[FFmpeg-trac] #4885(avdevice:closed): DeckLink Device Not Freeing Nonpage Pool RAM

[FFmpeg]

#4885: DeckLink Device Not Freeing Nonpage Pool RAM
-------------------------------------+-------------------------------------
             Reporter:  bbostwick    |                    Owner:
                 Type:  defect       |                   Status:  closed
             Priority:  normal       |                Component:  avdevice
              Version:  git-master   |               Resolution:  invalid
             Keywords:  decklink     |               Blocked By:
  leak                               |  Reproduced by developer:  0
             Blocking:               |
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
Changes (by bbostwick):

 * status:  new => closed
 * resolution:   => invalid


Comment:

 I believe this is really the symptom of a too large rtbufsize. My
 rtbufsize was set to the maximum value; 2147480000.

 "When you set the rtbufsize "too big" it was causing an integer overflow,
 and thus "buffering" directshow stuff *infinitely* (which is bad since it
 can't keep up with the incoming stream)." -rogerdpack

 "ffmpeg -loglevel panic (and with the default rtbufsize, i.e. not setting
 it to anything)

 which is why you don't see the dropped frames messages, but they're
 probably still there..." -rogerdpack

 This is the source of the RAM leak and I think frame drops are normal over
 time, I was just viewing them as an error.

 https://ffmpeg.zeranoe.com/forum/viewtopic.php?t=657&start=40

--
Ticket URL: <https://trac.ffmpeg.org/ticket/4885#comment:3>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker