: Most scripts of this nature use the FFmpeg Concat Demuxer . This method is "lossless" because it copies the data streams without re-encoding them, provided all input files have the same resolution, frame rate, and codecs.
: If the input MP4s have different settings (e.g., one is 1080p and another is 720p), the "copy" command will fail or produce a corrupted video. In these cases, the script must re-encode the videos to a unified format.
Whether the input videos have or formats. The specific naming convention of the source files.
Since there is no public documentation for a standard tool with this exact name, it is highly likely a or a batch command utilizing a media engine like FFmpeg . Technical Breakdown of the Process
: The script creates a text file (e.g., inputs.txt ) listing all files to be merged.
A report on such a tool typically covers how it handles the merging process: