Mapping multiple input files

When you have two media files, you can use only video in one media file and only audio in the other as follows.

Synchronous APIAsynchronous API

import subprocess

from ffmpeg import FFmpeg, Progress


def main():
    ffmpeg = (
        FFmpeg()
        .option("y")
        .input("input-a.mp4")
        .input("input-b.mp4")
        .output(
            "output.mp4",
            map=["0:0", "1:1"],
        )
    )

    @ffmpeg.on("progress")
    def on_progress(progress: Progress):
        print(progress)

    ffmpeg.execute()


if __name__ == "__main__":
    main()

import asyncio

from ffmpeg import Progress
from ffmpeg.asyncio import FFmpeg


async def main():
    ffmpeg = (
        FFmpeg()
        .option("y")
        .input("input-a.mp4")
        .input("input-b.mp4")
        .output(
            "output.mp4",
            map=["0:0", "1:1"],
        )
    )

    @ffmpeg.on("progress")
    def on_progress(progress: Progress):
        print(progress)

    await ffmpeg.execute()


if __name__ == "__main__":
    asyncio.run(main())