#include "libavutil/bswap.h"
#include "libavutil/common.h"
#include "libavutil/avstring.h"
#include "libavutil/dict.h"
#include "libavutil/mathematics.h"
#include "libavcodec/mpegaudio.h"
#include "avformat.h"
#include "internal.h"
#include "avio_internal.h"
#include "riff.h"
#include "asf.h"
#include "asfcrypt.h"
#include "avlanguage.h"
#include <assert.h>

Data Structures
struct	ASFContext

Macros
#define	ASF_MAX_STREAMS 127
#define	FRAME_HEADER_SIZE 17
#define	print_guid(g)
#define	DO_2BITS(bits, var, defval)

Functions
void	ff_get_guid (AVIOContext s, ff_asf_guid g)
static int	asf_probe (AVProbeData *pd)
static int	get_value (AVIOContext *pb, int type)
static void	get_tag (AVFormatContext s, const char key, int type, int len)
static int	asf_read_file_properties (AVFormatContext *s, int64_t size)
static int	asf_read_stream_properties (AVFormatContext *s, int64_t size)
static int	asf_read_ext_stream_properties (AVFormatContext *s, int64_t size)
static int	asf_read_content_desc (AVFormatContext *s, int64_t size)
static int	asf_read_ext_content_desc (AVFormatContext *s, int64_t size)
static int	asf_read_language_list (AVFormatContext *s, int64_t size)
static int	asf_read_metadata (AVFormatContext *s, int64_t size)
static int	asf_read_marker (AVFormatContext *s, int64_t size)
static int	asf_read_header (AVFormatContext s, AVFormatParameters ap)
static int	ff_asf_get_packet (AVFormatContext s, AVIOContext pb)
	Load a single ASF packet into the demuxer.
static int	asf_read_frame_header (AVFormatContext s, AVIOContext pb)
static int	ff_asf_parse_packet (AVFormatContext s, AVIOContext pb, AVPacket *pkt)
	Parse data from individual ASF packets (which were previously loaded with asf_get_packet()).
static int	asf_read_packet (AVFormatContext s, AVPacket pkt)
static void	asf_reset_header (AVFormatContext *s)
static int	asf_read_close (AVFormatContext *s)
static int64_t	asf_read_pts (AVFormatContext s, int stream_index, int64_t ppos, int64_t pos_limit)
static void	asf_build_simple_index (AVFormatContext *s, int stream_index)
static int	asf_read_seek (AVFormatContext *s, int stream_index, int64_t pts, int flags)

Variables
static const ff_asf_guid	index_guid
AVInputFormat	ff_asf_demuxer

Macro Definition Documentation

#define ASF_MAX_STREAMS 127

Definition at line 81 of file asfdec.c.

Referenced by asf_read_pts(), and asf_read_stream_properties().

#define DO_2BITS	(	bits,
		var,
		defval
	)

Value:

switch (bits & 3) \
    { \
    case 3: var = avio_rl32(pb); rsize += 4; break; \
    case 2: var = avio_rl16(pb); rsize += 2; break; \
    case 1: var = avio_r8(pb);   rsize++; break; \
    default: var = defval; break; \
    }

Definition at line 710 of file asfdec.c.

Referenced by asf_read_frame_header(), and ff_asf_get_packet().

#define FRAME_HEADER_SIZE 17

Definition at line 82 of file asfdec.c.

Referenced by asf_read_packet(), ff_asf_parse_packet(), ffm_read_packet(), and ffm_write_packet().

#define print_guid ( g )

Definition at line 133 of file asfdec.c.

Referenced by asf_read_header().

Function Documentation

static void asf_build_simple_index	(	AVFormatContext *	s,
		int	stream_index
	)

static

Definition at line 1216 of file asfdec.c.

Referenced by asf_read_seek().

static int asf_probe ( AVProbeData * pd )

static

Definition at line 142 of file asfdec.c.

static int asf_read_close ( AVFormatContext * s )

static

Definition at line 1158 of file asfdec.c.

static int asf_read_content_desc	(	AVFormatContext *	s,
		int64_t	size
	)

static

Definition at line 448 of file asfdec.c.

Referenced by asf_read_header().

static int asf_read_ext_content_desc	(	AVFormatContext *	s,
		int64_t	size
	)

static

My sample has that stream set to 0 maybe that mean the container. Asf stream count start at 1. I am using 0 to the container value since it's unused

Definition at line 467 of file asfdec.c.

Referenced by asf_read_header().

static int asf_read_ext_stream_properties	(	AVFormatContext *	s,
		int64_t	size
	)

static

Definition at line 400 of file asfdec.c.

Referenced by asf_read_header().

static int asf_read_file_properties	(	AVFormatContext *	s,
		int64_t	size
	)

static

Definition at line 189 of file asfdec.c.

Referenced by asf_read_header().

static int asf_read_frame_header	(	AVFormatContext *	s,
		AVIOContext *	pb
	)

static

Returns: <0 if error

Definition at line 817 of file asfdec.c.

Referenced by ff_asf_parse_packet().

static int asf_read_header	(	AVFormatContext *	s,
		AVFormatParameters *	ap
	)

static

Definition at line 585 of file asfdec.c.

static int asf_read_language_list	(	AVFormatContext *	s,
		int64_t	size
	)

static

Definition at line 502 of file asfdec.c.

Referenced by asf_read_header().

static int asf_read_marker	(	AVFormatContext *	s,
		int64_t	size
	)

static

Definition at line 552 of file asfdec.c.

Referenced by asf_read_header().

static int asf_read_metadata	(	AVFormatContext *	s,
		int64_t	size
	)

static

Definition at line 520 of file asfdec.c.

Referenced by asf_read_header().

static int asf_read_packet	(	AVFormatContext *	s,
		AVPacket *	pkt
	)

static

Definition at line 1105 of file asfdec.c.

Referenced by asf_read_pts().

static int64_t asf_read_pts	(	AVFormatContext *	s,
		int	stream_index,
		int64_t *	ppos,
		int64_t	pos_limit
	)

static

Definition at line 1165 of file asfdec.c.

static int asf_read_seek	(	AVFormatContext *	s,
		int	stream_index,
		int64_t	pts,
		int	flags
	)

static

Definition at line 1265 of file asfdec.c.

static int asf_read_stream_properties	(	AVFormatContext *	s,
		int64_t	size
	)

static

Definition at line 213 of file asfdec.c.

Referenced by asf_read_header().

static void asf_reset_header ( AVFormatContext * s )

static

Definition at line 1124 of file asfdec.c.

Referenced by asf_read_close(), asf_read_pts(), and asf_read_seek().

static int ff_asf_get_packet	(	AVFormatContext *	s,
		AVIOContext *	pb
	)

static

Load a single ASF packet into the demuxer.

Parameters

s	demux context
pb	context to read data from

Returns: 0 on success, <0 on error

This code allows handling of -EAGAIN at packet boundaries (i.e. if the packet sync code above triggers -EAGAIN). This does not imply complete -EAGAIN handling support at random positions in the stream.

Definition at line 725 of file asfdec.c.

Referenced by asf_read_packet().

static int ff_asf_parse_packet	(	AVFormatContext *	s,
		AVIOContext *	pb,
		AVPacket *	pkt
	)

static

Parse data from individual ASF packets (which were previously loaded with asf_get_packet()).

Parameters

s	demux context
pb	context to read data from
pkt	pointer to store packet data into

Returns: 0 if data was stored in pkt, <0 on error or 1 if more ASF packets need to be loaded (through asf_get_packet())

Definition at line 909 of file asfdec.c.

Referenced by asf_read_packet().

void ff_get_guid	(	AVIOContext *	s,
		ff_asf_guid *	g
	)

Definition at line 136 of file asfdec.c.

Referenced by asf_build_simple_index(), asf_read_ext_stream_properties(), asf_read_file_properties(), asf_read_header(), asf_read_stream_properties(), parse_chunks(), parse_legacy_attrib(), and parse_media_type().

static void get_tag	(	AVFormatContext *	s,
		const char *	key,
		int	type,
		int	len
	)

static

Definition at line 161 of file asfdec.c.

Referenced by asf_read_content_desc(), and asf_read_ext_content_desc().

static int get_value	(	AVIOContext *	pb,
		int	type
	)

static

Definition at line 151 of file asfdec.c.

Referenced by asf_read_ext_content_desc(), and get_tag().

Variable Documentation

AVInputFormat ff_asf_demuxer

Initial value:

 {
    .name           = "asf",
    .long_name      = NULL_IF_CONFIG_SMALL("ASF format"),
    .priv_data_size = sizeof(ASFContext),
    .read_probe     = asf_probe,
    .read_header    = asf_read_header,
    .read_packet    = asf_read_packet,
    .read_close     = asf_read_close,
    .read_seek      = asf_read_seek,
    .read_timestamp = asf_read_pts,
    .flags = AVFMT_NOBINSEARCH | AVFMT_NOGENSEARCH,
}

Definition at line 1307 of file asfdec.c.

Referenced by ff_wms_parse_sdp_a_line().

const ff_asf_guid index_guid

static

Initial value:

 {
    0x90, 0x08, 0x00, 0x33, 0xb1, 0xe5, 0xcf, 0x11, 0x89, 0xf4, 0x00, 0xa0, 0xc9, 0x03, 0x49, 0xcb
}

Definition at line 85 of file asfdec.c.

Referenced by asf_build_simple_index().

Data Structures

Macros

Functions

Variables

Macro Definition Documentation

Function Documentation

Variable Documentation