Bufsize?

[lucemia]

When using FFmpeg with a URL as the input source, you may encounter issues where FFmpeg fails to retrieve file metadata within the expected time or within the available buffer size. This can happen due to various reasons, including slow network connections, large file sizes, or server-side rate limiting. Here are some approaches to address or mitigate these issues:

1. Increase Timeout Settings: FFmpeg allows you to specify timeout settings for network operations. You can increase the timeout to give FFmpeg more time to wait for a response from the server. This is done using the -timeout option, where the timeout value is in microseconds.

   ffmpeg -i "http://example.com/input.mp4 -timeout 5000000" -codec copy output.mkv
   

   This sets the timeout to 5 seconds (5,000,000 microseconds).

2. Increase Analyzeduration and Probesize: Sometimes, the default analyzeduration and probesize might be insufficient to determine the file metadata, especially for streams with complex codecs or high bit rates. You can increase these values:

   • analyzeduration is the maximum duration for FFmpeg to analyze the stream properties (in microseconds).
   • probesize is the amount of the stream data FFmpeg will analyze to determine the stream information (in bytes).

   ffmpeg -analyzeduration 10000000 -probesize 50000000 -i "http://example.com/input.mp4" -codec copy output.mkv
   

   This sets the analyzeduration to 10 seconds and the probesize to 50 MB.

3. Adjust Buffer Size: If the issue is related to the buffer size, you can adjust the buffer size with the -bufsize option:

   ffmpeg -i "http://example.com/input.mp4" -bufsize 65536k -codec copy output.mkv
   

   This increases the buffer size to 64 MB.

4. Use a More Stable Connection: If the problem is due to an unstable or slow network connection, consider using a more reliable and faster internet connection. Network issues can significantly impact the ability of FFmpeg to stream and process video data efficiently.

5. Retry Mechanism: Implement a retry mechanism in your script or application to automatically retry fetching the stream if FFmpeg fails initially. This can be especially useful in environments where network instability is common.

6. Check Server Configuration: Ensure that the server hosting the video files isn't configured with restrictive rate limiting or connection timeouts that might be affecting FFmpeg's ability to download the metadata.

7. Update FFmpeg: Make sure you are using an up-to-date version of FFmpeg, as newer versions may have improved handling of network streams and better default settings for analyzeduration and probesize.

By tweaking these settings, you can optimize FFmpeg’s performance with URL inputs and reduce the likelihood of encountering exceptions due to metadata retrieval issues.

https://example.com/input.mp4%22

• 404 - Not Found
• None

https://example.com/input.mp4

• 404 - Not Found
• None