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• ffmpeg — copy attached cover image (cover.jpg) of video file during encode ? [closed]

  15 octobre 2024, par emk2203

  I am trying to encode a video with ffmpeg which has a cover file attached. This cover file should end up in the encoded video as well.

  


  I can do this with mkvextract attachments movie.mkv 1 && <long ffmpeg="ffmpeg" encode="encode" command="command"></long> && mkvpropedit movie_new.mkv --add-attachment cover.jpg. Both old and new show up in mediainfo with the two lines

  


  Cover                                    : Yes
Attachments                              : cover.jpg


  


  But when I try to integrate this into a ffmpeg command, ffmpeg insists on detecting a second video stream and either dropping it or encoding it as a second video stream which completely confuses the player.

  


  What I tried :
-map 0:t —> error, cannot find attachments ; -map 0:t? —> runs and encodes second video stream

  


  All kinds of -map combinations, even a merge with a separate cover.jpg and ffmpeg -i movie.mkv -i cover.jpg ... -map 1 -map 0 -c copy -disposition:0 attached_pic fails.

  


  Any ideas ?

  


• fate/cover-art : Add test for muxing cover arts to FLAC

  29 août 2021, par Andreas Rheinhardt

  fate/cover-art : Add test for muxing cover arts to FLAC
  Also covers muxing and demuxing of nonstandard FLAC channel layouts
  
  and the multi-dim-quant option of the FLAC encoder
  
  (all of which was hitherto uncovered).
  Signed-off-by : Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
  

  • [DH] tests/fate/cover-art.mak
  • [DH] tests/ref/fate/cover-art-flac-remux

• How to configure VS 2010 to make a DLL which utilizes other DLLs

  27 octobre 2014, par LawfulEvil

  My Visual Studio 2010 project target is a DLL. This particular DLL is for use with some video analytics. The DLL I am building will connect to RTSP cameras and provide video to the analytics engine. The interfaces my DLL must provide are well documented by the analytics engine.

  I have configured my VS project to have a target of a DLL. It compiles my code just fine. However, I am utilizing ffmpeg to assist with some RTSP stuff and to conversion of video frames to the format needed by the analytics engine. I have the headers for ffmpeg and can compile just fine against it. However, when my DLL goes to link, all the functions from ffmpeg are listed as unresolved external symbols.

  I have the libraries (avcodec, avutil, etc) listed as additional linker dependencies (the .lib versions obviously) and when I turn on verbose mode, I can see that it picked up the additional linker directory path I specified and found the ffmpeg files in their directory. However, it doesn’t seem to want to link them.

  If my make my project a static library instead of a DLL, everything links just fine. However, I need generate a DLL. So, how do I configure VS2010 to pull in these ffmpeg DLLs (or libs) and complete the link and generated my DLL.

  Extra Credit, is there a way to pull the DLLs in together so I only need to deploy my single DLL instead of having to install all the ffmpeg DLLs in addition to the one I wrote ?