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• ffmpeg seems to output a video with a wrong codec ?

  12 septembre 2020, par asored

  I´m using ffmpeg with flutter and I create a video from a lot of images. The problem : ffmpeg seems to not create a video with a right codec or something else.... please check my description below for concrete informations.

  


  First the code parts :

  


  Creating video from images

  


  -r $settings_fps -i $tempPath/img%04d.jpg -vcodec libx264 -y -an -vf "pad=ceil(iw/2)*2:ceil(ih/2)*2" -shortest  $tempPath/$videoFileName.mp4

  


  Adding audio to the created video

  


  -i ${finalSong.path} -i $videoPath -c:a aac -shortest $tempPath/$newVideoFileName.mp4

  


  This is my video output from console on creating this video :

  


  flutter: ffmpeg version git-2020-01-25-fd11dd500 Copyright (c) 2000-2020 the FFmpeg developers
  built with Apple clang version 11.0.0 (clang-1100.0.33.17)
  configuration: --sysroot=/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS13.2.sdk --prefix=/Users/taner/Projects/mobile-ffmpeg/prebuilt/ios-arm64-apple-darwin/ffmpeg --enable-version3 --arch=aarch64 --cpu=armv8 --target-os=darwin --ar=/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ar --cc=clang --cxx=clang++ --as='/Users/taner/Projects/mobile-ffmpeg/.tmp/gas-preprocessor.pl -arch aarch64 -- clang -arch arm64 -target aarch64-ios-darwin -march=armv8-a+crc+crypto -mcpu=generic -DMOBILE_FFMPEG_ARM64 -Wno-unused-function -Wno-deprecated-declarations -fstrict-aliasing -fembed-bitcode -DIOS -DMOBILE_FFMPEG_BUILD_DATE=20200125 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS13.2.sdk -Oz -miphoneos-version-min=12.1 -I/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS13.2.sdk/usr/include' --ranlib=/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib --strip=/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/strip --enable-neon --enable-cross-compile --enable-pic --enable-asm --enable-inline-asm --enable-optimizations --enable-swscale --enable-static --disable-shared --enable-small --disable-v4l2-m2m --disable-outdev=v4l2 --disable-outdev=fbdev --disable-indev=v4l2 --disable-indev=fbdev --disable-openssl --disable-xmm-clobber-test --disable-debug --disable-neon-clobber-test --disable-programs --disable-postproc --disable-doc --disable-htmlpages --disable-manpages --disable-podpages --disable-txtpages --disable-sndio --disable-schannel --disable-securetransport --disable-xlib --disable-cuda --disable-cuvid --disable-nvenc --disable-vaapi --disable-vdpau --disable-appkit --disable-alsa --disable-cuda --disable-cuvid --disable-nvenc --disable-vaapi --disable-vdpau --enable-gmp --enable-gnutls --enable-libx264 --enable-gpl --enable-libxvid --enable-gpl --enable-libx265 --enable-gpl --enable-libvidstab --enable-gpl --disable-sdl2 --enable-zlib --enable-audiotoolbox --enable-coreimage --enable-bzlib --enable-videotoolbox --enable-avfoundation --enable-iconv
  libavutil      56. 38.100 / 56. 38.100
  libavcodec     58. 65.102 / 58. 65.102
  libavformat    58. 35.101 / 58. 35.101
  libavdevice    58.  9.103 / 58.  9.103
  libavfilter     7. 70.101 /  7. 70.101
  libswscale      5.  6.100 /  5.  6.100
  libswresample   3.  6.100 /  3.  6.100
Input #0, mp3, from '/var/mobile/Containers/Data/Application/AEEF7BB8-36F3-4ECD-824B-B294E9DF7294/Library/Caches/melodic_slow.mp3':
  Metadata:
    encoder         : LAME 32bits version 3.99.5 (http://lame.sf.net)
    TLEN            : 134072
  Duration: 00:02:14.11, start: 0.025057, bitrate: 320 kb/s
    Stream #0:0: Audio: mp3, 44100 Hz, stereo, fltp, 320 kb/s
    Metadata:
      encoder         : LAME3.99r
Input #1, mov,mp4,m4a,3gp,3g2,mj2, from '/var/mobile/Containers/Data/Application/AEEF7BB8-36F3-4ECD-824B-B294E9DF7294/Library/Caches/Memories_163dfbf0-f4cf-11ea-86c6-cd08c5621e56.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf58.35.101
  Duration: 00:00:03.50, start: 0.000000, bitrate: 10069 kb/s
    Stream #1:0(und): Video: h264 (avc1 / 0x31637661), yuvj422p(pc), 1920x1080 [SAR 1:1 DAR 16:9], 10065 kb/s, 24 fps, 24 tbr, 12288 tbn, 48 tbc (default)
    Metadata:
      handler_name    : VideoHandler
Stream mapping:
  Stream #1:0 -> #0:0 (h264 (native) -> h264 (libx264))
  Stream #0:0 -> #0:1 (mp3 (mp3float) -> aac (native))
Press [q] to stop, [?] for help
frame=    0 fps=0.0 q=0.0 size=       0kB time=-577014:32:22.77 bitrate=  -0.0kbits/s speed=N/A
sws_param option is deprecated and ignored
using SAR=1/1
using cpu capabilities: ARMv8 NEON
profile High 4:2:2, level 4.0, 4:2:2, 8-bit
264 - core 159 - H.264/MPEG-4 AVC codec - Copyleft 2003-2019 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=9 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=24 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 '/var/mobile/Containers/Data/Application/AEEF7BB8-36F3-4ECD-824B-B294E9DF7294/Library/Caches/Memories_191007b0-f4cf-11ea-9024-c9fcef51db39.mp4':
  Metadata:
    TLEN            : 134072
    encoder         : Lavf58.35.101
    Stream #0:0(und): Video: h264 (libx264) (avc1 / 0x31637661), yuvj422p(pc, progressive), 1920x1080 [SAR 1:1 DAR 16:9], q=-1--1, 24 fps, 12288 tbn, 24 tbc (default)
    Metadata:
      handler_name    : VideoHandler
      encoder         : Lavc58.65.102 libx264
    Side data:
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A
    Stream #0:1: Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s
    Metadata:
      encoder         : Lavc58.65.102 aac
frame=   47 fps=0.0 q=0.0 size=       0kB time=00:00:00.00 bitrate=N/A speed=   0x
frame=   61 fps= 49 q=28.0 size=     256kB time=00:00:00.23 bitrate=9033.3kbits/s speed=0.187x
frame=   73 fps= 42 q=28.0 size=     512kB time=00:00:00.71 bitrate=5827.4kbits/s speed=0.411x
frame=   84 fps= 21 q=-1.0 Lsize=    3418kB time=00:00:03.50 bitrate=7986.4kbits/s speed=0.856x
video:3359kB audio:55kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.117042%
frame I:1     Avg QP:22.78  size:170700
frame P:22    Avg QP:23.95  size: 83595
frame B:61    Avg QP:28.22  size: 23428
consecutive B-frames:  2.4%  2.4%  0.0% 95.2%
mb I  I16..4:  1.8% 97.3%  0.9%
mb P  I16..4:  0.4% 13.4%  1.0%  P16..4: 39.0% 21.7% 14.2%  0.0%  0.0%    skip:10.3%
mb B  I16..4:  0.1%  2.4%  0.2%  B16..8: 27.0%  6.3%  2.1%  direct: 2.4%  skip:59.5%  L0:39.3% L1:47.8% BI:12.9%
8x8 transform intra:91.6% inter:83.1%
coded y,uvDC,uvAC intra: 88.4% 97.3% 40.9% inter: 21.1% 26.6% 1.7%
i16 v,h,dc,p: 18% 27%  7% 48%
i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 18% 18% 16%  5%  8%  8%  9%  7%  9%
i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 18% 16% 13%  7% 11% 10% 10%  7%  8%
i8c dc,h,v,p: 41% 19% 28% 12%
Weighted P-Frames: Y:0.0% UV:0.0%
ref P L0: 53.9% 22.4% 18.3%  5.4%
ref B L0: 86.7%  9.9%  3.4%
ref B L1: 96.1%  3.9%
kb/s:7860.37
Qavg: 149.884
flutter: ffmpeg version git-2020-01-25-fd11dd500
flutter:  Copyright (c) 2000-2020 the FFmpeg developers
flutter:
flutter:   built with Apple clang version 11.0.0 (clang-1100.0.33.17)
flutter:   configuration: --sysroot=/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS13.2.sdk --prefix=/Users/taner/Projects/mobile-ffmpeg/prebuilt/ios-arm64-apple-darwin/ffmpeg --enable-version3 --arch=aarch64 --cpu=armv8 --target-os=darwin --ar=/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ar --cc=clang --cxx=clang++ --as='/Users/taner/Projects/mobile-ffmpeg/.tmp/gas-preprocessor.pl -arch aarch64 -- clang -arch arm64 -target aarch64-ios-darwin -march=armv8-a+crc+crypto -mcpu=generic -DMOBILE_FFMPEG_ARM64 -Wno-unused-function -Wno-deprecated-declarations -fstrict-aliasing -fembed-bitcode -DIOS -DMOBILE_FFMPEG_BUILD_DATE=20200125 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS13.2.sdk -Oz -miphoneos-version-min=12.1 -I/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS13.2.sdk/usr/include' --ranlib=/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib --strip=/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/strip --enable-neon --enable-cross-compile --enable-pic --enable-asm --enable-inline-asm --enable-optimizations --enable-swscale --enable-static --disable-shared --enable-small --disable-v4l2-m2m --disable-outdev=v4l2 --disable-outdev=fbdev --disable-indev=v4l2 --disable-indev=fbdev --disable-openssl --disable-xmm-clobber-test --disable-debug --disable-neon-clobber-test --disable-programs --disable-postproc --disable-doc --disable-htmlpages --disable-manpages --disable-podpages --disable-txtpages --disable-sndio --disable-schannel --disable-securetransport --disable-xlib --disable-cuda --disable-cuvid --disable-nvenc --disable-vaapi --disable-vdpau --disable-appkit --disable-alsa --disable-cuda --disable-cuvid --disable-nvenc --disable-vaapi --disable-vdpau --enable-gmp --enable-gnutls --enable-libx264 --enable-gpl --enable-libxvid --enable-gpl --enable-libx265 --enable-gpl --enable-libvidstab --enable-gpl --disable-sdl2 --enable-zlib --enable-audiotoolbox --enable-coreimage --enable-bzlib --enable-videotoolbox --enable-avfoundation --enable-iconv
flutter:   libavutil      56. 38.100 / 56. 38.100
flutter:   libavcodec     58. 65.102 / 58. 65.102
flutter:   libavformat    58. 35.101 / 58. 35.101
flutter:   libavdevice    58.  9.103 / 58.  9.103
flutter:   libavfilter     7. 70.101 /  7. 70.101
flutter:   libswscale      5.  6.100 /  5.  6.100
flutter:   libswresample   3.  6.100 /  3.  6.100
flutter: Input #0, image2, from '/var/mobile/Containers/Data/Application/AEEF7BB8-36F3-4ECD-824B-B294E9DF7294/Library/Caches/img%04d.jpg':
flutter:   Duration:
flutter: 00:00:03.40
flutter: , start:
flutter: 0.000000
flutter: , bitrate:
flutter: N/A
flutter:
flutter:     Stream #0:0
flutter: : Video: mjpeg, yuvj422p(pc, bt470bg/unknown/unknown), 1920x1080 [SAR 1:1 DAR 16:9]
flutter: ,
flutter: 25 fps,
flutter: 25 tbr,
flutter: 25 tbn,
flutter: 25 tbc
flutter:
flutter: Stream mapping:
flutter:   Stream #0:0 -> #0:0
flutter:  (mjpeg (native) -> h264 (libx264))
flutter:
flutter: Press [q] to stop, [?] for help
flutter: sws_param option is deprecated and ignored
flutter: using SAR=1/1
flutter: using cpu capabilities: ARMv8 NEON
flutter: profile High 4:2:2, level 4.0, 4:2:2, 8-bit
flutter: 264 - core 159 - H.264/MPEG-4 AVC codec - Copyleft 2003-2019 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=9 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=24 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
flutter: Output #0, mp4, to '/var/mobile/Containers/Data/Application/AEEF7BB8-36F3-4ECD-824B-B294E9DF7294/Library/Caches/Memories_f578a1c0-f4d0-11ea-9e60-5b43394b2511.mp4':
flutter:   Metadata:
flutter:     encoder         :
flutter: Lavf58.35.101
flutter:
flutter:     Stream #0:0
flutter: : Video: h264 (libx264) (avc1 / 0x31637661), yuvj422p(pc), 1920x1080 [SAR 1:1 DAR 16:9], q=-1--1
flutter: ,
flutter: 24 fps,
flutter: 12288 tbn,
flutter: 24 tbc
flutter:
flutter:     Metadata:
flutter:       encoder         :
flutter: Lavc58.65.102 libx264
flutter:
flutter:     Side data:
flutter:
flutter: cpb:
flutter: bitrate max/min/avg: 0/0/0 buffer size: 0
flutter: vbv_delay: N/A
flutter:
flutter: frame=    1 fps=0.0 q=0.0 size=       0kB time=00:00:00.00 bitrate=N/A speed=N/A
flutter: frame=   47 fps=0.0 q=0.0 size=       0kB time=00:00:00.00 bitrate=N/A speed=   0x
flutter: frame=   60 fps= 53 q=28.0 size=     256kB time=00:00:00.16 bitrate=12579.1kbits/s speed=0.147x
flutter: frame=   72 fps= 43 q=28.0 size=     768kB time=00:00:00.66 bitrate=9436.6kbits/s speed=0.401x
flutter: frame=   84 fps= 38 q=28.0 size=    1280kB time=00:00:01.16 bitrate=8987.5kbits/s speed=0.527x
flutter: frame=   85 fps= 19 q=-1.0 Lsize=    4334kB time=00:00:03.41 bitrate=10391.1kbits/s speed=0.773x
flutter: video:4332kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead:
flutter: 0.043800%
flutter:
flutter: frame I:1     Avg QP:22.19  size:178746
flutter: frame P:21    Avg QP:23.69  size:106999
flutter: frame B:63    Avg QP:28.13  size: 31899
flutter: consecutive B-frames:  1.2%  0.0%  0.0% 98.8%
flutter: mb I  I16..4:  2.4% 97.0%  0.6%
flutter: mb P  I16..4:  0.7% 38.2%  0.8%  P16..4: 22.6% 19.2% 15.1%  0.0%  0.0%    skip: 3.3%
flutter: mb B  I16..4:  0.2%  6.7%  0.2%  B16..8: 24.6%  8.6%  3.0%  direct: 4.2%  skip:52.5%  L0:47.8% L1:36.8% BI:15.4%
flutter: 8x8 transform intra:95.8% inter:86.8%
flutter: coded y,uvDC,uvAC intra: 89.3% 95.1% 22.5% inter: 26.3% 28.9% 3.0%
flutter: i16 v,h,dc,p: 20% 33% 22% 24%
flutter: i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 19% 24% 33%  3%  4%  3%  4%  4%  5%
flutter: i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 20% 20% 16%  6% 10%  7%  9%  6%  7%
flutter: i8c dc,h,v,p: 44% 22% 29%  5%
flutter: Weighted P-Frames: Y:0.0% UV:0.0%
flutter: ref P L0: 43.8% 18.2% 23.0% 15.0%
flutter: ref B L0: 69.6% 22.3%  8.1%
flutter: ref B L1: 86.1% 13.9%
flutter: kb/s:10018.70
flutter: Video erfolgreich erstellt
flutter: Ja. Video existiert im Pfad!
flutter: ffmpeg version git-2020-01-25-fd11dd500
flutter:  Copyright (c) 2000-2020 the FFmpeg developers
flutter:
flutter:   built with Apple clang version 11.0.0 (clang-1100.0.33.17)
flutter:   configuration: --sysroot=/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS13.2.sdk --prefix=/Users/taner/Projects/mobile-ffmpeg/prebuilt/ios-arm64-apple-darwin/ffmpeg --enable-version3 --arch=aarch64 --cpu=armv8 --target-os=darwin --ar=/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ar --cc=clang --cxx=clang++ --as='/Users/taner/Projects/mobile-ffmpeg/.tmp/gas-preprocessor.pl -arch aarch64 -- clang -arch arm64 -target aarch64-ios-darwin -march=armv8-a+crc+crypto -mcpu=generic -DMOBILE_FFMPEG_ARM64 -Wno-unused-function -Wno-deprecated-declarations -fstrict-aliasing -fembed-bitcode -DIOS -DMOBILE_FFMPEG_BUILD_DATE=20200125 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS13.2.sdk -Oz -miphoneos-version-min=12.1 -I/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS13.2.sdk/usr/include' --ranlib=/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib --strip=/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/strip --enable-neon --enable-cross-compile --enable-pic --enable-asm --enable-inline-asm --enable-optimizations --enable-swscale --enable-static --disable-shared --enable-small --disable-v4l2-m2m --disable-outdev=v4l2 --disable-outdev=fbdev --disable-indev=v4l2 --disable-indev=fbdev --disable-openssl --disable-xmm-clobber-test --disable-debug --disable-neon-clobber-test --disable-programs --disable-postproc --disable-doc --disable-htmlpages --disable-manpages --disable-podpages --disable-txtpages --disable-sndio --disable-schannel --disable-securetransport --disable-xlib --disable-cuda --disable-cuvid --disable-nvenc --disable-vaapi --disable-vdpau --disable-appkit --disable-alsa --disable-cuda --disable-cuvid --disable-nvenc --disable-vaapi --disable-vdpau --enable-gmp --enable-gnutls --enable-libx264 --enable-gpl --enable-libxvid --enable-gpl --enable-libx265 --enable-gpl --enable-libvidstab --enable-gpl --disable-sdl2 --enable-zlib --enable-audiotoolbox --enable-coreimage --enable-bzlib --enable-videotoolbox --enable-avfoundation --enable-iconv
flutter:   libavutil      56. 38.100 / 56. 38.100
flutter:   libavcodec     58. 65.102 / 58. 65.102
flutter:   libavformat    58. 35.101 / 58. 35.101
flutter:   libavdevice    58.  9.103 / 58.  9.103
flutter:   libavfilter     7. 70.101 /  7. 70.101
flutter:   libswscale      5.  6.100 /  5.  6.100
flutter:   libswresample   3.  6.100 /  3.  6.100
flutter: Input #0, mp3, from '/var/mobile/Containers/Data/Application/AEEF7BB8-36F3-4ECD-824B-B294E9DF7294/Library/Caches/melodic_slow.mp3':
flutter:   Metadata:
flutter:     encoder         :
flutter: LAME 32bits version 3.99.5 (http://lame.sf.net)
flutter:
flutter:     TLEN            :
flutter: 134072
flutter:
flutter:   Duration:
flutter: 00:02:14.11
flutter: , start:
flutter: 0.025057
flutter: , bitrate:
flutter: 320 kb/s
flutter:
flutter:     Stream #0:0
flutter: : Audio: mp3, 44100 Hz, stereo, fltp, 320 kb/s
flutter:
flutter:     Metadata:
flutter:       encoder         :
flutter: LAME3.99r
flutter:
flutter: Input #1, mov,mp4,m4a,3gp,3g2,mj2, from '/var/mobile/Containers/Data/Application/AEEF7BB8-36F3-4ECD-824B-B294E9DF7294/Library/Caches/Memories_f578a1c0-f4d0-11ea-9e60-5b43394b2511.mp4':
flutter:   Metadata:
flutter:     major_brand     :
flutter: isom
flutter:
flutter:     minor_version   :
flutter: 512
flutter:
flutter:     compatible_brands:
flutter: isomiso2avc1mp41
flutter:
flutter:     encoder         :
flutter: Lavf58.35.101
flutter:
flutter:   Duration:
flutter: 00:00:03.54
flutter: , start:
flutter: 0.000000
flutter: , bitrate:
flutter: 10023 kb/s
flutter:
flutter:     Stream #1:0
flutter: (und)
flutter: : Video: h264 (avc1 / 0x31637661), yuvj422p(pc), 1920x1080 [SAR 1:1 DAR 16:9], 10020 kb/s
flutter: ,
flutter: 24 fps,
flutter: 24 tbr,
flutter: 12288 tbn,
flutter: 48 tbc
flutter:  (default)
flutter:
flutter:     Metadata:
flutter:       handler_name    :
flutter: VideoHandler
flutter:
flutter: Stream mapping:
flutter:   Stream #1:0 -> #0:0
flutter:  (h264 (native) -> h264 (libx264))
flutter:
flutter:   Stream #0:0 -> #0:1
flutter:  (mp3 (mp3float) -> aac (native))
flutter:
flutter: Press [q] to stop, [?] for help
flutter: frame=    0 fps=0.0 q=0.0 size=       0kB time=-577014:32:22.77 bitrate=  -0.0kbits/s speed=N/A
flutter: sws_param option is deprecated and ignored
flutter: using SAR=1/1
flutter: using cpu capabilities: ARMv8 NEON
flutter: profile High 4:2:2, level 4.0, 4:2:2, 8-bit
flutter: 264 - core 159 - H.264/MPEG-4 AVC codec - Copyleft 2003-2019 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=9 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=24 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
flutter: Output #0, mp4, to '/var/mobile/Containers/Data/Application/AEEF7BB8-36F3-4ECD-824B-B294E9DF7294/Library/Caches/Memories_f81f09a0-f4d0-11ea-983d-0b683ab874e3.mp4':
flutter:   Metadata:
flutter:     TLEN            :
flutter: 134072
flutter:
flutter:     encoder         :
flutter: Lavf58.35.101
flutter:
flutter:     Stream #0:0
flutter: (und)
flutter: : Video: h264 (libx264) (avc1 / 0x31637661), yuvj422p(pc, progressive), 1920x1080 [SAR 1:1 DAR 16:9], q=-1--1
flutter: ,
flutter: 24 fps,
flutter: 12288 tbn,
flutter: 24 tbc
flutter:  (default)
flutter:
flutter:     Metadata:
flutter:       handler_name    :
flutter: VideoHandler
flutter:
flutter:       encoder         :
flutter: Lavc58.65.102 libx264
flutter:
flutter:     Side data:
flutter:
flutter: cpb:
flutter: bitrate max/min/avg: 0/0/0 buffer size: 0
flutter: vbv_delay: N/A
flutter:
flutter:     Stream #0:1
flutter: : Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s
flutter:
flutter:     Metadata:
flutter:       encoder         :
flutter: Lavc58.65.102 aac
flutter:
flutter: frame=   47 fps=0.0 q=0.0 size=       0kB time=00:00:00.00 bitrate=N/A speed=   0x
flutter: frame=   61 fps= 57 q=28.0 size=     256kB time=00:00:00.23 bitrate=9033.3kbits/s speed=0.218x
flutter: frame=   74 fps= 46 q=28.0 size=     768kB time=00:00:00.78 bitrate=7969.6kbits/s speed=0.489x
flutter: frame=   85 fps= 22 q=-1.0 Lsize=    3440kB time=00:00:03.55 bitrate=7933.2kbits/s speed=0.902x
flutter: video:3380kB audio:56kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead:
flutter: 0.117084%
flutter:
flutter: frame I:1     Avg QP:22.68  size:174045
flutter: frame P:22    Avg QP:23.88  size: 84065
flutter: frame B:62    Avg QP:28.21  size: 23184
flutter: consecutive B-frames:  1.2%  4.7%  0.0% 94.1%
flutter: mb I  I16..4:  2.0% 97.3%  0.7%
flutter: mb P  I16..4:  0.4% 13.4%  0.9%  P16..4: 39.3% 21.6% 14.6%  0.0%  0.0%    skip: 9.7%
flutter: mb B  I16..4:  0.1%  2.4%  0.2%  B16..8: 26.7%  6.3%  2.0%  direct: 2.5%  skip:59.8%  L0:41.1% L1:45.7% BI:13.1%
flutter: 8x8 transform intra:91.8% inter:83.1%
flutter: coded y,uvDC,uvAC intra: 88.3% 97.2% 41.4% inter: 21.0% 26.5% 1.7%
flutter: i16 v,h,dc,p: 18% 25%  5% 52%
flutter: i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 18% 19% 16%  5%  8%  8%  9%  7%  9%
flutter: i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 18% 16% 13%  7% 12%  9% 10%  7%  8%
flutter: i8c dc,h,v,p: 41% 19% 28% 12%
flutter: Weighted P-Frames: Y:0.0% UV:0.0%
flutter: ref P L0: 53.4% 22.2% 18.9%  5.5%
flutter: ref B L0: 86.6% 10.3%  3.2%
flutter: ref B L1: 95.8%  4.2%
flutter: kb/s:7817.54
flutter: Qavg: 149.529
flutter: Speichern mit GallerySaver: /var/mobile/Containers/Data/Application/AEEF7BB8-36F3-4ECD-824B-B294E9DF7294/Library/Caches/Memories_f81f09a0-f4d0-11ea-983d-0b683ab874e3.mp4
flutter: Speichern mit GallerySaver nicht erfolgreich


  


  In general the created video works, but : If i try to save it as video with flutter gallery_saver to the device, this video will not saved. Other videos for example works well. But not the created with ffmpeg.

  


  Can you find any reason for this in the ffmpeg output log ? Thank you !

  


• FFMPEG Video to Audio Conversion Results in Different Durations

  10 juin 2020, par Eric J

  I am trying to covert an MP4 file into a mono WAV file sampled at 16,000 Hz.

  



  When I run below code, the duration goes from 00:09:59.99 (MP4) to 00:09:57.64 (WAV). Its original, longer version goes from 00:48:37.46 (MP4) to 00:48:23.38 (WAV).

  



  ffmpeg -i .mp4 -ac 1 -ar 16000 .wav


  



  I've also tried below code. The result is much worse, going from 00:09:59.99 (MP4) to 00:12:56.29 (AAC).

  



  ffmpeg -I .mp4 -vn -acodec copy .aac


  



  Attaching the log :

  



  Report written to "ffmpeg-20200610-093115.log"
Command line:
ffmpeg -i short.mp4 -ac 1 -ar 16000 short.wav -report
ffmpeg version 4.1.1 Copyright (c) 2000-2019 the FFmpeg developers
  built with Apple LLVM version 10.0.0 (clang-1000.11.45.5)
  configuration: --prefix=/usr/local/Cellar/ffmpeg/4.1.1 --enable-shared --enable-pthreads --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags='-I/Library/Java/JavaVirtualMachines/openjdk-11.0.2.jdk/Contents/Home/include -I/Library/Java/JavaVirtualMachines/openjdk-11.0.2.jdk/Contents/Home/include/darwin' --host-ldflags= --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libbluray --enable-libmp3lame --enable-libopus --enable-librubberband --enable-libsnappy --enable-libtesseract --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librtmp --enable-libspeex --enable-videotoolbox --disable-libjack --disable-indev=jack --enable-libaom --enable-libsoxr
  libavutil      56. 22.100 / 56. 22.100
  libavcodec     58. 35.100 / 58. 35.100
  libavformat    58. 20.100 / 58. 20.100
  libavdevice    58.  5.100 / 58.  5.100
  libavfilter     7. 40.101 /  7. 40.101
  libavresample   4.  0.  0 /  4.  0.  0
  libswscale      5.  3.100 /  5.  3.100
  libswresample   3.  3.100 /  3.  3.100
  libpostproc    55.  3.100 / 55.  3.100
Splitting the commandline.
Reading option '-i' ... matched as input url with argument 'short.mp4'.
Reading option '-ac' ... matched as option 'ac' (set number of audio channels) with argument '1'.
Reading option '-ar' ... matched as option 'ar' (set audio sampling rate (in Hz)) with argument '16000'.
Reading option 'short.wav' ... matched as output url.
Reading option '-report' ... matched as option 'report' (generate a report) with argument '1'.
Finished splitting the commandline.
Parsing a group of options: global .
Applying option report (generate a report) with argument 1.
Successfully parsed a group of options.
Parsing a group of options: input url short.mp4.
Successfully parsed a group of options.
Opening an input file: short.mp4.
[NULL @ 0x7f98a3008200] Opening 'short.mp4' for reading
[file @ 0x7f98a2904440] Setting default whitelist 'file,crypto'
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f98a3008200] Format mov,mp4,m4a,3gp,3g2,mj2 probed with size=2048 and score=100
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f98a3008200] ISO: File Type Major Brand: mp42
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f98a3008200] Unknown dref type 0x206c7275 size 12
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f98a3008200] Processing st: 0, edit list 0 - media time: 0, duration: 7679872
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f98a3008200] Unknown dref type 0x206c7275 size 12
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f98a3008200] Processing st: 1, edit list 0 - media time: 1024, duration: 26459559
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f98a3008200] drop a frame at curr_cts: 0 @ 0
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f98a3008200] Before avformat_find_stream_info() pos: 11213917 bytes read:318782 seeks:1 nb_streams:2
[h264 @ 0x7f98a3808800] nal_unit_type: 7(SPS), nal_ref_idc: 3
[h264 @ 0x7f98a3808800] nal_unit_type: 8(PPS), nal_ref_idc: 3
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f98a3008200] demuxer injecting skip 1024 / discard 0
[aac @ 0x7f98a1008c00] skip 1024 / discard 0 samples due to side data
[h264 @ 0x7f98a3808800] nal_unit_type: 6(SEI), nal_ref_idc: 0
[h264 @ 0x7f98a3808800] nal_unit_type: 5(IDR), nal_ref_idc: 3
[h264 @ 0x7f98a3808800] Format yuv420p chosen by get_format().
[h264 @ 0x7f98a3808800] Reinit context to 640x368, pix_fmt: yuv420p
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f98a3008200] All info found
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f98a3008200] After avformat_find_stream_info() pos: 21961 bytes read:351550 seeks:2 frames:46
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'short.mp4':
  Metadata:
    major_brand     : mp42
    minor_version   : 1
    compatible_brands: isommp41mp42
    creation_time   : 2020-06-10T16:12:17.000000Z
  Duration: 00:09:59.99, start: 0.000000, bitrate: 149 kb/s
    Stream #0:0(eng), 1, 1/12800: Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 640x360 [SAR 1:1 DAR 16:9], 47 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc (default)
    Metadata:
      creation_time   : 2020-06-10T16:12:17.000000Z
      handler_name    : Core Media Video
    Stream #0:1(eng), 45, 1/44100: Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, mono, fltp, 98 kb/s (default)
    Metadata:
      creation_time   : 2020-06-10T16:12:17.000000Z
      handler_name    : Core Media Audio
Successfully opened the file.
Parsing a group of options: output url short.wav.
Applying option ac (set number of audio channels) with argument 1.
Applying option ar (set audio sampling rate (in Hz)) with argument 16000.
Successfully parsed a group of options.
Opening an output file: short.wav.
[file @ 0x7f98a0c1db40] Setting default whitelist 'file,crypto'
Successfully opened the file.
Stream mapping:
  Stream #0:1 -> #0:0 (aac (native) -> pcm_s16le (native))
Press [q] to stop, [?] for help
cur_dts is invalid (this is harmless if it occurs once at the start per stream)
[aac @ 0x7f98a100de00] skip 1024 / discard 0 samples due to side data
cur_dts is invalid (this is harmless if it occurs once at the start per stream)
detected 12 logical cores
[graph_0_in_0_1 @ 0x7f98a0e2c4c0] Setting 'time_base' to value '1/44100'
[graph_0_in_0_1 @ 0x7f98a0e2c4c0] Setting 'sample_rate' to value '44100'
[graph_0_in_0_1 @ 0x7f98a0e2c4c0] Setting 'sample_fmt' to value 'fltp'
[graph_0_in_0_1 @ 0x7f98a0e2c4c0] Setting 'channel_layout' to value '0x4'
[graph_0_in_0_1 @ 0x7f98a0e2c4c0] tb:1/44100 samplefmt:fltp samplerate:44100 chlayout:0x4
[format_out_0_0 @ 0x7f98a0e2cb80] Setting 'sample_fmts' to value 's16'
[format_out_0_0 @ 0x7f98a0e2cb80] Setting 'sample_rates' to value '16000'
[format_out_0_0 @ 0x7f98a0e2cb80] Setting 'channel_layouts' to value '0x4'
[format_out_0_0 @ 0x7f98a0e2cb80] auto-inserting filter 'auto_resampler_0' between the filter 'Parsed_anull_0' and the filter 'format_out_0_0'
[AVFilterGraph @ 0x7f98a0c16ac0] query_formats: 4 queried, 6 merged, 3 already done, 0 delayed
[auto_resampler_0 @ 0x7f98a0e2d540] [SWR @ 0x7f98a28e1000] Using fltp internally between filters
[auto_resampler_0 @ 0x7f98a0e2d540] ch:1 chl:mono fmt:fltp r:44100Hz -> ch:1 chl:mono fmt:s16 r:16000Hz
Output #0, wav, to 'short.wav':
  Metadata:
    major_brand     : mp42
    minor_version   : 1
    compatible_brands: isommp41mp42
    ISFT            : Lavf58.20.100
    Stream #0:0(eng), 0, 1/16000: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 16000 Hz, mono, s16, 256 kb/s (default)
    Metadata:
      creation_time   : 2020-06-10T16:12:17.000000Z
      handler_name    : Core Media Audio
      encoder         : Lavc58.35.100 pcm_s16le
size=   17152kB time=00:09:16.63 bitrate= 252.4kbits/s speed=1.11e+03x    
[out_0_0 @ 0x7f98a0e2c700] EOF on sink link out_0_0:default.
No more output streams to write to, finishing.
size=   18676kB time=00:09:59.99 bitrate= 255.0kbits/s speed=1.11e+03x    
video:0kB audio:18676kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.000408%
Input file #0 (short.mp4):
  Input stream #0:0 (video): 1 packets read (3689 bytes); 
  Input stream #0:1 (audio): 25739 packets read (7375414 bytes); 25738 frames decoded (26355712 samples); 
  Total: 25740 packets (7379103 bytes) demuxed
Output file #0 (short.wav):
  Output stream #0:0 (audio): 25739 frames encoded (9562163 samples); 25739 packets muxed (19124326 bytes); 
  Total: 25739 packets (19124326 bytes) muxed
25738 frames successfully decoded, 0 decoding errors
[AVIOContext @ 0x7f98a0c1dc40] Statistics: 4 seeks, 76 writeouts
[AVIOContext @ 0x7f98a29045c0] Statistics: 10902846 bytes read, 29 seeks


  


• print list of video files containing "x" string in meatadata - Windows 10 [closed]

  30 mai 2020, par Harry Sanderson

  I have a large collection of video files which have the contents of the video listed in one of the metadata fields. for example one video might have "trees, birds, cars", another might have "birds, building, person".

  



  I'm looking for a command to print the filenames of all the videos that contain a specific string ie "birds" to a .txt file where the names would be separated by a comma so, "video1.mov, video2.mov" and so on.

  



  I know very little about this sort of problem, is it the sort of thing that can be done directly in windows cmd line, or would it require a python script ?

  



  Any help really appreciated ! :)