I sent in a VHS tape for capture and transfer to DVD to a professional service. The digital video was returned to me spanned across 2 DVDs. The split between the 2 DVDs occurs right in the middle of a video, and there is a couple seconds of blank blue screen appended on to the end of the first video clip. This must have been added by the service's editing software. The second DVD immediately starts where the first one left off and doesn't have any lead-in blue screen.
I have ripped these DVDs to my PC and would like to seamlessly merge them into 1 MPEG2 without the blue screen in between.
My thinking is that if I do a frame accurate cut on the first video to cut out all of the blue screen and none of the video, I can then append the second video and the result should be a seamless video.
I have been searching for freeware seamless MPEG2 editors and the only one I could find, cuttermaran, says you have to demux the video and the audio before you can do the frame accurate cut. I don't have any problem demuxing and remuxing, but if I demux the video and audio, then make a frame accurate cut off the end of the video stream, how do I know how to edit the audio stream so that it still matches up with the video? If I cut the video, then remux it with the audio as-is, and then append the second video, the audio will be out of sync.
Or is there a freeware frame accurate MPEG2 editor that doesn't require you to demux first? Based on my searching I couldn't find one.
Try StreamFab Downloader and download from Netflix, Amazon, Youtube! Or Try DVDFab and copy Blu-rays! or rip iTunes movies!
+ Reply to Thread
Results 1 to 30 of 37
Thread
-
-
If you only have this pair of videos to worry about you can download a free trial of Vidoredo or SolveigMM Video Splitter and get it done before the free trial runs out.
-
VideoReDo TV Suite has a free trial. It has a quickfix feature which fixes any sync issues in your MPEG-2 files and it also supports both MP4 and MKV. Pricy at $100 but worth it if you do a lot of DVD/MPEG or TV captures.
Mpg2Cut2 is a good free editor.
Free Video Dub is good for simple cuts but crashes if you try to do too much with it. Just be careful not to install any of the adware while installing.
It's usually not a big deal cutting off the end of a video, it's making cuts between key frames that can give problems.
The reason it was advised to demux the audio and video is because DVDs have instructions telling the video and audio where to start. That route usually starts with DGIndex splitting the audio and video and using a AVS script to load the files into Virtualdub where you can fix any sync issue with audio interleaving where the name of the audio file from DGIndex tells you how much one way or the other the audio is off. Sometimes the audio is fine and you can just join the two mpegs without re-encoding in an mpeg editor.
VideoReDo TV Suite does away with having to demux since it has the quickfix feature which direct stream copies to a new mpeg. It has a joiner feature where you can join the two files after you've cut the blue frames off of the end of the first video. -
This is the one I have been using until now. Is it not frame accurate? What I'm worried about is if I use an editor that doesn't have frame accurate precision, I will end up chopping off the end of the first video along with the blank blue screen I am trying to remove at the very end.
-
"Frame accurate" is not easy with MPEG2. I find MPEG-VCR the most accurate of the tools in my arsenal BUT....you really can't put the words "frame accurate" and "MPEG2" in the same sentence if you are talking about cutting losslessly. You can do it up to a certain point then you run into the Key Frames issue.
Many of the tools mentioned by others (I imagine) only re-encode at the cuts....which is GOOD, but you may need to convert the MPEG2 to some sort of lossless AVI to get total frame accuracy, then re-encode back to MPEG2. Not the ideal situation but you do what you gotta do I'm afraid. -
but you may need to convert the MPEG2 to some sort of lossless AVI to get total frame accuracy
(personally I use ProjectX, to fix stream errors, and then Cuttermaran, to do the cutting, when cutting MPEG2 files. Confused why the topic starter doesn't cut audio&video in one go with it.) -
You are talking about "smart encoding" right?
Which softwares allow you to view/choose individual MPEG2 frames to cut on.....and then only re-encode to the previous or next key frame?
No matter how he joins these two together, he is going to need to get rid of that brief split second of blue screen/frames if indeed that blue stuff carries over during the join.
I've never used Cuttermaran, and have only used ProjectX to fix files from my old, dead Telefunken PVR, and even then the resulting file(s) had horrible audio offset problems. -
You are talking about "smart encoding" right?
Cuttermaran let's you choose the cut points you want and will reencode only the GOP(s) that are affected by the cut. -
-
I'm just trying to get an understanding.....is there software that will allow you to cut ANYWHERE you want, frame by frame in an MPEG2 file, without the need to re-encode the entire video? Maybe I've been using the term "key frame" wrong....I'm not sure.
MPEG-VCR says it does in it's description and indeed it does seem to me that it does give me more choices(for places to cut), but I often find myself reaching for other software like AviDemux and VDub to get a completely accurate cut, then of course the need to re-encode afterwards. -
I'm just trying to get an understanding.....is there software that will allow you to cut ANYWHERE you want, frame by frame in an MPEG2 file, without the need to re-encode the entire video?
Maybe I've been using the term "key frame" wrong....I'm not sure. -
I'm still not understanding why many times I could not get accurate enough with MPEG-VCR, only to turn around and get exactly the correct cut in Avidemux or VDub (knowing of course I will need to re-encode).
What I'm trying to say is that I see more frames(opportunities to cut more accurately) in some software than others, but it's not consistent. -
Last edited by sanlyn; 19th Mar 2014 at 02:53.
-
AviDemux, TDA , Magix Movie Edit , MPEG Video Wizard.....all assuming we are talking lossless cuts on key frames.
-
Last edited by sanlyn; 19th Mar 2014 at 02:53.
-
Like MPEG-VCR ?
The Womble MPEG2VCR is a software video editor that performs all editing on MPEG data with frame accuracy. It supports all MPEG-1(VCD) and MPEG-2(SVCD,DVD) bit streams, including MPEG-2 Transport streams for HDTV. Frame accurate editing: step forward and backward through your video, frame-by-frame, to find exactly the scene you want, or to cut out the ones you don't. -
But if I make a cut in the video stream, does cutterman make the corresponding cut to the audio stream so the two remain in sync? If not, then I don't see how this tool would be useful, because any cut you would make to the demuxed video stream would result in it being out of sync with respect to the audio.
-
-
No.
mpeg2cut cuts on GOP boundaries only. It's not frame accurate. It does not, cannot, re-encode
videoredo, solveigmm etc... when smart rendering, are frame accurate and will re-encode the few frames within the affected GOP. All other segments pass through untouched . GOP length for MPEG2 is typically around 12-15 frames. So those frames are re-encoded around every cut, unless the cut is right on the GOP boundary -
Audio and video normally remain in sync after editing with Cuttermaran. There are only 2 things I know of which cause them to go out of sync: (a) errors in one or both of the streams, and (b) the audio delay in the audio stream header is wrong. Problem (b) is relatively easy to fix. Problem (a) is virtually impossible to fix and you'd have the same problem with most other MPEG-2 editors. VideoReDo is the only MPEG-2 editor I have tried that is good at dealing with errors in audio and video streams, and it isn't free.
Last edited by usually_quiet; 26th Mar 2014 at 23:59.
Similar Threads
-
Testing H264/AVC frame accurate editing (AVCHD/MOV/MP4/MKV)) of SolveigMM
By DmitryV in forum EditingReplies: 17Last Post: 20th Oct 2023, 06:47 -
Cut MKV frame accurate
By Dimuk in forum Newbie / General discussionsReplies: 23Last Post: 29th Apr 2022, 10:20 -
Help: MP4, frame-accurate editing, lossless/smart encoding, fast navigation
By BobP2013 in forum EditingReplies: 6Last Post: 28th Jul 2013, 13:18 -
Frame accurate WMV edits
By jbeezer in forum EditingReplies: 5Last Post: 5th Jul 2010, 15:41 -
ISO: frame accurate *multiple audio* mpeg2 editor
By febefe in forum EditingReplies: 1Last Post: 5th Sep 2009, 19:05