FFmpeg
jacosubenc.c
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1 /*
2  * This file is part of FFmpeg.
3  *
4  * FFmpeg is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU Lesser General Public
6  * License as published by the Free Software Foundation; either
7  * version 2.1 of the License, or (at your option) any later version.
8  *
9  * FFmpeg is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12  * Lesser General Public License for more details.
13  *
14  * You should have received a copy of the GNU Lesser General Public
15  * License along with FFmpeg; if not, write to the Free Software
16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17  */
18 
19 #include "avformat.h"
20 #include "rawenc.h"
21 
23 {
24  const AVCodecParameters *par = s->streams[0]->codecpar;
25 
26  if (par->extradata_size) {
27  avio_write(s->pb, par->extradata, par->extradata_size - 1);
28  }
29  return 0;
30 }
31 
33  .name = "jacosub",
34  .long_name = NULL_IF_CONFIG_SMALL("JACOsub subtitle format"),
35  .mime_type = "text/x-jacosub",
36  .extensions = "jss,js",
37  .write_header = jacosub_write_header,
38  .write_packet = ff_raw_write_packet,
39  .flags = AVFMT_TS_NONSTRICT,
40  .subtitle_codec = AV_CODEC_ID_JACOSUB,
41 };
#define AVFMT_TS_NONSTRICT
Format does not require strictly increasing timestamps, but they must still be monotonic.
Definition: avformat.h:472
This struct describes the properties of an encoded stream.
Definition: codec_par.h:52
Format I/O context.
Definition: avformat.h:1351
AVStream ** streams
A list of all streams in the file.
Definition: avformat.h:1419
void avio_write(AVIOContext *s, const unsigned char *buf, int size)
Definition: aviobuf.c:225
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:153
int extradata_size
Size of the extradata content in bytes.
Definition: codec_par.h:78
const char * name
Definition: avformat.h:500
#define s(width, name)
Definition: cbs_vp9.c:257
int ff_raw_write_packet(AVFormatContext *s, AVPacket *pkt)
Definition: rawenc.c:29
AVOutputFormat ff_jacosub_muxer
Definition: jacosubenc.c:32
AVIOContext * pb
I/O context.
Definition: avformat.h:1393
Main libavformat public API header.
static int jacosub_write_header(AVFormatContext *s)
Definition: jacosubenc.c:22
uint8_t * extradata
Extra binary data needed for initializing the decoder, codec-dependent.
Definition: codec_par.h:74
AVCodecParameters * codecpar
Codec parameters associated with this stream.
Definition: avformat.h:1023