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• No such filter : '"' Error initializing complex filters [duplicate]

  28 juin 2019, par sachin

  This question already has an answer here :

  • Fontconfig error : Cannot load default config file
    
    2 answers
    

  I am trying add some text on video, but I am getting :

  No such filter:
  
    Error initializing complex filters.
  
    Invalid argument

  Below command using for adding text -

  In Java :

  String complexCommand = "ffmpeg -i "+ savedVideoFilePath +" -filter_complex \"[0:v][1:v]overlay=10:10,drawtext=text="+"'"+ timestamp +"'" + "\""+ " -c:a copy -movflags +faststart " +output_path;

  In string format :

  ffmpeg -i /data/user/0/com.rs.vir.debug/files/VIR_Customer/EVINV12207201906100303240000/Videos/sample.mp4 -filter_complex "[0:v][1:v]overlay=10:10,drawtext=text='12-08-2019_11:00pm'" -c:a copy -movflags +faststart /data/user/0/com.rs.vir.debug/files/VIR_Customer/EVINV12207201906100303240000/Videos/output_1052019163054.mp4

  ffmpeg version n3.0.1 Copyright (c) 2000-2016 the FFmpeg developers
  
        built with gcc 4.8 (GCC)
  
        configuration: --target-os=linux --cross-prefix=/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/bin/arm-linux-androideabi- --arch=arm --cpu=cortex-a8 --enable-runtime-cpudetect --sysroot=/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/sysroot --enable-pic --enable-libx264 --enable-libass --enable-libfreetype --enable-libfribidi --enable-libmp3lame --enable-fontconfig --enable-pthreads --disable-debug --disable-ffserver --enable-version3 --enable-hardcoded-tables --disable-ffplay --disable-ffprobe --enable-gpl --enable-yasm --disable-doc --disable-shared --enable-static --pkg-config=/home/vagrant/SourceCode/ffmpeg-android/ffmpeg-pkg-config --prefix=/home/vagrant/SourceCode/ffmpeg-android/build/armeabi-v7a --extra-cflags='-I/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/include -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all' --extra-ldflags='-L/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/lib -Wl,-z,relro -Wl,-z,now -pie' --extra-libs='-lpng -lexpat -lm' --extra-cxxflags=
  
        libavutil      55. 17.103 / 55. 17.103
  
        libavcodec     57. 24.102 / 57. 24.102
  
        libavformat    57. 25.100 / 57. 25.100
  
        libavdevice    57.  0.101 / 57.  0.101
  
        libavfilter     6. 31.100 /  6. 31.100
  
        libswscale      4.  0.100 /  4.  0.100
  
        libswresample   2.  0.101 /  2.  0.101
  
        libpostproc    54.  0.100 / 54.  0.100
  
      Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/data/user/0/com.rs.vir.debug/files/appname/videos/sample.mp4':
  
        Metadata:
  
          major_brand     : mp42
  
          minor_version   : 0
  
          compatible_brands: isommp42
  
          creation_time   : 2019-06-10 10:18:21
  
          com.android.version: 8.1.0
  
        Duration: 00:00:12.18, start: 0.000000, bitrate: 2176 kb/s
  
          Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, smpte170m/smpte170m/bt709), 720x480, 1920 kb/s, SAR 1:1 DAR 3:2, 16.66 fps, 16.67 tbr, 90k tbn, 180k tbc (default)
  
          Metadata:
  
            rotate          : 90
  
            creation_time   : 2019-06-10 10:18:21
  
            handler_name    : VideoHandle
  
          Side data:
  
            displaymatrix: rotation of -90.00 degrees
  
          Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 253 kb/s (default)
  
          Metadata:
  
            creation_time   : 2019-06-10 10:18:21
  
            handler_name    : SoundHandle
  
      [AVFilterGraph @ 0xe772d080] No such filter: '"'
  
      Error initializing complex filters.
  
      Invalid argument

  Anything I need to add or change command, give me any idea ?

• Can I use the "stream copy" of ffmpeg in OpenCV with VideoWriter class ?

  14 mai 2019, par DerekG

  Python : 3.6, Ubuntu 18.04, OpenCV 4.1.0

  I have an IP camera that streams video data in H.264 encoding. I would like to take this video stream and save it in a .avi file using Python without any encoding or decoding. Using a command line interface and ffmpeg commands, this is trivial to do.

  mycomputer@home:~$ ffmpeg -i rtsp://username:password@192.168.1.1/?framerate=30.0?streamprofile=defaultcameraprofile -acodec copy -vcodec copy output_file_name.avi 

  I’d like to do a similar thing from within Python using OpenCV. Currently, I am using VideoCapture class to read in each frame, and then using the OpenCV VideoWriter class to write this frame to a file. My issue is that the VideoWriter class requires a four_cc code to specify which codec is to be used during writing, whereas I don’t want to use any codec at all (or more precisely, I want to use the stream copy of FFmpeg, but there is to my knowledge no corresponding four_cc code). OpenCV documentation specifies that if I use the FFmpeg backend API and specify both a codec and framerate of 0, the raw stream should be written to the new file. However, when I do this, no file is created.

  cap = cv2.VideoCapture("rtsp://username:password@192.168.1.1/?framerate=30.0?streamprofile=defaultcameraprofile", cv2.CAP_FFMPEG)
  
  frame_width = int(cap.get(3))
  
  frame_height = int(cap.get(4))
  
  # output file, backend API, four_cc code integer, framerate, frame size tuple
  
  out = cv2.videoWriter("output_file.avi",cv2.CAP_FFMPEG,0,0,(frame_width,frame_height))

  I have tried many combinations of other input parameters to the videoWriter constructor but all of them either re-encode the stream or do not write an output file. For instance, I have tried nearly every combination of framerate 0,30, output file extension .avi, .mp4, .h264, .mkv, None and codec 0, "H.264", "RAW ", "DBI ", " ", "MPEG", "COPY", "NONE".

  out = cv2.videoWriter("output_file.avi",cv2.CAP_FFMPEG,cv2.VideoWriter_fourcc('H','2','6','4'),30,(frame_width,frame_height))

  Is it possible to use the FFmpeg stream copy within OpenCV to save video data without encoding it ? If not, I will change tact to running shell commands from within Python, but I’d prefer the former approach if feasible.

• How to fix "moov atom not found" error in ffmpeg ?

  21 mai, par user10664722

  Well, I'm using this project to create a Telegram bot which receives URL of .mp4 files, downloads them on server and uploads them to Telegram.

  


  Issue

  


  Everything works fine so far, except converting certain .mp4 files.

  


  For example if I use a sample .mp4 video from https://sample-videos.com/. Then it works fine and converts it successfully.

  


  But if I use a video from some random website which is also simple .mp4 file, it doesn't work and throws this error :

  


  


  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x1932420] Format mov,mp4,m4a,3gp,3g2,mj2 detected only with low score of 1, misdetection possible !
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x1932420] moov atom not found
data/720P_1500K_210306701.mp4 : Invalid data found when processing input