webm_chunk.c File Reference

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

Go to the source code of this file.

Data Structures
struct	WebMChunkContext

Macros
#define	MAX_FILENAME_SIZE   1024
#define	OFFSET(x)   offsetof(WebMChunkContext, x)

Functions
static int	webm_chunk_init (AVFormatContext *s)
static int	get_chunk_filename (AVFormatContext *s, char filename[MAX_FILENAME_SIZE])
static int	webm_chunk_write_header (AVFormatContext *s)
static int	chunk_start (AVFormatContext *s)
static int	chunk_end (AVFormatContext *s, int flush)
static int	webm_chunk_write_packet (AVFormatContext *s, AVPacket *pkt)
static int	webm_chunk_write_trailer (AVFormatContext *s)
static void	webm_chunk_deinit (AVFormatContext *s)

Variables
static const AVOption	options []
static const AVClass	webm_chunk_class
const FFOutputFormat	ff_webm_chunk_muxer

Macro Definition Documentation

MAX_FILENAME_SIZE

#define MAX_FILENAME_SIZE   1024

Definition at line 37 of file webm_chunk.c.

OFFSET

#define OFFSET

(

x

)

offsetof(WebMChunkContext, x)

Definition at line 279 of file webm_chunk.c.

Function Documentation

webm_chunk_init()

static int webm_chunk_init ( AVFormatContext *  s )

static

Definition at line 51 of file webm_chunk.c.

get_chunk_filename()

static int get_chunk_filename ( AVFormatContext *  s, char  filename[MAX_FILENAME_SIZE]  )

static

Definition at line 135 of file webm_chunk.c.

Referenced by chunk_end().

webm_chunk_write_header()

static int webm_chunk_write_header ( AVFormatContext *  s )

static

Definition at line 149 of file webm_chunk.c.

chunk_start()

static int chunk_start ( AVFormatContext *  s )

static

Definition at line 166 of file webm_chunk.c.

Referenced by g2m_decode_frame(), parse_chunk(), roqvideo_decode_frame(), webm_chunk_write_packet(), and webm_chunk_write_trailer().

chunk_end()

static int chunk_end ( AVFormatContext *  s, int  flush  )

static

Definition at line 179 of file webm_chunk.c.

Referenced by decode_lsp(), webm_chunk_write_packet(), and webm_chunk_write_trailer().

webm_chunk_write_packet()

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

static

Definition at line 215 of file webm_chunk.c.

webm_chunk_write_trailer()

static int webm_chunk_write_trailer ( AVFormatContext *  s )

static

Definition at line 247 of file webm_chunk.c.

webm_chunk_deinit()

static void webm_chunk_deinit ( AVFormatContext *  s )

static

Definition at line 264 of file webm_chunk.c.

Variable Documentation

options

const AVOption options[]

static

Initial value:

= {
    { "chunk_start_index",  "start index of the chunk", OFFSET(chunk_index), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM },
    { "header", "filename of the header where the initialization data will be written", OFFSET(header_filename), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, AV_OPT_FLAG_ENCODING_PARAM },
    { "audio_chunk_duration", "duration of each chunk in milliseconds", OFFSET(chunk_duration), AV_OPT_TYPE_INT, {.i64 = 5000}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM },
    { "method", "set the HTTP method", OFFSET(http_method), AV_OPT_TYPE_STRING, {.str = NULL},  0, 0, AV_OPT_FLAG_ENCODING_PARAM },
    { NULL },
}

Definition at line 280 of file webm_chunk.c.

Referenced by chunk_end().

webm_chunk_class

const AVClass webm_chunk_class

static

Initial value:

= {
    .class_name = "WebM Chunk Muxer",
    .item_name  = av_default_item_name,
    .option     = options,
    .version    = LIBAVUTIL_VERSION_INT,
}

Definition at line 288 of file webm_chunk.c.

ff_webm_chunk_muxer

const FFOutputFormat ff_webm_chunk_muxer

Initial value:

= {
    .p.name         = "webm_chunk",
    .p.long_name    = NULL_IF_CONFIG_SMALL("WebM Chunk Muxer"),
    .p.mime_type    = "video/webm",
    .p.extensions   = "chk",
    .p.flags        = AVFMT_NOFILE | AVFMT_GLOBALHEADER | AVFMT_NEEDNUMBER |
                      AVFMT_TS_NONSTRICT,
    .p.priv_class   = &webm_chunk_class,
    .priv_data_size = sizeof(WebMChunkContext),
    .init           = webm_chunk_init,
    .write_header   = webm_chunk_write_header,
    .write_packet   = webm_chunk_write_packet,
    .write_trailer  = webm_chunk_write_trailer,
    .deinit         = webm_chunk_deinit,
}

Definition at line 295 of file webm_chunk.c.