Transcoding Failure - Hit or miss

April 13, 2016

Client: 1.1.49 Fire TV 2

Server: Latest Beta

User tries to playback a episode of a tv show, and it never starts playback. FFMpeg process ends up continuing to run. This morning I had 5 instances of ffmpeg running for 9 1/2 hours.

Log file for one of them:

http://emby.marcusrocks.com:8096/videos/94b8c63c42ad950ae1afbaab1298ded6/live.m3u8?DeviceId=7480dc04544bc21c17237dad03e77c96519c519f&MediaSourceId=94b8c63c42ad950ae1afbaab1298ded6&VideoCodec=h264&AudioCodec=mp3&AudioStreamIndex=1&VideoBitrate=17732465&AudioBitrate=128000&MaxAudioChannels=6&Level=41&Profile=high&PlaySessionId=1ee7052afb944feb86766c0f3ba020d6&api_key=3fbdd997891b4f57911c4292febb6c6b&CopyTimestamps=false&ForceLiveStream=true

{"Protocol":"File","Id":"94b8c63c42ad950ae1afbaab1298ded6","Path":"\\\\tower\\Kids TV Shows\\X-Men- The Animated Series\\Season 2\\X-Men-.The.Animated.Series.S02E08.avi","Type":"Default","Container":"avi","Name":"SD/MPEG4/MP3","RunTimeTicks":12287880000,"ReadAtNativeFramerate":false,"SupportsTranscoding":true,"SupportsDirectStream":true,"SupportsDirectPlay":true,"RequiresOpening":false,"RequiresClosing":false,"VideoType":"VideoFile","MediaStreams":[{"Codec":"mpeg4","CodecTag":"XVID","IsInterlaced":false,"BitRate":1097829,"RefFrames":1,"IsDefault":false,"IsForced":false,"Height":480,"Width":640,"AverageFrameRate":23.86742,"RealFrameRate":23.86742,"Profile":"Advanced Simple Profile","Type":"Video","AspectRatio":"4:3","Index":0,"IsExternal":false,"IsTextSubtitleStream":false,"SupportsExternalStream":false,"PixelFormat":"yuv420p","Level":5,"IsAnamorphic":false},{"Codec":"mp3","IsInterlaced":false,"ChannelLayout":"stereo","BitRate":127704,"Channels":2,"SampleRate":44100,"IsDefault":false,"IsForced":false,"Type":"Audio","Index":1,"IsExternal":false,"IsTextSubtitleStream":false,"SupportsExternalStream":false,"Level":0}],"PlayableStreamFileNames":[],"Formats":[],"Bitrate":1235025,"RequiredHttpHeaders":{}}

B:\Users\Administrator\AppData\Roaming\Emby-Server\ffmpeg\20160401\ffmpeg.exe -fflags +genpts -i file:"\\tower\Kids TV Shows\X-Men- The Animated Series\Season 2\X-Men-.The.Animated.Series.S02E08.avi" -map_metadata -1 -threads 0 -map 0:0 -map 0:1 -map -0:s -codec:v:0 h264_qsv -pix_fmt yuv420p -preset 7 -look_ahead 0 -b:v 1097829 -maxrate 1097829 -bufsize 2195658 -vsync vfr -profile:v high -level 4.1 -force_key_frames "expr:gte(t,n_forced*3)" -vf "scale=trunc(min(max(iw\,ih*dar)\,1280)/2)*2:trunc(ow/dar/2)*2" -sc_threshold 0 -codec:a:0 copy -hls_time 3 -start_number 0 -hls_list_size 0 -hls_base_url "hls/d2659f802f4bd47f6f2cbb25507bc02d/" -y "B:\Users\Administrator\AppData\Roaming\Emby-Server\transcoding-temp\transcoding-temp\d2659f802f4bd47f6f2cbb25507bc02d.m3u8"

built with gcc 5.3.0 (GCC)

configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmfx --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzimg --enable-lzma --enable-decklink --enable-zlib

libavutil 55. 19.100 / 55. 19.100

libavcodec 57. 32.100 / 57. 32.100

libavformat 57. 29.101 / 57. 29.101

libavdevice 57. 0.101 / 57. 0.101

libavfilter 6. 40.102 / 6. 40.102

libswscale 4. 0.100 / 4. 0.100

libswresample 2. 0.101 / 2. 0.101

libpostproc 54. 0.100 / 54. 0.100

Input #0, avi, from 'file:\\tower\Kids TV Shows\X-Men- The Animated Series\Season 2\X-Men-.The.Animated.Series.S02E08.avi':

Duration: 00:20:28.79, start: 0.000000, bitrate: 1235 kb/s

Stream #0:0: Video: mpeg4 (Advanced Simple Profile) (XVID / 0x44495658), yuv420p, 640x480 [sAR 1:1 DAR 4:3], 1097 kb/s, 23.87 fps, 23.87 tbr, 23.87 tbn, 23.87 tbc

Stream #0:1: Audio: mp3 (U[0][0][0] / 0x0055), 44100 Hz, stereo, s16p, 127 kb/s

Incompatible pixel format 'yuv420p' for codec 'h264_qsv', auto-selecting format 'nv12'

Output #0, hls, to 'B:\Users\Administrator\AppData\Roaming\Emby-Server\transcoding-temp\transcoding-temp\d2659f802f4bd47f6f2cbb25507bc02d.m3u8':

Metadata:

encoder : Lavf57.29.101

Stream #0:0: Video: h264 (h264_qsv), nv12, 640x480 [sAR 1:1 DAR 4:3], q=2-31, 1097 kb/s, 23.87 fps, 90k tbn, 23.87 tbc

Metadata:

encoder : Lavc57.32.100 h264_qsv

Side data:

cpb: bitrate max/min/avg: 1097829/0/1097829 buffer size: 2195658 vbv_delay: -1

Stream #0:1: Audio: mp3 (U[0][0][0] / 0x0055), 44100 Hz, stereo, 127 kb/s

Stream mapping:

Stream #0:0 -> #0:0 (mpeg4 (native) -> h264 (h264_qsv))

Stream #0:1 -> #0:1 (copy)

Press [q] to stop, [?] for help

[mpeg4 @ 000000358c73b600] Video uses a non-standard and wasteful way to store B-frames ('packed B-frames'). Consider using the mpeg4_unpack_bframes bitstream filter without encoding but stream copy to fix it.