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libavformat
nullenc.c
Go to the documentation of this file.
1
/*
2
* RAW null muxer
3
* Copyright (c) 2002 Fabrice Bellard
4
*
5
* This file is part of FFmpeg.
6
*
7
* FFmpeg is free software; you can redistribute it and/or
8
* modify it under the terms of the GNU Lesser General Public
9
* License as published by the Free Software Foundation; either
10
* version 2.1 of the License, or (at your option) any later version.
11
*
12
* FFmpeg is distributed in the hope that it will be useful,
13
* but WITHOUT ANY WARRANTY; without even the implied warranty of
14
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15
* Lesser General Public License for more details.
16
*
17
* You should have received a copy of the GNU Lesser General Public
18
* License along with FFmpeg; if not, write to the Free Software
19
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20
*/
21
22
#include "
avformat.h
"
23
#include "
mux.h
"
24
25
static
int
null_write_packet
(
struct
AVFormatContext
*
s
,
AVPacket
*
pkt
)
26
{
27
return
0;
28
}
29
30
const
AVOutputFormat
ff_null_muxer
= {
31
.
name
=
"null"
,
32
.long_name =
NULL_IF_CONFIG_SMALL
(
"raw null video"
),
33
.audio_codec =
AV_NE
(
AV_CODEC_ID_PCM_S16BE
,
AV_CODEC_ID_PCM_S16LE
),
34
.video_codec =
AV_CODEC_ID_WRAPPED_AVFRAME
,
35
.write_packet =
null_write_packet
,
36
.flags =
AVFMT_VARIABLE_FPS
|
AVFMT_NOFILE
|
AVFMT_NOTIMESTAMPS
,
37
.interleave_packet =
ff_interleave_packet_passthrough
,
38
};
AV_CODEC_ID_PCM_S16LE
@ AV_CODEC_ID_PCM_S16LE
Definition:
codec_id.h:318
AVOutputFormat::name
const char * name
Definition:
avformat.h:510
AVFMT_VARIABLE_FPS
#define AVFMT_VARIABLE_FPS
Format allows variable fps.
Definition:
avformat.h:484
AVFMT_NOTIMESTAMPS
#define AVFMT_NOTIMESTAMPS
Format does not need / have any timestamps.
Definition:
avformat.h:481
AV_CODEC_ID_PCM_S16BE
@ AV_CODEC_ID_PCM_S16BE
Definition:
codec_id.h:319
ff_null_muxer
const AVOutputFormat ff_null_muxer
Definition:
nullenc.c:30
pkt
AVPacket * pkt
Definition:
movenc.c:59
s
#define s(width, name)
Definition:
cbs_vp9.c:256
AV_NE
#define AV_NE(be, le)
Definition:
macros.h:33
AV_CODEC_ID_WRAPPED_AVFRAME
@ AV_CODEC_ID_WRAPPED_AVFRAME
Passthrough codec, AVFrames wrapped in AVPacket.
Definition:
codec_id.h:577
AVFormatContext
Format I/O context.
Definition:
avformat.h:1213
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:117
AVFMT_NOFILE
#define AVFMT_NOFILE
Demuxer will use avio_open, no opened file should be provided by the caller.
Definition:
avformat.h:470
null_write_packet
static int null_write_packet(struct AVFormatContext *s, AVPacket *pkt)
Definition:
nullenc.c:25
AVOutputFormat
Definition:
avformat.h:509
avformat.h
ff_interleave_packet_passthrough
int ff_interleave_packet_passthrough(AVFormatContext *s, AVPacket *pkt, int flush, int has_packet)
Interleave packets directly in the order in which they arrive without any sort of buffering.
Definition:
mux.c:1034
AVPacket
This structure stores compressed data.
Definition:
packet.h:351
mux.h
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