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• FFMPEG creates incorrect Source duration

  4 août 2016, par Byron Whitlock

  When transcoding movies from an AVI to mp4 sometimes FFMPEG sets the "Source Duration" incorrectly.

  This messes up playback on IOS devices. Specifically, it causes the video to cut out at "Source duration" while the audio still plays.

  

  FFMPEG output transcode doesn’t’ show anything odd at all. Looks normal, no errors or warnings.

  • Can I force FFMPEG to never add the "Source Duration" metadata ?
  • How do I edit the track metadata shown by mediainfo ? I tried Mp4box, and a few others, but I can’t seem to figure out how to edit track level metadata.

  Thanks.

  Log is below.

  ffmpeg version N-77455-g4707497 Copyright (c) 2000-2015 the FFmpeg developers   built with gcc 5.2.0 (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-libdcadec --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-aacenc --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. 11.100 / 55. 11.100   libavcodec     57. 20.100 / 57. 20.100   libavformat    57. 20.100 / 57. 20.100   libavdevice    57.  0.100 / 57.  0.100   libavfilter     6. 21.101 / 
  
      6. 21.101   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 'E:\MEDIA\Central.Intelligence.2016.HC.HDRip.XviD.AC3-EVO\Central.Intelligence.2016.HC.HDRip.XviD.AC3-EVO.avi': Metadata:
  
          encoder         : VirtualDubMod 1.5.10.2 (build 2542/release)   Duration: 01:51:43.27, start: 0.000000, bitrate: 1765 kb/s
  
          Stream #0:0: Video: mpeg4 (Advanced Simple Profile) (XVID / 0x44495658), yuv420p, 720x304 [SAR 1:1 DAR 45:19], 1563 kb/s, 23.98 fps, 23.98 tbr, 23.98 tbn, 23.98 tbc
  
          Stream #0:1: Audio: ac3 ([0] [0][0] / 0x2000), 48000 Hz, stereo, fltp, 192 kb/s [libx264 @ 000000f3c80a0a80] using SAR=405/304 [libx264 @ 000000f3c80a0a80] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 AVX2 LZCNT BMI2 [libx264 @ 000000f3c80a0a80] profile High, level 3.1 [libx264 @ 000000f3c80a0a80] 264 - core 148 r2638 7599210 - H.264/MPEG-4 AVC codec - Copyleft 2003-2015 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=6 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=23 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=abr mbtree=1 bitrate=1280 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00 Output #0, mp4, to 'F:\STREAMS\Central.Intelligence.2016.HC.HDRip.XviD.AC3-EVO.avi.1280x720_1000kbps.TEMP.mp4': Metadata:
  
          encoder         : Lavf57.20.100
  
          Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 1280x720 [SAR 405:304 DAR 45:19], q=-1--1, 1280 kb/s, 23.98 fps, 10000k tbn, 23.98 tbc
  
          Metadata:
  
            encoder         : Lavc57.20.100 libx264
  
          Side data:
  
            unknown side data type 10 (24 bytes)
  
          Stream #0:1: Audio: aac ([64][0][0][0] / 0x0040), 44100 Hz, stereo, fltp, 160 kb/s
  
          Metadata:
  
            encoder         : Lavc57.20.100 aac Stream mapping:   Stream #0:0 -> #0:0 (mpeg4 (native) -> h264 (libx264))   Stream #0:1 -> #0:1 (ac3 (native) -> aac (native)) Press [q] to stop, [?] for help [mpeg4 @ 000000f3c80ae220] 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. 
  
  frame=   15 fps=0.0 q=0.0 size=       0kB time=00:00:01.18 bitrate=   0.3kbits/s dup=1 drop=0 speed=2.36x   
  
  --SNIP---
  
  frame=160704 fps= 16 q=30.0 size= 1180376kB time=01:51:43.08 bitrate=1442.6kbits/s dup=1 drop=0 speed=0.671x     
  
  [libx264 @ 0000001f60c5d900] frame I:1167  Avg QP:19.08  size: 44465
  
  [libx264 @ 0000001f60c5d900] frame P:63049 Avg QP:22.26  size: 12774
  
  [libx264 @ 0000001f60c5d900] frame B:110691 Avg QP:24.81  size:  2739
  
  [libx264 @ 0000001f60c5d900] consecutive B-frames:  6.0% 22.8% 18.3% 53.0%
  
  [libx264 @ 0000001f60c5d900] mb I  I16..4: 14.0% 76.1%  9.9%
  
  [libx264 @ 0000001f60c5d900] mb P  I16..4:  2.5%  6.6%  0.4%  P16..4: 44.5% 10.8%  5.2%  0.0%  0.0%    skip:30.0%
  
  [libx264 @ 0000001f60c5d900] mb B  I16..4:  0.1%  0.3%  0.0%  B16..8: 32.1%  1.6%  0.2%  direct: 0.9%  skip:64.9%  L0:37.9% L1:58.7% BI: 3.5%
  
  [libx264 @ 0000001f60c5d900] final ratefactor: 23.25
  
  [libx264 @ 0000001f60c5d900] 8x8 transform intra:70.8% inter:85.8%
  
  [libx264 @ 0000001f60c5d900] coded y,uvDC,uvAC intra: 47.1% 56.6% 19.5% inter: 10.7% 14.2% 0.4%
  
  [libx264 @ 0000001f60c5d900] i16 v,h,dc,p: 46% 20%  8% 26%
  
  [libx264 @ 0000001f60c5d900] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 21% 17% 25%  5%  7%  7%  7%  6%  6%
  
  [libx264 @ 0000001f60c5d900] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 27% 20% 12%  5% 10%  9%  8%  5%  4%
  
  [libx264 @ 0000001f60c5d900] i8c dc,h,v,p: 58% 18% 18%  6%
  
  [libx264 @ 0000001f60c5d900] Weighted P-Frames: Y:1.4% UV:0.8%
  
  [libx264 @ 0000001f60c5d900] ref P L0: 62.6% 12.9% 18.9%  5.6%  0.1%
  
  [libx264 @ 0000001f60c5d900] ref B L0: 87.6% 11.0%  1.4%
  
  [libx264 @ 0000001f60c5d900] ref B L1: 94.6%  5.4%
  
  [libx264 @ 0000001f60c5d900] kb/s:1272.59
  
  [aac @ 0000001f60b52180] Qavg: 954.859

  Edit

  This has something to do with data, when I run this command (cut at 10 minutes)

  ffmpeg.exe -i CI.mp4 -ss 00:00:00 -t 00:08:00 -vcodec copy  -map_metadata 0 -acodec copy CI2.mp4

  Mediainfo shows

  Duration                    : 9mn 49s
  
  Source duration             : 2mn 40s

  When I run this one (18 minutes)

  ffmpeg.exe -i CI.mp4 -ss 00:00:00 -t 00:18:00 -vcodec copy  -map_metadata 0 -acodec copy CI2.mp4

  Mediainfo shows

  Duration                    : 17mn 49s
  
  Source duration             : 3mn 30s

  How can I edit the metadata directly

• FFMPEG creates incorrect Source duration

  4 août 2016, par Byron Whitlock

  When transcoding movies from an AVI to mp4 sometimes FFMPEG sets the "Source Duration" incorrectly.

  This messes up playback on IOS devices. Specifically, it causes the video to cut out at "Source duration" while the audio still plays.

  

  FFMPEG output transcode doesn’t’ show anything odd at all. Looks normal, no errors or warnings.

  • Can I force FFMPEG to never add the "Source Duration" metadata ?
  • How do I edit the track metadata shown by mediainfo ? I tried Mp4box, and a few others, but I can’t seem to figure out how to edit track level metadata.

  Thanks.

  Log is below.

  ffmpeg version N-77455-g4707497 Copyright (c) 2000-2015 the FFmpeg developers   built with gcc 5.2.0 (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-libdcadec --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-aacenc --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. 11.100 / 55. 11.100   libavcodec     57. 20.100 / 57. 20.100   libavformat    57. 20.100 / 57. 20.100   libavdevice    57.  0.100 / 57.  0.100   libavfilter     6. 21.101 / 
  
      6. 21.101   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 'E:\MEDIA\Central.Intelligence.2016.HC.HDRip.XviD.AC3-EVO\Central.Intelligence.2016.HC.HDRip.XviD.AC3-EVO.avi': Metadata:
  
          encoder         : VirtualDubMod 1.5.10.2 (build 2542/release)   Duration: 01:51:43.27, start: 0.000000, bitrate: 1765 kb/s
  
          Stream #0:0: Video: mpeg4 (Advanced Simple Profile) (XVID / 0x44495658), yuv420p, 720x304 [SAR 1:1 DAR 45:19], 1563 kb/s, 23.98 fps, 23.98 tbr, 23.98 tbn, 23.98 tbc
  
          Stream #0:1: Audio: ac3 ([0] [0][0] / 0x2000), 48000 Hz, stereo, fltp, 192 kb/s [libx264 @ 000000f3c80a0a80] using SAR=405/304 [libx264 @ 000000f3c80a0a80] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 AVX2 LZCNT BMI2 [libx264 @ 000000f3c80a0a80] profile High, level 3.1 [libx264 @ 000000f3c80a0a80] 264 - core 148 r2638 7599210 - H.264/MPEG-4 AVC codec - Copyleft 2003-2015 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=6 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=23 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=abr mbtree=1 bitrate=1280 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00 Output #0, mp4, to 'F:\STREAMS\Central.Intelligence.2016.HC.HDRip.XviD.AC3-EVO.avi.1280x720_1000kbps.TEMP.mp4': Metadata:
  
          encoder         : Lavf57.20.100
  
          Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 1280x720 [SAR 405:304 DAR 45:19], q=-1--1, 1280 kb/s, 23.98 fps, 10000k tbn, 23.98 tbc
  
          Metadata:
  
            encoder         : Lavc57.20.100 libx264
  
          Side data:
  
            unknown side data type 10 (24 bytes)
  
          Stream #0:1: Audio: aac ([64][0][0][0] / 0x0040), 44100 Hz, stereo, fltp, 160 kb/s
  
          Metadata:
  
            encoder         : Lavc57.20.100 aac Stream mapping:   Stream #0:0 -> #0:0 (mpeg4 (native) -> h264 (libx264))   Stream #0:1 -> #0:1 (ac3 (native) -> aac (native)) Press [q] to stop, [?] for help [mpeg4 @ 000000f3c80ae220] 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. 
  
  frame=   15 fps=0.0 q=0.0 size=       0kB time=00:00:01.18 bitrate=   0.3kbits/s dup=1 drop=0 speed=2.36x   
  
  --SNIP---
  
  frame=160704 fps= 16 q=30.0 size= 1180376kB time=01:51:43.08 bitrate=1442.6kbits/s dup=1 drop=0 speed=0.671x     
  
  [libx264 @ 0000001f60c5d900] frame I:1167  Avg QP:19.08  size: 44465
  
  [libx264 @ 0000001f60c5d900] frame P:63049 Avg QP:22.26  size: 12774
  
  [libx264 @ 0000001f60c5d900] frame B:110691 Avg QP:24.81  size:  2739
  
  [libx264 @ 0000001f60c5d900] consecutive B-frames:  6.0% 22.8% 18.3% 53.0%
  
  [libx264 @ 0000001f60c5d900] mb I  I16..4: 14.0% 76.1%  9.9%
  
  [libx264 @ 0000001f60c5d900] mb P  I16..4:  2.5%  6.6%  0.4%  P16..4: 44.5% 10.8%  5.2%  0.0%  0.0%    skip:30.0%
  
  [libx264 @ 0000001f60c5d900] mb B  I16..4:  0.1%  0.3%  0.0%  B16..8: 32.1%  1.6%  0.2%  direct: 0.9%  skip:64.9%  L0:37.9% L1:58.7% BI: 3.5%
  
  [libx264 @ 0000001f60c5d900] final ratefactor: 23.25
  
  [libx264 @ 0000001f60c5d900] 8x8 transform intra:70.8% inter:85.8%
  
  [libx264 @ 0000001f60c5d900] coded y,uvDC,uvAC intra: 47.1% 56.6% 19.5% inter: 10.7% 14.2% 0.4%
  
  [libx264 @ 0000001f60c5d900] i16 v,h,dc,p: 46% 20%  8% 26%
  
  [libx264 @ 0000001f60c5d900] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 21% 17% 25%  5%  7%  7%  7%  6%  6%
  
  [libx264 @ 0000001f60c5d900] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 27% 20% 12%  5% 10%  9%  8%  5%  4%
  
  [libx264 @ 0000001f60c5d900] i8c dc,h,v,p: 58% 18% 18%  6%
  
  [libx264 @ 0000001f60c5d900] Weighted P-Frames: Y:1.4% UV:0.8%
  
  [libx264 @ 0000001f60c5d900] ref P L0: 62.6% 12.9% 18.9%  5.6%  0.1%
  
  [libx264 @ 0000001f60c5d900] ref B L0: 87.6% 11.0%  1.4%
  
  [libx264 @ 0000001f60c5d900] ref B L1: 94.6%  5.4%
  
  [libx264 @ 0000001f60c5d900] kb/s:1272.59
  
  [aac @ 0000001f60b52180] Qavg: 954.859

  Edit

  This has something to do with data, when I run this command (cut at 10 minutes)

  ffmpeg.exe -i CI.mp4 -ss 00:00:00 -t 00:08:00 -vcodec copy  -map_metadata 0 -acodec copy CI2.mp4

  Mediainfo shows

  Duration                    : 9mn 49s
  
  Source duration             : 2mn 40s

  When I run this one (18 minutes)

  ffmpeg.exe -i CI.mp4 -ss 00:00:00 -t 00:18:00 -vcodec copy  -map_metadata 0 -acodec copy CI2.mp4

  Mediainfo shows

  Duration                    : 17mn 49s
  
  Source duration             : 3mn 30s

  How can I edit the metadata directly

• Secure and track every change to your Piwik installation with the Activity Log plugin

  14 novembre 2017, par InnoCraft — Plugins

  Are you wondering how your colleagues are using Piwik ? Would you like to know if an unauthorized user got an access to your installation ? Would you like to remember the last actions you performed in Piwik some weeks ago ? At InnoCraft, we developed a plugin called “Activity Log”. With this feature you can easily track and check all major changes to your Piwik websites, for example : user permissions, goals, and funnels. In this article we will show you the different ways you can use it and explain why it is an invaluable plugin.

  Activity log for better security

  The activity log feature has been designed for security. Also referred to as “audit logging” or “audit trail”, with this plugin you will be able to :

  1. detect any suspicious actions
  2. detect hacker attacks
  3. help identify performance problems
  4. see clearly who did what, and when
  5. find out how people are using Piwik within your company

  1 – detect any suspicious actions

  With audit trail you can easily identify if a former employee still has access to your Piwik installation. You will then be able to know when he accessed it for the last time, and what changes she or he performed. If you got hacked, you will be able to find out if the user created, changed, or deleted any website, goals, or did anything else suspicious.

  2 – detect hacker attacks

  When an unregistered user is trying to access your Piwik, each failed login attempt is registered within the Activity Log report.

  3 – help identify performance problems

  Activity Log can help you identify performance problems by registering the sequence of each major action a user performed. For example, if a user updated or installed a third party plugin, and suddenly Piwik is getting performance problems, then it is likely that the plugin update caused it.

  4 – see clearly who did what, and when

  It is always challenging in an organization to know who did what and when. With Activity Log, you will know who were the employee(s) that accessed Piwik, created, updated, or deleted a goal, a funnel, a scheduled report, and much more.

  5- find out how people are using Piwik within your company

  By having a look at how people are using Piwik you will have an overview of how your colleagues use Piwik. For example, you can see who is creating Custom segments to analyse the audience in more details, who is creating funnels to learn where your users drop off. You will then be able to identify who has the knowledge and who needs training.

  Did you know ?

  You can help the Piwik core team make Piwik even better by sharing anonymously how you use Piwik on a day to day basis. You just need to install the following plugin : http://plugins.piwik.org/AnonymousPiwikUsageMeasurement

  What’s in it ?

  Once downloaded and installed from the marketplace, you will be able to access the activity log from the admin panel within the diagnostic section :

  

  If you are logged as a super user administrator, you will get an overview and a detailed report about who accessed Piwik and which actions they performed.

  Those reports are critical as they allow the super user to :

  • ensure users are following all documented procedures within your organization such as naming conventions for reports, using the right settings when adding measurables…
  • identify suspicious behavior. As those reports are gathering all major Piwik users activities it is easy to identify non conventional behavior.
  • replay the sequence some users went through in order to fix any potential issues.

  Activity log view report you can access through the admin panel

  So you will see in a second if an unusual user got access to Piwik and the different actions the user performed.
  It is also a good way to see the features that your users are using and identify potential misuse.

  As a regular user or admin, activity log is providing only the historical actions that this user performed :

  

  Actions listed in the log include any changes (add, edit, delete) to the following features (this is a non exhaustive list) :

  • Annotation
  • Custom Alert
  • Custom Dimension
  • Goal
  • Privacy settings
  • Scheduled report
  • Segment
  • User
  • Website
  • …

  This is a ideal to remember the actions they previously performed some weeks/months ago.

  Where can I start from here ?

  Activity log is a premium feature you can acquire through the Piwik marketplace. If you want to experience it before purchasing it, you can try it for free on our cloud infrastructure.

  I want to try the Activity Log plugin

  Activity log is just one out of the many great premium features developed by InnoCraft, the company founded by the creators of Piwik. Discover all their special plugins through the premium marketplace.