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• fate/cbs : Add an SEI test

  8 mai 2018, par Mark Thompson

  fate/cbs : Add an SEI test
  The artificial sample file sei-1.h264 contains five frames (IDR P B I B)
  
  and the following SEI message types :
  
  * Buffering period
  
  * Picture timing
  
  * Pan-scan rectangle (display as 4:3)
  
  * User data registered, containing A/53 closed captions (captions match
  
    frame content, including reordering)
  
  * Recovery point (at the I frame)
  
  * Display orientation (identity transformation)
  
  * Mastering display (with arbitrary contents)
  
  * Undefined SEI type 1234 (containing ascending bytes)
  

  • [DH] tests/fate/cbs.mak
  • [DH] tests/ref/fate/cbs-h264-sei-1

• Changing mkv to mp4 with a batch script

  1er février 2021, par Hetsig

  What I want the .bat to do is to "scan" the files, in this case, .mkv, looking for streams (if there's more than a video stream and an audio stream you might need a matroska file). If you have an audio stream and a video stream, let's change the files as there's no reason to use matroska.

  


  Currently I have 10 seasons of a TV show, which I personally ripped from my own DVDs, and they are in .mkv format. But inside the .mkv there's only video and audio, the subtitles are separate.

  


  The only reason I want to change .mkv to .mp4 is that plex can't use .mkv.

  


  The current code I have to remove metadata on all .XXX in the folder :

  


  if not exist "%~dp1_temp" (
    goto foldercreate
    )
    else (
    goto continue
    )

:foldercreate
echo.
echo Created temp folder.
echo -
mkdir _temp
attrib _temp +h
set errorlevel=
:continue
for %%f in (*%~x1) do (
    title Fixing %%f...
    move "%%f" _temp >nul
    echo Currently fixing %%f...
    ffmpeg -xerror -hide_banner -i "%~dp1_temp\%%f" -map_metadata -1 -codec copy -map 0 "%~dp1%%f" -loglevel warning -stats
    if %errorlevel% neq 0 (
        pause
        )
    del "%~dp1_temp\%%f"
    echo -
    )
if %errorlevel% neq 0 (
    echo FFmpeg errored...
    pause
    )
echo All done! removing temp dir...
rmdir _temp /S /Q
timeout /t 2 /nobreak>nul


:eof


  


• Remove framerate/duration metadata from h264 with ffmpeg

  5 mai 2020, par aron

  I need a H264 encoded video without framerate and duration metadata as these are stored and calculated externally.

  



  This is what I use :

  



  ffmpeg -r 30 -f image2 -i xyz -c:v libx264 -f h264 1579516080101.h264


  



  This is what mediainfo returns :

  



  General
Complete name                            : 1579516080101.h264
Format                                   : AVC
Format/Info                              : Advanced Video Codec
File size                                : 866 KiB
Duration                                 : 1 s 0 ms
Overall bit rate                         : 7 096 kb/s

Video
Format                                   : AVC
Format/Info                              : Advanced Video Codec
Format profile                           : High@L4
Format settings                          : CABAC / 4 Ref Frames
Format settings, CABAC                   : Yes
Format settings, Reference frames        : 4 frames
Duration                                 : 1 s 0 ms
Bit rate                                 : 7 096 kb/s
Width                                    : 1 920 pixels
Height                                   : 1 080 pixels
Display aspect ratio                     : 16:9
Frame rate mode                          : Variable
Frame rate                               : 30.000 FPS
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Scan type                                : Progressive
Bits/(Pixel*Frame)                       : 0.114
Stream size                              : 866 KiB (100%)


  



  How can I get rid of these entries ? I have tried -map_metadata -1 and setting no framerate, but that just resulted in using a default framrerate of 25.

  



  Thanks