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  • VideoWriter Doesn't work using openCV, ubuntu, Qt

    25 janvier 2023, par underflow223

    My code :

    


    cv::VideoWriter(
  strFile.toStdString(),
  cv::VideoWriter::fourcc('m','p','4','v'),
  nfps,
  cv::Size(1920/nresize, 1080/nresize)
);


    


    Error message :

    


    [mpeg4_v4l2m2m @ 0x7f50a43c50] arm_release_ver of this libmali is 'g6p0-01eac0', rk_so_ver is '7'.
Could not find a valid device
[mpeg4_v4l2m2m @ 0x7f50a43c50] can't configure encoder


    


    If I use MJPG codec, it works fine thow.

    


    This is OPENCV configure info :

    


    -- General configuration for OpenCV 4.6.0 =====================================
--   Version control:               unknown
-- 
--   Extra modules:
--     Location (extra):            /home/firefly/Downloads/opencv_contrib-4.6.0/modules
--     Version control (extra):     unknown
-- 
--   Platform:
--     Timestamp:                   2023-01-19T02:11:26Z
--     Host:                        Linux 5.10.110 aarch64
--     CMake:                       3.16.3
--     CMake generator:             Unix Makefiles
--     CMake build tool:            /usr/bin/make
--     Configuration:               Release
-- 
--   CPU/HW features:
--     Baseline:                    NEON FP16
-- 
--   C/C++:
--     Built as dynamic libs?:      YES
--     C++ standard:                11
--     C++ Compiler:                /usr/bin/c++  (ver 9.4.0)
--     C++ flags (Release):         -fsigned-char -W -Wall -Wreturn-type -Wnon-virtual-dtor -Waddress -Wsequence-point -Wformat -Wformat-security -Wmissing-declarations -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Wsuggest-override -Wno-delete-non-virtual-dtor -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections    -fvisibility=hidden -fvisibility-inlines-hidden -O3 -DNDEBUG  -DNDEBUG
--     C++ flags (Debug):           -fsigned-char -W -Wall -Wreturn-type -Wnon-virtual-dtor -Waddress -Wsequence-point -Wformat -Wformat-security -Wmissing-declarations -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Wsuggest-override -Wno-delete-non-virtual-dtor -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections    -fvisibility=hidden -fvisibility-inlines-hidden -g  -O0 -DDEBUG -D_DEBUG
--     C Compiler:                  /usr/bin/cc
--     C flags (Release):           -fsigned-char -W -Wall -Wreturn-type -Waddress -Wsequence-point -Wformat -Wformat-security -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wundef -Winit-self -Wpointer-arith -Wshadow -Wuninitialized -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections    -fvisibility=hidden -O3 -DNDEBUG  -DNDEBUG
--     C flags (Debug):             -fsigned-char -W -Wall -Wreturn-type -Waddress -Wsequence-point -Wformat -Wformat-security -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wundef -Winit-self -Wpointer-arith -Wshadow -Wuninitialized -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections    -fvisibility=hidden -g  -O0 -DDEBUG -D_DEBUG
--     Linker flags (Release):      -Wl,--gc-sections -Wl,--as-needed -Wl,--no-undefined  
--     Linker flags (Debug):        -Wl,--gc-sections -Wl,--as-needed -Wl,--no-undefined  
--     ccache:                      NO
--     Precompiled headers:         NO
--     Extra dependencies:          dl m pthread rt
--     3rdparty dependencies:
-- 
--   OpenCV modules:
--     To be built:                 aruco barcode bgsegm bioinspired calib3d ccalib core datasets dnn dnn_objdetect dnn_superres dpm face features2d flann freetype fuzzy gapi hfs highgui img_hash imgcodecs imgproc intensity_transform line_descriptor mcc ml objdetect optflow phase_unwrapping photo plot quality rapid reg rgbd saliency shape stereo stitching structured_light superres surface_matching text tracking ts video videoio videostab wechat_qrcode xfeatures2d ximgproc xobjdetect xphoto
--     Disabled:                    world
--     Disabled by dependency:      -
--     Unavailable:                 alphamat cudaarithm cudabgsegm cudacodec cudafeatures2d cudafilters cudaimgproc cudalegacy cudaobjdetect cudaoptflow cudastereo cudawarping cudev cvv hdf java julia matlab ovis python2 python3 sfm viz
--     Applications:                tests perf_tests apps
--     Documentation:               NO
--     Non-free algorithms:         NO
-- 
--   GUI:                           GTK3
--     GTK+:                        YES (ver 3.24.20)
--       GThread :                  YES (ver 2.64.6)
--       GtkGlExt:                  NO
--     VTK support:                 NO
-- 
--   Media I/O: 
--     ZLib:                        /usr/lib/aarch64-linux-gnu/libz.so (ver 1.2.11)
--     JPEG:                        /usr/lib/aarch64-linux-gnu/libjpeg.so (ver 80)
--     WEBP:                        build (ver encoder: 0x020f)
--     PNG:                         /usr/lib/aarch64-linux-gnu/libpng.so (ver 1.6.37)
--     TIFF:                        /usr/lib/aarch64-linux-gnu/libtiff.so (ver 42 / 4.1.0)
--     JPEG 2000:                   build (ver 2.4.0)
--     OpenEXR:                     build (ver 2.3.0)
--     HDR:                         YES
--     SUNRASTER:                   YES
--     PXM:                         YES
--     PFM:                         YES
-- 
--   Video I/O:
--     DC1394:                      YES (2.2.5)
--     FFMPEG:                      YES
--       avcodec:                   YES (58.54.100)
--       avformat:                  YES (58.29.100)
--       avutil:                    YES (56.31.100)
--       swscale:                   YES (5.5.100)
--       avresample:                YES (4.0.0)
--     GStreamer:                   YES (1.16.2)
--     v4l/v4l2:                    YES (linux/videodev2.h)
-- 
--   Parallel framework:            pthreads
-- 
--   Trace:                         YES (with Intel ITT)
-- 
--   Other third-party libraries:
--     Lapack:                      NO
--     Eigen:                       NO
--     Custom HAL:                  YES (carotene (ver 0.0.1))
--     Protobuf:                    build (3.19.1)
-- 
--   OpenCL:                        YES (no extra features)
--     Include path:                /home/firefly/Downloads/opencv-4.6.0/3rdparty/include/opencl/1.2
--     Link libraries:              Dynamic load
-- 
--   Python (for build):            /usr/bin/python2.7
-- 
--   Java:                          
--     ant:                         NO
--     JNI:                         NO
--     Java wrappers:               NO
--     Java tests:                  NO
-- 
============================================================================================


    


    ffmpeg info :

    


    ============================================================================================
ffmpeg
ffmpeg version 4.2.4-1ubuntu1.0firefly5 Copyright (c) 2000-2020 the FFmpeg developers
  built with gcc 9 (Ubuntu 9.4.0-1ubuntu1~20.04.1)
  configuration: --prefix=/usr --extra-version=1ubuntu1.0firefly5 --toolchain=hardened --libdir=/usr/lib/aarch64-linux-gnu --incdir=/usr/include/aarch64-linux-gnu --arch=arm64 --enable-gpl --disable-stripping --enable-avresample --disable-filter=resample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librsvg --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opencl --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libx264 --enable-libdrm --enable-librga --enable-rkmpp --enable-version3 --disable-libopenh264 --disable-vaapi --disable-vdpau --disable-decoder=h264_v4l2m2m --disable-decoder=vp8_v4l2m2m --disable-decoder=mpeg2_v4l2m2m --disable-decoder=mpeg4_v4l2m2m --enable-shared --disable-doc
  libavutil      56. 31.100 / 56. 31.100
  libavcodec     58. 54.100 / 58. 54.100
  libavformat    58. 29.100 / 58. 29.100
  libavdevice    58.  8.100 / 58.  8.100
  libavfilter     7. 57.100 /  7. 57.100
  libavresample   4.  0.  0 /  4.  0.  0
  libswscale      5.  5.100 /  5.  5.100
  libswresample   3.  5.100 /  3.  5.100
  libpostproc    55.  5.100 / 55.  5.100
Hyper fast Audio and Video encoder
usage: ffmpeg [options] [[infile options] -i infile]... {[outfile options] outfile}...
====================================================================================


    


  • 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


    


  • gstreamer rtsp streaming chain with LGPL elements

    25 avril 2016, par user3612009

    The following chain seem to work well to stream video :

    gst-launch filesrc location=/home/manusha/Downloads/movies/<movie file="file">.mkv ! decodebin ! ffenc_mpeg4 bitrate=5000000 ! rtpmp4vpay mtu=1400 pt=96 ssrc=0 timestamp-offset=0 seqnum-offset=0 send-config=true ! udpsink host=127.0.0.1 port=5000
    
</movie>

    This chain is able to receive the stream and play it :

    gst-launch udpsrc uri=udp://127.0.0.1:5000 caps="application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)MP4V-ES, profile-level-id=(string)1, config=(string)000001b001000001b58913000001000000012000c48d88007d0a041e1463000001b24c61766335322e3132332e30, payload=(int)96, ssrc=(uint)298758266, clock-base=(uint)3097828288, seqnum-base=(uint)63478" ! rtpmp4vdepay ! ffdec_mpeg4 ! autovideosink

    My problem is, both ffdec_mpeg4 and ffenc_mpeg4 are GPL licensed and will not suit my purpose because I need to redistribute them. I am lookiing for advice on alternative stream chains that I can form only with LGPL licensed elements. The streaming to be used only inside a LAN, but it need to support HD quality streaming.

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