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• libavfilter/dnn/dnn_backend_native : find the input operand according to input name

  20 septembre 2019, par Guo, Yejun

  libavfilter/dnn/dnn_backend_native : find the input operand according to input name
  Signed-off-by : Guo, Yejun <yejun.guo@intel.com>
  
  Signed-off-by : Pedro Arthur <bygrandao@gmail.com>
  

  • [DH] libavfilter/dnn/dnn_backend_native.c

• Record Screen using ffmpeg doesn't work in tomcat server(Could not find codec parameters for stream 0)

  4 septembre 2019, par Norhan Mohamed

  I have the following problem,when I executed the below FFMPEG terminal command in command it prompt successfully.
  
  

      C:\\ffmpeg\\bin\\ffmpeg.exe -f gdigrab -i desktop -c:v libx264 -analyzeduration 15M -probesize 15M -pix_fmt yuv420p -loglevel 99 C:\\ffmpeg\\bin\\video.mp4

  but I have a problem while running a command from a java web application.I used runtime.exec(). It’s working fine at Netbeans. But not working at all after deploying on tomcat server.
  
  Here is my code :

  String command = "C:\\ffmpeg\\bin\\"
  
              + "ffmpeg.exe -f gdigrab -i desktop -c:v libx264 -analyzeduration 15M -probesize 15M -pix_fmt yuv420p -loglevel 99 C:\\ffmpeg\\bin\\video.mp4";
  
  
  
      System.out.println("command = " + command);
  
      try {
  
          Process p = Runtime.getRuntime().exec(command);
  
  
  
          final InputStreamReader isr
  
                  = new InputStreamReader(p.getErrorStream());
  
          Thread th = new Thread() {
  
              public void run() {
  
                  try {
  
                      BufferedReader br = new BufferedReader(isr);
  
                      String line = null;
  
                      while ((line = br.readLine()) != null) {
  
                          System.out.println(line);
  
                      }
  
                  } catch (Exception ex) {
  
                  }
  
              }
  
          };
  
          th.start();
  
      } catch (IOException ex) {
  
          System.out.println("Error 1 : " + ex.getMessage());
  
      } catch (Exception ex) {
  
          System.out.println("Error 2 : " + ex.getMessage());
  
      }

  And here is log for error

  ffmpeg version 4.1.1 Copyright (c) 2000-2019 the FFmpeg developers
  
  built with gcc 8.2.1 (GCC) 20190212
  
  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-amf --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth
  
  libavutil      56. 22.100 / 56. 22.100
  
  libavcodec     58. 35.100 / 58. 35.100
  
  libavformat    58. 20.100 / 58. 20.100
  
  libavdevice    58.  5.100 / 58.  5.100
  
  libavfilter     7. 40.101 /  7. 40.101
  
  libswscale      5.  3.100 /  5.  3.100
  
  libswresample   3.  3.100 /  3.  3.100
  
  libpostproc    55.  3.100 / 55.  3.100
  
  Splitting the commandline.
  
  Reading option '-f' ... matched as option 'f' (force format) with argument 'gdigrab'.
  
  Reading option '-i' ... matched as input url with argument 'desktop'.
  
  Reading option '-c:v' ... matched as option 'c' (codec name) with argument 'libx264'.
  
  Reading option '-analyzeduration' ... matched as AVOption 'analyzeduration' 
  
  with argument '15M'.
  
  Reading option '-probesize' ... matched as AVOption 'probesize' with argument '15M'.
  
  Reading option '-pix_fmt' ... matched as option 'pix_fmt' (set pixel format) with argument 'yuv420p'.
  
  Reading option '-loglevel' ... matched as option 'loglevel' (set logging level) with argument '99'.
  
  Reading option 'C:\ffmpeg\bin\video.mp4' ... matched as output url.
  
  Finished splitting the commandline.
  
  Parsing a group of options: global .
  
  Applying option loglevel (set logging level) with argument 99.
  
  Successfully parsed a group of options.
  
  Parsing a group of options: input url desktop.
  
  Applying option f (force format) with argument gdigrab.
  
  Successfully parsed a group of options.
  
  Opening an input file: desktop.
  
  [gdigrab @ 0000007c2a72ad00] Capturing whole desktop as 1024x768x32 at (0,0)
  
  [gdigrab @ 0000007c2a72ad00] Failed to capture image (error 5)
  
  [gdigrab @ 0000007c2a72ad00] stream 0: start_time: -9223372036854.775 duration: -9223372036854.775
  
  [gdigrab @ 0000007c2a72ad00] format: start_time: -9223372036854.775 duration: -9223372036854.775 bitrate=754233 kb/s
  
  [gdigrab @ 0000007c2a72ad00] Could not find codec parameters for stream 0 (Video: bmp, 1 reference frame, none, 754233 kb/s): unspecified size
  
  Consider increasing the value for the 'analyzeduration' and 'probesize' options
  
  Input #0, gdigrab, from 'desktop':
  
  Duration: N/A, bitrate: 754233 kb/s
  
  Stream #0:0, 0, 1/1000000: Video: bmp, 1 reference frame, none, 754233 kb/s, 29.97 fps, 1000k tbr, 1000k tbn, 1000k tbc
  
  Successfully opened the file.
  
  Parsing a group of options: output url C:\ffmpeg\bin\video.mp4.
  
  Applying option c:v (codec name) with argument libx264.
  
  Applying option pix_fmt (set pixel format) with argument yuv420p.
  
  Successfully parsed a group of options.
  
  Opening an output file: C:\ffmpeg\bin\video.mp4.
  
  Output #0, mp4, to 'C:\ffmpeg\bin\video.mp4':
  
  Output file #0 does not contain any stream

  Can anyone help me to get out of this issue.

  Thanks in advance.

• Could not find codec parameters for stream 0 (Video : png, none)

  22 août 2019, par Vipul Solanki

  I’m trying to overlap png over jpg but getting bellow error. I’ve tried in FFMPEG version 3.4.6 and GCC 5.5.0

  ffmpeg -i Emily-Bett-Rickards.jpg -i abc.png -filter_complex "[0:v][1:v] overlay=(W-w)/2:(H-h)/2:enable='between(t,0,20)'" -pix_fmt yuv420p -c:a copy bc38775d-278d-41f0-821f-89917475200b-meta.jpg
  
  ffmpeg version N-94608-gaeae628 Copyright (c) 2000-2019 the FFmpeg developers
  
    built with gcc 5.5.0 (Ubuntu 5.5.0-12ubuntu1~16.04) 20171010
  
    configuration: --enable-decoder='mjpeg,png' --enable-demuxer=image2 --enable-protocol=file
  
    libavutil      56. 33.100 / 56. 33.100
  
    libavcodec     58. 55.100 / 58. 55.100
  
    libavformat    58. 31.101 / 58. 31.101
  
    libavdevice    58.  9.100 / 58.  9.100
  
    libavfilter     7. 58.100 /  7. 58.100
  
    libswscale      5.  6.100 /  5.  6.100
  
    libswresample   3.  6.100 /  3.  6.100
  
  Input #0, image2, from 'Emily-Bett-Rickards.jpg':
  
    Duration: 00:00:00.04, start: 0.000000, bitrate: 34289 kb/s
  
      Stream #0:0: Video: mjpeg (Progressive), yuvj444p(pc, bt470bg/unknown/unknown), 600x400, 25 tbr, 25 tbn, 25 tbc
  
  [png_pipe @ 0x389fdc0] Could not find codec parameters for stream 0 (Video: png, none): unspecified size
  
  Consider increasing the value for the 'analyzeduration' and 'probesize' options
  
  Input #1, png_pipe, from 'abc.png':
  
    Duration: N/A, bitrate: N/A
  
      Stream #1:0: Video: png, none, 25 tbr, 25 tbn, 25 tbc
  
  Stream mapping:
  
    Stream #0:0 (mjpeg) -> overlay:main
  
    Stream #1:0 (?) -> overlay:overlay
  
    overlay -> Stream #0:0 (mjpeg)
  
  Decoder (codec png) not found for input stream #1:0

  Any help would be appreciated.