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• What’s new in Piwik 2.16.0 ?

  1er février 2016, par Matthieu Aubry — About, Development, Uncategorized

  In this blog post we showcase what is new in Piwik 2.16.0 and why you should upgrade your Piwik to this latest release !

  Piwik 2.16.0 is currently in Release Candidate and you can already use it by following these simple instructions. Piwik 2.16.0 will be officially released in a few days.

  To see the list of all 250+ changes, read the Piwik 2.16.0 changelog.

  Long Term Support for Piwik 2.X

  Piwik 2.16.0 is our Long Term Support version for Piwik 2. Learn more about Piwik LTS.

  New : Custom Dimensions feature

  With Custom Dimensions you can assign any custom data to your visitors or actions (like pages, events, …) and then visualize the reports of how many visits, conversions, pageviews, etc. there were for each Custom Dimension. They are similar to Custom Variables see the comparison of Custom Dimensions and Custom Variables.

  The new Custom Dimensions plugin is available on the Piwik Marketplace.

  Learn more about creating, tracking, reporting, managing, segmenting custom dimensions in the Custom Dimensions user guide.

  

  

  

  View the list of all visitors who reached a specific goal

  All Goal reports now include a link below the Goal report summary, that lets you see in one click all users that have converted any of your Goals :

  

  Events reports : option to view all columns : min, max and avg values

  By default in Actions > Events report, the columns displayed are “Total events” (Total number of events) and “Total value” (the sum of event values). It is now possible to click on the footer icon to view more detailed columns about event values : minimum event value, maximum event value, and average event value.

  

  Allow zoom to country in realtime visitor map

  In the real time map in Piwik (which displays your users activity appearing in real time !), it is now possible to zoom on a given country :

  

  Export all Records : new ‘all’ option in the Row limit selector

  It is now possible to export all of the data in your reports directly from the user interface ! Select ‘all’ in the row limit selector before exporting your data reports :

  

  New themes on the Marketplace !

  Feel like a change of colors ? Try out the new community submitted Piwik Themes on the Marketplace ! Learn how to install a new theme in Piwik (in only a few clicks).

  

  Let Super User view and edit segments created by other users

  As a Super User of Piwik, it can be very useful to view all Custom Segments created by all users. Starting in Piwik 2.16.0 any Super User can now view all Segments for a given website in the Segment selector :

  • Segments that are shared with All users will now appear below a section “Shared with you :” (a segment can be shared to all users by any admin user by selecting “This segment is visible to All Users” in the Segment editor)
  • Segments that are not shared with anyone are now also visible under the section “Visible to you because you have Super User access :”

  

  New segment ‘deviceBrand’ to segment by Device Brand

  You can now segment by device brands such as Apple, Samsung, LG, Google, Nokia, Sony, Lenovo, Alcatel, etc. The complete list of device brands you can use is listed on the Segmentation developer guide.

  

  New segment ‘actionType’ to view only particular Actions types (pagesviews, downloads, outlinks, events…)

  Use the new “Action type” segment to view only particular actions such as : pageviews, contents, sitesearches, events, outlinks and downloads.

  

  New segment : ‘actionUrl’ to view any actions that matches a given URL

  Use the new “Action URL” segment to view any action that matches a given URL, whether they are Pageviews, Site searches, Contents, Downloads or Events.

  

  New segment operators : “Starts with” and “Ends with”

  The new segment operators “Starts with” and “Ends with” can come handy when creating Custom Segments, and complement well the existing segment operators : Contains, Does not contain, Equals, Not equals, Greater than or equal to, Less than or equal to.

  

  Learn more about Segmentation in our user guides or in the Segmentation developer guide.

  Making Piwik more accessible

  Web accessibility refers to the inclusive practice of removing barriers that prevent interaction with, or access to applications or websites, by people with disabilities. When sites are correctly designed, developed and edited, all users have equal access to information and functionality.

  In Piwik 2.16.0, and with the help of high school students from the Catalyst Academy, we have made several improvements that make Piwik more accessible :

  • Menu now include the ARIA metadata (to make menus easier to navigate and use)
  • Page titles and various key tooltips have been improved (to give a better context to the data)
  • Keyboard access has been much improvement and Piwik is starting to be usable with the keyboard ! (this is very useful as many users are not able to use a mouse, and they should be able to view Piwik reports with the keyboard only)
  • ‘Skip to main content’ link (when pressing the TAB key) now skips the cursor to the page content.
  • Search bar was further improved : try it by pressing the ‘f’ key (useful to open any Piwik report or page without using the mouse)

  New user preference : display times either as 24h format or AM/PM format

  Users can now select whether times should be displayed in 24h format (16:20) or in AM/PM format (4:20pm)

  

  Other admins and Super Users are not visible to users with ‘admin’ permissions anymore

  Piwik 2.16.0 just became even more respectful of your privacy : any user you created and assigned an “admin” permission will not be able to view all other usernames anymore. This change was requested by many Piwik users who rightfully preferred not to disclose all usernames to any ‘admin’ user.

  As a result of this change, when a user with ‘admin’ permission (admin user) wants to give additional permission to another user (target user), the admin user will now need to know the target username and enter it in the Manage Users interface :

  

  New Config file viewer

  A new menu entry Administration > Diagnostics > Config file, lets Super Users view all config values in the UI :

  This new screen serves several purposes :

  • help Piwik administrators discover and learn about all the possible config file settings that Piwik offers.
  • let Super Users and Admins easily view any overridden config.ini.php INI setting without having to open the config file on the server.

  

  New report ‘Personal settings > Custom Variables’ displays custom variable usage

  A new report visible to Super Users lets you see how your Custom Variables slots are being used, which ones are still unused, and how many times a given custom variable name was used.

  

  Learn more about Custom Variables.

  Improvements to Heartbeat feature to accurately count time spent on the last page

  The heartbeat feature which lets you accurately track how long do visitors spend on your website, has been improved in 2.16.0. If you would like to measure how long do people spend on your pages (even if they don’t interact with your website or app), then consider using the heartbeat feature. Learn more in our guide Accurately measure the time spent on each page.

  

  New AnonymousPiwikUsageMeasurement plugin
  

  AnonymousPiwikUsageMeasurement plugin was created for those who would like to measure how their Piwik services is being used. This plugin also sends anonymised tracking data to our demo-anonymous.piwik.org which will help us learn how your Piwik is used and how we could improve the application. Learn more about AnonymousPiwikUsageMeasurement plugin.

  

  Show a warning when Piwik is used as a SuperUser via HTTP

  It is highly recommended to use HTTPS (SSL) for your Piwik server. If you are logged in as a Super User and viewing any Administration pages, you will now see a warning notification message at the top of the screen inviting you to use HTTPS :

  

  MySQL 5.7+ support

  The awesome Piwik community has helped us identify several issues with MySQL 5.7 support and Piwik is now fully compatible with the latest MySQL version 5.7+. Piwik is officially compatible with MySQL >= 4.1 and up to Mysql 5.7 ! Piwik is also compatible with MariaDB.

  

  Better detection of new devices and robots

  Our Device Detector library can now detect many new types of devices : smart TVs, new tablets and mobile phones, and more. New bots were added to our list of bots to keep your analytics report meaningful.

  Learn more : What Device Detector is able to detect, About Device Detector.

  New Referrer Spammers

  Every week we keep updating our community-list of referrer spammers. More than 50 new spammers were added since the last Piwik release !

  Note that the list of referrer spammer is automatically updated every week in your Piwik, so you need to wait at most one week to benefit from the very latest list.

  Learn more about Stopping Referrer Spam in Analytics reports.

  

  Ability to support new SMS providers to send Scheduled Reports by text message

  When you create scheduled reports in Piwik, you can specify one or several email addresses (to send reports by email) and you can also configure phone numbers (so your reports are sent to your phone via text message). So far we only support one SMS Provider “Clockwork SMS” but it is now possible for anyone to create a very simple plugin that adds a new SMS Provider to Piwik.

  A new SMS Provider plugin was released on the Marketplace : FreeMobileMessaging. If you have a favorite SMS Provider, we encourage you to create a new plugin for it !

  Piwik Consulting mentions

  A few new mentions of Piwik Consultants were added into Piwik to let users know that they can get Professional Help, and additional services and products. For example a new widget was added to the default dashboard. If you provide your Piwik service to your own clients, maybe you would like to remove the Professional services widget and other ads, see this FAQ : How do I remove from Piwik the links to “Piwik Consultants” or to “Professional Services” ?

  Stability, Reliability and Performance

  Dozens of other bugs were fixed (including several Major bugs) and many small improvements are included in this release. All these changes make Piwik more stable and reliable, as well as easier to troubleshoot and maintain. We are proud to be able to offer Piwik 2.16.0 as our Long Term Support release !

  If you have any feedback, questions, suggestion, or bug to report, please join our Piwik Community Forums.

  We hope you will love this 2.16.0 release as much as we loved making it.

  Happy Analytics !

• ffmpeg wrong framerate when converting x264 to x265

  11 avril 2023, par Andreas

  I want to convert the video files from my Samsung phone to a more efficient format. Samsung uses x264 with a very high bitrate, instead I am using x265 with the following settings :

  


  ffmpeg -i IN.mp4 -c:v libx265 -c:a copy -x265-params crf=25 OUT.mp4


  


  However, there seems to be a problem with the framerate. Samsung specifies 60 fps in the metadata, but the video stream shows 29.95 fps.
If I use the above command to convert to x265, it even outputs a stream with 120 fps. ffmpeg also shows the warning "More than 1000 frames duplicated".

  


  How can I keep the original framerate ?

  


  Here is the ffmpeg output :

  


  ffmpeg -i IN.mp4 -c:v libx265 -c:a copy -x265-params crf=25 OUT.mp4
ffmpeg version N-110223-gb18a9c2971-20230410 Copyright (c) 2000-2023 the FFmpeg developers
  built with gcc 12.2.0 (crosstool-NG 1.25.0.152_89671bf)
  configuration: --prefix=/ffbuild/prefix --pkg-config-flags=--static --pkg-config=pkg-config --cross-prefix=x86_64-w64-mingw32- --arch=x86_64 --target-os=mingw32 --enable-gpl --enable-version3 --disable-debug --disable-w32threads --enable-pthreads --enable-iconv --enable-libxml2 --enable-zlib --enable-libfreetype --enable-libfribidi --enable-gmp --enable-lzma --enable-fontconfig --enable-libvorbis --enable-opencl --disable-libpulse --enable-libvmaf --disable-libxcb --disable-xlib --enable-amf --enable-libaom --enable-libaribb24 --enable-avisynth --enable-chromaprint --enable-libdav1d --enable-libdavs2 --disable-libfdk-aac --enable-ffnvcodec --enable-cuda-llvm --enable-frei0r --enable-libgme --enable-libkvazaar --enable-libass --enable-libbluray --enable-libjxl --enable-libmp3lame --enable-libopus --enable-librist --enable-libssh --enable-libtheora --enable-libvpx --enable-libwebp --enable-lv2 --disable-libmfx --enable-libvpl --enable-openal --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenh264 --enable-libopenjpeg --enable-libopenmpt --enable-librav1e --enable-librubberband --enable-schannel --enable-sdl2 --enable-libsoxr --enable-libsrt --enable-libsvtav1 --enable-libtwolame --enable-libuavs3d --disable-libdrm --disable-vaapi --enable-libvidstab --enable-vulkan --enable-libshaderc --enable-libplacebo --enable-libx264 --enable-libx265 --enable-libxavs2 --enable-libxvid --enable-libzimg --enable-libzvbi --extra-cflags=-DLIBTWOLAME_STATIC --extra-cxxflags= --extra-ldflags=-pthread --extra-ldexeflags= --extra-libs=-lgomp --extra-version=20230410
  libavutil      58.  6.100 / 58.  6.100
  libavcodec     60.  9.100 / 60.  9.100
  libavformat    60.  4.101 / 60.  4.101
  libavdevice    60.  2.100 / 60.  2.100
  libavfilter     9.  5.100 /  9.  5.100
  libswscale      7.  2.100 /  7.  2.100
  libswresample   4. 11.100 /  4. 11.100
  libpostproc    57.  2.100 / 57.  2.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'IN.mp4':
  Metadata:
    major_brand     : mp42
    minor_version   : 0
    compatible_brands: isommp42
    creation_time   : 2023-03-17T13:51:19.000000Z
    com.android.version: 13
    com.android.capture.fps: 60.000000
  Duration: 00:01:16.64, start: 0.000000, bitrate: 26864 kb/s
  Stream #0:0[0x1](eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709, progressive), 1920x1080, 26603 kb/s, 29.95 fps, 120 tbr, 90k tbn (default)
    Metadata:
      creation_time   : 2023-03-17T13:51:19.000000Z
      handler_name    : VideoHandle
      vendor_id       : [0][0][0][0]
  Stream #0:1[0x2](eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 256 kb/s (default)
    Metadata:
      creation_time   : 2023-03-17T13:51:19.000000Z
      handler_name    : SoundHandle
      vendor_id       : [0][0][0][0]
Stream mapping:
  Stream #0:0 -> #0:0 (h264 (native) -> hevc (libx265))
  Stream #0:1 -> #0:1 (copy)
Press [q] to stop, [?] for help
x265 [info]: HEVC encoder version 3.5+95-38cf1c379
x265 [info]: build info [Windows][GCC 12.2.0][64 bit] 8bit+10bit+12bit
x265 [info]: using cpu capabilities: MMX2 SSE2Fast LZCNT SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
x265 [info]: Main profile, Level-5 (Main tier)
x265 [info]: Thread pool created using 16 threads
x265 [info]: Slices                              : 1
x265 [info]: frame threads / pool features       : 4 / wpp(17 rows)
x265 [info]: Coding QT: max CU size, min CU size : 64 / 8
x265 [info]: Residual QT: max TU size, max depth : 32 / 1 inter / 1 intra
x265 [info]: ME / range / subpel / merge         : hex / 57 / 2 / 3
x265 [info]: Keyframe min / max / scenecut / bias  : 25 / 250 / 40 / 5.00
x265 [info]: Lookahead / bframes / badapt        : 20 / 4 / 2
x265 [info]: b-pyramid / weightp / weightb       : 1 / 1 / 0
x265 [info]: References / ref-limit  cu / depth  : 3 / off / on
x265 [info]: AQ: mode / str / qg-size / cu-tree  : 2 / 1.0 / 32 / 1
x265 [info]: Rate Control / qCompress            : CRF-25.0 / 0.60
x265 [info]: tools: rd=3 psy-rd=2.00 early-skip rskip mode=1 signhide tmvp
x265 [info]: tools: b-intra strong-intra-smoothing lslices=6 deblock sao
Output #0, mp4, to 'OUT.mp4':
  Metadata:
    major_brand     : mp42
    minor_version   : 0
    compatible_brands: isommp42
    com.android.capture.fps: 60.000000
    com.android.version: 13
    encoder         : Lavf60.4.101
  Stream #0:0(eng): Video: hevc (hev1 / 0x31766568), yuv420p(tv, bt709, progressive), 1920x1080, q=2-31, 120 fps, 15360 tbn (default)
    Metadata:
      creation_time   : 2023-03-17T13:51:19.000000Z
      handler_name    : VideoHandle
      vendor_id       : [0][0][0][0]
      encoder         : Lavc60.9.100 libx265
    Side data:
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A
  Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 256 kb/s (default)
    Metadata:
      creation_time   : 2023-03-17T13:51:19.000000Z
      handler_name    : SoundHandle
      vendor_id       : [0][0][0][0]
[vost#0:0/libx265 @ 00000249776f1440] More than 1000 frames duplicated40.0kbits/s dup=991 drop=0 speed=0.484x
frame= 9197 fps= 52 q=37.0 Lsize=   32338kB time=00:01:16.61 bitrate=3457.6kbits/s dup=6902 drop=0 speed=0.43x
video:29752kB audio:2393kB subtitle:0kB other streams:0kB global headers:2kB muxing overhead: 0.600966%
x265 [info]: frame I:     79, Avg QP:25.98  kb/s: 25459.52
x265 [info]: frame P:   2332, Avg QP:31.54  kb/s: 9763.15
x265 [info]: frame B:   6786, Avg QP:36.46  kb/s: 653.28
x265 [info]: Weighted P-Frames: Y:5.5% UV:5.3%

encoded 9197 frames in 177.98s (51.68 fps), 3176.26 kb/s, Avg QP:35.12


  


• The recorded video is distorted (FFMPEG)

  13 décembre 2017, par No Name

  The source is taken from here.

  I’m initializing this :

  private void initRecorder() {
  
      Log.i(LOG_TAG, "init mFrameRecorder");
  
  
  
      String recordedTime = new SimpleDateFormat("yyyyMMdd_HHmmss", Locale.getDefault())
  
              .format(new Date());
  
      mVideo = CameraHelper.getOutputMediaFile(recordedTime, CameraHelper.MEDIA_TYPE_VIDEO);
  
      Log.i(LOG_TAG, "Output Video: " + mVideo);
  
  
  
      mFrameRecorder = new FFmpegFrameRecorder(mVideo, videoWidth, videoHeight, 1);
  
      mFrameRecorder.setFormat("mp4");
  
      mFrameRecorder.setSampleRate(sampleAudioRateInHz);
  
      mFrameRecorder.setFrameRate(frameRate);
  
      // Use H264
  
      mFrameRecorder.setVideoCodec(avcodec.AV_CODEC_ID_H264);
  
      mFrameRecorder.setVideoQuality(2);
  
  
  
      mFrameRecorder.setVideoOption("crf", "20");
  
      mFrameRecorder.setVideoOption("preset", "superfast");
  
      mFrameRecorder.setVideoOption("tune", "zerolatency");
  
  
  
      Log.i(LOG_TAG, "mFrameRecorder initialize success");
  
  }

  where frameRate = 60 ;

  And video recording :

  class VideoRecordThread extends RunningThread {
  
      @Override
  
      public void run() {
  
          List<string> filters = new ArrayList&lt;>();
  
          // Transpose
  
          String transpose = null;
  
          android.hardware.Camera.CameraInfo info =
  
                  new android.hardware.Camera.CameraInfo();
  
          android.hardware.Camera.getCameraInfo(mCameraId, info);
  
          if (info.facing == Camera.CameraInfo.CAMERA_FACING_FRONT) {
  
              switch (info.orientation) {
  
                  case 270:
  
                      transpose = "transpose=cclock"; // Mirrored horizontally as preview display
  
                      break;
  
                  case 90:
  
                      transpose = "transpose=clock"; // Mirrored horizontally as preview display
  
                      break;
  
              }
  
          } else {
  
              switch (info.orientation) {
  
                  case 270:
  
                      transpose = "transpose=cclock";
  
                      break;
  
                  case 90:
  
                      transpose = "transpose=clock";
  
                      break;
  
              }
  
          }
  
          if (transpose != null) {
  
              filters.add(transpose);
  
          }
  
          // Crop (only vertically)
  
          int width = previewHeight;
  
          int height = width * videoHeight / videoWidth;
  
          String crop = String.format(Locale.getDefault(),"crop=%d:%d:%d:%d",
  
                  width, height,
  
                  (previewHeight - width) / 2, (previewWidth - height) / 2);
  
          filters.add(crop);
  
          // Scale (to designated size)
  
          String scale = String.format(Locale.getDefault(),"scale=%d:%d", videoHeight, videoWidth);
  
          filters.add(scale);
  
  
  
          FFmpegFrameFilter frameFilter = new FFmpegFrameFilter(TextUtils.join(",", filters),
  
                  previewWidth, previewHeight);
  
          frameFilter.setPixelFormat(avutil.AV_PIX_FMT_NV21);
  
          frameFilter.setFrameRate(frameRate);
  
          try {
  
              frameFilter.start();
  
          } catch (FrameFilter.Exception e) {
  
              e.printStackTrace();
  
          }
  
  
  
          isRunning = true;
  
          FrameToRecord recordedFrame;
  
  
  
          while (isRunning || !mFrameToRecordQueue.isEmpty()) {
  
              try {
  
                  recordedFrame = mFrameToRecordQueue.take();
  
              } catch (InterruptedException ie) {
  
                  ie.printStackTrace();
  
                  try {
  
                      frameFilter.stop();
  
                  } catch (FrameFilter.Exception e) {
  
                      e.printStackTrace();
  
                  }
  
                  break;
  
              }
  
  
  
              if (mFrameRecorder != null) {
  
                  long timestamp = recordedFrame.getTimestamp();
  
                  if (timestamp > mFrameRecorder.getTimestamp()) {
  
                      mFrameRecorder.setTimestamp(timestamp);
  
                  }
  
                  long startTime = System.currentTimeMillis();
  
                  Frame filteredFrame = null;
  
                  try {
  
                      frameFilter.push(recordedFrame.getFrame());
  
                      filteredFrame = frameFilter.pull();
  
                  } catch (FrameFilter.Exception e) {
  
                      e.printStackTrace();
  
                  }
  
                  try {
  
                      mFrameRecorder.record(filteredFrame);
  
                  } catch (FFmpegFrameRecorder.Exception e) {
  
                      e.printStackTrace();
  
                  }
  
                  long endTime = System.currentTimeMillis();
  
                  long processTime = endTime - startTime;
  
                  mTotalProcessFrameTime += processTime;
  
                  Log.d(LOG_TAG, "This frame process time: " + processTime + "ms");
  
                  long totalAvg = mTotalProcessFrameTime / ++mFrameRecordedCount;
  
                  Log.d(LOG_TAG, "Avg frame process time: " + totalAvg + "ms");
  
  
  
  
  
              }
  
              Log.d(LOG_TAG, mFrameRecordedCount + " / " + mFrameToRecordCount);
  
              mRecycledFrameQueue.offer(recordedFrame);
  
          }
  
      }
  
  
  
      public void stopRunning() {
  
          super.stopRunning();
  
          if (getState() == WAITING) {
  
              interrupt();
  
          }
  
      }
  
  }
  
  </string>

  The fact is that when recording video no lags(freezes) are not noticeable. After recording the video, when you look carefully, the lags are noticeable, and if you move the phone quickly when recording, then after the recording you can see the freezes, as if you have glued several GIFs.

  I tried everything I could : the frame rate changed for 30, 60, 100. I changed the Video quality, pixelFormat (although I do not know why) and many things that

  I did not understand. But still no use. Maybe there is someone who understands. Tell me how to correct these distortions(freezes) ?

  UPD : LogCat :

  > 12-13 08:51:21.987 2968-2968/io.dev.videosample
  
  > D/FFmpegRecordActivity: Preview frame interval: 98ms
  
  > 12-13 08:51:22.056 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 69ms
  
  > 12-13 08:51:22.137 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 81ms
  
  >12-13 08:51:22.205 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 68ms
  
  >12-13 08:51:22.254 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 49ms
  
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  >12-13 08:51:22.454 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 118ms
  
  >12-13 08:51:22.494 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 40ms
  
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  >12-13 08:51:22.983 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 81ms
  
  >12-13 08:51:23.070 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 87ms
  
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  >12-13 08:51:23.234 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 86ms
  
  >12-13 08:51:23.312 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 78ms
  
  >12-13 08:51:23.395 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 83ms
  
  >12-13 08:51:23.472 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 77ms
  
  >12-13 08:51:23.540 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 67ms
  
  >12-13 08:51:23.627 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 88ms
  
  >12-13 08:51:23.660 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 33ms
  
  >12-13 08:51:23.727 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 67ms
  
  >12-13 08:51:23.792 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 65ms
  
  >12-13 08:51:23.874 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 82ms
  
  >12-13 08:51:23.942 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 68ms
  
  >12-13 08:51:23.995 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 53ms
  
  >12-13 08:51:24.090 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 95ms
  
  >12-13 08:51:24.139 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 49ms
  
  >12-13 08:51:24.224 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 85ms
  
  >12-13 08:51:24.272 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 48ms
  
  >12-13 08:51:24.307 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 35ms
  
  >12-13 08:51:24.371 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 64ms
  
  >12-13 08:51:24.437 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 66ms
  
  >12-13 08:51:24.521 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 84ms
  
  >12-13 08:51:24.587 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 66ms
  
  >12-13 08:51:24.636 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 49ms
  
  >12-13 08:51:24.719 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 83ms
  
  >12-13 08:51:24.808 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 89ms
  
  >12-13 08:51:24.869 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 61ms
  
  >12-13 08:51:24.905 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 36ms
  
  >12-13 08:51:24.952 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 46ms
  
  >12-13 08:51:25.017 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 66ms
  
  >12-13 08:51:25.068 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 51ms
  
  >12-13 08:51:25.102 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 34ms
  
  >12-13 08:51:25.204 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 102ms
  
  >12-13 08:51:25.299 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 95ms
  
  >12-13 08:51:25.413 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 114ms
  
  >12-13 08:51:25.481 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 68ms
  
  >12-13 08:51:25.563 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 82ms
  
  >12-13 08:51:25.630 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 67ms
  
  >12-13 08:51:25.712 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 82ms
  
  >12-13 08:51:25.761 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 49ms
  
  >12-13 08:51:25.844 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 83ms
  
  >12-13 08:51:25.862 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 18ms
  
  >12-13 08:51:25.910 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 48ms
  
  >12-13 08:51:25.946 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 36ms
  
  >12-13 08:51:26.033 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 87ms
  
  >12-13 08:51:26.126 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 93ms
  
  >12-13 08:51:26.192 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 66ms
  
  >12-13 08:51:26.225 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 33ms
  
  >12-13 08:51:26.275 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 50ms
  
  >12-13 08:51:26.357 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 82ms
  
  >12-13 08:51:26.440 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 83ms
  
  >12-13 08:51:26.522 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 82ms
  
  >12-13 08:51:26.589 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 67ms
  
  >12-13 08:51:26.640 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 50ms
  
  >12-13 08:51:26.721 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 82ms
  
  >12-13 08:51:26.826 2968-2968/io.dev.videosample D/FFmpegRecordActivity: Preview frame interval: 105ms
  
  >12-13 08:51:28.408 1976-4266/? E/VDO_LOG: u4FrameTsInterval value is 0x411a, u4FrameTimingInfo 0xf000
  
  >12-13 08:51:28.421 1976-4266/? E/MtkOmxVdecEx: [0xb872bb60] ERROR: query VDEC_DRV_GET_TYPE_GET_FRAME_INTERVAL failed