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Autres articles (78)
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Organiser par catégorie
17 mai 2013, parDans MédiaSPIP, une rubrique a 2 noms : catégorie et rubrique.
Les différents documents stockés dans MédiaSPIP peuvent être rangés dans différentes catégories. On peut créer une catégorie en cliquant sur "publier une catégorie" dans le menu publier en haut à droite ( après authentification ). Une catégorie peut être rangée dans une autre catégorie aussi ce qui fait qu’on peut construire une arborescence de catégories.
Lors de la publication prochaine d’un document, la nouvelle catégorie créée sera proposée (...) -
Récupération d’informations sur le site maître à l’installation d’une instance
26 novembre 2010, parUtilité
Sur le site principal, une instance de mutualisation est définie par plusieurs choses : Les données dans la table spip_mutus ; Son logo ; Son auteur principal (id_admin dans la table spip_mutus correspondant à un id_auteur de la table spip_auteurs)qui sera le seul à pouvoir créer définitivement l’instance de mutualisation ;
Il peut donc être tout à fait judicieux de vouloir récupérer certaines de ces informations afin de compléter l’installation d’une instance pour, par exemple : récupérer le (...) -
Demande de création d’un canal
12 mars 2010, parEn fonction de la configuration de la plateforme, l’utilisateur peu avoir à sa disposition deux méthodes différentes de demande de création de canal. La première est au moment de son inscription, la seconde, après son inscription en remplissant un formulaire de demande.
Les deux manières demandent les mêmes choses fonctionnent à peu près de la même manière, le futur utilisateur doit remplir une série de champ de formulaire permettant tout d’abord aux administrateurs d’avoir des informations quant à (...)
Sur d’autres sites (4819)
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Inputing a List of Files for Concatenation with Node.js Module fluent-ffmpeg
26 juin 2018, par carpiediemVersion information
- fluent-ffmpeg version : 2.1.2
- ffmpeg version : 3.4.2
- OS : Windows 10
Code to reproduce
ffmpeg('C:/path/to/list.txt').mergeToFile('C:/path/to/out.mp4', 'C:/path/to/temp');
list.txt :
file 'C:/path/to/chunk01.ts'
file 'C:/path/to/chunk02.ts'
file 'C:/path/to/chunk03.ts'
file 'C:/path/to/chunk04.ts'Note : I’ve tried both absolute and relative paths, with the same result.
Expected results
A video file at
C:/path/to/out.mp4
that matches the 4 files in list.txt, concatenated end-to-end.Observed results
An empty file at
C:/path/to/out.mp4
with 0 duration and only 15kB in size. No errors were thrown.This is the command that I’m trying to duplicate (it works as expected, with relative paths in list.txt) :
C:/path/to> ffmpeg -f concat -i list.txt -c copy out.ts
stdout & stderr
stdout was empty. stderr is copied below (with file names modified to match the ones above) :
ffmpeg version 3.4.2 Copyright (c) 2000-2018 the FFmpeg developers
built with gcc 7.3.0 (GCC)
configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-bzlib --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libmfx --enable-cuda --enable-cuvid --enable-d3d11va --enable-nvenc --enable-dxva2 --enable-avisynth
libavutil 55. 78.100 / 55. 78.100
libavcodec 57.107.100 / 57.107.100
libavformat 57. 83.100 / 57. 83.100
libavdevice 57. 10.100 / 57. 10.100
libavfilter 6.107.100 / 6.107.100
libswscale 4. 8.100 / 4. 8.100
libswresample 2. 9.100 / 2. 9.100
libpostproc 54. 7.100 / 54. 7.100
Input #0, tty, from 'C:/path/to/list.txt':
Duration: 00:00:00.08, bitrate: 42 kb/s
Stream #0:0: Video: ansi, pal8, 640x400, 25 fps, 25 tbr, 25 tbn, 25 tbc
Stream mapping:
Stream #0:0 (ansi) -> concat
concat -> Stream #0:0 (libx264)
Press [q] to stop, [?] for help
[libx264 @ 000001e385b45040] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 000001e385b45040] profile High 4:4:4 Predictive, level 3.0, 4:4:4 8-bit
[libx264 @ 000001e385b45040] 264 - core 155 r2901 7d0ff22 - H.264/MPEG-4 AVC codec - Copyleft 2003-2018 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x1:0x111 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=4 threads=6 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
Output #0, mp4, to 'C:/path/to/out.mp4':
Metadata:
encoder : Lavf57.83.100
Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv444p, 640x400, q=-1--1, 25 fps, 12800 tbn, 25 tbc
Metadata:
encoder : Lavc57.107.100 libx264
Side data:
cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
frame= 2 fps=0.0 q=-1.0 Lsize= 15kB time=00:00:00.04 bitrate=3099.0kbits/s speed=1.55x
video:14kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 5.619430%
[libx264 @ 000001e385b45040] frame I:1 Avg QP:12.71 size: 8083
[libx264 @ 000001e385b45040] frame P:1 Avg QP:29.71 size: 5928
[libx264 @ 000001e385b45040] mb I I16..4: 87.9% 0.0% 12.1%
[libx264 @ 000001e385b45040] mb P I16..4: 9.3% 0.0% 0.0% P16..4: 0.4% 0.0% 0.0% 0.0% 0.0% skip:90.3%
[libx264 @ 000001e385b45040] coded y,u,v intra: 17.9% 0.0% 0.0% inter: 0.1% 0.0% 0.0%
[libx264 @ 000001e385b45040] i16 v,h,dc,p: 88% 8% 4% 0%
[libx264 @ 000001e385b45040] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 28% 31% 19% 3% 2% 3% 7% 4% 3%
[libx264 @ 000001e385b45040] Weighted P-Frames: Y:0.0% UV:0.0%
[libx264 @ 000001e385b45040] kb/s:1401.10 -
FFMpeg mixing audio to video creates silent video after audio is added,
25 mars 2018, par 1234567mixing audio to video creates silent video after audio is added, using FFMpeg
this is the command I am using
"-y","-i",j,"-filter_complex","amovie="+audio+":loop=999,asetpts=N/SR/TB,atrim=0:18,adelay=50000|50000,aformat=sample_fmts=fltp:sample_rates=44100:channel_layouts=stereo,volume=1.5[a1];[0:a]aformat=sample_fmts=fltp:sample_rates=44100:channel_layouts=stereo,volume=2.0[a2];[a1][a2]amerge,pan=stereo:c0code>
I have a video which is 2 mins 7 seconds ling, I want to ’mix’ audio to a part starting from 50 seconds to 68 seconds
What i want is to keep original sound from video and mix audio to existing sound of video(not over write) it, (keep old video sound and new audio in video)
what happens is till 50 seconds video has its own sound, from 50 -68 the audio over writes the video sound and from then till end it is silent
what i want is video to have its sound through out the video and mix from 50 -68 seconds the audio to it
this graphic can explain a bit of what i want and what i am getting
What i want
what i am getting
another problem that I am facing is
if i try this on a silent video (video with no sound at all) this code fails this is the error that I am gettingffmpeg version n3.0.1 Copyright (c) 2000-2016 the FFmpeg developers
built with gcc 4.8 (GCC)
configuration: --target-os=linux --cross-prefix=/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/bin/arm-linux-androideabi- --arch=arm --cpu=cortex-a8 --enable-runtime-cpudetect --sysroot=/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/sysroot --enable-pic --enable-libx264 --enable-libass --enable-libfreetype --enable-libfribidi --enable-libmp3lame --enable-fontconfig --enable-pthreads --disable-debug --disable-ffserver --enable-version3 --enable-hardcoded-tables --disable-ffplay --disable-ffprobe --enable-gpl --enable-yasm --disable-doc --disable-shared --enable-static --pkg-config=/home/vagrant/SourceCode/ffmpeg-android/ffmpeg-pkg-config --prefix=/home/vagrant/SourceCode/ffmpeg-android/build/armeabi-v7a --extra-cflags='-I/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/include -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all' --extra-ldflags='-L/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/lib -Wl,-z,relro -Wl,-z,now -pie' --extra-libs='-lpng -lexpat -lm' --extra-cxxflags=
libavutil 55. 17.103 / 55. 17.103
libavcodec 57. 24.102 / 57. 24.102
libavformat 57. 25.100 / 57. 25.100
libavdevice 57. 0.101 / 57. 0.101
libavfilter 6. 31.100 / 6. 31.100
libswscale 4. 0.100 / 4. 0.100
libswresample 2. 0.101 / 2. 0.101
libpostproc 54. 0.100 / 54. 0.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/storage/sdcard0/abcd/Videos/20180325_164206.mp4':
Metadata:
major_brand : mp42
minor_version : 0
compatible_brands: isommp42
creation_time : 2018-03-25 16:44:15
Duration: 00:02:05.21, start: 0.000000, bitrate: 1585 kb/s
Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 720x1280, 1584 kb/s, SAR 1:1 DAR 9:16, 11.83 fps, 90k tbr, 90k tbn, 180k tbc (default)
Metadata:
creation_time : 2018-03-25 16:44:15
handler_name : VideoHandle
[mp3 @ 0xaca26b40] Skipping 0 bytes of junk at 417.
[Parsed_pan_9 @ 0xac9b17e0] This syntax is deprecated. Use '|' to separate the list items.
Stream specifier ':a' in filtergraph description amovie=/storage/sdcard0/abcd/Videos/baby.mp3:loop=999,asetpts=N/SR/TB,atrim=0:18,adelay=50000|50000,aformat=sample_fmts=fltp:sample_rates=44100:channel_layouts=stereo,volume=1.5[a1];[0:a]aformat=sample_fmts=fltp:sample_rates=44100:channel_layouts=stereo,volume=2.0[a2]; [a1][a2]amerge,pan=stereo:c0code>how can we add audio to a silent video
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ErrorCode 1 while merging 2 videos
10 janvier 2023, par Stéphane de LucaI 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