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• ffmpeg-mp4box-mpeg dash plays only few segments

  30 octobre 2015, par Idris

  Need help in debugging the segment dash files

  The input was an MP4 with these details. This was recorded from a video camera, the output from the camera was mkv and we converted into MP4 after editing the audio via adobe

  • Size : 7.51 GB Frame rate : 25 frames/ second
  • Data rate : 25326kbps
  • Total bitrate : 25525kbps

  Converted this to another mp4 with this command

  ffmpeg -i "input.mp4" -s 1280x720 -c:v libx264 -b:v 750k -bf 2 -g 75 -sc_threshold 0 -an video_1280x720_750k.mp4
  
  
  
  ffmpeg -i "input.mp4"  -c:a aac -strict experimental -b:a 96k -ar 32000 -vn audio_96k.mp4

  The output video has

  • fps : 25
  • Data rate : 761kbps
  • bitrate : 761kbps

  Then, created the segmented dash through MP4Box

  MP4Box -dash 10000 -frag 10000 -rap -segment-name video_0_1280000\segment_ video_1280x720_750k.mp4
  
  
  
  MP4Box -dash 3000 -frag 10000 -rap -segment-name audio_0_96000\segment_ audio_96k.mp4

  The MPD generated was validated online and its perfect

  UPDATE ! Included the MPD file

  <?xml version="1.0"?>
  
  
  
  <mpd xmlns="urn:mpeg:dash:schema:mpd:2011" minbuffertime="PT1.500S" type="static" mediapresentationduration="PT0H2M0.000S" maxsegmentduration="PT0H0M10.000S" profiles="urn:mpeg:dash:profile:full:2011">
  
   <programinformation moreinformationurl="http://gpac.sourceforge.net">
  
    
  
   </programinformation>
  
  
  
   <period duration="PT0H2M0.000S">
  
     <adaptationset segmentalignment="true" lang="eng">
  
       <representation mimetype="audio/mp4" codecs="mp4a.40.2" audiosamplingrate="32000" startwithsap="1" bandwidth="98434">
  
         <audiochannelconfiguration schemeiduri="urn:mpeg:dash:23003:3:audio_channel_configuration:2011" value="2"></audiochannelconfiguration>
  
         <segmentlist timescale="32000" duration="319999">
  
           <initialization sourceurl="audio_0_96000/segment_init.mp4"></initialization>
  
           <segmenturl media="audio_0_96000/segment_1.m4s"></segmenturl>
  
           <segmenturl media="audio_0_96000/segment_2.m4s"></segmenturl>
  
           <segmenturl media="audio_0_96000/segment_3.m4s"></segmenturl>
  
           <segmenturl media="audio_0_96000/segment_4.m4s"></segmenturl>
  
           <segmenturl media="audio_0_96000/segment_5.m4s"></segmenturl>
  
           <segmenturl media="audio_0_96000/segment_6.m4s"></segmenturl>
  
           <segmenturl media="audio_0_96000/segment_7.m4s"></segmenturl>
  
           <segmenturl media="audio_0_96000/segment_8.m4s"></segmenturl>
  
           <segmenturl media="audio_0_96000/segment_9.m4s"></segmenturl>
  
           <segmenturl media="audio_0_96000/segment_10.m4s"></segmenturl>
  
           <segmenturl media="audio_0_96000/segment_11.m4s"></segmenturl>
  
           <segmenturl media="audio_0_96000/segment_12.m4s"></segmenturl>
  
           <segmenturl media="audio_0_96000/segment_13.m4s"></segmenturl>
  
         </segmentlist>
  
       </representation>
  
     </adaptationset>
  
    <adaptationset segmentalignment="true" maxwidth="1280" maxheight="720" maxframerate="25" par="16:9" lang="eng">
  
     <representation mimetype="video/mp4" codecs="avc3.64001f" width="1280" height="720" framerate="25" sar="1:1" startwithsap="1" bandwidth="764668">
  
      <segmentlist timescale="12800" duration="125866">
  
       <initialization sourceurl="video_0_1280000/segment_init.mp4"></initialization>
  
       <segmenturl media="video_0_1280000/segment_1.m4s"></segmenturl>
  
       <segmenturl media="video_0_1280000/segment_2.m4s"></segmenturl>
  
       <segmenturl media="video_0_1280000/segment_3.m4s"></segmenturl>
  
       <segmenturl media="video_0_1280000/segment_4.m4s"></segmenturl>
  
       <segmenturl media="video_0_1280000/segment_5.m4s"></segmenturl>
  
       <segmenturl media="video_0_1280000/segment_6.m4s"></segmenturl>
  
       <segmenturl media="video_0_1280000/segment_7.m4s"></segmenturl>
  
       <segmenturl media="video_0_1280000/segment_8.m4s"></segmenturl>
  
       <segmenturl media="video_0_1280000/segment_9.m4s"></segmenturl>
  
       <segmenturl media="video_0_1280000/segment_10.m4s"></segmenturl>
  
       <segmenturl media="video_0_1280000/segment_11.m4s"></segmenturl>
  
       <segmenturl media="video_0_1280000/segment_12.m4s"></segmenturl>
  
       <segmenturl media="video_0_1280000/segment_13.m4s"></segmenturl>
  
      </segmentlist>
  
     </representation>
  
    </adaptationset>
  
  
  
   </period>
  
  </mpd>

  Played the video through dashjs.. I believe it just plays the initial segment and errors out as MEDIA_ERR_DECODE..MEDIA_ERR_SRC_NOT_SUPPORTED.. or some message which says start not found..

  Through chrome debugging I see that atleast 4 segments are correctly loading.. I am not sure whats going on..

  Any help in debugging the issue is really appreciated. I really can’t understand if this is a problem with the file or ffmpeg or mp4box or chrome.

  Output from chrome debugging tool

  [dash.js 1.5.1] new MediaPlayer instance has been created 
  
  dash.all.js:11 Playback initiated! 
  
  dash.all.js:11 Parsing complete: ( xml2json: 5ms, objectiron: 10ms, total: 0.015s) 
  
  dash.all.js:11 Manifest has been refreshed at Mon Oct 26 2015 10:19:22 GMT-0400 (Eastern Daylight Time)[1445869162092]  
  
  dash.all.js:11 SegmentTimeline detected using calculated Live Edge Time 
  
  dash.all.js:11 MediaSource is open! 
  
  dash.all.js:11 [object Event] 
  
  dash.all.js:11 Duration successfully set to: 120 
  
  dash.all.js:11 Added 0 inline events 
  
  dash.all.js:11 video codec: video/mp4;codecs="avc3.64001f" 
  
  dash.all.js:11 [video] stop 
  
  dash.all.js:11 audio codec: audio/mp4;codecs="mp4a.40.2" 
  
  dash.all.js:11 [audio] stop 
  
  dash.all.js:11 No text data. 
  
  dash.all.js:11 No fragmentedText data. 
  
  dash.all.js:11 No muxed data. 
  
  dash.all.js:11 [video] start 
  
  dash.all.js:11 [video] Getting the request for time: 0 
  
  dash.all.js:11 [video] Index for time 0 is 0 
  
  dash.all.js:11 [video] SegmentList: 0 / 120 
  
  dash.all.js:11 [audio] start 
  
  dash.all.js:11 [audio] Getting the request for time: 0 
  
  dash.all.js:11 [audio] Index for time 0 is 0 
  
  dash.all.js:11 [audio] SegmentList: 0 / 120 
  
  dash.all.js:11 [video] Getting the request for time: 9.83328125 
  
  dash.all.js:11 [video] Index for time 9.83328125 is 0 
  
  dash.all.js:11 [video] SegmentList: 0 / 120 
  
  dash.all.js:11 [video] SegmentList: 9.83328125 / 120 
  
  dash.all.js:11 [audio] Getting the request for time: 9.99996875 
  
  dash.all.js:11 [audio] Index for time 9.99996875 is 0 
  
  dash.all.js:11 [audio] SegmentList: 0 / 120 
  
  dash.all.js:11 [audio] SegmentList: 9.99996875 / 120 
  
  dash.all.js:11 loaded audio:Media Segment:0 (200, 20ms, 6ms) 
  
  dash.all.js:11 loaded video:Media Segment:0 (200, 153ms, 43ms) 
  
  dash.all.js:11 loaded video:Initialization Segment:NaN (200, 0ms, 32ms) 
  
  dash.all.js:11 [video] Initialization finished loading 
  
  dash.all.js:11 loaded audio:Initialization Segment:NaN (200, 0ms, 34ms) 
  
  dash.all.js:11 [audio] Initialization finished loading 
  
  dash.all.js:11 [video] Getting the request for time: 19.6665625 
  
  dash.all.js:11 [video] Index for time 19.6665625 is 1 
  
  dash.all.js:11 [video] SegmentList: 9.83328125 / 120 
  
  dash.all.js:11 [video] SegmentList: 19.6665625 / 120 
  
  dash.all.js:11 [audio] Getting the request for time: 19.9999375 
  
  dash.all.js:11 [audio] Index for time 19.9999375 is 1 
  
  dash.all.js:11 [audio] SegmentList: 9.99996875 / 120 
  
  dash.all.js:11 [audio] SegmentList: 19.9999375 / 120 
  
  dash.all.js:11 [video] Stalling Buffer 
  
  dash.all.js:11 [video] Waiting for more buffer before starting playback. 
  
  dash.all.js:11 [video] Getting the request for time: 0 
  
  dash.all.js:11 [video] Index for time 0 is 0 
  
  dash.all.js:11 [audio] Stalling Buffer 
  
  dash.all.js:11 [audio] Waiting for more buffer before starting playback. 
  
  dash.all.js:11 [audio] Getting the request for time: 0 
  
  dash.all.js:11 [audio] Index for time 0 is 0 
  
  dash.all.js:11 <video> loadedmetadata 
  
  dash.all.js:11 Starting playback at offset: 0 
  
  dash.all.js:11 [video] Getting the request for time: 29.499843750000004 
  
  dash.all.js:11 [video] Index for time 29.499843750000004 is 2 
  
  dash.all.js:11 [video] SegmentList: 19.6665625 / 120 
  
  dash.all.js:11 [video] SegmentList: 29.499843750000004 / 120 
  
  dash.all.js:11 [video] Got enough buffer to start. 
  
  dash.all.js:11 [video] seek: 0 
  
  dash.all.js:11 [audio] Getting the request for time: 29.999906250000002 
  
  dash.all.js:11 [audio] Index for time 29.999906250000002 is 2 
  
  dash.all.js:11 [audio] SegmentList: 19.9999375 / 120 
  
  dash.all.js:11 [audio] SegmentList: 29.999906250000002 / 120 
  
  dash.all.js:11 [audio] Got enough buffer to start. 
  
  dash.all.js:11 [audio] seek: 0 
  
  dash.all.js:11 loaded audio:Media Segment:9.99996875 (200, 67ms, 24ms) 
  
  dash.all.js:11 loaded video:Media Segment:9.83328125 (200, 71ms, 31ms) 
  
  dash.all.js:11 [audio] Buffered Range: 0.032 - 9.984 
  
  dash.all.js:11 [audio] Getting the request for time: 0 
  
  dash.all.js:11 [audio] Index for time 0 is 0 
  
  dash.all.js:11 Start Event Controller 
  
  dash.all.js:11 [audio] Buffered Range: 0.032 - 19.999968 
  
  dash.all.js:11 [audio] Getting the request for time: 0 
  
  dash.all.js:11 [audio] Index for time 0 is 0 
  
  dash.all.js:11 <video> play 
  
  dash.all.js:11 [video] start 
  
  dash.all.js:11 [video] Getting the request for time: 0 
  
  dash.all.js:11 [video] Index for time 0 is 0 
  
  dash.all.js:11 [video] SegmentList: 0 / 120 
  
  dash.all.js:11 [video] SegmentList: 9.83328125 / 120 
  
  dash.all.js:11 [video] SegmentList: 19.6665625 / 120 
  
  dash.all.js:11 [audio] start 
  
  dash.all.js:11 <video> playing 
  
  dash.all.js:11 [video] Buffered Range: 0 - 9 
  
  dash.all.js:11 [video] Getting the request for time: 0 
  
  dash.all.js:11 [video] Index for time 0 is 0 
  
  dash.all.js:11 Do seek: 0.032 
  
  dash.all.js:11 <video> seek 
  
  dash.all.js:11 [video] Getting the request for time: 29.499843750000004 
  
  dash.all.js:11 [video] Index for time 29.499843750000004 is 2 
  
  dash.all.js:11 [video] SegmentList: 19.6665625 / 120 
  
  dash.all.js:11 [video] SegmentList: 29.499843750000004 / 120 
  
  dash.all.js:11 [video] seek: 0.032 
  
  dash.all.js:11 [audio] seek: 0.032 
  
  dash.all.js:11 [video] Getting the request for time: 9 
  
  dash.all.js:11 [video] Index for time 9 is 0 
  
  dash.all.js:11 [video] SegmentList: 0 / 120 
  
  dash.all.js:11 [video] SegmentList: 9.83328125 / 120 
  
  dash.all.js:11 [video] SegmentList: 19.6665625 / 120 
  
  dash.all.js:11 [video] SegmentList: 29.499843750000004 / 120 
  
  dash.all.js:11 [video] Buffered Range: 0 - 18 
  
  dash.all.js:11 [video] Getting the request for time: 0 
  
  dash.all.js:11 [video] Index for time 0 is 0 
  
  dash.all.js:11 loaded video:Media Segment:19.6665625 (200, 42ms, 33ms) 
  
  dash.all.js:11 <video> seeked 
  
  dash.all.js:11 Start Event Controller 
  
  dash.all.js:11 <video> playing 
  
  dash.all.js:11 [video] Buffered Range: 0 - 28 
  
  dash.all.js:11 [video] Getting the request for time: 0 
  
  dash.all.js:11 [video] Index for time 0 is 0 
  
  dash.all.js:11 [audio] Getting the request for time: 19.999968 
  
  dash.all.js:11 [audio] Index for time 19.999968 is 1 
  
  dash.all.js:11 [audio] SegmentList: 9.99996875 / 120 
  
  dash.all.js:11 [audio] SegmentList: 19.9999375 / 120 
  
  dash.all.js:11 [audio] Getting the request for time: 29.999906250000002 
  
  dash.all.js:11 [audio] Index for time 29.999906250000002 is 2 
  
  dash.all.js:11 [audio] SegmentList: 19.9999375 / 120 
  
  dash.all.js:11 [audio] SegmentList: 29.999906250000002 / 120 
  
  dash.all.js:11 loaded audio:Media Segment:19.9999375 (200, 102ms, 2ms) 
  
  dash.all.js:11 [audio] Buffered Range: 0.032 - 29.983968 
  
  dash.all.js:11 [audio] Getting the request for time: 0 
  
  dash.all.js:11 [audio] Index for time 0 is 0 
  
  dash.all.js:11 loaded audio:Media Segment:29.999906250000002 (200, 26ms, 2ms) 
  
  dash.all.js:11 [audio] Buffered Range: 0.032 - 39.999968 
  
  dash.all.js:11 [audio] Getting the request for time: 0 
  
  dash.all.js:11 [audio] Index for time 0 is 0 
  
  dash.all.js:11 loaded video:Media Segment:29.499843750000004 (200, 47ms, 7ms) 
  
  dash.all.js:11 Video Element Error: MEDIA_ERR_DECODE 
  
  dash.all.js:11 [video] stop 
  
  dash.all.js:11 [audio] stop 
  
  dash.all.js:11 Video Element Error: MEDIA_ERR_SRC_NOT_SUPPORTED 
  
  dash.all.js:11 <video> play 
  
  </video></video></video></video></video></video></video>

• My journey to Coviu

  27 octobre 2015, par silvia

  My new startup just released our MVP – this is the story of what got me here.

  I love creating new applications that let people do their work better or in a manner that wasn’t possible before.

  My first such passion was as a student intern when I built a system for a building and loan association’s monthly customer magazine. The group I worked with was managing their advertiser contacts through a set of paper cards and I wrote a dBase based system (yes, that long ago) that would manage their customer relationships. They loved it – until it got replaced by an SAP system that cost 100 times what I cost them, had really poor UX, and only gave them half the functionality. It was a corporate system with ongoing support, which made all the difference to them.

  The story repeated itself with a CRM for my Uncle’s construction company, and with a resume and quotation management system for Accenture right after Uni, both of which I left behind when I decided to go into research.

  Even as a PhD student, I never lost sight of challenges that people were facing and wanted to develop technology to overcome problems. The aim of my PhD thesis was to prepare for the oncoming onslaught of audio and video on the Internet (yes, this was 1994 !) by developing algorithms to automatically extract and locate information in such files, which would enable users to structure, index and search such content.

  Many of the use cases that we explored are now part of products or continue to be challenges : finding music that matches your preferences, identifying music or video pieces e.g. to count ads on the radio or to mark copyright infringement, or the automated creation of video summaries such as trailers.

  

  This continued when I joined the CSIRO in Australia – I was working on segmenting speech into words or talk spurts since that would simplify captioning & subtitling, and on MPEG-7 which was a (slightly over-engineered) standard to structure metadata about audio and video.

  In 2001 I had the idea of replicating the Web for videos : i.e. creating hyperlinked and searchable video-only experiences. We called it “Annodex” for annotated and indexed video and it needed full-screen hyperlinked video in browsers – man were we ahead of our time ! It was my first step into standards, got several IETF RFCs to my name, and started my involvement with open codecs through Xiph.

  Around the time that YouTube was founded in 2006, I founded Vquence – originally a video search company for the Web, but pivoted to a video metadata mining company. Vquence still exists and continues to sell its data to channel partners, but it lacks the user impact that has always driven my work.

  As the video element started being developed for HTML5, I had to get involved. I contributed many use cases to the W3C, became a co-editor of the HTML5 spec and focused on video captioning with WebVTT while contracting to Mozilla and later to Google. We made huge progress and today the technology exists to publish video on the Web with captions, making the Web more inclusive for everybody. I contributed code to YouTube and Google Chrome, but was keen to make a bigger impact again.

  The opportunity came when a couple of former CSIRO colleagues who now worked for NICTA approached me to get me interested in addressing new use cases for video conferencing in the context of WebRTC. We worked on a kiosk-style solution to service delivery for large service organisations, particularly targeting government. The emerging WebRTC standard posed many technical challenges that we addressed by building rtc.io , by contributing to the standards, and registering bugs on the browsers.

  Fast-forward through the development of a few further custom solutions for customers in health and education and we are starting to see patterns of need emerge. The core learning that we’ve come away with is that to get things done, you have to go beyond “talking heads” in a video call. It’s not just about seeing the other person, but much more about having a shared view of the things that need to be worked on and a shared way of interacting with them. Also, we learnt that the things that are being worked on are quite varied and may include multiple input cameras, digital documents, Web pages, applications, device data, controls, forms.

  So we set out to build a solution that would enable productive remote collaboration to take place. It would need to provide an excellent user experience, it would need to be simple to work with, provide for the standard use cases out of the box, yet be architected to be extensible for specialised data sharing needs that we knew some of our customers had. It would need to be usable directly on Coviu.com, but also able to integrate with specialised applications that some of our customers were already using, such as the applications that they spend most of their time in (CRMs, practice management systems, learning management systems, team chat systems). It would need to require our customers to sign up, yet their clients to join a call without sign-up.

  Collaboration is a big problem. People are continuing to get more comfortable with technology and are less and less inclined to travel distances just to get a service done. In a country as large as Australia, where 12% of the population lives in rural and remote areas, people may not even be able to travel distances, particularly to receive or provide recurring or specialised services, or to achieve work/life balance. To make the world a global village, we need to be able to work together better remotely.

  The need for collaboration is being recognised by specialised Web applications already, such as the LiveShare feature of Invision for Designers, Codassium for pair programming, or the recently announced Dropbox Paper. Few go all the way to video – WebRTC is still regarded as a complicated feature to support.

  

  With Coviu, we’d like to offer a collaboration feature to every Web app. We now have a Web app that provides a modern and beautifully designed collaboration interface. To enable other Web apps to integrate it, we are now developing an API. Integration may entail customisation of the data sharing part of Coviu – something Coviu has been designed for. How to replicate the data and keep it consistent when people collaborate remotely – that is where Coviu makes a difference.

  We have started our journey and have just launched free signup to the Coviu base product, which allows individuals to own their own “room” (i.e. a fixed URL) in which to collaborate with others. A huge shout out goes to everyone in the Coviu team – a pretty amazing group of people – who have turned the app from an idea to reality. You are all awesome !

  With Coviu you can share and annotate :

  • images (show your mum photos of your last holidays, or get feedback on an architecture diagram from a customer),
  • pdf files (give a presentation remotely, or walk a customer through a contract),
  • whiteboards (brainstorm with a colleague), and
  • share an application window (watch a YouTube video together, or work through your task list with your colleagues).

  All of these are regarded as “shared documents” in Coviu and thus have zooming and annotations features and are listed in a document tray for ease of navigation.

  This is just the beginning of how we want to make working together online more productive. Give it a go and let us know what you think.

  http://coviu.com/

• FFMPEG gets stuck on higher resolution or frame rate [H265]

  29 octobre 2015, par Anakooter

  I am running the following command which works perfectly on my system running Elementary OS on Intel Corei5 :

  ffmpeg -f v4l2 -i /dev/video0 -c:v libx265 -x265-params crf=14:vbv-maxrate=128:vbv-bufsize=32:keyint=10:qcomp=0.5:rd=5:ctu=64:min-cu-size=8:cu-lossless=false:fast-intra=false:strong-intra-smoothing=false -tune zerolatency -s 640x480 -preset ultrafast -r 5 -pix_fmt yuv420p -an -strict experimental -f mpegts udp://239.0.0.1:5002

  but if I change the output size to 800x600 and or increase the frame rate from 5 to 10. After a few seconds the video gets stuck.

  I have monitored the CPU usage for both the commands and it is almost identical that is between 300 to 400 percent ( since 4 cores ).

  Any possible answers to mitigate the issue.

  ffmpeg version 2.7.2-static http://johnvansickle.com/ffmpeg/  Copyright (c) 2000-2015 the FFmpeg developers
  
  built with gcc 4.9.3 (Debian 4.9.3-1)
  
  configuration: --enable-gpl --enable-version3 --disable-shared --disable-debug --enable-runtime-cpudetect --enable-libmp3lame --enable-libx264 --enable-libx265 --enable-libwebp --enable-libspeex --enable-libvorbis --enable-libvpx --enable-libfreetype --enable-fontconfig --enable-libxvid --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libtheora --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-gray --enable-libopenjpeg --enable-libopus --enable-libass --enable-gnutls --enable-libvidstab --enable-libsoxr --cc=gcc-4.9
  
  libavutil      54. 27.100 / 54. 27.100
  
  libavcodec     56. 41.100 / 56. 41.100
  
  libavformat    56. 36.100 / 56. 36.100
  
  libavdevice    56.  4.100 / 56.  4.100
  
  libavfilter     5. 16.101 /  5. 16.101
  
  libswscale      3.  1.101 /  3.  1.101
  
  libswresample   1.  2.100 /  1.  2.100
  
  libpostproc    53.  3.100 / 53.  3.100
  
  Routing option strict to both codec and muxer layer
  
  [video4linux2,v4l2 @ 0x4775460] fd:4 capabilities:84000001
  
  Input #0, video4linux2,v4l2, from '/dev/video0':
  
  Duration: N/A, start: 1223.904801, bitrate: 36864 kb/s
  
  Stream #0:0: Video: rawvideo, 1 reference frame (YUY2 / 0x32595559), yuyv422, 320x240, 36864 kb/s, 30 fps, 30 tbr, 1000k tbn, 1000k tbc
  
  [graph 0 input from stream 0:0 @ 0x476aae0] w:320 h:240 pixfmt:yuyv422     tb:1/1000000 fr:30/1 sar:0/1 sws_param:flags=2
  
  [scaler for output stream 0:0 @ 0x476a920] w:800 h:600 flags:'0x4' interl:0
  
  [scaler for output stream 0:0 @ 0x476a920] w:320 h:240 fmt:yuyv422 sar:0/1 -> w:800 h:600 fmt:yuv420p sar:0/1 flags:0x4
  
  x265 [info]: HEVC encoder version 1.7+354-b2ba7df1fc69
  
  x265 [info]: build info [Linux][GCC 4.9.3][64 bit] 8bit
  
  x265 [info]: using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
  
  x265 [info]: Main profile, Level-3 (Main tier)
  
  x265 [info]: Thread pool created using 4 threads
  
  x265 [info]: frame threads / pool features       : 2 / wpp(10 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         : dia / 57 / 0 / 2
  
  x265 [info]: Keyframe min / max / scenecut       : 1 / 10 / 0
  
  x265 [info]: Lookahead / bframes / badapt        : 0 / 0 / 0
  
  x265 [info]: b-pyramid / weightp / weightb       : 0 / 0 / 0
  
  x265 [info]: References / ref-limit  cu / depth  : 1 / 0 / 0
  
  x265 [info]: Rate Control / qCompress            : CRF-14.0 / 0.50
  
  x265 [info]: VBV/HRD buffer / max-rate / init    : 32 / 64 / 0.900
  
  x265 [info]: tools: rd=5 psy-rd=0.30 early-skip tmvp deblock
  
  [mpegts @ 0x4776b00] muxrate VBR, pcr every 1 pkts, sdt every 200, pat/pmt every 40 pkts
  
  Output #0, mpegts, to 'udp://239.0.0.1:5002':
  
  Metadata:
  
  encoder         : Lavf56.36.100
  
  Stream #0:0: Video: hevc (libx265), 1 reference frame, yuv420p, 800x600, q=2-31, 10 fps, 90k tbn, 10 tbc
  
  Metadata:
  
  encoder         : Lavc56.41.100 libx265
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (rawvideo (native) -> hevc (libx265))
  
  Press [q] to stop, [?] for help
  
  *** dropping frame 2 from stream 0 at ts 0
  
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  *** dropping frame 6 from stream 0 at ts 4time=00:00:00.40 bitrate= 131.6kbits/s dup=0 drop=9    
  
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  *** dropping frame 21 from stream 0 at ts 19me=00:00:01.90 bitrate=  95.0kbits/s dup=0 drop=36    
  
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  *** dropping frame 28 from stream 0 at ts 26me=00:00:02.60 bitrate=  92.0kbits/s dup=0 drop=52    
  
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  *** 1 dup!
  
  *** dropping frame 35 from stream 0 at ts 33me=00:00:03.30 bitrate=  96.2kbits/s dup=1 drop=62    
  
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  *** dropping frame 42 from stream 0 at ts 40me=00:00:04.00 bitrate=  89.1kbits/s dup=1 drop=78    
  
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  *** dropping frame 46 from stream 0 at ts 44me=00:00:04.40 bitrate=  93.3kbits/s dup=1 drop=88    
  
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  *** dropping frame 50 from stream 0 at ts 48me=00:00:04.80 bitrate=  91.8kbits/s dup=1 drop=97    
  
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  *** dropping frame 55 from stream 0 at ts 53me=00:00:05.30 bitrate=  91.7kbits/s dup=1 drop=102    
  
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  *** 18 dup!
  
  *** 2 dup!
  
  *** 555 dup!fps= 10 q=0.0 size=      86kB time=00:00:08.00 bitrate=  88.4kbits/s dup=21 drop=112    
  
  x265 [warning]: poc:131, VBV underflow (-6152 bits)
  
  x265 [warning]: poc:151, VBV underflow (-17080 bits)
  
  x265 [warning]: poc:211, VBV underflow (-10272 bits)
  
  x265 [warning]: poc:301, VBV underflow (-9024 bits)
  
  x265 [warning]: poc:391, VBV underflow (-11368 bits)
  
  x265 [warning]: poc:501, VBV underflow (-6152 bits)
  
  x265 [warning]: poc:559, VBV underflow (-320 bits)
  
  x265 [warning]: poc:581, VBV underflow (-16552 bits)
  
  *** dropping frame 639 from stream 0 at ts 344=00:01:03.70 bitrate=  81.3kbits/s dup=576 drop=112    
  
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  *** 70055 dup!