How to export 4k clips from premiere under 1.8 gb?
RekindlePhoto
16 Jan 2015 02:58
I agree with Ionescu, the only way the clip is not re-encoded is if Slipstream has the exact same capability as the original camera coding. A simple "save as" still needs to encode and unless it is told to use same package and codec I don't see how it can keep the original. Might be wrong.
Some cameras allow in camera trimming. In this case the original format, codec and package is retailed.
Some cameras allow in camera trimming. In this case the original format, codec and package is retailed.
mark29
16 Jan 2015 04:19
Respectfully I cannot agree with you. There is considerable information that supports that re-encoding does not occur in trim mode as the in/out occurs on key frames.
https://www.youtube.com/watch?v=njkETnWpaTc
https://forums.adobe.com/message/3919730
http://provideocoalition.com/ryoung/story/split-cut-join-mp4s-without-recompression
https://www.youtube.com/watch?v=njkETnWpaTc
https://forums.adobe.com/message/3919730
http://provideocoalition.com/ryoung/story/split-cut-join-mp4s-without-recompression
ionescu
16 Jan 2015 07:22
I have been looking through all documentation for the specified converters and none of them says it trimms without re-compression.
Your quote from MPEG Streamclip refers to the SOURCE file, not the one you save. The original file is not changed. The file you save, even keeping the name is a new one.
At 3:02 on your youtube example one can clearly see that Stream size is different: 97% vs 96%. That percentage is the compression ratio. Different compression ratio means clearly there was recompression.
The way those codecs work makes it impossible trimming without recompressing: frames are hardly interconnected, they are not independent fragments in the file. Reading and displaying any frame means doing interpolations, it is not like watching a picture in an album, the computer has to rebuild each of the frames, even if you set the keyframe at 1.
As a conclusion: trimming compressed streams without recompression is a myth.
p.s: Could anyone take just a part of the liquid from a bottle of beer and pour it into a new bottle without recompressing?
Your quote from MPEG Streamclip refers to the SOURCE file, not the one you save. The original file is not changed. The file you save, even keeping the name is a new one.
At 3:02 on your youtube example one can clearly see that Stream size is different: 97% vs 96%. That percentage is the compression ratio. Different compression ratio means clearly there was recompression.
The way those codecs work makes it impossible trimming without recompressing: frames are hardly interconnected, they are not independent fragments in the file. Reading and displaying any frame means doing interpolations, it is not like watching a picture in an album, the computer has to rebuild each of the frames, even if you set the keyframe at 1.
As a conclusion: trimming compressed streams without recompression is a myth.
p.s: Could anyone take just a part of the liquid from a bottle of beer and pour it into a new bottle without recompressing?