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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
36 int VideoMVP::init(UCHAR tformat)
38 if (initted) return 0;
41 if ((fdVideo = open("/dev/vdec_dev", O_WRONLY)) < 0) return 0;
43 if (!setFormat(tformat)) { shutdown(); return 0; }
44 if (!setConnection(COMPOSITERGB)) { shutdown(); return 0; }
45 if (!setAspectRatio(ASPECT4X3)) { shutdown(); return 0; }
46 if (!setMode(NORMAL)) { shutdown(); return 0; }
47 if (!setSource()) { shutdown(); return 0; }
48 if (!attachFrameBuffer()) { shutdown(); return 0; }
52 if (format == PAL) setLetterboxBorder("38");
53 else setLetterboxBorder("31");
61 void VideoMVP::setLetterboxBorder(char* border)
63 FILE* fdlbox = fopen("/proc/lbox_border", "w");
65 fputs(border, fdlbox);
69 int VideoMVP::setTVsize(UCHAR ttvsize)
73 // Override the aspect ratio usage, temporarily use to set the video chip mode
74 if (!setAspectRatio(tvsize)) { shutdown(); return 0; }
76 if ((fdVideo = open("/dev/vdec_dev", O_WRONLY)) < 0) return 0;
77 if (!setSource()) { shutdown(); return 0; }
78 if (!attachFrameBuffer()) { shutdown(); return 0; }
80 // Reopening the fd causes the scart aspect line to go back to 4:3
81 // Set this again to the same as the tv screen size
82 if (!setAspectRatio(tvsize)) { shutdown(); return 0; }
84 // mode == LETTERBOX is invalid if the TV is widescreen
85 if (tvsize == ASPECT16X9) setMode(NORMAL);
90 int VideoMVP::setDefaultAspect()
92 return setAspectRatio(tvsize);
95 int VideoMVP::shutdown()
97 if (!initted) return 0;
103 int VideoMVP::checkSCART()
105 // Returns 3 for SCART Composite out
106 // Returns 3 for SCART S-Video out
107 // Returns 2 for SCART RGB out
108 // Returns 3 for SCART not plugged in
110 // So, as you can have RGB and composite out simultaneously,
111 // and it can't detect S-Video, what is the point of this?
114 if (ioctl(fdVideo, AV_CHK_SCART, &scart) != 0) return -10;
119 int VideoMVP::setFormat(UCHAR tformat)
121 if (!initted) return 0;
122 if ((tformat != PAL) && (tformat != NTSC)) return 0;
125 if (ioctl(fdVideo, AV_SET_VID_DISP_FMT, format) != 0) return 0;
141 int VideoMVP::setConnection(UCHAR tconnection)
143 if (!initted) return 0;
144 if ((tconnection != COMPOSITERGB) && (tconnection != SVIDEO)) return 0;
145 connection = tconnection;
147 if (ioctl(fdVideo, AV_SET_VID_OUTPUT, connection) != 0) return 0;
151 int VideoMVP::setAspectRatio(UCHAR taspectRatio)
153 if (!initted) return 0;
154 if ((taspectRatio != ASPECT4X3) && (taspectRatio != ASPECT16X9)) return 0;
155 aspectRatio = taspectRatio;
157 Log::getInstance()->log("Video", Log::DEBUG, "Setting aspect to %i", aspectRatio);
159 if (ioctl(fdVideo, AV_SET_VID_RATIO, aspectRatio) != 0) return 0;
163 int VideoMVP::setMode(UCHAR tmode)
165 if (!initted) return 0;
167 if ((tmode == LETTERBOX) && (tvsize == ASPECT16X9)) return 0; // invalid mode
169 if ((tmode != NORMAL) && (tmode != LETTERBOX) && (tmode != UNKNOWN2) && (tmode != QUARTER) && (tmode != EIGHTH)
170 && (tmode != ZOOM) && (tmode != UNKNOWN6)) return 0;
173 if (ioctl(fdVideo, AV_SET_VID_MODE, mode) != 0) return 0;
177 int VideoMVP::signalOff()
179 if (ioctl(fdVideo, AV_SET_VID_DENC, 0) != 0) return 0;
183 int VideoMVP::signalOn()
185 if (ioctl(fdVideo, AV_SET_VID_DENC, 1) != 0) return 0;
189 int VideoMVP::setSource()
191 if (!initted) return 0;
193 // What does this do...
194 if (ioctl(fdVideo, AV_SET_VID_SRC, 1) != 0) return 0;
198 int VideoMVP::setPosition(int x, int y)
200 if (!initted) return 0;
202 // vid_pos_regs_t pos_d;
206 vid_pos_regs_t pos_d;
208 memset(&pos_d, 0, sizeof(pos_d));
233 pos_d.y = 100; // Top left X
234 pos_d.x = 50; // Top left Y
242 if (ioctl(fdVideo, AV_SET_VID_POSITION, &pos_d) != 0) return 0;
248 if (!initted) return 0;
250 if (ioctl(fdVideo, AV_SET_VID_SYNC, 2) != 0) return 0;
256 if (!initted) return 0;
258 if (ioctl(fdVideo, AV_SET_VID_PLAY, 0) != 0) return 0;
264 if (!initted) return 0;
266 if (ioctl(fdVideo, AV_SET_VID_STOP, 0) != 0) return 0;
270 int VideoMVP::reset()
272 if (!initted) return 0;
274 if (ioctl(fdVideo, AV_SET_VID_RESET, 0x11) != 0) return 0;
278 int VideoMVP::pause()
280 if (!initted) return 0;
282 if (ioctl(fdVideo, AV_SET_VID_PAUSE, 0) != 0) return 0;
286 int VideoMVP::unPause() // FIXME get rid - same as play!!
288 if (!initted) return 0;
289 if (ioctl(fdVideo, AV_SET_VID_PLAY, 0) != 0) return 0;
293 int VideoMVP::fastForward()
295 if (!initted) return 0;
297 if (ioctl(fdVideo, AV_SET_VID_FFWD, 1) != 0) return 0;
301 int VideoMVP::unFastForward()
303 if (!initted) return 0;
305 // if (ioctl(fdVideo, AV_SET_VID_RESET, 0x11) != 0) return 0; // don't need this.
307 if (ioctl(fdVideo, AV_SET_VID_PLAY, 0) != 0) return 0;
311 int VideoMVP::attachFrameBuffer()
313 if (!initted) return 0;
315 if (ioctl(fdVideo, AV_SET_VID_FB, 0) != 0) return 0;
319 int VideoMVP::blank(void)
321 if (ioctl(fdVideo, AV_SET_VID_FB, 1) != 0) return 0;
322 if (ioctl(fdVideo, AV_SET_VID_FB, 0) != 0) return 0;
326 ULLONG VideoMVP::getCurrentTimestamp()
328 sync_data_t timestamps;
329 if (ioctl(fdVideo, AV_GET_VID_TIMESTAMPS, ×tamps) == 0)
331 // FIXME are these the right way around?
333 timestamps.stc = (timestamps.stc >> 31 ) | (timestamps.stc & 1);
334 timestamps.pts = (timestamps.pts >> 31 ) | (timestamps.pts & 1);
336 return timestamps.stc;
344 ULONG VideoMVP::timecodeToFrameNumber(ULLONG timecode)
346 if (format == PAL) return (ULONG)(((double)timecode / (double)90000) * (double)25);
347 else return (ULONG)(((double)timecode / (double)90000) * (double)30);
356 // return ioctl(fdVideo, AV_SET_VID_STC, &stc);
363 int VideoMVP::test2()
369 void VideoMVP::PrepareMediaSample(const MediaPacketList& mplist,UINT samplepos)
371 MediaPacketList::const_iterator iter = mplist.begin();
372 deliver_start = iter->pos_buffer + samplepos;
373 mediapacket_len[0] = deliver_length = iter->length;
375 while (++iter != mplist.end() &&
376 iter->pos_buffer == deliver_start + deliver_length)
378 deliver_length += iter->length;
379 mediapacket_len[deliver_count] = iter->length;
381 if (deliver_length >= WRITE_LENGTH ||
382 deliver_count == WRITE_PACKETS) break;
386 UINT VideoMVP::DeliverMediaSample(UCHAR* buffer, UINT* samplepos)
388 int written = ::write(fdVideo, buffer + deliver_start, deliver_length);
389 if (written == (int)deliver_length) { *samplepos = 0; return deliver_count;}
390 if (written <= 0) return 0;
391 // Handle a partial write. Is this possible? Should we bother?
393 while ((written -= mediapacket_len[i]) >= 0) i++;
394 *samplepos = mediapacket_len[i] + written;
398 void VideoMVP::ResetTimeOffsets()
402 bool VideoMVP::displayIFrame(const UCHAR* buffer, UINT length)
404 write(fdVideo, buffer, length);