yading@11: /*
yading@11:  * Multipart JPEG format
yading@11:  * Copyright (c) 2000, 2001, 2002, 2003 Fabrice Bellard
yading@11:  *
yading@11:  * This file is part of FFmpeg.
yading@11:  *
yading@11:  * FFmpeg is free software; you can redistribute it and/or
yading@11:  * modify it under the terms of the GNU Lesser General Public
yading@11:  * License as published by the Free Software Foundation; either
yading@11:  * version 2.1 of the License, or (at your option) any later version.
yading@11:  *
yading@11:  * FFmpeg is distributed in the hope that it will be useful,
yading@11:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
yading@11:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
yading@11:  * Lesser General Public License for more details.
yading@11:  *
yading@11:  * You should have received a copy of the GNU Lesser General Public
yading@11:  * License along with FFmpeg; if not, write to the Free Software
yading@11:  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
yading@11:  */
yading@11: #include "avformat.h"
yading@11: 
yading@11: /* Multipart JPEG */
yading@11: 
yading@11: #define BOUNDARY_TAG "ffserver"
yading@11: 
yading@11: static int mpjpeg_write_header(AVFormatContext *s)
yading@11: {
yading@11:     uint8_t buf1[256];
yading@11: 
yading@11:     snprintf(buf1, sizeof(buf1), "--%s\r\n", BOUNDARY_TAG);
yading@11:     avio_write(s->pb, buf1, strlen(buf1));
yading@11:     avio_flush(s->pb);
yading@11:     return 0;
yading@11: }
yading@11: 
yading@11: static int mpjpeg_write_packet(AVFormatContext *s, AVPacket *pkt)
yading@11: {
yading@11:     uint8_t buf1[256];
yading@11: 
yading@11:     snprintf(buf1, sizeof(buf1), "Content-type: image/jpeg\r\n");
yading@11:     avio_write(s->pb, buf1, strlen(buf1));
yading@11: 
yading@11:     snprintf(buf1, sizeof(buf1), "Content-length: %d\r\n\r\n", pkt->size);
yading@11:     avio_write(s->pb, buf1, strlen(buf1));
yading@11:     avio_write(s->pb, pkt->data, pkt->size);
yading@11: 
yading@11:     snprintf(buf1, sizeof(buf1), "\r\n--%s\r\n", BOUNDARY_TAG);
yading@11:     avio_write(s->pb, buf1, strlen(buf1));
yading@11:     return 0;
yading@11: }
yading@11: 
yading@11: static int mpjpeg_write_trailer(AVFormatContext *s)
yading@11: {
yading@11:     return 0;
yading@11: }
yading@11: 
yading@11: AVOutputFormat ff_mpjpeg_muxer = {
yading@11:     .name              = "mpjpeg",
yading@11:     .long_name         = NULL_IF_CONFIG_SMALL("MIME multipart JPEG"),
yading@11:     .mime_type         = "multipart/x-mixed-replace;boundary=" BOUNDARY_TAG,
yading@11:     .extensions        = "mjpg",
yading@11:     .audio_codec       = AV_CODEC_ID_NONE,
yading@11:     .video_codec       = AV_CODEC_ID_MJPEG,
yading@11:     .write_header      = mpjpeg_write_header,
yading@11:     .write_packet      = mpjpeg_write_packet,
yading@11:     .write_trailer     = mpjpeg_write_trailer,
yading@11: };