Changes between Version 5 and Version 6 of TheoraVorbisEncodingGuide


Ignore:
Timestamp:
Jun 16, 2019, 10:19:58 AM (4 months ago)
Author:
omniplex
Comment:

fixed q:a range and added q:a to b:a formulae/examples

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  • TheoraVorbisEncodingGuide

    v5 v6  
    1919* `-qscale:v` – video quality. Range is 0–10, where 10 is highest quality. 5–7 is a good range to try. If you omit `-qscale:v` (or the alias `-q:v`) then ffmpeg will use the default `-b:v 200k` which will most likely provide a poor quality output, and libtheora may drop/skip frames if the bitrate is too low.
    2020
    21 * `-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`.
     21* `-qscale:a` – audio quality. [https://ffmpeg.org/ffmpeg-codecs.html#libvorbis Range] is -1.0 to 10.0, where 10.0 is highest quality. Default is `-q:a 3` with a target of [https://wiki.hydrogenaud.io/index.php?title=Recommended_Ogg_Vorbis#Recommended_Encoder_Settings 112kbps]. The formula 16×(q+4) is used below '''4''', 32×q is used below '''8''', and 64×(q-4) otherwise. Examples: 112=16×('''3'''+4), 160=32×'''5''', 200=32×'''6.25''', 384=64×('''10'''-4).
    2222
    2323== Other Resources ==