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

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, AVFrame picture, 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

const FFCodec	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 40 of file libopenjpegdec.c.

◆ JP2_SIG_VALUE

#define JP2_SIG_VALUE 0x0D0A870A

Definition at line 41 of file libopenjpegdec.c.

◆ RGB_PIXEL_FORMATS

#define RGB_PIXEL_FORMATS

Value:

AV_PIX_FMT_RGB24, AV_PIX_FMT_RGBA, \

AV_PIX_FMT_RGB48, AV_PIX_FMT_RGBA64

Definition at line 45 of file libopenjpegdec.c.

◆ GRAY_PIXEL_FORMATS

#define GRAY_PIXEL_FORMATS

Value:

                           AV_PIX_FMT_GRAY8, AV_PIX_FMT_YA8,                  \
                           AV_PIX_FMT_GRAY10, AV_PIX_FMT_GRAY12, AV_PIX_FMT_GRAY14, \
                           AV_PIX_FMT_GRAY16, AV_PIX_FMT_YA16

Definition at line 48 of file libopenjpegdec.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 52 of file libopenjpegdec.c.

◆ XYZ_PIXEL_FORMATS

#define XYZ_PIXEL_FORMATS AV_PIX_FMT_XYZ12

Definition at line 64 of file libopenjpegdec.c.

◆ OFFSET

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

Definition at line 487 of file libopenjpegdec.c.

◆ VD

#define VD AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM

Definition at line 488 of file libopenjpegdec.c.

Function Documentation

◆ error_callback()

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

static

Definition at line 85 of file libopenjpegdec.c.

Referenced by libopenjpeg_decode_frame().

◆ warning_callback()

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

static

Definition at line 90 of file libopenjpegdec.c.

Referenced by libopenjpeg_decode_frame().

◆ info_callback()

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

static

Definition at line 95 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 106 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 123 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 148 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 158 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 195 of file libopenjpegdec.c.

Referenced by libopenjpeg_decode_frame().

◆ libopenjpeg_ispacked()

static int libopenjpeg_ispacked ( enum AVPixelFormat pix_fmt )

inlinestatic

Definition at line 227 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 242 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 254 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 272 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 290 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 313 of file libopenjpegdec.c.

◆ libopenjpeg_decode_frame()

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

static

Definition at line 321 of file libopenjpegdec.c.

Variable Documentation

◆ libopenjpeg_rgb_pix_fmts

enum AVPixelFormat libopenjpeg_rgb_pix_fmts[]

static

Initial value:

= {
    RGB_PIXEL_FORMATS
}

Definition at line 66 of file libopenjpegdec.c.

Referenced by libopenjpeg_guess_pix_fmt().

◆ libopenjpeg_gray_pix_fmts

enum AVPixelFormat libopenjpeg_gray_pix_fmts[]

static

Initial value:

= {
    GRAY_PIXEL_FORMATS
}

Definition at line 69 of file libopenjpegdec.c.

Referenced by libopenjpeg_guess_pix_fmt().

◆ libopenjpeg_yuv_pix_fmts

enum AVPixelFormat libopenjpeg_yuv_pix_fmts[]

static

Initial value:

= {
    YUV_PIXEL_FORMATS
}

Definition at line 72 of file libopenjpegdec.c.

Referenced by libopenjpeg_guess_pix_fmt().

◆ libopenjpeg_all_pix_fmts

enum AVPixelFormat libopenjpeg_all_pix_fmts[]

static

Initial value:

= {
    RGB_PIXEL_FORMATS, GRAY_PIXEL_FORMATS, YUV_PIXEL_FORMATS, XYZ_PIXEL_FORMATS
}

Definition at line 75 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 },
}

Definition at line 490 of file libopenjpegdec.c.

◆ openjpeg_class

const AVClass openjpeg_class

static

Initial value:

= {
    .class_name = "libopenjpeg",
    .item_name  = av_default_item_name,
    .option     = options,
    .version    = LIBAVUTIL_VERSION_INT,
}

Definition at line 496 of file libopenjpegdec.c.

◆ ff_libopenjpeg_decoder

const FFCodec ff_libopenjpeg_decoder

Initial value:

= {
    .p.name         = "libopenjpeg",
    CODEC_LONG_NAME("OpenJPEG JPEG 2000"),
    .p.type         = AVMEDIA_TYPE_VIDEO,
    .p.id           = AV_CODEC_ID_JPEG2000,
    .p.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_FRAME_THREADS,
    .p.max_lowres   = 31,
    .p.priv_class   = &openjpeg_class,
    .p.wrapper_name = "libopenjpeg",
    .caps_internal  = FF_CODEC_CAP_NOT_INIT_THREADSAFE,
    .priv_data_size = sizeof(LibOpenJPEGContext),
    .init           = libopenjpeg_decode_init,
    FF_CODEC_DECODE_CB(libopenjpeg_decode_frame),
}

Definition at line 503 of file libopenjpegdec.c.

Data Structures

Macros

Functions

Variables

Detailed Description

Macro Definition Documentation

◆ JP2_SIG_TYPE

◆ JP2_SIG_VALUE

◆ RGB_PIXEL_FORMATS

◆ GRAY_PIXEL_FORMATS

◆ YUV_PIXEL_FORMATS

◆ XYZ_PIXEL_FORMATS

◆ OFFSET

◆ VD

Function Documentation

◆ error_callback()

◆ warning_callback()

◆ info_callback()

◆ stream_read()

◆ stream_skip()

◆ stream_seek()

◆ libopenjpeg_matches_pix_fmt()

◆ libopenjpeg_guess_pix_fmt()

◆ libopenjpeg_ispacked()

◆ libopenjpeg_copy_to_packed8()

◆ libopenjpeg_copy_to_packed16()

◆ libopenjpeg_copyto8()

◆ libopenjpeg_copyto16()

◆ libopenjpeg_decode_init()

◆ libopenjpeg_decode_frame()

Variable Documentation

◆ libopenjpeg_rgb_pix_fmts

◆ libopenjpeg_gray_pix_fmts

◆ libopenjpeg_yuv_pix_fmts

◆ libopenjpeg_all_pix_fmts

◆ options

◆ openjpeg_class

◆ ff_libopenjpeg_decoder