FFmpeg  2.1.1
Data Structures | Macros | Functions | Variables
libopenjpegdec.c File Reference

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>

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
 
#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 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 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, void *data, int *got_frame, AVPacket *avpkt)
 

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 []
 
static const AVOption options []
 
static const AVClass openjpeg_class
 
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().

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:
#define AV_PIX_FMT_YUV444P12
Definition: avcodec.h:4953
#define AV_PIX_FMT_YUV422P16
Definition: avcodec.h:4958
planar YUV 4:2:2, 16bpp, (1 Cr &amp; Cb sample per 2x1 Y samples)
Definition: avcodec.h:4538
planar YUV 4:4:4 32bpp, (1 Cr &amp; Cb sample per 1x1 Y &amp; A samples)
Definition: avcodec.h:4693
#define AV_PIX_FMT_YUVA420P16
Definition: avcodec.h:4982
#define AV_PIX_FMT_YUVA444P10
Definition: avcodec.h:4981
#define AV_PIX_FMT_YUVA420P10
Definition: avcodec.h:4979
planar YUV 4:2:2 24bpp, (1 Cr &amp; Cb sample per 2x1 Y &amp; A samples)
Definition: avcodec.h:4694
planar YUV 4:2:0, 20bpp, (1 Cr &amp; Cb sample per 2x2 Y &amp; A samples)
Definition: avcodec.h:4571
#define AV_PIX_FMT_YUV422P14
Definition: avcodec.h:4955
#define AV_PIX_FMT_YUVA422P9
Definition: avcodec.h:4977
#define AV_PIX_FMT_YUV444P14
Definition: avcodec.h:4956
#define AV_PIX_FMT_YUV420P12
Definition: avcodec.h:4951
planar YUV 4:1:1, 12bpp, (1 Cr &amp; Cb sample per 4x1 Y samples)
Definition: avcodec.h:4541
#define AV_PIX_FMT_YUVA422P10
Definition: avcodec.h:4980
#define AV_PIX_FMT_YUVA444P9
Definition: avcodec.h:4978
#define AV_PIX_FMT_YUV444P16
Definition: avcodec.h:4959
#define AV_PIX_FMT_YUV422P12
Definition: avcodec.h:4952
#define AV_PIX_FMT_YUVA444P16
Definition: avcodec.h:4984
planar YUV 4:2:0, 12bpp, (1 Cr &amp; Cb sample per 2x2 Y samples)
Definition: avcodec.h:4534
planar YUV 4:4:0 (1 Cr &amp; Cb sample per 1x2 Y samples)
Definition: avcodec.h:4569
#define AV_PIX_FMT_YUV444P9
Definition: avcodec.h:4947
#define AV_PIX_FMT_YUV420P9
Definition: avcodec.h:4945
planar YUV 4:4:4, 24bpp, (1 Cr &amp; Cb sample per 1x1 Y samples)
Definition: avcodec.h:4539
#define AV_PIX_FMT_YUV420P16
Definition: avcodec.h:4957
#define AV_PIX_FMT_YUV422P9
Definition: avcodec.h:4946
#define AV_PIX_FMT_YUV444P10
Definition: avcodec.h:4950
#define AV_PIX_FMT_YUV420P14
Definition: avcodec.h:4954
#define AV_PIX_FMT_YUVA422P16
Definition: avcodec.h:4983
#define AV_PIX_FMT_YUV420P10
Definition: avcodec.h:4948
#define AV_PIX_FMT_YUV422P10
Definition: avcodec.h:4949
#define AV_PIX_FMT_YUVA420P9
Definition: avcodec.h:4976
planar YUV 4:1:0, 9bpp, (1 Cr &amp; Cb sample per 4x4 Y samples)
Definition: avcodec.h:4540

Definition at line 50 of file libopenjpegdec.c.

#define XYZ_PIXEL_FORMATS   AV_PIX_FMT_XYZ12

Definition at line 62 of file libopenjpegdec.c.

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

Definition at line 391 of file libopenjpegdec.c.

Definition at line 392 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 78 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 107 of file libopenjpegdec.c.

Referenced by libopenjpeg_decode_frame().

static int libopenjpeg_ispacked ( enum AVPixelFormat  pix_fmt)
inlinestatic

Definition at line 140 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 156 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 170 of file libopenjpegdec.c.

Referenced by libopenjpeg_decode_frame().

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

Definition at line 188 of file libopenjpegdec.c.

Referenced by libopenjpeg_decode_frame().

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

Definition at line 206 of file libopenjpegdec.c.

Referenced by libopenjpeg_decode_frame().

static av_cold int libopenjpeg_decode_init ( AVCodecContext avctx)
static

Definition at line 227 of file libopenjpegdec.c.

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

Definition at line 235 of file libopenjpegdec.c.

Variable Documentation

enum AVPixelFormat libopenjpeg_rgb_pix_fmts[] = {RGB_PIXEL_FORMATS}
static

Definition at line 64 of file libopenjpegdec.c.

Referenced by libopenjpeg_guess_pix_fmt().

enum AVPixelFormat libopenjpeg_gray_pix_fmts[] = {GRAY_PIXEL_FORMATS}
static

Definition at line 65 of file libopenjpegdec.c.

Referenced by libopenjpeg_guess_pix_fmt().

enum AVPixelFormat libopenjpeg_yuv_pix_fmts[] = {YUV_PIXEL_FORMATS}
static

Definition at line 66 of file libopenjpegdec.c.

Referenced by libopenjpeg_guess_pix_fmt().

enum AVPixelFormat libopenjpeg_all_pix_fmts[]
static
Initial value:
#define XYZ_PIXEL_FORMATS
#define YUV_PIXEL_FORMATS
#define RGB_PIXEL_FORMATS
#define GRAY_PIXEL_FORMATS

Definition at line 67 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 },
}
#define VD
#define OFFSET(x)

Definition at line 394 of file libopenjpegdec.c.

const AVClass openjpeg_class
static
Initial value:
= {
.class_name = "libopenjpeg",
.item_name = av_default_item_name,
.option = options,
}
#define LIBAVUTIL_VERSION_INT
Definition: avcodec.h:820
const char * av_default_item_name(void *ctx)
Return the context name.
Definition: log.c:145
const OptionDef options[]
Definition: ffserver.c:4682

Definition at line 399 of file libopenjpegdec.c.

AVCodec ff_libopenjpeg_decoder
Initial value:
= {
.name = "libopenjpeg",
.long_name = NULL_IF_CONFIG_SMALL("OpenJPEG JPEG 2000"),
.priv_data_size = sizeof(LibOpenJPEGContext),
.max_lowres = 31,
.priv_class = &openjpeg_class,
}
static int libopenjpeg_decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
static av_cold int init(AVCodecContext *avctx)
Definition: avrndec.c:35
static const AVClass openjpeg_class
static av_cold int libopenjpeg_decode_init(AVCodecContext *avctx)
#define CODEC_CAP_DR1
Codec uses get_buffer() for allocating buffers and supports custom allocators.
Definition: avcodec.h:742
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:151
#define CODEC_CAP_FRAME_THREADS
Codec supports frame-level multithreading.
Definition: avcodec.h:811
static int decode(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
Definition: crystalhd.c:868

Definition at line 406 of file libopenjpegdec.c.