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• Two rtsp streams to youtube on a Pi3

  19 mars 2020, par Sébastien Bonaimé

  I want to stream two rtsp camera from my birdbox to youtube from my raspberry pi 3 with the entrance in Pip (picture in picture) on top left. I don’t need sound.

  192.168.1.13 can do 30 fps with sound that I don’t need
  192.168.1.31 is only 12 fps without sound

  I have some problems of lag between the two camera on the youtube stream which I think is due to the different fps. I compile ffmpeg with h264. Here is what I did

  ffmpeg -re -f lavfi -i anullsrc -rtsp_transport udp -thread_queue_size 1000k -i rtsp://admin:123@192.168.1.13:554 -i rtsp://admin:@192.168.1.31:554 -filter_complex "[1]scale=iw/4:ih/4[pip]; [2][pip] overlay=0:0"   -framerate 13  -bufsize 512k  -b:v 1500k -threads 4 -q:v 3  -c:v h264_omx  -c:a aac -f flv rtmp://a.rtmp.youtube.com/live2/XXX-XXXX-XXX

  and here are the errors

  [h264 @ 0x20ddd30] error while decoding MB 69 67, bytestream -6rate=1589.2kbits/s dup=0 drop=6 speed=0.997x
  
  [h264 @ 0x20ddd30] concealing 100 DC, 100 AC, 100 MV errors in I frame
  
  rtsp://admin:@192.168.1.31:554: corrupt decoded frame in stream 0te=1589.0kbits/s dup=0 drop=6 speed=0.997x
  
  [rtsp @ 0x1f2cea0] max delay reached. need to consume packetbitrate=1589.2kbits/s dup=0 drop=6 speed=0.997x
  
  [rtsp @ 0x1f2cea0] RTP: missed 35 packets
  
  [h264 @ 0x2099580] error while decoding MB 60 30, bytestream -6rate=1589.3kbits/s dup=0 drop=6 speed=0.997x
  
  [h264 @ 0x2099580] concealing 4549 DC, 4549 AC, 4549 MV errors in I frame
  
  rtsp://admin:@192.168.1.31:554: corrupt decoded frame in stream 0
  
  [rtsp @ 0x1f2cea0] max delay reached. need to consume packetbitrate=1588.9

  What can I do to improve the stream ? When a bird enter the box, there is also a quality problem when the image is changing and some lagging.
  You can have a look here
  https://www.youtube.com/watch?v=iisbinyvSFk&feature=youtu.be

  Thank you

• add thumbnail and metadata to mp3 file on converting using youtube-dl by python script

  18 septembre 2015, par arun pal

  I want to add metadata as well as thumbnail image to my mp3 file. How to do that , can anybody help me ?

  from __future__ import unicode_literals
  
  import youtube_dl
  
  
  
  n="cwHzy7ftLyI"
  
  
  
  ydl_opts = {
  
      'format': 'bestaudio/best',
  
  
  
      'verbose':True,
  
  
  
      'postprocessors': [{
  
          'key': 'FFmpegExtractAudio',
  
          'preferredcodec': 'mp3',
  
          'preferredquality': '192',
  
          }],
  
          'addmetadata':True,
  
          'embedthumbnail':True,
  
          'writethumbnail':True,
  
      }
  
  with youtube_dl.YoutubeDL(ydl_opts) as ydl:
  
      ydl.add_default_info_extractors()
  
      ydl.download(['http://www.youtube.com/watch?v='+n])

• Is there a way to use youtube-dl in async

  8 octobre 2024, par Stam Kaly

  I have an application where I use zmq with asyncio to communicate with the clients who have the ability to download a video with youtube-dl to the server. I tried adding await to youtube_dl's download function but it gave me an error since it was not a coroutine. My code right now is simply looking like this :

  



  import asyncio
import youtube_dl


async def networking_stuff():
    download = True
    while True:
        if download:
            print("Received a request for download")
            await youtube_to_mp3("https://www.youtube.com/watch?v=u9WgtlgGAgs")
            download = False
        print("Working..")
        await asyncio.sleep(2)


async def youtube_to_mp3(url):
    ydl_opts = {
        'format': 'bestaudio/best',
        'postprocessors': [{
            'key': 'FFmpegExtractAudio',
            'preferredcodec': 'mp3',
            'preferredquality': '192',
        }]
    }

    with youtube_dl.YoutubeDL(ydl_opts) as ydl:
        ydl.download([url])


loop = asyncio.get_event_loop()
loop.create_task(networking_stuff())
loop.run_forever()


  



  which gives the following output :

  



  Received a request for download
[youtube] u9WgtlgGAgs: Downloading webpage
[youtube] u9WgtlgGAgs: Downloading video info webpage
[youtube] u9WgtlgGAgs: Extracting video information
[youtube] u9WgtlgGAgs: Downloading MPD manifest
[download] Destination: The Cardigans - My Favourite Game “Stone Version”-u9WgtlgGAgs.webm
[download] 100% of 4.20MiB in 00:03
[ffmpeg] Destination: The Cardigans - My Favourite Game “Stone Version”-u9WgtlgGAgs.mp3
Deleting original file The Cardigans - My Favourite Game “Stone Version”-u9WgtlgGAgs.webm (pass -k to keep)
Working..
Working..
....
Working..
Working..


  



  whereas I would expect the Working.. message to be printed in between youtube-dl's messages as well. Am I missing something here or is this impossible with async/await ? Is ffmpeg blocking ? If so, can I run the download in async without converting to mp3 or is using threads the only way ?