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/mem.h"
#include "avformat.h"
#include "avlanguage.h"
#include "demux.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_FLAG_BROADCAST   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 FFInputFormat	ff_asf_o_demuxer

Macro Definition Documentation

ASF_FLAG_BROADCAST

#define ASF_FLAG_BROADCAST   0x1

Definition at line 37 of file asfdec_o.c.

Referenced by asf_read_data(), asf_read_header(), asf_read_packet(), and asf_read_properties().

ASF_TYPE_AUDIO

#define ASF_TYPE_AUDIO   0x2

Definition at line 38 of file asfdec_o.c.

ASF_TYPE_VIDEO

#define ASF_TYPE_VIDEO   0x1

Definition at line 39 of file asfdec_o.c.

ASF_STREAM_NUM

#define ASF_STREAM_NUM   0x7F

Definition at line 40 of file asfdec_o.c.

Referenced by asf_read_ext_stream_properties(), asf_read_payload(), and asf_read_stream_properties().

ASF_MAX_STREAMS

#define ASF_MAX_STREAMS   128

Definition at line 41 of file asfdec_o.c.

Referenced by asf_read_close(), asf_read_ext_stream_properties(), asf_read_header(), asf_read_language_list(), asf_read_metadata_obj(), asf_read_stream_properties(), and asf_store_aspect_ratio().

BMP_HEADER_SIZE

#define BMP_HEADER_SIZE   40

Definition at line 42 of file asfdec_o.c.

Referenced by parse_video_info().

ASF_NUM_OF_PAYLOADS

#define ASF_NUM_OF_PAYLOADS   0x3F

Definition at line 43 of file asfdec_o.c.

Referenced by asf_read_packet_header().

ASF_ERROR_CORRECTION_LENGTH_TYPE

#define ASF_ERROR_CORRECTION_LENGTH_TYPE   0x60

Definition at line 44 of file asfdec_o.c.

Referenced by asf_read_packet_header().

ASF_PACKET_ERROR_CORRECTION_DATA_SIZE

#define ASF_PACKET_ERROR_CORRECTION_DATA_SIZE   0x2

Definition at line 45 of file asfdec_o.c.

Referenced by asf_read_packet_header(), and put_payload_parsing_info().

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 936 of file asfdec_o.c.

Referenced by asf_read_packet_header(), and asf_read_payload().

Function Documentation

detect_unknown_subobject()

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

static

Definition at line 1539 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 1523 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 140 of file asfdec_o.c.

swap_guid()

static void swap_guid ( ff_asf_guid guid )

static

Definition at line 149 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 157 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 163 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 196 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 213 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 255 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 269 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 310 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 333 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 352 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 380 of file asfdec_o.c.

find_stream()

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

static

Definition at line 417 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 433 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 453 of file asfdec_o.c.

asf_read_content_desc()

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

static

Definition at line 501 of file asfdec_o.c.

asf_read_properties()

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

static

Definition at line 530 of file asfdec_o.c.

parse_video_info()

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

static

Definition at line 557 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 581 of file asfdec_o.c.

set_language()

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

static

Definition at line 687 of file asfdec_o.c.

Referenced by asf_read_header(), and parse_mca_labels().

asf_read_ext_stream_properties()

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

static

Definition at line 700 of file asfdec_o.c.

asf_read_language_list()

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

static

Definition at line 770 of file asfdec_o.c.

asf_read_data()

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

static

Definition at line 796 of file asfdec_o.c.

asf_read_simple_index()

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

static

Definition at line 832 of file asfdec_o.c.

asf_read_subpayload()

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

static

Definition at line 948 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 1003 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 1013 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 1035 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 1086 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 1138 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 1218 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 1255 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 1301 of file asfdec_o.c.

Referenced by asf_read_timestamp().

asf_read_close()

static int asf_read_close ( AVFormatContext * s )

static

Definition at line 1385 of file asfdec_o.c.

Referenced by asf_read_header().

reset_packet_state()

static void reset_packet_state ( AVFormatContext * s )

static

Definition at line 1402 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 1438 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 1500 of file asfdec_o.c.

asf_read_header()

static int asf_read_header ( AVFormatContext * s )

static

Definition at line 1572 of file asfdec_o.c.

Variable Documentation

gdef

const GUIDParseTable gdef[]

static

Definition at line 886 of file asfdec_o.c.

Referenced by find_guid().

ff_asf_o_demuxer

const FFInputFormat ff_asf_o_demuxer

Initial value:

= {
    .p.name         = "asf_o",
    .p.long_name    = NULL_IF_CONFIG_SMALL("ASF (Advanced / Active Streaming Format)"),
    .p.flags        = AVFMT_NOBINSEARCH | AVFMT_NOGENSEARCH,
    .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,
}

Definition at line 1655 of file asfdec_o.c.