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
27static 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
37static 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    avio_flush(s->pb);
48    return 0;
49}
50
51static int mpjpeg_write_trailer(AVFormatContext *s)
52{
53    return 0;
54}
55
56AVOutputFormat ff_mpjpeg_muxer = {
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};
67