Sur d’autres sites (10891)

• ffmpeg blend to exclude the top videos background

  2 février 2016, par user2995705

  I want to blend two videos, the top video named "top.mp4" was combined with some PNG files,but the combined video’s background was black ? why ?

  then i try to overlay the top.mp4 on another video (named bottom.mp4,was capture by android camera with QUALITY_480P)

  but when I use Overlay filter i find the top.mp4 was not transparent and have a black background on the result.mp4.

  I try to use blend filter to combine top.mp4 and bottom.mp4 to exclude the top.mp4’s black background , but i don’t know how to use the blend filter.

  here is my question :
  1.is it possible to combine PNG files to a video and the video has transparent background ? and then just use overlay filter,the result.mp4 will not have a black mask under the top.mp4 ?

  2.if 1 is impossible, how to blend top.mp4 and bottom.mp4 to exclude the black background of top.mp4

  my all output log

  02-02 19:34:04.300 7979-18573/com.demo D/LLLLLLLLLL: /data/data/com.demo/app_bin/ffmpeg -i /storage/sdcard0/baishiMagic/magic/waterfall/waterfall/waterfall_%04d.png -r 25 -vcodec copy -preset ultrafast -y /storage/sdcard0/baishiMagic/temp/anim1.mov 
  
  02-02 19:34:04.345 7979-18576/com.demo D/LLLLLLLLLL: ffmpeg version n2.4.2 Copyright (c) 2000-2014 the FFmpeg developers
  
  02-02 19:34:04.345 7979-18576/com.demo D/LLLLLLLLLL:   built on Oct  7 2014 15:05:17 with gcc 4.8 (GCC)
  
  02-02 19:34:04.345 7979-18576/com.demo D/LLLLLLLLLL:   configuration: --target-os=linux --cross-prefix=/home/sb/Source-Code/ffmpeg-android/toolchain-android/bin/arm-linux-androideabi- --arch=arm --cpu=cortex-a8 --enable-runtime-cpudetect --sysroot=/home/sb/Source-Code/ffmpeg-android/toolchain-android/sysroot --enable-pic --enable-libx264 --enable-libass --enable-libfreetype --enable-libfribidi --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/sb/Source-Code/ffmpeg-android/ffmpeg-pkg-config --prefix=/home/sb/Source-Code/ffmpeg-android/build/armeabi-v7a --extra-cflags='-I/home/sb/Source-Code/ffmpeg-android/toolchain-android/include -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all' --extra-ldflags='-L/home/sb/Source-Code/ffmpeg-android/toolchain-android/lib -Wl,-z,relro -Wl,-z,now -pie' --extra-libs='-lpng -lexpat -lm' --extra-cxxflags=
  
  02-02 19:34:04.345 7979-18576/com.demo D/LLLLLLLLLL:   libavutil      54.  7.100 / 54.  7.100
  
  02-02 19:34:04.345 7979-18576/com.demo D/LLLLLLLLLL:   libavcodec     56.  1.100 / 56.  1.100
  
  02-02 19:34:04.345 7979-18576/com.demo D/LLLLLLLLLL:   libavformat    56.  4.101 / 56.  4.101
  
  02-02 19:34:04.345 7979-18576/com.demo D/LLLLLLLLLL:   libavdevice    56.  0.100 / 56.  0.100
  
  02-02 19:34:04.345 7979-18576/com.demo D/LLLLLLLLLL:   libavfilter     5.  1.100 /  5.  1.100
  
  02-02 19:34:04.345 7979-18576/com.demo D/LLLLLLLLLL:   libswscale      3.  0.100 /  3.  0.100
  
  02-02 19:34:04.345 7979-18576/com.demo D/LLLLLLLLLL:   libswresample   1.  1.100 /  1.  1.100
  
  02-02 19:34:04.345 7979-18576/com.demo D/LLLLLLLLLL:   libpostproc    53.  0.100 / 53.  0.100
  
  02-02 19:34:04.460 7979-18576/com.demo D/LLLLLLLLLL: Input #0, image2, from '/storage/sdcard0/baishiMagic/magic/waterfall/waterfall/waterfall_%04d.png':
  
  02-02 19:34:04.460 7979-18576/com.demo D/LLLLLLLLLL:   Duration: 00:00:08.00, start: 0.000000, bitrate: N/A
  
  02-02 19:34:04.460 7979-18576/com.demo D/LLLLLLLLLL:     Stream #0:0: Video: png, rgba, 480x640 [SAR 3779:3779 DAR 3:4], 25 fps, 25 tbr, 25 tbn, 25 tbc
  
  02-02 19:34:04.470 7979-18576/com.demo D/LLLLLLLLLL: Output #0, mov, to '/storage/sdcard0/baishiMagic/temp/anim1.mov':
  
  02-02 19:34:04.470 7979-18576/com.demo D/LLLLLLLLLL:   Metadata:
  
  02-02 19:34:04.470 7979-18576/com.demo D/LLLLLLLLLL:     encoder         : Lavf56.4.101
  
  02-02 19:34:04.470 7979-18576/com.demo D/LLLLLLLLLL:     Stream #0:0: Video: png (png  / 0x20676E70), rgba, 480x640 [SAR 3779:3779 DAR 3:4], q=2-31, 25 fps, 12800 tbn, 25 tbc
  
  02-02 19:34:04.470 7979-18576/com.demo D/LLLLLLLLLL: Stream mapping:
  
  02-02 19:34:04.470 7979-18576/com.demo D/LLLLLLLLLL:   Stream #0:0 -> #0:0 (copy)
  
  02-02 19:34:04.470 7979-18576/com.demo D/LLLLLLLLLL: Press [q] to stop, [?] for help
  
  02-02 19:34:05.565 7979-18576/com.demo D/LLLLLLLLLL: frame=   46 fps=0.0 q=-1.0 size=   12339kB time=00:00:01.84 bitrate=54936.1kbits/s    
  
  02-02 19:34:06.070 7979-18576/com.demo D/LLLLLLLLLL: frame=   59 fps= 56 q=-1.0 size=   22617kB time=00:00:02.36 bitrate=78509.1kbits/s    
  
  02-02 19:34:06.580 7979-18576/com.demo D/LLLLLLLLLL: frame=   71 fps= 45 q=-1.0 size=   32451kB time=00:00:02.84 bitrate=93605.9kbits/s    
  
  02-02 19:34:07.095 7979-18576/com.demo D/LLLLLLLLLL: frame=   88 fps= 42 q=-1.0 size=   42163kB time=00:00:03.52 bitrate=98124.1kbits/s    
  
  02-02 19:34:07.610 7979-18576/com.demo D/LLLLLLLLLL: frame=  109 fps= 42 q=-1.0 size=   52919kB time=00:00:04.36 bitrate=99428.7kbits/s    
  
  02-02 19:34:08.095 7979-18576/com.demo D/LLLLLLLLLL: frame=  128 fps= 41 q=-1.0 size=   64222kB time=00:00:05.12 bitrate=102755.2kbits/s    
  
  02-02 19:34:08.270 7979-18576/com.demo D/LLLLLLLLLL: frame=  160 fps= 44 q=-1.0 size=   74397kB time=00:00:06.40 bitrate=95227.6kbits/s    
  
  02-02 19:34:08.270 7979-18576/com.demo D/LLLLLLLLLL: frame=  200 fps= 53 q=-1.0 Lsize=   77598kB time=00:00:08.00 bitrate=79460.4kbits/s    
  
  02-02 19:34:08.270 7979-18576/com.demo D/LLLLLLLLLL: video:77596kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.002606%
  
  02-02 19:34:08.270 7979-18573/com.demo D/LLLLLLLLLL: 图片合成,exitValue=0
  
  02-02 19:34:08.295 7979-18573/com.demo D/LLLLLLLLLL: /data/data/com.demo/app_bin/ffmpeg -i /storage/sdcard0/baishiMagic/magic/waterfall/fish_isolate/fish_%04d.png -r 25 -vcodec copy -preset ultrafast -y /storage/sdcard0/baishiMagic/temp/anim2.mov 
  
  02-02 19:34:08.325 7979-18674/com.demo D/LLLLLLLLLL: ffmpeg version n2.4.2 Copyright (c) 2000-2014 the FFmpeg developers
  
  02-02 19:34:08.325 7979-18674/com.demo D/LLLLLLLLLL:   built on Oct  7 2014 15:05:17 with gcc 4.8 (GCC)
  
  02-02 19:34:08.325 7979-18674/com.demo D/LLLLLLLLLL:   configuration: --target-os=linux --cross-prefix=/home/sb/Source-Code/ffmpeg-android/toolchain-android/bin/arm-linux-androideabi- --arch=arm --cpu=cortex-a8 --enable-runtime-cpudetect --sysroot=/home/sb/Source-Code/ffmpeg-android/toolchain-android/sysroot --enable-pic --enable-libx264 --enable-libass --enable-libfreetype --enable-libfribidi --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/sb/Source-Code/ffmpeg-android/ffmpeg-pkg-config --prefix=/home/sb/Source-Code/ffmpeg-android/build/armeabi-v7a --extra-cflags='-I/home/sb/Source-Code/ffmpeg-android/toolchain-android/include -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all' --extra-ldflags='-L/home/sb/Source-Code/ffmpeg-android/toolchain-android/lib -Wl,-z,relro -Wl,-z,now -pie' --extra-libs='-lpng -lexpat -lm' --extra-cxxflags=
  
  02-02 19:34:08.325 7979-18674/com.demo D/LLLLLLLLLL:   libavutil      54.  7.100 / 54.  7.100
  
  02-02 19:34:08.325 7979-18674/com.demo D/LLLLLLLLLL:   libavcodec     56.  1.100 / 56.  1.100
  
  02-02 19:34:08.325 7979-18674/com.demo D/LLLLLLLLLL:   libavformat    56.  4.101 / 56.  4.101
  
  02-02 19:34:08.325 7979-18674/com.demo D/LLLLLLLLLL:   libavdevice    56.  0.100 / 56.  0.100
  
  02-02 19:34:08.325 7979-18674/com.demo D/LLLLLLLLLL:   libavfilter     5.  1.100 /  5.  1.100
  
  02-02 19:34:08.325 7979-18674/com.demo D/LLLLLLLLLL:   libswscale      3.  0.100 /  3.  0.100
  
  02-02 19:34:08.325 7979-18674/com.demo D/LLLLLLLLLL:   libswresample   1.  1.100 /  1.  1.100
  
  02-02 19:34:08.325 7979-18674/com.demo D/LLLLLLLLLL:   libpostproc    53.  0.100 / 53.  0.100
  
  02-02 19:34:08.410 7979-18674/com.demo D/LLLLLLLLLL: Input #0, image2, from '/storage/sdcard0/baishiMagic/magic/waterfall/fish_isolate/fish_%04d.png':
  
  02-02 19:34:08.410 7979-18674/com.demo D/LLLLLLLLLL:   Duration: 00:00:08.00, start: 0.000000, bitrate: N/A
  
  02-02 19:34:08.410 7979-18674/com.demo D/LLLLLLLLLL:     Stream #0:0: Video: png, rgba, 480x640 [SAR 3779:3779 DAR 3:4], 25 fps, 25 tbr, 25 tbn, 25 tbc
  
  02-02 19:34:08.410 7979-18674/com.demo D/LLLLLLLLLL: Output #0, mov, to '/storage/sdcard0/baishiMagic/temp/anim2.mov':
  
  02-02 19:34:08.410 7979-18674/com.demo D/LLLLLLLLLL:   Metadata:
  
  02-02 19:34:08.410 7979-18674/com.demo D/LLLLLLLLLL:     encoder         : Lavf56.4.101
  
  02-02 19:34:08.410 7979-18674/com.demo D/LLLLLLLLLL:     Stream #0:0: Video: png (png  / 0x20676E70), rgba, 480x640 [SAR 3779:3779 DAR 3:4], q=2-31, 25 fps, 12800 tbn, 25 tbc
  
  02-02 19:34:08.410 7979-18674/com.demo D/LLLLLLLLLL: Stream mapping:
  
  02-02 19:34:08.410 7979-18674/com.demo D/LLLLLLLLLL:   Stream #0:0 -> #0:0 (copy)
  
  02-02 19:34:08.410 7979-18674/com.demo D/LLLLLLLLLL: Press [q] to stop, [?] for help
  
  02-02 19:34:08.750 7979-18674/com.demo D/LLLLLLLLLL: frame=  200 fps=0.0 q=-1.0 Lsize=    6606kB time=00:00:08.00 bitrate=6764.2kbits/s    
  
  02-02 19:34:08.750 7979-18674/com.demo D/LLLLLLLLLL: video:6604kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.023112%
  
  02-02 19:34:08.750 7979-18573/com.demo D/LLLLLLLLLL: 图片合成,exitValue=0
  
  02-02 19:34:08.780 7979-18573/com.demo D/LLLLLLLLLL: /data/data/com.demo/app_bin/ffmpeg -y -i /storage/sdcard0/baishiMagic/temp/video1454412829452.mp4 -r 25 -i /storage/sdcard0/baishiMagic/temp/anim1.mov -i /storage/sdcard0/baishiMagic/temp/anim2.mov -i /storage/sdcard0/frame.ts -filter_complex transpose=1,crop=480:640:0:40,overlay=0:0:0,overlay=-2:-2:0,overlay=0:0:0 -preset ultrafast -strict -2 /storage/sdcard0/baishiMagic/result.mp4 
  
  02-02 19:34:08.810 7979-18716/com.demo D/LLLLLLLLLL: ffmpeg version n2.4.2 Copyright (c) 2000-2014 the FFmpeg developers
  
  02-02 19:34:08.810 7979-18716/com.demo D/LLLLLLLLLL:   built on Oct  7 2014 15:05:17 with gcc 4.8 (GCC)
  
  02-02 19:34:08.810 7979-18716/com.demo D/LLLLLLLLLL:   configuration: --target-os=linux --cross-prefix=/home/sb/Source-Code/ffmpeg-android/toolchain-android/bin/arm-linux-androideabi- --arch=arm --cpu=cortex-a8 --enable-runtime-cpudetect --sysroot=/home/sb/Source-Code/ffmpeg-android/toolchain-android/sysroot --enable-pic --enable-libx264 --enable-libass --enable-libfreetype --enable-libfribidi --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/sb/Source-Code/ffmpeg-android/ffmpeg-pkg-config --prefix=/home/sb/Source-Code/ffmpeg-android/build/armeabi-v7a --extra-cflags='-I/home/sb/Source-Code/ffmpeg-android/toolchain-android/include -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all' --extra-ldflags='-L/home/sb/Source-Code/ffmpeg-android/toolchain-android/lib -Wl,-z,relro -Wl,-z,now -pie' --extra-libs='-lpng -lexpat -lm' --extra-cxxflags=
  
  02-02 19:34:08.810 7979-18716/com.demo D/LLLLLLLLLL:   libavutil      54.  7.100 / 54.  7.100
  
  02-02 19:34:08.810 7979-18716/com.demo D/LLLLLLLLLL:   libavcodec     56.  1.100 / 56.  1.100
  
  02-02 19:34:08.810 7979-18716/com.demo D/LLLLLLLLLL:   libavformat    56.  4.101 / 56.  4.101
  
  02-02 19:34:08.810 7979-18716/com.demo D/LLLLLLLLLL:   libavdevice    56.  0.100 / 56.  0.100
  
  02-02 19:34:08.810 7979-18716/com.demo D/LLLLLLLLLL:   libavfilter     5.  1.100 /  5.  1.100
  
  02-02 19:34:08.810 7979-18716/com.demo D/LLLLLLLLLL:   libswscale      3.  0.100 /  3.  0.100
  
  02-02 19:34:08.810 7979-18716/com.demo D/LLLLLLLLLL:   libswresample   1.  1.100 /  1.  1.100
  
  02-02 19:34:08.810 7979-18716/com.demo D/LLLLLLLLLL:   libpostproc    53.  0.100 / 53.  0.100
  
  02-02 19:34:08.870 7979-18716/com.demo D/LLLLLLLLLL: Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/storage/sdcard0/baishiMagic/temp/video1454412829452.mp4':
  
  02-02 19:34:08.870 7979-18716/com.demo D/LLLLLLLLLL:   Metadata:
  
  02-02 19:34:08.870 7979-18716/com.demo D/LLLLLLLLLL:     major_brand     : isom
  
  02-02 19:34:08.870 7979-18716/com.demo D/LLLLLLLLLL:     minor_version   : 0
  
  02-02 19:34:08.870 7979-18716/com.demo D/LLLLLLLLLL:     compatible_brands: isom3gp4
  
  02-02 19:34:08.870 7979-18716/com.demo D/LLLLLLLLLL:     creation_time   : 2016-02-02 11:33:58
  
  02-02 19:34:08.870 7979-18716/com.demo D/LLLLLLLLLL:   Duration: 00:00:07.64, start: 0.000000, bitrate: 3099 kb/s
  
  02-02 19:34:08.870 7979-18716/com.demo D/LLLLLLLLLL:     Stream #0:0(eng): Video: h264 (Baseline) (avc1 / 0x31637661), yuv420p, 640x480, 3074 kb/s, SAR 1:1 DAR 4:3, 29.82 fps, 30 tbr, 90k tbn, 180k tbc (default)
  
  02-02 19:34:08.870 7979-18716/com.demo D/LLLLLLLLLL:     Metadata:
  
  02-02 19:34:08.870 7979-18716/com.demo D/LLLLLLLLLL:       rotate          : 180
  
  02-02 19:34:08.870 7979-18716/com.demo D/LLLLLLLLLL:       creation_time   : 2016-02-02 11:33:58
  
  02-02 19:34:08.870 7979-18716/com.demo D/LLLLLLLLLL:       handler_name    : VideoHandle
  
  02-02 19:34:08.870 7979-18716/com.demo D/LLLLLLLLLL:       encoder         :                                
  
  02-02 19:34:08.870 7979-18716/com.demo D/LLLLLLLLLL:     Side data:
  
  02-02 19:34:08.870 7979-18716/com.demo D/LLLLLLLLLL:       displaymatrix: rotation of 180.00 degrees
  
  02-02 19:34:08.870 7979-18716/com.demo D/LLLLLLLLLL:     Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 48000 Hz, mono, fltp, 124 kb/s (default)
  
  02-02 19:34:08.870 7979-18716/com.demo D/LLLLLLLLLL:     Metadata:
  
  02-02 19:34:08.870 7979-18716/com.demo D/LLLLLLLLLL:       creation_time   : 2016-02-02 11:33:58
  
  02-02 19:34:08.870 7979-18716/com.demo D/LLLLLLLLLL:       handler_name    : SoundHandle
  
  02-02 19:34:08.920 7979-18716/com.demo D/LLLLLLLLLL: Input #1, mov,mp4,m4a,3gp,3g2,mj2, from '/storage/sdcard0/baishiMagic/temp/anim1.mov':
  
  02-02 19:34:08.920 7979-18716/com.demo D/LLLLLLLLLL:   Metadata:
  
  02-02 19:34:08.920 7979-18716/com.demo D/LLLLLLLLLL:     major_brand     : qt  
  
  02-02 19:34:08.920 7979-18716/com.demo D/LLLLLLLLLL:     minor_version   : 512
  
  02-02 19:34:08.920 7979-18716/com.demo D/LLLLLLLLLL:     compatible_brands: qt  
  
  02-02 19:34:08.920 7979-18716/com.demo D/LLLLLLLLLL:     encoder         : Lavf56.4.101
  
  02-02 19:34:08.920 7979-18716/com.demo D/LLLLLLLLLL:   Duration: 00:00:08.00, start: 0.000000, bitrate: 79460 kb/s
  
  02-02 19:34:08.920 7979-18716/com.demo D/LLLLLLLLLL:     Stream #1:0(eng): Video: png (png  / 0x20676E70), rgba, 480x640 [SAR 3779:3779 DAR 3:4], 79458 kb/s, 25 fps, 25 tbr, 12800 tbn, 12800 tbc (default)
  
  02-02 19:34:08.920 7979-18716/com.demo D/LLLLLLLLLL:     Metadata:
  
  02-02 19:34:08.920 7979-18716/com.demo D/LLLLLLLLLL:       handler_name    : DataHandler
  
  02-02 19:34:08.950 7979-18716/com.demo D/LLLLLLLLLL: Input #2, mov,mp4,m4a,3gp,3g2,mj2, from '/storage/sdcard0/baishiMagic/temp/anim2.mov':
  
  02-02 19:34:08.950 7979-18716/com.demo D/LLLLLLLLLL:   Metadata:
  
  02-02 19:34:08.950 7979-18716/com.demo D/LLLLLLLLLL:     major_brand     : qt  
  
  02-02 19:34:08.950 7979-18716/com.demo D/LLLLLLLLLL:     minor_version   : 512
  
  02-02 19:34:08.950 7979-18716/com.demo D/LLLLLLLLLL:     compatible_brands: qt  
  
  02-02 19:34:08.950 7979-18716/com.demo D/LLLLLLLLLL:     encoder         : Lavf56.4.101
  
  02-02 19:34:08.950 7979-18716/com.demo D/LLLLLLLLLL:   Duration: 00:00:08.00, start: 0.000000, bitrate: 6764 kb/s
  
  02-02 19:34:08.955 7979-18716/com.demo D/LLLLLLLLLL:     Stream #2:0(eng): Video: png (png  / 0x20676E70), rgba, 480x640 [SAR 3779:3779 DAR 3:4], 6762 kb/s, 25 fps, 25 tbr, 12800 tbn, 12800 tbc (default)
  
  02-02 19:34:08.955 7979-18716/com.demo D/LLLLLLLLLL:     Metadata:
  
  02-02 19:34:08.955 7979-18716/com.demo D/LLLLLLLLLL:       handler_name    : DataHandler
  
  02-02 19:34:08.985 7979-18716/com.demo D/LLLLLLLLLL: Input #3, mpegts, from '/storage/sdcard0/frame.ts':
  
  02-02 19:34:08.985 7979-18716/com.demo D/LLLLLLLLLL:   Duration: 00:00:05.13, start: 1.533333, bitrate: 1006 kb/s
  
  02-02 19:34:08.985 7979-18716/com.demo D/LLLLLLLLLL:   Program 1 
  
  02-02 19:34:08.985 7979-18716/com.demo D/LLLLLLLLLL:     Metadata:
  
  02-02 19:34:08.985 7979-18716/com.demo D/LLLLLLLLLL:       service_name    : Service01
  
  02-02 19:34:08.985 7979-18716/com.demo D/LLLLLLLLLL:       service_provider: FFmpeg
  
  02-02 19:34:08.985 7979-18716/com.demo D/LLLLLLLLLL:     Stream #3:0[0x100]: Video: h264 (High) ([27][0][0][0] / 0x001B), yuv420p, 480x480 [SAR 1:1 DAR 1:1], 15 fps, 15 tbr, 90k tbn, 30 tbc
  
  02-02 19:34:09.000 7979-18716/com.demo D/LLLLLLLLLL: [libx264 @ 0x2b447ef0] using SAR=1/1
  
  02-02 19:34:09.020 7979-18716/com.demo D/LLLLLLLLLL: [libx264 @ 0x2b447ef0] using cpu capabilities: none!
  
  02-02 19:34:09.115 7979-18716/com.demo D/LLLLLLLLLL: [libx264 @ 0x2b447ef0] profile Constrained Baseline, level 3.0
  
  02-02 19:34:09.115 7979-18716/com.demo D/LLLLLLLLLL: [libx264 @ 0x2b447ef0] 264 - core 142 - H.264/MPEG-4 AVC codec - Copyleft 2003-2014 - http://www.videolan.org/x264.html - options: cabac=0 ref=1 deblock=0:0:0 analyse=0:0 me=dia subme=0 psy=1 psy_rd=1.00:0.00 mixed_ref=0 me_range=16 chroma_me=1 trellis=0 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=0 threads=6 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=0 keyint=250 keyint_min=25 scenecut=0 intra_refresh=0 rc=crf mbtree=0 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=0
  
  02-02 19:34:09.170 7979-18716/com.demo D/LLLLLLLLLL: Output #0, mp4, to '/storage/sdcard0/baishiMagic/result.mp4':
  
  02-02 19:34:09.170 7979-18716/com.demo D/LLLLLLLLLL:   Metadata:
  
  02-02 19:34:09.170 7979-18716/com.demo D/LLLLLLLLLL:     major_brand     : isom
  
  02-02 19:34:09.175 7979-18716/com.demo D/LLLLLLLLLL:     minor_version   : 0
  
  02-02 19:34:09.175 7979-18716/com.demo D/LLLLLLLLLL:     compatible_brands: isom3gp4
  
  02-02 19:34:09.175 7979-18716/com.demo D/LLLLLLLLLL:     encoder         : Lavf56.4.101
  
  02-02 19:34:09.175 7979-18716/com.demo D/LLLLLLLLLL:     Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 480x640 [SAR 1:1 DAR 3:4], q=-1--1, 30 fps, 15360 tbn, 30 tbc (default)
  
  02-02 19:34:09.175 7979-18716/com.demo D/LLLLLLLLLL:     Metadata:
  
  02-02 19:34:09.175 7979-18716/com.demo D/LLLLLLLLLL:       encoder         : Lavc56.1.100 libx264
  
  02-02 19:34:09.175 7979-18716/com.demo D/LLLLLLLLLL:     Stream #0:1(eng): Audio: aac ([64][0][0][0] / 0x0040), 48000 Hz, mono, fltp, 128 kb/s (default)
  
  02-02 19:34:09.180 7979-18716/com.demo D/LLLLLLLLLL:     Metadata:
  
  02-02 19:34:09.180 7979-18716/com.demo D/LLLLLLLLLL:       creation_time   : 2016-02-02 11:33:58
  
  02-02 19:34:09.180 7979-18716/com.demo D/LLLLLLLLLL:       handler_name    : SoundHandle
  
  02-02 19:34:09.180 7979-18716/com.demo D/LLLLLLLLLL:       encoder         : Lavc56.1.100 aac
  
  02-02 19:34:09.180 7979-18716/com.demo D/LLLLLLLLLL: Stream mapping:
  
  02-02 19:34:09.180 7979-18716/com.demo D/LLLLLLLLLL:   Stream #0:0 (h264) -> transpose (graph 0)
  
  02-02 19:34:09.180 7979-18716/com.demo D/LLLLLLLLLL:   Stream #1:0 (png) -> overlay:overlay (graph 0)
  
  02-02 19:34:09.180 7979-18716/com.demo D/LLLLLLLLLL:   Stream #2:0 (png) -> overlay:overlay (graph 0)
  
  02-02 19:34:09.180 7979-18716/com.demo D/LLLLLLLLLL:   Stream #3:0 (h264) -> overlay:overlay (graph 0)
  
  02-02 19:34:09.180 7979-18716/com.demo D/LLLLLLLLLL:   overlay (graph 0) -> Stream #0:0 (libx264)
  
  02-02 19:34:09.180 7979-18716/com.demo D/LLLLLLLLLL:   Stream #0:1 -> #0:1 (aac (native) -> aac (native))
  
  02-02 19:34:09.180 7979-18716/com.demo D/LLLLLLLLLL: Press [q] to stop, [?] for help
  
  02-02 19:34:10.250 7979-18716/com.demo D/LLLLLLLLLL: frame=    1 fps=0.0 q=0.0 size=       0kB time=00:00:01.00 bitrate=   0.4kbits/s    
  
  02-02 19:34:10.745 7979-18716/com.demo D/LLLLLLLLLL: frame=    6 fps=5.9 q=0.0 size=       0kB time=00:00:01.00 bitrate=   0.4kbits/s    
  
  02-02 19:34:11.295 7979-18716/com.demo D/LLLLLLLLLL: frame=   11 fps=7.1 q=19.0 size=      11kB time=00:00:01.00 bitrate=  92.1kbits/s    
  
  02-02 19:34:11.760 7979-18716/com.demo D/LLLLLLLLLL: frame=   16 fps=7.7 q=19.0 size=      24kB time=00:00:01.00 bitrate= 199.3kbits/s    
  
  02-02 19:34:12.335 7979-18716/com.demo D/LLLLLLLLLL: frame=   22 fps=8.5 q=20.0 size=      39kB time=00:00:01.00 bitrate= 319.8kbits/s    
  
  02-02 19:34:12.870 7979-18716/com.demo D/LLLLLLLLLL: frame=   28 fps=9.0 q=19.0 size=      58kB time=00:00:01.00 bitrate= 475.7kbits/s    
  
  02-02 19:34:13.345 7979-18716/com.demo D/LLLLLLLLLL: frame=   30 fps=8.3 q=20.0 size=      63kB time=00:00:02.00 bitrate= 258.6kbits/s    
  
  02-02 19:34:13.935 7979-18716/com.demo D/LLLLLLLLLL: frame=   34 fps=8.2 q=20.0 size=      74kB time=00:00:02.00 bitrate= 300.8kbits/s    
  
  02-02 19:34:14.480 7979-18716/com.demo D/LLLLLLLLLL: frame=   39 fps=8.2 q=20.0 size=      87kB time=00:00:02.00 bitrate= 354.0kbits/s    
  
  02-02 19:34:15.015 7979-18716/com.demo D/LLLLLLLLLL: frame=   43 fps=8.2 q=20.0 size=      98kB time=00:00:02.00 bitrate= 400.4kbits/s    
  
  02-02 19:34:15.515 7979-18716/com.demo D/LLLLLLLLLL: frame=   48 fps=8.3 q=21.0 size=     112kB time=00:00:02.00 bitrate= 459.5kbits/s    
  
  02-02 19:34:16.015 7979-18716/com.demo D/LLLLLLLLLL: frame=   54 fps=8.5 q=24.0 size=     137kB time=00:00:02.00 bitrate= 557.9kbits/s    
  
  02-02 19:34:16.575 7979-18716/com.demo D/LLLLLLLLLL: frame=   58 fps=8.5 q=24.0 size=     169kB time=00:00:02.19 bitrate= 628.2kbits/s    
  
  02-02 19:34:17.090 7979-18716/com.demo D/LLLLLLLLLL: frame=   60 fps=8.2 q=24.0 size=     189kB time=00:00:03.00 bitrate= 515.4kbits/s    
  
  02-02 19:34:17.605 7979-18716/com.demo D/LLLLLLLLLL: frame=   65 fps=8.3 q=23.0 size=     228kB time=00:00:03.00 bitrate= 621.7kbits/s    
  
  02-02 19:34:18.090 7979-18716/com.demo D/LLLLLLLLLL: frame=   70 fps=8.4 q=24.0 size=     269kB time=00:00:03.00 bitrate= 731.7kbits/s    
  
  02-02 19:34:18.655 7979-18716/com.demo D/LLLLLLLLLL: frame=   76 fps=8.5 q=25.0 size=     320kB time=00:00:03.00 bitrate= 870.6kbits/s    
  
  02-02 19:34:19.115 7979-18716/com.demo D/LLLLLLLLLL: frame=   82 fps=8.7 q=25.0 size=     374kB time=00:00:03.00 bitrate=1019.4kbits/s    
  
  02-02 19:34:19.620 7979-18716/com.demo D/LLLLLLLLLL: frame=   87 fps=8.8 q=24.0 size=     419kB time=00:00:03.00 bitrate=1142.2kbits/s    
  
  02-02 19:34:20.120 7979-18716/com.demo D/LLLLLLLLLL: frame=   89 fps=8.5 q=22.0 size=     434kB time=00:00:04.01 bitrate= 885.6kbits/s    
  
  02-02 19:34:20.685 7979-18716/com.demo D/LLLLLLLLLL: frame=   94 fps=8.6 q=22.0 size=     464kB time=00:00:04.01 bitrate= 947.8kbits/s    
  
  02-02 19:34:21.155 7979-18716/com.demo D/LLLLLLLLLL: frame=  100 fps=8.7 q=22.0 size=     495kB time=00:00:04.01 bitrate=1010.7kbits/s    
  
  02-02 19:34:21.685 7979-18716/com.demo D/LLLLLLLLLL: frame=  105 fps=8.8 q=22.0 size=     523kB time=00:00:04.01 bitrate=1067.3kbits/s    
  
  02-02 19:34:22.180 7979-18716/com.demo D/LLLLLLLLLL: frame=  110 fps=8.8 q=22.0 size=     551kB time=00:00:04.01 bitrate=1125.1kbits/s    
  
  02-02 19:34:22.685 7979-18716/com.demo D/LLLLLLLLLL: frame=  115 fps=8.9 q=22.0 size=     576kB time=00:00:04.01 bitrate=1176.9kbits/s    
  
  02-02 19:34:23.200 7979-18716/com.demo D/LLLLLLLLLL: frame=  118 fps=8.7 q=21.0 size=     592kB time=00:00:04.92 bitrate= 984.3kbits/s    
  
  02-02 19:34:23.715 7979-18716/com.demo D/LLLLLLLLLL: frame=  123 fps=8.8 q=22.0 size=     619kB time=00:00:05.01 bitrate=1011.1kbits/s    
  
  02-02 19:34:24.265 7979-18716/com.demo D/LLLLLLLLLL: frame=  127 fps=8.7 q=22.0 size=     638kB time=00:00:05.01 bitrate=1042.8kbits/s    
  
  02-02 19:34:24.765 7979-18716/com.demo D/LLLLLLLLLL: frame=  131 fps=8.7 q=23.0 size=     658kB time=00:00:05.01 bitrate=1074.5kbits/s    
  
  02-02 19:34:25.310 7979-18716/com.demo D/LLLLLLLLLL: frame=  137 fps=8.8 q=23.0 size=     700kB time=00:00:05.01 bitrate=1143.7kbits/s    
  
  02-02 19:34:25.800 7979-18716/com.demo D/LLLLLLLLLL: frame=  142 fps=8.8 q=23.0 size=     736kB time=00:00:05.01 bitrate=1202.2kbits/s    
  
  02-02 19:34:26.345 7979-18716/com.demo D/LLLLLLLLLL: frame=  147 fps=8.8 q=24.0 size=     771kB time=00:00:05.14 bitrate=1229.1kbits/s    
  
  02-02 19:34:26.895 7979-18716/com.demo D/LLLLLLLLLL: frame=  150 fps=8.7 q=24.0 size=     798kB time=00:00:06.01 bitrate=1086.7kbits/s    
  
  02-02 19:34:27.385 7979-18716/com.demo D/LLLLLLLLLL: frame=  156 fps=8.8 q=24.0 size=     847kB time=00:00:06.01 bitrate=1153.9kbits/s    
  
  02-02 19:34:27.895 7979-18716/com.demo D/LLLLLLLLLL: frame=  161 fps=8.9 q=23.0 size=     886kB time=00:00:06.01 bitrate=1206.2kbits/s    
  
  02-02 19:34:28.455 7979-18716/com.demo D/LLLLLLLLLL: frame=  167 fps=8.9 q=23.0 size=     927kB time=00:00:06.01 bitrate=1261.6kbits/s    
  
  02-02 19:34:28.905 7979-18716/com.demo D/LLLLLLLLLL: frame=  173 fps=9.0 q=23.0 size=     964kB time=00:00:06.01 bitrate=1312.4kbits/s    
  
  02-02 19:34:29.440 7979-18716/com.demo D/LLLLLLLLLL: frame=  177 fps=9.0 q=23.0 size=     987kB time=00:00:06.20 bitrate=1302.9kbits/s    
  
  02-02 19:34:29.995 7979-18716/com.demo D/LLLLLLLLLL: frame=  180 fps=8.9 q=23.0 size=    1008kB time=00:00:07.01 bitrate=1176.9kbits/s    
  
  02-02 19:34:30.490 7979-18716/com.demo D/LLLLLLLLLL: frame=  186 fps=9.0 q=21.0 size=    1048kB time=00:00:07.01 bitrate=1223.3kbits/s    
  
  02-02 19:34:31.015 7979-18716/com.demo D/LLLLLLLLLL: frame=  191 fps=9.0 q=19.0 size=    1076kB time=00:00:07.01 bitrate=1255.5kbits/s    
  
  02-02 19:34:31.495 7979-18716/com.demo D/LLLLLLLLLL: frame=  197 fps=9.0 q=18.0 size=    1103kB time=00:00:07.01 bitrate=1287.1kbits/s    
  
  02-02 19:34:32.040 7979-18716/com.demo D/LLLLLLLLLL: frame=  202 fps=9.1 q=19.0 size=    1119kB time=00:00:07.01 bitrate=1306.5kbits/s    
  
  02-02 19:34:32.555 7979-18716/com.demo D/LLLLLLLLLL: frame=  207 fps=9.1 q=20.0 size=    1138kB time=00:00:07.01 bitrate=1328.1kbits/s    
  
  02-02 19:34:33.140 7979-18716/com.demo D/LLLLLLLLLL: frame=  213 fps=9.1 q=19.0 size=    1161kB time=00:00:07.01 bitrate=1354.7kbits/s    
  
  02-02 19:34:33.695 7979-18716/com.demo D/LLLLLLLLLL: frame=  217 fps=9.1 q=19.0 size=    1176kB time=00:00:07.59 bitrate=1268.3kbits/s    
  
  02-02 19:34:34.205 7979-18716/com.demo D/LLLLLLLLLL: frame=  222 fps=9.1 q=19.0 size=    1195kB time=00:00:07.59 bitrate=1288.8kbits/s dup=0 drop=4    
  
  02-02 19:34:34.720 7979-18716/com.demo D/LLLLLLLLLL: frame=  222 fps=8.9 q=19.0 size=    1195kB time=00:00:07.59 bitrate=1288.8kbits/s dup=0 drop=13    
  
  02-02 19:34:35.075 7979-18716/com.demo D/LLLLLLLLLL: frame=  222 fps=8.7 q=19.0 size=    1195kB time=00:00:07.59 bitrate=1288.8kbits/s dup=0 drop=24    
  
  02-02 19:34:35.075 7979-18716/com.demo D/LLLLLLLLLL: frame=  222 fps=8.6 q=-1.0 Lsize=    1233kB time=00:00:07.63 bitrate=1322.5kbits/s dup=0 drop=30    
  
  02-02 19:34:35.075 7979-18716/com.demo D/LLLLLLLLLL: video:1104kB audio:122kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.615799%
  
  02-02 19:34:35.095 7979-18716/com.demo D/LLLLLLLLLL: [libx264 @ 0x2b447ef0] frame I:1     Avg QP:20.00  size:  5784
  
  02-02 19:34:35.095 7979-18716/com.demo D/LLLLLLLLLL: [libx264 @ 0x2b447ef0] frame P:221   Avg QP:21.62  size:  5084
  
  02-02 19:34:35.095 7979-18716/com.demo D/LLLLLLLLLL: [libx264 @ 0x2b447ef0] mb I  I16..4: 100.0%  0.0%  0.0%
  
  02-02 19:34:35.095 7979-18716/com.demo D/LLLLLLLLLL: [libx264 @ 0x2b447ef0] mb P  I16..4: 17.6%  0.0%  0.0%  P16..4: 21.8%  0.0%  0.0%  0.0%  0.0%    skip:60.5%
  
  02-02 19:34:35.100 7979-18716/com.demo D/LLLLLLLLLL: [libx264 @ 0x2b447ef0] coded y,uvDC,uvAC intra: 36.9% 18.1% 2.2% inter: 13.0% 7.3% 0.1%
  
  02-02 19:34:35.100 7979-18716/com.demo D/LLLLLLLLLL: [libx264 @ 0x2b447ef0] i16 v,h,dc,p: 27% 30% 24% 19%
  
  02-02 19:34:35.100 7979-18716/com.demo D/LLLLLLLLLL: [libx264 @ 0x2b447ef0] i8c dc,h,v,p: 57% 22% 17%  3%
  
  02-02 19:34:35.100 7979-18716/com.demo D/LLLLLLLLLL: [libx264 @ 0x2b447ef0] kb/s:1221.00
  
  02-02 19:34:35.110 7979-18573/com.demo D/LLLLLLLLLL: 视频处理,exitValue=0

• How to not process any personal data with Matomo and what it means for you

  22 avril 2018, par InnoCraft

  Disclaimer : this blog post has been written by digital analysts, not lawyers. The purpose of this article is to explain how to not process any personal data with Matomo in order to avoid going through the GDPR compliance process with Matomo analytics. This work comes from our interpretation of different sources : the official GDPR text and the UK privacy commission : ICO resources. It cannot be considered as a professional legal advice. So as GDPR, this information is subject to change. GDPR may be also known as RGPD in French, Spanish, Portuguese, Datenschutz-Grundverordnung, DS-GVO in German, Algemene verordening gegevensbescherming in Dutch, Regolamento generale sulla protezione dei dati in Italian.

  Are you looking for a way to not process any personal data with Matomo ? If the answer is yes, you are at the right place. From our understanding, if you are not processing personal data, then you shouldn’t be concerned about GDPR. Our inspiration came from this official reference :

  “The principles of data protection should therefore not apply to anonymous information, namely information which does not relate to an identified or identifiable natural person or to personal data rendered anonymous in such a manner that the data subject is not or no longer identifiable. This Regulation does not therefore concern the processing of such anonymous information, including for statistical or research purposes.“

  In this blog post we are going to see how you can configure Matomo in order to not process any personal data and what the consequences are.

  Which data is considered as personal according to GDPR ?

  From : eur-lex.europa.eu

  (1) “‘personal data’ means any information relating to an identified or identifiable natural person (‘data subject’) ; an identifiable natural person is one who can be identified, directly or indirectly, in particular by reference to an identifier such as a name, an identification number, location data, an online identifier or to one or more factors specific to the physical, physiological, genetic, mental, economic, cultural or social identity of that natural person ;”

  (30) “Natural persons may be associated with online identifiers provided by their devices, applications, tools and protocols, such as internet protocol addresses, cookie identifiers or other identifiers such as radio frequency identification tags. This may leave traces which, in particular when combined with unique identifiers and other information received by the servers, may be used to create profiles of the natural persons and identify them.”

  So according to your Matomo configuration, it may leave some traces within the following data :

  1. IP addresses
  2. Cookies identifiers
  3. Page URL or page titles
  4. User ID and Custom “personal” data
  5. Ecommerce order IDs
  6. Location
  7. Heatmaps & Session Recordings

  Let’s see each of them in more detail.

  1. IP addresses

  IP addresses can indirectly identify an individual. It can also give a good approximation of an individual’s location.

  IP addresses are therefore considered as personal data which means you need to anonymize them. To do so, a feature is available within Matomo, where you can anonymize the IP. We recommend you to anonymize at least the last two bytes :

  

  See our configuration guide for more information

  What are the consequences of using this feature ?

  When applying IP anonymization on two bytes, you will no longer be able to see the full IP in the UI.

  Moreover, there is a small chance that 2 different visitors with the same device and software configuration will be identified as the same visitor if the anonymised IP address is the same for both.

  2. Cookies

  It is not clear for us yet if all cookies are considered equal under GDPR. At this stage it is too early to make a definite decision.

  Did you know ? Matomo lets you optionally disable the creation of cookies by adding an extra line of code to your tracking code see below.

  

  See our configuration guide for more information

  What are the consequences of using this feature ?

  Matomo is using a few first party cookies, and the following cookies may hold personal data :

  • _pk_id : contains a visitor id used to identify unique visitors
  • _pk_ref : to identify from where they came from

  If Matomo cannot set cookies, it will use a technique called Fingerprint. It is based on several metadata such as the operating system, browser, browser plugins, IP address, browser language ; just to name a few to identify a unique visitor. As this feature is less accurate than the one using cookies, the number of visitors and visits will be affected.

  3. Page URLs and page titles

  URLs are not mentioned within the official GDPR text. However, we know that according to the different CMS you use, some of them may have URLs including personal identifiers.

  For example :

  

  As a result, you need to find a way to anonymize this data.

  There are several ways you can perform this action according to your website. If your website is adding the personal data through query parameters, you can define a rule to exclude them from Matomo.

  If the personal data are not included within query parameters, you can use the “setCustomURL” feature and write your code as follow :

  

  See our developer documentation for more information

  If you are also processing personal data within the title tag, you can use the following function : “setDocumentTitle”.

  What are the consequences of using this feature ?

  By anonymizing the URLs containing personal data, some of your  URLs will be grouped together.

  4. User ID and custom personal data

  User ID is a feature (a tracking code needs to be added) which allows you to identify the same user across different devices.

  A User ID needs a corresponding database in order to link a user across different devices, it can be an email, a username, a name, a random number… All those data are either direct or non direct online identifiers and are therefore under the scope of GDPR.

  It will be the same situation if you are using custom variables and/or custom dimensions in order to push personal data to the system.

  To continue using the User ID feature but not recording personal data, you can consider using a hash function which will anonymize/convert your actual User ID into something like “3jrj3j34434834urj33j3”.

  Alternatively, you can enable the feature “Anonymise User IDs”. This feature will be available starting in Matomo 3.5.0 :

  

  What are the consequences of using this feature ?

  Under GDPR, User ID is personal data. Anonymizing the User ID using a hash function or our built-in functionality make the User Id pseudo-anonymous, which means it can’t be easily identified to a specific user. As a result, you will still get accurate visits and unique visitors metrics, and the Visitor Profile, but without tracking the original User ID which is personal data.

  5. Ecommerce order IDs

  Order IDs are the reference number assigned to the products/services bought by your customers. As this information can be crossed with your internal database, it is considered as an online identifier and is therefore under the scope of GDPR. As for User ID, you can anonymize order IDs using our built-in functionality to Anonymise Order IDs (see section 4. about User Id).

  What are the consequences of anonymizing order ID ?

  It really depends on your former use of order IDs. If you were not using them in the past then you should not see any difference.

  6. Location

  Based on the IP address of a visitor, Matomo can detect the visitors location. Location data is problematic for privacy as this technology has become quite accurate and can detect not only the city a visitor is from, but sometimes an even more precise position of a visitor.

  

  In order to not leave any accurate traces, we strongly recommend you to enable the IP anonymization feature. Next, you need to enable the setting “Also use the anonymized IP address when enriching visits”. You find this setting directly below the IP anonymization. This is important as otherwise the full IP address will be used to geolocate a visitor.

  

  What are the consequences of anonymizing location data ?

  The more bytes you anonymize from the IP, the more anonymized your location will be. When you remove two bytes as suggested, the city and region location reports will not be as accurate. In some cases even the country may not be detected correctly anymore.

  7. Heatmaps & Session Recordings

  Heatmaps & Session Recording is a premium feature in Matomo allowing you to see where users click, hover, type and scroll. With session recordings you can then replay their actions in a video.

  Heatmaps & Session Recordings are under the scope of GDPR as they can disclose in some specific cases (for example : filling a contact form) personal data :

  

  To avoid this, Matomo will anonymize all keystrokes which a user enters into a form field unless you specifically whitelist a field. Many fields that could contain personal data, such as a credit card, phone number, email address, password, social security number, and more are always anonymized and not recorded.

  See our configuration guide for more information

  Note that a page may still show personal information within the page as part of regular content (not a form element). For example an address, or the profile page of a forum user. We have added a feature which allows you to set an HTML attribute “data-matomo-mask” to anonymize any personal content shown in the UI.

  What are the consequences of using this feature ?

  Mainly, you will not be able to see in plain text what people are entering into your forms.

  What should you do with past data ?

  Once more, we have to say that we are not lawyers. So do not take our answers as legal advice. From : ec.europa.eu/newsroom/article29/document.cfm ?doc_id=50053

  “For example, as the GDPR requires that a controller must be able to demonstrate that valid consent was obtained, all presumed consents of which no references are kept will automatically be below the consent standard of the GDPR and will need to be renewed.”

  Our interpretation is that, if you were previously relying on consent, unless you can demonstrate that valid consent was obtained, you need to get the consent back (which is almost impossible) or you need to anonymize or remove that data.

  To anonymize previously tracked data, we are actively working on a feature to do just that directly within Matomo. Alternatively, you may also set up the deletion of logs after a certain amount of time.

  We really hope you enjoyed reading this article. GDPR is still on the go and we are pretty sure you have a lot of questions about it. You probably would like to share our vision about it. So do not hesitate to ask us through our contact form to see how we are interpreting GDPR at Matomo and InnoCraft.

  The post How to not process any personal data with Matomo and what it means for you appeared first on Analytics Platform - Matomo.

• Metadata disappears when hevc_nvenc is used in ffmpeg (Estimated to be overwrite with null value.)

  30 janvier 2020, par Dashhh

  disappear metadata using at heve_nvenc

  • When using h264_cuvid and hevc_nvenc through ffmpeg on my server, the metadata of the files that come out of the encoding output is lost.
    There was no such thing in h264_nvenc. Also, the libx265 encoding result has metadata.

  • The ffmpeg command I used is as follows.

  ffmpeg -v debug -vsync 0 -hwaccel cuvid -hwaccel_device 2 -c:v h264_cuvid \
  
  -i ./intputfile.mp4 -map_metadata 0 -map_metadata 0:s:0 -map_metadata:s:v 0:s:v -map_metadata:s:a 0:s:a \
  
  -map 0:v -vf hwdownload,format=nv12,format=yuv420p,scale=iw*2:ih*2 \
  
  -c:v nvenc_hevc -preset slow -rc vbr_hq -pix_fmt yuv420p -b:v 5M -maxrate:v 8M -gpu 2 \
  
  -map 0:a -c:a copy \
  
  -color_range tv -colorspace bt709 -color_trc bt709 -color_primaries bt709 \
  
  hevc_output_test.mp4

  ---

  • Refer to the image below for property information on the generated file.

  

  • In the image in the link, the left pane is a playable h264_nvenc encoding deliverable file.
  • In the image in the link, the right pane is a non-replayable hevc_nvenc encoding deliverable
    file.
    • Program available for play : VLC
    • Unable to play : Ubuntu 18.04 Base Video Player, Samsung Smart TV (h264_nvenc and libx265 encoded deliverables files can be played).
  • Please refer to the image below for an error message displayed in the Player when it is not possible to play. (This is the default video player for ubuntu 18.04.)

  

  • I added ‘-f matroska’ option to the command written above and made a result.(The result file extension has also been changed to "mkv")
    Unusually, metadata exists in the process in which images are made as follows :
    

  • However, at the end of encoding, this metadata disappears again. (It looks exactly like the first image in the right pane.)

  • The path to which this information was obtained was identified by right-clicking the file in Ubuntu (18.04) to the category "Properties" - "video/audio".
    Can you tell me why this is happening ?
    If not, please advise me where I should look.

  CUDA : 10.2

  Video SDK Version (Nvenc version) : 9.1

  GPU : GeForce GTX 1080 Ti

  Driver Version : 440.33.01