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• Arguments set but not used in GPAC

  30 avril 2022, par M faiz zeeshann

  I am trying to do the tiling of a 360-degree video with the following command.

  


  MP4Box -dash 1000 test.mp4 :"desc_as="

  


  it creates an MPD file but without tiles and gives the following errors.

  


  Arg segdur set but not used,
Arg mpeg set but not used,
Arg dash set but not used,
Arg srd set but not used,
Arg 2014 set but not used,

  


• Android-FFmpeg adding subtitle to mp4 video does not work

  7 septembre 2022, par ebdaa app

  I am trying to add srt file to a mp4 video using android mobile-ffmpeg , the code works with no error but the generated video does not contain the subtitle

  


  here is the code :

  


   String cmd = "-i " + videoPath + " -vf subtitles=\"" + subtitlePath + ":force_style='Alignment=10,Fontsize=18'\" " + OutputVideoPath;
 FFmpeg.executeAsync(cmd, new ExecuteCallback() {
    @Override
    public void apply(final long executionId, final int returnCode) {
         if (returnCode == RETURN_CODE_SUCCESS) {
         } else {
             
         }
    }
 });


  


  here are the logs

  


  I/mobile-ffmpeg: ffmpeg version v4.4-dev-416
     Copyright (c) 2000-2020 the FFmpeg developers
I/mobile-ffmpeg:   built with Android (6454773 based on r365631c2) clang version 9.0.8 (https://android.googlesource.com/toolchain/llvm-project 98c855489587874b2a325e7a516b99d838599c6f) (based on LLVM 9.0.8svn)
      configuration: --cross-prefix=arm-linux-androideabi- --sysroot=/files/android-sdk/ndk/21.3.6528147/toolchains/llvm/prebuilt/linux-x86_64/sysroot --prefix=/home/taner/Projects/mobile-ffmpeg/prebuilt/android-arm/neon/ffmpeg --pkg-config=/usr/bin/pkg-config --enable-version3 --arch=armv7-a --cpu=armv7-a --cc=armv7a-linux-androideabi24-clang --cxx=armv7a-linux-androideabi24-clang++ --extra-libs='-L/home/taner/Projects/mobile-ffmpeg/prebuilt/android-arm/neon/cpu-features/lib -lndk_compat' --target-os=android --enable-neon --enable-asm --enable-inline-asm --build-suffix=_neon --enable-cross-compile --enable-pic --enable-jni --enable-optimizations --enable-swscale --enable-shared --enable-v4l2-m2m --disable-outdev=fbdev --disable-indev=fbdev --enable-small --disable-openssl --disable-xmm-clobber-test --disable-debug --enable-lto --disable-neon-clobber-test --disable-programs --disable-postproc --disable-doc --disable-htmlpages --disable-manpages --disable-podpages --disable-txtpages --disable-static --disable-sndio --disable-schannel --disable-securetransport --disable-xlib --disable-cuda --disable-cuvid --disable-nvenc --disable-vaapi --disable-vdpau --disable-videotoolbox --disable-audiotoolbox --disable-appkit --disable-alsa --disable-cuda --disable-cuvid --disable-nvenc --disable-vaapi --disable-vdpau --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-gmp --enable-gnutls --enable-libmp3lame --enable-libass --enable-iconv --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libxml2 --enable-libopencore-amrnb --enable-libshine --enable-libspeex --enable-libwavpack --enable-libkvazaar --enable-libilbc --enable-libopus --enable-libsnappy --enable-libsoxr --enable-libaom --enable-libtwolame --disable-sdl2 --enable-libvo-amrwbenc --enable-zlib --enable-mediacodec
I/mobile-ffmpeg:   libavutil      56. 55.100 / 56. 55.100
      libavcodec     58. 96.100 / 58. 96.100
I/mobile-ffmpeg:   libavformat    58. 48.100 / 58. 48.100
      libavdevice    58. 11.101 / 58. 11.101
      libavfilter     7. 87.100 /  7. 87.100
      libswscale      5.  8.100 /  5.  8.100
I/mobile-ffmpeg:   libswresample   3.  8.100 /  3.  8.100
I/mobile-ffmpeg: Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/storage/emulated/0/Download/7b85de4d-6af2-4eea-be9d-0d13c7f7819f/001001.mp4':
      Metadata:
        major_brand     : 
I/mobile-ffmpeg: isom
        minor_version   : 
I/mobile-ffmpeg: 512
        compatible_brands: 
I/mobile-ffmpeg: isomiso2mp41
I/mobile-ffmpeg:     encoder         : 
    Lavf58.48.100
I/mobile-ffmpeg:   Duration: 
    00:00:29.60
    , start: 
I/mobile-ffmpeg: 0.000000
    , bitrate: 
    466 kb/s
I/mobile-ffmpeg:     Stream #0:0
    (und)
I/mobile-ffmpeg: : Video: mpeg4 (mp4v / 0x7634706D), yuv420p, 640x480 [SAR 1:2 DAR 2:3], 336 kb/s
    , 
    5 fps, 
I/mobile-ffmpeg: 5 tbr, 
    10240 tbn, 
    5 tbc
I/mobile-ffmpeg:  (default)
I/mobile-ffmpeg:     Metadata:
          handler_name    : 
    VideoHandler
I/mobile-ffmpeg:     Stream #0:1
I/mobile-ffmpeg: (und)
    : Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s
     (default)
I/mobile-ffmpeg:     Metadata:
I/mobile-ffmpeg:       handler_name    : 
    SoundHandler
W/mobile-ffmpeg: Codec AVOption preset (Configuration preset) specified for output file #0 (/storage/emulated/0/Download/QuranYaser/7b85de4d-6af2-4eea-be9d-0d13c7f7819f/001001_sub.mp4) has not been used for any stream. The most likely reason is either wrong type (e.g. a video option with no video streams) or that it is a private option of some encoder which was not actually used for any stream.
I/mobile-ffmpeg: Stream mapping:
I/mobile-ffmpeg:   Stream #0:0 -> #0:0
I/mobile-ffmpeg:  (mpeg4 (native) -> mpeg4 (native))
I/mobile-ffmpeg:   Stream #0:1 -> #0:1
     (aac (native) -> aac (native))
I/mobile-ffmpeg: Press [q] to stop, [?] for help
    frame=    0 fps=0.0 q=0.0 size=       0kB time=-577014:32:22.77 bitrate=  -0.0kbits/s speed=N/A    
I/mobile-ffmpeg: [Parsed_subtitles_0 @ 0xf35ee820] Shaper: FriBidi 1.0.9 (SIMPLE)
I/mobile-ffmpeg: [Parsed_subtitles_0 @ 0xf35ee820] 
W/mobile-ffmpeg: [Parsed_subtitles_0 @ 0xf35ee820] No usable fontconfig configuration file found, using fallback.
    [Parsed_subtitles_0 @ 0xf35ee820] 
I/mobile-ffmpeg: [Parsed_subtitles_0 @ 0xf35ee820] Using font provider fontconfig
    [Parsed_subtitles_0 @ 0xf35ee820] 
W/mobile-ffmpeg: [graph 0 input from stream 0:0 @ 0xf35ee880] sws_param option is deprecated and ignored
I/mobile-ffmpeg: Output #0, mp4, to '/storage/emulated/0/Download/QuranYaser/7b85de4d-6af2-4eea-be9d-0d13c7f7819f/001001_sub.mp4':
I/mobile-ffmpeg:   Metadata:
        major_brand     : 
    isom
I/mobile-ffmpeg:     minor_version   : 
    512
I/mobile-ffmpeg:     compatible_brands: 
I/mobile-ffmpeg: isomiso2mp41
        encoder         : 
I/mobile-ffmpeg: Lavf58.48.100
        Stream #0:0
I/mobile-ffmpeg: (und)
    : Video: mpeg4 (mp4v / 0x7634706D), yuv420p, 640x480 [SAR 1:2 DAR 2:3], q=2-31, 200 kb/s
    , 
I/mobile-ffmpeg: 5 fps, 
I/mobile-ffmpeg: 10240 tbn, 
    5 tbc
I/mobile-ffmpeg:  (default)
        Metadata:
I/mobile-ffmpeg:       handler_name    : 
    VideoHandler
          encoder         : 
I/mobile-ffmpeg: Lavc58.96.100 mpeg4
        Side data:
I/mobile-ffmpeg:       
    cpb: 
    bitrate max/min/avg: 0/0/200000 buffer size: 0 
    vbv_delay: N/A
I/mobile-ffmpeg:     Stream #0:1
    (und)
I/mobile-ffmpeg: : Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s
     (default)
        Metadata:
I/mobile-ffmpeg:       handler_name    : 
    SoundHandler
I/mobile-ffmpeg:       encoder         : 
    Lavc58.96.100 aac
I/mobile-ffmpeg: frame=   11 fps=0.0 q=2.0 size=       0kB time=00:00:03.59 bitrate=   0.1kbits/s speed=7.16x    
I/mobile-ffmpeg: frame=   30 fps= 30 q=2.0 size=     256kB time=00:00:07.47 bitrate= 280.5kbits/s speed=7.44x    
I/mobile-ffmpeg: frame=   50 fps= 33 q=2.0 size=     512kB time=00:00:11.54 bitrate= 363.5kbits/s speed=7.67x    
I/mobile-ffmpeg: frame=   71 fps= 35 q=2.0 size=     768kB time=00:00:15.71 bitrate= 400.2kbits/s speed=7.83x    
I/mobile-ffmpeg: frame=   92 fps= 37 q=2.0 size=    1024kB time=00:00:19.78 bitrate= 424.0kbits/s speed=7.88x    
I/mobile-ffmpeg: frame=  110 fps= 36 q=2.0 size=    1280kB time=00:00:23.38 bitrate= 448.5kbits/s speed=7.75x    
I/mobile-ffmpeg: frame=  128 fps= 36 q=2.0 size=    1280kB time=00:00:27.12 bitrate= 386.6kbits/s speed=7.71x    
I/mobile-ffmpeg: frame=  148 fps= 38 q=8.4 Lsize=    1697kB time=00:00:29.40 bitrate= 472.9kbits/s speed=7.56x    
    video:1225kB audio:462kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 
I/mobile-ffmpeg: 0.559634%
I/mobile-ffmpeg: [aac @ 0xbe48c800] Qavg: 163.999


  


  here is a sample of srt file I am trying to merge :

  


  1
00:00:00,000 --> 00:00:03,326
 Text 1

2
00:00:03,326 --> 00:00:09,962
 Text 2

3
00:00:09,962 --> 00:00:16,160
 Text 3

4
00:00:16,160 --> 00:00:22,223
 Text 4


  


  any idea why the generated video does not contain the subtitle ?

  


  Update

  


  Based on below comment , I changed my code to use the latest ffmpeg-kit version , here is the new code

  


  String cmd = "-i " + videoPath + " -vf subtitles=\"" + subtitlePAth + ":force_style='Alignment=10,Fontsize=18\" " + 
   outputVideoPath;

   FFmpegKit.executeAsync(cmd, new FFmpegSessionCompleteCallback() {

        @Override
        public void apply(FFmpegSession session) {

        }
    }, new LogCallback() {

        @Override
        public void apply(com.arthenica.ffmpegkit.Log log) {


        }
    }, new StatisticsCallback() {

        @Override
        public void apply(Statistics statistics) {              

        }
    });`


  


  and here is the updated log

  


    ffmpeg version v4.5-dev-3393-g30322ebe3c Copyright (c) 2000-2021 the FFmpeg developers
    built with Android (7155654, based on r399163b1) clang version 11.0.5 (https://android.googlesource.com/toolchain/llvm-project 87f1315dfbea7c137aa2e6d362dbb457e388158d)
    configuration: --cross-prefix=arm-linux-androideabi- --sysroot=/files/android-sdk/ndk/22.1.7171670/toolchains/llvm/prebuilt/linux-x86_64/sysroot --prefix=/storage/light/projects/ffmpeg-kit/prebuilt/android-arm-neon/ffmpeg --pkg-config=/usr/bin/pkg-config --enable-version3 --arch=armv7-a --cpu=armv7-a --target-os=android --enable-neon --enable-asm --enable-inline-asm --build-suffix=_neon --ar=arm-linux-androideabi-ar --cc=armv7a-linux-androideabi24-clang --cxx=armv7a-linux-androideabi24-clang++ --ranlib=arm-linux-androideabi-ranlib --strip=arm-linux-androideabi-strip --nm=arm-linux-androideabi-nm --extra-libs='-L/storage/light/projects/ffmpeg-kit/prebuilt/android-arm-neon/cpu-features/lib -lndk_compat' --disable-autodetect --enable-cross-compile --enable-pic --enable-jni --enable-optimizations --enable-swscale --disable-static --enable-shared --enable-pthreads --enable-v4l2-m2m --disable-outdev=fbdev --disable-indev=fbdev --enable-small --disable-xmm-clobber-test --disable-debug --enable-lto --disable-neon-clobber-test --disable-programs --disable-postproc --disable-doc --disable-htmlpages --disable-manpages --disable-podpages --disable-txtpages --disable-sndio --disable-schannel --disable-securetransport --disable-xlib --disable-cuda --disable-cuvid --disable-nvenc --disable-vaapi --disable-vdpau --disable-videotoolbox --disable-audiotoolbox --disable-appkit --disable-alsa --disable-cuda --disable-cuvid --disable-nvenc --disable-vaapi --disable-vdpau --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-gmp --enable-gnutls --enable-libmp3lame --enable-libass --enable-iconv --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libxml2 --enable-libopencore-amrnb --enable-libshine --enable-libspeex --enable-libdav1d --enable-libkvazaar --enable-libilbc --enable-libopus --enable-libsnappy --enable-libsoxr --enable-libtwolame --disable-sdl2 --enable-libvo-amrwbenc --enable-libzimg --disable-openssl --enable-zlib --enable-mediacodec
    libavutil      57. 13.100 / 57. 13.100
    libavcodec     59. 15.102 / 59. 15.102
    libavformat    59. 10.100 / 59. 10.100
    libavdevice    59.  1.100 / 59.  1.100
    libavfilter     8. 21.100 /  8. 21.100
    libswscale      6.  1.102 /  6.  1.102
    libswresample   4.  0.100 /  4.  0.100
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/storage/emulated/0/Download/7b85de4d-6af2-4eea-be9d-0d13c7f7819f/001001.mp4':
    Metadata:
      major_brand     : isom
      minor_version   : 512
      compatible_brands: isomiso2mp41
      encoder         : Lavf59.10.100
    Duration: 00:00:29.60, start: 0.000000, bitrate: 467 kb/s
    Stream #0:0[0x1](und): Video: mpeg4 (mp4v / 0x7634706D), yuv420p(tv, bt470bg/bt709/bt709), 640x480 [SAR 1:2 DAR 2:3], 336 kb/s, 5 fps, 5 tbr, 10240 tbn (default)
      Metadata:
        handler_name    : VideoHandler
        vendor_id       : [0][0][0][0]
    Stream #0:1[0x2](und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 129 kb/s (default)
      Metadata:
        handler_name    : SoundHandler
        vendor_id       : [0][0][0][0]
  [mpeg4 @ 0xbacc1080] The "sub_text_format" option is deprecated: Deprecated, does nothing
  [aac @ 0xbacc1400] The "sub_text_format" option is deprecated: Deprecated, does nothing
  Stream mapping:
    Stream #0:0 -> #0:0 (mpeg4 (native) -> mpeg4 (native))
    Stream #0:1 -> #0:1 (aac (native) -> aac (native))
  Press [q] to stop, [?] for help
  [Parsed_subtitles_0 @ 0xf35141e0] libass API version: 0x1502000[Parsed_subtitles_0 @ 0xf35141e0] 
  [Parsed_subtitles_0 @ 0xf35141e0] libass source: commit: 0.15.2-0-gc967a5a3d9ec0d36af1148b3fdf2f307a21dd122[Parsed_subtitles_0 @ 0xf35141e0] 
  [Parsed_subtitles_0 @ 0xf35141e0] Shaper: FriBidi 1.0.11 (SIMPLE) HarfBuzz-ng 3.2.0 (COMPLEX)[Parsed_subtitles_0 @ 0xf35141e0] 
  [Parsed_subtitles_0 @ 0xf35141e0] No usable fontconfig configuration file found, using fallback.[Parsed_subtitles_0 @ 0xf35141e0] 
  [Parsed_subtitles_0 @ 0xf35141e0] Using font provider fontconfig[Parsed_subtitles_0 @ 0xf35141e0] 
  [Parsed_subtitles_0 @ 0xf35141e0] fontselect: failed to find any fallback with glyph 0x0 for font: (Arial, 400, 0)[Parsed_subtitles_0 @ 0xf35141e0] 
  Output #0, mp4, to '/storage/emulated/0/Download/7b85de4d-6af2-4eea-be9d-0d13c7f7819f/001001_sub5.mp4':
    Metadata:
      major_brand     : isom
      minor_version   : 512
      compatible_brands: isomiso2mp41
      encoder         : Lavf59.10.100
    Stream #0:0(und): Video: mpeg4 (mp4v / 0x7634706D), yuv420p(tv, bt470bg/bt709/bt709, progressive), 640x480 [SAR 1:2 DAR 2:3], q=2-31, 200 kb/s, 5 fps, 10240 tbn (default)
      Metadata:
        handler_name    : VideoHandler
        vendor_id       : [0][0][0][0]
        encoder         : Lavc59.15.102 mpeg4
      Side data:
        cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: N/A
    Stream #0:1(und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s (default)
      Metadata:
        handler_name    : SoundHandler
        vendor_id       : [0][0][0][0]
        encoder         : Lavc59.15.102 aac
  frame=    1 fps=0.0 q=5.7 size=       0kB time=00:00:01.55 bitrate=   0.2kbits/s speed= 2.4x    
  frame=   10 fps=8.7 q=2.0 size=       0kB time=00:00:03.50 bitrate=   0.1kbits/s speed=3.04x    
  frame=   20 fps= 12 q=2.0 size=       0kB time=00:00:05.36 bitrate=   0.1kbits/s speed=3.24x    
  frame=   32 fps= 15 q=2.0 size=     256kB time=00:00:07.87 bitrate= 266.5kbits/s speed=3.65x    
  frame=   45 fps= 17 q=2.0 size=     256kB time=00:00:10.49 bitrate= 199.8kbits/s speed=3.95x    
  frame=   58 fps= 18 q=2.0 size=     512kB time=00:00:12.97 bitrate= 323.2kbits/s speed=4.11x    
  frame=   69 fps= 19 q=2.0 size=     768kB time=00:00:15.23 bitrate= 413.1kbits/s speed=4.16x    
  frame=   81 fps= 19 q=2.0 size=     768kB time=00:00:17.60 bitrate= 357.5kbits/s speed=4.23x    
  frame=   92 fps= 20 q=2.0 size=    1024kB time=00:00:19.85 bitrate= 422.6kbits/s speed=4.26x    
  frame=  102 fps= 20 q=2.0 size=    1024kB time=00:00:21.89 bitrate= 383.1kbits/s speed=4.24x    
  frame=  115 fps= 20 q=2.0 size=    1280kB time=00:00:24.40 bitrate= 429.7kbits/s speed=4.31x    
  frame=  126 fps= 20 q=2.0 size=    1280kB time=00:00:26.67 bitrate= 393.0kbits/s speed=4.32x    
  frame=  139 fps= 21 q=2.0 size=    1536kB time=00:00:29.28 bitrate= 429.8kbits/s speed=4.39x    
  frame=  148 fps= 22 q=8.4 Lsize=    1701kB time=00:00:29.40 bitrate= 473.9kbits/s speed=4.34x    
  video:1225kB audio:466kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.561835%
  [aac @ 0xbacc2200] Qavg: 482.514


  


• How to use the FFmpeg blackdetect filter for the following image

  17 septembre 2021, par dinesh47

  I am using FFmpeg to find the blackdetect from a mp4 video file. but for some reasons file with very low light or poor background at night get detected as black frame For sample i have attached the frame which detected as black

  


  My ffmpeg filter setting is "blackdetect=d=121:pix_th=0.00"

  


  my file has a resolution of 1280*720 and frame rate of 30 which uses decoder format of 4:2:0 YUV


  


  There are 2 Questions

  


  1.Why the ffmpeg lib detects this as black frame ?

  


  2.How to over come this ?