Live to file transcoding

How can I create mp4 files at the same time during live transcoding?

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To create MP4 files in real-time during live transcoding, you can use a combination of hardware and software solutions. The process generally involves capturing a live video stream, transcoding it into the desired format (MP4 in this case), and then saving the transcoded content as separate MP4 files. Here’s a general outline of the steps you can take:

  1. Capture the Live Video Stream:
  • Use a video capture device or software to capture the live video stream. This could be from a camera, webcam, or another video source.
  • Popular tools for capturing video streams include OBS Studio, FFmpeg, or specialized hardware encoders.
  1. Transcoding the Video Stream:
  • Use a transcoding software or library to convert the live video stream into the MP4 format. FFmpeg is a powerful and widely used tool for transcoding. You can use it from the command line or integrate it into your custom application.
  • Example FFmpeg command for transcoding a live stream to MP4:

bashCopy code

ffmpeg -i input_stream -c:v libx264 -preset ultrafast -c:a aac -strict -2 output.mp4
* Replace `input_stream` with your live stream source, and `output.mp4` with the desired name for the output file.
  1. Saving Multiple MP4 Files:
  • To save multiple MP4 files simultaneously, you can run multiple instances of the transcoding process with different output file names or directories.
  • For example, you can use a scripting language like Python to automate this process. Create a script that runs multiple instances of FFmpeg with different output filenames.

pythonCopy code

import subprocess

for i in range(1, 6):  # Create 5 MP4 files
    input_stream = "your_live_stream_url"
    output_file = f"output_{i}.mp4"
    command = f"ffmpeg -i {input_stream} -c:v libx264 -preset ultrafast -c:a aac -strict -2 {output_file}"
    subprocess.Popen(command, shell=True)
  1. Considerations:
  • Ensure that your system has sufficient resources (CPU, memory, and disk space) to handle multiple transcoding processes simultaneously.
  • Monitor system performance during live transcoding to avoid overload or dropped frames.
  • Customize the transcoding settings (e.g., video bitrate, audio bitrate) based on your requirements and available bandwidth.

Remember that the specific details may vary based on your system, the tools you choose, and the characteristics of your live video source. Additionally, always check the licensing terms and legal requirements when working with video streams and transcoding.

Thank you for reply.

I understand what you said, but I would like to know if it is possible to do something similar with bitmovin’s API.
I was able to convert files to mp4 using bitmovin, but I couldn’t tell from the documentation whether it was possible to convert live sources to mp4.
Does anyone know?