def ProcessEditDecision(tmpFilePath, edit, width, height):
"""\
Prefab.
Applies an edit decision - reading in the relevant video frames and applying
the reframing. Outputs the reframed video frames out of the "outbox" outbox.
Arguments:
- tmpFilePath -- temp directory into which video frames have been saved
- edit -- the edit instruction (dictionary containing: "start","end","left","top","right","bottom")
- width -- width (in pixels) for output video frames
- height -- height (in pixels) for output video frames
Inboxes:
- "inbox" -- NOT USED
- "control" -- Shutdown signalling
Outboxes:
- "outbox" -- NOT USED
- "signal" -- Shutdown signalling
"""
print " Video segment: ", edit
filenames = [
tmpFilePath + "%08d.yuv" % i
for i in range(edit["start"], edit["end"] + 1)
]
newsize = (width, height)
cropbounds = (edit["left"], edit["top"], edit["right"], edit["bottom"])
return Graphline( \
FILENAMES = ForwardIteratingChooser(filenames),
FRAME_LOADER = Carousel( lambda filename :
Pipeline(
2, MaxSpeedFileReader(filename,chunksize=1024*1024),
2, YUV4MPEGToFrame(),
),
make1stRequest=False ),
REFRAMING = Pipeline( 2, ToRGB_interleaved(),
2, CropAndScale(newsize, cropbounds),
2, ToYUV420_planar(),
),
linkages = {
("FRAME_LOADER", "requestNext") : ("FILENAMES", "inbox"),
("FILENAMES", "outbox") : ("FRAME_LOADER", "next"),
("FRAME_LOADER", "outbox") : ("REFRAMING", "inbox"),
("REFRAMING", "outbox") : ("", "outbox"),
("FILENAMES", "signal") : ("FRAME_LOADER", "control"),
("FRAME_LOADER", "signal") : ("REFRAMING", "control"),
("REFRAMING", "signal") : ("", "signal"),
},
boxsizes = {
},
)
def player(*argv, **argd):
screen = VideoSurface()
screen_in_scene = PygameWrapper(wrap=screen, position=(0, 0,-8), rotation=(-30,15,3)).activate()
i1 = MatchedTranslationInteractor(target=screen_in_scene).activate()
return Pipeline(
DiracDecoder(),
ToRGB_interleaved(),
screen,
)
# override pygame display service
ogl_display = OpenGLDisplay.getDisplayService(fullscreen=True)
PygameDisplay.setDisplayService(ogl_display[0])
READER = Textbox(size=(400, 300), text_height=30).activate()
WRITER = TextDisplayer(size=(400, 300), text_height=30).activate()
SCREEN = VideoSurface().activate()
Pipeline(
ReadFileAdaptor("TestMaterial/TrainWindow.drc",
readmode="bitrate",
bitrate=1000000),
DiracDecoder(),
MessageRateLimit(10),
ToRGB_interleaved(),
SCREEN,
).activate()
R_ = PygameWrapper(wrap=READER, position=(-2, -2, -10),
rotation=(20, 10, 0)).activate()
W_ = PygameWrapper(wrap=WRITER, position=(2, 2, -10),
rotation=(20, 10, 0)).activate()
S_ = PygameWrapper(wrap=SCREEN, position=(-2, 2, -10),
rotation=(20, 10, 0)).activate()
i1 = MatchedTranslationInteractor(target=R_).activate()
i2 = MatchedTranslationInteractor(target=W_).activate()
i3 = MatchedTranslationInteractor(target=S_).activate()
def player(*argv, **argd):
return Pipeline(
DiracDecoder(),
ToRGB_interleaved(),
VideoSurface(),
)