[mythtv] mythfrontend segfault

[Rib Rdb]

When I try to play one of my recorded shows (using mythtv 0.16), it prints
Couldn't find a matching decoder for:
/video/recorded/1002_20041001190000_20041001193000.nuv
and then segfaults.  Here's the stack trace

Thread 10 (Thread 131081 (LWP 2094)):

#0  0x41527cc6 in nanosleep () from /lib/libc.so.6
No symbol table info available.
#1  0x00000000 in ?? ()
No symbol table info available.
#2  0x415516fa in usleep () from /lib/libc.so.6
No symbol table info available.
#3  0x4022bcb9 in RingBuffer::ReadAheadThread (this=0x87d26e8) at
RingBuffer.cpp:860
        totfree = 2303999
        ret = 128000
        used = 256001
#4  0x4022b89f in RingBuffer::startReader (type=0xfffffffc) at
RingBuffer.cpp:718
No locals.
#5  0x4134ee51 in pthread_start_thread () from /lib/libpthread.so.0
No symbol table info available.
#6  0x4134eecf in pthread_start_thread_event () from /lib/libpthread.so.0
No symbol table info available.
#7  0x415576ca in clone () from /lib/libc.so.6
No symbol table info available.

Thread 9 (Thread 114696 (LWP 2093)):
#0  0x403ab554 in IvtvDecoder::CanHandle (testbuf=0x0, filename=@0x0)
at ivtvdecoder.cpp:140
        videodev = {static null = {static null = <same as static
member of an already seen type>,
    d = 0x8218058, static shared_null = 0x8218058}, d = 0x82bf810,
static shared_null = 0x8218058}
        testfd = 25
        ok = true
        vcap = {driver = "ivtv", '\0' <repeats 11 times>, 
  card = "Vanilla iTVC15 card", '\0' <repeats 12 times>, bus_info =
"0", '\0' <repeats 30 times>,
  version = 266, capabilities = 17236019, reserved = {0, 0, 0, 0}}
        std = 12288
        probe = {filename = 0x826a438
"/video/recorded/1002_20041001190000_20041001193000.nuv",
  buf = 0xbebff1c4 "?N?\202?R?Q\002\003\217?\210\237\204?", buf_size = 2048}
        fmt = (AVInputFormat *) 0x0
#1  0x4019ea62 in NuppelVideoPlayer::OpenFile (this=0x82ab4e0) at
RingBuffer.h:57
        skipDsp = Cannot access memory at address 0x0