[feature request] qarv_player functionality

[rkantos]

Currently at least on Ubuntu it is not possible to open raw video files from file manager with "open with" and qarv_videoplayer being the target.

Does anyone know of better players for Linux that can play the raw files or TIFFs as video? I'm looking for a program that has similar functionality to any video editor program, where frames can easily be skipped with keyboard hotkeys.

These features would also be nice for qarv_player, along with the possibility of using a similar structure (or even code) as with VLC, where space bar works as play/pause etc..

[exzombie]

arif already has something like this, I can port it to qarv_videoplayer. Basically, it has an Open dialog for raw video where you can specify the format. As for adding it to the "Open with" menu, I'm not sure that it can be done properly/unobtrusively because there is no standard filename extension for raw video; I'll look into it.

Keyboard shortcuts can be added, sure. If you have suggestions that would feel natural to users of video editors, please say so. For seeking, I guess something in the spirit of mplayer would be fine.

[rkantos]

Great! Maybe something could be done for the program to try detect at the beginning of the file? Maybe Qarv could make some sort of header to the raw file or a totally separate file named like the recording, but with an file extension, which qarv_videoplayer could then look for? As I understand, VLC (and most video players) for example doesn't care for filename extensions, but just read the header from the file. I don't know much about raw formats.. Maybe they don't have a header and cannot have one.

Like I said, functionality as in VLC would be a very good start, functionality like in Kinovea (https://www.kinovea.org/) would be more than I need.

At least these would be appreciated:

play/pause : spacebar
stop: (any key really) 's'
next in folder / next : button on the UI (or even a file browser to select files from)
frame by frame: arrow key up/down or left/right
frame by frame: mouse scrolling, one frame when scrolling up once
seeking: (ctrl+)arrow key left right
seek-skip: alt+number (1:10% of frames, 2:20% of frames, 3:30% of frames etc...)

The default VLC shortkey setup is good - too (except for going through individual frames): https://wiki.videolan.org/hotkeys_table/

[exzombie]

Maybe Qarv could make some sort of header to the raw file or a totally separate file named like the recording, but with an file extension, which qarv_videoplayer could then look for?

This is how it already works when the option "Write video information file" is enabled; qarv_videoplayer is associated to the *.qarv files that are created in this fashion.

[exzombie]

Opening raw videos even without *.qarv files is implemented in e796eab. Hotkeys are still TODO.