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 "mux.h"
21 #include "rawenc.h"
22 
24 {
25  const AVCodecParameters *par = s->streams[0]->codecpar;
26 
27  if (par->extradata_size) {
28  avio_write(s->pb, par->extradata, par->extradata_size);
29  }
30  return 0;
31 }
32 
34  .p.name = "jacosub",
35  .p.long_name = NULL_IF_CONFIG_SMALL("JACOsub subtitle format"),
36  .p.mime_type = "text/x-jacosub",
37  .p.extensions = "jss,js",
38  .p.flags = AVFMT_TS_NONSTRICT,
39  .p.video_codec = AV_CODEC_ID_NONE,
40  .p.audio_codec = AV_CODEC_ID_NONE,
41  .p.subtitle_codec = AV_CODEC_ID_JACOSUB,
42  .flags_internal = FF_OFMT_FLAG_MAX_ONE_OF_EACH |
44  .write_header = jacosub_write_header,
45  .write_packet = ff_raw_write_packet,
46 };
AVCodecParameters::extradata
uint8_t * extradata
Extra binary data needed for initializing the decoder, codec-dependent.
Definition: codec_par.h:69
AVOutputFormat::name
const char * name
Definition: avformat.h:510
AVCodecParameters
This struct describes the properties of an encoded stream.
Definition: codec_par.h:47
FF_OFMT_FLAG_ONLY_DEFAULT_CODECS
#define FF_OFMT_FLAG_ONLY_DEFAULT_CODECS
If this flag is set, then the only permitted audio/video/subtitle codec ids are AVOutputFormat....
Definition: mux.h:59
FFOutputFormat::p
AVOutputFormat p
The public AVOutputFormat.
Definition: mux.h:65
AV_CODEC_ID_JACOSUB
@ AV_CODEC_ID_JACOSUB
Definition: codec_id.h:560
s
#define s(width, name)
Definition: cbs_vp9.c:198
ff_raw_write_packet
int ff_raw_write_packet(AVFormatContext *s, AVPacket *pkt)
Definition: rawenc.c:31
AVFormatContext
Format I/O context.
Definition: avformat.h:1255
jacosub_write_header
static int jacosub_write_header(AVFormatContext *s)
Definition: jacosubenc.c:23
FFOutputFormat
Definition: mux.h:61
ff_jacosub_muxer
const FFOutputFormat ff_jacosub_muxer
Definition: jacosubenc.c:33
AVCodecParameters::extradata_size
int extradata_size
Size of the extradata content in bytes.
Definition: codec_par.h:73
NULL_IF_CONFIG_SMALL
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
Definition: internal.h:106
avio_write
void avio_write(AVIOContext *s, const unsigned char *buf, int size)
Definition: aviobuf.c:200
rawenc.h
AV_CODEC_ID_NONE
@ AV_CODEC_ID_NONE
Definition: codec_id.h:50
FF_OFMT_FLAG_MAX_ONE_OF_EACH
#define FF_OFMT_FLAG_MAX_ONE_OF_EACH
If this flag is set, it indicates that for each codec type whose corresponding default codec (i....
Definition: mux.h:50
AVFMT_TS_NONSTRICT
#define AVFMT_TS_NONSTRICT
Format does not require strictly increasing timestamps, but they must still be monotonic.
Definition: avformat.h:491
avformat.h
mux.h