clicking video

jeeper74 · Post by **jeeper74** » Mon Feb 18, 2008 6:35 pm

I am trying to work with some HD video, recorded by a Sanyo HD-1000 camera. I had the camera set on 1080i video, and recorded a short clip. I then copied the file from the SD card on the camera to the HDD. I opened it in VS 11, and then just simply tried to make a Blu-Ray file, as I have a PS3 and wanted to try it out. It made the file, and it plays on the PS3, but the video clicks, and plays fast. When moving ahead frame by frame on the playstation, the video jumps around, like it is playing out of sequence. Like frame 1, then 3, then 2, then 5, then 4, ect.... About one second into the file, the video jumps back about one half a second and starts playing what you just finished watching. The total time of the encoded file and the origional are the same, 4 seconds, but with the extra jumping around, the new file plays very fast.
So I thought I would try some different codecs out, I tried one for PSP, AVCHD, and one for a PC. All gave the same end result. Could this be due to the frame rate difference, 60 fields / sec down to 29.97 fields / sec? I could not find a way to increase this, does VS 11 not support P video? Or am I doing something else wrong?
My camera records in H.264 with a MP4 extension.
Thanks,
jeeper74

2Dogs · Post by **2Dogs** » Mon Feb 18, 2008 7:07 pm

Check that have installed the latest version of Quicktime, and that you have applied all patches and updates to VS11. (one patch and the 11.5 "power pack", I think)

Do you experience the same problems playing back the files on your pc? You could output to folders on your pc and play them from there.

Other than that, H.264 is a very tough format to edit, and some users recommend re-encoding to high bitrate mpeg2 for that purpose. That may be your best option. You should certainly be able to do some tests on short clips to establish whether or not it will work for you.

Regarding the matter of 1080i and 1080p - if your camera records in 1080i, you should output to (probably) upper field first from VS - if you right click on a sample video clip from your Sanyo in VS, it should show the field order.

There doesn't seem to be an option to output to 1080p, but your PS3 would presumably do the de-interlacing as required if you have a 1080p TV.

jeeper74 · Post by **jeeper74** » Mon Feb 18, 2008 7:36 pm

I do have the latest quicktime and all the patches for VS 11. As for the computer, I am pushing the limits of a laptop. It is a Athlon X2 64 bit 1.8GHz with 2 GB ram. I can edit and allow the computer to process video files in that display range, but I can not play them on this computer. I have not tried to edit the 1080 files until yesterday. I have not had this problem with lower video settings on the camera. Is it possible that this problem is coming from the fact that my computer can not display 1080 video?

To change the video from H.264 to MPG2 for editing purposes, do you recommend a stand alone converter or use VS 11 for that?

Thanks

2Dogs · Post by **2Dogs** » Mon Feb 18, 2008 8:18 pm

jeeper74 wrote:I do have the latest quicktime and all the patches for VS 11. As for the computer, I am pushing the limits of a laptop. It is a Athlon X2 64 bit 1.8GHz with 2 GB ram.

The laptop spec sounds OK. laptop hard drives tend to be slower, though recent ones use SATA hard drives with higher data transfer speeds. Do defragment the drive on a regular basis. I guess you should also install latest DirectX too, if you haven't already.

jeeper74 wrote: I can edit and allow the computer to process video files in that display range, but I can not play them on this computer. I have not tried to edit the 1080 files until yesterday. I have not had this problem with lower video settings on the camera. Is it possible that this problem is coming from the fact that my computer can not display 1080 video?

Not sure, but I wouldn't have thought so. I have some 720p DivX files which play fine on my laptop, even though it only has a 1024 x 768 display, so I would have thought that your laptop would re-size the video. The files do look better on my daughter's widescreen laptop or my pc, of course. Do you get an error message if you try to play the files on your laptop?

jeeper74 wrote:To change the video from H.264 to MPG2 for editing purposes, do you recommend a stand alone converter or use VS 11 for that?

For the sake of your wallet at least, you should try doing this in VS first, and I know that etech6355, the resident HD guru does this, so it can't be too shabby in VS.

jeeper74 · Post by **jeeper74** » Mon Feb 18, 2008 8:22 pm

OK, I just tried to take the same video, and export as a file, mpeg2 720x480. The same thing happened. the video clicks. as for the origional, it plays fine on the camera, and when quicktime opens to play it on the computer, it just gives me a green screen, it will play sound however.

jeeper74 · Post by **jeeper74** » Mon Feb 18, 2008 11:09 pm

Ok, I shot new video, ranging the full spectrum of my camera.

1080i @ 60 Fields / Sec
720p
720i
480p
480i
and a webcam setting of 320x240 at 30 fps

I loaded them into VS, and then placed them in the timeline, then I told it to export a file MPEG4 for Ipod at 640x480. Again my 1080i file clicks, and jumps around. The rest of my files worked great.

properties for the 1080i file are
File format MPEG-4 File
File size: 7,232 KB
Duration: 4.605 seconds

Video
Video type: H.264 Main Profile Video
Total frames: 276 frame(s)
Attributes: 24 bits, 1920x1080
Frame rate: 59.940 frames/sec
Data rate: 12231 Kbps

Audio
Audio type: MPEG AAC Audio
Total samples: 220,160
Attributes: 48000 Hz, 16 Bit, Stereo
Bit rate: 128 Kbps

And the settings of the project when making my file are

MPEG-4 Files
24 bits, 640 x 480, 30 fps
Frame-based
MPEG-4 SP Video: 2000 Kbps
48000 Hz, 16 Bit, Stereo
MPEG AAC Audio: 128 Kbps

thanks