View Full Version : video glitch with extracted h264 video
Thunderbolt8
5th April 2007, 14:29
I extracted the video stream from some captured .ts h264 film stuff (25fps) and muxed it together with 23,976 fps audio track. I set the fps for the rawvideo stream to 24/1001 therefore.
I tried demuxing the video with h264tsto and mencoder, both to raw .h264 stream, but in both cases I get a video glitch at EXACTLY the same time, and this is not to be seen in the source.
I also tried demuxing to .mkv directly with h264tsto, but then mpc player closes the file directly after opening.
what can I do now to get rid of this glitch ?
Guest
5th April 2007, 16:00
If you play the raw .h264 ES with VLC, is the glitch present, or is it present only after remuxing?
Thunderbolt8
5th April 2007, 16:47
the rawfile has the ending .rawvideo, but when trying to open it with vlc the video window doesnt appear. statistics showing the computer is working on something, but the video screen extension just doesnt appear.
Guest
5th April 2007, 16:53
Post a section of the unprocessed transport stream that contains the area that results in a glitch.
Try renaming .rawvideo to .264 and see if VLC likes it then.
Thunderbolt8
5th April 2007, 17:01
renaming it to .h264 worked and the glitch is gone. so the mistake must have happened while muxing ?
i try to remux the file, but this will take some time, since the file has 20gb of size -.-
hm mkvmerge complained about the NALU size, I have to set it to 3, or it will abourt the process
Thunderbolt8
5th April 2007, 17:39
allright, muxing process ended, but mpc showing no picture, same for vlc afterwards. wtf ?
foxyshadis
5th April 2007, 19:03
3 isn't a valid NALU size, 4 is. 3 works in some decoders, though.
Thunderbolt8
5th April 2007, 19:24
extracted the file with mencoder now and remuxed it again with mkvmerge, but couldnt see any video both times, before and after the muxing. so maybe NALU 3 is the problem here. what are the differences between the different NALU levels at all?
btw. what does the -noskip command for mencoder refer to ?
Thunderbolt8
10th April 2007, 16:13
I tried to extract it with mencoder, and hope the h264 stream, skyONE-HD cap, is correct when using mencoder. but now I cant get the raw .264 stream into mp4 format, the file is almost 20gb big, so mp4box didnt work for me. I tried using mp4creator, but frankly said I have no clue how the command line does have to look like in that case, either I just dont understand the command line help or it doesnt work :S
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