Originally Posted by bink298
Brian, Back in December you asked "Does it retain the codec information so you can play back the joined files on the A-HD? That's what is missing, the ability to edit and save in the Ambarella AVC1 codec that the A-HD will play."
Have you found a solution for this? I would like to use my A-HD to play video files that I copy to it from my PC. Currently, I am messing with a bunch of settings in'total video converter' but the best I can do is the A-HD LCD shows a thumbnail square with an X in it. It would be nice to play the video on the A-HD out the component cables to my HD TV. Thanks.
I've been playing with my A-HD and so far it has been a struggle to get the any kind of edited original source BACK into the camera so it will play. What I have been doing is to simply edit the source video using Womble and save it supposedly in it's original format (an h.264 MOV) When I do that I can play the edited material in any player capable of decoding that format. But NOT with the camera itself. I have a lot of utilities to work with Mpeg-2 where I can dissect every part and parcel of it, (headers, I,P,B frames, muxing rates etc.) But this new mpeg-4 h.264 codec isn't compatible with any of them.
I've recorded two short clips from the camcorder and simply joined them with about 3 or 4 different editors. Nothing else was done. Yet when the finished final clip was put back into the camera, it is not usable. (get the no-go thumbnail mentioned earlier)
I have a couple editors that give me a pretty fair amount of custom settings for the h.264 codec. And all the editors seem to be rendering the entire movie. So I guess there is some header or parameter that just doesn't match up with what the camcorder is expecting.
Actually I really have no need to play back the edited clips via the camera and usually archive them to disk or put them on the HTPC library disk. But it is interesting and I'd like to see why.
What would help would be some kind of utility that could dissect the original *.MOV and show all the header information and stream parameters. I'm thinking if we could find that out, then we may be able to use one of the editors that allow us to customize the parameters.
The only other thing might be that Aiptek is putting some kind of flag in the header that gets nuked during the rendering of the edited original. And the playback firmware in the Aiptek is looking for that information.
I HAVE taken clips off the SD card and copied them to various disks and computers and then copied them back to the SD card without modifying them. And they work fine. Ya jes can't edit the darn things. And I have exactly matched what little information any of my editors can glean from the original. Mostly frame size, video and audio bit rates, sampling rates, etc.
BTW, if you are putting them back into the camera you have to use the file naming as per the original. Ie. Filexxxx.mov. I took a file named FILE0001.MOV and renamed it FILE0005.MOV and it worked fine. But changing the name to something like "TEST.MOV" doesn't work at all. You'll get that unknown file icon.