| 1 | /* |
| 2 | * BluRay (libbluray) protocol |
| 3 | * |
| 4 | * Copyright (c) 2012 Petri Hintukainen <phintuka <at> users.sourceforge.net> |
| 5 | * |
| 6 | * This file is part of FFmpeg. |
| 7 | * |
| 8 | * FFmpeg is free software; you can redistribute it and/or |
| 9 | * modify it under the terms of the GNU Lesser General Public |
| 10 | * License as published by the Free Software Foundation; either |
| 11 | * version 2.1 of the License, or (at your option) any later version. |
| 12 | * |
| 13 | * FFmpeg is distributed in the hope that it will be useful, |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 16 | * Lesser General Public License for more details. |
| 17 | * |
| 18 | * You should have received a copy of the GNU Lesser General Public |
| 19 | * License along with FFmpeg; if not, write to the Free Software |
| 20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| 21 | */ |
| 22 | |
| 23 | #include <libbluray/bluray.h> |
| 24 | |
| 25 | #include "libavutil/avstring.h" |
| 26 | #include "libavformat/avformat.h" |
| 27 | #include "libavformat/url.h" |
| 28 | #include "libavutil/opt.h" |
| 29 | |
| 30 | #define BLURAY_PROTO_PREFIX "bluray:" |
| 31 | #define MIN_PLAYLIST_LENGTH 180 /* 3 min */ |
| 32 | |
| 33 | typedef struct { |
| 34 | const AVClass *class; |
| 35 | |
| 36 | BLURAY *bd; |
| 37 | |
| 38 | int playlist; |
| 39 | int angle; |
| 40 | int chapter; |
| 41 | /*int region;*/ |
| 42 | } BlurayContext; |
| 43 | |
| 44 | #define OFFSET(x) offsetof(BlurayContext, x) |
| 45 | static const AVOption options[] = { |
| 46 | {"playlist", "", OFFSET(playlist), AV_OPT_TYPE_INT, { .i64=-1 }, -1, 99999, AV_OPT_FLAG_DECODING_PARAM }, |
| 47 | {"angle", "", OFFSET(angle), AV_OPT_TYPE_INT, { .i64=0 }, 0, 0xfe, AV_OPT_FLAG_DECODING_PARAM }, |
| 48 | {"chapter", "", OFFSET(chapter), AV_OPT_TYPE_INT, { .i64=1 }, 1, 0xfffe, AV_OPT_FLAG_DECODING_PARAM }, |
| 49 | /*{"region", "bluray player region code (1 = region A, 2 = region B, 4 = region C)", OFFSET(region), AV_OPT_TYPE_INT, { .i64=0 }, 0, 3, AV_OPT_FLAG_DECODING_PARAM },*/ |
| 50 | {NULL} |
| 51 | }; |
| 52 | |
| 53 | static const AVClass bluray_context_class = { |
| 54 | .class_name = "bluray", |
| 55 | .item_name = av_default_item_name, |
| 56 | .option = options, |
| 57 | .version = LIBAVUTIL_VERSION_INT, |
| 58 | }; |
| 59 | |
| 60 | |
| 61 | static int check_disc_info(URLContext *h) |
| 62 | { |
| 63 | BlurayContext *bd = h->priv_data; |
| 64 | const BLURAY_DISC_INFO *disc_info; |
| 65 | |
| 66 | disc_info = bd_get_disc_info(bd->bd); |
| 67 | if (!disc_info) { |
| 68 | av_log(h, AV_LOG_ERROR, "bd_get_disc_info() failed\n"); |
| 69 | return -1; |
| 70 | } |
| 71 | |
| 72 | if (!disc_info->bluray_detected) { |
| 73 | av_log(h, AV_LOG_ERROR, "BluRay disc not detected\n"); |
| 74 | return -1; |
| 75 | } |
| 76 | |
| 77 | /* AACS */ |
| 78 | if (disc_info->aacs_detected && !disc_info->aacs_handled) { |
| 79 | if (!disc_info->libaacs_detected) { |
| 80 | av_log(h, AV_LOG_ERROR, |
| 81 | "Media stream encrypted with AACS, install and configure libaacs\n"); |
| 82 | } else { |
| 83 | av_log(h, AV_LOG_ERROR, "Your libaacs can't decrypt this media\n"); |
| 84 | } |
| 85 | return -1; |
| 86 | } |
| 87 | |
| 88 | /* BD+ */ |
| 89 | if (disc_info->bdplus_detected && !disc_info->bdplus_handled) { |
| 90 | /* |
| 91 | if (!disc_info->libbdplus_detected) { |
| 92 | av_log(h, AV_LOG_ERROR, |
| 93 | "Media stream encrypted with BD+, install and configure libbdplus"); |
| 94 | } else { |
| 95 | */ |
| 96 | av_log(h, AV_LOG_ERROR, "Unable to decrypt BD+ encrypted media\n"); |
| 97 | /*}*/ |
| 98 | return -1; |
| 99 | } |
| 100 | |
| 101 | return 0; |
| 102 | } |
| 103 | |
| 104 | static int bluray_close(URLContext *h) |
| 105 | { |
| 106 | BlurayContext *bd = h->priv_data; |
| 107 | if (bd->bd) { |
| 108 | bd_close(bd->bd); |
| 109 | } |
| 110 | |
| 111 | return 0; |
| 112 | } |
| 113 | |
| 114 | static int bluray_open(URLContext *h, const char *path, int flags) |
| 115 | { |
| 116 | BlurayContext *bd = h->priv_data; |
| 117 | int num_title_idx; |
| 118 | const char *diskname = path; |
| 119 | |
| 120 | av_strstart(path, BLURAY_PROTO_PREFIX, &diskname); |
| 121 | |
| 122 | bd->bd = bd_open(diskname, NULL); |
| 123 | if (!bd->bd) { |
| 124 | av_log(h, AV_LOG_ERROR, "bd_open() failed\n"); |
| 125 | return AVERROR(EIO); |
| 126 | } |
| 127 | |
| 128 | /* check if disc can be played */ |
| 129 | if (check_disc_info(h) < 0) { |
| 130 | return AVERROR(EIO); |
| 131 | } |
| 132 | |
| 133 | /* setup player registers */ |
| 134 | /* region code has no effect without menus |
| 135 | if (bd->region > 0 && bd->region < 5) { |
| 136 | av_log(h, AV_LOG_INFO, "setting region code to %d (%c)\n", bd->region, 'A' + (bd->region - 1)); |
| 137 | bd_set_player_setting(bd->bd, BLURAY_PLAYER_SETTING_REGION_CODE, bd->region); |
| 138 | } |
| 139 | */ |
| 140 | |
| 141 | /* load title list */ |
| 142 | num_title_idx = bd_get_titles(bd->bd, TITLES_RELEVANT, MIN_PLAYLIST_LENGTH); |
| 143 | av_log(h, AV_LOG_INFO, "%d usable playlists:\n", num_title_idx); |
| 144 | if (num_title_idx < 1) { |
| 145 | return AVERROR(EIO); |
| 146 | } |
| 147 | |
| 148 | /* if playlist was not given, select longest playlist */ |
| 149 | if (bd->playlist < 0) { |
| 150 | uint64_t duration = 0; |
| 151 | int i; |
| 152 | for (i = 0; i < num_title_idx; i++) { |
| 153 | BLURAY_TITLE_INFO *info = bd_get_title_info(bd->bd, i, 0); |
| 154 | |
| 155 | av_log(h, AV_LOG_INFO, "playlist %05d.mpls (%d:%02d:%02d)\n", |
| 156 | info->playlist, |
| 157 | ((int)(info->duration / 90000) / 3600), |
| 158 | ((int)(info->duration / 90000) % 3600) / 60, |
| 159 | ((int)(info->duration / 90000) % 60)); |
| 160 | |
| 161 | if (info->duration > duration) { |
| 162 | bd->playlist = info->playlist; |
| 163 | duration = info->duration; |
| 164 | } |
| 165 | |
| 166 | bd_free_title_info(info); |
| 167 | } |
| 168 | av_log(h, AV_LOG_INFO, "selected %05d.mpls\n", bd->playlist); |
| 169 | } |
| 170 | |
| 171 | /* select playlist */ |
| 172 | if (bd_select_playlist(bd->bd, bd->playlist) <= 0) { |
| 173 | av_log(h, AV_LOG_ERROR, "bd_select_playlist(%05d.mpls) failed\n", bd->playlist); |
| 174 | return AVERROR(EIO); |
| 175 | } |
| 176 | |
| 177 | /* select angle */ |
| 178 | if (bd->angle >= 0) { |
| 179 | bd_select_angle(bd->bd, bd->angle); |
| 180 | } |
| 181 | |
| 182 | /* select chapter */ |
| 183 | if (bd->chapter > 1) { |
| 184 | bd_seek_chapter(bd->bd, bd->chapter - 1); |
| 185 | } |
| 186 | |
| 187 | return 0; |
| 188 | } |
| 189 | |
| 190 | static int bluray_read(URLContext *h, unsigned char *buf, int size) |
| 191 | { |
| 192 | BlurayContext *bd = h->priv_data; |
| 193 | int len; |
| 194 | |
| 195 | if (!bd || !bd->bd) { |
| 196 | return AVERROR(EFAULT); |
| 197 | } |
| 198 | |
| 199 | len = bd_read(bd->bd, buf, size); |
| 200 | |
| 201 | return len; |
| 202 | } |
| 203 | |
| 204 | static int64_t bluray_seek(URLContext *h, int64_t pos, int whence) |
| 205 | { |
| 206 | BlurayContext *bd = h->priv_data; |
| 207 | |
| 208 | if (!bd || !bd->bd) { |
| 209 | return AVERROR(EFAULT); |
| 210 | } |
| 211 | |
| 212 | switch (whence) { |
| 213 | case SEEK_SET: |
| 214 | case SEEK_CUR: |
| 215 | case SEEK_END: |
| 216 | return bd_seek(bd->bd, pos); |
| 217 | |
| 218 | case AVSEEK_SIZE: |
| 219 | return bd_get_title_size(bd->bd); |
| 220 | } |
| 221 | |
| 222 | av_log(h, AV_LOG_ERROR, "Unsupported whence operation %d\n", whence); |
| 223 | return AVERROR(EINVAL); |
| 224 | } |
| 225 | |
| 226 | |
| 227 | URLProtocol ff_bluray_protocol = { |
| 228 | .name = "bluray", |
| 229 | .url_close = bluray_close, |
| 230 | .url_open = bluray_open, |
| 231 | .url_read = bluray_read, |
| 232 | .url_seek = bluray_seek, |
| 233 | .priv_data_size = sizeof(BlurayContext), |
| 234 | .priv_data_class = &bluray_context_class, |
| 235 | }; |