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# Copyright 2016 The Chromium OS Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""An adapter to remotely access the video facade on DUT."""
import os
import tempfile
class VideoFacadeRemoteAdapter(object):
"""VideoFacadeRemoteAdapter is an adapter to remotely control DUT video.
The Autotest host object representing the remote DUT, passed to this
class on initialization, can be accessed from its _client property.
"""
def __init__(self, host, remote_facade_proxy):
"""Construct a VideoFacadeRemoteAdapter.
@param host: Host object representing a remote host.
@param remote_facade_proxy: RemoteFacadeProxy object.
"""
self._client = host
self._proxy = remote_facade_proxy
@property
def _video_proxy(self):
"""Gets the proxy to DUT video facade.
@return XML RPC proxy to DUT video facade.
"""
return self._proxy.video
def send_playback_file(self, path):
"""Copies a file to client.
The files on the client side will be deleted by VideoFacadeNative
after the test.
@param path: A path to the file.
@returns: A new path to the file on client.
"""
_, ext = os.path.splitext(path)
_, client_file_path = tempfile.mkstemp(
prefix='playback_', suffix=ext)
self._client.send_file(path, client_file_path)
return client_file_path
def prepare_playback(self, file_path, fullscreen=True):
"""Copies the html file and the video file to /tmp and load the webpage.
@param file_path: The path to the file.
@param fullscreen: Plays the video in fullscreen.
"""
client_file_path = self.send_playback_file(file_path)
self._video_proxy.prepare_playback(client_file_path, fullscreen)
def start_playback(self, blocking=False):
"""Starts video playback on the webpage.
Before calling this method, user should call prepare_playback to
put the files to /tmp and load the webpage.
@param blocking: Blocks this call until playback finishes.
"""
self._video_proxy.start_playback(blocking)
def pause_playback(self):
"""Pauses playback on the webpage."""
self._video_proxy.pause_playback()
def dropped_frame_count(self):
"""
Gets the number of dropped frames.
@returns: An integer indicates the number of dropped frame.
"""
return self._video_proxy.dropped_frame_count()
def prepare_arc_playback(self, file_path, fullscreen=True):
"""Copies the video file to be played into container.
User should call this method to put the file into container before
calling start_arc_playback.
@param file_path: Path to the file to be played on Server.
@param fullscreen: Plays the video in fullscreen.
"""
client_file_path = self.send_playback_file(file_path)
self._video_proxy.prepare_arc_playback(client_file_path, fullscreen)
def start_arc_playback(self, blocking_secs=None):
"""Starts playback through Play Video app.
Before calling this method, user should call set_arc_playback_file to
put the file into container and start the app.
@param blocking_secs: A positive number indicates the timeout to wait
for the playback is finished. Set None to make
it non-blocking.
"""
self._video_proxy.start_arc_playback(blocking_secs)
def pause_arc_playback(self):
"""Pauses playback through Play Video app."""
self._video_proxy.pause_arc_playback()
def stop_arc_playback(self):
"""Stops playback through Play Video app."""
self._video_proxy.stop_arc_playback()