|
1
|
|
|
""" |
|
2
|
|
|
ffmpeg_streaming.media |
|
3
|
|
|
~~~~~~~~~~~~ |
|
4
|
|
|
|
|
5
|
|
|
Media object to build a stream objects |
|
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
|
|
|
import abc |
|
14
|
|
|
import os |
|
15
|
|
|
import shutil |
|
16
|
|
|
import tempfile |
|
17
|
|
|
import atexit |
|
18
|
|
|
|
|
19
|
|
|
from ._clouds import CloudManager |
|
20
|
|
|
from ._command_builder import command_builder |
|
21
|
|
|
from ._format import Format |
|
22
|
|
|
from ._hls_helper import HLSKeyInfoFile, HLSMasterPlaylist |
|
23
|
|
|
from ._process import Process |
|
24
|
|
|
from ._reperesentation import Representation, AutoRep |
|
25
|
|
|
from ._utiles import mkdir, rm |
|
26
|
|
|
from .ffprobe import FFProbe |
|
27
|
|
|
|
|
28
|
|
|
|
|
29
|
|
|
class Save(abc.ABC): |
|
30
|
|
|
def __init__(self, media, _format: Format, **options): |
|
31
|
|
|
""" |
|
32
|
|
|
@TODO: add documentation |
|
33
|
|
|
""" |
|
34
|
|
|
atexit.register(self.finish_up) |
|
35
|
|
|
|
|
36
|
|
|
self.output_ = '' |
|
37
|
|
|
self.key = None |
|
38
|
|
|
self.media = media |
|
39
|
|
|
self.format = _format |
|
40
|
|
|
self.options = options |
|
41
|
|
|
self.pipe = None |
|
42
|
|
|
self.probe = None |
|
43
|
|
|
self.output_temp = False |
|
44
|
|
|
|
|
45
|
|
|
def finish_up(self): |
|
46
|
|
|
""" |
|
47
|
|
|
@TODO: add documentation |
|
48
|
|
|
""" |
|
49
|
|
|
if self.media.input_temp: |
|
50
|
|
|
rm(self.media.input) |
|
51
|
|
|
if self.output_temp: |
|
52
|
|
|
shutil.rmtree(os.path.dirname(str(self.output_)), ignore_errors=True) |
|
53
|
|
|
|
|
54
|
|
|
@abc.abstractmethod |
|
55
|
|
|
def set_up(self): |
|
56
|
|
|
pass |
|
57
|
|
|
|
|
58
|
|
|
def __getattr__(self, name): |
|
59
|
|
|
def method(*args, **kwargs): |
|
60
|
|
|
if name in ['save', 'package']: |
|
61
|
|
|
self.output(*args, **kwargs) |
|
62
|
|
|
else: |
|
63
|
|
|
raise AttributeError("The object has no attribute {}".format(name)) |
|
64
|
|
|
|
|
65
|
|
|
return method |
|
66
|
|
|
|
|
67
|
|
|
def output(self, output: str = None, clouds: CloudManager = None, monitor: callable = None, ffmpeg_bin: str = 'ffmpeg', **options): |
|
68
|
|
|
""" |
|
69
|
|
|
@TODO: add documentation |
|
70
|
|
|
""" |
|
71
|
|
|
if output is None and clouds is None: |
|
72
|
|
|
self.output_ = self.media.input |
|
73
|
|
|
elif clouds is not None: |
|
74
|
|
|
self.output_temp = True |
|
75
|
|
|
if clouds.filename is None: |
|
76
|
|
|
clouds.filename = os.path.basename(output if output is not None else self.media.input) |
|
77
|
|
|
self.output_ = os.path.join(tempfile.mkdtemp(prefix='ffmpeg_streaming_'), clouds.filename) |
|
78
|
|
|
else: |
|
79
|
|
|
mkdir(os.path.dirname(output)) |
|
80
|
|
|
self.output_ = output |
|
81
|
|
|
self.set_up() |
|
82
|
|
|
self._run(ffmpeg_bin, monitor, **options) |
|
83
|
|
|
if clouds is not None: |
|
84
|
|
|
clouds.transfer('upload_directory', os.path.dirname(self.output_)) |
|
85
|
|
|
|
|
86
|
|
|
if output is not None and self.output_temp: |
|
87
|
|
|
shutil.move(os.path.dirname(self.output_), os.path.dirname(output)) |
|
88
|
|
|
|
|
89
|
|
|
def _run(self, ffmpeg_bin, monitor: callable = None, **options): |
|
90
|
|
|
""" |
|
91
|
|
|
@TODO: add documentation |
|
92
|
|
|
""" |
|
93
|
|
|
with Process(self, command_builder(ffmpeg_bin, self), monitor, **options) as process: |
|
94
|
|
|
self.pipe, err = process.run() |
|
95
|
|
|
|
|
96
|
|
|
|
|
97
|
|
|
class Streaming(Save, abc.ABC): |
|
98
|
|
|
def __init__(self, media, _format: Format, **options): |
|
99
|
|
|
""" |
|
100
|
|
|
@TODO: add documentation |
|
101
|
|
|
""" |
|
102
|
|
|
self.reps = list |
|
103
|
|
|
super(Streaming, self).__init__(media, _format, **options) |
|
104
|
|
|
|
|
105
|
|
|
def representations(self, *reps: Representation): |
|
106
|
|
|
self.reps = list(reps) |
|
107
|
|
|
|
|
108
|
|
|
def auto_generate_representations(self, heights=None, bitrate=None, ffprobe_bin='ffprobe'): |
|
109
|
|
|
""" |
|
110
|
|
|
@TODO: add documentation |
|
111
|
|
|
""" |
|
112
|
|
|
self.probe = FFProbe(self.media.input, ffprobe_bin) |
|
113
|
|
|
self.reps = AutoRep(self.probe.video_size, self.probe.bitrate, self.format, heights, bitrate) |
|
114
|
|
|
|
|
115
|
|
|
|
|
116
|
|
|
class DASH(Streaming): |
|
117
|
|
|
def set_up(self): |
|
118
|
|
|
pass |
|
119
|
|
|
|
|
120
|
|
|
def generate_hls_playlist(self): |
|
121
|
|
|
self.options.update({'hls_playlist': "1"}) |
|
122
|
|
|
|
|
123
|
|
|
|
|
124
|
|
|
class HLS(Streaming): |
|
125
|
|
|
KEY_INFO_FILE_PATH = None |
|
126
|
|
|
PERIODIC_RE_KEY_FLAG = 'periodic_rekey' |
|
127
|
|
|
|
|
128
|
|
|
def set_up(self): |
|
129
|
|
|
""" |
|
130
|
|
|
@TODO: add documentation |
|
131
|
|
|
""" |
|
132
|
|
|
HLSMasterPlaylist.generate(self) |
|
133
|
|
|
|
|
134
|
|
|
def encryption(self, path: str, url: str, key_rotation_period: int = 0, needle: str = ".ts' for writing", length: int = 16): |
|
135
|
|
|
""" |
|
136
|
|
|
@TODO: add documentation |
|
137
|
|
|
""" |
|
138
|
|
|
with tempfile.NamedTemporaryFile(mode='w', suffix='_py_ff_vi_st.tmp', delete=False) as key_info: |
|
139
|
|
|
HLS.KEY_INFO_FILE_PATH = key_info.name |
|
140
|
|
|
|
|
141
|
|
|
key_info_file = HLSKeyInfoFile(HLS.KEY_INFO_FILE_PATH, path, url, key_rotation_period, needle, length) |
|
142
|
|
|
self.options.update({'hls_key_info_file': str(key_info_file)}) |
|
143
|
|
|
|
|
144
|
|
|
if key_rotation_period > 0: |
|
145
|
|
|
setattr(self, 'key_rotation', key_info_file) |
|
146
|
|
|
self.flags(HLS.PERIODIC_RE_KEY_FLAG) |
|
147
|
|
|
|
|
148
|
|
|
def fragmented_mp4(self): |
|
149
|
|
|
""" |
|
150
|
|
|
@TODO: add documentation |
|
151
|
|
|
""" |
|
152
|
|
|
self.options.update({'hls_segment_type': 'fmp4'}) |
|
153
|
|
|
|
|
154
|
|
|
def flags(self, *flags: str): |
|
155
|
|
|
""" |
|
156
|
|
|
@TODO: add documentation |
|
157
|
|
|
""" |
|
158
|
|
|
hls_flags = self.options.pop('hls_flags', None) |
|
159
|
|
|
hls_flags = hls_flags + "+" + "+".join(list(flags)) if hls_flags is not None else "+".join(list(flags)) |
|
160
|
|
|
self.options.update({'hls_flags': hls_flags}) |
|
161
|
|
|
|
|
162
|
|
|
def finish_up(self): |
|
163
|
|
|
""" |
|
164
|
|
|
@TODO: add documentation |
|
165
|
|
|
""" |
|
166
|
|
|
if HLS.KEY_INFO_FILE_PATH is not None: |
|
167
|
|
|
rm(HLS.KEY_INFO_FILE_PATH) |
|
168
|
|
|
|
|
169
|
|
|
super(HLS, self).finish_up() |
|
170
|
|
|
|
|
171
|
|
|
|
|
172
|
|
|
class Stream2File(Save): |
|
173
|
|
|
""" |
|
174
|
|
|
@TODO: add documentation |
|
175
|
|
|
""" |
|
176
|
|
|
def set_up(self): |
|
177
|
|
|
pass |
|
178
|
|
|
|
|
179
|
|
|
|
|
180
|
|
|
class Media(object): |
|
181
|
|
|
def __init__(self, input_opts): |
|
182
|
|
|
""" |
|
183
|
|
|
@TODO: add documentation |
|
184
|
|
|
""" |
|
185
|
|
|
options = dict(input_opts) |
|
186
|
|
|
self.input = options.get('i', None) |
|
187
|
|
|
self.input_temp = options.pop('is_tmp', False) |
|
188
|
|
|
self.input_opts = options |
|
189
|
|
|
|
|
190
|
|
|
def hls(self, _format: Format, **hls_options): |
|
191
|
|
|
""" |
|
192
|
|
|
@TODO: add documentation |
|
193
|
|
|
""" |
|
194
|
|
|
return HLS(self, _format, **hls_options) |
|
195
|
|
|
|
|
196
|
|
|
def dash(self, _format: Format, **dash_options): |
|
197
|
|
|
""" |
|
198
|
|
|
@TODO: add documentation |
|
199
|
|
|
""" |
|
200
|
|
|
return DASH(self, _format, **dash_options) |
|
201
|
|
|
|
|
202
|
|
|
def stream2file(self, _format: Format, **options): |
|
203
|
|
|
""" |
|
204
|
|
|
@TODO: add documentation |
|
205
|
|
|
""" |
|
206
|
|
|
return Stream2File(self, _format, **options) |
|
207
|
|
|
|
|
208
|
|
|
|
aminyazdanpanah /
python-ffmpeg-video-streaming
