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• ErrorCode 1 while merging 2 videos

  10 janvier 2023, par Stéphane de Luca

  I am trying to merge two videos but have an error code 1.

  


  My command is as follows :

  


    final command =
        '-y $commandPaths -filter_complex \'[0:0][1:0]concat=n=${paths.length}:v=1:a=0[out]\' -map \'[out]\' $outputPath';


  


  I see the following error :

  


  


  I/flutter (17343) : Stream specifier ':0' in filtergraph description [0:0][1:0]concat=n=2:v=1:a=0[out] matches no streams.

  


  


  Not easy to understand what caused this as I am not familiar with the lib.

  


  I saw in a so that someone had the issue caused by the tw videos not having the same size.

  


  The logs are as follows :

  


  I/flutter (17343): Duration: 2.9345
I/flutter (17343): /data/user/0/com.example.shokaze/cache/PXL_20230104_041034414.TS.mp4 exists?: true
I/flutter (17343): Duration: 3.0677
I/flutter (17343): /data/user/0/com.example.shokaze/cache/PXL_20230104_041054379.TS.mp4 exists?: true
I/flutter (17343): Output duration; 6.0022


I/flutter (17343): About to executing: -y -i /data/user/0/com.example.shokaze/cache/PXL_20230104_041034414.TS.mp4 -i /data/user/0/com.example.shokaze/cache/PXL_20230104_041054379.TS.mp4  -filter_complex '[0:0][1:0]concat=n=2:v=1:a=0[out]' -map '[out]' /data/user/0/com.example.shokaze/app_flutter/output.mp4



I/flutter (17343): ffmpeg version n5.1.2
I/flutter (17343):  Copyright (c) 2000-2022 the FFmpeg developers
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):   built with Android (7155654, based on r399163b1) clang version 11.0.5 (https://android.googlesource.com/toolchain/llvm-project 87f1315dfbea7c137aa2e6d362dbb457e388158d)
I/flutter (17343): 
I/flutter (17343):   configuration: --cross-prefix=aarch64-linux-android- --sysroot=/files/android-sdk/ndk/22.1.7171670/toolchains/llvm/prebuilt/linux-x86_64/sysroot --prefix=/home/taner/Projects/ffmpeg-kit/prebuilt/android-arm64/ffmpeg --pkg-config=/usr/bin/pkg-config --enable-version3 --arch=aarch64 --cpu=armv8-a --target-os=android --enable-neon --enable-asm --enable-inline-asm --ar=aarch64-linux-android-ar --cc=aarch64-linux-android24-clang --cxx=aarch64-linux-android24-clang++ --ranlib=aarch64-linux-android-ranlib --strip=aarch64-linux-android-strip --nm=aarch64-linux-android-nm --extra-libs='-L/home/taner/Projects/ffmpeg-kit/prebuilt/android-arm64/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 --disab
I/flutter (17343): 
I/flutter (17343):   libavutil      57. 28.100 / 57. 28.100
I/flutter (17343): 
I/flutter (17343):   libavcodec     59. 37.100 / 59. 37.100
I/flutter (17343): 
I/flutter (17343):   libavformat    59. 27.100 / 59. 27.100
I/flutter (17343): 
I/flutter (17343):   libavdevice    59.  7.100 / 59.  7.100
I/flutter (17343): 
I/flutter (17343):   libavfilter     8. 44.100 /  8. 44.100
I/flutter (17343): 
I/flutter (17343):   libswscale      6.  7.100 /  6.  7.100
I/flutter (17343): 
I/flutter (17343):   libswresample   4.  7.100 /  4.  7.100
I/flutter (17343): 
I/flutter (17343): Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/data/user/0/com.example.shokaze/cache/PXL_20230104_041034414.TS.mp4':
I/flutter (17343): 
I/flutter (17343):   Metadata:
I/flutter (17343): 
I/flutter (17343):     major_brand     : 
I/flutter (17343): isom
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):     minor_version   : 
I/flutter (17343): 131072
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):     compatible_brands: 
I/flutter (17343): isomiso2mp41
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):     creation_time   : 
I/flutter (17343): 2023-01-04T04:10:38.000000Z
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):     location        : 
I/flutter (17343): +48.8638+2.4376/
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):     location-eng    : 
I/flutter (17343): +48.8638+2.4376/
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):     com.android.capture.fps: 
I/flutter (17343): 30.000000
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):   Duration: 
I/flutter (17343): 00:00:02.93
I/flutter (17343): , start: 
I/flutter (17343): 0.000000
I/flutter (17343): , bitrate: 
I/flutter (17343): 19691 kb/s
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):   Stream #0:0
I/flutter (17343): [0x1]
I/flutter (17343): (eng)
I/flutter (17343): : Data: none (mett / 0x7474656D), 53 kb/s
I/flutter (17343):  (default)
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):     Metadata:
I/flutter (17343): 
I/flutter (17343):       creation_time   : 
I/flutter (17343): 2023-01-04T04:10:38.000000Z
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):       handler_name    : 
I/flutter (17343): MetaHandle
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):   Stream #0:1
I/flutter (17343): [0x2]
I/flutter (17343): (eng)
I/flutter (17343): : Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 191 kb/s
I/flutter (17343):  (default)
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):     Metadata:
I/flutter (17343): 
I/flutter (17343):       creation_time   : 
I/flutter (17343): 2023-01-04T04:10:38.000000Z
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):       handler_name    : 
I/flutter (17343): SoundHandle
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):       vendor_id       : 
I/flutter (17343): [0][0][0][0]
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):   Stream #0:2
I/flutter (17343): [0x3]
I/flutter (17343): (eng)
I/flutter (17343): : Video: hevc (hvc1 / 0x31637668), yuvj420p(pc, bt709), 1920x1080, 19436 kb/s
I/flutter (17343): , SAR 1:1 DAR 16:9
I/flutter (17343): , 
I/flutter (17343): 29.99 fps, 
I/flutter (17343): 30 tbr, 
I/flutter (17343): 90k tbn
I/flutter (17343):  (default)
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):     Metadata:
I/flutter (17343): 
I/flutter (17343):       creation_time   : 
I/flutter (17343): 2023-01-04T04:10:38.000000Z
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):       handler_name    : 
I/flutter (17343): VideoHandle
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):       vendor_id       : 
I/flutter (17343): [0][0][0][0]
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):   Stream #0:3
I/flutter (17343): [0x4]
I/flutter (17343): (eng)
I/flutter (17343): : Data: none (mett / 0x7474656D)
I/flutter (17343):  (default)
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):     Metadata:
I/flutter (17343): 
I/flutter (17343):       creation_time   : 
I/flutter (17343): 2023-01-04T04:10:38.000000Z
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):       handler_name    : 
I/flutter (17343): MetaHandle
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343): Input #1, mov,mp4,m4a,3gp,3g2,mj2, from '/data/user/0/com.example.shokaze/cache/PXL_20230104_041054379.TS.mp4':
I/flutter (17343): 
I/flutter (17343):   Metadata:
I/flutter (17343): 
I/flutter (17343):     major_brand     : 
I/flutter (17343): isom
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):     minor_version   : 
I/flutter (17343): 131072
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):     compatible_brands: 
I/flutter (17343): isomiso2mp41
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):     creation_time   : 
I/flutter (17343): 2023-01-04T04:10:58.000000Z
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):     location        : 
I/flutter (17343): +48.8638+2.4376/
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):     location-eng    : 
I/flutter (17343): +48.8638+2.4376/
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):     com.android.capture.fps: 
I/flutter (17343): 30.000000
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):   Duration: 
I/flutter (17343): 00:00:03.07
I/flutter (17343): , start: 
I/flutter (17343): 0.000000
I/flutter (17343): , bitrate: 
I/flutter (17343): 20104 kb/s
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):   Stream #1:0
I/flutter (17343): [0x1]
I/flutter (17343): (eng)
I/flutter (17343): : Data: none (mett / 0x7474656D), 54 kb/s
I/flutter (17343):  (default)
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):     Metadata:
I/flutter (17343): 
I/flutter (17343):       creation_time   : 
I/flutter (17343): 2023-01-04T04:10:58.000000Z
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):       handler_name    : 
I/flutter (17343): MetaHandle
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):   Stream #1:1
I/flutter (17343): [0x2]
I/flutter (17343): (eng)
I/flutter (17343): : Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 191 kb/s
I/flutter (17343):  (default)
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):     Metadata:
I/flutter (17343): 
I/flutter (17343):       creation_time   : 
I/flutter (17343): 2023-01-04T04:10:58.000000Z
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):       handler_name    : 
I/flutter (17343): SoundHandle
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):       vendor_id       : 
I/flutter (17343): [0][0][0][0]
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):   Stream #1:2
I/flutter (17343): [0x3]
I/flutter (17343): (eng)
I/flutter (17343): : Video: hevc (hvc1 / 0x31637668), yuvj420p(pc, bt709), 1920x1080, 19848 kb/s
I/flutter (17343): , SAR 1:1 DAR 16:9
I/flutter (17343): , 
I/flutter (17343): 29.99 fps, 
I/flutter (17343): 30 tbr, 
I/flutter (17343): 90k tbn
I/flutter (17343):  (default)
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):     Metadata:
I/flutter (17343): 
I/flutter (17343):       creation_time   : 
I/flutter (17343): 2023-01-04T04:10:58.000000Z
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):       handler_name    : 
I/flutter (17343): VideoHandle
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):       vendor_id       : 
I/flutter (17343): [0][0][0][0]
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):     Side data:
I/flutter (17343): 
I/flutter (17343):       
I/flutter (17343): displaymatrix: rotation of -90.00 degrees
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):   Stream #1:3
I/flutter (17343): [0x4]
I/flutter (17343): (eng)
I/flutter (17343): : Data: none (mett / 0x7474656D)
I/flutter (17343):  (default)
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):     Metadata:
I/flutter (17343): 
I/flutter (17343):       creation_time   : 
I/flutter (17343): 2023-01-04T04:10:58.000000Z
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):       handler_name    : 
I/flutter (17343): MetaHandle
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343): Stream specifier ':0' in filtergraph description [0:0][1:0]concat=n=2:v=1:a=0[out] matches no streams.
I/flutter (17343): 
I/flutter (17343): executing: -y -i /data/user/0/com.example.shokaze/cache/PXL_20230104_041034414.TS.mp4 -i /data/user/0/com.example.shokaze/cache/PXL_20230104_041054379.TS.mp4  -filter_complex '[0:0][1:0]concat=n=2:v=1:a=0[out]' -map '[out]' /data/user/0/com.example.shokaze/app_flutter/output.mp4
I/flutter (17343): error 1


  


  Therefore I tried to add a resize in the command without success as follows :.

  


      final command =
        '$commandPaths -filter_complex \'[0:v]scale=1920:1080[0:a] [1:v]scale=1920:1080[1:a] concat=n=${paths.length}:v=1:a=1[v][a]\' -map \'[v]\' -map \'[a]\' $outputPath';



  


  This time the logs say :

  


  


  I/flutter (17343) : [AVFilterGraph @ 0xb4000074ea6265f0] No output pad can be associated to link label '1:v'.

  


  


  The logs are as follows :

  


  I/flutter (17343): Duration: 2.9345
I/flutter (17343): /data/user/0/com.example.shokaze/cache/PXL_20230104_041034414.TS.mp4 exists?: true
I/flutter (17343): Duration: 3.0677
I/flutter (17343): /data/user/0/com.example.shokaze/cache/PXL_20230104_041054379.TS.mp4 exists?: true
I/flutter (17343): Output duration; 6.0022
I/flutter (17343): About to executing: -i /data/user/0/com.example.shokaze/cache/PXL_20230104_041034414.TS.mp4 -i /data/user/0/com.example.shokaze/cache/PXL_20230104_041054379.TS.mp4  -filter_complex '[0:v]scale=1920:1080[0:a] [1:v]scale=1920:1080[1:a] concat=n=2:v=1:a=1[v][a]' -map '[v]' -map '[a]' /data/user/0/com.example.shokaze/app_flutter/output.mp4
I/flutter (17343): ffmpeg version n5.1.2
I/flutter (17343):  Copyright (c) 2000-2022 the FFmpeg developers
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):   built with Android (7155654, based on r399163b1) clang version 11.0.5 (https://android.googlesource.com/toolchain/llvm-project 87f1315dfbea7c137aa2e6d362dbb457e388158d)
I/flutter (17343): 
I/flutter (17343):   configuration: --cross-prefix=aarch64-linux-android- --sysroot=/files/android-sdk/ndk/22.1.7171670/toolchains/llvm/prebuilt/linux-x86_64/sysroot --prefix=/home/taner/Projects/ffmpeg-kit/prebuilt/android-arm64/ffmpeg --pkg-config=/usr/bin/pkg-config --enable-version3 --arch=aarch64 --cpu=armv8-a --target-os=android --enable-neon --enable-asm --enable-inline-asm --ar=aarch64-linux-android-ar --cc=aarch64-linux-android24-clang --cxx=aarch64-linux-android24-clang++ --ranlib=aarch64-linux-android-ranlib --strip=aarch64-linux-android-strip --nm=aarch64-linux-android-nm --extra-libs='-L/home/taner/Projects/ffmpeg-kit/prebuilt/android-arm64/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 --disab
I/flutter (17343): 
I/flutter (17343):   libavutil      57. 28.100 / 57. 28.100
I/flutter (17343): 
I/flutter (17343):   libavcodec     59. 37.100 / 59. 37.100
I/flutter (17343): 
I/flutter (17343):   libavformat    59. 27.100 / 59. 27.100
I/flutter (17343): 
I/flutter (17343):   libavdevice    59.  7.100 / 59.  7.100
I/flutter (17343): 
I/flutter (17343):   libavfilter     8. 44.100 /  8. 44.100
I/flutter (17343): 
I/flutter (17343):   libswscale      6.  7.100 /  6.  7.100
I/flutter (17343): 
I/flutter (17343):   libswresample   4.  7.100 /  4.  7.100
I/flutter (17343): 
I/flutter (17343): Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/data/user/0/com.example.shokaze/cache/PXL_20230104_041034414.TS.mp4':
I/flutter (17343): 
I/flutter (17343):   Metadata:
I/flutter (17343): 
I/flutter (17343):     major_brand     : 
I/flutter (17343): isom
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):     minor_version   : 
I/flutter (17343): 131072
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):     compatible_brands: 
I/flutter (17343): isomiso2mp41
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):     creation_time   : 
I/flutter (17343): 2023-01-04T04:10:38.000000Z
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):     location        : 
I/flutter (17343): +48.8638+2.4376/
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):     location-eng    : 
I/flutter (17343): +48.8638+2.4376/
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):     com.android.capture.fps: 
I/flutter (17343): 30.000000
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):   Duration: 
I/flutter (17343): 00:00:02.93
I/flutter (17343): , start: 
I/flutter (17343): 0.000000
I/flutter (17343): , bitrate: 
I/flutter (17343): 19691 kb/s
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):   Stream #0:0
I/flutter (17343): [0x1]
I/flutter (17343): (eng)
I/flutter (17343): : Data: none (mett / 0x7474656D), 53 kb/s
I/flutter (17343):  (default)
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):     Metadata:
I/flutter (17343): 
I/flutter (17343):       creation_time   : 
I/flutter (17343): 2023-01-04T04:10:38.000000Z
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):       handler_name    : 
I/flutter (17343): MetaHandle
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):   Stream #0:1
I/flutter (17343): [0x2]
I/flutter (17343): (eng)
I/flutter (17343): : Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 191 kb/s
I/flutter (17343):  (default)
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):     Metadata:
I/flutter (17343): 
I/flutter (17343):       creation_time   : 
I/flutter (17343): 2023-01-04T04:10:38.000000Z
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):       handler_name    : 
I/flutter (17343): SoundHandle
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):       vendor_id       : 
I/flutter (17343): [0][0][0][0]
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):   Stream #0:2
I/flutter (17343): [0x3]
I/flutter (17343): (eng)
I/flutter (17343): : Video: hevc (hvc1 / 0x31637668), yuvj420p(pc, bt709), 1920x1080, 19436 kb/s
I/flutter (17343): , SAR 1:1 DAR 16:9
I/flutter (17343): , 
I/flutter (17343): 29.99 fps, 
I/flutter (17343): 30 tbr, 
I/flutter (17343): 90k tbn
I/flutter (17343):  (default)
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):     Metadata:
I/flutter (17343): 
I/flutter (17343):       creation_time   : 
I/flutter (17343): 2023-01-04T04:10:38.000000Z
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):       handler_name    : 
I/flutter (17343): VideoHandle
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):       vendor_id       : 
I/flutter (17343): [0][0][0][0]
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):   Stream #0:3
I/flutter (17343): [0x4]
I/flutter (17343): (eng)
I/flutter (17343): : Data: none (mett / 0x7474656D)
I/flutter (17343):  (default)
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):     Metadata:
I/flutter (17343): 
I/flutter (17343):       creation_time   : 
I/flutter (17343): 2023-01-04T04:10:38.000000Z
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):       handler_name    : 
I/flutter (17343): MetaHandle
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343): Input #1, mov,mp4,m4a,3gp,3g2,mj2, from '/data/user/0/com.example.shokaze/cache/PXL_20230104_041054379.TS.mp4':
I/flutter (17343): 
I/flutter (17343):   Metadata:
I/flutter (17343): 
I/flutter (17343):     major_brand     : 
I/flutter (17343): isom
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):     minor_version   : 
I/flutter (17343): 131072
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):     compatible_brands: 
I/flutter (17343): isomiso2mp41
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):     creation_time   : 
I/flutter (17343): 2023-01-04T04:10:58.000000Z
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):     location        : 
I/flutter (17343): +48.8638+2.4376/
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):     location-eng    : 
I/flutter (17343): +48.8638+2.4376/
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):     com.android.capture.fps: 
I/flutter (17343): 30.000000
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):   Duration: 
I/flutter (17343): 00:00:03.07
I/flutter (17343): , start: 
I/flutter (17343): 0.000000
I/flutter (17343): , bitrate: 
I/flutter (17343): 20104 kb/s
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):   Stream #1:0
I/flutter (17343): [0x1]
I/flutter (17343): (eng)
I/flutter (17343): : Data: none (mett / 0x7474656D), 54 kb/s
I/flutter (17343):  (default)
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):     Metadata:
I/flutter (17343): 
I/flutter (17343):       creation_time   : 
I/flutter (17343): 2023-01-04T04:10:58.000000Z
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):       handler_name    : 
I/flutter (17343): MetaHandle
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):   Stream #1:1
I/flutter (17343): [0x2]
I/flutter (17343): (eng)
I/flutter (17343): : Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 191 kb/s
I/flutter (17343):  (default)
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):     Metadata:
I/flutter (17343): 
I/flutter (17343):       creation_time   : 
I/flutter (17343): 2023-01-04T04:10:58.000000Z
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):       handler_name    : 
I/flutter (17343): SoundHandle
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):       vendor_id       : 
I/flutter (17343): [0][0][0][0]
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):   Stream #1:2
I/flutter (17343): [0x3]
I/flutter (17343): (eng)
I/flutter (17343): : Video: hevc (hvc1 / 0x31637668), yuvj420p(pc, bt709), 1920x1080, 19848 kb/s
I/flutter (17343): , SAR 1:1 DAR 16:9
I/flutter (17343): , 
I/flutter (17343): 29.99 fps, 
I/flutter (17343): 30 tbr, 
I/flutter (17343): 90k tbn
I/flutter (17343):  (default)
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):     Metadata:
I/flutter (17343): 
I/flutter (17343):       creation_time   : 
I/flutter (17343): 2023-01-04T04:10:58.000000Z
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):       handler_name    : 
I/flutter (17343): VideoHandle
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):       vendor_id       : 
I/flutter (17343): [0][0][0][0]
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):     Side data:
I/flutter (17343): 
I/flutter (17343):       
I/flutter (17343): displaymatrix: rotation of -90.00 degrees
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):   Stream #1:3
I/flutter (17343): [0x4]
I/flutter (17343): (eng)
I/flutter (17343): : Data: none (mett / 0x7474656D)
I/flutter (17343):  (default)
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):     Metadata:
I/flutter (17343): 
I/flutter (17343):       creation_time   : 
I/flutter (17343): 2023-01-04T04:10:58.000000Z
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343):       handler_name    : 
I/flutter (17343): MetaHandle
I/flutter (17343): 
I/flutter (17343): 
I/flutter (17343): [AVFilterGraph @ 0xb4000074ea6265f0] No output pad can be associated to link label '1:v'.
I/flutter (17343): 
I/flutter (17343): Error initializing complex filters.
I/flutter (17343): 
I/flutter (17343): Invalid argument
I/flutter (17343): 
I/flutter (17343): Conversion failed!
I/flutter (17343): 
I/flutter (17343): executing: -i /data/user/0/com.example.shokaze/cache/PXL_20230104_041034414.TS.mp4 -i /data/user/0/com.example.shokaze/cache/PXL_20230104_041054379.TS.mp4  -filter_complex '[0:v]scale=1920:1080[0:a] [1:v]scale=1920:1080[1:a] concat=n=2:v=1:a=1[v][a]' -map '[v]' -map '[a]' /data/user/0/com.example.shokaze/app_flutter/output.mp4
I/flutter (17343): error 1


  


• 7 Reasons to Migrate from Google Analytics to Matomo Now

  15 mai 2022, par Erin

  The release of Google Analytics 4 (GA4), and the subsequent depreciation of Universal Analytics, has caused a stir amongst webmasters, SEO experts, marketers and the likes.

  Google’s Universal Analytics is the most widely used web analytics platform in the world, but from 1 July 2023, it will no longer process any new data. Google is now pushing users to set up GA4 tracking imminently.

  If you’re like many and wondering if you should upgrade to Google Analytics 4, there are two key reasons why this might be a risk :

  1. GDPR violations : recent rulings have deemed Google Analytics illegal in France and Austria, and it’s likely that this trend will continue across the EU.
  2. Data loss : users switching to Google Analytics 4 can’t migrate their data from Universal Analytics.

  To mitigate these risks, many organisations are looking to switch to a Google Analytics alternative like Matomo. This is an ideal option for organisations that want to take ownership of their data, get compliant with privacy regulations and save themselves the stress of Google deprecating the software they rely on.

  Whilst there are two major reasons to steer clear of Google Analytics 4, there are 7 reasons why migrating to Matomo instead could save your business time, money and peace of mind.

  If you want to avoid the pitfalls of GA4 and are thinking about migrating from Universal Analytics to Matomo, here’s why you should make the switch now.

  1. Keep your historical Universal Analytics data

  Users switching to Google Analytics 4 will be disappointed to find out that GA4 does not accept data imports from Universal Analytics. On top of that, Google also announced that after Universal Analytics stops processing new data (1 July 2023), users will only be able to access this data for “at least six months”. 

  Years of valuable insights will be completely wiped and organisations will not be able to report on year over year results.

  Fortunately, any organisation using Universal Analytics can import this data into Matomo using our Google Analytics Importer plugin. So you can reduce business disruptions and retain years of valuable web analytics data when you switch to Matomo.

  Our comprehensive migration documentation features a handy video, written guides and FAQs to ensure a smooth migration process.

  2. Ease of use

  Web analytics is complicated enough without having to navigate confusing platform user interfaces (UIs). One of GA4’s biggest drawbacks is the “awful and unusable” interface which has received an overwhelming amount of negative backlash online. 

  Matomo’s intuitive UI contains many of the familiar features that made Universal Analytics so well-liked. You’ll find the same popular features like Visitors, Behaviour, and Acquisition to name a few.

  

  User Flow in Matomo

  When you switch to Matomo you can get up to speed quickly and spend more time focusing on high-value tasks, rather than learning about everything new in GA4.

  3. 100% accurate unsampled data

  GA4 implements data sampling and machine learning to fill gaps. Often what you are basing critical business decisions on is actually an estimate of activity. 

  Matomo does not use data sampling, so this guarantees you will always see the full picture.

  “My primary reason to use Matomo is to get the unsampled data, [...] if your website gets lots of traffic and you can’t afford an enterprise level tool like GA premium [GA360] then Matomo is your best choice.”

  With Matomo you can be confident your data-driven decisions are being made with real data.

  4. Privacy by design

  Built-in privacy has always been at the core of Matomo. One key method we use to achieve this, is by giving you 100% data ownership of your web analytics data. You don’t ever have to worry about the data landing in the wrong hands or being used in unethical ways – like unsolicited advertising. 

  On the contrary, Google Analytics is regularly under fire for controversial uses of data. While Google has made changes to make GA4 more privacy-focused, it’s all just smoke and mirrors. The data collected from Google Analytics accounts is used by Google to create digital profiles on internet users, which is then used for advertising. 

  Consumers are becoming increasingly concerned about how businesses are using their data. Businesses that develop privacy strategies, utilise privacy-focused tools will gain a competitive advantage and a loyal customer-base. 

  Prioritise the protection of your user data by switching to a privacy-by-design analytics solution.

  5. Compliance with global privacy laws

  To date, Google Analytics has been deemed illegal to use in France and Austria due to data transfers to the US. Upgrading to GA4 doesn’t make this problem go away either since data is still transferred to the US. 

  Matomo is easily configured to follow even the strictest of privacy laws like GDPR, HIPAA, CCPA, LGPD and PECR. Here’s how :

  • Matomo’s opt-out mechanism lets users opt-out of web analytics tracking
  • You can configure analytics for data retention of raw data and aggregated reports
  • Users can anonymise IP addresses as well as implement other data anonymisation techniques
  • Matomo can respect DoNotTrack setting
  • Users can set up Matomo so it doesn’t process any personal data or PII (personally identifiable information)
  • It’s easy to set shorter expiration dates for tracking cookies
  • Matomo allows you to disable Visits Log and Visitor Profile
  • Users aren’t tracked across websites unless specifically enabled

  Matomo can also be used without cookie consent banners (unlike with Google Analytics, which will always need user consent to track). Matomo has been approved by the French Data Protection Authority (CNIL) as one of the select few web analytics tools that can be used to collect data without tracking consent.

  Every year more countries are drafting legislation that mirrors the European Union’s GDPR (like the Brazilian LGPD). Matomo is designed to stay data-privacy law compliant, and always will be.

  Stay on top of global privacy laws and reduce the time you spend on compliance by switching to a privacy-compliant solution. 

  6. All-in-one web analytics

  Matomo gives you easy access to Heatmaps, Session Recordings, A/B testing, Funnels analytics, and more right out of the box. This means that digital marketing, UX and procurement teams won’t need to set up and manage multiple tools for behavioural analytics – it’s all in one place.

  Learn more about your audience, save money and reduce complexity by switching to an all-in-one analytics solution.

  Check out Matomo’s extensive product features.

  

  Page Scroll Depth in Matomo

  7. Tag Manager built-in

  Unlike GA4, the Matomo Tag Manager comes built-in for an efficient and consistent user experience. Matomo Tag Manager offers a pain-free solution for embedding tracking codes on your website without needing help from a web developer or someone with technical knowledge.

  Help your Marketing team track more website actions and give time back to your web developer by switching to Matomo Tag Manager.

  Final Thoughts

  Google Analytics is free to use, but the surrounding legal issues with the platform and implications of switching to GA4 will make migrating a tough choice for many businesses. 

  Now is the chance for organisations to step away from the advertising tech giant, take ownership of web analytics data and get compliant. Switch to the leading Google Analytics alternative and see why over 1 million websites choose Matomo for their web analytics.

  Ready to get started with your own Google Analytics to Matomo migration ? Try Matomo free for 21 days now – no credit card required. 

  21 day free trial. No credit card required.

  Your email address
  

  Your website address
  

  Your Analytics subdomain will be .matomo.cloud (change)

  Choose your analytics subdomain
  

  .matomo.cloud

  I hereby accept the terms and conditions and the data processing agreeement (DPA).

  
  Your information will be used to create an account on our cloud service. For more information please consult our privacy policy.
  
  

  » Start improving your websites now

  

• Google Analytics 4 (GA4) vs Matomo

  7 avril 2022, par Erin

  Google announced that Universal Analytics’ days are numbered. Universal Analytics will be replaced by Google Analytics 4 (or GA4) on the 1st of July 2023. 

  If Google Analytics users want to compare year-on-year data, they have until July 2022 to get set up and start collecting data before the sun sets on Universal Analytics (or UA).

  But is upgrading to Google Analytics 4 the right move ? There’s a lot to consider, and many organisations are looking for an alternative to Google Analytics. So in this blog, we’ll compare GA4 to Matomo – the leading Google Analytics alternative. 

  In this blog, we’ll look at :

  What is Matomo ?

  Matomo is a powerful privacy-first web analytics platform that gives you 100% data ownership. First launched in 2007, Matomo is now the world’s leading open-source web analytics platform and is used by more than 1 million websites. 

  Matomo’s core values are based on ethical data collection and processing. Consistently more businesses and organisations from around the globe are adopting data-privacy-compliant web analytics solutions like Matomo. 

  Matomo offers both Cloud and On-Premise solutions (and a five-star rated WordPress plugin), making for an adaptable and flexible solution. 

  What is Google Analytics 4 ?

  Google Analytics 4 is the latest version of Google Analytics and represents a completely new approach to data-modelling than its predecessor, Universal Analytics. For an in-depth look at how GA4 and UA compare, check out this Google Analytics 4 vs Universal Analytics comparison. 

  Google Analytics 4 will soon be the only available version of analytics software from Google. So what’s the issue ? Surely, in 2022, Google makes it easy to migrate to their newest (and only) analytics platform ? Not quite.

  Google Analytics 4 vs Matomo

  Whilst the core purpose of GA4 and Matomo is similar (providing web analytics that help to optimise your website and grow your business), there are several key differences that organisations should consider before making the switch.

  Importing Historical Data from Universal Analytics

  Google Analytics 4

  Users assuming that historical data from Universal Analytics could be imported into Google Analytics 4 were faced with swift disappointment. Unfortunately, Google Analytics 4 does not have an option to import data from its predecessor, Universal Analytics. This means that businesses won’t be able to import and compare data from previous years.

  Matomo

  If you don’t want to start from scratch with your web analytics data, then Matomo is an ideal solution for data continuity. Matomo offers users the ability to import their historical Universal Analytics data. So you can keep all that valuable historical data you’ve collected over the years.

  

  User Interface

  Google Analytics 4

  GA4’s new user interface has been met with mixed reviews. Many claim that it’s overly complex and difficult to navigate. Some have even suggested that the tool has been designed specifically for enterprises with specialised analytics teams. 

  

  Matomo

  Matomo, on the other hand, is recognised for an easy to use interface, with a rating of 4.5 out of 5 stars for ease of use on Capterra. Matomo perfectly balances powerful features with a user-friendly interface so valuable insights are only a click away. There’s a reason why over 1 million websites are using Matomo. 

  

  Advanced Behavioural Analytics Features 

  Google Analytics 4

  While Google Analytics is undoubtedly robust in some areas (machine learning, for instance), what it really lacks is advanced behavioural analytics. Heatmaps, session recordings and other advanced tools can give you valuable insights into how users are engaging with your site. Well beyond pageviews and other metrics.

  Unfortunately, with this new generation of GA, Google still hasn’t introduced these features. So users have to manage subscriptions and tracking in third-party behavioural analytics tools like Hotjar or Lucky Orange, for example. This is inefficient, costly and time-consuming to manage. 

  

  Matomo 

  Meanwhile, Matomo is a one-stop shop for all of your web analytics needs. Not only do you get access to the metrics you’ve grown accustomed to with Universal Analytics, but you also get built-in behavioural analytics features like Heatmaps, Scroll Depth, Session Recordings and more. 

  Want to know if visitors are reaching your call to action at the bottom of the page ? Scroll Depth will answer that.

  Want to know why visitors aren’t clicking through to the next page ? Heatmaps will give you the insights you need.

  You get the picture – the full picture, that is. 

  

  Data Accuracy

  Google Analytics 4

  GA4 aims to make web and app analytics more privacy-centric by reducing the reliance on cookies to record certain events across platforms and devices. 

  However, when site and application visitors opt-out of cookie tracking, GA4 instead relies on machine learning to fill in the gaps. Data sampling could mean that your business is making business decisions based on inaccurate reports. 

  Matomo

  Data is the backbone of web analytics, so why make critical business decisions on sampled data ? With Matomo, you’re guaranteed 100% unsampled accurate data. So you can rest assured that any decisions you make are based on actual facts. 

  Compliance with Privacy Laws (GDPR, CCPA, etc.) 

  Google Analytics 4

  Google is making changes in an attempt to become compliant with privacy laws. However, even with GA4, users are still transferring data to the US. For this reason, both Austrian and French governments have ruled Google Analytics illegal under GDPR.

  The only possible workaround is “Privacy Shield 2.0”, but GDPR experts are still sceptical of this one. 

  Matomo

  If compliance with global privacy laws is a concern (and it should be), then Matomo is the clear winner here. 

  As an EU hosted web analytics tool, your data is stored in Europe, and no data is transferred to the US. On the other hand, if you choose to self-host, the data is stored in your country of choice.

  In addition, with cookieless tracking enabled, you can say goodbye to those pesky cookie consent screens. 

  Also, remember that under GDPR, and many other data privacy laws like CCPA and LGPD, end users have a legal right to access, amend and/or erase the personal data collected about them. 

  With Matomo you get 100% ownership of your web analytics data. This means that we don’t on-sell to third parties ; can’t claim ownership of the data ; and you can export your data at any time.

  

  Wrap up

  At the end of the day, the worst thing an organisation can do is nothing. Waiting until July 2023 to migrate to GA4 or another web analytics platform would be very disruptive and costly. Organisations need to consider their options now and start migrating in the next few months. 

  With all that said, moving to Google Analytics 4 could prove to be a costly and time-consuming operation. The global trend towards increased data privacy is a threat to platforms like Google Analytics which uses data for advertising and transfers data across borders.

  With Matomo, you get an easy to use all-in-one web analytics platform and keep your historical Universal Analytics data. Plus, you can future-proof your business by being compliant with global privacy laws and get access to advanced behavioural analytics features. 

  There’s a lot to weigh up here but fortunately, getting started with Matomo is easy. Try it free for 21-days (no credit card required) and see for yourself why over 1 million websites choose Matomo. 

  While this is the end of the road for Universal Analytics, it’s also an opportune time for organisations to find a better fit web analytics tool. 

  21 day free trial. No credit card required.

  Your email address
  

  Your website address
  

  Your Analytics subdomain will be .matomo.cloud (change)

  Choose your analytics subdomain
  

  .matomo.cloud

  I hereby accept the terms and conditions and the data processing agreeement (DPA).

  
  Your information will be used to create an account on our cloud service. For more information please consult our privacy policy.
  
  

  » Start improving your websites now