Changes between Version 2 and Version 3 of TheoraVorbisEncodingGuide


Ignore:
Timestamp:
Jun 12, 2014, 10:03:30 PM (4 years ago)
Author:
llogan
Comment:

add VP8 note

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  • TheoraVorbisEncodingGuide

    v2 v3  
    1 = Theora and Vorbis Encoding Guide = 
     1= A Brief Theora and Vorbis Encoding Guide = 
    22 
    3 The Theora video format, Vorbis audio format, and Ogg container format were developed by [http://xiph.org/ Xiph.org] as free and open-source media formats. FFmpeg can create these formats by using the external encoding libraries libtheora and libvorbis. 
     3The Theora video format, Vorbis audio format, and Ogg container formats were developed by [http://xiph.org/ Xiph.org] as free and open-source media formats. `ffmpeg` can create these formats by using the external encoding libraries libtheora and libvorbis. 
    44 
    5 To use these encoders make sure your ffmpeg build has been compiled with `--enable-libtheora --enable-libvorbis` or see the output of `ffmpeg -codecs`. If you want to compile ffmpeg to support these encoders see the various [[CompilationGuide|FFmpeg Compilation Guides]] for detailed instructions. 
     5To use these encoders make sure your `ffmpeg` build has been compiled with `--enable-libtheora` and `--enable-libvorbis`, or refer to the output of `ffmpeg -codecs`. If you want to compile `ffmpeg` to support these encoders see the various [[CompilationGuide|FFmpeg Compilation Guides]] for detailed instructions. 
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    7 libvorbis is usually recommended over the experimental, native FFmpeg Vorbis audio encoder (`-codec:a vorbis -strict experimental`) since it does not provide comparable quality to libvorbis. 
     7libvorbis (`-codec:a libvorbis`) is recommended over the very experimental, native FFmpeg Vorbis audio encoder (`-codec:a vorbis -strict experimental`) since it does not provide comparable quality to libvorbis. 
     8 
     9{{{ 
     10#!div style="border: 1pt dotted; margin: 1em; background-color: #fffff9;" 
     11'''Note:''' More modern alternatives like VP8 can often provide better video quality at a lower bitrate. See the [[Encode/VP8|FFmpeg and VP8 Encoding Guide]]. 
     12}}} 
    813 
    914== Variable Bitrate (VBR) == 
     
    1621* `-qscale:a` – audio quality. Range is 0–10, where 10 is highest quality. 3–6 is a good range to try. Default is `-qscale:a 3`. 
    1722 
    18 '''Note:'''  if you omit `-codec:a libvorbis` then ffmpeg will default to the native FFmpeg flac audio encoder for ogg/ogv output container. 
     23{{{ 
     24#!div style="border: 1pt dotted; margin: 1em; background-color: #fffff9;" 
     25'''Note:''' If you omit `-codec:a libvorbis` then the native flac audio encoder will be used by default for the ogg/ogv output container. 
     26}}} 
    1927 
    2028== Other Resources == 
    2129* [http://wiki.hydrogenaudio.org/index.php?title=Recommended_Ogg_Vorbis#Recommended_Encoder_Settings Hydrogen Audio: Recommended Vorbis Encoder Settings] 
    22  
    23 {{{#!comment 
    24 Add HTML5 video info. 
    25 }}}