删除视频最后几帧 剪切视频

删除视频最后几帧 剪切视频

remove_last.py

import subprocess
def remove_last_frame(input_file, output_file, frame_rate):
    command_duration = [
        'ffprobe',
        '-v', 'error',
        '-show_entries', 'format=duration',
        '-of', 'default=noprint_wrappers=1:nokey=1',
        input_file
    ]
    try:
        total_duration = float(subprocess.check_output(command_duration).strip())
        # 减去最后一帧的时长
        new_duration = total_duration - (5 / frame_rate)
        # 调用 ffmpeg 剪切视频
        command_ffmpeg = [
            'ffmpeg',
            '-i', input_file,
            '-t', str(new_duration),
            '-c', 'copy',  # 不重新编码
            '-y',  # 强制覆盖输出文件
            output_file
        ]

        subprocess.run(command_ffmpeg, check=True)
        print(f"Successfully removed the last frame from {input_file} and saved as {output_file}")

    except subprocess.CalledProcessError as e:
        print(f"Error occurred: {e}")

# 示例使用
input_file = r"E:\project\depth\buquan2\JpS7kM8\seg\mp4_all\blur\20201229_100633_861519_0_107_25.mp4"
output_file = input_file[:-4]+"_new.mp4"
frame_rate = 25

remove_last_frame(input_file, output_file, frame_rate)