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astenc.c File Reference
#include "avformat.h"
#include "avio_internal.h"
#include "internal.h"
#include "ast.h"
#include "libavutil/mathematics.h"
#include "libavutil/opt.h"

Go to the source code of this file.

Data Structures

struct  ASTMuxContext


#define CHECK_LOOP(type)
#define OFFSET(obj)   offsetof(ASTMuxContext, obj)


static int ast_write_header (AVFormatContext *s)
static int ast_write_packet (AVFormatContext *s, AVPacket *pkt)
static int ast_write_trailer (AVFormatContext *s)


static const AVOption options []
static const AVClass ast_muxer_class
AVOutputFormat ff_ast_muxer

Macro Definition Documentation

#define CHECK_LOOP (   type)
if (ast->loop ## type > 0) { \
ast->loop ## type = av_rescale_rnd(ast->loop ## type, enc->sample_rate, 1000, AV_ROUND_DOWN); \
if (ast->loop ## type < 0 || ast->loop ## type > UINT_MAX) { \
av_log(s, AV_LOG_ERROR, "Invalid loop" #type " value\n"); \
} \
const char * s
Definition: avisynth_c.h:631
int64_t av_rescale_rnd(int64_t a, int64_t b, int64_t c, enum AVRounding rnd)
Rescale a 64-bit integer with specified rounding.
Definition: mathematics.c:58
#define av_log(a,...)
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:176
#define AVERROR(e)
Definition: error.h:43
static int loop
Definition: ffplay.c:339
GLint GLenum type
Definition: opengl_enc.c:105
Round toward -infinity.
Definition: mathematics.h:73
if(ret< 0)
Definition: vf_mcdeint.c:282

Definition at line 38 of file astenc.c.

Referenced by ast_write_header().

#define OFFSET (   obj)    offsetof(ASTMuxContext, obj)

Definition at line 188 of file astenc.c.

Function Documentation

static int ast_write_header ( AVFormatContext s)

Definition at line 47 of file astenc.c.

static int ast_write_packet ( AVFormatContext s,
AVPacket pkt 

Definition at line 109 of file astenc.c.

static int ast_write_trailer ( AVFormatContext s)

Definition at line 132 of file astenc.c.

Variable Documentation

const AVOption options[]
Initial value:
= {
{ "loopstart", "Loopstart position in milliseconds.", OFFSET(loopstart), AV_OPT_TYPE_INT64, { .i64 = -1 }, -1, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM },
{ "loopend", "Loopend position in milliseconds.", OFFSET(loopend), AV_OPT_TYPE_INT64, { .i64 = 0 }, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM },
{ NULL },
#define NULL
Definition: coverity.c:32
a generic parameter which can be set by the user for muxing or encoding
Definition: opt.h:275
#define OFFSET(obj)
Definition: astenc.c:188

Definition at line 189 of file astenc.c.

const AVClass ast_muxer_class
Initial value:
= {
.class_name = "AST muxer",
.item_name = av_default_item_name,
.option = options,
static const AVOption options[]
Definition: astenc.c:189
Definition: version.h:70

Definition at line 195 of file astenc.c.

AVOutputFormat ff_ast_muxer
Initial value:
= {
.name = "ast",
.long_name = NULL_IF_CONFIG_SMALL("AST (Audio Stream)"),
.extensions = "ast",
.priv_data_size = sizeof(ASTMuxContext),
.video_codec = AV_CODEC_ID_NONE,
.priv_class = &ast_muxer_class,
.codec_tag = (const AVCodecTag* const []){ff_codec_ast_tags, 0},
static int ast_write_packet(AVFormatContext *s, AVPacket *pkt)
Definition: astenc.c:109
static int ast_write_trailer(AVFormatContext *s)
Definition: astenc.c:132
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:176
static int write_trailer(AVFormatContext *s1)
Definition: v4l2enc.c:94
static int ast_write_header(AVFormatContext *s)
Definition: astenc.c:47
const AVCodecTag ff_codec_ast_tags[]
Definition: ast.c:25
static void write_header(FFV1Context *f)
Definition: ffv1enc.c:497
static int write_packet(AVFormatContext *s1, AVPacket *pkt)
Definition: v4l2enc.c:86
static const AVClass ast_muxer_class
Definition: astenc.c:195

Definition at line 202 of file astenc.c.