[MPlayer-dev-eng] [BUG] v4l driver buffer

[Gabucino]

MEncoder's v4l driver assigns half the physical mem to A/V buffer. My question
is why not assign half the FREE mem, or increase dynamically? In current case
situations like this can occur:

Selected device: BT878(Hauppauge (bt878))
 Capabilites: capture tuner overlay clipping frameram scales 
 Device type: 235
 Supported sizes: 48x32 => 924x576
 Inputs: 4
  0: Television: tuner audio tv camera  (tuner:1, norm:pal)
  1: Composite1: audio camera  (tuner:0, norm:pal)
  2: S-Video: audio camera  (tuner:0, norm:pal)
  3: Composite3: audio camera  (tuner:0, norm:pal)
Using input 'Television'
cannot allocate video buffer: Cannot allocate memory
Cannot open demuxer
Exiting...
--(gabucino at woodstock)-(75/pts)-(Gabucino rulez!)--
--($:~/x)-- free
             total       used       free     shared    buffers     cached
Mem:        191512     183612       7900          0      21320      53880
-/+ buffers/cache:     108412      83100
Swap:            0          0          0

This is dangerous in situations when the box is alone and records from crontab.
Then some memleak occurs (also in my case, XFree's MGA driver sucks), and
all is over.

-- 
Gabucino
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