-
Notifications
You must be signed in to change notification settings - Fork 0
/
hylia-transcoder.py
executable file
·151 lines (126 loc) · 5.45 KB
/
hylia-transcoder.py
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
#!/usr/bin/env python
# encoding: utf-8
# known issues:
# - gstreamer demuxes xvid as video/x-xvid, but mpegtsmuxer can only accept video/mpeg. capssetter doesn't fix this.
# - MPEG-4 video can't seem to be muxed in properly, anyway.
# - Doesn't seem to work with the PS3...
import sys, os, time, thread
import glib, gobject, pygst
import argparse
pygst.require('0.10')
import gst
loop = glib.MainLoop()
class Main(object):
def __init__(self, parser, args):
self.parser = parser
self.args = args
self.transcoder = gst.Pipeline('transcoder')
self.input_file = gst.element_factory_make('filesrc', 'input-file')
self.input_file.set_property('location', self.args.input)
self.decoder = gst.element_factory_make('decodebin2', 'decoder')
self.decoder.connect('autoplug-continue', self.decoder_autoplug_continue)
self.decoder.connect('pad-added', self.decoder_pad_added)
self.decoder.connect('no-more-pads', self.decoder_no_more_pads)
queues = []
self.video_input_queue = gst.element_factory_make('queue2', 'video-input-queue')
queues.append(self.video_input_queue)
self.video_output_queue = gst.element_factory_make('queue2', 'video-output-queue')
queues.append(self.video_output_queue)
self.audio_input_queue = gst.element_factory_make('queue2', 'audio-input-queue')
queues.append(self.audio_input_queue)
self.audio_output_queue = gst.element_factory_make('queue2', 'audio-output-queue')
queues.append(self.audio_output_queue)
self.muxer = gst.element_factory_make('mpegtsmux', 'muxer')
self.output_file = gst.element_factory_make('filesink', 'output-file')
self.output_file.set_property('location', self.args.output)
self.transcoder.add(
self.input_file,
self.decoder,
self.video_input_queue,
self.video_output_queue,
self.audio_input_queue,
self.audio_output_queue,
self.muxer,
self.output_file
)
for queue in queues:
queue.set_property('max-size-buffers', 0)
queue.set_property('max-size-time', 0)
gst.element_link_many(self.input_file, self.decoder)
bus = self.transcoder.get_bus()
bus.add_signal_watch()
bus.connect('message', self.on_message)
def decoder_autoplug_continue(self, decoder, pad, caps):
caps_string = caps.to_string()
if caps_string.startswith('video/x-h264'):
return False
elif caps_string.startswith('audio/x-ac3'):
return False
elif caps_string.startswith('audio/mpeg'): # could be AAC, MP3, MP2
return False
return True
def decoder_pad_added(self, decoder, pad):
caps_string = pad.get_caps().to_string()
if caps_string.startswith('video'):
pad.link(self.video_input_queue.get_pad('sink'))
if caps_string.startswith('video/x-h264'):
#h264parse = gst.element_factory_make('h264parse', 'h264parse')
#h264parse.set_property('output-format', 1)
#self.transcoder.add(h264parse)
#gst.element_link_many(self.video_input_queue, h264parse, self.video_output_queue, self.muxer)
gst.element_link_many(self.video_input_queue, self.video_output_queue, self.muxer)
#h264parse.set_state(gst.STATE_PLAYING)
else:
video_encoder = gst.element_factory_make('ffenc_mpeg4', 'video-encoder')
video_encoder.set_property('bitrate', (2048*1000))
self.transcoder.add(video_encoder)
gst.element_link_many(self.video_input_queue, video_encoder, self.video_output_queue, self.muxer)
video_encoder.set_state(gst.STATE_PLAYING)
elif caps_string.startswith('audio'):
pad.link(self.audio_input_queue.get_pad('sink'))
if caps_string.startswith('audio/x-ac3'):
ac3parse = gst.element_factory_make('ac3parse', 'ac3parse')
self.transcoder.add(ac3parse)
gst.element_link_many(self.audio_input_queue, ac3parse, self.audio_output_queue, self.muxer)
ac3parse.set_state(gst.STATE_PLAYING)
elif caps_string.startswith('audio/mpeg'):
gst.element_link_many(self.audio_input_queue, self.audio_output_queue, self.muxer)
else:
audioconvert = gst.element_factory_make('audioconvert', 'audioconvert')
audio_encoder = gst.element_factory_make('ffenc_mp2', 'audio-encoder')
self.transcoder.add(audioconvert, audio_encoder)
gst.element_link_many(self.audio_input_queue, audioconvert, audio_encoder, self.audio_output_queue, self.muxer)
audioconvert.set_state(gst.STATE_PLAYING)
audio_encoder.set_state(gst.STATE_PLAYING)
def decoder_no_more_pads(self, decoder):
gst.element_link_many(self.muxer, self.output_file)
self.transcoder.set_state(gst.STATE_PLAYING)
def on_message(self, bus, message):
t = message.type
if t == gst.MESSAGE_EOS:
self.transcoder.set_state(gst.STATE_NULL)
self.playmode = False
elif t == gst.MESSAGE_ERROR:
self.transcoder.set_state(gst.STATE_NULL)
err, debug = message.parse_error()
logging.debug("Error: %s" % err, debug)
self.playmode = False
def start(self):
self.playmode = True
self.transcoder.set_state(gst.STATE_PAUSED)
while self.playmode:
time.sleep(1)
time.sleep(1)
loop.quit()
if __name__ == "__main__":
parser = argparse.ArgumentParser(description='Hylia intelligent media transcoder.')
parser.add_argument('input', help='the path or URL of media to be transcoded')
parser.add_argument('output', help='the path where transcoded data will be sent (defaults to /dev/null for testing)', nargs='?', default='/dev/null')
args = parser.parse_args()
if os.path.isfile(args.input):
mainclass = Main(parser, args)
thread.start_new_thread(mainclass.start, ())
gobject.threads_init()
loop.run()
else:
parser.error('Invalid input "%s"' % args.input)