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• How ffmpeg work on server for different type of users ? [on hold]

  7 août 2016, par sam

  I have a question about ffmpeg and I am using mac and xampp and php and jQuery. I make a function that upload video or image file or another type when I saw examples of ffmpeg in Stack Overflow. My questions are :

  1. client can be window user or mac or another than we have to download all different type of ffmpeg file for example ffmpeg.exe and mac can be another because when I saw how to download ffmpeg than they show me different operating system.

  2. And where we have to save ffmpeg file in xampp

  3. If I download all things for mac and I run it and it works and I make my website online and than any Windows user or Linux user will upload video it will work for him also. But we do not client download ffmpeg in their system

  If anybody know good example of create thumbnail for video please tell me.

• Can I direct ffmpeg to a folder to do work using SET PATH ?

  11 août 2017, par 3pointedit

  I have some "MXF-type" media (various media files in a containing folder) As long as I have cmd line set to the media folder it works but if I want to run from C : and point to the media directory using explicit SET PATH it won’t run ffmpeg. I don’t know why. What is wrong with the way I am expecting SET PATH to work ?

  C:\Users\MYNAME>SET PATH=%PATH%;"H:\2017\PeterMc\camb_LungDoctor_730_1403(1).vmf\" ffmpeg -enable_drefs 1 -use_absolute_path 0 -i camb_LungDoctor_730_1403(1).mov -map 0:v -map 0:a -write_tmcd 1 camb_LungDoctor_730_1403(1).mp4

  While the following example works you can see that cmd must be in the media folder path.

  H:\2017\Peter Mc\camb_LungDoctor_730_1403(1).vmf> ffmpeg -enable_drefs 1 -use_absolute_path 0 -i camb_LungDoctor_730_1403(1).mov -map 0:v -map 0:a -write_tmcd 1 camb_LungDoctor_730_1403(1).mp4

• FFmpeg : H.265/HEVC - does not work on Sony Smart-TV if you change encoder

  25 juillet 2019, par oigen90

  We have such Sony Bravia Smart-TV devices :

  • Sony KD-49XD7005 (2016) - Android
  • Sony KD-49XE7096 (2017) - Linux

  Those devices does have HEVC support, as well as 4K support.

  Also, we have a one minute Apple ProRes 4K video file. I need to transcode it into HEVC with some simple params, create DASH manifest and stream it into HTML5-player.
  The problem is that if I use the regular ’libx265’ codec passing it after "-c:v" - the video does not play on Sony Bravia (just freezes on ’loadstart’ player’s event). But if I use ’hevc_nvenc’ - it works ! What’s the reason of such behavior ? Both of codecs should work identically, hevc_nvenc just should be faster and was made to work on nvidia graphic cards (that’s all I know about those codecs’ difference so far). But in fact we have working stream encoded into hevc_nvenc and invalid stream encoded into libx265.

  See my FFmpeg command below.

  Which thoughts do you have ? If you want me to provide some more info - feel free to ask.

  ffmpeg -i input.mov -c:v hevc_nvenc -pix_fmt yuv420p -b:v 12000k -maxrate 14000k -bufsize 6000k -c:a copy -f mp4 output.mp4