JPEG 2000 decoder using libopenjpeg. More...

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

Data Structures
struct	LibOpenJPEGContext

Macros
#define	OPJ_STATIC

#define	JP2_SIG_TYPE 0x6A502020

#define	JP2_SIG_VALUE 0x0D0A870A

#define	RGB_PIXEL_FORMATS 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

#define	YUV_PIXEL_FORMATS

#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 av_cold int	libopenjpeg_decode_init_thread_copy (AVCodecContext *avctx)

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

static av_cold int	libopenjpeg_decode_close (AVCodecContext *avctx)

Variables
static enum AVPixelFormat	libopenjpeg_rgb_pix_fmts [] = {RGB_PIXEL_FORMATS}

static enum AVPixelFormat	libopenjpeg_gray_pix_fmts [] = {GRAY_PIXEL_FORMATS}

static enum AVPixelFormat	libopenjpeg_yuv_pix_fmts [] = {YUV_PIXEL_FORMATS}

static enum AVPixelFormat	libopenjpeg_all_pix_fmts [] = {RGB_PIXEL_FORMATS,GRAY_PIXEL_FORMATS,YUV_PIXEL_FORMATS}

static const AVOption	options []

class {
class_name = "libopenjpeg"

item_name = av_default_item_name

option = options

version = LIBAVUTIL_VERSION_INT

};

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 43 of file libopenjpegdec.c.

Referenced by libopenjpeg_decode_frame().

#define JP2_SIG_VALUE 0x0D0A870A

Definition at line 44 of file libopenjpegdec.c.

Referenced by libopenjpeg_decode_frame().

#define RGB_PIXEL_FORMATS AV_PIX_FMT_RGB24,AV_PIX_FMT_RGBA,AV_PIX_FMT_RGB48,AV_PIX_FMT_RGBA64

Definition at line 48 of file libopenjpegdec.c.

#define GRAY_PIXEL_FORMATS AV_PIX_FMT_GRAY8,AV_PIX_FMT_GRAY8A,AV_PIX_FMT_GRAY16

Definition at line 49 of file libopenjpegdec.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

Definition at line 50 of file libopenjpegdec.c.

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

Definition at line 407 of file libopenjpegdec.c.

#define VD AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM

Definition at line 408 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 74 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 103 of file libopenjpegdec.c.

Referenced by libopenjpeg_decode_frame().

static int libopenjpeg_ispacked ( enum AVPixelFormat pix_fmt )

inlinestatic

Definition at line 136 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 152 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 166 of file libopenjpegdec.c.

Referenced by libopenjpeg_decode_frame().

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

inlinestatic

Definition at line 184 of file libopenjpegdec.c.

Referenced by libopenjpeg_decode_frame().

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

inlinestatic

Definition at line 202 of file libopenjpegdec.c.

Referenced by libopenjpeg_decode_frame().

static av_cold int libopenjpeg_decode_init ( AVCodecContext * avctx )

static

Definition at line 219 of file libopenjpegdec.c.

static av_cold int libopenjpeg_decode_init_thread_copy ( AVCodecContext * avctx )

static

Definition at line 229 of file libopenjpegdec.c.

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

static

Definition at line 237 of file libopenjpegdec.c.

static av_cold int libopenjpeg_decode_close ( AVCodecContext * avctx )

static

Definition at line 398 of file libopenjpegdec.c.

Variable Documentation

enum AVPixelFormat libopenjpeg_rgb_pix_fmts[] = {RGB_PIXEL_FORMATS}

static

Definition at line 62 of file libopenjpegdec.c.

Referenced by libopenjpeg_guess_pix_fmt().

enum AVPixelFormat libopenjpeg_gray_pix_fmts[] = {GRAY_PIXEL_FORMATS}

static

Definition at line 63 of file libopenjpegdec.c.

Referenced by libopenjpeg_guess_pix_fmt().

enum AVPixelFormat libopenjpeg_yuv_pix_fmts[] = {YUV_PIXEL_FORMATS}

static

Definition at line 64 of file libopenjpegdec.c.

Referenced by libopenjpeg_guess_pix_fmt().

enum AVPixelFormat libopenjpeg_all_pix_fmts[] = {RGB_PIXEL_FORMATS,GRAY_PIXEL_FORMATS,YUV_PIXEL_FORMATS}

static

Definition at line 65 of file libopenjpegdec.c.

Referenced by libopenjpeg_guess_pix_fmt().

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 410 of file libopenjpegdec.c.

class_name = "libopenjpeg"

Definition at line 416 of file libopenjpegdec.c.

item_name = av_default_item_name

Definition at line 417 of file libopenjpegdec.c.

option = options

Definition at line 418 of file libopenjpegdec.c.

version = LIBAVUTIL_VERSION_INT

Definition at line 419 of file libopenjpegdec.c.

const { ... }

AVCodec ff_libopenjpeg_decoder

Initial value:

= {
    .name             = "libopenjpeg",
    .type             = AVMEDIA_TYPE_VIDEO,
    .id               = AV_CODEC_ID_JPEG2000,
    .priv_data_size   = sizeof(LibOpenJPEGContext),
    .init             = libopenjpeg_decode_init,
    .close            = libopenjpeg_decode_close,
    .decode           = libopenjpeg_decode_frame,
    .capabilities     = CODEC_CAP_DR1 | CODEC_CAP_FRAME_THREADS,
    .max_lowres       = 31,
    .long_name        = NULL_IF_CONFIG_SMALL("OpenJPEG JPEG 2000"),
    .priv_class       = &class,
    .init_thread_copy = ONLY_IF_THREADS_ENABLED(libopenjpeg_decode_init_thread_copy),
}

Definition at line 422 of file libopenjpegdec.c.

Data Structures

Macros

Functions

Variables

Detailed Description

Macro Definition Documentation

Function Documentation

Variable Documentation