import subprocess
import os

ffmpeg_path = "ffmpeg"

cmd = f"{ffmpeg_path} -y -loglevel error -f concat -safe 0 -i %s -c copy test.mp4"

tmp_merge_file = "merge.tmp"
with open(tmp_merge_file, mode="w", encoding="utf8") as f:
    f.write("file './72439149X00E26C681B09_20240311000015_20240311000030.mp4'\n")
    # f.write("file ./72439149X00E26C681B09_20240311001015_20240311001030.mp4")
    
proc = subprocess.Popen(
        cmd % tmp_merge_file,
        stdin=subprocess.PIPE,
        stdout=None,
        shell=True
)

proc.communicate()
os.remove(tmp_merge_file)