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• Ffmpeg - Convert Wav to OGG on Android (wrong metadata on some devices)

  13 décembre 2016, par Pepa Zapletal

  I have in the app Wav file and I want to convert it to the OGG format.

  I’m using ffmpeg library for it and this command :

  ffmpeg -i /storage/emulated/0/Test.wav -c:a libvorbis -q:a 5 /storage/emulated/0/Test.ogg

  But I have problem play correctly the generated OGG file on some Android devices. If I open this file in standard MediaPlayer then I get the wrong file duration, seeking is also not working very well BUT the file is played whole and correctly. This happens for example on Huawei M2 with Android 5.1 but on Samsung Galaxy S5 (with Android 5.1) the generated file is OK and playing is also OK.

  Do you have some idea where can be a problem ?

  Full output from ffmpeg :

  ffmpeg version n2.6.2 Copyright (c) 2000-2015 the FFmpeg developers
  
  built with gcc 4.9 (GCC) 20140827 (prerelease)
  
    configuration: --target-os=linux --cross-prefix=/home/chrono/ffmpeg-android/toolchain-android/bin/arm-linux-androideabi- --arch=arm --enable-runtime-cpudetect --sysroot=/home/chrono/ffmpeg-android/toolchain-android/sysroot --enable-pic --enable-libx264 --enable-libass --enable-libfreetype --enable-libfribidi --enable-libmp3lame --enable-libopus --enable-libvorbis --enable-libvpx --enable-libtheora --enable-libfdk-aac --enable-nonfree --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/chrono/ffmpeg-android/ffmpeg-pkg-config --prefix=/home/chrono/ffmpeg-android/build/armeabi-v7a --extra-cflags='-I/home/chrono/ffmpeg-android/toolchain-android/include -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all -march=armv7-a -mfpu=vfpv3-d16 -mfloat-abi=softfp' --extra-ldflags='-L/home/chrono/ffmpeg-android/toolchain-android/lib -Wl,-z,relro -Wl,-z,now -pie -Wl,--fix-cortex-a8' --extra-libs='-lpng -lexpat -lm' --extra-cxxflags=
  
    libavutil      54. 20.100 / 54. 20.100
  
    libavcodec     56. 26.100 / 56. 26.100
  
    libavformat    56. 25.101 / 56. 25.101
  
    libavdevice    56.  4.100 / 56.  4.100
  
    libavfilter     5. 11.102 /  5. 11.102
  
    libswscale      3.  1.101 /  3.  1.101
  
    libswresample   1.  1.100 /  1.  1.100
  
    libpostproc    53.  3.100 / 53.  3.100
  
  Guessed Channel Layout for  Input Stream #0.0 : stereo
  
   Input #0, wav, from '/storage/emulated/0/IAMDJ/MyLoops/mix folder/Test.wav':
  
     Metadata:
  
       encoder         : Lavf56.25.101
  
     Duration: 00:00:16.01, bitrate: 1411 kb/s
  
       Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 44100 Hz, 2 channels, s16, 1411 kb/s
  
   Output #0, ogg, to '/storage/emulated/0/Test.ogg':
  
     Metadata:
  
       encoder         : Lavf56.25.101
  
       Stream #0:0: Audio: vorbis (libvorbis), 44100 Hz, stereo, fltp
  
    Metadata:
  
        encoder         : Lavc56.26.100 libvorbis
  
  Stream mapping:
  
  Stream #0:0 -> #0:0 (pcm_s16le (native) -> vorbis (libvorbis))
  
  Press [q] to stop, [?] for help
  
  size=       4kB time=00:00:01.00 bitrate=  35.0kbits/s    
  
  size=      27kB time=00:00:02.01 bitrate= 107.8kbits/s    
  
  size=      48kB time=00:00:03.04 bitrate= 129.3kbits/s    
  
  size=      70kB time=00:00:04.06 bitrate= 140.3kbits/s    
  
  size=      91kB time=00:00:05.14 bitrate= 144.9kbits/s    
  
  size=     113kB time=00:00:06.15 bitrate= 149.7kbits/s    
  
  video:0kB audio:344kB subtitle:0kB other streams:0kB global headers:4kB muxing overhead: 1.994279%

  Edit : here is the result file : Test.ogg

  Edit 2 : Maybe there can be a problem with standard MediaPlayer but another Ogg file is played correctly.

• FFMPEG image to video showing blank video

  18 avril 2017, par Ravi Rupareliya

  Here is my command to create a video from multiple images.

  File f = new File(Environment.getExternalStorageDirectory() + "/abc.mp4");
  
  
  
  try {
  
      f.createNewFile();
  
      ffmpeg.execute(new String[]{"-y","-r","1/5","-i","" + "/" + "image%01d.jpg","-pix_fmt","yuv420p","-c:v","libx264","-crf","23","-s","640x480",f.getPath()}, listener);
  
  } catch (Exception e) {
  
      e.printStackTrace();
  
  }

  I have multiple images available at with having names like image1.jpg, image2.jpg etc etc.

  It is creating video file with some 100-200 KB but it showing blank images in VLC player.

  When i try to run it with Windows Media Player, it only runs if it is in repeat mode from player, otherwise it is not playing.

  Output in onSuccess()

  [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/i686-linux-android- --arch=x86 --cpu=i686 --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/x86 --extra-cflags='-I/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/include -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all -march=i686' --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
  
  [mjpeg @ 0xb97270a0] Changing bps to 8
  
  Input #0, image2, from '/storage/emulated/0/Download/image%01d.jpg':
  
  Duration: 00:00:00.08, start: 0.000000, bitrate: N/A
  
  Stream #0:0: Video: mjpeg, yuvj420p(pc, bt470bg/unknown/unknown), 464x317 [SAR 1:1 DAR 464:317], 25 tbr, 25 tbn, 25 tbc
  
  [swscaler @ 0xb9741480] deprecated pixel format used, make sure you did set range correctly
  
  [libx264 @ 0xb97287c0] using SAR=348/317
  
  [libx264 @ 0xb97287c0] using cpu capabilities: none!
  
  [libx264 @ 0xb97287c0] profile High, level 2.2
  
  [libx264 @ 0xb97287c0] 264 - core 148 - H.264/MPEG-4 AVC codec - Copyleft 2003-2015 - 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=6 lookahead_threads=1 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=1 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 '/storage/emulated/0/abc.mp4':
  
  Metadata:
  
  encoder         : Lavf57.25.100
  
  Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 640x480 [SAR 348:317 DAR 464:317], q=-1--1, 0.20 fps, 16384 tbn, 0.20 tbc
  
  Metadata:
  
  encoder         : Lavc57.24.102 libx264
  
  Side data:
  
  unknown side data type 10 (24 bytes)
  
  Stream mapping:
  
  Stream #0:0 -> #0:0 (mjpeg (native) -> h264 (libx264))
  
  Press [q] to stop, [?] for help
  
  Input stream #0:0 frame changed from size:464x317 fmt:yuvj420p to size:313x470 fmt:yuvj420p
  
  [swscaler @ 0xb9752fc0] deprecated pixel format used, make sure you did set range correctly
  
  frame=    2 fps=0.0 q=-1.0 Lsize=      64kB time=00:00:10.00 bitrate=  52.4kbits/s speed=34.3x    
  
  video:63kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.310563%
  
  [libx264 @ 0xb97287c0] frame I:1     Avg QP:14.14  size: 23785
  
  [libx264 @ 0xb97287c0] frame P:1     Avg QP:17.01  size: 40246
  
  [libx264 @ 0xb97287c0] mb I  I16..4:  3.3% 82.2% 14.4%
  
  [libx264 @ 0xb97287c0] mb P  I16..4:  2.0% 88.1%  9.9%  P16..4:  0.0%  0.0%  0.0%  0.0%  0.0%    skip: 0.0%
  
  [libx264 @ 0xb97287c0] 8x8 transform intra:85.2%
  
  [libx264 @ 0xb97287c0] coded y,uvDC,uvAC intra: 93.3% 82.2% 71.0%
  
  [libx264 @ 0xb97287c0] i16 v,h,dc,p:  5%  3%  3% 89%
  
  [libx264 @ 0xb97287c0] i8 v,h,dc,ddl,ddr,vr,

• How to reduce conversion/compression time in FFmpeg and How to merge command ?

  18 mai 2017, par Patel Pinkal

  I want to reduce time taken to create new video after adding text in original video using FFmpeg
  I had tried to search and I found this code given below for reducing time.

   -y -i /sdcard/videokit/in.mp4 -strict experimental -vcodec libx264 -preset ultrafast -crf 24 -acodec aac -ar 44100 -ac 2 -b 36000k -s 1280x720 -aspect 16:9 -metadata:s:v:0 rotate=0 /sdcard/videokit/out3.mp4

  Now, I want to add text in video and it is done in FFmpeg, by this command and its 100% working.

    String[] addTextCommand = {
  
              "-i",
  
              "" + realFilePath,
  
              "-vf",
  
              "drawtext=fontsize=50:fontfile=/storage/emulated/0/Download/Cerbetica-regular.ttf:fontcolor=red:text='"
  
                      + strText +
  
                      "':x=0:y=0: box=1: boxcolor=black@0.5:boxborderw=10: x=0: y=(h-text_h)/2",
  
              "-strict",
  
              "-2",
  
              outputFilePath};

  Now my problem is how do I merge this two code and make one single command to make an edited video and also take less time to create a new video. In this, I have tried this command but it’s not working.

     String[] addTextCommand = {
  
              "-i",
  
              "" + realVideoPath,
  
              "-vf",
  
              "-c:v", "libx264",
  
              "-preset", "ultrafast",
  
              "-crf", "24",
  
              "-acodec", "aac",
  
              "-ar", "44100",
  
              "-ac", "2",
  
              "-b", "36000k",
  
              "-s", "1280x720",
  
              "-aspect", "16:9",
  
              "-metadata:s:v:0 rotate=0",
  
              "drawtext=fontsize=50:fontfile=/storage/emulated/0/Download/Cerbetica-regular.ttf:fontcolor=red:text='"
  
                      + strText +
  
                      "':x=0:y=0: box=1: boxcolor=black@0.5:boxborderw=10: x=0: y=(h-text_h)/2",
  
              "-strict",
  
              "-2",
  
              outputFilePath};

  If anyone has an idea how to make command of FFmpeg please describe it and explain how to use it.

  Using command of @Mulvya I got this in the console.

       D/MainActivity: FAILED with output : WARNING: linker: /data/user/0/com.inheritx.videoprocessing/files/ffmpeg has text relocations. This is wasting memory and prevents security hardening. Please fix.
  
                     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/i686-linux-android- --arch=x86 --cpu=i686 --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/x86 --extra-cflags='-I/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/include -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all -march=i686' --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
  
                     Unrecognized option '2'.
  
                     Error splitting the argument list: Option not found
  
     D/MainActivity: Finished command : ffmpeg -i
  
     D/MainActivity: Finished command : ffmpeg /storage/emulated/0/Download/spacetestSMALL_512kb.mp4
  
     D/MainActivity: Finished command : ffmpeg -vf
  
     D/MainActivity: Finished command : ffmpeg drawtext=fontsize=50:fontfile=/system/fonts/DroidSans.ttf:fontcolor=red:text='Hello':x=0:y=0: box=1: boxcolor=black@0.5:boxborderw=10: x=0: y=(h-text_h)/2
  
     D/MainActivity: Finished command : ffmpeg -c:v
  
     D/MainActivity: Finished command : ffmpeg libx264
  
     D/MainActivity: Finished command : ffmpeg -preset
  
     D/MainActivity: Finished command : ffmpeg ultrafast
  
     D/MainActivity: Finished command : ffmpeg -crf
  
     D/MainActivity: Finished command : ffmpeg 24
  
     D/MainActivity: Finished command : ffmpeg -acodec
  
     D/MainActivity: Finished command : ffmpeg aac
  
     D/MainActivity: Finished command : ffmpeg -ar
  
     D/MainActivity: Finished command : ffmpeg 44100
  
     D/MainActivity: Finished command : ffmpeg -s
  
     D/MainActivity: Finished command : ffmpeg 1280x720
  
     D/MainActivity: Finished command : ffmpeg -aspect
  
     D/MainActivity: Finished command : ffmpeg 16:9
  
     D/MainActivity: Finished command : ffmpeg -metadata:s:v:0 rotate=0
  
     D/MainActivity: Finished command : ffmpeg -strict
  
     D/MainActivity: Finished command : ffmpeg -2
  
     D/MainActivity: Finished command : ffmpeg /storage/emulated/0/Movies/add_text25.mp4