Crash with "mmco: unref short failure"

[Lito]

During a video edit, after some video cuts, editor crash with this debug (full video can be played without problems into de editor):

#> openshot video.mp4

Added /usr/share/openshot to system path

------------------------- ERROR 1 ------------------------------
Failed to import 'from openshot import main'
Error Message: cannot import name main
----------------------------------------------------------------
--------------------------------
   OpenShot (version 1.4.3)
--------------------------------
Process no longer exists: 2069. Creating new pid lock file.
Adding files to the watch queue:
/home/user/video.mp4

Detecting formats, codecs, and filters...
---
video_codecs:
  - a64multi
  - a64multi5
  - alias_pix
  - amv
  - apng
  - asv1
  - asv2
  - avrp
  - avui
  - ayuv
  - bmp
  - cinepak
  - cljr
  - dnxhd
  - dpx
  - dvvideo
  - ffv1
  - ffvhuff
  - flashsv
  - flashsv2
  - flv
  - gif
  - h261
  - h263
  - h263p
  - hap
  - huffyuv
  - jpeg2000
  - jpegls
  - ljpeg
  - mjpeg
  - mpeg1video
  - mpeg2video
  - mpeg4
  - msmpeg4v2
  - msmpeg4
  - msvideo1
  - pam
  - pbm
  - pcx
  - pgm
  - pgmyuv
  - png
  - ppm
  - prores
  - prores_aw
  - prores_ks
  - qtrle
  - r10k
  - r210
  - rawvideo
  - roqvideo
  - rv10
  - rv20
  - sgi
  - snow
  - sunrast
  - svq1
  - targa
  - tiff
  - utvideo
  - v210
  - v308
  - v408
  - v410
  - wmv1
  - wmv2
  - xbm
  - xface
  - xwd
  - y41p
  - yuv4
  - zlib
  - zmbv
  - libopenjpeg
  - libschroedinger
  - libtheora
  - libvpx
  - libvpx-vp9
  - libwebp
  - libx264
  - libx264rgb
  - libx265
  - libxvid
...
---
audio_codecs:
  - comfortnoise
  - s302m
  - aac
  - ac3
  - ac3_fixed
  - alac
  - dca
  - eac3
  - flac
  - g723_1
  - mp2
  - mp2fixed
  - nellymoser
  - real_144
  - sonic
  - sonicls
  - tta
  - vorbis
  - wavpack
  - wmav1
  - wmav2
  - pcm_alaw
  - pcm_f32be
  - pcm_f32le
  - pcm_f64be
  - pcm_f64le
  - pcm_mulaw
  - pcm_s8
  - pcm_s8_planar
  - pcm_s16be
  - pcm_s16be_planar
  - pcm_s16le
  - pcm_s16le_planar
  - pcm_s24be
  - pcm_s24daud
  - pcm_s24le
  - pcm_s24le_planar
  - pcm_s32be
  - pcm_s32le
  - pcm_s32le_planar
  - pcm_u8
  - pcm_u16be
  - pcm_u16le
  - pcm_u24be
  - pcm_u24le
  - pcm_u32be
  - pcm_u32le
  - roq_dpcm
  - adpcm_adx
  - g722
  - g726
  - adpcm_ima_qt
  - adpcm_ima_wav
  - adpcm_ms
  - adpcm_swf
  - adpcm_yamaha
  - libgsm
  - libgsm_ms
  - libmp3lame
  - libopus
  - libshine
  - libspeex
  - libtwolame
  - libvorbis
  - libwavpack
...
---
formats:
  - a64
  - ac3
  - adts
  - adx
  - aiff
  - amr
  - apng
  - asf
  - ass
  - ast
  - asf_stream
  - au
  - avi
  - avm2
  - bit
  - caf
  - cavsvideo
  - crc
  - dash
  - data
  - daud
  - dirac
  - dnxhd
  - dts
  - dv
  - eac3
  - f4v
  - ffm
  - ffmetadata
  - filmstrip
  - flac
  - flv
  - framecrc
  - framemd5
  - g722
  - g723_1
  - gif
  - gxf
  - h261
  - h263
  - h264
  - hds
  - hevc
  - hls
  - ico
  - ilbc
  - image2
  - image2pipe
  - ipod
  - ircam
  - ismv
  - ivf
  - jacosub
  - latm
  - lrc
  - m4v
  - md5
  - matroska
  - matroska
  - microdvd
  - mjpeg
  - mlp
  - mmf
  - mov
  - mp2
  - mp3
  - mp4
  - mpeg
  - vcd
  - mpeg1video
  - dvd
  - svcd
  - mpeg2video
  - vob
  - mpegts
  - mpjpeg
  - mxf
  - mxf_d10
  - mxf_opatom
  - null
  - nut
  - oga
  - ogg
  - oma
  - opus
  - alaw
  - mulaw
  - f64be
  - f64le
  - f32be
  - f32le
  - s32be
  - s32le
  - s24be
  - s24le
  - s16be
  - s16le
  - s8
  - u32be
  - u32le
  - u24be
  - u24le
  - u16be
  - u16le
  - u8
  - psp
  - rawvideo
  - rm
  - roq
  - rso
  - rtp
  - rtp_mpegts
  - rtsp
  - sap
  - segment
  - stream_segment,ssegment
  - singlejpeg
  - smjpeg
  - smoothstreaming
  - sox
  - spx
  - spdif
  - srt
  - swf
  - tee
  - 3g2
  - 3gp
  - mkvtimestamp_v2
  - truehd
  - uncodedframecrc
  - vc1
  - vc1test
  - voc
  - w64
  - wav
  - webm
  - webm_dash_manifest
  - webm_chunk
  - webp
  - webvtt
  - wtv
  - wv
  - yuv4mpegpipe
  - alsa
  - caca
  - fbdev
  - opengl
  - oss
  - pulse
  - sdl
  - v4l2
  - xv
...
project state modified
state saved
state saved
on_treeFiles_row_activated
on_mnuPreview_activate
on_mnuRemoveTrack_activate clicked
project state modified
state saved
project state modified
state saved
on_btnZoomIn_clicked
on_btnZoomIn_clicked
on_btnZoomIn_clicked
on_btnZoomIn_clicked
on_btnZoomIn_clicked
on_btnZoomIn_clicked
on_btnZoomIn_clicked
on_btnZoomIn_clicked
on_btnZoomIn_clicked
on_btnZoomIn_clicked
on_btnZoomIn_clicked
on_btnZoomIn_clicked
on_tlbPlay_clicked called with self.GtkToolButton
on_tlbPlay_clicked called with self.GtkToolButton
on_tlbArrow_clicked called with self.GtkRadioToolButton
on_tlbRazor_clicked called with self.GtkRadioToolButton
project state modified
state saved
on_mnuRemoveClip_activate clicked
project state modified
state saved
on_tlbPlay_clicked called with self.GtkToolButton
on_tlbPlay_clicked called with self.GtkToolButton
project state modified
state saved
on_tlbPlay_clicked called with self.GtkToolButton
on_tlbPlay_clicked called with self.GtkToolButton
on_mnuRemoveClip_activate clicked
project state modified
state saved
on_frmMain_key_press_event
on_frmMain_key_press_event
on_tlbUndo_clicked
on_tlbPlay_clicked called with self.GtkToolButton
on_tlbPlay_clicked called with self.GtkToolButton
project state modified
state saved
on_mnuRemoveClip_activate clicked
project state modified
state saved
on_tlbPlay_clicked called with self.GtkToolButton
on_tlbPlay_clicked called with self.GtkToolButton
project state modified
state saved
on_tlbPlay_clicked called with self.GtkToolButton
on_tlbPlay_clicked called with self.GtkToolButton
on_tlbPlay_clicked called with self.GtkToolButton
on_tlbPlay_clicked called with self.GtkToolButton
project state modified
state saved
on_mnuRemoveClip_activate clicked
project state modified
state saved
on_tlbPlay_clicked called with self.GtkToolButton
on_tlbPlay_clicked called with self.GtkToolButton
project state modified
state saved
on_tlbPlay_clicked called with self.GtkToolButton
on_tlbPlay_clicked called with self.GtkToolButton
project state modified
state saved
on_mnuRemoveClip_activate clicked
project state modified
state saved
on_tlbPlay_clicked called with self.GtkToolButton
on_tlbPlay_clicked called with self.GtkToolButton
project state modified
state saved
on_tlbPlay_clicked called with self.GtkToolButton
on_tlbPlay_clicked called with self.GtkToolButton
project state modified
state saved
on_mnuRemoveClip_activate clicked
project state modified
state saved
on_tlbPlay_clicked called with self.GtkToolButton
on_tlbPlay_clicked called with self.GtkToolButton
project state modified
state saved
project state modified
state saved
on_mnuRemoveClip_activate clicked
project state modified
state saved
on_tlbPlay_clicked called with self.GtkToolButton
on_tlbPlay_clicked called with self.GtkToolButton
on_tlbPlay_clicked called with self.GtkToolButton
on_tlbPlay_clicked called with self.GtkToolButton
project state modified
state saved
on_mnuRemoveClip_activate clicked
project state modified
state saved
on_tlbPlay_clicked called with self.GtkToolButton
on_tlbPlay_clicked called with self.GtkToolButton
[h264 @ 0x7f3cfc0f9f60] mmco: unref short failure
[h264 @ 0x7f3cfc0f9f60] mmco: unref short failure
[h264 @ 0x7f3cfc0f9f60] mmco: unref short failure
[h264 @ 0x7f3cfc0f9f60] mmco: unref short failure
[h264 @ 0x7f3cfc0f9f60] mmco: unref short failure
[h264 @ 0x7f3cfc0f9f60] mmco: unref short failure
project state modified
state saved
on_tlbPlay_clicked called with self.GtkToolButton
[h264 @ 0x7f3cfcb9e240] mmco: unref short failure
[h264 @ 0x7f3cfcc34840] AVC: nal size -1426063360
[h264 @ 0x7f3cfcc34840] AVC: nal size -1426063360
[h264 @ 0x7f3cfcc34840] no frame!
[1] 5161 segmentation fault video.mp4

Video can be played with VLC without problems:

#> vlc video.mp4

VLC media player 2.2.2 Weatherwax (revision 2.2.2-0-g6259d80)
[000000000207d088] core libvlc: Running vlc with the default interface. Use 'cvlc' to use vlc without interface.
libva info: VA-API version 0.39.0
libva info: va_getDriverName() returns 0
libva info: Trying to open /usr/lib/x86_64-linux-gnu/dri/i965_drv_video.so
libva info: Found init function __vaDriverInit_0_39
libva info: va_openDriver() returns 0
[00007f0e94ca9a78] avcodec decoder: Using OpenGL/VAAPI backend for VDPAU for hardware decoding.

System info:

#> lsb_release -a

LSB Version: core-9.20160110ubuntu0.2-amd64:core-9.20160110ubuntu0.2-noarch:languages-3.2-amd64:languages-3.2-noarch:languages-4.0-amd64:languages-4.0-noarch:languages-4.1-amd64:languages-4.1-noarch:multimedia-3.2-amd64:multimedia-3.2-noarch:multimedia-4.0-amd64:multimedia-4.0-noarch:multimedia-4.1-amd64:multimedia-4.1-noarch:printing-9.20160110ubuntu0.2-amd64:printing-9.20160110ubuntu0.2-noarch:security-9.20160110ubuntu0.2-amd64:security-9.20160110ubuntu0.2-noarch
Distributor ID: Ubuntu
Description: Ubuntu 16.04.1 LTS
Release: 16.04
Codename: xenial

#> uname -a

Linux lito-pc 4.4.0-41-generic #61-Ubuntu SMP Tue Sep 27 17:27:48 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux

Architecture: 64 bits
Operating System & version: Ubuntu 16.04.1 LTS
Installation Method: apt-get from official ubuntu repositories
Version of Openshot installed: 1.4.3
BZR Revision used (if any):
MLT/melt version: melt 6.0.0

#> ffmpeg -version

ffmpeg version 2.8.6-1ubuntu2 Copyright (c) 2000-2016 the FFmpeg developers
built with gcc 5.3.1 (Ubuntu 5.3.1-11ubuntu1) 20160311
configuration: --prefix=/usr --extra-version=1ubuntu2 --build-suffix=-ffmpeg --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --cc=cc --cxx=g++ --enable-gpl --enable-shared --disable-stripping --disable-decoder=libopenjpeg --disable-decoder=libschroedinger --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-librtmp --enable-libschroedinger --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxvid --enable-libzvbi --enable-openal --enable-opengl --enable-x11grab --enable-libdc1394 --enable-libiec61883 --enable-libzmq --enable-frei0r --enable-libx264 --enable-libopencv
libavutil 54. 31.100 / 54. 31.100
libavcodec 56. 60.100 / 56. 60.100
libavformat 56. 40.101 / 56. 40.101
libavdevice 56. 4.100 / 56. 4.100
libavfilter 5. 40.101 / 5. 40.101
libavresample 2. 1. 0 / 2. 1. 0
libswscale 3. 1.101 / 3. 1.101
libswresample 1. 2.101 / 1. 2.101
libpostproc 53. 3.100 / 53. 3.100

[Lito (lito-eordes)]

More errors editing same video:

NEW SDL CONSUMER
[libx264 @ 0x7fbd5c81ed00] [Eval @ 0x7fbd3fffe0e0] Undefined constant or missing '(' in 'dct8x8'
[libx264 @ 0x7fbd5c81ed00] Unable to parse option value "dct8x8"
[ac3_fixed @ 0x7fbd5c0c6de0] [Eval @ 0x7fbd3fffe090] Undefined constant or missing '(' in 'dct8x8'
[ac3_fixed @ 0x7fbd5c0c6de0] Unable to parse option value "dct8x8"
[ac3_fixed @ 0x7fbd5c0c6de0] Channel layout not specified
[ac3_fixed @ 0x7fbd5c0c6de0] No channel layout specified. The encoder will guess the layout, but it might be incorrect.
on_frmExportVideo_destroy
NEW SDL CONSUMER
project state modified
state saved
on_tlbPlay_clicked called with self.GtkToolButton
on_tlbPlay_clicked called with self.GtkToolButton
on_tlbPlay_clicked called with self.GtkToolButton
on_tlbPlay_clicked called with self.GtkToolButton
on_tlbArrow_clicked called with self.GtkRadioToolButton
on_tlbRazor_clicked called with self.GtkRadioToolButton
project state modified
state saved
on_mnuRemoveClip_activate clicked
project state modified
state saved
[1] 7762 segmentation fault video.mp4