asfdec_o.c File Reference

#include "libavutil/attributes.h"
#include "libavutil/common.h"
#include "libavutil/dict.h"
#include "libavutil/internal.h"
#include "libavutil/mathematics.h"
#include "libavutil/time_internal.h"
#include "avformat.h"
#include "avio_internal.h"
#include "avlanguage.h"
#include "internal.h"
#include "riff.h"
#include "asf.h"
#include "asfcrypt.h"

Go to the source code of this file.

Data Structures
struct	GUIDParseTable
struct	ASFPacket
struct	ASFStream
struct	ASFStreamData
struct	ASFContext

Macros
#define	ASF_BOOL   0x2
#define	ASF_WORD   0x5
#define	ASF_GUID   0x6
#define	ASF_DWORD   0x3
#define	ASF_QWORD   0x4
#define	ASF_UNICODE   0x0
#define	ASF_FLAG_BROADCAST   0x1
#define	ASF_BYTE_ARRAY   0x1
#define	ASF_TYPE_AUDIO   0x2
#define	ASF_TYPE_VIDEO   0x1
#define	ASF_STREAM_NUM   0x7F
#define	ASF_MAX_STREAMS   128
#define	BMP_HEADER_SIZE   40
#define	ASF_NUM_OF_PAYLOADS   0x3F
#define	ASF_ERROR_CORRECTION_LENGTH_TYPE   0x60
#define	ASF_PACKET_ERROR_CORRECTION_DATA_SIZE   0x2
#define	READ_LEN(flag, name, len)

Functions
static int	detect_unknown_subobject (AVFormatContext *s, int64_t offset, int64_t size)
static const GUIDParseTable *	find_guid (ff_asf_guid guid)
static int	asf_probe (const AVProbeData *pd)
static void	swap_guid (ff_asf_guid guid)
static void	align_position (AVIOContext *pb, int64_t offset, uint64_t size)
static int	asf_read_unknown (AVFormatContext *s, const GUIDParseTable *g)
static int	get_asf_string (AVIOContext *pb, int maxlen, char *buf, int buflen)
static int	asf_read_marker (AVFormatContext *s, const GUIDParseTable *g)
static int	asf_read_metadata (AVFormatContext *s, const char *title, uint16_t len, unsigned char *ch, uint16_t buflen)
static int	asf_read_value (AVFormatContext *s, const uint8_t *name, uint16_t val_len, int type, AVDictionary **met)
static int	asf_read_generic_value (AVIOContext *pb, int type, uint64_t *value)
static int	asf_set_metadata (AVFormatContext *s, const uint8_t *name, int type, AVDictionary **met)
static int	process_metadata (AVFormatContext *s, const uint8_t *name, uint16_t name_len, uint16_t val_len, uint16_t type, AVDictionary **met)
static int	asf_read_ext_content (AVFormatContext *s, const GUIDParseTable *g)
static AVStream *	find_stream (AVFormatContext *s, uint16_t st_num)
static int	asf_store_aspect_ratio (AVFormatContext *s, uint8_t st_num, uint8_t *name, int type)
static int	asf_read_metadata_obj (AVFormatContext *s, const GUIDParseTable *g)
static int	asf_read_content_desc (AVFormatContext *s, const GUIDParseTable *g)
static int	asf_read_properties (AVFormatContext *s, const GUIDParseTable *g)
static int	parse_video_info (AVFormatContext *avfmt, AVIOContext *pb, AVStream *st)
static int	asf_read_stream_properties (AVFormatContext *s, const GUIDParseTable *g)
static void	set_language (AVFormatContext *s, const char *rfc1766, AVDictionary **met)
static int	asf_read_ext_stream_properties (AVFormatContext *s, const GUIDParseTable *g)
static int	asf_read_language_list (AVFormatContext *s, const GUIDParseTable *g)
static int	asf_read_data (AVFormatContext *s, const GUIDParseTable *g)
static int	asf_read_simple_index (AVFormatContext *s, const GUIDParseTable *g)
static int	asf_read_subpayload (AVFormatContext *s, AVPacket *pkt, int is_header)
static void	reset_packet (ASFPacket *asf_pkt)
static int	asf_read_replicated_data (AVFormatContext *s, ASFPacket *asf_pkt)
static int	asf_read_multiple_payload (AVFormatContext *s, AVPacket *pkt, ASFPacket *asf_pkt)
static int	asf_read_single_payload (AVFormatContext *s, ASFPacket *asf_pkt)
static int	asf_read_payload (AVFormatContext *s, AVPacket *pkt)
static int	asf_read_packet_header (AVFormatContext *s)
static int	asf_deinterleave (AVFormatContext *s, ASFPacket *asf_pkt, int st_num)
static int	asf_read_packet (AVFormatContext *s, AVPacket *pkt)
static int	asf_read_close (AVFormatContext *s)
static void	reset_packet_state (AVFormatContext *s)
static int64_t	asf_read_timestamp (AVFormatContext *s, int stream_index, int64_t *pos, int64_t pos_limit)
static int	asf_read_seek (AVFormatContext *s, int stream_index, int64_t timestamp, int flags)
static int	asf_read_header (AVFormatContext *s)

Variables
static const GUIDParseTable	gdef []
const AVInputFormat	ff_asf_o_demuxer

Macro Definition Documentation

ASF_BOOL

#define ASF_BOOL   0x2

Definition at line 37 of file asfdec_o.c.

ASF_WORD

#define ASF_WORD   0x5

Definition at line 38 of file asfdec_o.c.

ASF_GUID

#define ASF_GUID   0x6

Definition at line 39 of file asfdec_o.c.

ASF_DWORD

#define ASF_DWORD   0x3

Definition at line 40 of file asfdec_o.c.

ASF_QWORD

#define ASF_QWORD   0x4

Definition at line 41 of file asfdec_o.c.

ASF_UNICODE

#define ASF_UNICODE   0x0

Definition at line 42 of file asfdec_o.c.

ASF_FLAG_BROADCAST

#define ASF_FLAG_BROADCAST   0x1

Definition at line 43 of file asfdec_o.c.

ASF_BYTE_ARRAY

#define ASF_BYTE_ARRAY   0x1

Definition at line 44 of file asfdec_o.c.

ASF_TYPE_AUDIO

#define ASF_TYPE_AUDIO   0x2

Definition at line 45 of file asfdec_o.c.

ASF_TYPE_VIDEO

#define ASF_TYPE_VIDEO   0x1

Definition at line 46 of file asfdec_o.c.

ASF_STREAM_NUM

#define ASF_STREAM_NUM   0x7F

Definition at line 47 of file asfdec_o.c.

ASF_MAX_STREAMS

#define ASF_MAX_STREAMS   128

Definition at line 48 of file asfdec_o.c.

BMP_HEADER_SIZE

#define BMP_HEADER_SIZE   40

Definition at line 49 of file asfdec_o.c.

ASF_NUM_OF_PAYLOADS

#define ASF_NUM_OF_PAYLOADS   0x3F

Definition at line 50 of file asfdec_o.c.

ASF_ERROR_CORRECTION_LENGTH_TYPE

#define ASF_ERROR_CORRECTION_LENGTH_TYPE   0x60

Definition at line 51 of file asfdec_o.c.

ASF_PACKET_ERROR_CORRECTION_DATA_SIZE

#define ASF_PACKET_ERROR_CORRECTION_DATA_SIZE   0x2

Definition at line 52 of file asfdec_o.c.

READ_LEN

#define READ_LEN	(		flag,
			name,
			len
	)

Value:

    do {                                     \
        if ((flag) == name ## IS_BYTE)       \
            len = avio_r8(pb);               \
        else if ((flag) == name ## IS_WORD)  \
            len = avio_rl16(pb);             \
        else if ((flag) == name ## IS_DWORD) \
            len = avio_rl32(pb);             \
        else                                 \
            len = 0;                         \
    } while(0)

Definition at line 950 of file asfdec_o.c.

Function Documentation

detect_unknown_subobject()

static int detect_unknown_subobject ( AVFormatContext *  s, int64_t  offset, int64_t  size  )

static

Definition at line 1551 of file asfdec_o.c.

Referenced by asf_read_unknown().

find_guid()

static const GUIDParseTable * find_guid ( ff_asf_guid  guid )

static

Definition at line 1535 of file asfdec_o.c.

Referenced by asf_read_ext_stream_properties(), asf_read_header(), and detect_unknown_subobject().

asf_probe()

static int asf_probe ( const AVProbeData *  pd )

static

Definition at line 146 of file asfdec_o.c.

swap_guid()

static void swap_guid ( ff_asf_guid  guid )

static

Definition at line 155 of file asfdec_o.c.

Referenced by find_guid().

align_position()

static void align_position ( AVIOContext *  pb, int64_t  offset, uint64_t  size  )

static

Definition at line 163 of file asfdec_o.c.

Referenced by asf_read_content_desc(), asf_read_data(), asf_read_ext_content(), asf_read_ext_stream_properties(), asf_read_header(), asf_read_language_list(), asf_read_marker(), asf_read_metadata_obj(), asf_read_simple_index(), and asf_read_stream_properties().

asf_read_unknown()

static int asf_read_unknown ( AVFormatContext *  s, const GUIDParseTable *  g  )

static

Definition at line 169 of file asfdec_o.c.

Referenced by detect_unknown_subobject().

get_asf_string()

static int get_asf_string ( AVIOContext *  pb, int  maxlen, char *  buf, int  buflen  )

static

Definition at line 199 of file asfdec_o.c.

Referenced by asf_read_language_list(), and asf_read_value().

asf_read_marker()

static int asf_read_marker ( AVFormatContext *  s, const GUIDParseTable *  g  )

static

Definition at line 216 of file asfdec_o.c.

asf_read_metadata()

static int asf_read_metadata ( AVFormatContext *  s, const char *  title, uint16_t  len, unsigned char *  ch, uint16_t  buflen  )

static

Definition at line 258 of file asfdec_o.c.

Referenced by asf_read_content_desc().

asf_read_value()

static int asf_read_value ( AVFormatContext *  s, const uint8_t *  name, uint16_t  val_len, int  type, AVDictionary **  met  )

static

Definition at line 272 of file asfdec_o.c.

Referenced by process_metadata().

asf_read_generic_value()

static int asf_read_generic_value ( AVIOContext *  pb, int  type, uint64_t *  value  )

static

Definition at line 313 of file asfdec_o.c.

Referenced by asf_set_metadata(), and asf_store_aspect_ratio().

asf_set_metadata()

static int asf_set_metadata ( AVFormatContext *  s, const uint8_t *  name, int  type, AVDictionary **  met  )

static

Definition at line 336 of file asfdec_o.c.

Referenced by process_metadata().

process_metadata()

static int process_metadata ( AVFormatContext *  s, const uint8_t *  name, uint16_t  name_len, uint16_t  val_len, uint16_t  type, AVDictionary **  met  )

static

Definition at line 355 of file asfdec_o.c.

Referenced by asf_read_ext_content(), and asf_read_metadata_obj().

asf_read_ext_content()

static int asf_read_ext_content ( AVFormatContext *  s, const GUIDParseTable *  g  )

static

Definition at line 383 of file asfdec_o.c.

find_stream()

static AVStream* find_stream ( AVFormatContext *  s, uint16_t  st_num  )

static

Definition at line 420 of file asfdec_o.c.

Referenced by asf_read_header().

asf_store_aspect_ratio()

static int asf_store_aspect_ratio ( AVFormatContext *  s, uint8_t  st_num, uint8_t *  name, int  type  )

static

Definition at line 436 of file asfdec_o.c.

Referenced by asf_read_metadata_obj().

asf_read_metadata_obj()

static int asf_read_metadata_obj ( AVFormatContext *  s, const GUIDParseTable *  g  )

static

Definition at line 456 of file asfdec_o.c.

asf_read_content_desc()

static int asf_read_content_desc ( AVFormatContext *  s, const GUIDParseTable *  g  )

static

Definition at line 504 of file asfdec_o.c.

asf_read_properties()

static int asf_read_properties ( AVFormatContext *  s, const GUIDParseTable *  g  )

static

Definition at line 533 of file asfdec_o.c.

parse_video_info()

static int parse_video_info ( AVFormatContext *  avfmt, AVIOContext *  pb, AVStream *  st  )

static

Definition at line 576 of file asfdec_o.c.

Referenced by asf_read_stream_properties().

asf_read_stream_properties()

static int asf_read_stream_properties ( AVFormatContext *  s, const GUIDParseTable *  g  )

static

Definition at line 600 of file asfdec_o.c.

set_language()

static void set_language ( AVFormatContext *  s, const char *  rfc1766, AVDictionary **  met  )

static

Definition at line 706 of file asfdec_o.c.

Referenced by asf_read_header().

asf_read_ext_stream_properties()

static int asf_read_ext_stream_properties ( AVFormatContext *  s, const GUIDParseTable *  g  )

static

Definition at line 719 of file asfdec_o.c.

asf_read_language_list()

static int asf_read_language_list ( AVFormatContext *  s, const GUIDParseTable *  g  )

static

Definition at line 789 of file asfdec_o.c.

asf_read_data()

static int asf_read_data ( AVFormatContext *  s, const GUIDParseTable *  g  )

static

Definition at line 815 of file asfdec_o.c.

asf_read_simple_index()

static int asf_read_simple_index ( AVFormatContext *  s, const GUIDParseTable *  g  )

static

Definition at line 851 of file asfdec_o.c.

asf_read_subpayload()

static int asf_read_subpayload ( AVFormatContext *  s, AVPacket *  pkt, int  is_header  )

static

Definition at line 962 of file asfdec_o.c.

Referenced by asf_read_multiple_payload(), and asf_read_payload().

reset_packet()

static void reset_packet ( ASFPacket *  asf_pkt )

static

Definition at line 1017 of file asfdec_o.c.

Referenced by asf_read_payload(), and reset_packet_state().

asf_read_replicated_data()

static int asf_read_replicated_data ( AVFormatContext *  s, ASFPacket *  asf_pkt  )

static

Definition at line 1027 of file asfdec_o.c.

Referenced by asf_read_multiple_payload().

asf_read_multiple_payload()

static int asf_read_multiple_payload ( AVFormatContext *  s, AVPacket *  pkt, ASFPacket *  asf_pkt  )

static

Definition at line 1049 of file asfdec_o.c.

Referenced by asf_read_payload().

asf_read_single_payload()

static int asf_read_single_payload ( AVFormatContext *  s, ASFPacket *  asf_pkt  )

static

Definition at line 1100 of file asfdec_o.c.

Referenced by asf_read_payload().

asf_read_payload()

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

static

Definition at line 1152 of file asfdec_o.c.

Referenced by asf_read_packet().

asf_read_packet_header()

static int asf_read_packet_header ( AVFormatContext *  s )

static

Definition at line 1232 of file asfdec_o.c.

Referenced by asf_read_packet().

asf_deinterleave()

static int asf_deinterleave ( AVFormatContext *  s, ASFPacket *  asf_pkt, int  st_num  )

static

Definition at line 1267 of file asfdec_o.c.

Referenced by asf_read_packet().

asf_read_packet()

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

static

Definition at line 1313 of file asfdec_o.c.

Referenced by asf_read_timestamp().

asf_read_close()

static int asf_read_close ( AVFormatContext *  s )

static

Definition at line 1397 of file asfdec_o.c.

Referenced by asf_read_header().

reset_packet_state()

static void reset_packet_state ( AVFormatContext *  s )

static

Definition at line 1414 of file asfdec_o.c.

Referenced by asf_read_seek(), and asf_read_timestamp().

asf_read_timestamp()

static int64_t asf_read_timestamp ( AVFormatContext *  s, int  stream_index, int64_t *  pos, int64_t  pos_limit  )

static

Definition at line 1450 of file asfdec_o.c.

asf_read_seek()

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

static

Definition at line 1512 of file asfdec_o.c.

asf_read_header()

static int asf_read_header ( AVFormatContext *  s )

static

Definition at line 1584 of file asfdec_o.c.

Variable Documentation

gdef

const GUIDParseTable gdef[]

static

Definition at line 900 of file asfdec_o.c.

Referenced by find_guid().

ff_asf_o_demuxer

const AVInputFormat ff_asf_o_demuxer

Initial value:

= {
    .name           = "asf_o",
    .long_name      = NULL_IF_CONFIG_SMALL("ASF (Advanced / Active Streaming 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_timestamp = asf_read_timestamp,
    .read_seek      = asf_read_seek,
    .flags          = AVFMT_NOBINSEARCH | AVFMT_NOGENSEARCH,
}

Definition at line 1667 of file asfdec_o.c.