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• avcodec/dovi_rpu : implement support for profile 10

  23 février, par Niklas Haas

  avcodec/dovi_rpu : implement support for profile 10
  Instead of the nal_prefix, this profile inside wraps the RPU inside an
  
  EMDF container, as specified in ETSI TS 102 366. However, this
  
  DV-specific EMDF container is restricted (by the specification) to
  
  a fixed set of hard-coded parameters, which we can effecitvely treat as
  
  a magic byte sequence.
  Validated and tested using official Dolby sample files, which
  
  I unfortunately cannot share. However, there are public sample files
  
  available at the merge request link below.
  Relevant links :
  
   https://www.etsi.org/deliver/etsi_ts/102300_102399/102366/01.04.01_60/ts_102366v010401p.pdf
  
   https://patentimages.storage.googleapis.com/8a/0b/da/28294acaed2182/EP3588964A1.pdf
  
   https://www.etsi.org/deliver/etsi_ts/103500_103599/103572/01.03.01_60/ts_103572v010301p.pdf
  
   https://gitlab.com/mbunkus/mkvtoolnix/-/merge_requests/2254
  

  • [DH] libavcodec/dovi_rpu.c

• command for ffmpeg encode h264 baseline profile level 1

  25 décembre 2011, par Morteza M.

  Can anyone suggest a command to encode video to h264 baseline profile ( level 1) ?

  Here is a link for reference : http://blog.mediacoderhq.com/h264-profiles-and-levels/

  I used this command but ffmpeg says it is Main profile not baseline.

  ffmpeg -i <source> -vcodec libx264 -coder 0 -flags +loop+mv4 \
  
  -partitions +parti4x4+parti8x8+parti4x4+partp8x8+partb8x8 -me_method hex -subq 7 \
  
  -trellis 1 -refs 5 -bf 0 -flags2 +mixed_refs -coder 0 -me_range 16 -threads 2 \
  
  -s 240x160 -b:v 64k -g 250 -keyint_min 25 -sc_threshold 40 -i_qfactor 0.71 \
  
  -qmin 10 -qmax 51 -qdiff 4 -strict experimental -acodec aac -ac 1 -ab 48000 \
  
  -f mpegts udp://127.0.0.1:10006?pkt_size=1316
  
  </source>

• Youtube-dll how to get a direct download link to the merged file without creating a temp file on server

  11 juillet 2019, par CeylonDomains Solutions

  Is there any way to create a direct download link to the merged file without creating a temp file on the server in youtube-dll ?

  youtube-dll -f 255+160 https://youtu.be/p-flvm1szbI 

  The above code will merge the file and output the merged file.

  I want to allow users to directly download the merged file to their computers — without creating any temp file on my server. Is this possible ?

  (Creating a temp file and then letting the user download it is already possible.)