FFmpeg
Data Structures | Macros | Functions | Variables
latmenc.c File Reference
#include "libavcodec/get_bits.h"
#include "libavcodec/put_bits.h"
#include "libavcodec/codec_id.h"
#include "libavcodec/codec_par.h"
#include "libavcodec/packet.h"
#include "libavcodec/mpeg4audio.h"
#include "libavutil/opt.h"
#include "avformat.h"
#include "internal.h"
#include "rawenc.h"

Go to the source code of this file.

Data Structures

struct  LATMContext
 

Macros

#define MAX_EXTRADATA_SIZE   1024
 

Functions

static int latm_decode_extradata (AVFormatContext *s, uint8_t *buf, int size)
 
static int latm_write_header (AVFormatContext *s)
 
static void copy_bits (PutBitContext *pb, const uint8_t *src, int length)
 
static void latm_write_frame_header (AVFormatContext *s, PutBitContext *bs)
 
static int latm_write_packet (AVFormatContext *s, AVPacket *pkt)
 
static int latm_check_bitstream (struct AVFormatContext *s, const AVPacket *pkt)
 

Variables

static const AVOption options []
 
static const AVClass latm_muxer_class
 
const AVOutputFormat ff_latm_muxer
 

Macro Definition Documentation

◆ MAX_EXTRADATA_SIZE

#define MAX_EXTRADATA_SIZE   1024

Definition at line 33 of file latmenc.c.

Function Documentation

◆ latm_decode_extradata()

static int latm_decode_extradata ( AVFormatContext s,
uint8_t *  buf,
int  size 
)
static

Definition at line 58 of file latmenc.c.

Referenced by latm_write_header(), and latm_write_packet().

◆ latm_write_header()

static int latm_write_header ( AVFormatContext s)
static

Definition at line 88 of file latmenc.c.

◆ copy_bits()

static void copy_bits ( PutBitContext pb,
const uint8_t *  src,
int  length 
)
static

Definition at line 106 of file latmenc.c.

Referenced by latm_write_frame_header(), and latm_write_packet().

◆ latm_write_frame_header()

static void latm_write_frame_header ( AVFormatContext s,
PutBitContext bs 
)
static

Definition at line 117 of file latmenc.c.

Referenced by latm_write_packet().

◆ latm_write_packet()

static int latm_write_packet ( AVFormatContext s,
AVPacket pkt 
)
static

Definition at line 163 of file latmenc.c.

◆ latm_check_bitstream()

static int latm_check_bitstream ( struct AVFormatContext s,
const AVPacket pkt 
)
static

Definition at line 248 of file latmenc.c.

Variable Documentation

◆ options

const AVOption options[]
static
Initial value:
= {
{"smc-interval", "StreamMuxConfig interval.",
0x42, AV_OPT_TYPE_INT, {.i64 = 0x0014}, 0x0001, 0xffff, AV_OPT_FLAG_ENCODING_PARAM},
{NULL},
}

Definition at line 45 of file latmenc.c.

◆ latm_muxer_class

const AVClass latm_muxer_class
static
Initial value:
= {
.class_name = "LATM/LOAS muxer",
.item_name = av_default_item_name,
.option = options,
}

Definition at line 51 of file latmenc.c.

◆ ff_latm_muxer

const AVOutputFormat ff_latm_muxer
Initial value:
= {
.name = "latm",
.long_name = NULL_IF_CONFIG_SMALL("LOAS/LATM"),
.mime_type = "audio/MP4A-LATM",
.extensions = "latm,loas",
.priv_data_size = sizeof(LATMContext),
.audio_codec = AV_CODEC_ID_AAC,
.video_codec = AV_CODEC_ID_NONE,
.priv_class = &latm_muxer_class,
}

Definition at line 261 of file latmenc.c.

latm_check_bitstream
static int latm_check_bitstream(struct AVFormatContext *s, const AVPacket *pkt)
Definition: latmenc.c:248
latm_muxer_class
static const AVClass latm_muxer_class
Definition: latmenc.c:51
AVFMT_NOTIMESTAMPS
#define AVFMT_NOTIMESTAMPS
Format does not need / have any timestamps.
Definition: avformat.h:467
check_bitstream
static int check_bitstream(AVFormatContext *s, FFStream *sti, AVPacket *pkt)
Definition: mux.c:1067
AV_OPT_FLAG_ENCODING_PARAM
#define AV_OPT_FLAG_ENCODING_PARAM
a generic parameter which can be set by the user for muxing or encoding
Definition: opt.h:277
LIBAVUTIL_VERSION_INT
#define LIBAVUTIL_VERSION_INT
Definition: version.h:85
NULL
#define NULL
Definition: coverity.c:32
av_default_item_name
const char * av_default_item_name(void *ptr)
Return the context name.
Definition: log.c:235
AV_CODEC_ID_AAC
@ AV_CODEC_ID_AAC
Definition: codec_id.h:424
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
latm_write_packet
static int latm_write_packet(AVFormatContext *s, AVPacket *pkt)
Definition: latmenc.c:163
latm_write_header
static int latm_write_header(AVFormatContext *s)
Definition: latmenc.c:88
write_packet
static void write_packet(OutputFile *of, AVPacket *pkt, OutputStream *ost, int unqueue)
Definition: ffmpeg.c:731
LATMContext
Definition: aacdec.c:266
AV_CODEC_ID_NONE
@ AV_CODEC_ID_NONE
Definition: codec_id.h:48
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Definition: opt.h:224
flags
#define flags(name, subs,...)
Definition: cbs_av1.c:561
write_header
static void write_header(FFV1Context *f)
Definition: ffv1enc.c:347
options
static const AVOption options[]
Definition: latmenc.c:45