Recherche avancée

Sur d’autres sites (12609)

• FFmpeg text is not displayed in my streamed video

  18 février 2017, par Ferguson

  on orangepi PC (armbian os) have installed Ffmpeg. I have followed the example in one previous post on how to add text into the stream but I don’t get any text in my video..

  ffserver.conf

  HTTPPort 8090
  
  HTTPBindAddress 0.0.0.0
  
  MaxHTTPConnections 2000
  
  MaxClients 1000
  
  MaxBandwidth 10000
  
  CustomLog -
  
  
  
  <feed>
  
  File /tmp/monitoring1.ffm
  
  FileMaxSize 50M
  
  ACL allow 127.0.0.1
  
  ACL allow 192.168.0.0 192.168.255.255
  
  </feed>
  
  
  
  <stream>
  
  Feed monitoring1.ffm
  
  Format mpjpeg
  
  VideoCodec mjpeg
  
  VideoFrameRate 22
  
  VideoBufferSize 80
  
  VideoSize 720x264
  
  NoAudio
  
  </stream>
  
  
  
  
  
  # Redirect index.html to the appropriate site
  
  
  
  <redirect>
  
  URL http://www.ffmpeg.org/
  
  </redirect>

  I start a ffmpeg as :

  #!/bin/bash
  
  # My first script
  
  ffmpeg -i rtsp://mpv.cdn3.bigCDN.com:554/bigCDN/definst/mp4:bigbuckbunnyiphone_400.mp4 -vf drawtext="fontfile=/home/projekt/StreamTest/DejaVuSans.ttf: \
  
  text='Stack Overflow': fontcolor=white: fontsize=36: box=1: boxcolor=black@0.5: \
  
  boxborderw=5: x=(w-text_w)/2: y=(h-text_h)/2" -codec:a copy http://localhost:8090/monitoring1.ffm

  

  this is the result but the text is missing

  

  thank you

• In Android how to add text as watermark on already recorded video with ffmpeg ?

  23 juillet 2016, par jullie

  I am trying to set text as a watermark on already recorded video but it is not working. As I tried image.png as a water mark and it works by following this url http://androidwarzone.blogspot.in/2011/12/ffmpeg4android.html

  Command for apply image as watermark on already recorded video :

  String[] complexCommand = {"ffmpeg","-y" ,"-i", videoPathHere,"-strict",
  
  "experimental", "-vf", "movie=" 
  
  + Environment.getExternalStorageDirectory().getAbsolutePath() 
  
  + "/watermarkImg.png [watermark]; [in][watermark] overlay=main_w-overlay_w-10:10 [out]",
  
  "-s", "160x120","-r", "30", "-b", "15496k", "-vcodec", "mpeg4","-ab", "48000", 
  
  "-ac", "2", "-ar", "22050", 
  
  Environment.getExternalStorageDirectory().getAbsolutePath()+"/watermark.mp4"}; 

  but when I tried to implement text as watermark its not working :

  String[] complexCommand = {"ffmpeg", "-y" , "-i", videoPathHere, "-strict", "experimental", 
  
  "-vf", "drawtext=fontfile=" + file + ":text=TestText", "-s", "160x120", "-r", "30", 
  
  "-b", "15496k", "-vcodec", "mpeg4", "-ab", "48000", "-ac", "2", "-ar", "22050", 
  
  Environment.getExternalStorageDirectory().getAbsolutePath()+"/watermark.mp4"}; 

  Even I tried this also
  http://video.stackexchange.com/questions/15551/ffmpeg-drawtext-filter-create-transparent-background-with-text

  but it is also not working in my case.

  So, what is going wrong with adding text as watermark ?

  I make changes in commenad from ;text=TestText to :text=TestText then it shows given error.

  07-23 10:58:07.595 : I/Videokit(28832) : libvideokit.so loaded
  07-23 10:58:07.595 : I/Videokit(28832) : args is not NULL
  07-23 10:58:07.595 : I/Videokit(28832) : more then one arg
  07-23 10:58:07.595 : I/Videokit(28832) : function symbol found
  07-23 10:58:07.595 : D/Videokit(28832) : Calling videokit run via loader
  07-23 10:58:07.595 : I/Videokit(28832) : vk ffmpeg sdcardPath : /data/user/0/valamovie.com/files/
  07-23 10:58:07.595 : D/Videokit(28832) : call licenseCheckComplex
  07-23 10:58:07.595 : I/Videokit(28832) : licenseCheck in path : /data/user/0/valamovie.com/files/
  07-23 10:58:07.595 : I/Videokit(28832) : isLicExistsComplex...
  07-23 10:58:07.595 : I/Videokit(28832) : trying to open /data/user/0/valamovie.com/files//ffmpeglicense.lic
  07-23 10:58:07.595 : I/Videokit(28832) : license file found...
  07-23 10:58:07.596 : I/Videokit(28832) : You used 0 of your 15 trial days.
  07-23 10:58:07.596 : D/Videokit(28832) : license check rc : 0
  07-23 10:58:07.596 : D/Videokit(28832) : run() called
  07-23 10:58:07.670 : A/libc(28832) : Fatal signal 11 (SIGSEGV), code 1, fault addr 0x10 in tid 28832 (valamovie.com)
  07-23 10:58:07.771 : A/DEBUG(152) : * *
  07-23 10:58:07.771 : A/DEBUG(152) : Build fingerprint : ’Lava/PixelV1/PixelV1_sprout:6.0/MRA58V/eng.admin.20160419.120644:user/release-keys’
  07-23 10:58:07.771 : A/DEBUG(152) : Revision : ’0’
  07-23 10:58:07.771 : A/DEBUG(152) : ABI : ’arm’
  07-23 10:58:07.771 : A/DEBUG(152) : pid : 28832, tid : 28832, name : valamovie.com >>> valamovie.com <<<
  07-23 10:58:07.772 : A/DEBUG(152) : signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr 0x10
  07-23 10:58:07.789 : A/DEBUG(152) : r0 00000000 r1 00000001 r2 0000001e r3 00000000
  07-23 10:58:07.789 : A/DEBUG(152) : r4 b8ae87c0 r5 b8ae7fb0 r6 00000000 r7 b8b22500
  07-23 10:58:07.789 : A/DEBUG(152) : r8 9ee64cc4 r9 b8a1fad0 sl b8b625d0 fp 00000000
  07-23 10:58:07.789 : A/DEBUG(152) : ip b6d875dc sp bea3e340 lr 9e3969ac pc 9e395bb8 cpsr 600f0010
  07-23 10:58:07.791 : A/DEBUG(152) : backtrace :
  07-23 10:58:07.791 : A/DEBUG(152) : #00 pc 0007cbb8 /data/app/valamovie.com-1/lib/arm/libvideokit.so
  07-23 10:58:08.503 : W/ActivityManager(557) : Force finishing activity valamovie.com/.Ui.addNewProject
  07-23 10:58:08.504 : A/DEBUG(152) : Tombstone written to : /data/tombstones/tombstone_00
  07-23 10:58:08.504 : E/DEBUG(152) : AM write failed : Broken pipe
  07-23 10:58:08.505 : I/BootReceiver(557) : Copying /data/tombstones/tombstone_00 to DropBox (SYSTEM_TOMBSTONE)
  07-23 10:58:08.527 : W/InputDispatcher(557) : channel ’86e38ae valamovie.com/valamovie.com.Ui.MainActivity (server)’ Consumer closed input channel or an error occurred. events=0x9
  07-23 10:58:08.528 : E/InputDispatcher(557) : channel ’86e38ae valamovie.com/valamovie.com.Ui.MainActivity (server)’ Channel is unrecoverably broken and will be disposed !
  07-23 10:58:08.529 : W/InputDispatcher(557) : channel ’e50713f valamovie.com/valamovie.com.Ui.addNewProject (server)’ Consumer closed input channel or an error occurred. events=0x9
  07-23 10:58:08.529 : E/InputDispatcher(557) : channel ’e50713f valamovie.com/valamovie.com.Ui.addNewProject (server)’ Channel is unrecoverably broken and will be disposed !
  07-23 10:58:08.531 : W/ActivityManager(557) : Exception thrown during pause

• What is the structure of a video stream ?

  8 juillet 2016, par Matt

  The end goal is to process the RGB data of a video.

  I am trying to read the bytes of a file that I have created using ffmpeg.

  ffmpeg -video_size 100x100 -framerate 20 -f x11grab -i :0.0 \
  
      -c:v rawvideo -pix_fmt rgb24 -video.nut

  I wrote a node script to help make it easier to read the binary data if you need it. The output of my current file is :

  Hex Binary   Row
  
  47  01000111 0
  
  40  01000000 1
  
  11  00010001 2
  
  10  00010000 3
  
  03  00000011 4
  
  00  00000000 5
  
  00  00000000 6
  
  00  00000000 7
  
  68  01101000 8 

  I see the spec for a .nut, but I can’t figure it out. I would like to be able to parse out the RGB data for each frame so that I am left with a RGB matrix for each "image" in the video stream. Thanks !