FFmpeg
Data Structures | Macros | Enumerations | Functions | Variables
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 << 1)
 
#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 411 of file concatdec.c.

◆ NEEDS_UNSAFE

#define NEEDS_UNSAFE   (1 << 1)

Definition at line 412 of file concatdec.c.

◆ NEEDS_FILE

#define NEEDS_FILE   (1 << 1)

Definition at line 413 of file concatdec.c.

◆ NEEDS_STREAM

#define NEEDS_STREAM   (1 << 2)

Definition at line 414 of file concatdec.c.

◆ OFFSET

#define OFFSET (   x)    offsetof(ConcatContext, x)

Definition at line 923 of file concatdec.c.

◆ DEC

#define DEC   AV_OPT_FLAG_DECODING_PARAM

Definition at line 924 of file concatdec.c.

Enumeration Type Documentation

◆ ConcatMatchMode

Enumerator
MATCH_ONE_TO_ONE 
MATCH_EXACT_ID 

Definition at line 34 of file concatdec.c.

◆ 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 422 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 197 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 239 of file concatdec.c.

Referenced by match_streams().

◆ match_streams_exact_id()

static int match_streams_exact_id ( AVFormatContext avf)
static

Definition at line 259 of file concatdec.c.

Referenced by match_streams().

◆ match_streams()

static int match_streams ( AVFormatContext avf)
static

Definition at line 281 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 318 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 331 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 390 of file concatdec.c.

◆ concat_parse_script()

static int concat_parse_script ( AVFormatContext avf)
static

Definition at line 456 of file concatdec.c.

Referenced by concat_read_header().

◆ concat_read_header()

static int concat_read_header ( AVFormatContext avf)
static

Definition at line 645 of file concatdec.c.

◆ open_next_file()

static int open_next_file ( AVFormatContext avf)
static

Definition at line 686 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 700 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 725 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 734 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 818 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 828 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 846 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 896 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 439 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 926 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,
}

Definition at line 936 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_seek2 = concat_seek,
.priv_class = &concat_class,
}

Definition at line 944 of file concatdec.c.

DIR_FPMETA
@ DIR_FPMETA
Definition: concatdec.c:428
OFFSET
#define OFFSET(x)
Definition: concatdec.c:923
FF_FMT_INIT_CLEANUP
#define FF_FMT_INIT_CLEANUP
For an AVInputFormat with this flag set read_close() needs to be called by the caller upon read_heade...
Definition: internal.h:48
NEEDS_FILE
#define NEEDS_FILE
Definition: concatdec.c:413
DIR_FFCONCAT
@ DIR_FFCONCAT
Definition: concatdec.c:423
concat_probe
static int concat_probe(const AVProbeData *probe)
Definition: concatdec.c:74
DIR_OPTION
@ DIR_OPTION
Definition: concatdec.c:430
concat_read_header
static int concat_read_header(AVFormatContext *avf)
Definition: concatdec.c:645
read_close
static av_cold int read_close(AVFormatContext *ctx)
Definition: libcdio.c:141
concat_read_packet
static int concat_read_packet(AVFormatContext *avf, AVPacket *pkt)
Definition: concatdec.c:734
DIR_FPMETAS
@ DIR_FPMETAS
Definition: concatdec.c:429
NEEDS_UNSAFE
#define NEEDS_UNSAFE
Definition: concatdec.c:412
options
static const AVOption options[]
Definition: concatdec.c:926
LIBAVUTIL_VERSION_INT
#define LIBAVUTIL_VERSION_INT
Definition: version.h:85
read_header
static int read_header(FFV1Context *f)
Definition: ffv1dec.c:527
NULL
#define NULL
Definition: coverity.c:32
read_probe
static int read_probe(const AVProbeData *pd)
Definition: jvdec.c:55
av_default_item_name
const char * av_default_item_name(void *ptr)
Return the context name.
Definition: log.c:235
DIR_STEDATA
@ DIR_STEDATA
Definition: concatdec.c:435
DIR_EXSID
@ DIR_EXSID
Definition: concatdec.c:432
NEEDS_STREAM
#define NEEDS_STREAM
Definition: concatdec.c:414
NULL_IF_CONFIG_SMALL
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
Definition: internal.h:117
DIR_OUTPOINT
@ DIR_OUTPOINT
Definition: concatdec.c:427
DIR_STMETA
@ DIR_STMETA
Definition: concatdec.c:433
concat_class
static const AVClass concat_class
Definition: concatdec.c:936
DIR_DURATION
@ DIR_DURATION
Definition: concatdec.c:425
ConcatContext
Definition: avf_concat.c:37
read_packet
static int read_packet(void *opaque, uint8_t *buf, int buf_size)
Definition: avio_reading.c:42
DIR_FILE
@ DIR_FILE
Definition: concatdec.c:424
DEC
#define DEC
Definition: concatdec.c:924
DIR_INPOINT
@ DIR_INPOINT
Definition: concatdec.c:426
DIR_STREAM
@ DIR_STREAM
Definition: concatdec.c:431
AV_OPT_TYPE_BOOL
@ AV_OPT_TYPE_BOOL
Definition: opt.h:241
concat_seek
static int concat_seek(AVFormatContext *avf, int stream, int64_t min_ts, int64_t ts, int64_t max_ts, int flags)
Definition: concatdec.c:896
DIR_CHAPTER
@ DIR_CHAPTER
Definition: concatdec.c:436
concat_read_close
static int concat_read_close(AVFormatContext *avf)
Definition: concatdec.c:390
DIR_STCODEC
@ DIR_STCODEC
Definition: concatdec.c:434