which ffmpeg ?

[lyapounov]

On my synology, I have so far the choice between three ffmpeg (there may be more)

1) the original synology
2) the ffmpeg downoaded from http://johnvansickle.com/ffmpeg/ 
3) the synology community ffmpeg

My options:
convOut=-af aresample=resampler=soxr:precision=33:cheby=1:dither_method=shibata


Number 1 is out because it does not allow for the soxr library
Number 2 is 49M in size
Number 3 is 267K in size

So far, I heard no difference between 2 and 3

Why this difference in size ?

Has someone here an opinion ?

Thx

[simoncn]

It is usually best to use the latest version available.

FFmpeg has a very large number of optional components, mostly in support of video formats that are not relevant for MinimServer use. If the larger executable includes all optional components and the smaller executable is a basic subset, this could explain the size difference. There is no improvement in sound quality from including unused components.

Entering the command 'ffmpeg' shows the version number as well as the configuration options (optional components) that were used when building the executable.

[lyapounov]

thx Simon

well, the command ffmpeg tells the synology standard (4.1.16) while the community packet says 4.3.2-37

John Van Sickle is at 4.4 but you confirm what I thought: there are a lot about video in his build

I'll stick to the community version as of now.

Cheers

[GreenMtnGringo]

According to MinimWatch, the current Melco version of MinimServer2 appears to include ffmpeg v4.1.

Would an update to ffmpeg v4.4 possibly improve the sound quality of ffmpeg-based transcodes?

Thanks.

   

[simoncn]

New versions provide new features and bug fixes. It would be unusual for a new version to improve sound quality for existing functionality. I will try building and listening to 4.4 to see if I can hear a difference from 4.1.

[GreenMtnGringo]

Hi Simon, thanks very much.

[simoncn]

I have listened to the 4.4 build and I don't hear any difference. If anyone with a Melco would like to try this, do the following:

1) On the MinimWatch Properties page, select the Packages tab
2) Select ffmpeg-4.1-melco-2.0 and click Remove
3) In the "Other package" field, type: ffmpeg-4.4-melco-1.0
4) Click Install and follow the prompts
5) When the package has been installed successfully, click Relaunch

[GreenMtnGringo]

Hi Simon, thanks for demoing v4.4 and offering us the option to try v4.4.

[GreenMtnGringo]

Hi Simon. Is it possible to update FFmpeg on a Melco to v5.0 "Lorentz"? See: https://ffmpeg.org/ (first item under "News").

Thanks very much.

[simoncn]

This isn't possible at present.

Why do you need this? I looked at the list of changes and didn't see anything relevant to MinimServer.