[FFmpeg-devel] [PATCH 3/5] doc/general.texi: remove note about regressed AviSynth+ header

Stephen Hutchinson qyot27 at gmail.com
Thu Mar 28 13:49:31 EET 2019


On 3/28/2019 1:03 AM, Gyan wrote:
>
>
> On 25-03-2019 01:59 AM, Stephen Hutchinson wrote:
>> It's been fixed both AviSynth+-side and locally.
>> ---
>>   doc/general.texi | 13 -------------
>>   1 file changed, 13 deletions(-)
>>
>> diff --git a/doc/general.texi b/doc/general.texi
>> index fe94c40386..6ec52962ff 100644
>> --- a/doc/general.texi
>> +++ b/doc/general.texi
>> @@ -51,19 +51,6 @@ For Windows, supported AviSynth variants are
>>   For Linux and OS X, the supported AviSynth variant is
>>   @url{https://github.com/avxsynth/avxsynth, AvxSynth}.
>>   - at float NOTE
>> -There is currently a regression in AviSynth+'s @code{capi.h} header 
>> as of
>> -October 2016, which interferes with the ability for builds of FFmpeg 
>> to use
>> -MSVC-built binaries of AviSynth. Until this is resolved, you can 
>> make sure
>> -a known good version is installed by checking out a version from before
>> -the regression occurred:
>
> This would still be an issue for older versions. Maybe keep the note, 
> but add a date and revision range for the affected versions.

Older versions of what?  FFmpeg relies only on the copies of the headers 
in compat/avisynth, and with the patch to update the headers¹, we move 
directly from unaffected version to unaffected version.  The problem in 
the header doesn't actually affect AviSynth itself, it affects client 
programs that talk to it; the difference in behavior due to Windows' 
32-bit calling conventions is explained in a new note in the patchset².  
That note about checking out the correct version of the header never 
actually mattered to FFmpeg, it was brought in from merging commits from 
Libav (which is still affected by this situation, because they don't 
provide copies of the right headers in compat/).

¹http://ffmpeg.org/pipermail/ffmpeg-devel/2019-March/241503.html
²http://ffmpeg.org/pipermail/ffmpeg-devel/2019-March/241505.html


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