Comments on: TMV In FFmpeg

By: Multimedia Mike

Multimedia Mike — Sun, 17 May 2009 03:57:58 +0000

@DrV: Indeed, intentional. I like to try to keep the sample size under 2 MB. I see that I only took 256K of the pop.tmv sample. That’s plenty to test the playback system. When I carve these partial samples, I just use the ‘dd’ Unix command. I don’t care about frame boundaries.

As Reimar mentioned, it’s also a happy coincidence that doing this helps validate that FFmpeg handles broken/corrupted frames gracefully.

By: Reimar

Reimar — Sat, 16 May 2009 20:34:08 +0000

@DrV: probably not intentional but still a good thing, it tests a bit how/how well the code handles incomplete and/or broken files.

By: DrV

DrV — Sat, 16 May 2009 17:39:15 +0000

The pop-partial.tmv sample seems to be cut part of the way through a frame; is that intentional?

By: Reimar

Reimar — Sat, 16 May 2009 08:16:08 +0000

Use ssh -Y.
I spent a lot of time (well, not that much) making MPlayer work with unpriviledged X sessions (which you get with ssh -X).
E.g. with ssh -X applications can’t read from your X “desktop”, thus making it hard/impossible to snoop on you remotely even with X forwarding.

By: Kostya

Kostya — Sat, 16 May 2009 07:09:32 +0000

FFplay works for me for ages – the problem with MacPorts is that it installs everything into /opt/local where ./configure cannot find it by default.

As for EEE – same trouble here, that’s because of default netbook-oriented window manager. Changing it to any other window manager should help (I like Lesstif/OpenMotif).

As for X session – indeed it works. Launch X11, in xterm type “ssh -X user@host”. Unfortunately, while MPlayer works that way, FFplay does not.

By: Multimedia Mike

Multimedia Mike — Sat, 16 May 2009 06:35:42 +0000

IOW, a MacPorts-based installation of SDL won’t work?

My other problem is that all of my (X11-capable) Linux machines are all VMware sessions. FFplay doesn’t work under VMware for some reason.

I also have my Eee PC. The problem there is that my Ubuntu-Eee distribution insists on maximizing all windows whether I want that or not.

Grrr… I just want a little screenshot. I haven’t tried forwarding an X session from a headless Linux machine back to my Mac OS X desktop. I wonder if that would work?

By: astrange

astrange — Sat, 16 May 2009 06:31:21 +0000

ffplay has consistently worked for me on OS X for years now. You just need a POSIX-style SDL installation instead of a framework.