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

igor_ubuntu sitelve at gmail.com
Sat Jul 15 21:11:32 CEST 2017


АFAIU
If a user want to get directly copied frames, he should set:
1 video track, no effects, input and output have the same size, input and
output media is all I-frames.

Then he goes to File/Render and set the same parameters as in original.
If the parameters are not exactly the same (or (for example) if he had a
effect on track), the user will get reencoded result.

Right ?



2017-07-15 21:56 GMT+03:00 Einar Rünkaru <einarrunkaru at gmail.com>:

>
>
> 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.
>
> Einar
>
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