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  • java Runtime.getRuntime().exec(ffmpeg) ceases processing for long video files

    6 janvier 2016, par metzojack

    I’m using Java Runtime.getRuntime().exec(ffmpeg) to execute an ffmpeg command to transcode video from any format to mp4 format. When command starts, ps -ef shows ffmpeg process and top shows that ffmpeg uses most of cpu (90%). When input video for ffmpeg is short (less than 4 mn) the Runtime.getRuntime().exec(ffmpeg) command runs well. But when trying to transcode full HD video that ffmpeg command need more than 10 minutes to be complete, an unknown problem happens around 5 minutes after ffmpeg command starts. ps -ef command still shows ffmpeg process even after many hours, but top command shows that ffmpeg process doesn’t use more that 1% of cpu. So Runtime.getRuntime().exec(ffmpeg) never finishes.

  • Ffmpeg processing, overlaying images over videos

    14 janvier 2016, par Vikash

    I am using following command, to input some images on screen recorded video. I want to show where I am touching the screen.

    I am using following ffmpeg command

    ffmpeg -analyzeduration 10000 -i /storage/emulated/0/video/screenCapture.mp4 -i /storage/emulated/0/Images/image1.jpg -i /storage/emulated/0/Images/image1.jpg -i /storage/emulated/0/Images/image1.jpg -i /storage/emulated/0/Images/image1.jpg -i /storage/emulated/0/Images/image1.jpg -i /storage/emulated/0/Images/image1.jpg -i /storage/emulated/0/Images/image1.jpg -i /storage/emulated/0/Images/image2.jpg -filter_complex [0:v]setpts=PTS-STARTPTS[0] ;[1:v]setpts=PTS-STARTPTS[i1] ;[2:v]setpts=PTS-STARTPTS[i2] ;[3:v]setpts=PTS-STARTPTS[i3] ;[4:v]setpts=PTS-STARTPTS[i4] ;[5:v]setpts=PTS-STARTPTS[i5] ;[6:v]setpts=PTS-STARTPTS[i6] ;[7:v]setpts=PTS-STARTPTS[i7] ;[9:v]setpts=PTS-STARTPTS[i9] ;[0][i1]overlay=119.834:410.679:enable=’between(t,1.017,1.517)’1 ;1[i2]overlay=11.983:259.297:enable=’between(t,2.306,2.806)’[2] ;[2][i3]overlay=87.239:273.786:enable=’between(t,2.740,3.240)’[3] ;[3][i4]overlay=211.866:292.771:enable=’between(t,3.175,3.675)’[4] ;[4][i5]overlay=301.022:312.256:enable=’between(t,3.543,4.043)’[5] ;[5][i6]overlay=0.000:187.853:enable=’between(t,4.306,4.806)’[6] ;[6][i7]overlay=98.264:189.852:enable=’between(t,4.636,5.136)’[7] ;[7][i9]overlay=30.198:32.475:enable=’between(t,6.295,8.295)’[8] -map [8] -y -movflags +faststart -c:v libx264 -preset ultrafast /storage/emulated/0/video/OutputVideo.mp4

    but the points are not correctly matched. I have done the calculations also on the basis of resolution. But the points are not attached with reference to videos. Some points are outside the video surface.

    So do i need to set some reference point or ffmpeg with set the video/first input as reference

    OR

    ffmpeg will set some other background as reference. I dont know on what basis the points are coming to left of the video surface. I am also attaching the screenshot of result

    Here is the result.
    enter image description here

  • FFMPEG - Invalid data found when processing input

    14 janvier 2016, par Siva Prasanna

    I want to play an RTSP live stream that I get internally. I’m using ffplay to play this. And this is the command that I use :
    ffplay -i "rtsp://test.vibrtech.com/mov/video.sav?MAC=00C2100F124&channel=2&GUID=betauser", but when I execute, I get Invalid data found when processing input error. The complete error output is given below :

    D:\..>ffplay -i "rtsp://test.vibrtech.com/mov/video.sav?MAC=00C2100F124&channel=2&GUID=betauser"
    
ffplay version N-77816-g9ca64c3 Copyright (c) 2003-2016 the FFmpeg developers
    
built with gcc 5.2.0 (GCC)
    
configuration: --enable-gpl --enable-version3 --disable-w32threads 
    
--enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls 
    
--enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca 
    
--enable-libdcadec --enable-libfreetype --enable-libgme --enable-libgsm
    
--enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb 
    
--enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp 
    
--enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora
    
--enable-libtwolame --enable-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc
    
 --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp
    
 --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzimg
    
--enable-lzma --enable-decklink --enable-zlib
    
libavutil      55. 13.100 / 55. 13.100
    
libavcodec     57. 22.100 / 57. 22.100
    
libavformat    57. 21.101 / 57. 21.101
    
libavdevice    57.  0.100 / 57.  0.100
    
libavfilter     6. 23.100 /  6. 23.100
    
libswscale      4.  0.100 /  4.  0.100
    
libswresample   2.  0.101 /  2.  0.101
    
libpostproc    54.  0.100 / 54.  0.100
    
rtsp://test.vibrtech.com/mov/video.sav?MAC=00C2100F124&channel=2&GUID=betauser: Invalid data found when processing input

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