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• avcodec/hevc_sei : replace en dash character with a hyphen

  6 décembre 2020, par James Almer

  avcodec/hevc_sei : replace en dash character with a hyphen
  Signed-off-by : James Almer <jamrial@gmail.com>
  

  • [DH] libavcodec/hevc_sei.c

• ffmpeg is not able to parse DASH-IF manifest

  9 décembre 2020, par Abhi Bhalgami

  I tried manifest from local tv channel provider. It's live stream but somehow ffmpeg is not able to parse the manifest.

  


  Command :

  


  ffmpeg -i "https://delta9tatasky.akamaized.net/out/i/2057298.mpd" -c copy -f mp4 /tmp/out.mp4


  


  It's encrypted with widevine DRM. But that's not important. ffmpeg is complaining about input data.

  


  Error :

  


  [dash @ 0x55d605e25100] Unable to read to manifest 'https://delta9tatasky.akamaized.net/out/i/2057298.mpd'
https://delta9tatasky.akamaized.net/out/i/2057298.mpd: Invalid data found when processing input


  


• FFMPEG || NGINX RTMP server not naming MPEG DASH chunks

  12 avril 2020, par Mathew Knight

  Feel like i'm smashing my head against a brick wall here, i've been tryin to figure thisout for so long....

  



  Basically i'm trying to send an RTMP stream to my NGINX server running on Ubuntu 18.04, then transcode it to a custom MPEG DASH stream that muxes the stream into 2 streams for audio and video.

  



  as i need to have the chunks in the same destination folder i need to rename them.

  



  when i try the following FFMPEG script it just keeps giving me chunks named for example :

  



  chunk-stream-audio-%05d.webm

  



  the %05d should be the chunk number running consecutively.

  



  Running a similar script on my Macbook the chunks generate correctly... is this an error of have i done something wrong here ?

  



  Here's my FFMPEG script

  



  exec_push ffmpeg -re -an -i 'rtmp://localhost:1935/live/stream' -map 0:v:0 -c:v libvpx-vp9 -s 1920x1080 -bufsize 15000k -b:v 15000k -keyint_min 150 -g 150 -tile-columns 4 -frame-parallel 1 -an -f dash -init_seg_name 'init-stream$RepresentationID$_video.webm' -chunk_start_index 1 -media_seg_name 'chunk-stream$RepresentationID$-video-$Number$.webm' '/home/mathewknight/Desktop/test/video.mpd' -map 0:a:0 -c:a libopus -mapping_family 255 -b:a 1024k -vn -f dash -init_seg_name 'init-stream$RepresentationID$_audio.webm' -chunk_start_index 1 -media_seg_name 'chunk-stream$RepresentationID$-audio-$Number%05d$.webm' '/home/mathewknight/Desktop/test/audio.mpd'  2>>/var/log/nginx/ffmpeg.log;