File: ingest.py

package info (click to toggle)
voctomix-outcasts 0.9.3-2
  • links: PTS, VCS
  • area: main
  • in suites: bookworm, bullseye, sid
  • size: 212 kB
  • sloc: python: 688; sh: 156; makefile: 18
file content (471 lines) | stat: -rwxr-xr-x 13,411 bytes parent folder | download
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
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
#!/usr/bin/env python3
"""
ingest.py: source client for Voctomix.

   Copyright: 2015,2016,2017 Carl F. Karsten <carl@nextdayvideo.com>,
                             Ryan Verner <ryan@nextdayvideo.com.au>

   Permission is hereby granted, free of charge, to any person obtaining a copy
   of this software and associated documentation files (the "Software"), to
   deal in the Software without restriction, including without limitation the
   rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
   sell copies of the Software, and to permit persons to whom the Software is
   furnished to do so, subject to the following conditions:

   The above copyright notice and this permission notice shall be included in
   all copies or substantial portions of the Software.


Features:
    Retrieves audio and video-caps config from core.
      and client config
    Uses core's clock.
    Mix and match audio and video sources muxed into one stream.
    Can display video locally, including frame count and fps.
    Defaults to test audio and video sent to local core.
"""

import argparse
from pprint import pprint
import socket
import sys

import gi
gi.require_version('Gst', '1.0')
gi.require_version('GstNet', '1.0')
from gi.repository import Gst, GstNet, GObject, GLib

from lib.connection import Connection


def mk_video_src(args, videocaps):
    # make video source part of pipeline
    # args come from command line
    # videocaps come from voctocore

    if args.video_source == 'dv':
        video_src = """
            dv1394src name=videosrc {attribs} !
        dvdemux name=demux !
        queue max-size-time=4000000000 !
        dvdec !
            """

    elif args.video_source == 'hdv':
        video_src = """
            hdv1394src {attribs} name=videosrc !
        tsdemux !
        queue max-size-time=4000000000 !
        decodebin !
            """

    elif args.video_source == 'hdmi2usb':
        # https://hdmi2usb.tv
        # Note: this code works with 720p
        video_src = """
            v4l2src {attribs} name=videosrc !
                queue max-size-time=4000000000 !
        image/jpeg,width=1280,height=720 !
                jpegdec !
            """

    elif args.video_source == 'ximage':
        # startx=0 starty=0 endx=1919 endy=1079 !
        video_src = """
            ximagesrc {attribs} name=videosrc
                   use-damage=false !
            """

    elif args.video_source == 'blackmagic':
        video_src = """
            decklinkvideosrc name=videosrc {attribs} !
            """
        # yadif !
        # deinterlace

    elif args.video_source == 'png':
        video_src = """
            multifilesrc {attribs}
                caps="image/png" !
            pngdec !
            """

    elif args.video_source == 'file':
        video_src = """
            multifilesrc {attribs} !
            decodebin name=src
            src. !
            queue !
            """

    elif args.video_source == 'test':

        video_src = """
    videotestsrc name=videosrc {attribs} !
    """
        # things to render as text ontop of test video
        video_src += """
    clockoverlay
        text="Source: {hostname}\nCaps: {videocaps}\nAttribs: {attribs}\n"
        halignment=left line-alignment=left !
            """.format(hostname=socket.gethostname(),
                    videocaps=videocaps,
                    attribs=args.video_attribs)

    elif args.video_source == 'spacescope':
        # Stereo visualizer
        # pair up with test beep for a handy AV sync test.
        video_src = """
      audio_tee. ! queue !
    spacescope shader=none style=lines {attribs} !
           """

    if args.monitor:
        if args.debug:
            videosink="fpsdisplaysink"
        else:
            videosink="autovideosink"

        video_src += """
            tee name=t ! queue !
                    videoconvert ! {videosink} sync=false
                    t. ! queue !
            """.format(videosink=videosink)

    if args.video_elements:
        video_src += args.video_elements + " !\n"

    video_src += videocaps + " !\n"

    video_src = video_src.format(attribs=args.video_attribs)

    return video_src


def mk_audio_src(args, audiocaps):

    d = {
        'attribs': args.audio_attribs,
        'base_audio_attribs':
            'provide-clock=false slave-method=re-timestamp',
        'audiocaps': audiocaps,
    }

    if args.audio_source in ['dv', 'hdv']:
        # this only works if video is from DV also.
        # or some gst source that gets demux ed
        audio_src = """
            demux.audio !
                queue !
                """

    elif args.audio_source == 'file':
        # this only works if video is from ...
        # some gst source that gets demux ed, I guess.
        audio_src = """
        src. !
                queue !
                """

    elif args.audio_source == 'pulse':
        audio_src = """
                pulsesrc {attribs} {base_audio_attribs} name=audiosrc !
                queue max-size-time=4000000000 ! audiorate !
                """

    elif args.audio_source == 'alsa':
        audio_src = """
                alsasrc {attribs} {base_audio_attribs} name=audiosrc !
                queue max-size-time=4000000000 ! audiorate !
                """

    elif args.audio_source == 'blackmagic':
        audio_src = """
            decklinkaudiosrc name=audiosrc {attribs} !
            """

    elif args.audio_source == 'test':
        audio_src = """
            audiotestsrc wave=ticks freq=330 {attribs} name=audiosrc !
            """

    if args.audio_elements:
        audio_src += args.audio_elements + " !\n"

    audio_src += """
       {audiocaps} !
    tee name=audio_tee
      audio_tee. ! queue !
      """
    audio_src = audio_src.format(**d)

    return audio_src


def mk_client(core_ip, port):

    client = "tcpclientsink host={host} port={port}".format(
            host=core_ip, port=port)

    return client


def mk_pipeline(args, server_caps, core_ip):

    if args.src:
        src = args.src.format(**server_caps)

    else:
        video_src = mk_video_src(args, server_caps['videocaps'])
        audio_src = mk_audio_src(args, server_caps['audiocaps'])
        src =  """
            {video_src}
             mux.
            {audio_src}
             mux.
            matroskamux name=mux !
        """.format(video_src=video_src, audio_src=audio_src)

    client = mk_client(core_ip, args.port)

    pipeline = """
            {src}
    {client}
    """.format(src=src, client=client)

    # remove blank lines to make it more human readable
    while "\n\n" in pipeline:
        pipeline = pipeline.replace("\n\n", "\n")

    print(pipeline)

    if args.debug:
        # print something to run in a shell
        gst_cmd = "gst-launch-1.0 {}".format(pipeline)

        # escape the ! because bash
        # asl2: ! is interpreted as a command history metacharacter
        gst_cmd = gst_cmd.replace("!", " \! ")

        # remove all the \n to make it easy to cut/paste into shell
        gst_cmd = gst_cmd.replace("\n", " ")
        while "  " in gst_cmd:
            gst_cmd = gst_cmd.replace("  ", " ")
        print("-"*78)
        print(gst_cmd)
        print("-"*78)

    return pipeline

def get_server_conf(core_ip, source_id, args):

    # establish a synchronus connection to server
    conn = Connection(core_ip)

    # fetch config from server
    server_config = conn.fetch_config()

    # Pull out the configs relevant to this client
    server_conf = {
        'videocaps': server_config['mix']['videocaps'],
        'audiocaps': server_config['mix']['audiocaps']
        }

    if source_id is not None:

        # get conf from server for this source,
        d=server_config[source_id]
        if args.debug:
            pprint(d)

        # stomp all over command line values
        # this is backwards: command line should override conf file.
        for k in d:
            if args.debug:
                print('--{}="{}"'.format(k,d[k]))
            # python argparse converts a-b to a_b, so we will to too.
            args.__setattr__(k.replace("-", "_"),d[k])

    return server_conf, args


def get_clock(core_ip, core_clock_port=9998):

    clock = GstNet.NetClientClock.new(
        'voctocore', core_ip, core_clock_port, 0)

    print('obtained NetClientClock from host: {ip}:{port}'.format(
        ip=core_ip, port=core_clock_port))

    print('waiting for NetClientClock to sync...')
    clock.wait_for_sync(Gst.CLOCK_TIME_NONE)
    print('synced with NetClientClock.')

    return clock


def run_pipeline(pipeline, clock, audio_delay=0, video_delay=0):

    def on_eos(bus, message):
        print('Received EOS-Signal')
        sys.exit(0)

    def on_error(bus, message):
        print('Received Error-Signal')
        (error, debug) = message.parse_error()
        print('Error-Details: #%u: %s' % (error.code, debug))
        sys.exit(2)

    print('starting pipeline...')
    senderPipeline = Gst.parse_launch(pipeline)
    if clock is not None:
        senderPipeline.use_clock(clock)

    # Delay video/audio if required
    NS_TO_MS = 100000

    if video_delay > 0:
        print('Adjusting video sync: [{} milliseconds]'.format(video_delay))
        video_delay = video_delay * NS_TO_MS
        videosrc = senderPipeline.get_by_name('videosrc')
        videosrc.get_static_pad('src').set_offset(video_delay)

    if audio_delay > 0:
        print('Adjusting audio sync: [{} milliseconds]'.format(audio_delay))
        audio_delay = audio_delay * NS_TO_MS
        audiosrc = senderPipeline.get_by_name('audiosrc')
        audiosrc.get_static_pad('src').set_offset(audio_delay)

    # Binding End-of-Stream-Signal on Source-Pipeline
    senderPipeline.bus.add_signal_watch()
    senderPipeline.bus.connect("message::eos", on_eos)
    senderPipeline.bus.connect("message::error", on_error)

    print("playing...")
    senderPipeline.set_state(Gst.State.PLAYING)

    mainloop = GLib.MainLoop()
    try:
        mainloop.run()
    except KeyboardInterrupt:
        print('Terminated via Ctrl-C')

    print('Shutting down...')
    senderPipeline.set_state(Gst.State.NULL)
    print('Done.')

    return


def get_args():
    parser = argparse.ArgumentParser(
            description='''Vocto-ingest Client with Net-time support.
            Gst caps are retrieved from the server.
            Run without parameters: send test av to localhost:10000
            ''')

    parser.add_argument(
        '-v', '--verbose', action='count', default=0,
        help="Also print INFO and DEBUG messages.")

    parser.add_argument('--source-id', action='store',
            help="get config from server using this id.")

    parser.add_argument(
        '--src', action='store', default='',
        help="gst source pipeline")

    parser.add_argument(
        '--video-source', action='store',
        choices=[
            'dv', 'hdv', 'udp_h264', 'hdmi2usb', 'blackmagic',
            'ximage', 'png', 'file', 'test', 'spacescope'],
        default='test',
        help="Where to get video from")

    parser.add_argument(
        '--video-attribs', action='store', default='',
        help="misc video attributes for gst")

    parser.add_argument(
        '--video-delay', action='store',
        default=0,
        type=int,
        help="delay video by this many milliseconds")

    parser.add_argument(
        '--video-elements', action='store',
        default='videoconvert ! videorate ! videoscale',
        help="gst video elments ! after src")

    parser.add_argument(
        '--audio-source', action='store',
        choices=['dv', 'hdv', 'file',
            'alsa', 'pulse', 'blackmagic', 'test', ],
        default='test',
        help="Where to get audio from")

    parser.add_argument(
        '--audio-attribs', action='store',
        default='',
        help="misc audio attributes for gst")

    parser.add_argument(
        '--audio-delay', action='store',
        default=0,
        type=int,
        help="delay audio by this many milliseconds")

    parser.add_argument(
        '--audio-elements', action='store',
        default="audioconvert ! audioresample ! audiorate",
        help="gst audio elments ! after src")

    parser.add_argument(
        '-m', '--monitor', action='store_true',
        help="local display sink")

    parser.add_argument(
        '--host', action='store',
        default='localhost',
        help="hostname of vocto core")

    parser.add_argument(
        '--port', action='store',
        default='10000',
        help="port of vocto core")

    parser.add_argument(
        '--no-clock', action='store_true',
        help="Don't use core's clock. (danger)")

    parser.add_argument(
        '--debug', action='store_true',
        help="debugging things, like dump a  gst-launch-1.0 command")

    args = parser.parse_args()

    return args


def main():
    GObject.threads_init()
    Gst.init([])

    args = get_args()
    core_ip = socket.gethostbyname(args.host)

    server_caps, args = get_server_conf(core_ip, args.source_id, args)

    pipeline = mk_pipeline(args, server_caps, core_ip)

    if args.no_clock:
        clock = None
    else:
        clock = get_clock(core_ip)

    run_pipeline(pipeline, clock, args.audio_delay, args.video_delay)


if __name__ == '__main__':
    main()