def play(self):
"""Play the video stimulus from the current position.
Notes
-----
When the audio from the video should be played as well, the audiosystem
has to be stopped (by calling expyriment.control.stop_audiosystem() )
BEFORE the video stimulus is preloaded! After the stimulus has been played
the audiosystem can be started again (by calling
expyriment.control.start_audiosystem() ).
When showing videos in large dimensions, and your computer is not fast
enough, frames might be dropped! When using Video.wait_frame() or
Video.wait_end(), dropped video frames will be reported and logged.
"""
if mixer.get_init() is not None:
message = "Mixer is still initialized, cannot play audio! Call \
expyriment.control.stop_audiosystem() before preloading the video."
print "Warning: ", message
if self._logging:
expyriment._active_exp._event_file_log(
"Video,warning," + message)
if not self._is_preloaded:
self.preload()
if self._logging:
expyriment._active_exp._event_file_log(
"Video,playing,{0}".format(unicode2str(self._filename)))
self._file.play()
def play(self):
"""Play the video stimulus from the current position.
Notes
-----
When the audio from the video should be played as well, the audiosystem
has to be stopped (by calling expyriment.control.stop_audiosystem() )
BEFORE the video stimulus is preloaded! After the stimulus has been played
the audiosystem can be started again (by calling
expyriment.control.start_audiosystem() ).
When showing videos in large dimensions, and your computer is not fast
enough, frames might be dropped! When using Video.wait_frame() or
Video.wait_end(), dropped video frames will be reported and logged.
"""
if mixer.get_init() is not None:
message = "Mixer is still initialized, cannot play audio! Call \
expyriment.control.stop_audiosystem() before preloading the video."
print "Warning: ", message
if self._logging:
expyriment._active_exp._event_file_log("Video,warning," +
message)
if not self._is_preloaded:
self.preload()
if self._logging:
expyriment._active_exp._event_file_log("Video,playing,{0}".format(
unicode2str(self._filename)))
self._file.play()
def play(self, loop=False, log_event_tag=None, audio=True):
"""Play the video stimulus from the current position.
Parameters
----------
loop : bool, optional
loop video playback (will be ignored when using play to unpause!)
log_event_tag : numeral or string, optional
if log_event_tag is defined and if logging is switched on for this
stimulus (default), a summary of the inter-event-intervalls are
appended at the end of the event file
audio : bool, optional
whether audio of video (if present) should be played (default=True)
Notes
-----
When the audio from the video should be played as well, the audiosystem
has to be stopped (by calling expyriment.control.stop_audiosystem() )
BEFORE the video stimulus is preloaded! After the stimulus has been
played the audiosystem can be started again (by calling
expyriment.control.start_audiosystem() ).
When showing videos in large dimensions, and your computer is not fast
enough, frames might be dropped! When using Video.wait_frame() or
Video.wait_end(), dropped video frames will be reported and logged.
"""
if self._is_paused:
if audio and not self._audio_started:
self._audio.stream.start()
self._audio_started = True
elif not audio and self._audio_started:
self._audio.stream.stop()
self._audio_started = False
self.pause()
else:
if self._backend == "pygame" and mixer.get_init() is not None:
message = "Mixer is still initialized, cannot play audio! Call \
expyriment.control.stop_audiosystem() before preloading the video."
print("Warning: ", message)
if self._logging:
_internals.active_exp._event_file_log("Video,warning," +
message)
if not self._is_preloaded:
self.preload()
if self._logging:
_internals.active_exp._event_file_log(
"Video,playing,{0}".format(self._filename),
log_level=1,
log_event_tag=log_event_tag)
if self._backend == "mediadecoder" and self._file.audioformat and audio:
self._audio.start()
self._audio_started = True
self._file.loop = loop
self._file.play()
def play(self, loop=False, log_event_tag=None, audio=True):
"""Play the video stimulus from the current position.
Parameters
----------
loop : bool, optional
loop video playback (will be ignored when using play to unpause!)
log_event_tag : numeral or string, optional
if log_event_tag is defined and if logging is switched on for this
stimulus (default), a summary of the inter-event-intervalls are
appended at the end of the event file
audio : bool, optional
whether audio of video (if present) should be played (default=True)
Note
----
When the audio from the video should be played as well, the audiosystem
has to be stopped (by calling expyriment.control.stop_audiosystem() )
BEFORE the video stimulus is preloaded! After the stimulus has been
played the audiosystem can be started again (by calling
expyriment.control.start_audiosystem() ).
When showing videos in large dimensions, and your computer is not fast
enough, frames might be dropped! When using Video.wait_frame() or
Video.wait_end(), dropped video frames will be reported and logged.
"""
if self._is_paused:
if audio and not self._audio_started:
self._audio.stream.start()
self._audio_started = True
elif not audio and self._audio_started:
self._audio.stream.stop()
self._audio_started = False
self.pause()
else:
if self._backend == "pygame" and mixer.get_init() is not None:
message = "Mixer is still initialized, cannot play audio! Call \
expyriment.control.stop_audiosystem() before preloading the video."
print("Warning: ", message)
if self._logging:
_internals.active_exp._event_file_log(
"Video,warning," + message)
if not self._is_preloaded:
self.preload()
if self._logging:
_internals.active_exp._event_file_log(
"Video,playing,{0}".format(unicode2byte(self._filename)),
log_level=1, log_event_tag=log_event_tag)
if self._backend == "mediadecoder" and self._file.audioformat and audio:
self._audio.start()
self._audio_started = True
self._file.loop = loop
self._file.play()
def play(self):
"""Play the video stimulus from the current position."""
if mixer.get_init() is not None:
message = "Mixer is still initialized, cannot play audio! Call \
expyriment.control.stop_audiosystem() before preloading the video."
print "Warning: ", message
if self._logging:
expyriment._active_exp._event_file_log(
"Video,warning," + message)
if not self._is_preloaded:
self.preload()
if self._logging:
expyriment._active_exp._event_file_log(
"Video,playing,{0}".format(unicode2str(self._filename)))
self._file.play()