[Bf-committers] Need to access more ffmpeg options for a big pipeline job.

[Campbell Barton]

Blender 2.4x had a way to custom configure ffmpeg properties which
still exists in the source code but was never exposed to users:

See: Scene.r.ffcodecdata.properties

For quickly getting this working it could be exposed to Python (after
that adding custom-properties panel shouldn't be much extra effort)

On Thu, Mar 9, 2017 at 8:30 PM, Sybren A. Stüvel <sybren at stuvel.eu> wrote:
> Hi Thomas,
>
> We have had similar requests in the past, and usually the answer was
> "Blender is not an encoder". The idea of that answer is that generally
> better results are obtained by having Blender render as images, and
> then compressing those into a video stream with a tool like ffmpeg.
> This also keeps the UI relatively simple, and bug reports more
> manageable.
>
> However, you're just asking for info on how to create a custom build
> for yourself, and I can help you with that. The video output code can
> be found in source/blender/blenkernel/intern/writeffmpeg.c, where
> you'll also see how we pass options to FFmpeg. It shouldn't be too
> hard for you to add some extra options there.
>
> Cheers,
> Sybren
>
> On Mon, Mar 06, 2017 at 11:59:04AM +0100, Thomas Volkmann wrote:
>> Hi,
>>
>> over the coming months (hopefully years) we need to create hundreds
>> of small movies, by just replacing logos, audio and edit orders, and
>> I would love Blender to be part of that automated pipeline.
>> Unfortunately the only thing missing at the moment is to be able add
>> a compressor-effect to the final audio during encoding. There is a
>> commandline option for that in ffmpeg, but unfortunately I can't
>> access it from Blender. Can someone give me an estimation on how
>> hard it would be (as in what needs to be done) to get this to work,
>> so we could use a custom build for that? Adding a inbetween
>> renderstep is not an option, and we probably would lookout for other
>> solutions before going that route.
>>
>> Any information on this is highly appreciated!
>>
>> Thanks,
>> Thomas
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>
> --
> Sybren A. Stüvel
>
> https://cloud.blender.org/
> https://stuvelfoto.nl/
> https://stuvel.eu/
>
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-- 
- Campbell