mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-23 12:43:46 +02:00
0d2f4eedc8
mpjpeg video streamings would break and stop on Firefox after 1 - 30 seconds. In order to fix this, two changes were made: 1. Replaced all occurrences of '\n' character in mjpeg metadata with occurences of "\r\n". 2. Added "Content-length: <packet-size>" metadata entry for each sent frame. The change has been tested on Google Chrome 17.0.963.78 and Firefox 10.0.2 on lubuntu 11.10 and the streaming seems to work fine now.
70 lines
2.2 KiB
C
70 lines
2.2 KiB
C
/*
|
|
* Multipart JPEG format
|
|
* Copyright (c) 2000, 2001, 2002, 2003 Fabrice Bellard
|
|
*
|
|
* This file is part of FFmpeg.
|
|
*
|
|
* FFmpeg is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* FFmpeg is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with FFmpeg; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
#include "avformat.h"
|
|
|
|
/* Multipart JPEG */
|
|
|
|
#define BOUNDARY_TAG "ffserver"
|
|
|
|
static int mpjpeg_write_header(AVFormatContext *s)
|
|
{
|
|
uint8_t buf1[256];
|
|
|
|
snprintf(buf1, sizeof(buf1), "--%s\r\n", BOUNDARY_TAG);
|
|
avio_write(s->pb, buf1, strlen(buf1));
|
|
avio_flush(s->pb);
|
|
return 0;
|
|
}
|
|
|
|
static int mpjpeg_write_packet(AVFormatContext *s, AVPacket *pkt)
|
|
{
|
|
uint8_t buf1[256];
|
|
|
|
snprintf(buf1, sizeof(buf1), "Content-type: image/jpeg\r\n");
|
|
avio_write(s->pb, buf1, strlen(buf1));
|
|
|
|
snprintf(buf1, sizeof(buf1), "Content-length: %d\r\n\r\n", pkt->size);
|
|
avio_write(s->pb, buf1, strlen(buf1));
|
|
avio_write(s->pb, pkt->data, pkt->size);
|
|
|
|
snprintf(buf1, sizeof(buf1), "\r\n--%s\r\n", BOUNDARY_TAG);
|
|
avio_write(s->pb, buf1, strlen(buf1));
|
|
avio_flush(s->pb);
|
|
return 0;
|
|
}
|
|
|
|
static int mpjpeg_write_trailer(AVFormatContext *s)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
AVOutputFormat ff_mpjpeg_muxer = {
|
|
.name = "mpjpeg",
|
|
.long_name = NULL_IF_CONFIG_SMALL("MIME multipart JPEG format"),
|
|
.mime_type = "multipart/x-mixed-replace;boundary=" BOUNDARY_TAG,
|
|
.extensions = "mjpg",
|
|
.audio_codec = CODEC_ID_NONE,
|
|
.video_codec = CODEC_ID_MJPEG,
|
|
.write_header = mpjpeg_write_header,
|
|
.write_packet = mpjpeg_write_packet,
|
|
.write_trailer = mpjpeg_write_trailer,
|
|
};
|