asfenc.c File Reference

#include "config_components.h"
#include "libavutil/avassert.h"
#include "libavutil/dict.h"
#include "libavutil/mathematics.h"
#include "libavutil/mem.h"
#include "libavutil/opt.h"
#include "libavcodec/codec_desc.h"
#include "avformat.h"
#include "avlanguage.h"
#include "avio_internal.h"
#include "internal.h"
#include "mux.h"
#include "riff.h"
#include "asf.h"

Go to the source code of this file.

Data Structures
struct	ASFStream
struct	ASFContext

Macros
#define	ASF_INDEXED_INTERVAL   10000000
#define	ASF_INDEX_BLOCK   (1<<9)
#define	ASF_PAYLOADS_PER_PACKET   63
#define	ASF_PACKET_ERROR_CORRECTION_DATA_SIZE   0x2
#define	ASF_PACKET_ERROR_CORRECTION_FLAGS
#define	ASF_PACKET_ERROR_CORRECTION_FLAGS_FIELD_SIZE   0
#define	ASF_PPI_PROPERTY_FLAGS
#define	ASF_PPI_LENGTH_TYPE_FLAGS   0
#define	ASF_PAYLOAD_FLAGS   ASF_PL_FLAG_PAYLOAD_LENGTH_FIELD_IS_WORD
#define	ASF_PPI_SEQUENCE_FIELD_SIZE   1
#define	ASF_PPI_SEQUENCE_FIELD_SIZE   2
#define	ASF_PPI_SEQUENCE_FIELD_SIZE   4
#define	ASF_PPI_PACKET_LENGTH_FIELD_SIZE   1
#define	ASF_PPI_PACKET_LENGTH_FIELD_SIZE   2
#define	ASF_PPI_PACKET_LENGTH_FIELD_SIZE   4
#define	ASF_PPI_PADDING_LENGTH_FIELD_SIZE   1
#define	ASF_PPI_PADDING_LENGTH_FIELD_SIZE   2
#define	ASF_PPI_PADDING_LENGTH_FIELD_SIZE   4
#define	ASF_PAYLOAD_REPLICATED_DATA_LENGTH_FIELD_SIZE   1
#define	ASF_PAYLOAD_REPLICATED_DATA_LENGTH_FIELD_SIZE   2
#define	ASF_PAYLOAD_REPLICATED_DATA_LENGTH_FIELD_SIZE   4
#define	ASF_PAYLOAD_OFFSET_INTO_MEDIA_OBJECT_FIELD_SIZE   1
#define	ASF_PAYLOAD_OFFSET_INTO_MEDIA_OBJECT_FIELD_SIZE   2
#define	ASF_PAYLOAD_OFFSET_INTO_MEDIA_OBJECT_FIELD_SIZE   4
#define	ASF_PAYLOAD_MEDIA_OBJECT_NUMBER_FIELD_SIZE   1
#define	ASF_PAYLOAD_MEDIA_OBJECT_NUMBER_FIELD_SIZE   2
#define	ASF_PAYLOAD_MEDIA_OBJECT_NUMBER_FIELD_SIZE   4
#define	ASF_PAYLOAD_LENGTH_FIELD_SIZE   1
#define	ASF_PAYLOAD_LENGTH_FIELD_SIZE   2
#define	PACKET_HEADER_MIN_SIZE
#define	ASF_PAYLOAD_REPLICATED_DATA_LENGTH   0x08
#define	PAYLOAD_HEADER_SIZE_SINGLE_PAYLOAD
#define	PAYLOAD_HEADER_SIZE_MULTIPLE_PAYLOADS
#define	SINGLE_PAYLOAD_HEADERS
#define	MULTI_PAYLOAD_HEADERS
#define	DATA_HEADER_SIZE   50
#define	PACKET_SIZE_MAX   65536
#define	PACKET_SIZE_MIN   100
#define	PREROLL_TIME   3100

Functions
static void	put_str16 (AVIOContext *s, AVIOContext *dyn_buf, const char *tag)
static int64_t	put_header (AVIOContext *pb, const ff_asf_guid *g)
static void	end_header (AVIOContext *pb, int64_t pos)
static void	put_chunk (AVFormatContext *s, int type, int payload_length, int flags)
static int32_t	get_send_time (ASFContext *asf, int64_t pres_time, uint64_t *offset)
static void	asf_write_markers (AVFormatContext *s, AVIOContext *dyn_buf)
static int	asf_write_header1 (AVFormatContext *s, int64_t file_size, int64_t data_chunk_size)
static int	asf_write_header (AVFormatContext *s)
static int	asf_write_stream_header (AVFormatContext *s)
static int	put_payload_parsing_info (AVFormatContext *s, unsigned sendtime, unsigned duration, int nb_payloads, int padsize)
static void	flush_packet (AVFormatContext *s)
static void	put_payload_header (AVFormatContext *s, ASFStream *stream, int64_t presentation_time, int m_obj_size, int m_obj_offset, int payload_len, int flags)
static void	put_frame (AVFormatContext *s, ASFStream *stream, AVStream *avst, int64_t timestamp, const uint8_t *buf, int m_obj_size, int flags)
static int	update_index (AVFormatContext *s, int start_sec, uint32_t packet_number, uint16_t packet_count, uint64_t packet_offset)
static int	asf_write_packet (AVFormatContext *s, AVPacket *pkt)
static int	asf_write_index (AVFormatContext *s, const ASFIndex *index, uint16_t max, uint32_t count)
static int	asf_write_trailer (AVFormatContext *s)
static void	asf_deinit (AVFormatContext *s)

Variables
static const AVCodecTag	codec_asf_bmp_tags []
static const AVCodecTag *const	asf_codec_tags []
static const AVOption	asf_options []
static const AVClass	asf_muxer_class

Macro Definition Documentation

ASF_INDEXED_INTERVAL

#define ASF_INDEXED_INTERVAL   10000000

Definition at line 38 of file asfenc.c.

Referenced by asf_write_index(), and asf_write_packet().

ASF_INDEX_BLOCK

#define ASF_INDEX_BLOCK   (1<<9)

Definition at line 39 of file asfenc.c.

Referenced by asf_write_header(), and update_index().

ASF_PAYLOADS_PER_PACKET

#define ASF_PAYLOADS_PER_PACKET   63

Definition at line 40 of file asfenc.c.

Referenced by put_frame().

ASF_PACKET_ERROR_CORRECTION_DATA_SIZE

#define ASF_PACKET_ERROR_CORRECTION_DATA_SIZE   0x2

Definition at line 42 of file asfenc.c.

ASF_PACKET_ERROR_CORRECTION_FLAGS

#define ASF_PACKET_ERROR_CORRECTION_FLAGS

Value:

    (ASF_PACKET_FLAG_ERROR_CORRECTION_PRESENT |    \
     ASF_PACKET_ERROR_CORRECTION_DATA_SIZE)

Definition at line 43 of file asfenc.c.

Referenced by put_payload_parsing_info().

ASF_PACKET_ERROR_CORRECTION_FLAGS_FIELD_SIZE

#define ASF_PACKET_ERROR_CORRECTION_FLAGS_FIELD_SIZE   0

Definition at line 50 of file asfenc.c.

ASF_PPI_PROPERTY_FLAGS

#define ASF_PPI_PROPERTY_FLAGS

Value:

    (ASF_PL_FLAG_REPLICATED_DATA_LENGTH_FIELD_IS_BYTE           |    \
     ASF_PL_FLAG_OFFSET_INTO_MEDIA_OBJECT_LENGTH_FIELD_IS_DWORD |    \
     ASF_PL_FLAG_MEDIA_OBJECT_NUMBER_LENGTH_FIELD_IS_BYTE       |    \
     ASF_PL_FLAG_STREAM_NUMBER_LENGTH_FIELD_IS_BYTE)

Definition at line 53 of file asfenc.c.

Referenced by put_payload_parsing_info().

ASF_PPI_LENGTH_TYPE_FLAGS

#define ASF_PPI_LENGTH_TYPE_FLAGS   0

Definition at line 59 of file asfenc.c.

Referenced by put_payload_parsing_info().

ASF_PAYLOAD_FLAGS

#define ASF_PAYLOAD_FLAGS   ASF_PL_FLAG_PAYLOAD_LENGTH_FIELD_IS_WORD

Definition at line 61 of file asfenc.c.

Referenced by put_payload_parsing_info().

ASF_PPI_SEQUENCE_FIELD_SIZE [1/3]

#define ASF_PPI_SEQUENCE_FIELD_SIZE   1

Definition at line 64 of file asfenc.c.

ASF_PPI_SEQUENCE_FIELD_SIZE [2/3]

#define ASF_PPI_SEQUENCE_FIELD_SIZE   2

Definition at line 64 of file asfenc.c.

ASF_PPI_SEQUENCE_FIELD_SIZE [3/3]

#define ASF_PPI_SEQUENCE_FIELD_SIZE   4

Definition at line 64 of file asfenc.c.

ASF_PPI_PACKET_LENGTH_FIELD_SIZE [1/3]

#define ASF_PPI_PACKET_LENGTH_FIELD_SIZE   1

Definition at line 77 of file asfenc.c.

ASF_PPI_PACKET_LENGTH_FIELD_SIZE [2/3]

#define ASF_PPI_PACKET_LENGTH_FIELD_SIZE   2

Definition at line 77 of file asfenc.c.

ASF_PPI_PACKET_LENGTH_FIELD_SIZE [3/3]

#define ASF_PPI_PACKET_LENGTH_FIELD_SIZE   4

Definition at line 77 of file asfenc.c.

ASF_PPI_PADDING_LENGTH_FIELD_SIZE [1/3]

#define ASF_PPI_PADDING_LENGTH_FIELD_SIZE   1

Definition at line 90 of file asfenc.c.

ASF_PPI_PADDING_LENGTH_FIELD_SIZE [2/3]

#define ASF_PPI_PADDING_LENGTH_FIELD_SIZE   2

Definition at line 90 of file asfenc.c.

ASF_PPI_PADDING_LENGTH_FIELD_SIZE [3/3]

#define ASF_PPI_PADDING_LENGTH_FIELD_SIZE   4

Definition at line 90 of file asfenc.c.

ASF_PAYLOAD_REPLICATED_DATA_LENGTH_FIELD_SIZE [1/3]

#define ASF_PAYLOAD_REPLICATED_DATA_LENGTH_FIELD_SIZE   1

Definition at line 103 of file asfenc.c.

ASF_PAYLOAD_REPLICATED_DATA_LENGTH_FIELD_SIZE [2/3]

#define ASF_PAYLOAD_REPLICATED_DATA_LENGTH_FIELD_SIZE   2

Definition at line 103 of file asfenc.c.

ASF_PAYLOAD_REPLICATED_DATA_LENGTH_FIELD_SIZE [3/3]

#define ASF_PAYLOAD_REPLICATED_DATA_LENGTH_FIELD_SIZE   4

Definition at line 103 of file asfenc.c.

ASF_PAYLOAD_OFFSET_INTO_MEDIA_OBJECT_FIELD_SIZE [1/3]

#define ASF_PAYLOAD_OFFSET_INTO_MEDIA_OBJECT_FIELD_SIZE   1

Definition at line 116 of file asfenc.c.

ASF_PAYLOAD_OFFSET_INTO_MEDIA_OBJECT_FIELD_SIZE [2/3]

#define ASF_PAYLOAD_OFFSET_INTO_MEDIA_OBJECT_FIELD_SIZE   2

Definition at line 116 of file asfenc.c.

ASF_PAYLOAD_OFFSET_INTO_MEDIA_OBJECT_FIELD_SIZE [3/3]

#define ASF_PAYLOAD_OFFSET_INTO_MEDIA_OBJECT_FIELD_SIZE   4

Definition at line 116 of file asfenc.c.

ASF_PAYLOAD_MEDIA_OBJECT_NUMBER_FIELD_SIZE [1/3]

#define ASF_PAYLOAD_MEDIA_OBJECT_NUMBER_FIELD_SIZE   1

Definition at line 129 of file asfenc.c.

ASF_PAYLOAD_MEDIA_OBJECT_NUMBER_FIELD_SIZE [2/3]

#define ASF_PAYLOAD_MEDIA_OBJECT_NUMBER_FIELD_SIZE   2

Definition at line 129 of file asfenc.c.

ASF_PAYLOAD_MEDIA_OBJECT_NUMBER_FIELD_SIZE [3/3]

#define ASF_PAYLOAD_MEDIA_OBJECT_NUMBER_FIELD_SIZE   4

Definition at line 129 of file asfenc.c.

ASF_PAYLOAD_LENGTH_FIELD_SIZE [1/2]

#define ASF_PAYLOAD_LENGTH_FIELD_SIZE   1

Definition at line 142 of file asfenc.c.

ASF_PAYLOAD_LENGTH_FIELD_SIZE [2/2]

#define ASF_PAYLOAD_LENGTH_FIELD_SIZE   2

Definition at line 142 of file asfenc.c.

PACKET_HEADER_MIN_SIZE

#define PACKET_HEADER_MIN_SIZE

Value:

    (ASF_PACKET_ERROR_CORRECTION_FLAGS_FIELD_SIZE +       \
     ASF_PACKET_ERROR_CORRECTION_DATA_SIZE +              \
     1 +        /* Length Type Flags */                   \
     1 +        /* Property Flags */                      \
     ASF_PPI_PACKET_LENGTH_FIELD_SIZE +                   \
     ASF_PPI_SEQUENCE_FIELD_SIZE +                        \
     ASF_PPI_PADDING_LENGTH_FIELD_SIZE +                  \
     4 +        /* Send Time Field */                     \
     2)         /* Duration Field */

Definition at line 151 of file asfenc.c.

Referenced by put_frame(), and put_payload_parsing_info().

ASF_PAYLOAD_REPLICATED_DATA_LENGTH

#define ASF_PAYLOAD_REPLICATED_DATA_LENGTH   0x08

Definition at line 163 of file asfenc.c.

Referenced by put_payload_header().

PAYLOAD_HEADER_SIZE_SINGLE_PAYLOAD

#define PAYLOAD_HEADER_SIZE_SINGLE_PAYLOAD

Value:

    (1 +     /* Stream Number */                          \
     ASF_PAYLOAD_MEDIA_OBJECT_NUMBER_FIELD_SIZE +         \
     ASF_PAYLOAD_OFFSET_INTO_MEDIA_OBJECT_FIELD_SIZE +    \
     ASF_PAYLOAD_REPLICATED_DATA_LENGTH_FIELD_SIZE +      \
     ASF_PAYLOAD_REPLICATED_DATA_LENGTH)

Definition at line 165 of file asfenc.c.

Referenced by put_frame().

PAYLOAD_HEADER_SIZE_MULTIPLE_PAYLOADS

#define PAYLOAD_HEADER_SIZE_MULTIPLE_PAYLOADS

Value:

    (1 +        /* Stream Number */                       \
     ASF_PAYLOAD_MEDIA_OBJECT_NUMBER_FIELD_SIZE +         \
     ASF_PAYLOAD_OFFSET_INTO_MEDIA_OBJECT_FIELD_SIZE +    \
     ASF_PAYLOAD_REPLICATED_DATA_LENGTH_FIELD_SIZE +      \
     ASF_PAYLOAD_REPLICATED_DATA_LENGTH +                 \
     ASF_PAYLOAD_LENGTH_FIELD_SIZE)

Definition at line 172 of file asfenc.c.

Referenced by put_frame().

SINGLE_PAYLOAD_HEADERS

#define SINGLE_PAYLOAD_HEADERS

Value:

    (PACKET_HEADER_MIN_SIZE +                             \
     PAYLOAD_HEADER_SIZE_SINGLE_PAYLOAD)

Definition at line 180 of file asfenc.c.

Referenced by put_frame().

MULTI_PAYLOAD_HEADERS

#define MULTI_PAYLOAD_HEADERS

Value:

    (PACKET_HEADER_MIN_SIZE +                             \
     1 +         /* Payload Flags */                      \
     2 * PAYLOAD_HEADER_SIZE_MULTIPLE_PAYLOADS)

Definition at line 184 of file asfenc.c.

Referenced by put_frame().

DATA_HEADER_SIZE

#define DATA_HEADER_SIZE   50

Definition at line 189 of file asfenc.c.

Referenced by asf_write_header(), asf_write_header1(), and get_send_time().

PACKET_SIZE_MAX

#define PACKET_SIZE_MAX   65536

Definition at line 191 of file asfenc.c.

PACKET_SIZE_MIN

#define PACKET_SIZE_MIN   100

Definition at line 192 of file asfenc.c.

PREROLL_TIME

#define PREROLL_TIME   3100

Definition at line 245 of file asfenc.c.

Referenced by asf_write_header1(), asf_write_markers(), asf_write_packet(), and put_frame().

Function Documentation

put_str16()

static void put_str16 ( AVIOContext * s, AVIOContext * dyn_buf, const char * tag )

static

Definition at line 247 of file asfenc.c.

Referenced by asf_write_header1().

put_header()

static int64_t put_header ( AVIOContext * pb, const ff_asf_guid * g )

static

Definition at line 259 of file asfenc.c.

Referenced by asf_write_header1(), and asf_write_markers().

end_header()

static void end_header ( AVIOContext * pb, int64_t pos )

static

Definition at line 270 of file asfenc.c.

Referenced by asf_write_header1(), and asf_write_markers().

put_chunk()

static void put_chunk ( AVFormatContext * s, int type, int payload_length, int flags )

static

Definition at line 281 of file asfenc.c.

Referenced by asf_write_header1(), asf_write_trailer(), and flush_packet().

get_send_time()

static int32_t get_send_time ( ASFContext * asf, int64_t pres_time, uint64_t * offset )

static

Definition at line 297 of file asfenc.c.

Referenced by asf_write_markers().

asf_write_markers()

static void asf_write_markers ( AVFormatContext * s, AVIOContext * dyn_buf )

static

Definition at line 311 of file asfenc.c.

Referenced by asf_write_header1().

asf_write_header1()

static int asf_write_header1 ( AVFormatContext * s, int64_t file_size, int64_t data_chunk_size )

static

Definition at line 350 of file asfenc.c.

Referenced by asf_write_header(), and asf_write_trailer().

asf_write_header()

static int asf_write_header ( AVFormatContext * s )

static

Definition at line 738 of file asfenc.c.

Referenced by asf_write_stream_header().

asf_write_stream_header()

static int asf_write_stream_header ( AVFormatContext * s )

static

Definition at line 775 of file asfenc.c.

put_payload_parsing_info()

static int put_payload_parsing_info ( AVFormatContext * s, unsigned sendtime, unsigned duration, int nb_payloads, int padsize )

static

Definition at line 784 of file asfenc.c.

Referenced by flush_packet().

flush_packet()

static void flush_packet ( AVFormatContext * s )

static

Definition at line 831 of file asfenc.c.

Referenced by asf_write_trailer(), and put_frame().

put_payload_header()

static void put_payload_header ( AVFormatContext * s, ASFStream * stream, int64_t presentation_time, int m_obj_size, int m_obj_offset, int payload_len, int flags )

static

Definition at line 862 of file asfenc.c.

Referenced by put_frame().

put_frame()

static void put_frame ( AVFormatContext * s, ASFStream * stream, AVStream * avst, int64_t timestamp, const uint8_t * buf, int m_obj_size, int flags )

static

Definition at line 893 of file asfenc.c.

Referenced by asf_write_packet().

update_index()

static int update_index ( AVFormatContext * s, int start_sec, uint32_t packet_number, uint16_t packet_count, uint64_t packet_offset )

static

Definition at line 964 of file asfenc.c.

Referenced by asf_write_packet(), and asf_write_trailer().

asf_write_packet()

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

static

Definition at line 1004 of file asfenc.c.

asf_write_index()

static int asf_write_index ( AVFormatContext * s, const ASFIndex * index, uint16_t max, uint32_t count )

static

Definition at line 1052 of file asfenc.c.

Referenced by asf_write_trailer().

asf_write_trailer()

static int asf_write_trailer ( AVFormatContext * s )

static

Definition at line 1071 of file asfenc.c.

asf_deinit()

static void asf_deinit ( AVFormatContext * s )

static

Definition at line 1101 of file asfenc.c.

Variable Documentation

codec_asf_bmp_tags

const AVCodecTag codec_asf_bmp_tags[]

static

Initial value:

= {
    { AV_CODEC_ID_MPEG4,     MKTAG('M', '4', 'S', '2') },
    { AV_CODEC_ID_MPEG4,     MKTAG('M', 'P', '4', 'S') },
    { AV_CODEC_ID_MSMPEG4V3, MKTAG('M', 'P', '4', '3') },
    { AV_CODEC_ID_NONE,      0 },
}

Definition at line 234 of file asfenc.c.

asf_codec_tags

const AVCodecTag* const asf_codec_tags[]

static

Initial value:

= {
        codec_asf_bmp_tags, ff_codec_bmp_tags, ff_codec_wav_tags, NULL
}

Definition at line 241 of file asfenc.c.

asf_options

const AVOption asf_options[]

static

Initial value:

= {
    { "packet_size", "Packet size",  0x42 , AV_OPT_TYPE_INT, {.i64 = 3200}, PACKET_SIZE_MIN, PACKET_SIZE_MAX, AV_OPT_FLAG_ENCODING_PARAM },
    { NULL },
}

Definition at line 1108 of file asfenc.c.

asf_muxer_class

const AVClass asf_muxer_class

static

Initial value:

= {
    .class_name     = "ASF (stream) muxer",
    .item_name      = av_default_item_name,
    .option         = asf_options,
    .version        = LIBAVUTIL_VERSION_INT,
}

Definition at line 1113 of file asfenc.c.