| Guido van Rossum | ba06615 | 1992-09-22 17:23:17 +0000 | [diff] [blame^] | 1 | # Live video output (display video on the screen, presumably from the net) |
| 2 | |
| 3 | import gl |
| 4 | from VFile import Displayer |
| 5 | |
| 6 | |
| 7 | # Video output (displayer) class. |
| 8 | |
| 9 | class LiveVideoOut: |
| 10 | |
| 11 | def init(self, wid, xywh, vw, vh): |
| 12 | ##print 'Init', wid, xywh |
| 13 | ##print 'video', vw, vw |
| 14 | self.vw = vw |
| 15 | self.vh = vh |
| 16 | self.disp = Displayer().init() |
| 17 | info = ('rgb8', vw, vh, 1, 8, 0, 0, 0, 0) |
| 18 | self.disp.setinfo(info) |
| 19 | self.wid = wid |
| 20 | oldwid = gl.winget() |
| 21 | gl.winset(wid) |
| 22 | self.disp.initcolormap() |
| 23 | self.resize(xywh) |
| 24 | gl.winset(oldwid) |
| 25 | return self |
| 26 | |
| 27 | def resize(self, (x, y, w, h)): |
| 28 | oldwid = gl.winget() |
| 29 | gl.winset(self.wid) |
| 30 | ##print 'Resize', x, y, w, h |
| 31 | gl.winposition(x, x+w-1, y, y+h-1) |
| 32 | gl.reshapeviewport() |
| 33 | if w < self.vw or h < self.vh: |
| 34 | self.toosmall = 1 |
| 35 | else: |
| 36 | self.disp.xorigin = (w-self.vw)/2 |
| 37 | self.disp.yorigin = (h-self.vh)/2 |
| 38 | self.toosmall = 0 |
| 39 | ##print 'VIDEO OFFSET:', \ |
| 40 | ## self.disp.xorigin, self.disp.yorigin |
| 41 | self.disp.clear() |
| 42 | gl.winset(oldwid) |
| 43 | |
| 44 | def putnextpacket(self, pos, data): |
| 45 | if self.toosmall: |
| 46 | return |
| 47 | oldwid = gl.winget() |
| 48 | gl.winset(self.wid) |
| 49 | nline = len(data)/self.vw |
| 50 | if nline*self.vw <> len(data): |
| 51 | print 'Incorrect-sized video fragment' |
| 52 | self.disp.showpartframe(data, None, (0, pos, self.vw, nline)) |
| 53 | gl.winset(oldwid) |
| 54 | |
| 55 | def close(self): |
| 56 | print 'Done video out' |