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"

Include dependency graph for westwood_aud.c:

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_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().

#define AUD_HEADER_SIZE   12

Definition at line 41 of file westwood_aud.c.

Referenced by wsaud_probe(), and wsaud_read_header().

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,
}

Definition at line 175 of file westwood_aud.c.