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• How to create a JavaScript code to convert a YouTube video to mp3 on a website ?

  2 octobre 2019, par Uyen_77

  How does one take a YouTube link and convert it to mp3 ? I’ve seen this done on a few sites like : https://y2mate.com/ and https://ytmp3.cc/

  How is code like this written ? I want to do this in JavaScript but not sure how to implement. The way I am trying to make the site is by writing the code like :

  1. Load with curl : https://youtube.com/Watch
  2. Parse json & extract url
  3. Download video to server
  4. Use ffmpeg to convert
  5. Send url to user
  6. Allow them to download the extracted audio

  Can someone show what the code for this would look like.

  If anyone knows of a better way to do this for a website please explain.

  Thank you

• Playing RTP stream on Android 4.1.2 (Jelly Bean) [closed]

  27 décembre 2024, par Homie_Tomie

  I'll try to keep it quick. Using FFMPEG I started a stream on my PC. Here is the code :

  


  import subprocess

def start_stream():
    command = [
        'ffmpeg',
        '-f', 'gdigrab',  # Desktop capture (Windows)
        '-framerate', '15',  # Low framerate for higher performance
        '-i', 'desktop',  # Capture desktop
        '-c:v', 'libx264',  # Video codec (H.264)
        '-preset', 'ultrafast',  # Ultra-fast encoding preset for minimal latency
        '-tune', 'zerolatency',  # Zero latency for real-time streaming
        '-x264opts', 'keyint=15:min-keyint=15:no-scenecut',  # Frequent keyframes
        '-b:v', '500k',  # Low bitrate to minimize data usage and reduce latency
        '-s', '800x480',  # Resolution fits phone screen and helps performance
        '-max_delay', '0',  # No buffering, instant frame output
        '-flush_packets', '1',  # Flush packets immediately after encoding
        '-f', 'rtp',  # Use mpegts as the container for RTP stream
        'rtp://192.168.72.26:1234',  # Stream over UDP to localhost on port 1234
        '-sdp_file', 'stream.sdp'  # Create SDP file
    ]
    
    try:
        print("Starting stream...")
        subprocess.run(command, check=True)
    except subprocess.CalledProcessError as e:
        print(f"Error occurred: {e}")
    except KeyboardInterrupt:
        print("\nStream interrupted")

if __name__ == "__main__":
    print("Starting screen capture...")
    start_stream()


  


  Now, when I start the stream I can connect to it in VLC when I open up the stream.sdp file. Using the same method I can open up the stream on my iPhone, but when I try to open it on my old Android phone the stream connects but the screen is black. However, when I turn the screen I can see the first frame that was sent to the phone. Why does the stream not work ?

  


  I will be thankful for any and all advice :)

  


• avcodec/amfenc : Implement async_depth option

  7 novembre 2024, par Cameron Gutman

  avcodec/amfenc : Implement async_depth option
  This option, which is also available on other FFmpeg hardware encoders,
  
  allows the user to trade throughput for reduced output latency. This is
  
  useful for ultra low latency applications like game streaming.
  Signed-off-by : Cameron Gutman <aicommander@gmail.com>
  

  • [DH] libavcodec/amfenc.c
  • [DH] libavcodec/amfenc_av1.c
  • [DH] libavcodec/amfenc_h264.c
  • [DH] libavcodec/amfenc_hevc.c