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• Generated ffmpeg video seems to be not a real video file

  18 septembre 2020, par asored

  I try to create a video with ffmpeg and save it to the device with gallery_saver package for Flutter.

  


  The ffmpeg command works well and the video is created. But GallerySaver does not save it. As result I get no error, but a false boolean for the success argument.

  


  This is the ffmpeg output. Is this a valid video mp4 file ?

  


  Restarted application in 683ms.
[38;5;244m[Easy Localization] [39;49mStart
[38;5;244m[Easy Localization] [39;49mInit state
[38;5;244m[Easy Localization] [39;49mBuild
[38;5;244m[Easy Localization] [39;49mDevice locale de_DE
[38;5;244m[Easy Localization] [39;49mLoad asset from assets/translations
[38;5;244m[Easy Localization] [39;49mInit Localization Delegate
[38;5;244m[Easy Localization] [39;49mInit provider
[38;5;244m[Easy Localization] [39;49mLoad Localization Delegate
flutter: Loading flutter-ffmpeg.
flutter: Loaded flutter-ffmpeg-ios-arm64.
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/2F90BA97-59E6-4632-B86A-2B0C1C552273/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/2F90BA97-59E6-4632-B86A-2B0C1C552273/Library/Caches/Memories-8c4a9c20-f9b8-11ea-b262-853cab0c1dfa.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf58.35.101
  Duration: 00:00:00.17, start: 0.000000, bitrate: 55269 kb/s
    Stream #1:0(und): Video: h264 (avc1 / 0x31637661), yuv420p, 4032x3024 [SAR 1:1 DAR 4:3], 55338 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, level 6.0, 4:2:0, 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/2F90BA97-59E6-4632-B86A-2B0C1C552273/Library/Caches/Memories-8da54a20-f9b8-11ea-b216-7df10c3fe45b.mp4':
  Metadata:
    TLEN            : 134072
    encoder         : Lavf58.35.101
    Stream #0:0(und): Video: h264 (libx264) (avc1 / 0x31637661), yuv420p(progressive), 4032x3024 [SAR 1:1 DAR 4:3], 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=    4 fps=2.5 q=-1.0 Lsize=    1028kB time=00:00:00.18 bitrate=45323.6kbits/s speed=0.115x
video:1023kB audio:3kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.143686%
frame I:1     Avg QP:24.74  size:488633
frame P:3     Avg QP:23.50  size:186193
mb I  I16..4:  3.0% 90.0%  7.1%
mb P  I16..4: 28.7% 67.4%  3.8%  P16..4:  0.2%  0.0%  0.0%  0.0%  0.0%    skip: 0.0%
8x8 transform intra:73.1% inter:60.0%
coded y,uvDC,uvAC intra: 41.8% 29.7% 8.7% inter: 3.7% 1.7% 0.3%
i16 v,h,dc,p: 53% 33%  3% 11%
i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 30% 22% 22%  4%  4%  3%  7%  4%  5%
i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 28% 30% 12%  4%  5%  4%  8%  4%  5%
i8c dc,h,v,p: 70% 18%  9%  3%
Weighted P-Frames: Y:33.3% UV:33.3%
ref P L0:  1.4%  0.0% 95.5%  0.0%  3.1%
kb/s:50266.18
Qavg: 134.735
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/2F90BA97-59E6-4632-B86A-2B0C1C552273/Library/Caches/img%04d.jpg':
flutter:   Duration:
flutter: 00:00:00.20
flutter: , start:
flutter: 0.000000
flutter: , bitrate:
flutter: N/A
flutter:
flutter:     Stream #0:0
flutter: : Video: mjpeg, yuvj444p(pc, bt470bg/unknown/unknown), 4032x3024 [SAR 72:72 DAR 4:3]
flutter: ,
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: deprecated pixel format used, make sure you did set range correctly
flutter: using SAR=1/1
flutter: using cpu capabilities: ARMv8 NEON
flutter: profile High, level 6.0, 4:2:0, 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/2F90BA97-59E6-4632-B86A-2B0C1C552273/Library/Caches/Memories-f2ae4f70-f9b8-11ea-bb69-c999fb23197b.mp4':
flutter:   Metadata:
flutter:     encoder         :
flutter: Lavf58.35.101
flutter:
flutter:     Stream #0:0
flutter: : Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 4032x3024 [SAR 1:1 DAR 4:3], 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=   0x
flutter: sws_param option is deprecated and ignored
flutter: deprecated pixel format used, make sure you did set range correctly
flutter: sws_param option is deprecated and ignored
flutter: deprecated pixel format used, make sure you did set range correctly
flutter: frame=    4 fps=0.0 q=0.0 size=       0kB time=00:00:00.00 bitrate=N/A speed=   0x
flutter: frame=    5 fps=1.8 q=-1.0 Lsize=    1485kB time=00:00:00.08 bitrate=145828.4kbits/s speed=0.0305x
flutter: video:1484kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead:
flutter: 0.059291%
flutter:
flutter: frame I:1     Avg QP:24.93  size:366082
flutter: frame P:4     Avg QP:24.17  size:288219
flutter: mb I  I16..4:  8.6% 81.4% 10.1%
flutter: mb P  I16..4: 21.7% 71.4%  6.6%  P16..4:  0.2%  0.0%  0.0%  0.0%  0.0%    skip: 0.0%
flutter: 8x8 transform intra:73.6% inter:79.9%
flutter: coded y,uvDC,uvAC intra: 48.6% 33.8% 12.6% inter: 33.4% 41.4% 0.0%
flutter: i16 v,h,dc,p: 53% 31%  4% 12%
flutter: i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 29% 18% 24%  5%  4%  4%  6%  5%  5%
flutter: i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 28% 23% 14%  7%  6%  5%  7%  5%  5%
flutter: i8c dc,h,v,p: 67% 17% 12%  4%
flutter: Weighted P-Frames: Y:25.0% UV:25.0%
flutter: ref P L0: 43.6%  0.2% 55.0%  0.0%  1.1%
flutter: kb/s:58327.98
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/2F90BA97-59E6-4632-B86A-2B0C1C552273/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/2F90BA97-59E6-4632-B86A-2B0C1C552273/Library/Caches/Memories-f2ae4f70-f9b8-11ea-bb69-c999fb23197b.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: 00:00:00.21
flutter: , start:
flutter: 0.000000
flutter: , bitrate:
flutter: 58202 kb/s
flutter:
flutter:     Stream #1:0
flutter: (und)
flutter: : Video: h264 (avc1 / 0x31637661), yuv420p, 4032x3024 [SAR 1:1 DAR 4:3], 58353 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, level 6.0, 4:2:0, 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/2F90BA97-59E6-4632-B86A-2B0C1C552273/Library/Caches/Memories-f475c900-f9b8-11ea-9b26-639f1e3575c9.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), yuv420p(progressive), 4032x3024 [SAR 1:1 DAR 4:3], 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=    5 fps=2.4 q=-1.0 Lsize=    1328kB time=00:00:00.20 bitrate=52040.4kbits/s speed= 0.1x
flutter: video:1323kB audio:3kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead:
flutter: 0.112379%
flutter:
flutter: frame I:1     Avg QP:23.27  size:307048
flutter: frame P:4     Avg QP:23.71  size:261707
flutter: mb I  I16..4: 12.0% 84.4%  3.6%
flutter: mb P  I16..4: 21.8% 73.5%  4.6%  P16..4:  0.2%  0.0%  0.0%  0.0%  0.0%    skip: 0.0%
flutter: 8x8 transform intra:75.8% inter:82.6%
flutter: coded y,uvDC,uvAC intra: 43.8% 33.2% 11.5% inter: 18.9% 20.3% 0.2%
flutter: i16 v,h,dc,p: 52% 33%  4% 11%
flutter: i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 31% 20% 24%  4%  4%  3%  6%  4%  5%
flutter: i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 31% 28% 12%  4%  5%  4%  7%  5%  5%
flutter: i8c dc,h,v,p: 67% 18% 12%  4%
flutter: Weighted P-Frames: Y:25.0% UV:25.0%
flutter: ref P L0: 24.0%  0.4% 73.9%  0.0%  1.8%
flutter: kb/s:51988.88
flutter: Qavg: 137.086
flutter: /var/mobile/Containers/Data/Application/2F90BA97-59E6-4632-B86A-2B0C1C552273/Library/Caches/Memories-f475c900-f9b8-11ea-9b26-639f1e3575c9.mp4
flutter: Success argument is: false


  


  This are my ffmpeg commands :

  


  First I create a video from images in a folder

  


  -r $settingsFps -i $tempPath/img%04d.jpg -vcodec libx264 -y -an -vf "pad=ceil(iw/2)*2:ceil(ih/2)*2" -pix_fmt yuv420p $tempPath/$videoFileName.mp4

  


  Than I add audio to the video

  


  -i ${finalSong.path} -i $videoPath -shortest $tempPath/$newVideoFileName.mp4

  


• Best intra-frame codec for editing ? Having color issues with DNxHR and serious sync issues with Prores

  23 janvier 2020, par Raulo1985

  I have a couple of questions regarding intra-frame codecs for editing purposes (in Premiere Pro).

  A LITTLE CONTEXT :

  I ripped a HDR movie to a MP4 container some months ago, using H.264 as codec (high 10, level 5, UHD, YUV, subsampling 4:2:0). The video looks great, as it should. Now I want to edit a trailer for that movie (I edit in Adobe Premiere Pro, current version), and for fast playback I need to work with proxies or transcode the source file to an intra-frame non long GOP file and use it as the source file (hopefully as lossless as that transcoding step can be). I tried for several days to transcode the source file to DNxHR 444 10 bits (using FFmpeg and then Adobe Media Encoder), but the result was always a video with the colors messed up (sometimes very washed out, sometimes over saturated).

  FFprobe of the resulting DNxHR file said that the color space was BT709 (source file is obviously BT2020), and I don’t know why. The transcoding involved upsampling since the source file is 4:2:0 and DNxHR doesn’t support it, but I tried upsampling to 4:4:4 and also to 4:2:2, and both of those files looked exactly the same to me, and very different from the original footage (so, I don’t think upsampling is the cause of the color issue, but maybe the apparent color space change or something wrong with the metadata). The results were the same when transcoding with Adobe Media Encoder. Anyway, I seem to have given up transcoding to DNxHR and use it as the source file, unless someone has an idea of what’s causing this problem. I could have worked with the source file for exporting and DNxHR LB for proxies, but there were sync issues (between source file and proxy) that defeated all purposes while editing. Prores is out of the picture, sync issues were worse (several seconds of delay).

  For the record, the command used that didn’t work as expected (color wise) is :

  ffmpeg -channel_layout 63 -i input.mkv -map 0:0 -c:v dnxhd -vf "scale=in_range=limited:out_range=full" -color_range 2 -profile:v dnxhr_444 -pix_fmt yuv444p10le -acodec pcm_s24le -ar 48000 -ac 6 -channel_layout 63 -map 0:2 -hide_banner output.mxf

  I also tried without the commands "scale=in_range=limited:out_range=full" and "-color_range 2", with same results. Always used FFmpeg latest version, and I’m working in Windows 10 Pro, latest drivers and latest Klite codec pack. Video files were compared with Mediainfo, FFprobe, and visually with VLC.

  Well, like I said, I’m giving up using DNxHR as the source file for my project (it would have been ideal since it doesn’t have sync issues with the DNxHR proxies, and file size is not a problem for me). A user here at the forums suggested transcoding and use H.264 intra-frame as source file, which I didn’t know was an option (I didn’t know H.264 was capable of intra-frame, my bad). I’m aware that one should avoid unnecesary transcoding steps, but I can’t work with a H.264 UHD HDR source file (ultra slow playback), and the sync issues with proxies, no matter the codec, make it impossible to make accurate cuts.
  So, bottom line, I need to find a way to fix the color issue when transcoding to DNxHR, or try with an inter-frame codec that’s not DNxHR and that’s capable of preserving all the HDR info (and then see if it doesn’t have sync issues. I’m assuming that those may dissapear when using intra-frame for both source file and proxies).

  NOTE : When importing the DNxHR 444 file to Premiere Pro and looking at the Lumetri scopes tab, you can tell that the colors are clipped at 100 nits, like a regular SDR video. So apparently the color space was really reduced to BT709, and I don’t know why. The H.264 source file behaves as expected, with colors going past 100 nits.

  MY QUESTIONS :

  1) Is H.264 intra-frame a good format for editing with a good playback performance ?

  2) If H.264 intra-frame is a good option, what would be the advantages of the DNxHR codec (or Prores) over it for editing purposes ? Everybody suggests DNxHD/DNxHR or Prores as intermediate codecs, but if intra-frame H.264 has the same advantages for editing and supports HDR, what would be the reason to choose another codec like DNxHR ?

  3) Any ideas on what could be the cause of the colors not transcoding correctly from the H.264 source file to the DNxHR 444 10 bits one ? The command looks ok to me, but FFprobe output says the DNxHR video is BT709, while with the source file it says BT2020. Like I said, apparently there’s something wrong with the transcoding process regarding metadata or color space.

  4) I haven’t tried to transcode the source file to a DNxHR 444 10 bits video file, but in a MOV container. I don’t know how this works internally, but maybe the color issue has something to do with the container metadata or something. I may try this if there’s not another suggestion (transcoding this kind of files, as you know, takes time, so I’ll wait for some ideas first).

  NOTE : I tried to transcode the source file in the same way (DNxHR 444, 10 bits, etc) with Adobe Media Encoder 2020 and the result was the same, with colors messed up and FFprobe saying the video is BT709. Also tried transcoding to DNxHR HQX profile (10 bits), same result.

  Any help would be greatly appreciated.

  Thanks in advance.

• avformat/mxfenc : Write Mastering Display Colour Volume to MXF

  9 septembre 2020, par Harry Mallon

  avformat/mxfenc : Write Mastering Display Colour Volume to MXF
  Described in Annex B SMPTE ST 2067-21:2020
  Signed-off-by : Harry Mallon <harry.mallon@codex.online>
  

  • [DH] libavformat/mxfenc.c