concatdec.c File Reference

#include "libavutil/avstring.h"
#include "libavutil/avassert.h"
#include "libavutil/bprint.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/opt.h"
#include "libavutil/parseutils.h"
#include "libavutil/timestamp.h"
#include "libavcodec/bsf.h"
#include "avformat.h"
#include "avio_internal.h"
#include "internal.h"
#include "url.h"

Go to the source code of this file.

Data Structures
struct	ConcatStream
struct	ConcatFile
struct	ConcatContext
struct	ParseSyntax

Macros
#define	FAIL(retcode)   do { ret = (retcode); goto fail; } while(0)
#define	MAX_ARGS   3
#define	NEEDS_UNSAFE   (1 << 0)
#define	NEEDS_FILE   (1 << 1)
#define	NEEDS_STREAM   (1 << 2)
#define	OFFSET(x)   offsetof(ConcatContext, x)
#define	DEC   AV_OPT_FLAG_DECODING_PARAM

Enumerations
enum	ConcatMatchMode { MATCH_ONE_TO_ONE, MATCH_EXACT_ID }
enum	ParseDirective {   DIR_FFCONCAT, DIR_FILE, DIR_DURATION, DIR_INPOINT,   DIR_OUTPOINT, DIR_FPMETA, DIR_FPMETAS, DIR_OPTION,   DIR_STREAM, DIR_EXSID, DIR_STMETA, DIR_STCODEC,   DIR_STEDATA, DIR_CHAPTER }

Functions
static int	concat_probe (const AVProbeData *probe)
static char *	get_keyword (uint8_t **cursor)
static int	safe_filename (const char *f)
static int	add_file (AVFormatContext *avf, char *filename, ConcatFile **rfile, unsigned *nb_files_alloc)
static int	copy_stream_props (AVStream *st, AVStream *source_st)
static int	detect_stream_specific (AVFormatContext *avf, int idx)
static int	match_streams_one_to_one (AVFormatContext *avf)
static int	match_streams_exact_id (AVFormatContext *avf)
static int	match_streams (AVFormatContext *avf)
static int64_t	get_best_effort_duration (ConcatFile *file, AVFormatContext *avf)
static int	open_file (AVFormatContext *avf, unsigned fileno)
static int	concat_read_close (AVFormatContext *avf)
static int	concat_parse_script (AVFormatContext *avf)
static int	concat_read_header (AVFormatContext *avf)
static int	open_next_file (AVFormatContext *avf)
static int	filter_packet (AVFormatContext *avf, ConcatStream *cs, AVPacket *pkt)
static int	packet_after_outpoint (ConcatContext *cat, AVPacket *pkt)
static int	concat_read_packet (AVFormatContext *avf, AVPacket *pkt)
static void	rescale_interval (AVRational tb_in, AVRational tb_out, int64_t *min_ts, int64_t *ts, int64_t *max_ts)
static int	try_seek (AVFormatContext *avf, int stream, int64_t min_ts, int64_t ts, int64_t max_ts, int flags)
static int	real_seek (AVFormatContext *avf, int stream, int64_t min_ts, int64_t ts, int64_t max_ts, int flags, AVFormatContext *cur_avf)
static int	concat_seek (AVFormatContext *avf, int stream, int64_t min_ts, int64_t ts, int64_t max_ts, int flags)

Variables
static const ParseSyntax	syntax []
static const AVOption	options []
static const AVClass	concat_class
const AVInputFormat	ff_concat_demuxer

Macro Definition Documentation

FAIL

#define FAIL

(

retcode

)

do { ret = (retcode); goto fail; } while(0)

Definition at line 110 of file concatdec.c.

MAX_ARGS

#define MAX_ARGS   3

Definition at line 412 of file concatdec.c.

NEEDS_UNSAFE

#define NEEDS_UNSAFE   (1 << 0)

Definition at line 413 of file concatdec.c.

NEEDS_FILE

#define NEEDS_FILE   (1 << 1)

Definition at line 414 of file concatdec.c.

NEEDS_STREAM

#define NEEDS_STREAM   (1 << 2)

Definition at line 415 of file concatdec.c.

OFFSET

#define OFFSET

(

x

)

offsetof(ConcatContext, x)

Definition at line 924 of file concatdec.c.

DEC

#define DEC   AV_OPT_FLAG_DECODING_PARAM

Definition at line 925 of file concatdec.c.

Enumeration Type Documentation

ConcatMatchMode

enum ConcatMatchMode

Enumerator
MATCH_ONE_TO_ONE
MATCH_EXACT_ID

Definition at line 34 of file concatdec.c.

ParseDirective

enum ParseDirective

Enumerator
DIR_FFCONCAT
DIR_FILE
DIR_DURATION
DIR_INPOINT
DIR_OUTPOINT
DIR_FPMETA
DIR_FPMETAS
DIR_OPTION
DIR_STREAM
DIR_EXSID
DIR_STMETA
DIR_STCODEC
DIR_STEDATA
DIR_CHAPTER

Definition at line 423 of file concatdec.c.

Function Documentation

concat_probe()

static int concat_probe ( const AVProbeData *  probe )

static

Definition at line 74 of file concatdec.c.

get_keyword()

static char* get_keyword ( uint8_t **  cursor )

static

Definition at line 80 of file concatdec.c.

Referenced by concat_parse_script().

safe_filename()

static int safe_filename ( const char *  f )

static

Definition at line 91 of file concatdec.c.

Referenced by add_file().

add_file()

static int add_file ( AVFormatContext *  avf, char *  filename, ConcatFile **  rfile, unsigned *  nb_files_alloc  )

static

Definition at line 112 of file concatdec.c.

Referenced by concat_parse_script().

copy_stream_props()

static int copy_stream_props ( AVStream *  st, AVStream *  source_st  )

static

Definition at line 171 of file concatdec.c.

Referenced by match_streams_exact_id(), and match_streams_one_to_one().

detect_stream_specific()

static int detect_stream_specific ( AVFormatContext *  avf, int  idx  )

static

Definition at line 198 of file concatdec.c.

Referenced by match_streams().

match_streams_one_to_one()

static int match_streams_one_to_one ( AVFormatContext *  avf )

static

Definition at line 240 of file concatdec.c.

Referenced by match_streams().

match_streams_exact_id()

static int match_streams_exact_id ( AVFormatContext *  avf )

static

Definition at line 260 of file concatdec.c.

Referenced by match_streams().

match_streams()

static int match_streams ( AVFormatContext *  avf )

static

Definition at line 282 of file concatdec.c.

Referenced by concat_read_packet(), and open_file().

get_best_effort_duration()

static int64_t get_best_effort_duration ( ConcatFile *  file, AVFormatContext *  avf  )

static

Definition at line 319 of file concatdec.c.

Referenced by open_file(), and open_next_file().

open_file()

static int open_file ( AVFormatContext *  avf, unsigned  fileno  )

static

Definition at line 332 of file concatdec.c.

Referenced by concat_read_header(), open_next_file(), and real_seek().

concat_read_close()

static int concat_read_close ( AVFormatContext *  avf )

static

Definition at line 391 of file concatdec.c.

concat_parse_script()

static int concat_parse_script ( AVFormatContext *  avf )

static

Definition at line 457 of file concatdec.c.

Referenced by concat_read_header().

concat_read_header()

static int concat_read_header ( AVFormatContext *  avf )

static

Definition at line 646 of file concatdec.c.

open_next_file()

static int open_next_file ( AVFormatContext *  avf )

static

Definition at line 687 of file concatdec.c.

Referenced by concat_read_packet().

filter_packet()

static int filter_packet ( AVFormatContext *  avf, ConcatStream *  cs, AVPacket *  pkt  )

static

Definition at line 701 of file concatdec.c.

Referenced by concat_read_packet().

packet_after_outpoint()

static int packet_after_outpoint ( ConcatContext *  cat, AVPacket *  pkt  )

static

Definition at line 726 of file concatdec.c.

Referenced by concat_read_packet().

concat_read_packet()

static int concat_read_packet ( AVFormatContext *  avf, AVPacket *  pkt  )

static

Definition at line 735 of file concatdec.c.

rescale_interval()

static void rescale_interval ( AVRational  tb_in, AVRational  tb_out, int64_t *  min_ts, int64_t *  ts, int64_t *  max_ts  )

static

Definition at line 819 of file concatdec.c.

Referenced by real_seek(), and try_seek().

try_seek()

static int try_seek ( AVFormatContext *  avf, int  stream, int64_t  min_ts, int64_t  ts, int64_t  max_ts, int  flags  )

static

Definition at line 829 of file concatdec.c.

Referenced by real_seek().

real_seek()

static int real_seek ( AVFormatContext *  avf, int  stream, int64_t  min_ts, int64_t  ts, int64_t  max_ts, int  flags, AVFormatContext *  cur_avf  )

static

Definition at line 847 of file concatdec.c.

Referenced by concat_seek().

concat_seek()

static int concat_seek ( AVFormatContext *  avf, int  stream, int64_t  min_ts, int64_t  ts, int64_t  max_ts, int  flags  )

static

Definition at line 897 of file concatdec.c.

Variable Documentation

syntax

const ParseSyntax syntax[]

static

Initial value:

= {
    [DIR_FFCONCAT ] = { "ffconcat",             "kk",   0 },
    [DIR_FILE     ] = { "file",                 "s",    0 },
    [DIR_DURATION ] = { "duration",             "d",    NEEDS_FILE },
    [DIR_INPOINT  ] = { "inpoint",              "d",    NEEDS_FILE },
    [DIR_OUTPOINT ] = { "outpoint",             "d",    NEEDS_FILE },
    [DIR_FPMETA   ] = { "file_packet_meta",     "ks",   NEEDS_FILE },
    [DIR_FPMETAS  ] = { "file_packet_metadata", "s",    NEEDS_FILE },
    [DIR_OPTION   ] = { "option",               "ks",   NEEDS_FILE | NEEDS_UNSAFE },
    [DIR_STREAM   ] = { "stream",               "",     0 },
    [DIR_EXSID    ] = { "exact_stream_id",      "i",    NEEDS_STREAM },
    [DIR_STMETA   ] = { "stream_meta",          "ks",   NEEDS_STREAM },
    [DIR_STCODEC  ] = { "stream_codec",         "k",    NEEDS_STREAM },
    [DIR_STEDATA  ] = { "stream_extradata",     "k",    NEEDS_STREAM },
    [DIR_CHAPTER  ] = { "chapter",              "idd",  0 },
}

Definition at line 440 of file concatdec.c.

Referenced by concat_parse_script().

options

const AVOption options[]

static

Initial value:

= {
    { "safe", "enable safe mode",
      OFFSET(safe), AV_OPT_TYPE_BOOL, {.i64 = 1}, 0, 1, DEC },
    { "auto_convert", "automatically convert bitstream format",
      OFFSET(auto_convert), AV_OPT_TYPE_BOOL, {.i64 = 1}, 0, 1, DEC },
    { "segment_time_metadata", "output file segment start time and duration as packet metadata",
      OFFSET(segment_time_metadata), AV_OPT_TYPE_BOOL, {.i64 = 0}, 0, 1, DEC },
    { NULL }
}

Definition at line 927 of file concatdec.c.

Referenced by open_file().

concat_class

const AVClass concat_class

static

Initial value:

= {
    .class_name = "concat demuxer",
    .item_name  = av_default_item_name,
    .option     = options,
    .version    = LIBAVUTIL_VERSION_INT,
}

Definition at line 937 of file concatdec.c.

ff_concat_demuxer

const AVInputFormat ff_concat_demuxer

Initial value:

= {
    .name           = "concat",
    .long_name      = NULL_IF_CONFIG_SMALL("Virtual concatenation script"),
    .priv_data_size = sizeof(ConcatContext),
    .flags_internal = FF_FMT_INIT_CLEANUP,
    .read_probe     = concat_probe,
    .read_header    = concat_read_header,
    .read_packet    = concat_read_packet,
    .read_close     = concat_read_close,
    .read_seek2     = concat_seek,
    .priv_class     = &concat_class,
}

Definition at line 945 of file concatdec.c.