Mercurial > hg > index.fcgi > dvdnav-rip > dvdnav-rip-1pba

annotate menus.c @ 4:3d971e53bcd5

find changesets by author, revision, files, or words in the commit message
enable large file support in Makefile
author paulo@thepaulopc
date Fri, 13 Nov 2009 01:01:20 -0800
parents 399518436fcf
children ec2f201219ff
rev   line source
paulo@0 1 /*
paulo@0 2 * Copyright (C) 2003 by the libdvdnav project
paulo@0 3 *
paulo@0 4 * This file is part of libdvdnav, a DVD navigation library.
paulo@0 5 *
paulo@0 6 * libdvdnav is free software; you can redistribute it and/or modify
paulo@0 7 * it under the terms of the GNU General Public License as published by
paulo@0 8 * the Free Software Foundation; either version 2 of the License, or
paulo@0 9 * (at your option) any later version.
paulo@0 10 *
paulo@0 11 * libdvdnav is distributed in the hope that it will be useful,
paulo@0 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
paulo@0 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
paulo@0 14 * GNU General Public License for more details.
paulo@0 15 *
paulo@0 16 * You should have received a copy of the GNU General Public License
paulo@0 17 * along with this program; if not, write to the Free Software
paulo@0 18 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
paulo@0 19 *
paulo@0 20 * $Id: menus.c 1135 2008-09-06 21:55:51Z rathann $
paulo@0 21 *
paulo@0 22 */
paulo@0 23
paulo@0 24 #include <stdio.h>
paulo@0 25 #include <unistd.h>
paulo@0 26 #include <inttypes.h>
paulo@0 27 #include <sys/types.h>
paulo@0 28 #include <sys/stat.h>
paulo@0 29 #include <fcntl.h>
paulo@0 30 #include "dvd_types.h"
paulo@0 31 #include <dvdread/dvd_reader.h>
paulo@0 32 #include <dvdread/nav_types.h>
paulo@0 33 #include <dvdread/ifo_types.h> /* For vm_cmd_t */
paulo@0 34 #include "dvdnav.h"
paulo@0 35 #include "dvdnav_events.h"
paulo@0 36
paulo@0 37 /* shall we use libdvdnav's read ahead cache? */
paulo@0 38 #define DVD_READ_CACHE 1
paulo@0 39
paulo@0 40 /* which is the default language for menus/audio/subpictures? */
paulo@0 41 #define DVD_LANGUAGE "en"
paulo@0 42
paulo@0 43 #ifdef WIN32
paulo@0 44 #define S_IRWXG 0
paulo@0 45 #endif
paulo@0 46
paulo@0 47 int main(int argc, char **argv) {
paulo@2 48 dvdnav_t *dvdnav;
paulo@2 49 uint8_t mem[DVD_VIDEO_LB_LEN];
paulo@2 50 int finished = 0;
paulo@2 51 int output_fd = 0;
paulo@2 52 int dump = 0, tt_dump = 0, tt_skip = 0;
paulo@2 53
paulo@2 54 /* open dvdnav handle */
paulo@2 55 printf("Opening DVD...\n");
paulo@2 56 if (dvdnav_open(&dvdnav, "/dev/dvd") != DVDNAV_STATUS_OK) {
paulo@2 57 printf("Error on dvdnav_open\n");
paulo@2 58 return 1;
paulo@2 59 }
paulo@2 60
paulo@2 61 /* set read ahead cache usage */
paulo@2 62 if (dvdnav_set_readahead_flag(dvdnav, DVD_READ_CACHE) != DVDNAV_STATUS_OK) {
paulo@2 63 printf("Error on dvdnav_set_readahead_flag: %s\n", dvdnav_err_to_string(dvdnav));
paulo@2 64 return 2;
paulo@2 65 }
paulo@2 66
paulo@2 67 /* set the language */
paulo@2 68 if (dvdnav_menu_language_select(dvdnav, DVD_LANGUAGE) != DVDNAV_STATUS_OK ||
paulo@2 69 dvdnav_audio_language_select(dvdnav, DVD_LANGUAGE) != DVDNAV_STATUS_OK ||
paulo@2 70 dvdnav_spu_language_select(dvdnav, DVD_LANGUAGE) != DVDNAV_STATUS_OK) {
paulo@2 71 printf("Error on setting languages: %s\n", dvdnav_err_to_string(dvdnav));
paulo@2 72 return 2;
paulo@2 73 }
paulo@2 74
paulo@2 75 /* set the PGC positioning flag to have position information relatively to the
paulo@2 76 * whole feature instead of just relatively to the current chapter */
paulo@2 77 if (dvdnav_set_PGC_positioning_flag(dvdnav, 1) != DVDNAV_STATUS_OK) {
paulo@2 78 printf("Error on dvdnav_set_PGC_positioning_flag: %s\n", dvdnav_err_to_string(dvdnav));
paulo@2 79 return 2;
paulo@2 80 }
paulo@2 81
paulo@2 82
paulo@2 83 /* the read loop which regularly calls dvdnav_get_next_block
paulo@2 84 * and handles the returned events */
paulo@2 85 printf("Reading...\n");
paulo@2 86 while (!finished) {
paulo@2 87 int result, event, len;
paulo@2 88 uint8_t *buf = mem;
paulo@2 89
paulo@2 90 /* the main reading function */
paulo@0 91 #if DVD_READ_CACHE
paulo@2 92 result = dvdnav_get_next_cache_block(dvdnav, &buf, &event, &len);
paulo@0 93 #else
paulo@2 94 result = dvdnav_get_next_block(dvdnav, buf, &event, &len);
paulo@0 95 #endif
paulo@0 96
paulo@2 97 if (result == DVDNAV_STATUS_ERR) {
paulo@2 98 printf("Error getting next block: %s\n", dvdnav_err_to_string(dvdnav));
paulo@2 99 return 3;
paulo@2 100 }
paulo@2 101
paulo@2 102 switch (event) {
paulo@2 103 case DVDNAV_BLOCK_OK:
paulo@2 104 /* We have received a regular block of the currently playing MPEG stream.
paulo@2 105 * A real player application would now pass this block through demuxing
paulo@2 106 * and decoding. We simply write it to disc here. */
paulo@2 107
paulo@2 108 if (!output_fd && (dump || tt_dump)) {
paulo@2 109 printf("Opening output...\n");
paulo@2 110 output_fd = open("libdvdnav.mpg", O_CREAT | O_WRONLY | O_APPEND, S_IRWXU | S_IRWXG);
paulo@2 111 if (output_fd == -1) {
paulo@2 112 printf("Error opening output\n");
paulo@2 113 return 4;
paulo@2 114 }
paulo@2 115 }
paulo@0 116
paulo@2 117 if (dump || tt_dump)
paulo@2 118 write(output_fd, buf, len);
paulo@0 119
paulo@2 120 break;
paulo@2 121 case DVDNAV_NOP:
paulo@2 122 /* Nothing to do here. */
paulo@2 123 break;
paulo@2 124 case DVDNAV_STILL_FRAME:
paulo@2 125 /* We have reached a still frame. A real player application would wait
paulo@2 126 * the amount of time specified by the still's length while still handling
paulo@2 127 * user input to make menus and other interactive stills work.
paulo@2 128 * A length of 0xff means an indefinite still which has to be skipped
paulo@2 129 * indirectly by some user interaction. */
paulo@3 130 {
paulo@3 131 dvdnav_still_event_t *still_event = (dvdnav_still_event_t *)buf;
paulo@3 132 if (still_event->length < 0xff)
paulo@3 133 printf("Skipping %d seconds of still frame\n", still_event->length);
paulo@3 134 else
paulo@3 135 printf("Skipping indefinite length still frame\n");
paulo@3 136 dvdnav_still_skip(dvdnav);
paulo@3 137 }
paulo@2 138 break;
paulo@2 139 case DVDNAV_WAIT:
paulo@2 140 /* We have reached a point in DVD playback, where timing is critical.
paulo@2 141 * Player application with internal fifos can introduce state
paulo@2 142 * inconsistencies, because libdvdnav is always the fifo's length
paulo@2 143 * ahead in the stream compared to what the application sees.
paulo@2 144 * Such applications should wait until their fifos are empty
paulo@2 145 * when they receive this type of event. */
paulo@2 146 printf("Skipping wait condition\n");
paulo@2 147 dvdnav_wait_skip(dvdnav);
paulo@2 148 break;
paulo@2 149 case DVDNAV_SPU_CLUT_CHANGE:
paulo@2 150 /* Player applications should pass the new colour lookup table to their
paulo@2 151 * SPU decoder */
paulo@2 152 break;
paulo@2 153 case DVDNAV_SPU_STREAM_CHANGE:
paulo@2 154 /* Player applications should inform their SPU decoder to switch channels */
paulo@2 155 break;
paulo@2 156 case DVDNAV_AUDIO_STREAM_CHANGE:
paulo@2 157 /* Player applications should inform their audio decoder to switch channels */
paulo@2 158 break;
paulo@2 159 case DVDNAV_HIGHLIGHT:
paulo@2 160 /* Player applications should inform their overlay engine to highlight the
paulo@2 161 * given button */
paulo@3 162 {
paulo@3 163 dvdnav_highlight_event_t *highlight_event = (dvdnav_highlight_event_t *)buf;
paulo@3 164 printf("Selected button %d\n", highlight_event->buttonN);
paulo@3 165 }
paulo@2 166 break;
paulo@2 167 case DVDNAV_VTS_CHANGE:
paulo@2 168 /* Some status information like video aspect and video scale permissions do
paulo@2 169 * not change inside a VTS. Therefore this event can be used to query such
paulo@2 170 * information only when necessary and update the decoding/displaying
paulo@2 171 * accordingly. */
paulo@2 172 break;
paulo@2 173 case DVDNAV_CELL_CHANGE:
paulo@2 174 /* Some status information like the current Title and Part numbers do not
paulo@2 175 * change inside a cell. Therefore this event can be used to query such
paulo@2 176 * information only when necessary and update the decoding/displaying
paulo@2 177 * accordingly. */
paulo@2 178 {
paulo@2 179 int32_t tt = 0, ptt = 0;
paulo@2 180 uint32_t pos, len;
paulo@2 181 char input = '\0';
paulo@2 182
paulo@2 183 dvdnav_current_title_info(dvdnav, &tt, &ptt);
paulo@2 184 dvdnav_get_position(dvdnav, &pos, &len);
paulo@2 185 printf("Cell change: Title %d, Chapter %d\n", tt, ptt);
paulo@2 186 printf("At position %.0f%% inside the feature\n", 100 * (double)pos / (double)len);
paulo@2 187
paulo@2 188 dump = 0;
paulo@2 189 if (tt_dump && tt != tt_dump)
paulo@2 190 tt_dump = 0;
paulo@2 191
paulo@2 192 if (tt_skip && tt != tt_skip)
paulo@2 193 tt_skip = 0;
paulo@2 194
paulo@2 195 if (output_fd && !tt_dump) {
paulo@2 196 printf("Closing output...\n");
paulo@2 197 output_fd = close(output_fd);
paulo@2 198 }
paulo@2 199
paulo@2 200 if (!dump && !tt_dump && !tt_skip) {
paulo@2 201 fflush(stdin);
paulo@2 202 while ((input != 'a') && (input != 's') && (input != 'q') && (input != 't') && (input != 'l')) {
paulo@2 203 printf("(a)ppend cell to output\n(s)kip cell\nappend until end of (t)itle\nskip tit(l)e\n(q)uit\n");
paulo@2 204 scanf("%c", &input);
paulo@2 205 }
paulo@2 206
paulo@2 207 switch (input) {
paulo@2 208 case 'a':
paulo@2 209 dump = 1;
paulo@2 210 break;
paulo@2 211 case 't':
paulo@2 212 tt_dump = tt;
paulo@2 213 break;
paulo@2 214 case 'l':
paulo@2 215 tt_skip = tt;
paulo@2 216 break;
paulo@2 217 case 'q':
paulo@2 218 finished = 1;
paulo@2 219 }
paulo@2 220 }
paulo@2 221 }
paulo@2 222 break;
paulo@2 223 case DVDNAV_NAV_PACKET:
paulo@2 224 /* A NAV packet provides PTS discontinuity information, angle linking information and
paulo@2 225 * button definitions for DVD menus. Angles are handled completely inside libdvdnav.
paulo@2 226 * For the menus to work, the NAV packet information has to be passed to the overlay
paulo@2 227 * engine of the player so that it knows the dimensions of the button areas. */
paulo@2 228 {
paulo@2 229 pci_t *pci;
paulo@2 230
paulo@2 231 /* Applications with fifos should not use these functions to retrieve NAV packets,
paulo@2 232 * they should implement their own NAV handling, because the packet you get from these
paulo@2 233 * functions will already be ahead in the stream which can cause state inconsistencies.
paulo@2 234 * Applications with fifos should therefore pass the NAV packet through the fifo
paulo@2 235 * and decoding pipeline just like any other data. */
paulo@2 236 pci = dvdnav_get_current_nav_pci(dvdnav);
paulo@2 237 dvdnav_get_current_nav_dsi(dvdnav);
paulo@2 238
paulo@2 239 if(pci->hli.hl_gi.btn_ns > 0) {
paulo@2 240 int button;
paulo@2 241
paulo@2 242 printf("Found %i DVD menu buttons...\n", pci->hli.hl_gi.btn_ns);
paulo@2 243
paulo@2 244 for (button = 0; button < pci->hli.hl_gi.btn_ns; button++) {
paulo@2 245 btni_t *btni = &(pci->hli.btnit[button]);
paulo@2 246 printf("Button %i top-left @ (%i,%i), bottom-right @ (%i,%i)\n",
paulo@2 247 button + 1, btni->x_start, btni->y_start,
paulo@2 248 btni->x_end, btni->y_end);
paulo@2 249 }
paulo@2 250
paulo@2 251 button = 0;
paulo@2 252 while ((button <= 0) || (button > pci->hli.hl_gi.btn_ns)) {
paulo@2 253 printf("Which button (1 to %i): ", pci->hli.hl_gi.btn_ns);
paulo@2 254 scanf("%i", &button);
paulo@2 255 }
paulo@2 256
paulo@2 257 printf("Selecting button %i...\n", button);
paulo@2 258 /* This is the point where applications with fifos have to hand in a NAV packet
paulo@2 259 * which has traveled through the fifos. See the notes above. */
paulo@2 260 dvdnav_button_select_and_activate(dvdnav, pci, button);
paulo@2 261 }
paulo@2 262 }
paulo@2 263 break;
paulo@2 264 case DVDNAV_HOP_CHANNEL:
paulo@2 265 /* This event is issued whenever a non-seamless operation has been executed.
paulo@2 266 * Applications with fifos should drop the fifos content to speed up responsiveness. */
paulo@2 267 break;
paulo@2 268 case DVDNAV_STOP:
paulo@2 269 /* Playback should end here. */
paulo@2 270 finished = 1;
paulo@2 271 break;
paulo@2 272 default:
paulo@2 273 printf("Unknown event (%i)\n", event);
paulo@2 274 finished = 1;
paulo@2 275 break;
paulo@2 276 }
paulo@2 277 #if DVD_READ_CACHE
paulo@2 278 dvdnav_free_cache_block(dvdnav, buf);
paulo@2 279 #endif
paulo@0 280 }
paulo@2 281
paulo@2 282 /* destroy dvdnav handle */
paulo@2 283 if (dvdnav_close(dvdnav) != DVDNAV_STATUS_OK) {
paulo@2 284 printf("Error on dvdnav_close: %s\n", dvdnav_err_to_string(dvdnav));
paulo@2 285 return 5;
paulo@1 286 }
paulo@2 287 close(output_fd);
paulo@2 288
paulo@2 289 return 0;
paulo@0 290 }