Hi all,
as the title states, i would like to know how i can crop out the starting bits of my video without recompressing the file. I loaded the file into vdub, specified the first frame and the part that i wanted to crop out, and clicked delete. It has been removed from the vid when i play it back. However whenever i save it (Save as AVI F7), the deleted section reappears. Both my audio and video are selectes as direct stream copy. Please help.
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You can only cut at keyframes. See https://forum.videohelp.com/threads/339312-How-to-precisely-cut-AVI-in-Virtualdub?highl...ldub+keyframes
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Hi thanks for the quick reply.
So I need to be in full processing mode, select 'smart rendering" and select the Codec used for the initial compression, and it should recompress only the initial sections that I specified until the next keyframe, and the rest remain uncompressed? -
I selected full processing mode, ticked smart rendering, selected the relevant compression (XVid) and then reverted back to direct stream copy. When i tried to save the file, the part that i cut out is still there. How do i solve this?
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The link that Baldrick posted made me understand that I could only cut key frames in direct stream copy mode. However it also mentioned that I could work around that by selecting smart rendering. My previous post detailed my process, however i am still unable to cut before the second keyframe
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Btw, just for in the future to have less confusion: "Cropping" always only refers to an operation of cutting down the resolution dimensions of a clip - NEVER to be associated with cutting, pasting, trimming, inserting, appending or concatenating of clips in a sequence/timeline. That has to do with length of program.
Had you really wanted to crop, the answer would have been NO, you always have to re-encode.
Scott -
So..
how do i cut out a section that is not at a keyframe without recompression? -
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Changed the title to better suit the help.
I think,therefore i am a hamster. -
Please correct me if I'm wrong..
If i cut off the intro bits to the video in full processing mode, I can remove the bits that dont start on keyframes, and then recompress with the same settings of the initial compression with no loss of quality?
I usually work with the audio medium and anything that has been compressed from say wav to mp3 is irreversible in quality so even if i reconvert to wav, the initial sound quality is lost.
Is it the same in video? How should i go about doing this? -
In full processing mode with smart rendering enabled only cut GOPs will be recompressed. The rest of the video will pass through unchanged.
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