Video deadlock fix

When watching TV with Kaffeine I frequently had complete engine lockups.
Multiple mutexes were waiting on each other. net_buf_ctrl requires the
demuxer to keep running while playback is still paused.

The diff might look a bit confusing. Basically, all I did was to replace

  phtread_mutex_lock ();
  ...
  pthread_mutex_unlock ();

with

  if (pthread_mutex_trylock ()) {
    ...
    pthread_mutex_unlock ();
  }

at a place where it does the least damage.

0 files changed, 0 insertions, 0 deletions