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Convert FLV to MP4

Convert Flash Video (FLV) to modern, versatile MP4.

Recipe Parameters

Input Flv

Output Mp4

output.sh

ffmpeg -y -i path/to/input.flv path/to/output.mp4

Warm Reminder

This project is still in development and may contain errors. Please use with caution.

# Why use this command?

Flash is deprecated. Converting FLV to MP4 ensures your old video archives remain playable on modern browsers, phones, and media players.

FFmpeg transcodes the FLV container (usually containing H.264 or Sorenson Spark) into a standard MP4 file using H.264 video and AAC audio.

path/to/input.flvInput Flv configuration

path/to/output.mp4Output Mp4 configuration

FLV files often lose duration data. If the MP4 has no seek support, use '-map_metadata 0' to try and preserve available info.