flvenc.c File Reference

#include "libavutil/intreadwrite.h"
#include "libavutil/dict.h"
#include "libavutil/intfloat.h"
#include "libavutil/avassert.h"
#include "libavutil/mathematics.h"
#include "avc.h"
#include "avformat.h"
#include "flv.h"
#include "internal.h"
#include "metadata.h"
#include "libavutil/opt.h"
#include "libavcodec/put_bits.h"
#include "libavcodec/aacenctab.h"

Go to the source code of this file.

Data Structures
struct	FLVContext
struct	FLVStreamContext

Enumerations
enum	FLVFlags { FLV_AAC_SEQ_HEADER_DETECT = (1 << 0), FLV_NO_SEQUENCE_END = (1 << 1) }

Functions
static int	get_audio_flags (AVFormatContext *s, AVCodecParameters *par)
static void	put_amf_string (AVIOContext *pb, const char *str)
static void	put_avc_eos_tag (AVIOContext *pb, unsigned ts)
static void	put_amf_double (AVIOContext *pb, double d)
static void	put_amf_bool (AVIOContext *pb, int b)
static void	write_metadata (AVFormatContext *s, unsigned int ts)
static int	unsupported_codec (AVFormatContext *s, const char *type, int codec_id)
static void	flv_write_codec_header (AVFormatContext *s, AVCodecParameters *par)
static int	flv_write_header (AVFormatContext *s)
static int	flv_write_trailer (AVFormatContext *s)
static int	flv_write_packet (AVFormatContext *s, AVPacket *pkt)

Variables
static const AVCodecTag	flv_video_codec_ids []
static const AVCodecTag	flv_audio_codec_ids []
static const AVOption	options []
static const AVClass	flv_muxer_class
AVOutputFormat	ff_flv_muxer

Enumeration Type Documentation

enum FLVFlags

Enumerator
FLV_AAC_SEQ_HEADER_DETECT
FLV_NO_SEQUENCE_END

Definition at line 64 of file flvenc.c.

Function Documentation

static int get_audio_flags ( AVFormatContext *  s, AVCodecParameters *  par  )

static

Definition at line 89 of file flvenc.c.

Referenced by flv_write_codec_header(), flv_write_header(), and flv_write_packet().

static void put_amf_string ( AVIOContext *  pb, const char *  str  )

static

Definition at line 179 of file flvenc.c.

Referenced by flv_write_packet(), and write_metadata().

static void put_avc_eos_tag ( AVIOContext *  pb, unsigned  ts  )

static

Definition at line 186 of file flvenc.c.

Referenced by flv_write_trailer().

static void put_amf_double ( AVIOContext *  pb, double  d  )

static

Definition at line 199 of file flvenc.c.

Referenced by flv_write_trailer(), and write_metadata().

static void put_amf_bool ( AVIOContext *  pb, int  b  )

static

Definition at line 205 of file flvenc.c.

Referenced by write_metadata().

static void write_metadata ( AVFormatContext *  s, unsigned int  ts  )

static

Definition at line 211 of file flvenc.c.

Referenced by flv_write_header(), and flv_write_packet().

static int unsupported_codec ( AVFormatContext *  s, const char *  type, int  codec_id  )

static

Definition at line 345 of file flvenc.c.

Referenced by flv_write_header().

static void flv_write_codec_header ( AVFormatContext *  s, AVCodecParameters *  par  )

static

Definition at line 356 of file flvenc.c.

Referenced by flv_write_header(), and flv_write_packet().

static int flv_write_header ( AVFormatContext *  s )

static

Definition at line 419 of file flvenc.c.

static int flv_write_trailer ( AVFormatContext *  s )

static

Definition at line 527 of file flvenc.c.

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

static

Definition at line 567 of file flvenc.c.

Variable Documentation

const AVCodecTag flv_video_codec_ids[]

static

Initial value:

= {
    { AV_CODEC_ID_FLV1,     FLV_CODECID_H263 },
    { AV_CODEC_ID_H263,     FLV_CODECID_REALH263 },
    { AV_CODEC_ID_MPEG4,    FLV_CODECID_MPEG4 },
    { AV_CODEC_ID_FLASHSV,  FLV_CODECID_SCREEN },
    { AV_CODEC_ID_FLASHSV2, FLV_CODECID_SCREEN2 },
    { AV_CODEC_ID_VP6F,     FLV_CODECID_VP6 },
    { AV_CODEC_ID_VP6,      FLV_CODECID_VP6 },
    { AV_CODEC_ID_VP6A,     FLV_CODECID_VP6A },
    { AV_CODEC_ID_H264,     FLV_CODECID_H264 },
    { AV_CODEC_ID_NONE,     0 }
}

Definition at line 37 of file flvenc.c.

const AVCodecTag flv_audio_codec_ids[]

static

Initial value:

= {
    { AV_CODEC_ID_MP3,        FLV_CODECID_MP3        >> FLV_AUDIO_CODECID_OFFSET },
    { AV_CODEC_ID_PCM_U8,     FLV_CODECID_PCM        >> FLV_AUDIO_CODECID_OFFSET },
    { AV_CODEC_ID_PCM_S16BE,  FLV_CODECID_PCM        >> FLV_AUDIO_CODECID_OFFSET },
    { AV_CODEC_ID_PCM_S16LE,  FLV_CODECID_PCM_LE     >> FLV_AUDIO_CODECID_OFFSET },
    { AV_CODEC_ID_ADPCM_SWF,  FLV_CODECID_ADPCM      >> FLV_AUDIO_CODECID_OFFSET },
    { AV_CODEC_ID_AAC,        FLV_CODECID_AAC        >> FLV_AUDIO_CODECID_OFFSET },
    { AV_CODEC_ID_NELLYMOSER, FLV_CODECID_NELLYMOSER >> FLV_AUDIO_CODECID_OFFSET },
    { AV_CODEC_ID_PCM_MULAW,  FLV_CODECID_PCM_MULAW  >> FLV_AUDIO_CODECID_OFFSET },
    { AV_CODEC_ID_PCM_ALAW,   FLV_CODECID_PCM_ALAW   >> FLV_AUDIO_CODECID_OFFSET },
    { AV_CODEC_ID_SPEEX,      FLV_CODECID_SPEEX      >> FLV_AUDIO_CODECID_OFFSET },
    { AV_CODEC_ID_NONE,       0 }
}

Definition at line 50 of file flvenc.c.

const AVOption options[]

static

Initial value:

= {
    { "flvflags", "FLV muxer flags", 0x42, AV_OPT_TYPE_FLAGS, {.i64 = 0}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "flvflags" },
    { "aac_seq_header_detect", "Put AAC sequence header based on stream data", 0, AV_OPT_TYPE_CONST, {.i64 = FLV_AAC_SEQ_HEADER_DETECT}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "flvflags" },
    { "no_sequence_end", "disable sequence end for FLV", 0, AV_OPT_TYPE_CONST, {.i64 = FLV_NO_SEQUENCE_END}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "flvflags" },
    { NULL },
}

Definition at line 735 of file flvenc.c.

const AVClass flv_muxer_class

static

Initial value:

= {
    .class_name = "flv muxer",
    .item_name  = av_default_item_name,
    .option     = options,
    .version    = LIBAVUTIL_VERSION_INT,
}

Definition at line 742 of file flvenc.c.

AVOutputFormat ff_flv_muxer

Initial value:

= {
    .name           = "flv",
    .long_name      = NULL_IF_CONFIG_SMALL("FLV (Flash Video)"),
    .mime_type      = "video/x-flv",
    .extensions     = "flv",
    .priv_data_size = sizeof(FLVContext),
    .audio_codec    = CONFIG_LIBMP3LAME ? AV_CODEC_ID_MP3 : AV_CODEC_ID_ADPCM_SWF,
    .video_codec    = AV_CODEC_ID_FLV1,
    .write_header   = flv_write_header,
    .write_packet   = flv_write_packet,
    .write_trailer  = flv_write_trailer,
    .codec_tag      = (const AVCodecTag* const []) {
                          flv_video_codec_ids, flv_audio_codec_ids, 0
                      },
    .flags          = AVFMT_GLOBALHEADER | AVFMT_VARIABLE_FPS |
                      AVFMT_TS_NONSTRICT,
    .priv_class     = &flv_muxer_class,
}

Definition at line 749 of file flvenc.c.