[Nexus 5 Android Development] kenshin33:
this is why:

I/GAV3 ( 6511): Thread[GAThread,5,main]: No campaign data found.
I/PlaylistFetcher( 230): fetching 'http://video20.jfk01.hls.twitch.tv/hls69/imaqtpie_12409922944_182861542/chunked/index-0000005530-LOPS.ts'
D/Twitch ( 6511): Updating surface layout for video size: 1280x720
E/MediaPlayer( 6511): Should have subtitle controller already set
D/Twitch ( 6511): onPrepared
D/NuPlayerDriver( 230): start(0xb4ac66a0)
D/Twitch ( 6511): Surface changed!
I/NuPlayer( 230): audio discontinuity (formatChange=0, time=1)
I/ACodec ( 230): [OMX.qcom.video.decoder.avc] DRC Mode: Dynamic Buffer Mode
I/NuPlayerDecoder( 230): [OMX.google.aac.decoder] resubmitting CSD
I/SoftAAC2( 230): Reconfiguring decoder: 0->48000 Hz, 0->2 channels
E/C2DColorConvert( 230): unknown format passed for luma alignment number
F/libc ( 230): Fatal signal 11 (SIGSEGV), code 1, fault addr 0x10 in tid 6868 (NuPlayerDriver )
E/C2DColorConvert( 230): unknown format passed for luma alignment number
E/C2DColorConvert( 230): unknown format passed for luma alignment number
E/C2DColorConvert( 230): unknown format passed for luma alignment number
E/C2DColorConvert( 230): unknown format passed for luma alignment number
E/C2DColorConvert( 230): unknown format passed for luma alignment number
I/ExtendedCodec( 230): Decoder will be in frame by frame mode
E/C2DColorConvert( 230): unknown format passed for luma alignment number
E/C2DColorConvert( 230): unknown format passed for luma alignment number
I/DEBUG ( 227): *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
I/DEBUG ( 227): Build fingerprint: 'google/hammerhead/hammerhead:5.0.1/LRX22C/1602158:user/release-keys'
I/DEBUG ( 227): Revision: '11'
I/DEBUG ( 227): ABI: 'arm'
I/DEBUG ( 227): pid: 230, tid: 6868, name: NuPlayerDriver >>> /system/bin/mediaserver <<<
I/DEBUG ( 227): signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr 0x10
W/NativeCrashListener( 807): Couldn't find ProcessRecord for pid 230
I/DEBUG ( 227): r0 00000008 r1 b4bffb98 r2 00000000 r3 b4bffbd8
E/DEBUG ( 227): AM write failure (32 / Broken pipe)
I/DEBUG ( 227): r4 b4bffb98 r5 b4bffb9c r6 00000008 r7 b4bffbdc
I/DEBUG ( 227): r8 b4bffc20 r9 b4bffca4 sl b6775618 fp 00000000
I/DEBUG ( 227): ip b65e0b8c sp b4bffb70 lr b6544aab pc b6e47022 cpsr 40070030
I/DEBUG ( 227):
I/DEBUG ( 227): backtrace:
I/DEBUG ( 227): #00 pc 00010022 /system/lib/libutils.so (android::SortedVectorImpl::_indexOrderOf(void const*, unsigned int*) const+5)
I/DEBUG ( 227): #01 pc 0008aaa7 /system/lib/libstagefright.so
I/DEBUG ( 227): #02 pc 0008aaf1 /system/lib/libstagefright.so (android::MetaData::findData(unsigned int, unsigned int*, void const**, unsigned int*) const+10)
I/DEBUG ( 227): #03 pc 0008af1d /system/lib/libstagefright.so (android::MetaData::findInt32(unsigned int, int*)+16)
I/DEBUG ( 227): #04 pc 000442cb /system/lib/libmediaplayerservice.so (android::NuPlayer::openAudioSink(android::sp<android::AMessage> const&, bool)+162)
I/DEBUG ( 227): #05 pc 000474f1 /system/lib/libmediaplayerservice.so (android::NuPlayer::onMessageReceived(android::sp<android::AMessage> const&)+3288)
I/DEBUG ( 227): #06 pc 0000a403 /system/lib/libstagefright_foundation.so (android::ALooperRoster::deliverMessage(android::sp<android::AMessage> const&)+166)
I/DEBUG ( 227): #07 pc 00009d85 /system/lib/libstagefright_foundation.so (android::ALooper::loop()+220)
I/DEBUG ( 227): #08 pc 0000ef11 /system/lib/libutils.so (android::Thread::_threadLoop(void*)+112)
I/DEBUG ( 227): #09 pc 0000ea81 /system/lib/libutils.so
I/DEBUG ( 227): #10 pc 00013a1b /system/lib/libc.so (__pthread_start(void*)+30)
I/DEBUG ( 227): #11 pc 00011a0f /system/lib/libc.so (__start_thread+6)