1
|
|
|
""" |
2
|
|
|
ffmpeg_streaming._ffprobe |
3
|
|
|
~~~~~~~~~~~~ |
4
|
|
|
|
5
|
|
|
Probe the video |
6
|
|
|
|
7
|
|
|
|
8
|
|
|
:copyright: (c) 2020 by Amin Yazdanpanah. |
9
|
|
|
:website: https://www.aminyazdanpanah.com |
10
|
|
|
:email: [email protected] |
11
|
|
|
:license: MIT, see LICENSE for more details. |
12
|
|
|
""" |
13
|
|
|
|
14
|
|
|
import json |
15
|
|
|
import logging |
16
|
|
|
import subprocess |
17
|
|
|
|
18
|
|
|
from ._media_property import Size, Bitrate |
19
|
|
|
|
20
|
|
|
|
21
|
|
View Code Duplication |
class Streams: |
|
|
|
|
22
|
|
|
def __init__(self, streams): |
23
|
|
|
self.streams = streams |
24
|
|
|
|
25
|
|
|
def video(self, ignore_error=True): |
26
|
|
|
""" |
27
|
|
|
@TODO: add documentation |
28
|
|
|
""" |
29
|
|
|
return self._get_stream('video', ignore_error) |
30
|
|
|
|
31
|
|
|
def audio(self, ignore_error=True): |
32
|
|
|
""" |
33
|
|
|
@TODO: add documentation |
34
|
|
|
""" |
35
|
|
|
return self._get_stream('audio', ignore_error) |
36
|
|
|
|
37
|
|
|
def first_stream(self): |
38
|
|
|
""" |
39
|
|
|
@TODO: add documentation |
40
|
|
|
""" |
41
|
|
|
return self.streams[0] |
42
|
|
|
|
43
|
|
|
def all(self): |
44
|
|
|
""" |
45
|
|
|
@TODO: add documentation |
46
|
|
|
""" |
47
|
|
|
return self.streams |
48
|
|
|
|
49
|
|
|
def videos(self): |
50
|
|
|
""" |
51
|
|
|
@TODO: add documentation |
52
|
|
|
""" |
53
|
|
|
return self._get_streams('video') |
54
|
|
|
|
55
|
|
|
def audios(self): |
56
|
|
|
""" |
57
|
|
|
@TODO: add documentation |
58
|
|
|
""" |
59
|
|
|
return self._get_streams('audio') |
60
|
|
|
|
61
|
|
|
def _get_stream(self, media, ignore_error): |
62
|
|
|
""" |
63
|
|
|
@TODO: add documentation |
64
|
|
|
""" |
65
|
|
|
media_attr = next((stream for stream in self.streams if stream['codec_type'] == media), None) |
|
|
|
|
66
|
|
|
if media_attr is None and not ignore_error: |
67
|
|
|
raise ValueError('No ' + str(media) + ' stream found') |
68
|
|
|
return media_attr if media_attr is not None else {} |
69
|
|
|
|
70
|
|
|
def _get_streams(self, media): |
71
|
|
|
""" |
72
|
|
|
@TODO: add documentation |
73
|
|
|
""" |
74
|
|
|
for stream in self.streams: |
75
|
|
|
if stream['codec_type'] == media: |
76
|
|
|
yield stream |
77
|
|
|
|
78
|
|
|
|
79
|
|
|
class FFProbe: |
80
|
|
|
def __init__(self, filename, cmd='ffprobe'): |
81
|
|
|
""" |
82
|
|
|
@TODO: add documentation |
83
|
|
|
""" |
84
|
|
|
commands = [cmd, '-show_format', '-show_streams', '-of', 'json', filename] |
85
|
|
|
logging.info("ffprobe running command: {}".format(" ".join(commands))) |
86
|
|
|
process = subprocess.Popen(commands, stdout=subprocess.PIPE, stderr=subprocess.PIPE) |
87
|
|
|
self.out, err = process.communicate() |
88
|
|
|
if process.returncode != 0: |
89
|
|
|
logging.error(str(self.out) + str(err)) |
90
|
|
|
raise RuntimeError('ffprobe', self.out, err) |
91
|
|
|
logging.info("ffprobe executed command successfully!") |
92
|
|
|
|
93
|
|
|
def streams(self): |
94
|
|
|
""" |
95
|
|
|
@TODO: add documentation |
96
|
|
|
""" |
97
|
|
|
return Streams(json.loads(self.out.decode('utf-8'))['streams']) |
98
|
|
|
|
99
|
|
|
def format(self): |
100
|
|
|
""" |
101
|
|
|
@TODO: add documentation |
102
|
|
|
""" |
103
|
|
|
return json.loads(self.out.decode('utf-8'))['format'] |
104
|
|
|
|
105
|
|
|
def all(self): |
106
|
|
|
""" |
107
|
|
|
@TODO: add documentation |
108
|
|
|
""" |
109
|
|
|
return json.loads(self.out.decode('utf-8')) |
110
|
|
|
|
111
|
|
|
def save_as_json(self, path): |
112
|
|
|
""" |
113
|
|
|
@TODO: add documentation |
114
|
|
|
""" |
115
|
|
|
with open(path, 'w') as probe: |
116
|
|
|
probe.write(self.out.decode('utf-8')) |
117
|
|
|
|
118
|
|
|
@property |
119
|
|
|
def video_size(self) -> Size: |
120
|
|
|
""" |
121
|
|
|
@TODO: add documentation |
122
|
|
|
""" |
123
|
|
|
width = int(self.streams().video().get('width', 0)) |
124
|
|
|
height = int(self.streams().video().get('height', 0)) |
125
|
|
|
|
126
|
|
|
if width == 0 or height == 0: |
127
|
|
|
raise RuntimeError('It could not determine the value of width/height') |
128
|
|
|
|
129
|
|
|
return Size(width, height) |
130
|
|
|
|
131
|
|
|
@property |
132
|
|
|
def bitrate(self, _type: str = "k") -> Bitrate: |
133
|
|
|
""" |
134
|
|
|
@TODO: add documentation |
135
|
|
|
""" |
136
|
|
|
overall = int(self.format().get('bit_rate', 0)) |
137
|
|
|
video = int(self.streams().video().get('bit_rate', 0)) |
138
|
|
|
audio = int(self.streams().audio().get('bit_rate', 0)) |
139
|
|
|
|
140
|
|
|
if overall == 0: |
141
|
|
|
raise RuntimeError('It could not determine the value of bitrate') |
142
|
|
|
|
143
|
|
|
return Bitrate(video, audio, overall, type=_type) |
144
|
|
|
|
145
|
|
|
|
146
|
|
|
__all__ = [ |
147
|
|
|
'FFProbe' |
148
|
|
|
] |
149
|
|
|
|