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Thread: Advice regarding conversion

  1. #1

    Default Advice regarding conversion

    I want to add ABR streaming to my On demand videos. I have read a guide and it says about Microsoft expression encoder. Also 2 xml files are provides. But the problem is Microsoft stopped the selling of Expression encoder pro and the free version dont have H264 support. I am confused. Now which encoder should i use? Any suggestions? i wont wanna work with FFMPEG.

  2. #2

    Default

    I do not currently have a PC to test, but it is my understanding that Expression 4 Encoder is still a viable option for encoding VOD content for ABR playback through Wowza.

    Also ffmpeg has been reported to have generated key-frame aligned multi-bitrate renditions by doing multiple passes. This was done on Linux and I have not tested. It may not work on other platforms.
    Ex:
    ffmpeg -y -i bigbuckbunny_1500.mp4 -c:a libfaac -ac 2 -ab 64k -c:v libx264 -preset:v veryfast -threads 0 -r 24 -g 48 -keyint_min 48 -sc_threshold 0 -x264opts no-mbtree:bframes=1 -pass 1 -b:v 286k -s 384x216 bigbuck-350k.mp4
    ffmpeg -y -i bigbuckbunny_1500.mp4 -c:a libfaac -ac 2 -ab 64k -c:v libx264 -preset:v fast -threads 0 -r 24 -g 48 -keyint_min 48 -sc_threshold 0 -x264opts no-mbtree:bframes=1 -pass 2 -b:v 286k -s 384x216 bigbuck-350k.mp4
    ffmpeg -y -i bigbuckbunny_1500.mp4 -c:a libfaac -ac 2 -ab 64k -c:v libx264 -preset:v fast -threads 0 -r 24 -g 48 -keyint_min 48 -sc_threshold 0 -x264opts no-mbtree:bframes=1 -pass 2 -b:v 836k -s 640x360 bigbuck-900k.mp4
    VOD Encoding Article

    Another option would be Handbreak

    Salvadore

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