pix_fmt().

enum AVPixelFormat libopenjpeg_all_pix_fmts[]
static
const AVOption options[]
static
Initial value:
= {
{ "lowqual", "Limit the number of layers used for decoding",
OFFSET(lowqual), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, VD },
{ NULL },
}

Definition at line 408 of file libopenjpegdec.c.

const AVClass openjpeg_class
static
Initial value:
= {
.class_name = "libopenjpeg",
.item_name = av_default_item_name,
.option = options,
}

Definition at line 414 of file libopenjpegdec.c.

AVCodec ff_libopenjpeg_decoder
Initial value:
= {
.name = "libopenjpeg",
.long_name = NULL_IF_CONFIG_SMALL("OpenJPEG JPEG 2000"),
.priv_data_size = sizeof(LibOpenJPEGContext),
.max_lowres = 31,
.priv_class = &openjpeg_class,
}

Definition at line 421 of file libopenjpegdec.c.