9e21099eaf5bfccd6db202bea36a26781ee89962
[libav.git] / libavformat / mpjpeg.c
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
27 static int mpjpeg_write_header(AVFormatContext *s)
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
37 static int mpjpeg_write_packet(AVFormatContext *s, AVPacket *pkt)
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 return 0;
48 }
49
50 static int mpjpeg_write_trailer(AVFormatContext *s)
51 {
52 return 0;
53 }
54
55 AVOutputFormat ff_mpjpeg_muxer = {
56 .name = "mpjpeg",
57 .long_name = NULL_IF_CONFIG_SMALL("MIME multipart JPEG"),
58 .mime_type = "multipart/x-mixed-replace;boundary=" BOUNDARY_TAG,
59 .extensions = "mjpg",
60 .audio_codec = AV_CODEC_ID_NONE,
61 .video_codec = AV_CODEC_ID_MJPEG,
62 .write_header = mpjpeg_write_header,
63 .write_packet = mpjpeg_write_packet,
64 .write_trailer = mpjpeg_write_trailer,
65 .flags = AVFMT_NOTIMESTAMPS,
66 };