Originally Posted by pachinko
Below the video in DVR+ Lister post 1, there's a download link for a zip file containing some sample DVR+ data and recording files for those wanting to play with DVR+ Lister without actually having to connect their DVR+ USB EHD to the computer. The files can be placed in any 2 writable folders on a computer (one for the data files, and one for the TS file)...You could even try playing the TS files in your players and editors
Now that was fascinating!
First of all, when I started the download, all hell broke loose; the Firefox browser started screaming at me at the top of its lungs that there was DEFINITELY malware and a virus in the download. I gather this is par for the course with many folks who download from Tiny Upload. So I decided it was a false alarm and I proceeded.
After I downloaded the files, but before I extracted them, I ran the zip files through Norton, which assured me all was well.
I then extracted the files. I then ran the extracted files through Norton; still all well.
So I then tried to play the files. Without exception, none would play in VLC. I then tried my GOM Player. All files played back fine.
I then re-contained them into new mp4 files with XMedia Recode, without reprocessing or trans-coding them at all, keeping them first-generation.
All the MP4 files played fine in VLC.
I was astounded at the resolutions and frame rates. Virtually every single file was different. There were even a few in there with a European frame rate of 24 frames a second. There was even one with a non-standard frame rate in there which I'd NEVER heard of, 27 fps. In addition, there was a Full 1920 x 1080 HD file that ran at 59.94 fps, which is one of the American standards for that resolution, as well as a Standard 1280 x 720 HD file that ran at 29.97 fps, another American standard.
Most of the files were either SD 704 x 480 or SD 720 x 480. There was even one file in there that was 640 x 480.
I'm really surprised that there are so many broadcast stations out there with non-standard resolutions and frame rates. Things have really turned into quite a jungle in the OTA world, even while most of us for decades have been watching through cable TV. Quite eye-opening. The last time I was watching OTA TV regularly, back in the 80s, everything was 720 x 487, 29.97 frames a second. Quite a change while everyone was inside their cable TV bubbles!
The good news is that there appears to be no problem at all configuring these files to work for standard computer players. Re-containing seems to do the trick. And even without re-containing, it looks like certain players, e.g. GOM, can handle the files fine with no massaging or manipulation at all.
Editing-wise, it will be a little tricky. While the audio codec is a standard one, AAC, the video codec is not. The standard video codec is H.264, but these files use the mpeg 1/2 video codec instead. This makes them a little difficult to edit. One has to reprocess/trans-code them to a more standard format, like h.264, if one wishes to edit them, which means taking them down a generation. That's a little disappointing. I wonder whether that's the raw format the broadcast stations use which the DVR+ is merely recording unchanged, or whether that's the codec that the DVR+ is using as a conversion codec before recording. If that is the codec that the DVR+ is arbitrarily using, I wonder if there's a way to change the codec being used by the DVR+. Or whether there's a way to make the DVR+ record the source OTA material without converting it at all (assuming the mpeg2 codec is not the codec being used by the station itself).
I uploaded one of them to Youtube, just to make sure there would be no problem, and there wasn't; I subsequently deleted it.
Hmmm. I hear tell that there is one video editor with smart rendering (meaning it will not re-process/trans-code the original video other than the first few frames and the last few frames of a clip) for the mpeg-2 codec, and that is Schnitt. Looks like I'll have to grab and learn one more piece of software before I'll be one hundred percent ready. My current smart render editor can only handle H.264 (Total Recorder).
Well, this has certainly saved me a LOT of time. Much of the testing and research I needed to do Saturday has now been done. Thanks again a whole bunch, VERY much.