def __init__(self, name, experiment, string=None):
"""
Initialize module. Link to the video can already be specified but this is optional
vfile: The path to the file to be played
screensize: An optional tuple with the preferred (w,h) of the output frame. Otherwise, the video is played in its original size
"""
# The version of the plug-in
self.version = 0.11
self.mp = pyffmpeg.FFMpegReader(0, False)
self.videoTrack = None
self.audioTrack = None
self.audioBuffer = []
self.bufferedAudio = True
self.file_loaded = False
self.frameTime = 0
self.paused = False
self.item_type = "media_player"
self.description = "Plays a video from file"
self.duration = "keypress"
self.fullscreen = "yes"
self.playaudio = "yes"
self.audioCorrection = 150000
self.video_src = ""
self.sendInfoToEyelink = "yes"
self.event_handler = ""
# The parent handles the rest of the construction
item.item.__init__(self, name, experiment, string)
def get_video_dims(fname):
"""
Pull out the frame length, spatial height and spatial width of
a video file using ffmpeg.
Parameters
----------
fname : str
Path to video file to be inspected.
Returns
-------
shape : tuple
The spatiotemporal dimensions of the video
(length, height, width).
"""
try:
import pyffmpeg
except ImportError:
raise ImportError("This function requires pyffmpeg "
"<http://code.google.com/p/pyffmpeg/>")
mp = pyffmpeg.FFMpegReader()
try:
mp.open(fname)
tracks = mp.get_tracks()
for track in tracks:
if isinstance(track, pyffmpeg.VideoTrack):
break
else:
raise ValueError('no video track found')
return (track.duration(), ) + track.get_orig_size()
finally:
mp.close()
def testVideo():
mp = pf.FFMpegReader()
mp.open("test.mp4",pf.TS_VIDEO_PIL)
vt=mp.get_tracks()[0] # video track
for k in xrange(0,10):
image = vt.get_next_frame()
image.save("test_%(number)03d.png" % {'number':k}, "PNG")
def add_vid_info(clips):
for name, clip in clips.iteritems():
# set the resolution and duration by opening the file with ffmpeg
reader = pyffmpeg.FFMpegReader(False)
reader.open(clip['path'], {
'video1':(0, -1, {
'dest_height':-1,
'dest_width':-1,
'outputmode':pyffmpeg.OUTPUTMODE_NUMPY})})#, pyffmpeg.TS_VIDEO_)
video_track = reader.get_tracks()[0]
clip['duration'] = video_track.duration()
clip['resolution'] = video_track.get_size()
def __init__(self, name, experiment, string=None):
"""
Constructor. Link to the video can already be specified but this is optional
Arguments:
name -- the name of the item
experiment -- the opensesame experiment
Keyword arguments:
string -- a definition string for the item (Default = None)
"""
# The version of the plug-in
self.version = 0.14
self.mp = pyffmpeg.FFMpegReader(0, False)
self.videoTrack = None
self.audioTrack = None
self.audioBuffer = []
self.bufferedAudio = True
self.file_loaded = False
self.frameTime = 0
self.paused = False
self.item_type = "media_player"
self.description = "Plays a video from file"
self.duration = "keypress"
self.fullscreen = "yes"
self.playaudio = "yes"
self.audioCorrection = 150000
self.video_src = ""
self.sendInfoToEyelink = "yes"
self.event_handler = ""
self.frameNo = 0
self.event_handler_trigger = "on keypress"
# The parent handles the rest of the construction
item.item.__init__(self, name, experiment, string)
# Indicate function for clean up that is run after the experiment finishes
self.experiment.cleanup_functions.append(self.closeStreams)
tracks[1].set_observer(lambda x:ao.write(x[0].data)) tracks[0].seek_to_seconds(10) ao.channels(tracks[1].get_channels()) ## play the movie ! mp.run() ########NEW FILE######## __FILENAME__ = seek_test # -*- coding: utf-8 -*- import sys import pyffmpeg reader = pyffmpeg.FFMpegReader(False) reader.open(sys.argv[1],pyffmpeg.TS_VIDEO_PIL) vt=reader.get_tracks()[0] print dir(vt) nframes=31 try: rdrdur=reader.duration() rdrdurtime=reader.duration_time() except: print "no duration information in reader" try: cdcdur=vt.duration() cdcdurtime=vt.duration_time() mt=max(cdcdurtime,rdrdurtime) print rdrdurtime, cdcdurtime print "FPS=",vt.get_fps()
