flvdec.c File Reference

#include "libavutil/avstring.h"
#include "libavutil/channel_layout.h"
#include "libavutil/dict.h"
#include "libavutil/opt.h"
#include "libavutil/intfloat.h"
#include "libavutil/mathematics.h"
#include "libavcodec/bytestream.h"
#include "libavcodec/mpeg4audio.h"
#include "avformat.h"
#include "internal.h"
#include "avio_internal.h"
#include "flv.h"

Go to the source code of this file.

Data Structures
struct	FLVContext

Macros
#define	KEYFRAMES_TAG   "keyframes"
#define	KEYFRAMES_TIMESTAMP_TAG   "times"
#define	KEYFRAMES_BYTEOFFSET_TAG   "filepositions"
#define	VALIDATE_INDEX_TS_THRESH   2500
#define	OFFSET(x)   offsetof(FLVContext, x)
#define	VD   AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM

Functions
static int	flv_probe (AVProbeData *p)
static AVStream *	create_stream (AVFormatContext *s, int codec_type)
static int	flv_same_audio_codec (AVCodecContext *acodec, int flags)
static void	flv_set_audio_codec (AVFormatContext *s, AVStream *astream, AVCodecContext *acodec, int flv_codecid)
static int	flv_same_video_codec (AVCodecContext *vcodec, int flags)
static int	flv_set_video_codec (AVFormatContext *s, AVStream *vstream, int flv_codecid, int read)
static int	amf_get_string (AVIOContext *ioc, char *buffer, int buffsize)
static int	parse_keyframes_index (AVFormatContext *s, AVIOContext *ioc, AVStream *vstream, int64_t max_pos)
static int	amf_parse_object (AVFormatContext *s, AVStream *astream, AVStream *vstream, const char *key, int64_t max_pos, int depth)
static int	flv_read_metabody (AVFormatContext *s, int64_t next_pos)
static int	flv_read_header (AVFormatContext *s)
static int	flv_read_close (AVFormatContext *s)
static int	flv_get_extradata (AVFormatContext *s, AVStream *st, int size)
static int	flv_queue_extradata (FLVContext *flv, AVIOContext *pb, int stream, int size)
static void	clear_index_entries (AVFormatContext *s, int64_t pos)
static int	amf_skip_tag (AVIOContext *pb, AMFDataType type)
static int	flv_data_packet (AVFormatContext *s, AVPacket *pkt, int64_t dts, int64_t next)
static int	flv_read_packet (AVFormatContext *s, AVPacket *pkt)
static int	flv_read_seek (AVFormatContext *s, int stream_index, int64_t ts, int flags)

Variables
static const AVOption	options []
class {
class_name = "flvdec"
item_name = av_default_item_name
option = options
version = LIBAVUTIL_VERSION_INT
};
AVInputFormat	ff_flv_demuxer

Macro Definition Documentation

#define KEYFRAMES_TAG   "keyframes"

Definition at line 40 of file flvdec.c.

Referenced by amf_parse_object().

#define KEYFRAMES_TIMESTAMP_TAG   "times"

Definition at line 41 of file flvdec.c.

Referenced by parse_keyframes_index().

#define KEYFRAMES_BYTEOFFSET_TAG   "filepositions"

Definition at line 42 of file flvdec.c.

Referenced by parse_keyframes_index().

#define VALIDATE_INDEX_TS_THRESH   2500

Definition at line 44 of file flvdec.c.

Referenced by flv_read_packet().

#define OFFSET

(

x

)

offsetof(FLVContext, x)

Definition at line 985 of file flvdec.c.

#define VD   AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM

Definition at line 986 of file flvdec.c.

Function Documentation

static int flv_probe ( AVProbeData *  p )

static

Definition at line 62 of file flvdec.c.

static AVStream* create_stream ( AVFormatContext *  s, int  codec_type  )

static

Definition at line 77 of file flvdec.c.

Referenced by amf_parse_object(), flv_data_packet(), flv_read_header(), and flv_read_packet().

static int flv_same_audio_codec ( AVCodecContext *  acodec, int  flags  )

static

Definition at line 87 of file flvdec.c.

Referenced by flv_read_packet().

static void flv_set_audio_codec ( AVFormatContext *  s, AVStream *  astream, AVCodecContext *  acodec, int  flv_codecid  )

static

Definition at line 138 of file flvdec.c.

Referenced by amf_parse_object(), and flv_read_packet().

static int flv_same_video_codec ( AVCodecContext *  vcodec, int  flags  )

static

Definition at line 198 of file flvdec.c.

Referenced by flv_read_packet().

static int flv_set_video_codec ( AVFormatContext *  s, AVStream *  vstream, int  flv_codecid, int  read  )

static

Definition at line 223 of file flvdec.c.

Referenced by amf_parse_object(), and flv_read_packet().

static int amf_get_string ( AVIOContext *  ioc, char *  buffer, int  buffsize  )

static

Definition at line 265 of file flvdec.c.

Referenced by amf_parse_object(), flv_data_packet(), flv_read_metabody(), and parse_keyframes_index().

static int parse_keyframes_index ( AVFormatContext *  s, AVIOContext *  ioc, AVStream *  vstream, int64_t  max_pos  )

static

Definition at line 280 of file flvdec.c.

Referenced by amf_parse_object().

static int amf_parse_object ( AVFormatContext *  s, AVStream *  astream, AVStream *  vstream, const char *  key, int64_t  max_pos, int  depth  )

static

Definition at line 366 of file flvdec.c.

Referenced by flv_read_metabody().

static int flv_read_metabody ( AVFormatContext *  s, int64_t  next_pos  )

static

Definition at line 516 of file flvdec.c.

Referenced by flv_read_packet().

static int flv_read_header ( AVFormatContext *  s )

static

Definition at line 559 of file flvdec.c.

static int flv_read_close ( AVFormatContext *  s )

static

Definition at line 584 of file flvdec.c.

static int flv_get_extradata ( AVFormatContext *  s, AVStream *  st, int  size  )

static

Definition at line 592 of file flvdec.c.

Referenced by flv_read_packet().

static int flv_queue_extradata ( FLVContext *  flv, AVIOContext *  pb, int  stream, int  size  )

static

Definition at line 603 of file flvdec.c.

Referenced by flv_read_packet().

static void clear_index_entries ( AVFormatContext *  s, int64_t  pos  )

static

Definition at line 616 of file flvdec.c.

Referenced by flv_read_packet().

static int amf_skip_tag ( AVIOContext *  pb, AMFDataType  type  )

static

Definition at line 632 of file flvdec.c.

Referenced by flv_data_packet().

static int flv_data_packet ( AVFormatContext *  s, AVPacket *  pkt, int64_t  dts, int64_t  next  )

static

Definition at line 673 of file flvdec.c.

Referenced by flv_read_packet().

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

static

Definition at line 737 of file flvdec.c.

static int flv_read_seek ( AVFormatContext *  s, int  stream_index, int64_t  ts, int  flags  )

static

Definition at line 977 of file flvdec.c.

Variable Documentation

const AVOption options[]

static

Initial value:

= {
    { "flv_metadata", "Allocate streams according to the onMetaData array", OFFSET(trust_metadata), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, VD },
    { NULL }
}

Definition at line 987 of file flvdec.c.

class_name = "flvdec"

Definition at line 993 of file flvdec.c.

item_name = av_default_item_name

Definition at line 994 of file flvdec.c.

option = options

Definition at line 995 of file flvdec.c.

version = LIBAVUTIL_VERSION_INT

Definition at line 996 of file flvdec.c.

const { ... }

AVInputFormat ff_flv_demuxer

Initial value:

= {
    .name           = "flv",
    .long_name      = NULL_IF_CONFIG_SMALL("FLV (Flash Video)"),
    .priv_data_size = sizeof(FLVContext),
    .read_probe     = flv_probe,
    .read_header    = flv_read_header,
    .read_packet    = flv_read_packet,
    .read_seek      = flv_read_seek,
    .read_close     = flv_read_close,
    .extensions     = "flv",
    .priv_class     = &class,
}

Definition at line 999 of file flvdec.c.