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• avformat/mxfdec : SMPTE RDD 48:2018 Amd 1:2022 support

  9 juillet 2022, par Michael Niedermayer

  avformat/mxfdec : SMPTE RDD 48:2018 Amd 1:2022 support
  Reviewed-by : Tomas Härdin <tjoppen@acc.umu.se>
  
  Signed-off-by : Michael Niedermayer <michael@niedermayer.cc>
  

  • [DH] libavformat/mxf.c
  • [DH] libavformat/mxf.h
  • [DH] libavformat/mxfdec.c

• Location of the amd64 compiler in Visual Studio 2022 | Compiling FFmpeg with NVENC

  6 juin 2022, par Gal Grünfeld

  I'm trying to follow Nvidia's guide to compile FFmpeg with nvenc support on Windows and it has a stage to export the path of Visual Studio's 2013 SP2 amd64 compiler to the global path variable of the compilation dev environment :

  


  


  export PATH="/c/Program Files (x86)/Microsoft Visual Studio 12.0/VC/BIN/amd64/" :$PATH

  


  


  They say earlier in the guide that for different versions of Visual Studio different path might be required. I'm trying to use Visual Studio 2022 Community, but don't know where its amd64 compiler directory is.
I also don't know what that VC stands for ("Visual C", maybe, whatever that "Visual" might mean ?).

  


  I found in the installation directory of Visual Studio 2022 a few directories named amd64 but none of them were under one with VC or something similar in its name.
The one I think is the most likely candidate to be the updated compiler is at /MSBuild\Current\Bin\amd64.

  


  If anyone knows, please tell me if if this is the right path, and if not, what is the right path.

  


  Microsoft does offer a version of Visual Studio 2013 Update 2, though (I assume they changed their naming scheme from "service packs" to "updates, which would make it the same software), but it doesn't offer a 64-bit version of it, and I want to compile a 64-bit software - so I assume it doesn't come with one. Please do correct me if I'm wrong, it'd save me needing to use a version of Visual Studio that is different than the one in the guide.

  


• ffmpeg - error processing files generated by premier pro 2022

  23 mai 2022, par QRrabbit

  Please help with the error, trying to re-encode the source file produced with prores 4444+alpha. Alpha channel is required in my case.

  


  I've tried two separate options, both are erroring out :

  


  $ ffmpeg -i Input.mxf -vcodec prores_ks -profile:v 4 -y Output.mxf 


  


  I'm getting this output

  


  ffmpeg version 4.4 Copyright (c) 2000-2021 the FFmpeg developers
  built with Apple clang version 12.0.5 (clang-1205.0.22.9)
  configuration: --prefix=/usr/local/Cellar/ffmpeg/4.4_2 --enable-shared --enable-pthreads --enable-version3 --cc=clang --host-cflags= --host-ldflags= --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libbluray --enable-libdav1d --enable-libmp3lame --enable-libopus --enable-librav1e --enable-librubberband --enable-libsnappy --enable-libsrt --enable-libtesseract --enable-libtheora --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libspeex --enable-libsoxr --enable-libzmq --enable-libzimg --disable-libjack --disable-indev=jack --enable-avresample --enable-videotoolbox
  libavutil      56. 70.100 / 56. 70.100
  libavcodec     58.134.100 / 58.134.100
  libavformat    58. 76.100 / 58. 76.100
  libavdevice    58. 13.100 / 58. 13.100
  libavfilter     7.110.100 /  7.110.100
  libavresample   4.  0.  0 /  4.  0.  0
  libswscale      5.  9.100 /  5.  9.100
  libswresample   3.  9.100 /  3.  9.100
  libpostproc    55.  9.100 / 55.  9.100
Input #0, mxf, from 'Input.mxf':
  Metadata:
    operational_pattern_ul: 060e2b34.04010101.0d010201.01010100
    uid             : b52947e8-d982-11ec-9a2d-b42e99ab5f4d
    generation_uid  : b52947e9-d982-11ec-a612-b42e99ab5f4d
    company_name    : Adobe Inc.
    product_name    : Premiere Pro
    product_version_num: 2.0.0.0.1
    product_version : 22.4.0
    application_platform: Mac OS X
    product_uid     : 0c3919fe-46e8-11e5-a151-feff819cdc9f
    toolkit_version_num: 5.3.6.0.1
    modification_date: 2022-05-22T03:53:15.000000Z
    material_package_umid: 0x060A2B340101010501010D1113000000F88BD5002197058861C9B42E99AB5F4D
    timecode        : 00:00:00;00
  Duration: 00:00:59.66, start: 0.000000, bitrate: 32803 kb/s
  Stream #0:0: Video: prores (4444) (ap4h / 0x68347061), yuva444p12le(tv, bt709, progressive), 1920x1080, SAR 1:1 DAR 16:9, 29.97 tbr, 29.97 tbn, 29.97 tbc
    Metadata:
      file_package_umid: 0x060A2B34010101050101051213D028BEF88BD500219705880089B42E99AB5F4D
      file_package_name: Source Package
      track_name      : Track 1
Stream mapping:
  Stream #0:0 -> #0:0 (prores (native) -> prores (prores_ks))
Press [q] to stop, [?] for help
Output #0, mxf, to 'Output.mxf':
  Metadata:
    operational_pattern_ul: 060e2b34.04010101.0d010201.01010100
    uid             : b52947e8-d982-11ec-9a2d-b42e99ab5f4d
    generation_uid  : b52947e9-d982-11ec-a612-b42e99ab5f4d
    timecode        : 00:00:00;00
    material_package_umid: 0x060A2B340101010501010D1113000000F88BD5002197058861C9B42E99AB5F4D
    product_version_num: 2.0.0.0.1
    modification_date: 2022-05-22T03:53:15.000000Z
    application_platform: Mac OS X
    product_uid     : 0c3919fe-46e8-11e5-a151-feff819cdc9f
    toolkit_version_num: 5.3.6.0.1
    encoder         : Lavf58.76.100
  Stream #0:0: Video: prores (ap4h / 0x68347061), yuva444p10le(tv, bt709, progressive), 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 200 kb/s, 29.97 fps, 29.97 tbn
    Metadata:
      file_package_umid: 0x060A2B34010101050101051213D028BEF88BD500219705880089B42E99AB5F4D
      file_package_name: Source Package
      track_name      : Track 1
      encoder         : Lavc58.134.100 prores_ks
[mxf @ 0x7fbbbc008200] could not get prores profile0:00.00 bitrate=N/A speed=   0x    
av_interleaved_write_frame(): Operation not permitted
Error writing trailer of Output.mxf: Unknown error occurred
frame=   33 fps= 27 q=-0.0 Lsize=       0kB time=00:00:00.03 bitrate=   0.0kbits/s speed=0.027x    
video:67kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
Conversion failed!


  


  Above I can't even fully see the error since the red text over black background covers the screen :


  


  I have also tried the following encoding options :

  


   -c:v qtrle -pix_fmt argb 


  


  to which, I'm getting the following error :

  


  track 0: could not find essence container ul, codec not currently supported in container
Could not write header for output file #0 (incorrect codec parameters ?): Operation not permitted
Error initializing output stream 0:0 --
Conversion failed!


  


  In case this is helpful, I'm displaying MediaInfo for the source file :