avilib.c File Reference

#include <gpac/setup.h>
#include <gpac/internal/avilib.h>

Include dependency graph for avilib.c:

Macros
#define	INFO_LIST
#define	NEW_RIFF_THRES   (1900*1024*1024)
#define	NR_IXNN_CHUNKS   96
#define	DEBUG_ODML
#define	MAX_INFO_STRLEN   64
#define	FRAME_RATE_SCALE   1000000
#define	HEADERBYTES   2048
#define	AVI_MAX_LEN   (UINT_MAX-(1<<20)*16-HEADERBYTES)
#define	PAD_EVEN(x)   ( ((x)+1) & ~1 )
#define	OUTD(n)   long2str((unsigned char*) (ix00+bl),(s32)n); bl+=4
#define	OUTW(n)   ix00[bl] = (n)&0xff; ix00[bl+1] = (n>>8)&0xff; bl+=2
#define	OUTC(n)   ix00[bl] = (n)&0xff; bl+=1
#define	OUTS(s)   memcpy(ix00+bl,s,4); bl+=4
#define	OUT4CC(s)
#define	OUTLONG(n)
#define	OUTSHRT(n)
#define	OUTCHR(n)
#define	OUTMEM(d, s)
#define	AVIF_HASINDEX   0x00000010 /* Index at end of file */
#define	AVIF_MUSTUSEINDEX   0x00000020
#define	AVIF_ISINTERLEAVED   0x00000100
#define	AVIF_TRUSTCKTYPE   0x00000800 /* Use CKType to find key frames */
#define	AVIF_WASCAPTUREFILE   0x00010000
#define	AVIF_COPYRIGHTED   0x00020000
#define	S_IRWXU   00700 /* read, write, execute: owner */
#define	S_IRUSR   00400 /* read permission: owner */
#define	S_IWUSR   00200 /* write permission: owner */
#define	S_IXUSR   00100 /* execute permission: owner */
#define	S_IRWXG   00070 /* read, write, execute: group */
#define	S_IRGRP   00040 /* read permission: group */
#define	S_IWGRP   00020 /* write permission: group */
#define	S_IXGRP   00010 /* execute permission: group */
#define	S_IRWXO   00007 /* read, write, execute: other */
#define	S_IROTH   00004 /* read permission: other */
#define	S_IWOTH   00002 /* write permission: other */
#define	S_IXOTH   00001 /* execute permission: other */
#define	AVIF_HASINDEX   0x00000010 /* Index at end of file */
#define	AVIF_MUSTUSEINDEX   0x00000020
#define	AVIF_ISINTERLEAVED   0x00000100
#define	AVIF_TRUSTCKTYPE   0x00000800 /* Use CKType to find key frames */
#define	AVIF_WASCAPTUREFILE   0x00010000
#define	AVIF_COPYRIGHTED   0x00020000
#define	ERR_EXIT(x)

Functions
static u32	avi_read (FILE *fd, char *buf, u32 len)
static u32	avi_write (FILE *fd, char *buf, u32 len)
static void	long2str (unsigned char *dst, s32 n)
static u64	str2ullong (unsigned char *str)
static u32	str2ulong (unsigned char *str)
static u32	str2ushort (unsigned char *str)
static u32	str2ulong_len (unsigned char *str)
static u32	str2ulong_key (unsigned char *str)
static int	avi_sampsize (avi_t *AVI, int j)
static int	avi_add_chunk (avi_t *AVI, unsigned char *tag, unsigned char *data, u32 length)
static int	avi_ixnn_entry (avi_t *AVI, avistdindex_chunk *ch, avisuperindex_entry *en)
static int	avi_init_super_index (avi_t *AVI, unsigned char *idxtag, avisuperindex_chunk **si)
static int	avi_add_std_index (avi_t *AVI, unsigned char *idxtag, unsigned char *strtag, avistdindex_chunk *stdil)
static int	avi_add_odml_index_entry_core (avi_t *AVI, int flags, u64 pos, unsigned int len, avistdindex_chunk *si)
static int	avi_add_odml_index_entry (avi_t *AVI, unsigned char *tag, int flags, u64 pos, unsigned int len)
static int	avi_add_index_entry (avi_t *AVI, unsigned char *tag, int flags, u64 pos, u64 len)
GF_EXPORT avi_t *	AVI_open_output_file (char *filename, u64 opendml_threshold)
GF_EXPORT void	AVI_set_video (avi_t *AVI, int width, int height, double fps, char *compressor)
GF_EXPORT void	AVI_set_audio (avi_t *AVI, int channels, int rate, int bits, int format, int mp3rate)
int	avi_update_header (avi_t *AVI)
static int	avi_close_output_file (avi_t *AVI)
static int	avi_write_data (avi_t *AVI, char *data, unsigned int length, int audio, int keyframe)
GF_EXPORT int	AVI_write_frame (avi_t *AVI, u8 *data, int bytes, int keyframe)
GF_EXPORT int	AVI_write_audio (avi_t *AVI, u8 *data, int bytes)
int	AVI_set_audio_track (avi_t *AVI, u32 track)
int	AVI_get_audio_track (avi_t *AVI)
GF_EXPORT int	AVI_close (avi_t *AVI)
avi_t *	AVI_open_input_file (char *filename, int getIndex)
int	avi_parse_input_file (avi_t *AVI, int getIndex)
int	AVI_video_frames (avi_t *AVI)
int	AVI_video_width (avi_t *AVI)
int	AVI_video_height (avi_t *AVI)
double	AVI_frame_rate (avi_t *AVI)
char *	AVI_video_compressor (avi_t *AVI)
int	AVI_audio_tracks (avi_t *AVI)
int	AVI_audio_channels (avi_t *AVI)
int	AVI_audio_mp3rate (avi_t *AVI)
int	AVI_audio_bits (avi_t *AVI)
int	AVI_audio_format (avi_t *AVI)
int	AVI_audio_rate (avi_t *AVI)
int	AVI_frame_size (avi_t *AVI, int frame)
int	AVI_audio_size (avi_t *AVI, int frame)
u64	AVI_get_video_position (avi_t *AVI, int frame)
int	AVI_seek_start (avi_t *AVI)
int	AVI_set_video_position (avi_t *AVI, int frame)
int	AVI_read_frame (avi_t *AVI, u8 *vidbuf, int *keyframe)
int	AVI_set_audio_position (avi_t *AVI, int byte)
int	AVI_read_audio (avi_t *AVI, u8 *audbuf, int bytes, int *continuous)

Variables
int	AVI_errno = 0
static char	id_str [MAX_INFO_STRLEN]

Macro Definition Documentation

INFO_LIST

#define INFO_LIST

NEW_RIFF_THRES

#define NEW_RIFF_THRES   (1900*1024*1024)

NR_IXNN_CHUNKS

#define NR_IXNN_CHUNKS   96

DEBUG_ODML

#define DEBUG_ODML

MAX_INFO_STRLEN

#define MAX_INFO_STRLEN   64

FRAME_RATE_SCALE

#define FRAME_RATE_SCALE   1000000

HEADERBYTES

#define HEADERBYTES   2048

AVI_MAX_LEN

#define AVI_MAX_LEN   (UINT_MAX-(1<<20)*16-HEADERBYTES)

PAD_EVEN

#define PAD_EVEN

(

x

)

( ((x)+1) & ~1 )

OUTD

#define OUTD

(

n

)

long2str((unsigned char*) (ix00+bl),(s32)n); bl+=4

OUTW

#define OUTW

(

n

)

ix00[bl] = (n)&0xff; ix00[bl+1] = (n>>8)&0xff; bl+=2

OUTC

#define OUTC

(

n

)

ix00[bl] = (n)&0xff; bl+=1

OUTS

#define OUTS

(

s

)

memcpy(ix00+bl,s,4); bl+=4

OUT4CC

#define OUT4CC

(

s

)

Value:

   if(nhb<=HEADERBYTES-4) memcpy(AVI_header+nhb,s,4); \
   nhb += 4

OUTLONG

#define OUTLONG

(

n

)

Value:

   if(nhb<=HEADERBYTES-4) long2str(AVI_header+nhb, (s32)(n)); \
   nhb += 4

OUTSHRT

#define OUTSHRT

(

n

)

Value:

   if(nhb<=HEADERBYTES-2) { \
      AVI_header[nhb  ] = (u8) ((n   )&0xff); \
      AVI_header[nhb+1] = (u8) ((n>>8)&0xff); \
   } \
   nhb += 2

OUTCHR

#define OUTCHR

(

n

)

Value:

   if(nhb<=HEADERBYTES-1) { \
      AVI_header[nhb  ] = (n   )&0xff; \
   } \
   nhb += 1

OUTMEM

#define OUTMEM	(		d,
			s
	)

Value:

   { \
     u32 s_ = (u32) (s); \
     if(nhb + s_ <= HEADERBYTES) \
        memcpy(AVI_header+nhb, (d), s_); \
     nhb += s_; \
   }

AVIF_HASINDEX [1/2]

#define AVIF_HASINDEX   0x00000010 /* Index at end of file */

AVIF_MUSTUSEINDEX [1/2]

#define AVIF_MUSTUSEINDEX   0x00000020

AVIF_ISINTERLEAVED [1/2]

#define AVIF_ISINTERLEAVED   0x00000100

AVIF_TRUSTCKTYPE [1/2]

#define AVIF_TRUSTCKTYPE   0x00000800 /* Use CKType to find key frames */

AVIF_WASCAPTUREFILE [1/2]

#define AVIF_WASCAPTUREFILE   0x00010000

AVIF_COPYRIGHTED [1/2]

#define AVIF_COPYRIGHTED   0x00020000

S_IRWXU

#define S_IRWXU   00700 /* read, write, execute: owner */

S_IRUSR

#define S_IRUSR   00400 /* read permission: owner */

S_IWUSR

#define S_IWUSR   00200 /* write permission: owner */

S_IXUSR

#define S_IXUSR   00100 /* execute permission: owner */

S_IRWXG

#define S_IRWXG   00070 /* read, write, execute: group */

S_IRGRP

#define S_IRGRP   00040 /* read permission: group */

S_IWGRP

#define S_IWGRP   00020 /* write permission: group */

S_IXGRP

#define S_IXGRP   00010 /* execute permission: group */

S_IRWXO

#define S_IRWXO   00007 /* read, write, execute: other */

S_IROTH

#define S_IROTH   00004 /* read permission: other */

S_IWOTH

#define S_IWOTH   00002 /* write permission: other */

S_IXOTH

#define S_IXOTH   00001 /* execute permission: other */

AVIF_HASINDEX [2/2]

#define AVIF_HASINDEX   0x00000010 /* Index at end of file */

AVIF_MUSTUSEINDEX [2/2]

#define AVIF_MUSTUSEINDEX   0x00000020

AVIF_ISINTERLEAVED [2/2]

#define AVIF_ISINTERLEAVED   0x00000100

AVIF_TRUSTCKTYPE [2/2]

#define AVIF_TRUSTCKTYPE   0x00000800 /* Use CKType to find key frames */

AVIF_WASCAPTUREFILE [2/2]

#define AVIF_WASCAPTUREFILE   0x00010000

AVIF_COPYRIGHTED [2/2]

#define AVIF_COPYRIGHTED   0x00020000

ERR_EXIT

#define ERR_EXIT

(

x

)

Value:

{ \
   if (hdrl_data) { gf_free(hdrl_data); hdrl_data=NULL; }\
   AVI_close(AVI); \
   AVI_errno = x; \
   return 0; \
}

Function Documentation

avi_read()

static u32 avi_read ( FILE *  fd, char *  buf, u32  len  )

static

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avi_write()

static u32 avi_write ( FILE *  fd, char *  buf, u32  len  )

static

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long2str()

static void long2str ( unsigned char *  dst, s32  n  )

static

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str2ullong()

static u64 str2ullong ( unsigned char *  str )

static

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str2ulong()

static u32 str2ulong ( unsigned char *  str )

static

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str2ushort()

static u32 str2ushort ( unsigned char *  str )

static

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str2ulong_len()

static u32 str2ulong_len ( unsigned char *  str )

static

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str2ulong_key()

static u32 str2ulong_key ( unsigned char *  str )

static

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avi_sampsize()

static int avi_sampsize ( avi_t *  AVI, int  j  )

static

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avi_add_chunk()

static int avi_add_chunk ( avi_t *  AVI, unsigned char *  tag, unsigned char *  data, u32  length  )

static

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avi_ixnn_entry()

static int avi_ixnn_entry ( avi_t *  AVI, avistdindex_chunk *  ch, avisuperindex_entry *  en  )

static

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avi_init_super_index()

static int avi_init_super_index ( avi_t *  AVI, unsigned char *  idxtag, avisuperindex_chunk **  si  )

static

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avi_add_std_index()

static int avi_add_std_index ( avi_t *  AVI, unsigned char *  idxtag, unsigned char *  strtag, avistdindex_chunk *  stdil  )

static

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avi_add_odml_index_entry_core()

static int avi_add_odml_index_entry_core ( avi_t *  AVI, int  flags, u64  pos, unsigned int  len, avistdindex_chunk *  si  )

static

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avi_add_odml_index_entry()

static int avi_add_odml_index_entry ( avi_t *  AVI, unsigned char *  tag, int  flags, u64  pos, unsigned int  len  )

static

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avi_add_index_entry()

static int avi_add_index_entry ( avi_t *  AVI, unsigned char *  tag, int  flags, u64  pos, u64  len  )

static

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AVI_open_output_file()

GF_EXPORT avi_t* AVI_open_output_file	(	char *	filename,
		u64	opendml_threshold
	)

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AVI_set_video()

GF_EXPORT void AVI_set_video	(	avi_t *	AVI,
		int	width,
		int	height,
		double	fps,
		char *	compressor
	)

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AVI_set_audio()

GF_EXPORT void AVI_set_audio	(	avi_t *	AVI,
		int	channels,
		int	rate,
		int	bits,
		int	format,
		int	mp3rate
	)

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avi_update_header()

int avi_update_header

(

avi_t *

AVI

)

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avi_close_output_file()

static int avi_close_output_file ( avi_t *  AVI )

static

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avi_write_data()

static int avi_write_data ( avi_t *  AVI, char *  data, unsigned int  length, int  audio, int  keyframe  )

static

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AVI_write_frame()

GF_EXPORT int AVI_write_frame	(	avi_t *	AVI,
		u8 *	data,
		int	bytes,
		int	keyframe
	)

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AVI_write_audio()

GF_EXPORT int AVI_write_audio	(	avi_t *	AVI,
		u8 *	data,
		int	bytes
	)

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AVI_set_audio_track()

int AVI_set_audio_track	(	avi_t *	AVI,
		u32	track
	)

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AVI_get_audio_track()

int AVI_get_audio_track

(

avi_t *

AVI

)

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AVI_close()

GF_EXPORT int AVI_close

(

avi_t *

AVI

)

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AVI_open_input_file()

avi_t* AVI_open_input_file	(	char *	filename,
		int	getIndex
	)

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avi_parse_input_file()

int avi_parse_input_file	(	avi_t *	AVI,
		int	getIndex
	)

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AVI_video_frames()

int AVI_video_frames

(

avi_t *

AVI

)

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AVI_video_width()

int AVI_video_width

(

avi_t *

AVI

)

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AVI_video_height()

int AVI_video_height

(

avi_t *

AVI

)

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AVI_frame_rate()

double AVI_frame_rate

(

avi_t *

AVI

)

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AVI_video_compressor()

char* AVI_video_compressor

(

avi_t *

AVI

)

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AVI_audio_tracks()

int AVI_audio_tracks

(

avi_t *

AVI

)

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AVI_audio_channels()

int AVI_audio_channels

(

avi_t *

AVI

)

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AVI_audio_mp3rate()

int AVI_audio_mp3rate

(

avi_t *

AVI

)

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AVI_audio_bits()

int AVI_audio_bits

(

avi_t *

AVI

)

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AVI_audio_format()

int AVI_audio_format

(

avi_t *

AVI

)

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AVI_audio_rate()

int AVI_audio_rate

(

avi_t *

AVI

)

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AVI_frame_size()

int AVI_frame_size	(	avi_t *	AVI,
		int	frame
	)

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AVI_audio_size()

int AVI_audio_size	(	avi_t *	AVI,
		int	frame
	)

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AVI_get_video_position()

u64 AVI_get_video_position	(	avi_t *	AVI,
		int	frame
	)

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AVI_seek_start()

int AVI_seek_start

(

avi_t *

AVI

)

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AVI_set_video_position()

int AVI_set_video_position	(	avi_t *	AVI,
		int	frame
	)

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AVI_read_frame()

int AVI_read_frame	(	avi_t *	AVI,
		u8 *	vidbuf,
		int *	keyframe
	)

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AVI_set_audio_position()

int AVI_set_audio_position	(	avi_t *	AVI,
		int	byte
	)

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AVI_read_audio()

int AVI_read_audio	(	avi_t *	AVI,
		u8 *	audbuf,
		int	bytes,
		int *	continuous
	)

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Variable Documentation

AVI_errno

int AVI_errno = 0

id_str

char id_str[MAX_INFO_STRLEN]

static