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westwood_aud.c File Reference

Westwood Studios AUD file demuxer by Mike Melanson (melan.nosp@m.son@.nosp@m.pcisy.nosp@m.s.ne.nosp@m.t) for more information on the Westwood file formats, visit: http://www.pcisys.net/~melanson/codecs/ http://www.geocities.com/SiliconValley/8682/aud3.txt. More...

#include "libavutil/channel_layout.h"
#include "libavutil/intreadwrite.h"
#include "avformat.h"
#include "internal.h"

Go to the source code of this file.

Macros

#define AUD_HEADER_SIZE   12
 
#define AUD_CHUNK_PREAMBLE_SIZE   8
 
#define AUD_CHUNK_SIGNATURE   0x0000DEAF
 

Functions

static int wsaud_probe (AVProbeData *p)
 
static int wsaud_read_header (AVFormatContext *s)
 
static int wsaud_read_packet (AVFormatContext *s, AVPacket *pkt)
 

Variables

AVInputFormat ff_wsaud_demuxer
 

Detailed Description

Westwood Studios AUD file demuxer by Mike Melanson (melan.nosp@m.son@.nosp@m.pcisy.nosp@m.s.ne.nosp@m.t) for more information on the Westwood file formats, visit: http://www.pcisys.net/~melanson/codecs/ http://www.geocities.com/SiliconValley/8682/aud3.txt.

Implementation note: There is no definite file signature for AUD files. The demuxer uses a probabilistic strategy for content detection. This entails performing sanity checks on certain header values in order to qualify a file. Refer to wsaud_probe() for the precise parameters.

Definition in file westwood_aud.c.

Macro Definition Documentation

#define AUD_HEADER_SIZE   12

Definition at line 41 of file westwood_aud.c.

Referenced by wsaud_probe(), and wsaud_read_header().

#define AUD_CHUNK_PREAMBLE_SIZE   8

Definition at line 42 of file westwood_aud.c.

Referenced by wsaud_probe(), and wsaud_read_packet().

#define AUD_CHUNK_SIGNATURE   0x0000DEAF

Definition at line 43 of file westwood_aud.c.

Referenced by wsaud_probe(), and wsaud_read_packet().

Function Documentation

static int wsaud_probe ( AVProbeData p)
static

Definition at line 45 of file westwood_aud.c.

static int wsaud_read_header ( AVFormatContext s)
static

Definition at line 83 of file westwood_aud.c.

static int wsaud_read_packet ( AVFormatContext s,
AVPacket pkt 
)
static

Definition at line 129 of file westwood_aud.c.

Variable Documentation

AVInputFormat ff_wsaud_demuxer
Initial value:
= {
.name = "wsaud",
.long_name = NULL_IF_CONFIG_SMALL("Westwood Studios audio"),
.read_probe = wsaud_probe,
.read_header = wsaud_read_header,
.read_packet = wsaud_read_packet,
}
static int wsaud_read_header(AVFormatContext *s)
Definition: westwood_aud.c:83
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:180
static int wsaud_read_packet(AVFormatContext *s, AVPacket *pkt)
Definition: westwood_aud.c:129
static int wsaud_probe(AVProbeData *p)
Definition: westwood_aud.c:45

Definition at line 181 of file westwood_aud.c.