2 Copyright 2004-2005 Chris Tallon
4 This file is part of VOMP.
6 VOMP is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 VOMP is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with VOMP; if not, write to the Free Software
18 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
26 #include "draintarget.h"
36 class Video: public DrainTarget
41 static Video* getInstance();
43 virtual int init(UCHAR format)=0;
44 virtual int shutdown()=0;
45 virtual int setFormat(UCHAR format)=0;
46 virtual int setConnection(UCHAR connection)=0;
47 virtual int setAspectRatio(UCHAR aspectRatio)=0; // This one does the pin 8 scart widescreen switching
48 virtual int setMode(UCHAR mode)=0;
49 virtual int setTVsize(UCHAR size)=0; // Is the TV a widescreen?
50 virtual int setDefaultAspect()=0;
51 virtual int setSource()=0;
52 virtual int setPosition(int x, int y)=0;
56 virtual int pause()=0;
57 virtual int unPause()=0;
58 virtual int fastForward()=0;
59 virtual int unFastForward()=0;
60 virtual int reset()=0;
61 virtual int blank()=0;
62 virtual int signalOn()=0;
63 virtual int signalOff()=0;
64 virtual int attachFrameBuffer()=0; // What does this do?
65 virtual ULONG timecodeToFrameNumber(ULLONG timecode)=0;
66 virtual ULLONG getCurrentTimestamp()=0;
67 virtual void displayIFrame(const UCHAR* buffer, UINT length)=0;
69 virtual void turnVideoOn(){};
70 virtual void turnVideoOff(){};
71 virtual ULLONG frameNumberToTimecode(ULONG timecode) { return 0; };
74 virtual int test() { return 0; }
75 virtual int test2() { return 0; }
78 int getMode() { return mode; }
79 UCHAR getFormat() { return format; }
80 UINT getScreenWidth() { return screenWidth; }
81 UINT getScreenHeight() { return screenHeight; }
82 UCHAR getTVsize() { return tvsize; }
84 hmsf framesToHMSF(ULONG frames);
87 // Video formats - AV_SET_VID_DISP_FMT
88 const static UCHAR NTSC = 0;
89 const static UCHAR PAL = 1;
91 // Video connections - AV_SET_VID_OUTPUT
92 const static UCHAR COMPOSITERGB = 1;
93 const static UCHAR SVIDEO = 2;
95 // Video aspect ratios - AV_SET_VID_RATIO
96 const static UCHAR ASPECT4X3 = 0;
97 const static UCHAR ASPECT16X9 = 1;
99 // Video modes - AV_SET_VID_MODE
100 const static UCHAR NORMAL = 0;
101 const static UCHAR LETTERBOX = 1;
103 Actual Source Aspect Aspect IOCTL Mode IOCTL MODE A MODE B
105 4:3 4:3 NORMAL fullframe43 fullframe43
106 4:3 16:9 NORMAL fullframe43 fullframe43 -- invalid?
107 4:3 4:3 LETTERBOX fullframe43 fullframe43
108 4:3 16:9 LETTERBOX fullframe43 fullframe43 -- invalid?
109 16:9 4:3 NORMAL chop sides fullframe169
110 16:9 16:9 NORMAL chop sides fullframe169
111 16:9 4:3 LETTERBOX letterbox letterbox
112 16:9 16:9 LETTERBOX chop sides fullframe169
116 1. There are two chip modes - accessible by reopening the fd
117 2. The video chip knows the aspect ratio purely from the incoming MPEG
118 3. MODE A is for 4:3 TVs, MODE B is for 16:9 TVs
120 To switch to MODE A, set the aspect ioctl to 4:3 and reopen the FD.
121 To switch to MODE B, set the aspect ioctl to 16:9 and reopen the FD.
124 const static UCHAR UNKNOWN2 = 2;
125 const static UCHAR QUARTER = 3;
126 const static UCHAR EIGHTH = 4;
127 const static UCHAR ZOOM = 5;
128 const static UCHAR UNKNOWN6 = 6;
131 static Video* instance;