mpjpeg.c
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1 /*
2  * Multipart JPEG format
3  * Copyright (c) 2000, 2001, 2002, 2003 Fabrice Bellard
4  *
5  * This file is part of Libav.
6  *
7  * Libav 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  * Libav 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 Libav; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21 #include "avformat.h"
22 
23 /* Multipart JPEG */
24 
25 #define BOUNDARY_TAG "avserver"
26 
28 {
29  uint8_t buf1[256];
30 
31  snprintf(buf1, sizeof(buf1), "--%s\n", BOUNDARY_TAG);
32  avio_write(s->pb, buf1, strlen(buf1));
33  avio_flush(s->pb);
34  return 0;
35 }
36 
38 {
39  uint8_t buf1[256];
40 
41  snprintf(buf1, sizeof(buf1), "Content-type: image/jpeg\n\n");
42  avio_write(s->pb, buf1, strlen(buf1));
43  avio_write(s->pb, pkt->data, pkt->size);
44 
45  snprintf(buf1, sizeof(buf1), "\n--%s\n", BOUNDARY_TAG);
46  avio_write(s->pb, buf1, strlen(buf1));
47  avio_flush(s->pb);
48  return 0;
49 }
50 
52 {
53  return 0;
54 }
55 
57  .name = "mpjpeg",
58  .long_name = NULL_IF_CONFIG_SMALL("MIME multipart JPEG format"),
59  .mime_type = "multipart/x-mixed-replace;boundary=" BOUNDARY_TAG,
60  .extensions = "mjpg",
61  .audio_codec = CODEC_ID_NONE,
62  .video_codec = CODEC_ID_MJPEG,
63  .write_header = mpjpeg_write_header,
64  .write_packet = mpjpeg_write_packet,
65  .write_trailer = mpjpeg_write_trailer,
66 };