libopenjpeg.c File Reference

JPEG 2000 decoder using libopenjpeg. More...

#include "libavutil/imgutils.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
 

Macros

#define OPJ_STATIC
 
#define JP2_SIG_TYPE   0x6A502020
 
#define JP2_SIG_VALUE   0x0D0A870A
 

Functions

static int check_image_attributes (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 libopenjpeg.c.

Macro Definition Documentation

#define JP2_SIG_TYPE   0x6A502020

Definition at line 34 of file libopenjpeg.c.

Referenced by libopenjpeg_decode_frame().

#define JP2_SIG_VALUE   0x0D0A870A

Definition at line 35 of file libopenjpeg.c.

Referenced by libopenjpeg_decode_frame().

#define OPJ_STATIC

Definition at line 31 of file libopenjpeg.c.

Function Documentation

static int check_image_attributes ( opj_image_t *  image)
static

Definition at line 42 of file libopenjpeg.c.

Referenced by libopenjpeg_decode_frame().

static av_cold int libopenjpeg_decode_close ( AVCodecContext avctx)
static

Definition at line 203 of file libopenjpeg.c.

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

Definition at line 69 of file libopenjpeg.c.

static av_cold int libopenjpeg_decode_init ( AVCodecContext avctx)
static

Definition at line 52 of file libopenjpeg.c.

static av_cold int libopenjpeg_decode_init_thread_copy ( AVCodecContext avctx)
static

Definition at line 61 of file libopenjpeg.c.

Variable Documentation

AVCodec ff_libopenjpeg_decoder
Initial value:
= {
.name = "libopenjpeg",
.priv_data_size = sizeof(LibOpenJPEGContext),
.max_lowres = 5,
.long_name = NULL_IF_CONFIG_SMALL("OpenJPEG based JPEG 2000 decoder"),
}
#define CODEC_CAP_FRAME_THREADS
Codec supports frame-level multithreading.
Definition: avcodec.h:788
static int decode(MimicContext *ctx, int quality, int num_coeffs, int is_iframe)
Definition: mimic.c:228
static int init(AVCodecParserContext *s)
Definition: h264_parser.c:336
#define CODEC_CAP_DR1
Codec uses get_buffer() for allocating buffers and supports custom allocators.
Definition: avcodec.h:719
static int libopenjpeg_decode_frame(AVCodecContext *avctx, void *data, int *data_size, AVPacket *avpkt)
Definition: libopenjpeg.c:69
static av_cold int libopenjpeg_decode_init_thread_copy(AVCodecContext *avctx)
Definition: libopenjpeg.c:61
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:191
#define ONLY_IF_THREADS_ENABLED(x)
Define a function with only the non-default version specified.
Definition: internal.h:231
static void close(AVCodecParserContext *s)
Definition: h264_parser.c:327
static av_cold int libopenjpeg_decode_close(AVCodecContext *avctx)
Definition: libopenjpeg.c:203
static av_cold int libopenjpeg_decode_init(AVCodecContext *avctx)
Definition: libopenjpeg.c:52

Definition at line 213 of file libopenjpeg.c.