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vidref playback smoothness, autodelete short clips, manual-delete clips, vidref keyboard shortcuts Ignore-this: 6daccf686fd66561029f3252ed4dbafd
author Drew Perttula <drewp@bigasterisk.com>
date Thu, 06 Jun 2019 02:28:28 +0000
parents 9f0f2b39ad95
children 9ee42b88299b
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1 #!bin/python
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2 """
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3 Camera images of the stage. View live on a web page and also save
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4 them to disk. Retrieve images based on the song and time that was
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5 playing when they were taken. Also, save snapshot images to a place
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6 they can be used again as thumbnails of effects.
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7
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8 bin/vidref main
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9 light9/vidref/videorecorder.py capture frames and save them
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10 light9/vidref/replay.py backend for vidref.js playback element- figures out which frames go with the current song and time
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11 light9/vidref/index.html web ui for watching current stage and song playback
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12 light9/vidref/setup.html web ui for setup of camera params and frame crop
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13 light9/web/light9-vidref-live.js LitElement for live video frames
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14 light9/web/light9-vidref-playback.js LitElement for video playback
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15
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16 """
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17 from run_local import log
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18
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19 from twisted.internet import reactor, defer
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20
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21 import logging, optparse, json, base64, os, glob
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22 import cyclone.web, cyclone.httpclient, cyclone.websocket
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23 from light9 import networking, showconfig
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24 from light9.vidref import videorecorder
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25 from rdflib import URIRef
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26 from light9.newtypes import Song
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27 from rdfdb.syncedgraph import SyncedGraph
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28 from cycloneerr import PrettyErrorHandler
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29 from typing import cast
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30
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31 parser = optparse.OptionParser()
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32 parser.add_option("-v", "--verbose", action="store_true", help="logging.DEBUG")
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33 (options, args) = parser.parse_args()
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34
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35 log.setLevel(logging.DEBUG if options.verbose else logging.INFO)
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36
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37
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38 class Snapshot(cyclone.web.RequestHandler):
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39
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40 @defer.inlineCallbacks
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41 def post(self):
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42 # save next pic
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43 # return /snapshot/path
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44 try:
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45 snapshotDir = 'todo'
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46 outputFilename = yield self.settings.gui.snapshot()
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47
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48 assert outputFilename.startswith(snapshotDir)
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49 out = networking.vidref.path(
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50 "snapshot/%s" % outputFilename[len(snapshotDir):].lstrip('/'))
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51
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52 self.write(json.dumps({'snapshot': out}))
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53 self.set_header("Location", out)
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54 self.set_status(303)
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55 except Exception:
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56 import traceback
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57 traceback.print_exc()
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58 raise
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59
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60
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61 pipeline = videorecorder.GstSource(
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62 '/dev/v4l/by-id/usb-Bison_HD_Webcam_200901010001-video-index0'
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63 # '/dev/v4l/by-id/usb-Generic_FULL_HD_1080P_Webcam_200901010001-video-index0'
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64 )
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66
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67 class Live(cyclone.websocket.WebSocketHandler):
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68
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69 def connectionMade(self, *args, **kwargs):
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70 pipeline.liveImages.subscribe(on_next=self.onFrame)
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71
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72 def connectionLost(self, reason):
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73 0 #self.subj.dispose()
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74
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75 def onFrame(self, cf: videorecorder.CaptureFrame):
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76 if cf is None: return
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77
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78 self.sendMessage(
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79 json.dumps({
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80 'jpeg': base64.b64encode(cf.asJpeg()).decode('ascii'),
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81 'description': f't={cf.t}',
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82 }))
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83
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84
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85 class SnapshotPic(cyclone.web.StaticFileHandler):
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86 pass
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87
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88
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89 class Time(cyclone.web.RequestHandler):
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90
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91 def put(self):
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92 body = json.loads(self.request.body)
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93 t = body['t']
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94 source = body['source']
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95 self.settings.gui.incomingTime(t, source)
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96 self.set_status(202)
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97
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98
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99
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100 class Clips(PrettyErrorHandler, cyclone.web.RequestHandler):
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101
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102 def delete(self):
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103 clip = URIRef(self.get_argument('uri'))
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104 videorecorder.deleteClip(clip)
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105
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106 class ReplayMap(PrettyErrorHandler, cyclone.web.RequestHandler):
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107
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108 def get(self):
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109 song = Song(self.get_argument('song'))
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110 clips = []
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111 for vid in glob.glob(os.path.join(videorecorder.songDir(song),
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112 b'*.mp4')):
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113 pts = []
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114 for line in open(vid.replace(b'.mp4', b'.timing'), 'rb'):
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115 _v, vt, _eq, _song, st = line.split()
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116 pts.append([float(st), float(vt)])
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117
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118 url = vid[len(os.path.dirname(os.path.dirname(showconfig.root()))
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119 ):].decode('ascii')
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120
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121 clips.append({
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122 'uri': videorecorder.takeUri(vid),
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123 'videoUrl': url,
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124 'songToVideo': pts
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125 })
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126
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127 clips.sort(key=lambda c: len(cast(list, c['songToVideo'])))
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128 clips = clips[-3:]
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129 clips.sort(key=lambda c: c['uri'], reverse=True)
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130
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131 ret = json.dumps(clips)
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132 log.info('replayMap had %s videos; json is %s bytes', len(clips),
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133 len(ret))
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134 self.write(ret)
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135
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136
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137 graph = SyncedGraph(networking.rdfdb.url, "vidref")
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138 outVideos = videorecorder.FramesToVideoFiles(
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139 pipeline.liveImages, os.path.join(showconfig.root(), b'video'))
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140
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141 port = networking.vidref.port
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142 reactor.listenTCP(
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143 port,
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144 cyclone.web.Application(
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145 handlers=[
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146 (r'/()', cyclone.web.StaticFileHandler, {
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147 'path': 'light9/vidref',
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148 'default_filename': 'index.html'
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149 }),
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150 (r'/setup/()', cyclone.web.StaticFileHandler, {
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151 'path': 'light9/vidref',
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152 'default_filename': 'setup.html'
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153 }),
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154 (r'/live', Live),
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155 (r'/clips', Clips),
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156 (r'/replayMap', ReplayMap),
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157 (r'/snapshot', Snapshot),
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158 (r'/snapshot/(.*)', SnapshotPic, {
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159 "path": 'todo',
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160 }),
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161 (r'/time', Time),
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162 ],
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163 debug=True,
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164 ))
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165 log.info("serving on %s" % port)
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166
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167 reactor.run()