blob: 9282bf99565ba593ae6fe852f52f4c7890f04c18
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 | const 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 | }; |
236 |