JPEG 2000 encoder using libopenjpeg. More...

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

Data Structures
struct	LibOpenJPEGContext

struct	PacketWriter

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

#define	VE AV_OPT_FLAG_VIDEO_PARAM \| AV_OPT_FLAG_ENCODING_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_write (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 void	cinema_parameters (opj_cparameters_t *p)

static opj_image_t *	mj2_create_image (AVCodecContext avctx, opj_cparameters_t parameters)

static av_cold int	libopenjpeg_encode_init (AVCodecContext *avctx)

static int	libopenjpeg_copy_packed8 (AVCodecContext avctx, const AVFrame frame, opj_image_t *image)

static int	libopenjpeg_copy_packed12 (AVCodecContext avctx, const AVFrame frame, opj_image_t *image)

static int	libopenjpeg_copy_packed16 (AVCodecContext avctx, const AVFrame frame, opj_image_t *image)

static int	libopenjpeg_copy_unpacked8 (AVCodecContext avctx, const AVFrame frame, opj_image_t *image)

static int	libopenjpeg_copy_unpacked16 (AVCodecContext avctx, const AVFrame frame, opj_image_t *image)

static int	libopenjpeg_encode_frame (AVCodecContext avctx, AVPacket pkt, const AVFrame frame, int got_packet)

Variables
static const AVOption	options []

static const AVClass	openjpeg_class

AVCodec	ff_libopenjpeg_encoder

Detailed Description

JPEG 2000 encoder using libopenjpeg.

Definition in file libopenjpegenc.c.

Macro Definition Documentation

◆ OFFSET

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

Definition at line 717 of file libopenjpegenc.c.

◆ VE

#define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM

Definition at line 718 of file libopenjpegenc.c.

Function Documentation

◆ error_callback()

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

static

Definition at line 49 of file libopenjpegenc.c.

Referenced by libopenjpeg_encode_frame().

◆ warning_callback()

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

static

Definition at line 54 of file libopenjpegenc.c.

Referenced by libopenjpeg_encode_frame().

◆ info_callback()

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

static

Definition at line 59 of file libopenjpegenc.c.

Referenced by libopenjpeg_encode_frame().

◆ stream_write()

static OPJ_SIZE_T stream_write	(	void *	out_buffer,
		OPJ_SIZE_T	nb_bytes,
		void *	user_data
	)

static

Definition at line 69 of file libopenjpegenc.c.

Referenced by libopenjpeg_encode_frame().

◆ stream_skip()

static OPJ_OFF_T stream_skip	(	OPJ_OFF_T	nb_bytes,
		void *	user_data
	)

static

Definition at line 89 of file libopenjpegenc.c.

Referenced by libopenjpeg_encode_frame().

◆ stream_seek()

static OPJ_BOOL stream_seek	(	OPJ_OFF_T	nb_bytes,
		void *	user_data
	)

static

Definition at line 117 of file libopenjpegenc.c.

Referenced by libopenjpeg_encode_frame().

◆ cinema_parameters()

static void cinema_parameters ( opj_cparameters_t * p )

static

Definition at line 134 of file libopenjpegenc.c.

Referenced by libopenjpeg_encode_init().

◆ mj2_create_image()

static opj_image_t* mj2_create_image	(	AVCodecContext *	avctx,
		opj_cparameters_t *	parameters
	)

static

Definition at line 171 of file libopenjpegenc.c.

Referenced by libopenjpeg_encode_frame().

◆ libopenjpeg_encode_init()

static av_cold int libopenjpeg_encode_init ( AVCodecContext * avctx )

static

Definition at line 276 of file libopenjpegenc.c.

◆ libopenjpeg_copy_packed8()

static int libopenjpeg_copy_packed8	(	AVCodecContext *	avctx,
		const AVFrame *	frame,
		opj_image_t *	image
	)

static

Definition at line 345 of file libopenjpegenc.c.

Referenced by libopenjpeg_encode_frame().

◆ libopenjpeg_copy_packed12()

static int libopenjpeg_copy_packed12	(	AVCodecContext *	avctx,
		const AVFrame *	frame,
		opj_image_t *	image
	)

static

Definition at line 385 of file libopenjpegenc.c.

Referenced by libopenjpeg_encode_frame().

◆ libopenjpeg_copy_packed16()

static int libopenjpeg_copy_packed16	(	AVCodecContext *	avctx,
		const AVFrame *	frame,
		opj_image_t *	image
	)

static

Definition at line 424 of file libopenjpegenc.c.

Referenced by libopenjpeg_encode_frame().

◆ libopenjpeg_copy_unpacked8()

static int libopenjpeg_copy_unpacked8	(	AVCodecContext *	avctx,
		const AVFrame *	frame,
		opj_image_t *	image
	)

static

Definition at line 464 of file libopenjpegenc.c.

Referenced by libopenjpeg_encode_frame().

◆ libopenjpeg_copy_unpacked16()

static int libopenjpeg_copy_unpacked16	(	AVCodecContext *	avctx,
		const AVFrame *	frame,
		opj_image_t *	image
	)

static

Definition at line 505 of file libopenjpegenc.c.

Referenced by libopenjpeg_encode_frame().

◆ libopenjpeg_encode_frame()

static int libopenjpeg_encode_frame	(	AVCodecContext *	avctx,
		AVPacket *	pkt,
		const AVFrame *	frame,
		int *	got_packet
	)

static

Definition at line 548 of file libopenjpegenc.c.

Variable Documentation

◆ options

const AVOption options[]

static

Initial value:

= {
    { "format",        "Codec Format",      OFFSET(format),        AV_OPT_TYPE_INT,   { .i64 = OPJ_CODEC_JP2   }, OPJ_CODEC_J2K, OPJ_CODEC_JP2,   VE, "format"      },
    { "j2k",           NULL,                0,                     AV_OPT_TYPE_CONST, { .i64 = OPJ_CODEC_J2K   }, 0,         0,           VE, "format"      },
    { "jp2",           NULL,                0,                     AV_OPT_TYPE_CONST, { .i64 = OPJ_CODEC_JP2   }, 0,         0,           VE, "format"      },
    { "profile",       NULL,                OFFSET(profile),       AV_OPT_TYPE_INT,   { .i64 = OPJ_STD_RSIZ    }, OPJ_STD_RSIZ,  OPJ_CINEMA4K,    VE, "profile"     },
    { "jpeg2000",      NULL,                0,                     AV_OPT_TYPE_CONST, { .i64 = OPJ_STD_RSIZ    }, 0,         0,           VE, "profile"     },
    { "cinema2k",      NULL,                0,                     AV_OPT_TYPE_CONST, { .i64 = OPJ_CINEMA2K    }, 0,         0,           VE, "profile"     },
    { "cinema4k",      NULL,                0,                     AV_OPT_TYPE_CONST, { .i64 = OPJ_CINEMA4K    }, 0,         0,           VE, "profile"     },
    { "cinema_mode",   "Digital Cinema",    OFFSET(cinema_mode),   AV_OPT_TYPE_INT,   { .i64 = OPJ_OFF         }, OPJ_OFF,       OPJ_CINEMA4K_24, VE, "cinema_mode" },
    { "off",           NULL,                0,                     AV_OPT_TYPE_CONST, { .i64 = OPJ_OFF         }, 0,         0,           VE, "cinema_mode" },
    { "2k_24",         NULL,                0,                     AV_OPT_TYPE_CONST, { .i64 = OPJ_CINEMA2K_24 }, 0,         0,           VE, "cinema_mode" },
    { "2k_48",         NULL,                0,                     AV_OPT_TYPE_CONST, { .i64 = OPJ_CINEMA2K_48 }, 0,         0,           VE, "cinema_mode" },
    { "4k_24",         NULL,                0,                     AV_OPT_TYPE_CONST, { .i64 = OPJ_CINEMA4K_24 }, 0,         0,           VE, "cinema_mode" },
    { "prog_order",    "Progression Order", OFFSET(prog_order),    AV_OPT_TYPE_INT,   { .i64 = OPJ_LRCP    }, OPJ_LRCP,  OPJ_CPRL,    VE, "prog_order"  },
    { "lrcp",          NULL,                0,                     AV_OPT_TYPE_CONST, { .i64 = OPJ_LRCP    }, 0,         0,           VE, "prog_order"  },
    { "rlcp",          NULL,                0,                     AV_OPT_TYPE_CONST, { .i64 = OPJ_RLCP    }, 0,         0,           VE, "prog_order"  },
    { "rpcl",          NULL,                0,                     AV_OPT_TYPE_CONST, { .i64 = OPJ_RPCL    }, 0,         0,           VE, "prog_order"  },
    { "pcrl",          NULL,                0,                     AV_OPT_TYPE_CONST, { .i64 = OPJ_PCRL    }, 0,         0,           VE, "prog_order"  },
    { "cprl",          NULL,                0,                     AV_OPT_TYPE_CONST, { .i64 = OPJ_CPRL    }, 0,         0,           VE, "prog_order"  },
    { "numresolution", NULL,                OFFSET(numresolution), AV_OPT_TYPE_INT,   { .i64 = 6            }, 0,         33,          VE                },
    { "irreversible",  NULL,                OFFSET(irreversible),  AV_OPT_TYPE_INT,   { .i64 = 0            }, 0,         1,           VE                },
    { "disto_alloc",   NULL,                OFFSET(disto_alloc),   AV_OPT_TYPE_INT,   { .i64 = 1            }, 0,         1,           VE                },
    { "fixed_quality", NULL,                OFFSET(fixed_quality), AV_OPT_TYPE_INT,   { .i64 = 0            }, 0,         1,           VE                },
    { NULL },
}

Definition at line 719 of file libopenjpegenc.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 745 of file libopenjpegenc.c.

◆ ff_libopenjpeg_encoder

AVCodec ff_libopenjpeg_encoder

Definition at line 752 of file libopenjpegenc.c.

Data Structures

Macros

Functions

Variables

Detailed Description

Macro Definition Documentation

◆ OFFSET

◆ VE

Function Documentation

◆ error_callback()

◆ warning_callback()

◆ info_callback()

◆ stream_write()

◆ stream_skip()

◆ stream_seek()

◆ cinema_parameters()

◆ mj2_create_image()

◆ libopenjpeg_encode_init()

◆ libopenjpeg_copy_packed8()

◆ libopenjpeg_copy_packed12()

◆ libopenjpeg_copy_packed16()

◆ libopenjpeg_copy_unpacked8()

◆ libopenjpeg_copy_unpacked16()

◆ libopenjpeg_encode_frame()

Variable Documentation

◆ options

◆ openjpeg_class

◆ ff_libopenjpeg_encoder