python - 尝试将ffprobe的输出转换为变量

我正在尝试将视频文件中的ffprobe值捕获到一个变量中，以便与他人进行比较或将该值移至数据库中。我有这个问题；有没有比下面更好的方法了？

我不喜欢使用多个if / elif / line.startswith语句，我不确定split是获取ffprobe值的最佳方法吗？

#!/usr/bin/python
import os, sys, subprocess, shlex, re, fnmatch
from subprocess import call

videoDrop_dir="/mnt/VoigtKampff/Temp/_Jonatha/test_drop"

for r,d,f in os.walk(videoDrop_dir):
    for files in f:
        print "Files: %s" % files
        if files.startswith(('._', '.')):
            print "This file: %s is not valid" % files
         elif files.endswith(('.mov', '.mpg', '.mp4', '.wmv', '.mxf')):
            fpath = os.path.join(r, files)
            def probe_file(fpath):
                cmnd = ['ffprobe', '-show_format', '-show_streams', '-pretty', '-loglevel', 'quiet', fpath]
                p = subprocess.Popen(cmnd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
                print files
                out, err = p.communicate()
                print "===============================OUTPUT START: %s ===============================" % files
                print out
                for line in out.split('\n'):
                line = line.strip()
                if line.startswith('codec_name='):
                    s = line
                    codec_name = s.split('codec_name=', 1)
                    print "Codec is: %s" % codec_name[1]
                    codec_1 = codec_name[1]
                elif line.startswith('codec_type='):
                    s = line
                    codec_type = s.split('codec_type=', 1)
                    print "Codec type is: %s" % codec_type[1]
                    codec_type1 = codec_type[1]
                elif line.startswith('codec_long_name=', 1):
                    s = line
                    codec_long_name = s.split('codec_long_name=', 1)
                    print "Codec long name: %s" % codec_long_name[1]
                    codec_long_name = codec_long_name[1]
                elif line.startswith('format_long_name=', 1):
                    s = line
                    format_long_name = s.split('format_long_name=', 1)
                    print "Format long name: %s" % format_long_name[1]
                    format_long_name = format_long_name[1]
                elif line.startswith('width='):
                    s = line
                    width = s.split('width=', 1)
                    print "Video pixel width is: %s" % width[1]
                    p_width = width[1]
                elif line.startswith('height='):
                    s = line
                    height = s.split('height=', 1)
                    print "Video pixel height is: %s" % height[1]
                    p_height = height[1]
                elif line.startswith('bit_rate='):
                    s = line
                    bit_rate = s.split('bit_rate=', 1)
                    print "Bit rate is: %s" % bit_rate[1]
                    bit_rate1 = bit_rate[1]
                elif line.startswith('display_aspect_ratio=', 1):
                    s = line
                    display_aspect_ratio = s.split('display_aspect_ratio=', 1)
                    print "Display aspect ratio: %s" % display_aspect_ratio[1]
                    display_aspect_ratio1 = display_aspect_ratio[1]
                elif line.startswith('avg_frame_rate=', 1):
                    s = line
                    avg_frame_rate = s.split('avg_frame_rate=', 1)
                    print "Average Frame Rate: %s" % avg_frame_rate[1]
                    avg_frame_rate1 = avg_frame_rate[1]

            print "===============================OUTPUT FINISH: %s ===============================" % files
            if err:
                print "===============================ERROR: %s ===============================" % files
                print err
        probe_file(fpath)
    else:
        if not files.startswith(('.mov', '.mpg', '.mp4', '.wmv', '.mxf')):
            print "This file: %s is not a valid video file" % files

最佳答案

您应该在https://codereview.stackexchange.com/上问这个问题

关于python - 尝试将ffprobe的输出转换为变量，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/15122942/