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• lavc : Switch bitrate to 64bit unless compatibility with avconv was requested.

  15 septembre 2015, par Michael Niedermayer

  lavc : Switch bitrate to 64bit unless compatibility with avconv was requested.
  

  • [DH] doc/APIchanges
  • [DH] ffserver.c
  • [DH] libavcodec/avcodec.h
  • [DH] libavcodec/cook.c
  • [DH] libavcodec/dcaenc.c
  • [DH] libavcodec/libfdk-aacenc.c
  • [DH] libavcodec/libgsmenc.c
  • [DH] libavcodec/libopusenc.c
  • [DH] libavcodec/libspeexenc.c
  • [DH] libavcodec/mpegvideo_enc.c
  • [DH] libavcodec/options_table.h
  • [DH] libavcodec/pcm-bluray.c
  • [DH] libavcodec/pcm-dvd.c
  • [DH] libavcodec/sipr.c
  • [DH] libavcodec/utils.c
  • [DH] libavcodec/version.h
  • [DH] libavcodec/wma.c
  • [DH] libavcodec/wmaenc.c
  • [DH] libavdevice/fbdev_dec.c
  • [DH] libavformat/movenc.c
  • [DH] libavformat/rdt.c
  • [DH] libavformat/sdp.c
  • [DH] libavformat/smoothstreamingenc.c
  • [DH] libavformat/vqf.c

• Extend Frame Size and Re-Encoding Video to be Blu-Ray Compliant with ffmpeg and tsMuxer

  23 novembre 2024, par grendell

  I have a media file with the following video stream :

  


  Stream #0:0: Video: hevc (Main 10), yuv420p10le(tv, bt709), 1440x1080 [SAR 1:1 DAR 4:3], 23.98 fps, 23.98 tbr, 1k tbn (default)


  


  I am attempting to extend the frame size to 1920x1080 and re-encode the video with libx264 to create a Blu-ray compatible video stream. I am using the following command (video filter from here) :

  


  ffmpeg -i original.mkv -c:v libx264 -preset veryslow -tune animation -profile:v high -crf 16 -pix_fmt yuv420p -vf "scale=1920:1080:force_original_aspect_ratio=decrease,pad=1920:1080:(ow-iw)/2:(oh-ih)/2,setsar=1" -an h264.mkv


  


  The resulting video stream :

  


  Stream #0:0: Video: h264 (High), yuv420p(tv, bt709, progressive), 1920x1080 [SAR 1:1 DAR 16:9], 23.98 fps, 23.98 tbr, 1k tbn (default)


  


  I then copy video, audio, and subtitle streams from three separate files to create the final file :

  


  ffmpeg -i h264.mkv -i audio.mkv -i subs.mkv -map 0:v -map 1:a -map 2:s -c copy bluray.mkv


  


  I then create a Blu-ray ISO by adding each track from bluray.mkv in tsMuxer. I have enabled "Continually insert SPS/PPS" and tried both "Do not change SEI and VUI data" as well as "Always rebuild SEI and VUI data". This process succeeds without warning or error.

  


  The resulting ISO can be mounted and played in both VLC and IINA, but when it is burned to a BD25 disc and played on a PS4, the video is a mix of the original frame, what looks like multiple smaller copies of the frame with incorrect image stride, and random green blocks, all of which update around once every five seconds. All audio and subtitle tracks play without issue.

  


  How do I ensure the resulting video stream of this conversion can be played on Blu-ray players without issue ?

  


• FFMPEG : Encoding MKV to Prores, resulting in asynchronous audio

  23 juin 2015, par Simon

  I don’t know if it’s the "best" way to do it, but for being able to use Bluray material in Avid, I’m converting M2TS files to Prores quicktimes.

  I’m using Another GUI with following parameters :

  -i "<fullsourcefilename>" -y
  
  
  
  -map 0:v
  
  -map 0:a:4
  
  
  
  -vcodec prores -profile:v 3
  
  -acodec pcm_s16le -ac 2
  
  
  
  "<outputpath><outputfilename>_prores.mov"
  
  </outputfilename></outputpath></fullsourcefilename>

  This works for M2TS files, but when doing the same for MKV ones, I still get the video and audio, but the audio is not synced with the picture anymore.

  Is this a known issue, or how to fix it ?
  I would need the most efficient/fastest way (so not too complicated, because it should be clear to users what to do).
  Thank you !