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August 13, 2018 17:08
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This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters. Learn more about bidirectional Unicode charactersOriginal file line number Diff line number Diff line change @@ -0,0 +1,48 @@ #!/usr/bin/env python3 import sys, os os.environ['GST_PLUGIN_PATH'] = '../build' import gi gi.require_version('Gst', '1.0') from gi.repository import Gst, GObject import json, pprint, pdb, urllib.request, dateutil.parser GObject.threads_init() Gst.init() mainloop = GObject.MainLoop() pipeline = Gst.parse_launch("appsrc name=indat emit-signals=true ! \ decodebin ! \ video/x-raw ! \ appsink name=outdat emit-signals=true") indat = pipeline.get_by_name('indat') outdat = pipeline.get_by_name('outdat') infile = urllib.request.urlopen("https://www.quirksmode.org/html5/videos/big_buck_bunny.webm") infile_ts = infile.info()['Last-Modified'] infile_ts = dateutil.parser.parse(infile_ts).timestamp() * Gst.SECOND def get_more_data(src, size=16384): d = infile.read(size) d = Gst.Buffer.new_wrapped(d) d.dts = infile_ts src.emit('push-buffer', d) indat.connect('need-data', get_more_data) def display_dat(snk): #pdb.set_trace() d = snk.emit('pull-sample') if type(d) == Gst.Sample: d = d.get_buffer() di = d.map(Gst.MapFlags.READ) pprint.pprint({'dts':d.dts, 'pts':d.dts, 'duration':d.duration}) return Gst.FlowReturn.OK outdat.connect('new-sample', display_dat) pipeline.set_state(Gst.State.PLAYING) mainloop.run()