[CinCV TNG] [PATCH] Removed can_copy_from from file* sources

Einar Rünkaru einarrunkaru at gmail.com
Sat Jul 15 20:56:19 CEST 2017

On 07/15/2017 06:53 PM, Johannes Sixt wrote:
> Am 15.07.2017 um 17:05 schrieb Andrew Randrianasulu:
>> В сообщении от Saturday 15 July 2017 17:40:36 Einar Rc3bcnkaru 
>> написал(а):
>>> Direct copy works when there is 1 video track, no effects, input and
>>> output have the same size, input and output media is all I-frames.
>>> DV - DV, PNG - PNG, TIFF - TIFF work.
>> Can it be extended  to work with mjpeg, DNxHD, I-frames only mpeg2 , 
>> ffv1, and
>> alikes ?
> Can it? Probably, yes. Is easy? Most probably not. It can certainly not 
> be extended to formats that have inter-frame compression.
>> I personally never used  workflow with reencoded source videos  due to 
>> extreme
>> lack of free space, ...
> Do you misunderstand the feature? The "reencoding" that is talked about 
> in this context does not use up disk space.

The problem discussed here is internal of the implementation of 
File/Render... The space of disk needed does not change.


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