Libav
Macros | Functions | Variables
nutenc.c File Reference
#include <stdint.h>
#include "libavutil/intreadwrite.h"
#include "libavutil/mathematics.h"
#include "libavutil/tree.h"
#include "libavutil/dict.h"
#include "libavutil/time.h"
#include "libavutil/opt.h"
#include "libavcodec/mpegaudiodata.h"
#include "nut.h"
#include "internal.h"
#include "avio_internal.h"
#include "riff.h"

Go to the source code of this file.

Macros

#define OFFSET(x)   offsetof(NUTContext, x)
 
#define E   AV_OPT_FLAG_ENCODING_PARAM
 

Functions

static int find_expected_header (AVCodecParameters *p, int size, int key_frame, uint8_t out[64])
 
static int find_header_idx (AVFormatContext *s, AVCodecParameters *p, int size, int frame_type)
 
static void build_elision_headers (AVFormatContext *s)
 
static void build_frame_code (AVFormatContext *s)
 
static void put_tt (NUTContext *nut, AVRational *time_base, AVIOContext *bc, uint64_t val)
 
static void put_str (AVIOContext *bc, const char *string)
 Store a string as vb. More...
 
static void put_s (AVIOContext *bc, int64_t val)
 
static void put_packet (NUTContext *nut, AVIOContext *bc, AVIOContext *dyn_bc, int calculate_checksum, uint64_t startcode)
 
static void write_mainheader (NUTContext *nut, AVIOContext *bc)
 
static int write_streamheader (AVFormatContext *avctx, AVIOContext *bc, AVStream *st, int i)
 
static int add_info (AVIOContext *bc, const char *type, const char *value)
 
static int write_globalinfo (NUTContext *nut, AVIOContext *bc)
 
static int write_streaminfo (NUTContext *nut, AVIOContext *bc, int stream_id)
 
static int write_chapter (NUTContext *nut, AVIOContext *bc, int id)
 
static int write_headers (AVFormatContext *avctx, AVIOContext *bc)
 
static int nut_write_header (AVFormatContext *s)
 
static int get_needed_flags (NUTContext *nut, StreamContext *nus, FrameCode *fc, AVPacket *pkt)
 
static int find_best_header_idx (NUTContext *nut, AVPacket *pkt)
 
static int nut_write_packet (AVFormatContext *s, AVPacket *pkt)
 
static int nut_write_trailer (AVFormatContext *s)
 

Variables

static const AVOption options []
 
class {
      class_name = "nutenc"
 
      item_name = av_default_item_name
 
      option = options
 
      version = LIBAVUTIL_VERSION_INT
 
}; 
 
AVOutputFormat ff_nut_muxer
 

Macro Definition Documentation

◆ OFFSET

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

Definition at line 977 of file nutenc.c.

◆ E

Definition at line 978 of file nutenc.c.

Function Documentation

◆ find_expected_header()

static int find_expected_header ( AVCodecParameters p,
int  size,
int  key_frame,
uint8_t  out[64] 
)
static

Definition at line 36 of file nutenc.c.

Referenced by find_header_idx().

◆ find_header_idx()

static int find_header_idx ( AVFormatContext s,
AVCodecParameters p,
int  size,
int  frame_type 
)
static

Definition at line 106 of file nutenc.c.

Referenced by build_frame_code().

◆ build_elision_headers()

static void build_elision_headers ( AVFormatContext s)
static

Definition at line 123 of file nutenc.c.

Referenced by nut_write_header().

◆ build_frame_code()

static void build_frame_code ( AVFormatContext s)
static

Definition at line 145 of file nutenc.c.

Referenced by nut_write_header().

◆ put_tt()

static void put_tt ( NUTContext nut,
AVRational time_base,
AVIOContext bc,
uint64_t  val 
)
static

Definition at line 265 of file nutenc.c.

Referenced by nut_write_packet(), and write_chapter().

◆ put_str()

static void put_str ( AVIOContext bc,
const char *  string 
)
static

Store a string as vb.

Definition at line 275 of file nutenc.c.

Referenced by add_info().

◆ put_s()

static void put_s ( AVIOContext bc,
int64_t  val 
)
static

Definition at line 283 of file nutenc.c.

Referenced by add_info(), write_chapter(), and write_mainheader().

◆ put_packet()

static void put_packet ( NUTContext nut,
AVIOContext bc,
AVIOContext dyn_bc,
int  calculate_checksum,
uint64_t  startcode 
)
static

Definition at line 309 of file nutenc.c.

Referenced by nut_write_packet(), and write_headers().

◆ write_mainheader()

static void write_mainheader ( NUTContext nut,
AVIOContext bc 
)
static

Definition at line 332 of file nutenc.c.

Referenced by write_headers().

◆ write_streamheader()

static int write_streamheader ( AVFormatContext avctx,
AVIOContext bc,
AVStream st,
int  i 
)
static

Definition at line 423 of file nutenc.c.

Referenced by write_headers().

◆ add_info()

static int add_info ( AVIOContext bc,
const char *  type,
const char *  value 
)
static

Definition at line 494 of file nutenc.c.

Referenced by write_chapter(), write_globalinfo(), and write_streaminfo().

◆ write_globalinfo()

static int write_globalinfo ( NUTContext nut,
AVIOContext bc 
)
static

Definition at line 502 of file nutenc.c.

Referenced by write_headers().

◆ write_streaminfo()

static int write_streaminfo ( NUTContext nut,
AVIOContext bc,
int  stream_id 
)
static

Definition at line 529 of file nutenc.c.

Referenced by write_headers().

◆ write_chapter()

static int write_chapter ( NUTContext nut,
AVIOContext bc,
int  id 
)
static

Definition at line 560 of file nutenc.c.

Referenced by write_headers().

◆ write_headers()

static int write_headers ( AVFormatContext avctx,
AVIOContext bc 
)
static

Definition at line 588 of file nutenc.c.

Referenced by nut_write_header(), nut_write_packet(), and nut_write_trailer().

◆ nut_write_header()

static int nut_write_header ( AVFormatContext s)
static

Definition at line 648 of file nutenc.c.

◆ get_needed_flags()

static int get_needed_flags ( NUTContext nut,
StreamContext nus,
FrameCode fc,
AVPacket pkt 
)
static

Definition at line 735 of file nutenc.c.

Referenced by nut_write_packet().

◆ find_best_header_idx()

static int find_best_header_idx ( NUTContext nut,
AVPacket pkt 
)
static

Definition at line 761 of file nutenc.c.

Referenced by nut_write_packet().

◆ nut_write_packet()

static int nut_write_packet ( AVFormatContext s,
AVPacket pkt 
)
static

Definition at line 780 of file nutenc.c.

◆ nut_write_trailer()

static int nut_write_trailer ( AVFormatContext s)
static

Definition at line 961 of file nutenc.c.

Variable Documentation

◆ options

const AVOption options[]
static
Initial value:
= {
{ "syncpoints", "NUT syncpoint behaviour", OFFSET(flags), AV_OPT_TYPE_FLAGS, {.i64 = 0}, INT_MIN, INT_MAX, E, "syncpoints" },
{ "default", "", 0, AV_OPT_TYPE_CONST, {.i64 = 0}, INT_MIN, INT_MAX, E, "syncpoints" },
{ "none", "Disable syncpoints, low overhead and unseekable", 0, AV_OPT_TYPE_CONST, {.i64 = NUT_PIPE}, INT_MIN, INT_MAX, E, "syncpoints" },
{ "timestamped", "Extend syncpoints with a wallclock timestamp", 0, AV_OPT_TYPE_CONST, {.i64 = NUT_BROADCAST}, INT_MIN, INT_MAX, E, "syncpoints" },
{ NULL },
}
#define NUT_PIPE
Definition: nut.h:107
static int flags
Definition: log.c:50
#define NUT_BROADCAST
Definition: nut.h:106
#define OFFSET(x)
Definition: nutenc.c:977
#define E
Definition: nutenc.c:978
NULL
Definition: eval.c:55

Definition at line 979 of file nutenc.c.

◆ class_name

class_name = "nutenc"
private

Definition at line 988 of file nutenc.c.

◆ item_name

item_name = av_default_item_name
private

Definition at line 989 of file nutenc.c.

◆ option

option = options
private

Definition at line 990 of file nutenc.c.

◆ version

version = LIBAVUTIL_VERSION_INT
private

Definition at line 991 of file nutenc.c.

◆ @148

const { ... }

◆ ff_nut_muxer

AVOutputFormat ff_nut_muxer
Initial value:
= {
.name = "nut",
.long_name = NULL_IF_CONFIG_SMALL("NUT"),
.mime_type = "video/x-nut",
.extensions = "nut",
.priv_data_size = sizeof(NUTContext),
.video_codec = AV_CODEC_ID_MPEG4,
.codec_tag = ff_nut_codec_tags,
.priv_class = &class,
}
#define CONFIG_LIBMP3LAME
Definition: config.h:368
Definition: nut.h:89
static int nut_write_packet(AVFormatContext *s, AVPacket *pkt)
Definition: nutenc.c:780
static int flags
Definition: log.c:50
static int write_trailer(AVFormatContext *s)
Definition: assenc.c:64
static int nut_write_header(AVFormatContext *s)
Definition: nutenc.c:648
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:148
preferred ID for decoding MPEG audio layer 1, 2 or 3
Definition: avcodec.h:479
#define AVFMT_GLOBALHEADER
Format wants global header.
Definition: avformat.h:419
static void write_packet(OutputFile *of, AVPacket *pkt, OutputStream *ost)
Definition: avconv.c:278
static int nut_write_trailer(AVFormatContext *s)
Definition: nutenc.c:961
#define CONFIG_LIBVORBIS
Definition: config.h:380
#define AVFMT_VARIABLE_FPS
Format allows variable fps.
Definition: avformat.h:423
static void write_header(FFV1Context *f)
Definition: ffv1enc.c:373
const AVCodecTag *const ff_nut_codec_tags[]
Definition: nut.c:160

Definition at line 994 of file nutenc.c.