自学教程：Python实现多个视频合成一个视频的功能

pip install ffmpy -i https://pypi.douban.com/simple

#!/user/bin/env python# coding=utf-8"""@project : csdn@author  : 剑客阿良_ALiang@file   : concat_video.py@ide    : PyCharm@time   : 2021-12-23 15:23:16""" from ffmpy import FFmpegimport osimport uuidimport subprocess  # 视频拼接def concat(video_list: list, output_dir: str):    if len(video_list) == 0:        raise Exception('video_list can not empty')    _ext = check_format(video_list)    _fps = check_fps(video_list)    _result_path = os.path.join(        output_dir, '{}{}'.format(            uuid.uuid1().hex, _ext))    _tmp_config = make_tmp_concat_config(video_list, output_dir)    ff = FFmpeg(inputs={'{}'.format(_tmp_config): '-f concat -safe 0 -y'}, outputs={        _result_path: '-c copy'})    print(ff.cmd)    ff.run()    os.remove(_tmp_config)    return _result_path  # 构造拼接所需临时文件def make_tmp_concat_config(video_list: list, output_dir: str):    _tmp_concat_config_path = os.path.join(output_dir, '{}.txt'.format(uuid.uuid1().hex))    with open(_tmp_concat_config_path, mode='w', encoding='utf-8') as f:        f.writelines(list(map(lambda x: 'file {}/n'.format(x), video_list)))    return _tmp_concat_config_path  # 校验每个视频的格式def check_format(video_list: list):    _video_format = ''    for x in video_list:        _ext = os.path.splitext(x)[-1]        if _video_format == '' and _ext != '':            _video_format = _ext            continue        if _video_format != '' and _ext == _video_format:            continue        if _video_format != '' and _ext != _video_format:            raise Exception('Inconsistent video format')    return _video_format  # 校验每个视频的fpsdef check_fps(video_list: list):    _video_fps = 0    for x in video_list:        _fps = get_video_fps(x)        if _video_fps == 0 and _fps:            _video_fps = _fps            continue        if _video_fps != 0 and _fps == _video_fps:            continue        if _video_fps != '' and _fps != _video_fps:            raise Exception('Inconsistent video fps')    if _video_fps == 0:        raise Exception('video fps error')    return _video_fps  # 获取视频fpsdef get_video_fps(video_path: str):    ext = os.path.splitext(video_path)[-1]    if ext != '.mp4' and ext != '.avi' and ext != '.flv':        raise Exception('format not support')    ffprobe_cmd = 'ffprobe -v error -select_streams v -of default=noprint_wrappers=1:nokey=1 -show_entries stream=r_frame_rate {}'    p = subprocess.Popen(        ffprobe_cmd.format(video_path),        stdout=subprocess.PIPE,        stderr=subprocess.PIPE,        shell=True)    out, err = p.communicate()    print("subprocess 执行结果：out:{} err:{}".format(out, err))    fps_info = str(out, 'utf-8').strip()    if fps_info:        if fps_info.find("/") > 0:            video_fps_str = fps_info.split('/', 1)            fps_result = int(int(video_fps_str[0]) / int(video_fps_str[1]))        else:            fps_result = int(fps_info)    else:        raise Exception('get fps error')    return fps_result  if __name__ == '__main__':    print(concat(['D:/tmp/100.mp4', 'D:/tmp/101.mp4'], 'C:/Users/huyi/Desktop'))

PyDev console: starting.Python 3.6.13 |Anaconda, Inc.| (default, Mar 16 2021, 11:37:27) [MSC v.1916 64 bit (AMD64)] on win32runfile('D:/spyder/csdn/tool/concat_video.py', wdir='D:/spyder/csdn/tool')subprocess 执行结果：out:b'25/1/r/n' err:b''subprocess 执行结果：out:b'25/1/r/n' err:b''ffmpeg -f concat -safe 0 -y -i C:/Users/huyi/Desktop/6d02df4b63d111eca6eee454e8bf1461.txt -c copy C:/Users/huyi/Desktop/6d02df4a63d111ec9dbbe454e8bf1461.mp4ffmpeg version n4.3.1-20-g8a2acdc6da Copyright (c) 2000-2020 the FFmpeg developers  built with gcc 9.3-win32 (GCC) 20200320  configuration: --prefix=/ffbuild/prefix --pkg-config-flags=--static --pkg-config=pkg-config --cross-prefix=x86_64-w64-mingw32- --arch=x86_64 --target-os=mingw32 --enable-gpl --enable-version3 --disable-debug --enable-iconv --enable-zlib --enable-libxml2 --enable-libfreetype --enable-libfribidi --enable-gmp --enable-lzma --enable-fontconfig --enable-libvmaf --disable-vulkan --enable-libvorbis --enable-amf --enable-libaom --enable-avisynth --enable-libdav1d --enable-ffnvcodec --enable-cuda-llvm --disable-libglslang --enable-libass --enable-libbluray --enable-libmp3lame --enable-libopus --enable-libtheora --enable-libvpx --enable-libwebp --enable-libmfx --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librav1e --enable-schannel --enable-sdl2 --enable-libsoxr --enable-libsrt --enable-libtwolame --enable-libvidstab --enable-libx264 --enable-libx265 --enable-libxvid --enable-libzimg --extra-cflags=-DLIBTWOLAME_STATIC --extra-cxxflags= --extra-ldflags=-pthread --extra-libs=-lgomp  libavutil      56. 51.100 / 56. 51.100  libavcodec     58. 91.100 / 58. 91.100  libavformat    58. 45.100 / 58. 45.100  libavdevice    58. 10.100 / 58. 10.100  libavfilter     7. 85.100 /  7. 85.100  libswscale      5.  7.100 /  5.  7.100  libswresample   3.  7.100 /  3.  7.100  libpostproc    55.  7.100 / 55.  7.100[mov,mp4,m4a,3gp,3g2,mj2 @ 000001de4a7aebc0] Auto-inserting h264_mp4toannexb bitstream filterInput #0, concat, from 'C:/Users/huyi/Desktop/6d02df4b63d111eca6eee454e8bf1461.txt':  Duration: N/A, start: -0.064000, bitrate: 1098 kb/s    Stream #0:0(und): Audio: aac (LC) (mp4a / 0x6134706D), 16000 Hz, mono, fltp, 69 kb/s    Metadata:      handler_name    : SoundHandler    Stream #0:1(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1080x1920, 1028 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc    Metadata:      handler_name    : VideoHandlerOutput #0, mp4, to 'C:/Users/huyi/Desktop/6d02df4a63d111ec9dbbe454e8bf1461.mp4':  Metadata:    encoder         : Lavf58.45.100    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1080x1920, q=2-31, 1028 kb/s, 25 fps, 25 tbr, 12800 tbn, 12800 tbc    Metadata:      handler_name    : VideoHandler    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 16000 Hz, mono, fltp, 69 kb/s    Metadata:      handler_name    : SoundHandlerStream mapping:  Stream #0:1 -> #0:0 (copy)  Stream #0:0 -> #0:1 (copy)Press [q] to stop, [?] for help[mov,mp4,m4a,3gp,3g2,mj2 @ 000001de4a7aebc0] Auto-inserting h264_mp4toannexb bitstream filter[mp4 @ 000001de4acdabc0] Non-monotonous DTS in output stream 0:1; previous: 6176768, current: 6176608; changing to 6176769. This may result in incorrect timestamps in the output file.frame=22199 fps=0.0 q=-1.0 Lsize=  119649kB time=00:14:48.05 bitrate=1103.7kbits/s speed=2.41e+03x    video:111571kB audio:7524kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.465183%C:/Users/huyi/Desktop/6d02df4a63d111ec9dbbe454e8bf1461.mp4