Darwin Streamer是Apple的开源RTSP服务器，采用APSL(Apple Public Source License)许可协议，可在免费商业使用。

1.下载安装

又找了一个名为mp4creator的工具，下载地址http://mp4creator.sourceforge.net/download/index.htm

F:\Video>mp4creator -list Gucci.mp4
Track   Type    Info
1       video   H264 Baseline@3, 24.920 secs, 2407 kbps, 800x608 @ 25.000000 fps
2       audio   MPEG-4 AAC LC, 24.938 secs, 126 kbps, 44100 HzF:\Video>mp4creator -hint Gucci.mp4
MP4ERROR: FindTrackIndex: Track id 0 doesn't exist
mp4creator: couldn't create hint track, no media samples出错了！！！试试对单个轨道进行hintF:\Video>mp4creator -hint=1 Gucci.mp4
MP4ERROR: MP4File::FindIntegerProperty: no such property - moov.trak[0].mdia.minf.stbl.stsd.*.esds.decConfigDescr.objectTypeId
MP4ERROR: MP4File::FindIntegerProperty: no such property - moov.trak[2].mdia.minf.stbl.stsd.*.esds.decConfigDescr.objectTypeIdF:\Video>mp4creator -list Gucci.mp4
Track   Type    Info
1       video   H264 Baseline@3, 24.920 secs, 2407 kbps, 800x608 @ 25.000000 fps
2       audio   MPEG-4 AAC LC, 24.938 secs, 126 kbps, 44100 Hz
3       hint    Payload H264 for track 1虽然hint过程中，有错误提示但还是成功添加了hint轨道F:\Video>mp4creator -hint=2 Gucci.mp4
MP4ERROR: MP4File::FindIntegerProperty: no such property - moov.trak[0].mdia.minf.stbl.stsd.*.esds.decConfigDescr.objectTypeId
MP4ERROR: MP4File::FindIntegerProperty: no such property - moov.trak[2].mdia.minf.stbl.stsd.*.esds.decConfigDescr.objectTypeId
MP4ERROR: MP4File::FindIntegerProperty: no such property - moov.trak[3].mdia.minf.stbl.stsd.*.esds.decConfigDescr.objectTypeIdF:\Video>mp4creator -list Gucci.mp4
Track   Type    Info
1       video   H264 Baseline@3, 24.920 secs, 2407 kbps, 800x608 @ 25.000000 fps
2       audio   MPEG-4 AAC LC, 24.938 secs, 126 kbps, 44100 Hz
3       hint    Payload H264 for track 1
4       hint    Payload mpeg4-generic for track 2

对音视频轨道单独进行hint才能成功，提示的错误暂时不明白是什么原因，不过用vlc2.0测试过，转换后的视频能正常播放。但是用ffplay和mplay播放时，均存在问题。

mp4creator还有许多功能，自带的usage信息如下：

F:\Video>mp4creator
usage: mp4creator  <options> <mp4-file>
  Options:
  -aac-old-file-format    Use old file format with 58 bit adts headers
  -aac-profile=[2|4]      Force AAC to mpeg2 or mpeg4 profile
  -allow-avi-files        Allow avi files
  -calcH263Bitrates       Calculate and add bitrate information
  -create=<input-file>    Create track from <input-file>
    input files can be of type: .263 .aac .ac3 .amr .mp3 .divx .mp4v .m4v .cmp .xvid .chap
  -encrypt[=<track-id>]   Encrypt a track, also -E
  -extract=<track-id>     Extract a track
  -delete=<track-id>      Delete a track
  -force3GPCompliance     Force making the file 3GP compliant. This disables ISMA compliance.
  -forceH263Profile=<profile> Force using H.263 Profile <profile> (default is 0)
  -forceH263Level=<level>     Force using H.263 level <level> (default is 10)
  -H263CbrTolerance=<value>   Define H.263 CBR tolerance of [value] (default: 10%)
  -hint[=<track-id>]      Create hint track, also -H
  -interleave             Use interleaved audio payload format, also -I
  -list                   List tracks in mp4 file
  -make-isma-10-compliant Insert bifs and od tracks required for some ISMA players (also -i)
  -mpeg4-video-profile=<level> Mpeg4 video profile override
  -mtu=<size>             Maximum Payload size for RTP packets in hint track
  -optimize               Optimize mp4 file layout
  -payload=<payload>      Rtp payload type
                          (use 3119 or mpa-robust for mp3 rfc 3119 support)
  -rate=<fps>             Video frame rate, e.g. 30 or 29.97
  -qth=<height>           Set a new height for QuickTime display
  -qtw=<width>            Set a new width for QuickTime display
  -timescale=<ticks>      Time scale (ticks per second)
  -use64bits              Use for large files
  -use64bitstime          Use for 64 Bit times (not QT player compatible)
  -variable-frame-rate    Enable variable frame rate for mpeg4 video
  -verbose[=[1-5]]        Enable debug messages
  -version                Display version information