[FFmpeg-devel] [PATCH] doc/faq: explain why -sameq is gone.

Stefano Sabatini stefasab at gmail.com
Sat Nov 3 11:49:39 CET 2012

On date Friday 2012-11-02 15:50:48 +0100, Nicolas George encoded:
> Signed-off-by: Nicolas George <nicolas.george at normalesup.org>
> ---
>  doc/faq.texi |   14 ++++++++++++++
>  1 file changed, 14 insertions(+)
> diff --git a/doc/faq.texi b/doc/faq.texi
> index 1158091..7be3fc6 100644
> --- a/doc/faq.texi
> +++ b/doc/faq.texi
> @@ -385,6 +385,20 @@ The size of the initial scan is controlled by two options: @code{probesize}
>  (default ~5 Mo) and @code{analyzeduration} (default 5,000,000 µs = 5 s). For
>  the subtitle stream to be detected, both values must be large enough.
> + at section Where did the @option{-sameq} option go?

Maybe more explicit (especially for non-native speakers):

"Why was the @file{ffmpeg} @option{-sameq} option removed? What to use

> +
> +The @option{-sameq} option meant "same quantizer", and made sense only in a
> +very limited set of cases. Unfortunately, a lot of people mistook it for
> +"same quality" and used it in places where it did not make sense: it had
> +roughly the expected visible effect, but achieved it in a very inefficient
> +way.
> +
> +Each encoder has its own set of options to set the quality-vs-size balance,
> +use the options for the encoder you are using to set the quality level to a
> +point acceptable for your tastes. The most common options to do that are
> + at option{-qscale} and @option{-qmax}, but you should peruse the documentation
> +of the encoder you chose.

Looks good otherwise, thanks for caring.
FFmpeg = Friendly Funny Merciless Pure Egregious Gadget

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