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• Recursively Convert FLAC to MP3 Keeping All Metadata and Located in Same Directory

  6 juin 2020, par charlesstricklin

  I've got ffpeg installed on my Windows 10 PC and I'd like to recursively convert .flac music into .mp3 within the same directory (by that I mean the .flac file and the .mpg file end up in the same folder) and I'll be the first to admit I'm just a beginner to both ffmpeg and the CLI, so I'm a newbie there.

  



  I've been looking at Recursively Converting FLAC to MP3 Using FFmpeg While Maintaining Metadata and Directory Structure on Windows as a possible answer to my question, but I do not want to copy from one volume to another.

  



  Just to avoid confusion, my highest directory is C :\Users\User\Downloads\Music\ and I'd like to convert several artist/band's tracks from .flac to .mp3 within the same directory. C :\Users\User\Downloads\Music\1st Artist\1st CD\1st Track.flac would be converted to C :\Users\User\Downloads\Music\1st Artist\1st CD\1st Track.mp3, C :\Users\User\Downloads\Music\2nd Artist\1st CD\1st Track.flac would be converted to C :\Users\User\Downloads\Music\2nd Artist\1st CD\1st Track.mp3 and so on.

  



  Would someone clue me in on the best way you know of to accomplish that from the CLI, please ?

  


• Remove unnecessary use of avcodec_close().

  27 mai 2020, par Anton Khirnov

  Remove unnecessary use of avcodec_close().
  Replace it with avcodec_free_context() or drop it completely as
  
  appropriate.
  

  • [DH] libavcodec/avrndec.c
  • [DH] libavcodec/smvjpegdec.c
  • [DH] libavcodec/tests/options.c
  • [DH] libavfilter/vf_subtitles.c
  • [DH] libavfilter/vf_uspp.c
  • [DH] tests/api/api-band-test.c
  • [DH] tests/api/api-flac-test.c
  • [DH] tests/api/api-h264-test.c
  • [DH] tests/api/api-seek-test.c

• Live video feed from ffmpeg to html with minimum latency

  11 juin 2020, par XPModder

  I am currently working on a project that requires me to get live video from a raspberry pi camera and stream it to a html page. At the moment I am using ffmpeg to create *.m3u8 and *.ts files and stream the video that way. In the html page I have hls.js running that receives the video and displays it through a video tag. This does work pretty good, but the latenca is a problem... The video in the browser is always between a few seconds and multiple minutes late. This is not really acceptable.

  



  I am currently using the following command to run ffmpeg :

  



  ffmpeg -loglevel quiet -y -i - -c:v copy -preset veryfast -hls_wrap 2 -hls_time 1 -g 1 stream.m3u8

  



  I have also tried other values for -hls_time and -g including values between 0 and 1.

  



  I am now searching for an alternative solution, that does not have this problem, or a way to reduce the latency to at least 2 seconds max. The video itself is transferred in to ffmpeg as h264. The html webpage is hosted on the same raspberry pi using apache2.

  



  Is there a way to accomplish that without installing a seperate streaming server on the pi ?

  



  Also this all has to work without a internet connection. Meaning the pi and the smartphone/computer that is viewing the html page are on the same wifi, but that wifi does not always have a connection to the internet and does not need to have one.

  



  So basically I want to have h264 video into ffmpeg and then somehow into html tag. The stream should also be accessable in another way, as I have a button on the page that should start and stop the recording of the stream to an mp4 file. This recording is also done using ffmpeg at the moment.

  



  I am asking this here and not on the raspberry pi stackexchange forum, because it is a general problem and the problem itself does not have anythingto do with the raspberry pi.