FFmpeg  4.0
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
 
struct  BufferReader
 

Macros

#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 void error_callback (const char *msg, void *data)
 
static void warning_callback (const char *msg, void *data)
 
static void info_callback (const char *msg, void *data)
 
static OPJ_SIZE_T stream_read (void *out_buffer, OPJ_SIZE_T nb_bytes, void *user_data)
 
static OPJ_OFF_T stream_skip (OPJ_OFF_T nb_bytes, void *user_data)
 
static OPJ_BOOL stream_seek (OPJ_OFF_T nb_bytes, void *user_data)
 
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

◆ JP2_SIG_TYPE

#define JP2_SIG_TYPE   0x6A502020

Definition at line 39 of file libopenjpegdec.c.

Referenced by libopenjpeg_decode_frame().

◆ JP2_SIG_VALUE

#define JP2_SIG_VALUE   0x0D0A870A

Definition at line 40 of file libopenjpegdec.c.

Referenced by libopenjpeg_decode_frame().

◆ RGB_PIXEL_FORMATS

#define RGB_PIXEL_FORMATS
Value:
AV_PIX_FMT_RGB48, AV_PIX_FMT_RGBA64
packed RGB 8:8:8, 24bpp, RGBRGB...
Definition: pixfmt.h:64
#define AV_PIX_FMT_RGBA64
Definition: pixfmt.h:358
packed RGBA 8:8:8:8, 32bpp, RGBARGBA...
Definition: pixfmt.h:89

Definition at line 44 of file libopenjpegdec.c.

◆ GRAY_PIXEL_FORMATS

#define GRAY_PIXEL_FORMATS
Value:
AV_PIX_FMT_GRAY16, AV_PIX_FMT_YA16
8 bits gray, 8 bits alpha
Definition: pixfmt.h:139
#define AV_PIX_FMT_YA16
Definition: pixfmt.h:353
Y , 8bpp.
Definition: pixfmt.h:70

Definition at line 47 of file libopenjpegdec.c.

◆ YUV_PIXEL_FORMATS

#define YUV_PIXEL_FORMATS
Value:
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, \
#define AV_PIX_FMT_YUVA422P16
Definition: pixfmt.h:407
#define AV_PIX_FMT_YUVA422P9
Definition: pixfmt.h:401
#define AV_PIX_FMT_YUV444P14
Definition: pixfmt.h:378
#define AV_PIX_FMT_YUVA422P10
Definition: pixfmt.h:404
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:67
planar YUV 4:2:0, 20bpp, (1 Cr & Cb sample per 2x2 Y & A samples)
Definition: pixfmt.h:97
#define AV_PIX_FMT_YUV444P16
Definition: pixfmt.h:381
#define AV_PIX_FMT_YUV422P12
Definition: pixfmt.h:373
planar YUV 4:2:2 24bpp, (1 Cr & Cb sample per 2x1 Y & A samples)
Definition: pixfmt.h:172
#define AV_PIX_FMT_YUVA444P16
Definition: pixfmt.h:408
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:371
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:66
#define AV_PIX_FMT_YUV422P9
Definition: pixfmt.h:366
#define AV_PIX_FMT_YUVA444P10
Definition: pixfmt.h:405
#define AV_PIX_FMT_YUV444P9
Definition: pixfmt.h:367
planar YUV 4:4:4 32bpp, (1 Cr & Cb sample per 1x1 Y & A samples)
Definition: pixfmt.h:173
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
Definition: pixfmt.h:68
#define AV_PIX_FMT_YUV422P14
Definition: pixfmt.h:377
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:369
#define AV_PIX_FMT_YUV444P12
Definition: pixfmt.h:375
#define AV_PIX_FMT_YUVA444P9
Definition: pixfmt.h:402
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
Definition: pixfmt.h:69
#define AV_PIX_FMT_YUV422P16
Definition: pixfmt.h:380

Definition at line 50 of file libopenjpegdec.c.

◆ XYZ_PIXEL_FORMATS

#define XYZ_PIXEL_FORMATS   AV_PIX_FMT_XYZ12

Definition at line 62 of file libopenjpegdec.c.

◆ OFFSET

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

Definition at line 488 of file libopenjpegdec.c.

◆ VD

Definition at line 489 of file libopenjpegdec.c.

Function Documentation

◆ error_callback()

static void error_callback ( const char *  msg,
void data 
)
static

Definition at line 83 of file libopenjpegdec.c.

Referenced by libopenjpeg_decode_frame().

◆ warning_callback()

static void warning_callback ( const char *  msg,
void data 
)
static

Definition at line 88 of file libopenjpegdec.c.

Referenced by libopenjpeg_decode_frame().

◆ info_callback()

static void info_callback ( const char *  msg,
void data 
)
static

Definition at line 93 of file libopenjpegdec.c.

Referenced by libopenjpeg_decode_frame().

◆ stream_read()

static OPJ_SIZE_T stream_read ( void out_buffer,
OPJ_SIZE_T  nb_bytes,
void user_data 
)
static

Definition at line 104 of file libopenjpegdec.c.

Referenced by libopenjpeg_decode_frame().

◆ stream_skip()

static OPJ_OFF_T stream_skip ( OPJ_OFF_T  nb_bytes,
void user_data 
)
static

Definition at line 121 of file libopenjpegdec.c.

Referenced by libopenjpeg_decode_frame().

◆ stream_seek()

static OPJ_BOOL stream_seek ( OPJ_OFF_T  nb_bytes,
void user_data 
)
static

Definition at line 146 of file libopenjpegdec.c.

Referenced by libopenjpeg_decode_frame().

◆ libopenjpeg_matches_pix_fmt()

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

Definition at line 156 of file libopenjpegdec.c.

Referenced by libopenjpeg_decode_frame(), and libopenjpeg_guess_pix_fmt().

◆ libopenjpeg_guess_pix_fmt()

static enum AVPixelFormat libopenjpeg_guess_pix_fmt ( const opj_image_t *  image)
inlinestatic

Definition at line 193 of file libopenjpegdec.c.

Referenced by libopenjpeg_decode_frame().

◆ libopenjpeg_ispacked()

static int libopenjpeg_ispacked ( enum AVPixelFormat  pix_fmt)
inlinestatic

Definition at line 225 of file libopenjpegdec.c.

Referenced by libopenjpeg_decode_frame().

◆ libopenjpeg_copy_to_packed8()

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

Definition at line 240 of file libopenjpegdec.c.

Referenced by libopenjpeg_decode_frame().

◆ libopenjpeg_copy_to_packed16()

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

Definition at line 252 of file libopenjpegdec.c.

Referenced by libopenjpeg_decode_frame().

◆ libopenjpeg_copyto8()

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

Definition at line 270 of file libopenjpegdec.c.

Referenced by libopenjpeg_decode_frame().

◆ libopenjpeg_copyto16()

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

Definition at line 288 of file libopenjpegdec.c.

Referenced by libopenjpeg_decode_frame().

◆ libopenjpeg_decode_init()

static av_cold int libopenjpeg_decode_init ( AVCodecContext avctx)
static

Definition at line 311 of file libopenjpegdec.c.

◆ libopenjpeg_decode_frame()

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

Definition at line 319 of file libopenjpegdec.c.

Variable Documentation

◆ libopenjpeg_rgb_pix_fmts

enum AVPixelFormat libopenjpeg_rgb_pix_fmts[]
static
Initial value:
= {
}
#define RGB_PIXEL_FORMATS

Definition at line 64 of file libopenjpegdec.c.

Referenced by libopenjpeg_guess_pix_fmt().

◆ libopenjpeg_gray_pix_fmts

enum AVPixelFormat libopenjpeg_gray_pix_fmts[]
static
Initial value:
= {
}
#define GRAY_PIXEL_FORMATS

Definition at line 67 of file libopenjpegdec.c.

Referenced by libopenjpeg_guess_pix_fmt().

◆ libopenjpeg_yuv_pix_fmts

enum AVPixelFormat libopenjpeg_yuv_pix_fmts[]
static
Initial value:
= {
}
#define YUV_PIXEL_FORMATS

Definition at line 70 of file libopenjpegdec.c.

Referenced by libopenjpeg_guess_pix_fmt().

◆ libopenjpeg_all_pix_fmts

enum AVPixelFormat libopenjpeg_all_pix_fmts[]
static
Initial value:
= {
}
#define XYZ_PIXEL_FORMATS
#define YUV_PIXEL_FORMATS
#define RGB_PIXEL_FORMATS
#define GRAY_PIXEL_FORMATS

Definition at line 73 of file libopenjpegdec.c.

Referenced by libopenjpeg_guess_pix_fmt().

◆ options

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 },
}
#define NULL
Definition: coverity.c:32
#define VD
#define OFFSET(x)

Definition at line 491 of file libopenjpegdec.c.

◆ openjpeg_class

const AVClass openjpeg_class
static
Initial value:
= {
.class_name = "libopenjpeg",
.item_name = av_default_item_name,
.option = options,
}
#define LIBAVUTIL_VERSION_INT
Definition: version.h:85
const char * av_default_item_name(void *ptr)
Return the context name.
Definition: log.c:191
static const AVOption options[]

Definition at line 497 of file libopenjpegdec.c.

◆ ff_libopenjpeg_decoder

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,
.wrapper_name = "libopenjpeg",
}
static int libopenjpeg_decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
static av_cold int init(AVCodecContext *avctx)
Definition: avrndec.c:35
static const AVClass openjpeg_class
static void decode(AVCodecContext *dec_ctx, AVPacket *pkt, AVFrame *frame, FILE *outfile)
Definition: decode_audio.c:42
static av_cold int libopenjpeg_decode_init(AVCodecContext *avctx)
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:186
#define AV_CODEC_CAP_FRAME_THREADS
Codec supports frame-level multithreading.
Definition: avcodec.h:1015
#define AV_CODEC_CAP_DR1
Codec uses get_buffer() for allocating buffers and supports custom allocators.
Definition: avcodec.h:959

Definition at line 504 of file libopenjpegdec.c.