4 Replies Latest reply on Dec 13, 2017 10:38 AM by MateuszF

    Ready-To-Fly video capture issues

    MateuszF

      Hi,

      I'm working with RTF drone with RealSense R200 and I'm trying to capture video stream.

       

      When I type command on my drone:

      sh-4.3# gst-launch-1.0 v4l2src device=/dev/video13 ! video/x-raw, width=640, height=480, framerate=30/1 ! xvimagesink
      I get video stream in uppel left corner of my screen.

      But when I try to save the stream using this command:
      sh-4.3# gst-launch-1.0 v4l2src device=/dev/video13 ! video/x-raw, width=640, height=480, framerate=30/1 ! filesink location=video13.mp4

      and try to open it (after copying onto my computer) via VLC media player, it doesn't work.

       

      So I tried capturing images with this command:

      sh-4.3# C=10 INPUT=1 MODE=PREVIEW /home/root/sample-apps/capturev4l2/capturev4l2 --userp -d /dev/video13
      Then I copied output files onto my computer and tried to convert them with ffmpeg with command:

      my-linux> ffmpeg -f rawvideo -s 640x480 -pix_fmt yuv420p -i Image-video2-620x480-7.yuv420 test.jpg
      I get this output:

       

      ffmpeg version 2.8.11-0ubuntu0.16.04.1 Copyright (c) 2000-2017 the FFmpeg developers

        built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.4) 20160609

        configuration: --prefix=/usr --extra-version=0ubuntu0.16.04.1 --build-suffix=-ffmpeg --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --cc=cc --cxx=g++ --enable-gpl --enable-shared --disable-stripping --disable-decoder=libopenjpeg --disable-decoder=libschroedinger --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-librtmp --enable-libschroedinger --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxvid --enable-libzvbi --enable-openal --enable-opengl --enable-x11grab --enable-libdc1394 --enable-libiec61883 --enable-libzmq --enable-frei0r --enable-libx264 --enable-libopencv

        libavutil      54. 31.100 / 54. 31.100

        libavcodec     56. 60.100 / 56. 60.100

        libavformat    56. 40.101 / 56. 40.101

        libavdevice    56.  4.100 / 56.  4.100

        libavfilter     5. 40.101 /  5. 40.101

        libavresample   2.  1.  0 /  2.  1.  0

        libswscale      3.  1.101 /  3.  1.101

        libswresample   1.  2.101 /  1.  2.101

        libpostproc    53.  3.100 / 53.  3.100

      [rawvideo @ 0xdd9400] Estimating duration from bitrate, this may be inaccurate

      Input #0, rawvideo, from 'Image-video2-640x480-7.yuv420':

        Duration: 00:00:00.04, start: 0.000000, bitrate: 92569 kb/s

          Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 640x480, 92160 kb/s, 25 tbr, 25 tbn, 25 tbc

      [swscaler @ 0xdeacc0] deprecated pixel format used, make sure you did set range correctly

      Output #0, image2, to 'test.jpg':

        Metadata:

          encoder         : Lavf56.40.101

          Stream #0:0: Video: mjpeg, yuvj420p(pc), 640x480, q=2-31, 200 kb/s, 25 fps, 25 tbn, 25 tbc

          Metadata:

            encoder         : Lavc56.60.100 mjpeg

      Stream mapping:

        Stream #0:0 -> #0:0 (rawvideo (native) -> mjpeg (native))

      Press [q] to stop, [?] for help

      [rawvideo @ 0xde2ba0] Invalid buffer size, packet size 2048 < expected frame_size 460800

      Error while decoding stream #0:0: Invalid argument

      frame=    1 fps=0.0 q=1.6 Lsize=N/A time=00:00:00.04 bitrate=N/A   

      video:6kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown

       

      I also tried using website "rawpixels.net" to convert file, but it didn't work.


      My intel aero version is 1.6.0


      How can I get converted file (image and video)?