astenc.c File Reference

#include "avformat.h"
#include "avio_internal.h"
#include "internal.h"
#include "ast.h"
#include "mux.h"
#include "libavutil/mathematics.h"
#include "libavutil/opt.h"

Go to the source code of this file.

Data Structures
struct	ASTMuxContext

Macros
#define	CHECK_LOOP(type)
#define	OFFSET(obj)

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

Variables
static const AVOption	options []
static const AVClass	ast_muxer_class
const FFOutputFormat	ff_ast_muxer

Macro Definition Documentation

CHECK_LOOP

#define CHECK_LOOP

(

type

)

Value:

    if (ast->loop ## type > 0) { \
        ast->loop ## type = av_rescale_rnd(ast->loop ## type, par->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"); \
            return AVERROR(EINVAL);  \
        } \
    }

Definition at line 39 of file astenc.c.

Referenced by ast_write_header().

OFFSET

#define OFFSET

(

obj

)

Value:

offsetof(ASTMuxContext, obj)

Definition at line 179 of file astenc.c.

Function Documentation

ast_write_header()

static int ast_write_header ( AVFormatContext * s )

static

Definition at line 48 of file astenc.c.

ast_write_packet()

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

static

Definition at line 101 of file astenc.c.

ast_write_trailer()

static int ast_write_trailer ( AVFormatContext * s )

static

Definition at line 122 of file astenc.c.

Variable Documentation

options

const AVOption options[]

static

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 },
}

Definition at line 180 of file astenc.c.

ast_muxer_class

const AVClass ast_muxer_class

static

Initial value:

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

Definition at line 186 of file astenc.c.

ff_ast_muxer

const FFOutputFormat ff_ast_muxer

Initial value:

= {
    .p.name            = "ast",
    .p.long_name       = NULL_IF_CONFIG_SMALL("AST (Audio Stream)"),
    .p.extensions      = "ast",
    .priv_data_size    = sizeof(ASTMuxContext),
    .p.audio_codec     = AV_CODEC_ID_PCM_S16BE_PLANAR,
    .p.video_codec     = AV_CODEC_ID_NONE,
    .p.subtitle_codec  = AV_CODEC_ID_NONE,
    .flags_internal    = FF_OFMT_FLAG_MAX_ONE_OF_EACH,
    .write_header      = ast_write_header,
    .write_packet      = ast_write_packet,
    .write_trailer     = ast_write_trailer,
    .p.priv_class      = &ast_muxer_class,
    .p.codec_tag       = ff_ast_codec_tags_list,
}

Definition at line 193 of file astenc.c.