[mov,mp4,m4a,3gp,3g2,mj2 @ 000001cb3508e060] ignoring 'frma' atom of 'mp4a', stream format is 'mp4a'

[Selur]

When using LWLibavSource in Vapoursynth like this:

Imports

import vapoursynth as vs
core = vs.get_core()

Loading Plugins

core.std.LoadPlugin(path="G:/Hybrid/Vapoursynth/vapoursynth64/plugins/SourceFilter/LSmashSource/vslsmashsource.dll")

Loading Source: C:/Users/Selur/Desktop/test2160.mov ProRes 10bit 4196x2160

clip = core.lsmas.LWLibavSource(source="C:/Users/Selur/Desktop/test2160.mov")

Cropping

clip = core.std.CropRel(clip=clip, left=0, right=0, top=224, bottom=224)

Output

clip.set_output()

I notice:
a. it's really slow compared to when using LWLibavSource in an Avisynth script
b. I get an error message when I close the preview:

[mov,mp4,m4a,3gp,3g2,mj2 @ 000001cb3508e060] ignoring 'frma' atom of 'mp4a', stream format is 'mp4a'

is there a way to suppress that error? (not really interested in the audio,..)

[tophf]

On a side note, why don't you use LibavSMASHSource that opens MOV/MP4 files almost instantly and without indexing?

As for the speed drop, I guess it's because VapourSynth properly loads high bitdepth from the file whereas AviSynth just opens it as-is (vertically "interleaved").

[Selur]

Haven't come around to test LibavSMASHSource, mainly testing out stuff in Vapoursynth atm. :)

[Selur]

Same error pops up when using core.lsmas.LibavSMASHSource

[Selur]

btw. also got an wmv file which gives me

[g2m @ 000001c3f648d1a0] No display info - skipping tile

uploaded the wmv (g2m4_vfr_screencast.wmv) and the mov, both to my google drive:
https://drive.google.com/folderview?id=0B_WxUS1XGCPASUZibG5XZkRfeTg&usp=sharing

=> an option to supress such messages would be nice,...

[VFR-maniac]

[mov,mp4,m4a,3gp,3g2,mj2 @ 000001cb3508e060] ignoring 'frma' atom of 'mp4a', stream format is 'mp4a'

I don't get why it is logged. mp4a boxes directly under both stsd and frma boxes are normal in QuickTime file format (mov).
Also if both are same 4CC, the bellow condition should be false always, so I don't know.

    default:
        if (format != sc->format) {
            av_log(c->fc, AV_LOG_WARNING,
                   "ignoring 'frma' atom of '%.4s', stream format is '%.4s'\n",
                   (char*)&format, (char*)&sc->format);
        }
        break;
    }

[Selur]

maybe the file I uploaded (see my last post) helps to determine what is going amiss :)