# Alternative to Microsoft Expression Encoder 4 for multibitrate on OS X or Linux **URL:** \ **Category:** Wowza Streaming Engine\ **Created:** [October 18, 2012, 3:21pm UTC](https://community.wowza.com/t/alternative-to-microsoft-expression-encoder-4-for-multibitrate-on-os-x-or-linux/584 "2012-10-18T15:21:52Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![system](https://sea2.discourse-cdn.com/flex002/user_avatar/community.wowza.com/system/32/447_2.png) [@system](https://community.wowza.com/u/system)\ **Post date:** [October 18, 2012, 3:21pm UTC](https://community.wowza.com/t/alternative-to-microsoft-expression-encoder-4-for-multibitrate-on-os-x-or-linux/584/1 "2012-10-18T15:21:52Z")
Hello, Do you know an alternative to Microsoft Expression Encoder 4 that’s working on Mac OS X or Linux and that works for multibitrate with keyframes aligned ? ---
**Author:** ![Jim\_Sustacek](https://avatars.discourse-cdn.com/v4/letter/j/b487fb/32.png) [@Jim\_Sustacek](https://community.wowza.com/u/Jim_Sustacek)\ **Post date:** [October 19, 2012, 1:40pm UTC](https://community.wowza.com/t/alternative-to-microsoft-expression-encoder-4-for-multibitrate-on-os-x-or-linux/584/2 "2012-10-19T13:40:52Z")
FFMPEG: > [@Frequently requested FFMPEG command examples for Wowza](http://community.wowza.com/t/-/36326): > > Example commands and information for using FFmpeg as a live video/audio encoder with Wowza Media Server. Updated for FFmpeg Build git-a85b4a5 64-bit Static (2012-07-30) Note: Wowza Media Systems provides these instructions on as “AS-IS” basis. FFmpeg is not a Wowza Media Systems product. If you have problems getting FFmpeg to work properly it is best to contact FFmpeg support through their forums or wiki. The information collected here is a brief overview of common FFmpeg solutions. It is int… See “Miscellaneous Hints” section for multi-bitrate encoding example. Download Mac binaries here: [http://ffmpegmac.net/](http://ffmpegmac.net/)