I realize this isn't a SMplayer error, but I wanted to see if you guys could give some suggestions on how to stop this error. I've tried disabling framedrop no luck. I've had this happen randomly on several files recently by different encoders and different shows. The only in common trait is that it happens randomly on H264 MKV files. It also happens on other players like VCL too. I'm posting in several places. Any help would be welcomed it just started it happening a couple weeks ago.
C:/Program Files (x86)/SMPlayer/mplayer/mplayer.exe -noquiet -nofs -nomouseinput -lavdopts threads=3 -sub-fuzziness 1 -identify -slave -vo direct3d -ao dsound -nokeepaspect -priority abovenormal -framedrop -hardframedrop -nodr -double -wid 197372 -monitorpixelaspect 1 -ass -embeddedfonts -ass-line-spacing 0 -ass-font-scale 1 -ass-styles C:/Users/cl0ud/.smplayer/styles.ass -fontconfig -font Arial -subfont-autoscale 0 -subfont-osd-scale 20 -subfont-text-scale 20 -subcp ISO-8859-1 -vid 0 -subpos 100 -volume 50 -nocache -osdlevel -vf-add screenshot -slices -channels 2 -af scaletempo,equalizer=0:0:0:0:0:0:0:0:0:0 -softvol -softvol-max 110 D:/Anime/Anime Downloading/Fairy Tail/[HorribleSubs]__Fairy_Tail_-_11_[720p].mkv
MPlayer Sherpya-SVN-r29355-4.5.0 (C) 2000-2009 MPlayer Team
Setting process priority: abovenormal
Playing D:/Anime/Anime Downloading/Fairy Tail/[HorribleSubs]__Fairy_Tail_-_11_[720p].mkv.
ID_VIDEO_ID=0
[mkv] Track ID 1: video (V_MPEG4/ISO/AVC), -vid 0
ID_AUDIO_ID=0
ID_AID_0_LANG=und
[mkv] Track ID 2: audio (A_AAC), -aid 0, -alang und
ID_SUBTITLE_ID=0
ID_SID_0_LANG=und
[mkv] Track ID 3: subtitles (S_TEXT/ASS), -sid 0, -slang und
[mkv] Will play video track 1.
Matroska file format detected.
VIDEO: [avc1] 1280x720 24bpp 23.976 fps 0.0 kbps ( 0.0 kbyte/s)
ID_FILENAME=D:/Anime/Anime Downloading/Fairy Tail/[HorribleSubs]__Fairy_Tail_-_11_[720p].mkv
ID_DEMUXER=mkv
ID_VIDEO_FORMAT=avc1
ID_VIDEO_BITRATE=0
ID_VIDEO_WIDTH=1280
ID_VIDEO_HEIGHT=720
ID_VIDEO_FPS=23.976
ID_VIDEO_ASPECT=1.7889
ID_AUDIO_FORMAT=MP4A
ID_AUDIO_BITRATE=0
ID_AUDIO_RATE=44100
ID_AUDIO_NCH=2
ID_LENGTH=1464.46
ID_SEEKABLE=1
ID_CHAPTERS=0
[ass] auto-open
Opening video filter: [screenshot]
[ass] Init
[ass] Updating font cache.
==========================================================================
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
Selected video codec: [ffh264] vfm: ffmpeg (FFmpeg H.264)
==========================================================================
ID_VIDEO_CODEC=ffh264
==========================================================================
Opening audio decoder: [faad] AAC (MPEG2/4 Advanced Audio Coding)
FAAD: compressed input bitrate missing, assuming 128kbit/s!
AUDIO: 44100 Hz, 2 ch, s16le, 128.0 kbit/9.07% (ratio: 16000->176400)
ID_AUDIO_BITRATE=128000
ID_AUDIO_RATE=44100
ID_AUDIO_NCH=2
Selected audio codec: [faad] afm: faad (FAAD AAC (MPEG-2/MPEG-4 Audio))
==========================================================================
AO: [dsound] 44100Hz 2ch s16le (2 bytes per sample)
ID_AUDIO_CODEC=faad
[Mixer] No hardware mixing, inserting volume filter.
Starting playback...
[h264 @ 00E5DE74]Cannot parallelize deblocking type 1, decoding such frames in sequential order
VDec: vo config request - 1280 x 720 (preferred colorspace: Planar YV12)
VDec: using Planar YV12 as output csp (no 0)
Movie-Aspect is 1.79:1 - prescaling to correct movie aspect.
ID_VIDEO_ASPECT=1.7889
SwScaler: reducing / aligning filtersize 5 -> 4
SwScaler: reducing / aligning filtersize 5 -> 4
SwScaler: reducing / aligning filtersize 1 -> 1
SwScaler: reducing / aligning filtersize 5 -> 4
[swscaler @ 00F0D894]BICUBIC scaler, from yuv420p to rgb24 using MMX2
[swscaler @ 00F0D894]using 4-tap MMX scaler for horizontal luminance scaling
[swscaler @ 00F0D894]using 4-tap MMX scaler for horizontal chrominance scaling
[swscaler @ 00F0D894]using n-tap MMX scaler for vertical scaling (BGR)
[swscaler @ 00F0D894]1280x720 -> 1288x720
VO: [direct3d] 1280x720 => 1288x720 Planar YV12
[h264 @ 00E5DE74]Reference 9 >= 8
[h264 @ 00E5DE74]error while decoding MB 15 22, bytestream (6425)
[h264 @ 00E5DE74]concealing 1874 DC, 1874 AC, 1874 MV errors
Exiting... (End of file)
ID_EXIT=EOF