[FFmpeg-user] ffmpeg with damaged dv from tape capture

[Carl Eugen Hoyos]

Dave Rice <dave <at> dericed.com> writes:

> >> [1] I know dvgrab can output mov but ffmpeg does a 
> >> better job with this task: copying dv timecode to 
> >> mov timecode 
> > 
> >> and better handling of 4 channel audio in dv.
> > 
> > Unrelated: Could you post ffmpeg -i dv.mov console output 
> > so I know if this is a known issue? (Or post a sample.)
> 
> Here is ffmpeg -i for both the sample dv and the mov output 
> (very similar).

[...]

> Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'dv_tape_capture.mov':
>   Metadata:
>     major_brand     : qt  
>     minor_version   : 512
>     compatible_brands: qt  
>     encoder         : Lavf54.63.100
>   Duration: 00:00:00.33, start: 0.000000, bitrate: 28762 kb/s
>     Stream #0:0(eng): Video: dvvideo (dvc  / 0x20637664), 
> yuv411p, 720x480, 28771 kb/s, SAR 8:9 DAR 4:3, 29.97
> fps, 29.97 tbr, 30k tbn, 29.97 tbc
>     Metadata:
>       handler_name    : DataHandler

Where is four-channel audio?

If I understood your original mail correctly, you can remux 
the original dv stream with dvgrab but there is a problem 
with four-channel audio.
Did I misunderstand?

Carl Eugen