libavcodec/libopenjpegdec.c File Reference

JPEG 2000 decoder using libopenjpeg. More...

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

Go to the source code of this file.

Data Structures
struct	LibOpenJPEGContext
Defines
#define	OPJ_STATIC
#define	JP2_SIG_TYPE   0x6A502020
#define	JP2_SIG_VALUE   0x0D0A870A
Functions
static enum PixelFormat	check_image_attributes (AVCodecContext *avctx, opj_image_t *image)
static int	is_yuva420 (opj_image_t *image)
static int	libopenjpeg_ispacked (enum PixelFormat 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 *data_size, AVPacket *avpkt)
static av_cold int	libopenjpeg_decode_close (AVCodecContext *avctx)
Variables
AVCodec	ff_libopenjpeg_decoder

---

Detailed Description

JPEG 2000 decoder using libopenjpeg.

Definition in file libopenjpegdec.c.

---

Define Documentation

#define JP2_SIG_TYPE   0x6A502020

Definition at line 35 of file libopenjpegdec.c.

#define JP2_SIG_VALUE   0x0D0A870A

Definition at line 36 of file libopenjpegdec.c.

#define OPJ_STATIC

Definition at line 32 of file libopenjpegdec.c.

---

Function Documentation

static enum PixelFormat check_image_attributes	(	AVCodecContext *	avctx,
		opj_image_t *	image
	)			[static]

Definition at line 43 of file libopenjpegdec.c.

Referenced by libopenjpeg_decode_frame().

static int is_yuva420

(

opj_image_t *

image

)

[static]

Definition at line 94 of file libopenjpegdec.c.

Referenced by libopenjpeg_decode_frame().

static void libopenjpeg_copy_to_packed16	(	AVFrame *	picture,
		opj_image_t *	image
	)			[inline, static]

Definition at line 127 of file libopenjpegdec.c.

Referenced by libopenjpeg_decode_frame().

static void libopenjpeg_copy_to_packed8	(	AVFrame *	picture,
		opj_image_t *	image
	)			[inline, static]

Definition at line 113 of file libopenjpegdec.c.

Referenced by libopenjpeg_decode_frame().

static void libopenjpeg_copyto16	(	AVFrame *	picture,
		opj_image_t *	image
	)			[inline, static]

Definition at line 163 of file libopenjpegdec.c.

Referenced by libopenjpeg_decode_frame().

static void libopenjpeg_copyto8	(	AVFrame *	picture,
		opj_image_t *	image
	)			[inline, static]

Definition at line 145 of file libopenjpegdec.c.

Referenced by libopenjpeg_decode_frame().

static av_cold int libopenjpeg_decode_close

(

AVCodecContext *

avctx

)

[static]

Definition at line 334 of file libopenjpegdec.c.

static int libopenjpeg_decode_frame	(	AVCodecContext *	avctx,
		void *	data,
		int *	data_size,
		AVPacket *	avpkt
	)			[static]

Definition at line 198 of file libopenjpegdec.c.

static av_cold int libopenjpeg_decode_init

(

AVCodecContext *

avctx

)

[static]

Definition at line 180 of file libopenjpegdec.c.

static av_cold int libopenjpeg_decode_init_thread_copy

(

AVCodecContext *

avctx

)

[static]

Definition at line 190 of file libopenjpegdec.c.

static int libopenjpeg_ispacked

(

enum PixelFormat

pix_fmt

)

[inline, static]

Definition at line 103 of file libopenjpegdec.c.

Referenced by libopenjpeg_decode_frame().

---

Variable Documentation

AVCodec ff_libopenjpeg_decoder

Initial value:

 {
    .name           = "libopenjpeg",
    .type           = AVMEDIA_TYPE_VIDEO,
    .id             = 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     = 5,
    .long_name      = NULL_IF_CONFIG_SMALL("OpenJPEG based JPEG 2000 decoder"),
    .init_thread_copy = ONLY_IF_THREADS_ENABLED(libopenjpeg_decode_init_thread_copy)
}

Definition at line 344 of file libopenjpegdec.c.