有一项测试的需求是判断录像是否和预期一致，检查项是：分辨率、录像时长等内容
文件的详细信息.png
os模块有一个stat()方法
st_mode: inode 保护模式
st_ino: inode 节点号。
st_dev: inode 驻留的设备。
st_nlink: inode 的链接数。
st_uid: 所有者的用户ID。
st_gid: 所有者的组ID。
st_size: 普通文件以字节为单位的大小；包含等待某些特殊文件的数据。
st_atime: 上次访问的时间。
st_mtime: 最后一次修改的时间。
st_ctime: 由操作系统报告的"ctime"。在某些系统上(如Unix)是最新的元数据更改的时间，在其它系统上(如Windows)是创建时间。常规属性
文件的常规属性.png
pymediainfo
pymediainfo 安装
1、使用pip安装
1pipinstallpymediainfo
2、下载MediaInfo
获取dll文件.png
将dll文件复制到python更目录下
以上就完成了环境的搭建
开始获取音频文件的详细信息
1.从网上下载一个ts媒体文件
1frompymediainfoimportMediaInfo
2media_info=MediaInfo.parse('C:\\Users\\Administrator\\Desktop\\test.ts')
3data=media_info.to_json()
4print(data)
更多用法欢迎去pymediainfo的官方文档查找，虽然我没找到data中就包含了我们所需要的内容，大概长这样，不过里面不知道为什么有很多重复的内容，但是已经满足需求了。
1{
2"tracks":[
3{
4"track_type":"General",
5"count":"332",
6"count_of_stream_of_this_kind":"1",
7"kind_of_stream":"General",
8"other_kind_of_stream":[
9"General"
10],
11"stream_identifier":"0",
12"track_id":1,
13"other_track_id":[
14"1(0x1)"
15],
16"count_of_video_streams":"1",
17"count_of_audio_streams":"1",
18"count_of_menu_streams":"1",
19"video_format_list":"AVC",
20"video_format_withhint_list":"AVC",
21"codecs_video":"AVC",
22"audio_format_list":"AAC",
23"audio_format_withhint_list":"AAC",
24"audio_codecs":"AACLC",
25"menu_format_list":"AVC/AAC",
26"menu_format_withhint_list":"AVC/AAC",
27"menu_codecs":"AVC/AACLC",
28"complete_name":"C:\\Users\\Administrator\\Desktop\\test.ts",
29"folder_name":"C:\\Users\\Administrator\\Desktop",
30"file_name":"test.ts",
31"other_file_name":[
32"test"
33],
34"file_extension":"ts",
35"format":"MPEG-TS",
36"other_format":[
37"MPEG-TS"
38],
39"format_extensions_usually_used":"tsm2tm2sm4tm4stmftstptrpty",
40"commercial_name":"MPEG-TS",
41"internet_media_type":"video/MP2T",
42"codec":"MPEG-TS",
43"other_codec":[
44"MPEG-TS"
45],
46"codec_extensions_usually_used":"tsm2tm2sm4tm4stmftstptrpty",
47"file_size":4721808,
48"other_file_size":[
49"4.50MiB",
50"5MiB",
51"4.5MiB",
52"4.50MiB",
53"4.503MiB"
54],
55"duration":"31240.000000",
56"other_duration":[
57"31s240ms",
58"31s240ms",
59"31s240ms",
60"00:00:31.240",
61"00:00:31.240"
62],
63"overall_bit_rate_mode":"VBR",
64"other_overall_bit_rate_mode":[
65"Variable"
66],
67"overall_bit_rate":1208833,
68"other_overall_bit_rate":[
69"1209kb/s"
70],
71"file_creation_date":"UTC-08-2604:05:47.439",
72"file_creation_date__local":"-08-2612:05:47.439",
73"file_last_modification_date":"UTC-08-2604:05:49.220",
74"file_last_modification_date__local":"-08-2612:05:49.220",
75"overallbitrate_precision_min":"1208813",
76"overallbitrate_precision_max":"1208852"
77},
78{
79"track_type":"Video",
80"count":"344",
81"count_of_stream_of_this_kind":"1",
82"kind_of_stream":"Video",
83"other_kind_of_stream":[
84"Video"
85],
86"stream_identifier":"0",
87"streamorder":"0-0",
88"track_id":256,
89"other_track_id":[
90"256(0x100)"
91],
92"menu_id":1,
93"other_menu_id":[
94"1(0x1)"
95],
96"format":"AVC",
97"format_info":"AdvancedVideoCodec",
98"format_url":"/x264.html",
99"commercial_name":"AVC",
100"format_profile":"Main@L3.1",
101"format_settings":"CABAC/4RefFrames",
102"format_settings__cabac":"Yes",
103"other_format_settings__cabac":[
104"Yes"
105],
106"format_settings__reframes":4,
107"other_format_settings__reframes":[
108"4frames"
109],
110"internet_media_type":"video/H264",
111"codec_id":"27",
112"codec":"AVC",
113"other_codec":[
114"AVC"
115],
116"codec_family":"AVC",
117"codec_info":"AdvancedVideoCodec",
118"codec_url":"/x264.html",
119"codec_profile":"Main@L3.1",
120"codec_settings":"CABAC/4RefFrames",
121"codec_settings__cabac":"Yes",
122"codec_settings_refframes":"4",
123"duration":31280,
124"other_duration":[
125"31s280ms",
126"31s280ms",
127"31s280ms",
128"00:00:31.280",
129"00:00:31.280"
130],
131"nominal_bit_rate":1024000,
132"other_nominal_bit_rate":[
133"1024kb/s"
134],
135"width":1280,
136"other_width":[
137"1280pixels"
138],
139"height":720,
140"other_height":[
141"720pixels"
142],
143"sampled_width":"1280",
144"sampled_height":"720",
145"pixel_aspect_ratio":"1.000",
146"display_aspect_ratio":"1.778",
147"other_display_aspect_ratio":[
148"16:9"
149],
150"frame_rate_mode":"VFR",
151"other_frame_rate_mode":[
152"Variable"
153],
154"resolution":8,
155"other_resolution":[
156"8bits"
157],
158"colorimetry":"4:2:0",
159"color_space":"YUV",
160"chroma_subsampling":"4:2:0",
161"other_chroma_subsampling":[
162"4:2:0"
163],
164"bit_depth":8,
165"other_bit_depth":[
166"8bits"
167],
168"scan_type":"Progressive",
169"other_scan_type":[
170"Progressive"
171],
172"interlacement":"PPF",
173"other_interlacement":[
174"Progressive"
175],
176"delay":"1481.000",
177"other_delay":[
178"1s481ms",
179"1s481ms",
180"1s481ms",
181"00:00:01.481"
182],
183"delay__origin":"Container",
184"other_delay__origin":[
185"Container"
186],
187"writing_library":"x264-core148",
188"other_writing_library":[
189"x264core148"
190],
191"encoded_library_name":"x264",
192"encoded_library_version":"core148",
193"encoding_settings":"cabac=1/ref=1/deblock=1:0:0/analyse=0x1:0/me=dia/subme=2/psy=0/mixed_ref=0/me_range=16/chroma_me=1/trellis=0/8x8dct=0/cqm=0/deadzone=21,11/fast_pskip=1/chroma_qp_offset=0/threads=4/lookahead_threads=2/sliced_threads=0/nr=0/decimate=1/interlaced=0/bluray_compat=0/constrained_intra=0/bframes=3/b_pyramid=2/b_adapt=2/b_bias=0/direct=3/weightb=0/open_gop=0/weightp=2/keyint=75/keyint_min=25/scenecut=60/intra_refresh=0/rc_lookahead=40/rc=abr/mbtree=1/bitrate=1024/ratetol=1.0/qcomp=0.40/qpmin=0/qpmax=69/qpstep=4/vbv_maxrate=1500/vbv_bufsize=1500/nal_hrd=none/filler=0/ip_ratio=1.40/aq=1:1.00"
194},
195{
196"track_type":"Audio",
197"count":"275",
198"count_of_stream_of_this_kind":"1",
199"kind_of_stream":"Audio",
200"other_kind_of_stream":[
201"Audio"
202],
203"stream_identifier":"0",
204"streamorder":"0-1",
205"track_id":257,
206"other_track_id":[
207"257(0x101)"
208],
209"menu_id":1,
210"other_menu_id":[
211"1(0x1)"
212],
213"format":"AAC",
214"format_info":"AdvancedAudioCodec",
215"commercial_name":"AAC",
216"format_version":"Version4",
217"format_profile":"LC",
218"muxing_mode":"ADTS",
219"codec_id":"15",
220"codec":"AACLC",
221"other_codec":[
222"AACLC"
223],
224"duration":31093,
225"other_duration":[
226"31s93ms",
227"31s93ms",
228"31s93ms",
229"00:00:31.093",
230"00:00:31.093"
231],
232"bit_rate_mode":"VBR",
233"other_bit_rate_mode":[
234"Variable"
235],
236"channel_s":2,
237"other_channel_s":[
238"2channels"
239],
240"channel_positions":"Front:LR",
241"other_channel_positions":[
242"2/0/0"
243],
244"channellayout":"LR",
245"samples_per_frame":"1024",
246"sampling_rate":44100,
247"other_sampling_rate":[
248"44.1kHz"
249],
250"samples_count":"1371201",
251"frame_rate":"43.066",
252"other_frame_rate":[
253"43.066FPS(1024SPF)"
254],
255"compression_mode":"Lossy",
256"other_compression_mode":[
257"Lossy"
258],
259"delay":"1400.000",
260"other_delay":[
261"1s400ms",
262"1s400ms",
263"1s400ms",
264"00:00:01.400"
265],
266"delay__origin":"Container",
267"other_delay__origin":[
268"Container"
269],
270"delay_relative_to_video":-81,
271"other_delay_relative_to_video":[
272"-81ms",
273"-81ms",
274"-81ms",
275"-00:00:00.081"
276],
277"video0_delay":-81,
278"other_video0_delay":[
279"-81ms",
280"-81ms",
281"-81ms",
282"-00:00:00.081"
283]
284},
285{
286"track_type":"Menu",
287"count":"94",
288"count_of_stream_of_this_kind":"1",
289"kind_of_stream":"Menu",
290"other_kind_of_stream":[
291"Menu"
292],
293"stream_identifier":"0",
294"streamorder":"0",
295"track_id":4096,
296"other_track_id":[
297"4096(0x1000)"
298],
299"menu_id":1,
300"other_menu_id":[
301"1(0x1)"
302],
303"format":"AVC/AAC",
304"commercial_name":"AVC/AAC",
305"codec":"AVC/AACLC",
306"other_codec":[
307"AVC/AACLC"
308],
309"duration":"31240.000000",
310"other_duration":[
311"31s240ms",
312"31s240ms",
313"31s240ms",
314"00:00:31.240",
315"00:00:31.240"
316],
317"delay":"1401.000000",
318"other_delay":[
319"1s401ms",
320"1s401ms",
321"1s401ms",
322"00:00:01.401"
323],
324"list_streamkind":"1/2",
325"list_streampos":"0/0",
326"list":"256/257",
327"other_list":[
328"256(0x100)(AVC)/257(0x101)(AAC)"
329],
330"service_name":"Service01",
331"service_provider":"FFmpeg",
332"service_type":"digitaltelevision",
333"pointer_field":"0",
334"section_length":"23"
335}
336]
337}
