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• Show a tcp video stream (from FFPLAY / FFMPEG) in an C# application

  24 avril 2021, par Rob

  I' trying to make my Parrot AR Drone 2.0 work with a Windows machine.

  


  I have a simple C# application to control it - but now i want the video stream inside of my application.

  


  If I execute ffplay tcp://192.168.1.1:5555 it connects to the videostream and shows a window with the video.

  


  How can I get this video inside of my application ? Like, a simple 'frame' or 'image' that gets filled with that content ?

  


  I have never worked that much with C# so any help would be awesome.

  


• Ffmpeg only saves files but don't re transmit the stream in node

  3 juin 2018, par sonseiya

  am using ffmpeg to get a video stream, save a file and re send to another machine.

  Basicaly i am using the following command :

  ffmpeg -timeout 60 -i udp://192.168.0.12:3000 -c:v libx264 -c:a mp2 
  
  -f tee -map 0:v -map 0:a 
  
  "[onfail=ignore]6067_20180602_214828.ts|[f=mpegts]udp://192.168.0.12:4000"

  The file is being generating perfectly, my problem is that i am not getting the udp stream when i try to test it using vlc.

  Did i miss something ?

  I get the command from : https://ffmpeg.org/ffmpeg-formats.html#tee

  Regards

• Error while processing the decoded data for stream using ffmpeg

  15 juin 2018, par Robert Smith

  I am using the following command :

  ffmpeg
  
  
  
      -i "video1a.flv"
  
      -i "video1b.flv"
  
      -i "video1c.flv"
  
      -i "video2a.flv"
  
      -i "video3a.flv"
  
      -i "video4a.flv"
  
      -i "video4b.flv"
  
      -i "video4c.flv"
  
      -i "video4d.flv"
  
      -i "video4e.flv"
  
  
  
      -filter_complex
  
  
  
      nullsrc=size=640x480[base];
  
      [0:v]setpts=PTS-STARTPTS+0.12/TB,scale=320x240[1a];
  
      [1:v]setpts=PTS-STARTPTS+3469.115/TB,scale=320x240[1b];
  
      [2:v]setpts=PTS-STARTPTS+7739.299/TB,scale=320x240[1c];
  
      [5:v]setpts=PTS-STARTPTS+4390.466/TB,scale=320x240[4a];
  
      [6:v]setpts=PTS-STARTPTS+6803.937/TB,scale=320x240[4b];
  
      [7:v]setpts=PTS-STARTPTS+8242.005/TB,scale=320x240[4c];
  
      [8:v]setpts=PTS-STARTPTS+9811.577/TB,scale=320x240[4d];
  
      [9:v]setpts=PTS-STARTPTS+10765.19/TB,scale=320x240[4e];
  
      [base][1a]overlay=eof_action=pass[o1];
  
      [o1][1b]overlay=eof_action=pass[o1];
  
      [o1][1c]overlay=eof_action=pass:shortest=1[o1];
  
      [o1][4a]overlay=eof_action=pass:x=320:y=240[o4];
  
      [o4][4b]overlay=eof_action=pass:x=320:y=240[o4];
  
      [o4][4c]overlay=eof_action=pass:x=320:y=240[o4];
  
      [o4][4d]overlay=eof_action=pass:x=320:y=240[o4];
  
      [o4][4e]overlay=eof_action=pass:x=320:y=240;
  
      [0:a]asetpts=PTS-STARTPTS+0.12/TB,aresample=async=1,pan=1c|c0=c0,apad[a1a];
  
      [1:a]asetpts=PTS-STARTPTS+3469.115/TB,aresample=async=1,pan=1c|c0=c0,apad[a1b];
  
      [2:a]asetpts=PTS-STARTPTS+7739.299/TB,aresample=async=1,pan=1c|c0=c0[a1c];
  
      [3:a]asetpts=PTS-STARTPTS+82.55/TB,aresample=async=1,pan=1c|c0=c0,apad[a2a];
  
      [4:a]asetpts=PTS-STARTPTS+2687.265/TB,aresample=async=1,pan=1c|c0=c0,apad[a3a];
  
      [a1a][a1b][a1c][a2a][a3a]amerge=inputs=5
  
  
  
      -c:v libx264 -c:a aac -ac 2 output.mp4

  This is the stream data from ffmpeg :

  Input #0
  
      Stream #0:0: Video: vp6f, yuv420p, 160x128, 1k tbr, 1k tbn
  
      Stream #0:1: Audio: nellymoser, 11025 Hz, mono, flt
  
  Input #1
  
      Stream #1:0: Audio: nellymoser, 11025 Hz, mono, flt
  
      Stream #1:1: Video: vp6f, yuv420p, 160x128, 1k tbr, 1k tbn
  
  Input #2
  
      Stream #2:0: Audio: nellymoser, 11025 Hz, mono, flt
  
      Stream #2:1: Video: vp6f, yuv420p, 160x128, 1k tbr, 1k tbn
  
  Input #3
  
      Stream #3:0: Audio: nellymoser, 11025 Hz, mono, flt
  
  Input #4
  
      Stream #4:0: Audio: nellymoser, 11025 Hz, mono, flt
  
  Input #5
  
      Stream #5:0: Video: vp6f, yuv420p, 1680x1056, 1k tbr, 1k tbn
  
  Input #6
  
      Stream #6:0: Video: vp6f, yuv420p, 1680x1056, 1k tbr, 1k tbn
  
  Input #7
  
      Stream #7:0: Video: vp6f, yuv420p, 1680x1056, 1k tbr, 1k tbn
  
  Input #8
  
      Stream #8:0: Video: vp6f, yuv420p, 1680x1056, 1k tbr, 1k tbn
  
  Input #9
  
      Stream #9:0: Video: vp6f, yuv420p, 1680x1056, 1k tbr, 1k tbn
  
  Stream mapping:
  
    Stream #0:0 (vp6f) -> setpts
  
    Stream #0:1 (nellymoser) -> asetpts
  
    Stream #1:0 (nellymoser) -> asetpts
  
    Stream #1:1 (vp6f) -> setpts
  
    Stream #2:0 (nellymoser) -> asetpts
  
    Stream #2:1 (vp6f) -> setpts
  
    Stream #3:0 (nellymoser) -> asetpts
  
    Stream #4:0 (nellymoser) -> asetpts
  
    Stream #5:0 (vp6f) -> setpts
  
    Stream #6:0 (vp6f) -> setpts
  
    Stream #7:0 (vp6f) -> setpts
  
    Stream #8:0 (vp6f) -> setpts
  
    Stream #9:0 (vp6f) -> setpts
  
    overlay -> Stream #0:0 (libx264)
  
    amerge -> Stream #0:1 (aac)

  This is the error :

  Press [q] to stop, [?] for help
  
  
  
  Enter command: <target>|all <time>|-1 <command>[ <argument>]
  
  
  
  Parse error, at least 3 arguments were expected, only 1 given in string 'ho Oscar'
  
  [Parsed_amerge_44 @ 0a7238c0] No channel layout for input 1
  
  [Parsed_amerge_44 @ 0a7238c0] Input channel layouts overlap: output layout will be determined by the number of distinct input channels
  
  [Parsed_pan_27 @ 07681880] Pure channel mapping detected: 0
  
  [Parsed_pan_31 @ 07681b40] Pure channel mapping detected: 0
  
  [Parsed_pan_35 @ 0a7232c0] Pure channel mapping detected: 0
  
  [Parsed_pan_38 @ 0a7234c0] Pure channel mapping detected: 0
  
  [Parsed_pan_42 @ 0a723740] Pure channel mapping detected: 0
  
  [libx264 @ 069e8a40] using SAR=1/1
  
  [libx264 @ 069e8a40] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
  
  [libx264 @ 069e8a40] profile High, level 3.0
  
  [libx264 @ 069e8a40] 264 - core 155 r2901 7d0ff22 - H.264/MPEG-4 AVC codec - Copyleft 2003-2018 - 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=15 lookahead_threads=2 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=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
  
  Output #0, mp4, to 'output.mp4':
  
    Metadata:
  
      canSeekToEnd    : false
  
      encoder         : Lavf58.16.100
  
      Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p(progressive), 640x480 [SAR 1:1 DAR 4:3], q=-1--1, 25 fps, 12800 tbn, 25 tbc (default)
  
      Metadata:
  
        encoder         : Lavc58.19.102 libx264
  
      Side data:
  
        cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
  
      Stream #0:1: Audio: aac (LC) (mp4a / 0x6134706D), 11025 Hz, stereo, fltp, 128 kb/s (default)
  
      Metadata:
  
        encoder         : Lavc58.19.102 aac
  
  frame=  200 fps=0.0 q=28.0 size=       0kB time=00:00:07.82 bitrate=   0.0kbits/s speed=15.6x    
  
  ...   
  
  frame=30132 fps=497 q=28.0 size=   29952kB time=00:20:05.14 bitrate= 203.6kbits/s speed=19.9x    
  
  Error while filtering: Cannot allocate memory
  
  Failed to inject frame into filter network: Cannot allocate memory
  
  Error while processing the decoded data for stream #2:1
  
  [libx264 @ 069e8a40] frame I:121   Avg QP: 8.83  size:  7052
  
  [libx264 @ 069e8a40] frame P:7609  Avg QP:18.33  size:  1527
  
  [libx264 @ 069e8a40] frame B:22367 Avg QP:25.44  size:   112
  
  [libx264 @ 069e8a40] consecutive B-frames:  0.6%  0.7%  1.0% 97.8%
  
  [libx264 @ 069e8a40] mb I  I16..4: 75.7% 18.3%  6.0%
  
  [libx264 @ 069e8a40] mb P  I16..4:  0.3%  0.7%  0.1%  P16..4: 10.6%  3.3%  1.6%  0.0%  0.0%    skip:83.4%
  
  [libx264 @ 069e8a40] mb B  I16..4:  0.0%  0.0%  0.0%  B16..8:  3.2%  0.2%  0.0%  direct: 0.2%  skip:96.5%  L0:47.7% L1:48.2% BI: 4.0%
  
  [libx264 @ 069e8a40] 8x8 transform intra:37.4% inter:70.2%
  
  [libx264 @ 069e8a40] coded y,uvDC,uvAC intra: 38.9% 46.1% 28.7% inter: 1.7% 3.3% 0.1%
  
  [libx264 @ 069e8a40] i16 v,h,dc,p: 78%  8%  4% 10%
  
  [libx264 @ 069e8a40] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 33% 20% 12%  3%  6%  8%  6%  6%  7%
  
  [libx264 @ 069e8a40] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 37% 22%  9%  4%  6%  7%  5%  5%  4%
  
  [libx264 @ 069e8a40] i8c dc,h,v,p: 60% 16% 17%  7%
  
  [libx264 @ 069e8a40] Weighted P-Frames: Y:0.7% UV:0.6%
  
  [libx264 @ 069e8a40] ref P L0: 65.5% 12.3% 14.2%  8.0%  0.0%
  
  [libx264 @ 069e8a40] ref B L0: 90.2%  7.5%  2.3%
  
  [libx264 @ 069e8a40] ref B L1: 96.4%  3.6%
  
  [libx264 @ 069e8a40] kb/s:99.58
  
  [aac @ 069e9600] Qavg: 65519.982
  
  [aac @ 069e9600] 2 frames left in the queue on closing
  
  Conversion failed!
  
  </argument></command></time></target>

  I am trying to figure out how to fix these errors :

  Error while filtering: Cannot allocate memory
  
  Failed to inject frame into filter network: Cannot allocate memory
  
  Error while processing the decoded data for stream #2:1

  Observation #1

  If I run the following command on stream #2:1 by itself :

  ffmpeg -i video1c.flv -vcodec libx264 -acodec aac video1c.mp4

  The files is converted fine with no errors.

  Observation #2

  Running MediaInfo on video1c.flv (stream #2) shows the following :

  Format: Flash Video
  
  Video Codecs: On2 VP6
  
  Audio Codecs: Nellymoser

  Any help would be appreciated in resolving this error.

  Update #1

  I have tried splitting the filter graph into two as requested but I receive the same errors :

  Error while filtering: Cannot allocate memory
  
  Failed to inject frame into filter network: Cannot allocate memory
  
  Error while processing the decoded data for stream #1:1

  However, I did discover something, if I try to bring up stream #1:1 mentioned above (video1b.flv) using VLC Media Player, I can hear the audio file but I cannot see the video and I receive this error message :

  No suitable decoder module:
  
  VLC Does not support the audio or video format "undf".
  
  Unfortunately there is no way for you to fix this.

  Update #2

  The above error was with the 32bit version of ffmpeg. I switched to a 64 bit machine and am now running the 64 bit ffmpeg version ffmpeg-20180605-b748772-win64-static.

  Now I no longer receive the following error :

  Error while processing the decoded data for stream #1:1

  But, I have a new error. About an hour into running it, I receive the following error :

  av_interleaved_write_frame(): Cannot allocate memory
  
  [mp4 @ 000000000433f080] Application provided duration: 3327365388930198318
  
  / timestamp: 17178820096 is out of range for mov/mp4 format

  I also tried first remuxing all the files as suggested and using those files to run the above command and that did not help. I still get the same error.