Libav
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00001 /* 00002 * Multipart JPEG format 00003 * Copyright (c) 2000, 2001, 2002, 2003 Fabrice Bellard 00004 * 00005 * This file is part of FFmpeg. 00006 * 00007 * FFmpeg is free software; you can redistribute it and/or 00008 * modify it under the terms of the GNU Lesser General Public 00009 * License as published by the Free Software Foundation; either 00010 * version 2.1 of the License, or (at your option) any later version. 00011 * 00012 * FFmpeg is distributed in the hope that it will be useful, 00013 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00014 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00015 * Lesser General Public License for more details. 00016 * 00017 * You should have received a copy of the GNU Lesser General Public 00018 * License along with FFmpeg; if not, write to the Free Software 00019 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 00020 */ 00021 #include "avformat.h" 00022 00023 /* Multipart JPEG */ 00024 00025 #define BOUNDARY_TAG "ffserver" 00026 00027 static int mpjpeg_write_header(AVFormatContext *s) 00028 { 00029 uint8_t buf1[256]; 00030 00031 snprintf(buf1, sizeof(buf1), "--%s\n", BOUNDARY_TAG); 00032 put_buffer(s->pb, buf1, strlen(buf1)); 00033 put_flush_packet(s->pb); 00034 return 0; 00035 } 00036 00037 static int mpjpeg_write_packet(AVFormatContext *s, AVPacket *pkt) 00038 { 00039 uint8_t buf1[256]; 00040 00041 snprintf(buf1, sizeof(buf1), "Content-type: image/jpeg\n\n"); 00042 put_buffer(s->pb, buf1, strlen(buf1)); 00043 put_buffer(s->pb, pkt->data, pkt->size); 00044 00045 snprintf(buf1, sizeof(buf1), "\n--%s\n", BOUNDARY_TAG); 00046 put_buffer(s->pb, buf1, strlen(buf1)); 00047 put_flush_packet(s->pb); 00048 return 0; 00049 } 00050 00051 static int mpjpeg_write_trailer(AVFormatContext *s) 00052 { 00053 return 0; 00054 } 00055 00056 AVOutputFormat mpjpeg_muxer = { 00057 "mpjpeg", 00058 NULL_IF_CONFIG_SMALL("MIME multipart JPEG format"), 00059 "multipart/x-mixed-replace;boundary=" BOUNDARY_TAG, 00060 "mjpg", 00061 0, 00062 CODEC_ID_NONE, 00063 CODEC_ID_MJPEG, 00064 mpjpeg_write_header, 00065 mpjpeg_write_packet, 00066 mpjpeg_write_trailer, 00067 };