[FFmpeg-devel] [V3 3/4] doc/codecs: document the -hwaccel_flags option.
Mark Thompson
sw at jkqxz.net
Mon Oct 9 14:50:39 EEST 2017
On 09/10/17 08:50, Jun Zhao wrote:
>
> From 2c5609811a1bad27fed802c674c9fb095edbb59b Mon Sep 17 00:00:00 2001
> From: Jun Zhao <jun.zhao at intel.com>
> Date: Mon, 9 Oct 2017 02:41:37 -0400
> Subject: [V3 3/4] doc/codecs: document the -hwaccel_flags option.
>
> Signed-off-by: Jun Zhao <jun.zhao at intel.com>
> ---
> doc/codecs.texi | 14 ++++++++++++++
> 1 file changed, 14 insertions(+)
>
> diff --git a/doc/codecs.texi b/doc/codecs.texi
> index 40f64fe4c8..2d23a11b7f 100644
> --- a/doc/codecs.texi
> +++ b/doc/codecs.texi
> @@ -1279,6 +1279,20 @@ ffprobe -dump_separator "
> Maximum number of pixels per image. This value can be used to avoid out of
> memory failures due to large images.
>
> + at item -hwaccel_flags @var{flags} (@emph{decoding,video})
> +Possible values:
> + at table @samp
> + at item ignore_level
> +ignore level even if the codec level used is unknown or higher than the maximum
> +supported level reported by the hardware driver
> + at item allow_high_depth
> +allow to output YUV pixel formats with a different chroma sampling than 4:2:0
> +and/or other than 8 bits per component
> + at item allow_profile_mismatch
> +attempt to decode anyway if HW accelerated decoder's supported profiles do not
> +exactly match the stream
> + at end table
These should be whole sentences like the rest of the file, rather than just the summary fragments from the options.
A specific example for the allow-profile-mismatch case would be nice, too. (Unlike the other two it's not very obvious what the use of it is.)
> +
> @item apply_cropping @var{bool} (@emph{decoding,video})
> Enable cropping if cropping parameters are multiples of the required
> alignment for the left and top parameters. If the alignment is not met the
> --
> 2.11.0
>
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