[mythtv-commits] [MythTV/mythtv] 417fca: Fix mythfrontend crash when playing DVB radio

[kmdewaal]

  Branch: refs/heads/fixes/32
  Home:   https://github.com/MythTV/mythtv
  Commit: 417fcaed6ea38f08479a7454d1c58c8b53b5b2c1
      https://github.com/MythTV/mythtv/commit/417fcaed6ea38f08479a7454d1c58c8b53b5b2c1
  Author: Klaas de Waal <klaas at kldo.nl>
  Date:   2023-01-04 (Wed, 04 Jan 2023)

  Changed paths:
    M mythtv/libs/libmythtv/DetectLetterbox.cpp

  Log Message:
  -----------
  Fix mythfrontend crash when playing DVB radio

Check if there is a buffer pointer in the letterbox detection.
It is not clear if the letterbox detection should be active when
playing radio and if letterbox detection it is active it should
not be called with an invalid frame but anyway checking for null
pointers is always OK.

Thanks to Steve Evans / TheGorbag.

Refs #689

(cherry picked from commit 2a466c00a9088595b8eba0d9a6d917b7db7d5e53)
Signed-off-by: Klaas de Waal <klaas at kldo.nl>