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2ba45a60 DM |
1 | /* |
2 | * Multipart JPEG format | |
3 | * Copyright (c) 2000, 2001, 2002, 2003 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 | #include "avformat.h" | |
22 | ||
23 | /* Multipart JPEG */ | |
24 | ||
25 | #define BOUNDARY_TAG "ffserver" | |
26 | ||
27 | static int mpjpeg_write_header(AVFormatContext *s) | |
28 | { | |
29 | uint8_t buf1[256]; | |
30 | ||
31 | snprintf(buf1, sizeof(buf1), "--%s\r\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\r\n"); | |
42 | avio_write(s->pb, buf1, strlen(buf1)); | |
43 | ||
44 | snprintf(buf1, sizeof(buf1), "Content-length: %d\r\n\r\n", pkt->size); | |
45 | avio_write(s->pb, buf1, strlen(buf1)); | |
46 | avio_write(s->pb, pkt->data, pkt->size); | |
47 | ||
48 | snprintf(buf1, sizeof(buf1), "\r\n--%s\r\n", BOUNDARY_TAG); | |
49 | avio_write(s->pb, buf1, strlen(buf1)); | |
50 | return 0; | |
51 | } | |
52 | ||
53 | static int mpjpeg_write_trailer(AVFormatContext *s) | |
54 | { | |
55 | return 0; | |
56 | } | |
57 | ||
58 | AVOutputFormat ff_mpjpeg_muxer = { | |
59 | .name = "mpjpeg", | |
60 | .long_name = NULL_IF_CONFIG_SMALL("MIME multipart JPEG"), | |
61 | .mime_type = "multipart/x-mixed-replace;boundary=" BOUNDARY_TAG, | |
62 | .extensions = "mjpg", | |
63 | .audio_codec = AV_CODEC_ID_NONE, | |
64 | .video_codec = AV_CODEC_ID_MJPEG, | |
65 | .write_header = mpjpeg_write_header, | |
66 | .write_packet = mpjpeg_write_packet, | |
67 | .write_trailer = mpjpeg_write_trailer, | |
68 | .flags = AVFMT_NOTIMESTAMPS, | |
69 | }; |