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• how to stream an IP webcam (h264) to youtube live rtmp using avconv or ffmpeg ?

  20 juin 2015, par Baba

  I have an IP webcam HiSilicon Hi3516C that I can successfully access from a raspberry pi. I can get still images by using a command like this :

  avconv -i "rtsp://192.168.1.10:554" myfile.jpg

  now instead of still images I would like to stream the video to youtube live. I have configured an event in my youtube live account and gotten a stream name and a rtmp url.

  My youtube ingestion settings are :
  custom ingestion : bitrate 400kbps - 1000 kbps (360p)
  encoder : Other encoder

  my webcam specs says :
  Webcam : HiSilicon Hi3516C
  Video Encoding
   H.264 baseline profile
   H.264 main profile Level 4.0
   MJPEG/JPEG baseline
  Video Encoding Performance
   At most 2-megapixel resolution for H.264 encoding
   Real-time H.264&JPEG encoding of multiple types of
  streams : 1080p@30 fps+VGA@30 fps + JPEG snapshot
  1080p@1 fps
   Supports constant bit rate (CBR) mode and variable bit
  rate (VBR) mode.
   Supports the output bit rate ranging from 32 Kbit/s to 40
  Mbit/s.
   Encoding frame rate, ranging from 1/16 frame/s to 30
  frame/s
   Eight ROIs
   OSD overlay of eight regions before encoding

  I am not sure what command line to issue in order to properly encode and send my stream to my you tube event. So far I have tried :

  avconv  -i rtsp://192.168.1.10:554 -r 20 -b 750 -f flv rtmp://a.rtmp.youtube.com/live2

  (note that I haven’t used the stream name provided by youtube since I do not know where to specify it) this returns the following :

  [h264 @ 0x1fb0380] RTP : missed 273 packets
  [h264 @ 0x1fb0380] RTP : missed 191 packets
  [h264 @ 0x1fb0380] RTP : missed 225 packets
  [h264 @ 0x1fb0380] RTP : missed 332 packets
  [h264 @ 0x1fb0380] RTP : missed 349 packets
  [h264 @ 0x1fb0380] RTP : missed 339 packets
  [rtsp @ 0x1fac640] max_analyze_duration reached
  [rtsp @ 0x1fac640] Estimating duration from bitrate, this may be inaccurate
  Guessed Channel Layout for Input Stream #0.1 : mono
  Input #0, rtsp, from ’rtsp ://192.168.1.10:554’ :
  Metadata :
  title :
  comment : minisdp
  Duration : N/A, start : 0.040000, bitrate : N/A
  Stream #0.0 : Video : h264 (Main), yuv420p, 1920x1080, 2.23 fps, 90k tbn
  Stream #0.1 : Audio : [0][0][0][0] / 0x0000, 8000 Hz, mono
  RTMP_ReadPacket, failed to read RTMP packet header
  rtmp ://a.rtmp.youtube.com/live2 : Unknown error occurred

  I have also tried

   avconv -f h264  -i rtsp://192.168.1.10:554 -r 20 -b 750 -f flv rtmp://a.rtmp.youtube.com/live2

  which gives : rtsp ://192.168.1.10:554 : Protocol not found

  and

  avconv -rtsp_transport tcp   -i rtsp://192.168.1.10:554 -r 20 -b 750 -f flv rtmp://a.rtmp.youtube.com/live2p

  which gives :
  [rtsp @ 0xf8680] max_analyze_duration reached
  [rtsp @ 0xf8680] Estimating duration from bitrate, this may be inaccurate
  Guessed Channel Layout for Input Stream #0.1 : mono
  Input #0, rtsp, from ’rtsp ://192.168.1.10:554’ :
  Metadata :
  title :
  comment : minisdp
  Duration : N/A, start : 0.040000, bitrate : N/A
  Stream #0.0 : Video : h264 (Main), yuv420p, 1920x1080, 25 fps, 1k tbr, 90k tbn
  Stream #0.1 : Audio : [0][0][0][0] / 0x0000, 8000 Hz, mono
  RTMP_ReadPacket, failed to read RTMP packet header
  rtmp ://a.rtmp.youtube.com/live2p : Unknown error occurred

  Any hint, suggestions ?
  I know very little about, video formats, codecs and streaming in general so any help is welcome. I would not mind using ffmpeg instead if anyone knows what command to issue.

• Writing metadata (Artist Name, Song Title, Year, Album, Duration, Genre) to mp3/m4a audio file using youtube-dl (subsequent AtomicParsely error)

  10 décembre 2016, par IRNotSmart

  I am extracting audio only from youtube videos using youtube-dl. I would like to write the metadata (i.e. Artist Name and Song Title, Year, Album, Duration, Genre) into the mp3/m4a file after downloading. My attempt to accomplish this starts with this code :

  @echo off
  
  youtube-dl --format m4a/mp3 --youtube-skip-dash-manifest --embed-thumbnail -o "%%(title)s.%%(ext)s" --metadata-from-title "%%(artist)s - %%(title)s" --add-metadata 2Y6Nne8RvaA
  
  pause

  This code produces the following output :

  [youtube] 2Y6Nne8RvaA: Downloading webpage
  
  [youtube] 2Y6Nne8RvaA: Extracting video information
  
  [youtube] 2Y6Nne8RvaA: Downloading thumbnail ...
  
  [youtube] 2Y6Nne8RvaA: Writing thumbnail to: Kungs vs Cookin' on 3 Burners - Thi
  
  s Girl.jpg
  
  [download] Destination: Kungs vs Cookin' on 3 Burners - This Girl.m4a
  
  [download] 100% of 2.99MiB in 00:01
  
  [ffmpeg] Correcting container in "Kungs vs Cookin' on 3 Burners - This Girl.m4a"
  
  
  
  [fromtitle] parsed title: This Girl
  
  [fromtitle] parsed artist: Kungs vs Cookin' on 3 Burners
  
  [ffmpeg] Adding metadata to 'Kungs vs Cookin' on 3 Burners - This Girl.m4a'
  
  ERROR: AtomicParsley was not found. Please install.
  
  Press any key to continue . . .

  As you can see, I am able to successfully able to add a few of the tags from the video, but not all of them and the Year is royally screwed up.
  

  What is this AtomicParsely error and how do I remedy it ? Do I need this program to correctly add all the Metadata to the file that I want, or can this be accomplished in another way ?

  Referencing Steven Penny’s post, FFmpeg metadata not showing in Windows ?, is solving this problem as simple as using an ffmpeg command ?

  When I do a google search for this song, the first link that shows is the exact link I’m using on YouTube, and the search shows pertinent metadata (see below). I’m not sure if this data is input manually by users, or if Google mined this from the video :
  

  I admit that I’m new to using youtube-dl and ffmpeg, but with the help of the commenters on StackOverflow, I’m learning more each day. This post is a follow-up to my previous question : Downloading YouTube to mp3 and writing metadata (artist/song title) to mp3 file using youtube-dl

• Accessibilité de la barre de progression d’upload

  29 juillet 2015

  cf ce lien : https://developer.mozilla.org/fr/docs/Accessibilit%C3%A9/ARIA/FAQ_Applications_Web_et_ARIA