mirror of
https://github.com/drasko/open-ameba.git
synced 2024-11-27 16:50:29 +00:00
62 lines
1.7 KiB
C
62 lines
1.7 KiB
C
|
|
||
|
|
#ifndef _MJPEG_H
|
||
|
|
#define _MJPEG_H
|
||
|
|
|
||
|
|
#include "dlist.h" //list management
|
||
|
|
#include "basic_types.h"
|
||
|
|
#include "osdep_service.h"
|
||
|
|
//#include "osdep_api.h"
|
||
|
|
|
||
|
|
#define MJPEG_DEBUG 0
|
||
|
|
|
||
|
|
#if MJPEG_DEBUG
|
||
|
|
#define MJPEG_PRINTF(fmt, args...) printf("\n\r%s: " fmt, __FUNCTION__, ## args)
|
||
|
|
#define MJPEG_ERROR(fmt, args...) printf("\n\r%s: " fmt, __FUNCTION__, ## args)
|
||
|
|
#else
|
||
|
|
#define MJPEG_PRINTF(fmt, args...)
|
||
|
|
#define MJPEG_ERROR(fmt, args...)
|
||
|
|
#endif
|
||
|
|
|
||
|
|
struct jpeghdr {
|
||
|
|
unsigned int tspec:8; /* type-specific field */
|
||
|
|
unsigned int off:24; /* fragment byte offset */
|
||
|
|
u8 type; /* id of jpeg decoder params */
|
||
|
|
u8 q; /* quantization factor (or table id) */
|
||
|
|
u8 width; /* frame width in 8 pixel blocks */
|
||
|
|
u8 height; /* frame height in 8 pixel blocks */
|
||
|
|
};
|
||
|
|
|
||
|
|
struct jpeghdr_rst {
|
||
|
|
u16 dri; /*restart interval*/
|
||
|
|
unsigned int f:1; /*restart first bit flag*/
|
||
|
|
unsigned int l:1; /*restart last bit flag*/
|
||
|
|
unsigned int count:14; /*restart count*/
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
struct jpeghdr_qtable {
|
||
|
|
u8 mbz;
|
||
|
|
u8 precision;
|
||
|
|
u16 length;
|
||
|
|
};
|
||
|
|
|
||
|
|
#define RTP_JPEG_RESTART 0x40
|
||
|
|
#define USE_EXPLICIT_DQT 128
|
||
|
|
#define USE_IMPLICIT_DQT 0
|
||
|
|
|
||
|
|
struct rtp_jpeg_obj
|
||
|
|
{
|
||
|
|
struct jpeghdr jpghdr;
|
||
|
|
struct jpeghdr_rst rsthdr;
|
||
|
|
struct jpeghdr_qtable qtable;
|
||
|
|
u8 lqt[64*2]; /* Luma Quantizer table */
|
||
|
|
u8 cqt[64*2]; /* Croma Quantizer table */
|
||
|
|
int hdr_len;
|
||
|
|
int frame_offset;
|
||
|
|
};
|
||
|
|
|
||
|
|
/*for debug purpose*/
|
||
|
|
void dumpJpegHeader(struct jpeghdr *jpghdr);
|
||
|
|
void dumpRstDeader(struct jpeghdr_rst *rsthdr);
|
||
|
|
|
||
|
|
#endif /*_MJPEG_H*/
|