1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
|
/*
* Multipart JPEG format
* Copyright (c) 2000, 2001, 2002, 2003 Fabrice Bellard
*
* This file is part of Libav.
*
* Libav is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* Libav is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "avformat.h"
/* Multipart JPEG */
#define BOUNDARY_TAG "avserver"
static int mpjpeg_write_header(AVFormatContext *s)
{
uint8_t buf1[256];
snprintf(buf1, sizeof(buf1), "--%s\n", BOUNDARY_TAG);
avio_write(s->pb, buf1, strlen(buf1));
avio_flush(s->pb);
return 0;
}
static int mpjpeg_write_packet(AVFormatContext *s, AVPacket *pkt)
{
uint8_t buf1[256];
snprintf(buf1, sizeof(buf1), "Content-type: image/jpeg\n\n");
avio_write(s->pb, buf1, strlen(buf1));
avio_write(s->pb, pkt->data, pkt->size);
snprintf(buf1, sizeof(buf1), "\n--%s\n", BOUNDARY_TAG);
avio_write(s->pb, buf1, strlen(buf1));
avio_flush(s->pb);
return 0;
}
static int mpjpeg_write_trailer(AVFormatContext *s)
{
return 0;
}
AVOutputFormat ff_mpjpeg_muxer = {
.name = "mpjpeg",
.long_name = NULL_IF_CONFIG_SMALL("MIME multipart JPEG"),
.mime_type = "multipart/x-mixed-replace;boundary=" BOUNDARY_TAG,
.extensions = "mjpg",
.audio_codec = AV_CODEC_ID_NONE,
.video_codec = AV_CODEC_ID_MJPEG,
.write_header = mpjpeg_write_header,
.write_packet = mpjpeg_write_packet,
.write_trailer = mpjpeg_write_trailer,
};
|
