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• C++/OpenCV - VideoCapture doesn't work but it worked before with exactly the same code

  5 mars 2015, par Damià Obrador

  I’m trying to write a shot boundary detection algorithm in C++ using OpenCV. After all, I have to say that I have no experience working with OpenCV.

  I have been improving the following code (and I am still in it) during the last two weeks and everything seems the works correctly, not in terms of perfect shot detection, but every line of code did what was expected from it.

  #include <cstdlib>
  
  #include <opencv2></opencv2>opencv.hpp>
  
  #include <opencv2></opencv2>core/core.hpp>
  
  #include <opencv2></opencv2>video/background_segm.hpp>
  
  #include <opencv2></opencv2>highgui/highgui.hpp>
  
  #include <iostream>
  
  #include <opencv2></opencv2>imgproc/imgproc.hpp>
  
  #include 
  
  #include <istream>
  
  #include <fstream>
  
  using namespace cv;
  
  
  
  
  
  
  
  int main(){
  
  
  
      VideoCapture capture("vdevendetta.mp4");
  
      if ( !capture.isOpened() )
  
       {
  
           std::cout &lt;&lt; "Cannot open the video file";
  
           return -1;
  
       }
  
      int numFrames=capture.get(CV_CAP_PROP_FRAME_COUNT);
  
      bool SB_counter=false;
  
      Mat currentFrame;
  
      Mat frame;
  
      Mat fore;
  
      Mat back;
  
      vector<mat> frames;
  
      FileStorage file;
  
      FileStorage file2;
  
      Mat prev_Y;
  
      Mat channels[3];
  
      for(int i=0;i>currentFrame;
  
              frame=currentFrame.clone();
  
              cvtColor(frame,frame,CV_BGR2YUV);
  
              split( frame, channels );
  
              prev_Y=channels[0];
  
              SB_counter=false;
  
          }
  
          else
  
          {
  
              capture>>currentFrame;
  
              frame=currentFrame.clone();
  
              Mat channels[3];
  
              cvtColor(frame,frame,CV_BGR2YUV);
  
              split( frame, channels );
  
              Mat curr_Y=channels[0];
  
              channels[0]=prev_Y;
  
              prev_Y=curr_Y;
  
              merge(channels,3,frame);
  
              cvtColor(frame,frame,CV_Luv2BGR);
  
              cvtColor(frame,frame,CV_BGR2GRAY);
  
              frames.push_back(frame);
  
          }
  
  
  
      }
  
  
  
      vector<double> MAFDs;
  
      vector<double> MAFD;
  
      vector<double> aux;
  
      double min;
  
      double min2;
  
  
  
      for(int j=1;j14)
  
          {
  
              std::cout&lt;&lt;"De"&lt;*
  
      std::ofstream fout("MAFD.txt");
  
      if(fout.is_open()==true)
  
      {
  
        //file opened successfully so we are here
  
        std::cout &lt;&lt; "File Opened successfully!!!. Writing data from array to file" &lt;&lt; std::endl;
  
  
  
          for(int i = 0; MAFD[i] != '\0'; i++)
  
          {
  
          fout &lt;&lt; MAFD[i]; //writing ith character of array in the file
  
          }
  
        std::cout &lt;&lt; "Array data successfully saved into the file test.txt" &lt;&lt; std::endl;
  
      }
  
      else //file could not be opened
  
      {
  
          std::cout &lt;&lt; "File could not be opened." &lt;&lt; std::endl;
  
      }*/
  
      return 0;
  
  }
  
  </double></double></double></mat></fstream></istream></iostream></cstdlib>

  Three days ago I had an strange problem. The line :

  VideoCapture capture("vdevendetta.mp4");

  stopped working. I spent many hours looking for the solution but nothing seems to repair it. After reading everything related with OpenCV, VideoCapture and ffmpeg that I found on internet I decided to reinstall everything taking care of each detail, but it still didn’t work. Finally I solved it changing the line with this other one :

  VideoCapture capture("/home/damia/Documentos/Universitat/ARA/PAEAV/workspace_cpp/SBD/src/vdevendetta.mp4");

  I did not know why this solved it because the video is in the same directory than the program, but I continued working because everything seemed correct.
  Today I had the same problem again on the new line.
  The terminal doesn’t show any error comment (exceptuating "Cannot open the video file", obviously) but the code doesn’t work again.

  I’m using Ubuntu 14.04 LTS, OpenCV 2.4.9 and Eclipse.

  I think if someone test the code it will run correctly, but I would like to know if there is something I have no taking into account.

  Thank you very match.

• bigbluebutton ...

  7 mars 2015, par signo

  ---

  Hello i have a BigBlueButton (0.9.0-beta (622)) installation on Debian Wheezy (7.8) all is ok except archiving recordings...

  in the log (/var/log/bigbluebutton/archive-488052dc7c095c74bf8992ec51a66298db04b765-1425642166675.log) i have always same message :

  I, [2015-03-06T11:48:19.320704 #4550]  INFO -- : Archiving events for 488052dc7c095c74bf8992ec51a66298db04b765-1425642166675.
  
  W, [2015-03-06T11:48:19.851280 #4550]  WARN -- : Failed to archive events for 488052dc7c095c74bf8992ec51a66298db04b765-1425642166675. Permission denied - /var/bigbluebutton/recording/raw/488052dc7c095c74bf8992ec51a66298db04b765-1425642166675/events.xml (complete error below...)

  but all directory are writable by right user (tomcat7).

  More Info :

  bbb packages installed

  ii  bbb-apps                              0.9.0-1ubuntu88               amd64        BigBlueButton applications for Red5
  
  ii  bbb-apps-deskshare                    0.9.0-1ubuntu25               amd64        BigBlueButton deskshare module for Red5
  
  ii  bbb-apps-sip                          0.9.0-1ubuntu19               amd64        BigBlueButton SIP module for Red5
  
  ii  bbb-apps-video                        0.9.0-1ubuntu18               amd64        BigBlueButton video module for Red5
  
  ii  bbb-client                            0.9.0-1ubuntu235              all          BigBlueButton Flash client
  
  ii  bbb-config                            0.9.0-1ubuntu42               all          BigBlueButton configuration
  
  rc  bbb-demo                              0.9.0-1ubuntu8                amd64        BigBlueButton API demos
  
  ii  bbb-freeswitch                        0.9.0-1ubuntu38               amd64        BigBlueButton build of FreeSWITCH 1.5.x
  
  ii  bbb-mkclean                           0.8.7-1                       amd64        tool to clean and optimize Matroska and WebM files
  
  ii  bbb-office                            0.9.0-1ubuntu6                amd64        BigBlueButton wrapper for LibreOffice
  
  ii  bbb-playback-presentation             0.9.0-1ubuntu11               amd64        BigBluebutton playback of presentation
  
  ii  bbb-record-core                       0.9.0-1ubuntu37               amd64        BigBlueButton record and playback
  
  ii  bbb-red5                              0.9.0-1ubuntu25               amd64        The Red5 server for bbb
  
  ii  bbb-swftools                          0.9.2-1ubuntu14               amd64        The swftools files for bbb
  
  ii  bbb-web                               0.9.0-1ubuntu54               all          BigBlueButton API
  
  ii  bigbluebutton                         0.9.0-1ubuntu2                amd64        Open source web conferencing platform (bbb)

  ---

  bbb-conf —check

  BigBlueButton Server 0.9.0-beta (622)
  
                      Kernel version: 3.16.0-4-amd64(64-bit)
  
                              Memory: 12044 MB
  
  
  
  /var/www/bigbluebutton/client/conf/config.xml (bbb-client)
  
          Port test (tunnel): 2xx.xxx.xxx.xx
  
                                Red5: 2xx.xxx.xxx.xx
  
                useWebrtcIfAvailable: true
  
  
  
  /opt/freeswitch/conf/sip_profiles/external.xml (FreeSWITCH)
  
                      websocket port: 5066
  
                      WebRTC enabled: true
  
  
  
  /etc/nginx/sites-available/bigbluebutton (nginx)
  
                         server name: 2xx.xxx.xxx.xx
  
                                port: 80
  
                      bbb-client dir: /var/www/bigbluebutton
  
  
  
  /var/lib/tomcat7/webapps/bigbluebutton/WEB-INF/classes/bigbluebutton.properties (bbb-web)
  
                        bbb-web host: 2xx.xxx.xxx.xx
  
  
  
  /usr/share/red5/webapps/bigbluebutton/WEB-INF/red5-web.xml (red5)
  
                    voice conference: FreeSWITCH
  
                       capture video: true
  
                     capture desktop: true
  
  
  
  /usr/local/bigbluebutton/core/scripts/bigbluebutton.yml (record and playback)
  
                       playback host: 2xx.xxx.xxx.xx
  
  
  
  
  
  * Potential problems described below **
  
      # IP does not match:
  
      #                           IP from ifconfig: 172.xx.xxx.xx
  
      #   /etc/nginx/sites-available/bigbluebutton: 2xx.xxx.xxx.xx
  
      # Error: Unable to connect to port 1935 (RTMP) 2xx.xxx.xxx.xx
  
  
  
      # Error: Unable to connect to port 9123 (desktop sharing) on 212.xxx.xxx.xx

  ---

  ls -l /var/freeswitch/meetings/

  -rw-r--r-- 1 freeswitch daemon 5139984 Mar  6 11:44 488052dc7c095c74bf8992ec51a66298db04b765-1425642166675-81976383.wav

  ---

  ls -l /usr/share/red5/webapps/video/streams/488052dc7c095c74bf8992ec51a66298db04b765-1425642166675/

  -rw-rw-r-- 1 red5 red5 438342 Mar  6 11:44 320x240-cztd6nyzasaz_1-1425642114164.flv

  ---

  ls -l /usr/share/red5/webapps/video/streams/488052dc7c095c74bf8992ec51a66298db04b765-1425642166675/

  -rw-rw-r-- 1 red5 red5 438342 Mar  6 11:44 320x240-cztd6nyzasaz_1-1425642114164.flv

  ---

  cat /usr/share/red5/webapps/video/WEB-INF/red5-web.xml

  <bean class="org.bigbluebutton.app.video.VideoApplication">
  
          <property value="true"></property>
  
          <property ref="redisRecorder"></property>
  
  </bean>

  ---

  cat /usr/share/red5/webapps/deskshare/WEB-INF/red5-web.xml

   <bean class="org.bigbluebutton.deskshare.server.stream.StreamManager">
  
      
  
      
  
   </bean>

  ---

  bbb-record —watch

  Every 2.0s: bbb-record --list20                                                                                                                                   Fri Mar  6 11:53:58 2015
  
  
  
  Internal MeetingID                                               Time                APVD APVDE RAS Slides Processed            Published           External MeetingID
  
  ------------------------------------------------------  ---------------------------- ---- ----- --- ------ -------------------- ------------------  -------------------
  
  57d9849193299cebe9409d1c98d175958331d34a-1425642748807  Fri 6 Mar 11:52:28 GMT 2015   X                  5
  
  488052dc7c095c74bf8992ec51a66298db04b765-1425642166675  Fri 6 Mar 11:42:46 GMT 2015  XXX         X       6

  ---

  bbb-record —debug

  E, [2015-03-06T11:48:20.335578 #4548] ERROR -- : Sanity check failed on 488052dc7c095c74bf8992ec51a66298db04b765-1425642166675

  ---

  cat /var/log/bigbluebutton/archive-488052dc7c095c74bf8992ec51a66298db04b765-1425642166675.log

  # Logfile created on 2015-03-06 11:48:19 +0000 by logger.rb/31641
  
  I, [2015-03-06T11:48:19.320704 #4550]  INFO -- : Archiving events for 488052dc7c095c74bf8992ec51a66298db04b765-1425642166675.
  
  W, [2015-03-06T11:48:19.851280 #4550]  WARN -- : Failed to archive events for 488052dc7c095c74bf8992ec51a66298db04b765-1425642166675. Permission denied - /var/bigbluebutton/recording/raw/488052dc7c095c74bf8992ec51a66298db04b765-1425642166675/events.xml
  
  I, [2015-03-06T11:48:19.851428 #4550]  INFO -- : Fetching the recording marks for 488052dc7c095c74bf8992ec51a66298db04b765-1425642166675.
  
  I, [2015-03-06T11:48:19.851501 #4550]  INFO -- : Getting record status events
  
  W, [2015-03-06T11:48:19.851585 #4550]  WARN -- : Failed to fetch the recording marks for 488052dc7c095c74bf8992ec51a66298db04b765-1425642166675. Permission denied - /var/bigbluebutton/recording/raw/488052dc7c095c74bf8992ec51a66298db04b765-1425642166675/events.xml
  
  I, [2015-03-06T11:48:19.851645 #4550]  INFO -- : Archiving audio /var/freeswitch/meetings/488052dc7c095c74bf8992ec51a66298db04b765-1425642166675*.wav.
  
  W, [2015-03-06T11:48:19.851920 #4550]  WARN -- : Failed to archive audio for 488052dc7c095c74bf8992ec51a66298db04b765-1425642166675. Permission denied - /var/bigbluebutton/recording/raw/488052dc7c095c74bf8992ec51a66298db04b765-1425642166675/audio
  
  I, [2015-03-06T11:48:19.851981 #4550]  INFO -- : Archiving presentation for 488052dc7c095c74bf8992ec51a66298db04b765-1425642166675.
  
  W, [2015-03-06T11:48:19.852257 #4550]  WARN -- : Failed to archive presentations for 488052dc7c095c74bf8992ec51a66298db04b765-1425642166675. Permission denied - /var/bigbluebutton/recording/raw/488052dc7c095c74bf8992ec51a66298db04b765-1425642166675/presentation
  
  I, [2015-03-06T11:48:19.852322 #4550]  INFO -- : Archiving deskshare for 488052dc7c095c74bf8992ec51a66298db04b765-1425642166675.
  
  W, [2015-03-06T11:48:19.852561 #4550]  WARN -- : Failed to archive deskshare for 488052dc7c095c74bf8992ec51a66298db04b765-1425642166675. Permission denied - /var/bigbluebutton/recording/raw/488052dc7c095c74bf8992ec51a66298db04b765-1425642166675/deskshare
  
  I, [2015-03-06T11:48:19.852620 #4550]  INFO -- : Archiving video for 488052dc7c095c74bf8992ec51a66298db04b765-1425642166675.
  
  W, [2015-03-06T11:48:19.852834 #4550]  WARN -- : Failed to archive video for 488052dc7c095c74bf8992ec51a66298db04b765-1425642166675. Permission denied - /var/bigbluebutton/recording/raw/488052dc7c095c74bf8992ec51a66298db04b765-1425642166675/video

  ---

  all folder under /var/bigbluebutton/ have same rights (drwxrwxrwx tomcat7 tomcat7)

  ls -l /var/bigbluebutton/

  total 40
  
  drwxr-xr-x 3 tomcat7 tomcat7 4096 Mar  6 11:42 488052dc7c095c74bf8992ec51a66298db04b765-1425642166675
  
  drwxr-xr-x 3 tomcat7 tomcat7 4096 Mar  6 11:52 57d9849193299cebe9409d1c98d175958331d34a-1425642748807
  
  drwxrwxrwx 2 tomcat7 tomcat7 4096 Mar  3 15:52 blank
  
  drwxrwxrwx 2 tomcat7 tomcat7 4096 Feb 17 17:17 configs
  
  drwxrwxrwx 2 tomcat7 tomcat7 4096 Mar  3 15:57 deskshare
  
  drwxrwxrwx 2 tomcat7 tomcat7 4096 Mar  3 15:57 meetings
  
  drwxrwxrwx 3 tomcat7 tomcat7 4096 Mar  3 15:52 playback
  
  drwxrwxrwx 3 tomcat7 tomcat7 4096 Mar  3 15:57 published
  
  drwxrwxrwx 6 tomcat7 tomcat7 4096 Mar  3 15:57 recording
  
  drwxrwxrwx 2 tomcat7 tomcat7 4096 Mar  3 15:57 unpublished

  ---

• ffmpeg copyts to preserve timestamp

  13 avril 2015, par Bala

  I am trying to modify an HLS segment transport stream, and preserve its start time with ffmpeg. However the output does not preserve the input file’s start_time value, even if -copyts is mentioned. Here’s my command line :

  ffmpeg  -i fileSequence1.ts -i x.png -filter_complex '[0:v][1:v]overlay[out]' -map '[out]' -map 0:1 -acodec copy -vsync 0 -vcodec libx264 -streamid 0:257 -streamid 1:258 -copyts -profile:v baseline -level 3 output.ts

  The start_time value is delayed about 2 seconds consistently.

  /Users/macadmin/>ffmpeg -y -v verbose -i fileSequence0.ts -map 0:0 -vcodec libx264 -copyts -vsync 0 -async 0 output.ts
  
  ffmpeg version 2.5.3 Copyright (c) 2000-2015 the FFmpeg developers
  
    built on Mar 29 2015 21:31:57 with Apple LLVM version 6.0 (clang-600.0.54) (based on LLVM 3.5svn)
  
    configuration: --prefix=/usr/local/Cellar/ffmpeg/2.5.3 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-libx264 --enable-libmp3lame --enable-libvo-aacenc --enable-libxvid --enable-libfreetype --enable-libvorbis --enable-libvpx --enable-libass --enable-ffplay --enable-libfdk-aac --enable-libopus --enable-libquvi --enable-libx265 --enable-nonfree --enable-vda
  
    libavutil      54. 15.100 / 54. 15.100
  
    libavcodec     56. 13.100 / 56. 13.100
  
    libavformat    56. 15.102 / 56. 15.102
  
    libavdevice    56.  3.100 / 56.  3.100
  
    libavfilter     5.  2.103 /  5.  2.103
  
    libavresample   2.  1.  0 /  2.  1.  0
  
    libswscale      3.  1.101 /  3.  1.101
  
    libswresample   1.  1.100 /  1.  1.100
  
    libpostproc    53.  3.100 / 53.  3.100
  
  [h264 @ 0x7fa93b800000] Current profile doesn't provide more RBSP data in PPS, skipping
  
      Last message repeated 2 times
  
  [mpegts @ 0x7fa93a80da00] max_analyze_duration 5000000 reached at 5000000 microseconds
  
  Input #0, mpegts, from 'fileSequence0.ts':
  
    Duration: 00:00:09.65, start: 9.952111, bitrate: 412 kb/s
  
    Program 1 
  
      Stream #0:0[0x101]: Video: h264 (Constrained Baseline) ([27][0][0][0] / 0x001B), yuv420p, 640x360 (640x368), 25 fps, 25 tbr, 90k tbn, 50 tbc
  
      Stream #0:1[0x102]: Audio: aac (LC) ([15][0][0][0] / 0x000F), 44100 Hz, stereo, fltp, 101 kb/s
  
  [graph 0 input from stream 0:0 @ 0x7fa93a5229c0] w:640 h:360 pixfmt:yuv420p tb:1/90000 fr:25/1 sar:0/1 sws_param:flags=2
  
  [libx264 @ 0x7fa93b800c00] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
  
  [libx264 @ 0x7fa93b800c00] profile High, level 3.0
  
  [mpegts @ 0x7fa93b800600] muxrate VBR, pcr every 2 pkts, sdt every 200, pat/pmt every 40 pkts
  
  Output #0, mpegts, to 'output.ts':
  
    Metadata:
  
      encoder         : Lavf56.15.102
  
      Stream #0:0: Video: h264 (libx264), yuv420p, 640x360, q=-1--1, 25 fps, 90k tbn, 25 tbc
  
      Metadata:
  
        encoder         : Lavc56.13.100 libx264
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
  
  Press [q] to stop, [?] for help
  
  [NULL @ 0x7fa93b800000] Current profile doesn't provide more RBSP data in PPS, skipping
  
      Last message repeated 1 times
  
  frame=   87 fps=0.0 q=28.0 size=      91kB time=00:00:11.40 bitrate=  65.0kbits/[NULL @ 0x7fa93b800000] Current profile doesn't provide more RBSP data in PPS, skipping
  
  frame=  152 fps=151 q=28.0 size=     204kB time=00:00:14.00 bitrate= 119.4kbits/[NULL @ 0x7fa93b800000] Current profile doesn't provide more RBSP data in PPS, skipping
  
  frame=  224 fps=148 q=28.0 size=     306kB time=00:00:16.88 bitrate= 148.5kbits/No more output streams to write to, finishing.
  
  frame=  240 fps=125 q=-1.0 Lsize=     392kB time=00:00:19.52 bitrate= 164.6kbits/s    
  
  video:334kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 17.347548%
  
  Input file #0 (fileSequence0.ts):
  
    Input stream #0:0 (video): 240 packets read (360450 bytes); 240 frames decoded; 
  
    Input stream #0:1 (audio): 0 packets read (0 bytes); 
  
    Total: 240 packets (360450 bytes) demuxed
  
  Output file #0 (output.ts):
  
    Output stream #0:0 (video): 240 frames encoded; 240 packets muxed (342204 bytes); 
  
    Total: 240 packets (342204 bytes) muxed
  
  [libx264 @ 0x7fa93b800c00] frame I:3     Avg QP:15.08  size:  7856
  
  [libx264 @ 0x7fa93b800c00] frame P:81    Avg QP:21.03  size:  2807
  
  [libx264 @ 0x7fa93b800c00] frame B:156   Avg QP:23.40  size:   585
  
  [libx264 @ 0x7fa93b800c00] consecutive B-frames: 11.7%  2.5%  7.5% 78.3%
  
  [libx264 @ 0x7fa93b800c00] mb I  I16..4: 57.4% 17.5% 25.1%
  
  [libx264 @ 0x7fa93b800c00] mb P  I16..4:  8.0%  8.2%  1.0%  P16..4: 30.5% 11.3%  4.6%  0.0%  0.0%    skip:36.4%
  
  [libx264 @ 0x7fa93b800c00] mb B  I16..4:  0.1%  0.1%  0.0%  B16..8: 34.6%  2.7%  0.2%  direct: 1.3%  skip:60.9%  L0:47.3% L1:49.1% BI: 3.6%
  
  [libx264 @ 0x7fa93b800c00] 8x8 transform intra:42.2% inter:73.3%
  
  [libx264 @ 0x7fa93b800c00] coded y,uvDC,uvAC intra: 26.2% 43.0% 6.8% inter: 5.4% 8.5% 0.1%
  
  [libx264 @ 0x7fa93b800c00] i16 v,h,dc,p: 46% 26%  6% 21%
  
  [libx264 @ 0x7fa93b800c00] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 50% 14% 23%  1%  2%  6%  1%  3%  1%
  
  [libx264 @ 0x7fa93b800c00] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 40% 32% 10%  3%  3%  4%  2%  5%  2%
  
  [libx264 @ 0x7fa93b800c00] i8c dc,h,v,p: 48% 23% 26%  3%
  
  [libx264 @ 0x7fa93b800c00] Weighted P-Frames: Y:1.2% UV:0.0%
  
  [libx264 @ 0x7fa93b800c00] ref P L0: 71.5% 10.7% 14.8%  2.9%  0.1%
  
  [libx264 @ 0x7fa93b800c00] ref B L0: 95.5%  4.0%  0.5%
  
  [libx264 @ 0x7fa93b800c00] ref B L1: 96.8%  3.2%
  
  [libx264 @ 0x7fa93b800c00] kb/s:285.17
  
  
  
  ----------- FFProbe source video
  
  /Users/macadmin>ffprobe fileSequence0.ts
  
  ffprobe version 2.5.3 Copyright (c) 2007-2015 the FFmpeg developers
  
    built on Mar 29 2015 21:31:57 with Apple LLVM version 6.0 (clang-600.0.54) (based on LLVM 3.5svn)
  
    configuration: --prefix=/usr/local/Cellar/ffmpeg/2.5.3 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-libx264 --enable-libmp3lame --enable-libvo-aacenc --enable-libxvid --enable-libfreetype --enable-libvorbis --enable-libvpx --enable-libass --enable-ffplay --enable-libfdk-aac --enable-libopus --enable-libquvi --enable-libx265 --enable-nonfree --enable-vda
  
    libavutil      54. 15.100 / 54. 15.100
  
    libavcodec     56. 13.100 / 56. 13.100
  
    libavformat    56. 15.102 / 56. 15.102
  
    libavdevice    56.  3.100 / 56.  3.100
  
    libavfilter     5.  2.103 /  5.  2.103
  
    libavresample   2.  1.  0 /  2.  1.  0
  
    libswscale      3.  1.101 /  3.  1.101
  
    libswresample   1.  1.100 /  1.  1.100
  
    libpostproc    53.  3.100 / 53.  3.100
  
  Input #0, mpegts, from 'fileSequence0.ts':
  
    Duration: 00:00:09.65, start: 9.952111, bitrate: 412 kb/s
  
    Program 1 
  
      Stream #0:0[0x101]: Video: h264 (Constrained Baseline) ([27][0][0][0] / 0x001B), yuv420p, 640x360, 25 fps, 25 tbr, 90k tbn, 50 tbc
  
      Stream #0:1[0x102]: Audio: aac (LC) ([15][0][0][0] / 0x000F), 44100 Hz, stereo, fltp, 101 kb/s
  
  
  
  ------ FFPROBE result video
  
  /Users/macadmin>ffprobe output.ts
  
  ffprobe version 2.5.3 Copyright (c) 2007-2015 the FFmpeg developers
  
    built on Mar 29 2015 21:31:57 with Apple LLVM version 6.0 (clang-600.0.54) (based on LLVM 3.5svn)
  
    configuration: --prefix=/usr/local/Cellar/ffmpeg/2.5.3 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-libx264 --enable-libmp3lame --enable-libvo-aacenc --enable-libxvid --enable-libfreetype --enable-libvorbis --enable-libvpx --enable-libass --enable-ffplay --enable-libfdk-aac --enable-libopus --enable-libquvi --enable-libx265 --enable-nonfree --enable-vda
  
    libavutil      54. 15.100 / 54. 15.100
  
    libavcodec     56. 13.100 / 56. 13.100
  
    libavformat    56. 15.102 / 56. 15.102
  
    libavdevice    56.  3.100 / 56.  3.100
  
    libavfilter     5.  2.103 /  5.  2.103
  
    libavresample   2.  1.  0 /  2.  1.  0
  
    libswscale      3.  1.101 /  3.  1.101
  
    libswresample   1.  1.100 /  1.  1.100
  
    libpostproc    53.  3.100 / 53.  3.100
  
  Input #0, mpegts, from 'output.ts':
  
    Duration: 00:00:09.60, start: 11.400000, bitrate: 334 kb/s
  
    Program 1 
  
      Metadata:
  
        service_name    : Service01
  
        service_provider: FFmpeg
  
      Stream #0:0[0x100]: Video: h264 (High) ([27][0][0][0] / 0x001B), yuv420p, 640x360, 25 fps, 25 tbr, 90k tbn, 50 tbc

  How do I ensure that output file has the same start_time ? Thanks.