gistfile1.txt

(lldb) bt
* thread #11: tid = 0x7aba6, 0x000660f8 MobileVLCTest`ff_decode_block_coeffs_armv6 + 1188, stop reason = EXC_BAD_ACCESS (code=1, address=0x1e1c160e)
    frame #0: 0x000660f8 MobileVLCTest`ff_decode_block_coeffs_armv6 + 1188
  * frame #1: 0x00226422 MobileVLCTest`vp8_decode_mb_row_no_filter [inlined] decode_block_coeffs(c=0x01c111d4, block=0x02438900, i=0, zero_nhood=<unavailable>) + 5338 at vp8.c:835
    frame #2: 0x00226418 MobileVLCTest`vp8_decode_mb_row_no_filter [inlined] decode_mb_coeffs(td=<unavailable>, c=0x01c111d4, l_nnz=0x02438938) + 214 at vp8.c:851
    frame #3: 0x00226342 MobileVLCTest`vp8_decode_mb_row_no_filter(tdata=<unavailable>, avctx=<unavailable>, jobnr=<unavailable>, threadnr=<unavailable>) + 5114 at vp8.c:1701
    frame #4: 0x0022445e MobileVLCTest`vp8_decode_mb_row_sliced(avctx=0x01bc9c00, tdata=<unavailable>, jobnr=0, threadnr=0) + 106 at vp8.c:1815
    frame #5: 0x001ed94a MobileVLCTest`avcodec_default_execute2 + 66
    frame #6: 0x002243d6 MobileVLCTest`ff_vp8_decode_frame(avctx=<unavailable>, data=0x01578ce0, got_frame=0x01bc9910, avpkt=0x01bc98bc) + 12258 at vp8.c:1954
    frame #7: 0x001b7aca MobileVLCTest`frame_worker_thread(arg=0x01bc9800) + 258 at pthread_frame.c:145
    frame #8: 0x387c2c1c libsystem_pthread.dylib`_pthread_body + 140
    frame #9: 0x387c2b8e libsystem_pthread.dylib`_pthread_start + 102
(lldb) 

sample project: https://brionv.com/misc/MobileVLCTest.zip
webm file being loaded: http://upload.wikimedia.org/wikipedia/commons/transcoded/c/c1/Jarry_-_M%C3%A9tro_de_Montr%C3%A9al_%281280%C3%97720%29.ogv/Jarry_-_M%C3%A9tro_de_Montr%C3%A9al_%281280%C3%97720%29.ogv.360p.webm