mjpeg.c File Reference

#include "AVI_avi.h"
#include <stdlib.h>
#include <string.h>
#include "jpeglib.h"
#include "jerror.h"
#include "MEM_guardedalloc.h"
#include "mjpeg.h"

Go to the source code of this file.

Defines
#define	PADUP(num, amt)   ((num+(amt-1))&~(amt-1))
Functions
static void	jpegmemdestmgr_build (j_compress_ptr cinfo, unsigned char *buffer, int bufsize)
static void	jpegmemsrcmgr_build (j_decompress_ptr dinfo, unsigned char *buffer, int bufsize)
static void	add_huff_table (j_decompress_ptr dinfo, JHUFF_TBL **htblptr, const UINT8 *bits, const UINT8 *val)
static void	std_huff_tables (j_decompress_ptr dinfo)
static int	Decode_JPEG (unsigned char *inBuffer, unsigned char *outBuffer, unsigned int width, unsigned int height, int bufsize)
static void	Compress_JPEG (int quality, unsigned char *outbuffer, unsigned char *inBuffer, int width, int height, int bufsize)
static void	interlace (unsigned char *to, unsigned char *from, int width, int height)
static void	deinterlace (int odd, unsigned char *to, unsigned char *from, int width, int height)
static int	check_and_decode_jpeg (unsigned char *inbuf, unsigned char *outbuf, int width, int height, int bufsize)
static void	check_and_compress_jpeg (int quality, unsigned char *outbuf, unsigned char *inbuf, int width, int height, int bufsize)
void *	avi_converter_from_mjpeg (AviMovie *movie, int stream, unsigned char *buffer, int *size)
void *	avi_converter_to_mjpeg (AviMovie *movie, int stream, unsigned char *buffer, int *size)
static void	jpegmemdestmgr_init_destination (j_compress_ptr cinfo)
static boolean	jpegmemdestmgr_empty_output_buffer (j_compress_ptr cinfo)
static void	jpegmemdestmgr_term_destination (j_compress_ptr cinfo)
static void	jpegmemsrcmgr_init_source (j_decompress_ptr dinfo)
static boolean	jpegmemsrcmgr_fill_input_buffer (j_decompress_ptr dinfo)
static void	jpegmemsrcmgr_skip_input_data (j_decompress_ptr dinfo, long skipcnt)
static void	jpegmemsrcmgr_term_source (j_decompress_ptr dinfo)
Variables
static int	numbytes

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Detailed Description

Definition in file mjpeg.c.

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Define Documentation

#define PADUP	(		num,
			amt
	)		((num+(amt-1))&~(amt-1))

Definition at line 46 of file mjpeg.c.

Referenced by check_and_compress_jpeg(), and check_and_decode_jpeg().

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Function Documentation

static void add_huff_table	(	j_decompress_ptr	dinfo,
		JHUFF_TBL **	htblptr,
		const UINT8 *	bits,
		const UINT8 *	val
	)		[static]

Definition at line 53 of file mjpeg.c.

References FALSE, and NULL.

Referenced by std_huff_tables().

void* avi_converter_from_mjpeg	(	AviMovie *	movie,
		int	stream,
		unsigned char *	buffer,
		int *	size
	)

Definition at line 337 of file mjpeg.c.

References check_and_decode_jpeg(), _AviMovie::header, _AviMainHeader::Height, interlace(), MEM_freeN(), MEM_mallocN(), and _AviMainHeader::Width.

Referenced by avi_format_convert().

void* avi_converter_to_mjpeg	(	AviMovie *	movie,
		int	stream,
		unsigned char *	buffer,
		int *	size
	)

Definition at line 361 of file mjpeg.c.

References check_and_compress_jpeg(), deinterlace(), _AviMovie::header, _AviMainHeader::Height, _AviMovie::interlace, MEM_freeN(), MEM_mallocN(), numbytes, _AviMovie::odd_fields, _AviStreamHeader::Quality, _AviStreamRec::sh, size(), _AviMovie::streams, and _AviMainHeader::Width.

Referenced by avi_format_convert().

static void check_and_compress_jpeg	(	int	quality,
		unsigned char *	outbuf,
		unsigned char *	inbuf,
		int	width,
		int	height,
		int	bufsize
	)		[static]

Definition at line 309 of file mjpeg.c.

References Compress_JPEG(), i, MEM_freeN(), MEM_mallocN(), and PADUP.

Referenced by avi_converter_to_mjpeg().

static int check_and_decode_jpeg	(	unsigned char *	inbuf,
		unsigned char *	outbuf,
		int	width,
		int	height,
		int	bufsize
	)		[static]

Definition at line 286 of file mjpeg.c.

References Decode_JPEG(), i, MEM_freeN(), MEM_mallocN(), and PADUP.

Referenced by avi_converter_from_mjpeg().

static void Compress_JPEG	(	int	quality,
		unsigned char *	outbuffer,
		unsigned char *	inBuffer,
		int	width,
		int	height,
		int	bufsize
	)		[static]

Definition at line 200 of file mjpeg.c.

References FALSE, i, jpegmemdestmgr_build(), and TRUE.

Referenced by check_and_compress_jpeg().

static int Decode_JPEG	(	unsigned char *	inBuffer,
		unsigned char *	outBuffer,
		unsigned int	width,
		unsigned int	height,
		int	bufsize
	)		[static]

Definition at line 147 of file mjpeg.c.

References jpegmemsrcmgr_build(), NULL, numbytes, std_huff_tables(), and TRUE.

Referenced by check_and_decode_jpeg().

static void deinterlace	(	int	odd,
		unsigned char *	to,
		unsigned char *	from,
		int	width,
		int	height
	)		[static]

Definition at line 274 of file mjpeg.c.

References i.

Referenced by avi_converter_to_mjpeg().

static void interlace	(	unsigned char *	to,
		unsigned char *	from,
		int	width,
		int	height
	)		[static]

Definition at line 262 of file mjpeg.c.

References i.

Referenced by avi_converter_from_mjpeg(), and pluginapi_force_ref().

static void jpegmemdestmgr_build	(	j_compress_ptr	cinfo,
		unsigned char *	buffer,
		int	bufsize
	)		[static]

Definition at line 411 of file mjpeg.c.

References jpegmemdestmgr_empty_output_buffer(), jpegmemdestmgr_init_destination(), jpegmemdestmgr_term_destination(), MEM_mallocN(), and numbytes.

Referenced by Compress_JPEG().

static boolean jpegmemdestmgr_empty_output_buffer

(

j_compress_ptr

cinfo

)

[static]

Definition at line 398 of file mjpeg.c.

References TRUE.

Referenced by jpegmemdestmgr_build().

static void jpegmemdestmgr_init_destination

(

j_compress_ptr

cinfo

)

[static]

Definition at line 393 of file mjpeg.c.

Referenced by jpegmemdestmgr_build().

static void jpegmemdestmgr_term_destination

(

j_compress_ptr

cinfo

)

[static]

Definition at line 404 of file mjpeg.c.

References MEM_freeN(), and numbytes.

Referenced by jpegmemdestmgr_build().

static void jpegmemsrcmgr_build	(	j_decompress_ptr	dinfo,
		unsigned char *	buffer,
		int	bufsize
	)		[static]

Definition at line 464 of file mjpeg.c.

References jpegmemsrcmgr_fill_input_buffer(), jpegmemsrcmgr_init_source(), jpegmemsrcmgr_skip_input_data(), jpegmemsrcmgr_term_source(), MEM_mallocN(), and numbytes.

Referenced by Decode_JPEG().

static boolean jpegmemsrcmgr_fill_input_buffer

(

j_decompress_ptr

dinfo

)

[static]

Definition at line 432 of file mjpeg.c.

References TRUE.

Referenced by jpegmemsrcmgr_build().

static void jpegmemsrcmgr_init_source

(

j_decompress_ptr

dinfo

)

[static]

Definition at line 427 of file mjpeg.c.

Referenced by jpegmemsrcmgr_build().

static void jpegmemsrcmgr_skip_input_data	(	j_decompress_ptr	dinfo,
		long	skipcnt
	)		[static]

Definition at line 448 of file mjpeg.c.

Referenced by jpegmemsrcmgr_build().

static void jpegmemsrcmgr_term_source

(

j_decompress_ptr

dinfo

)

[static]

Definition at line 457 of file mjpeg.c.

References MEM_freeN(), and numbytes.

Referenced by jpegmemsrcmgr_build().

static void std_huff_tables

(

j_decompress_ptr

dinfo

)

[static]

Definition at line 68 of file mjpeg.c.

References add_huff_table().

Referenced by Decode_JPEG().

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Variable Documentation

int numbytes [static]

Definition at line 51 of file mjpeg.c.

Referenced by avi_converter_to_mjpeg(), Decode_JPEG(), jpegmemdestmgr_build(), jpegmemdestmgr_term_destination(), jpegmemsrcmgr_build(), and jpegmemsrcmgr_term_source().