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wfd-source: Support wfd-idr-request

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This commit is contained in:
Andrew Zaborowski 2020-07-31 03:31:33 +02:00 committed by Denis Kenzior
parent bfa670d4ef
commit 8016658618
1 changed files with 28 additions and 10 deletions
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38
test/wfd-source
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@ -21,7 +21,7 @@ import gi
gi.require_version('GLib', '2.0')
gi.require_version('Gst', '1.0')
gi.require_version('Gtk', '3.0')
from gi.repository import GLib, Gst, Gtk, Gdk, Pango
from gi.repository import GLib, Gst, Gtk, Gdk, Pango, GObject
class WFDRTSPServer:
class RTSPException(Exception):
@ -325,7 +325,21 @@ class WFDRTSPServer:
elif method == 'TEARDOWN' and target != self.session_stream_url:
self.error('Unknown target "' + target + '" in TEARDOWN request')
elif method == 'SET_PARAMETER':
pass
params = []
names = []
for line in content.split(b'\r\n'):
param = (line.decode('utf8').strip(), None)
if not param[0]:
continue
if ':' in param[0]:
k, v = param[0].split(':', 1)
param = (k.strip(), v.strip())
if param[0] in names:
self.error('Duplicate key "' + param[0] + '" in SET_PARAMETER response')
names.append(param[0])
params.append(param)
self.last_params = params
def request(self, method, target, require=[], params=[]):
content = ''
@ -437,17 +451,17 @@ class WFDRTSPServer:
self.debug('Gstreamer message of type ' + str(t) + ' for ' + message.src.name + ': ' + str(message))
return True
def gst_force_keyframe(self):
def force_keyframe(self):
enc = self.rtp_pipeline.get_by_name('videnc')
sink = enc.get_static_pad('sink')
timestamp = Gst.CLOCK_TIME_NONE # can/should we use sink.query_position?
s = Gst.Structure('GstForceKeyUnit')
s.set_value('timestamp', timestamp, 'uint64')
s.set_value('stream-time', timestamp, 'uint64')
s.set_value('all-headers', True)
s.set_value('timestamp', GObject.Value(GObject.TYPE_UINT64, timestamp))
s.set_value('stream-time', GObject.Value(GObject.TYPE_UINT64, timestamp))
s.set_value('all-headers', GObject.Value(GObject.TYPE_BOOLEAN, True))
# TODO: can we also send this event directly to the element instead of the pad?
sink.send_event(Gst.event_new_custom(Gst.EVENT_CUSTOM_DOWNSTREAM, s))
sink.send_event(Gst.Event.new_custom(Gst.EventType.CUSTOM_DOWNSTREAM, s))
def rtsp_keepalive_timeout_cb(self):
try:
@ -585,9 +599,13 @@ class WFDRTSPServer:
self.response()
return
if method == 'SET_PARAMETER':
# TODO: parse the stuff, on 'wfd-idr-request\r\n' (no semicolon) call the following:
self.gst_force_keyframe()
self.response()
self.validate_msg(method, 'SET_PARAMETER', status, reason, headers, target, content)
for k, v in self.last_params:
if k == 'wfd_idr_request' and v is None:
self.force_keyframe()
self.response()
else:
self.error('Unknown request "' + k + '" with value ' + repr(v))
return
if method == 'TEARDOWN':
# The spec suggests a more graceful teardown but we just close the connection