[FFmpeg-devel] [PATCH] Quicktime tags for DVCPRO-HD

Baptiste Coudurier baptiste.coudurier
Tue Jun 9 21:03:55 CEST 2009

On 6/9/2009 9:16 AM, John Fletcher wrote:
>> From: John Fletcher, 11 May 2009 12:15
>>> From: Baptiste Coudurier, 10 May 2009 04:23
>>> It seems 720p25 uses 'dvhq' tag, 1080p30 uses 'dvh3', but it might
>>> work using 'dvh6' too.
>>> for 1080, width could be checked since it differs and fcp 
>> decoder will
>>> choke if tag is wrongly set.
>>> For 720 I think timebase is the only reliable way.
>>> Yes, it's complicated. 
>> So how do you want to proceed?  Anything I can do to help?
>> John
> I didn't get any response to that last message.
> Do you accept my patch?

Well, perfect way is to parse the DV frame and retrieve exact parameters.

After I think that codec timebase is the only reliable way and I think
100/2500 should be working as well in case of stream copy.

Baptiste COUDURIER                              GnuPG Key Id: 0x5C1ABAAA
Key fingerprint                 8D77134D20CC9220201FC5DB0AC9325C5C1ABAAA
FFmpeg maintainer                                  http://www.ffmpeg.org

More information about the ffmpeg-devel mailing list