summaryrefslogtreecommitdiffstats
path: root/stream/stream_bluray.c
blob: d7a8d0b0cf14f3533dec8ad8ca29130dd84b0d55 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
/*
 * Copyright (C) 2010 Benjamin Zores <ben@geexbox.org>
 *
 * This file is part of MPlayer.
 *
 * MPlayer is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * MPlayer is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with MPlayer; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

/*
 * Blu-ray parser/reader using libbluray
 *  Use 'git clone git://git.videolan.org/libbluray' to get it.
 *
 * TODO:
 *  - Add libbdnav support for menus navigation
 *  - Add AACS/BD+ protection detection
 *  - Add descrambled keys database support (KEYDB.cfg)
 *
 */

#include <string.h>
#include <assert.h>

#include <libbluray/bluray.h>
#include <libavutil/common.h>

#include "config.h"
#include "talloc.h"
#include "common/common.h"
#include "common/msg.h"
#include "options/m_option.h"
#include "stream.h"

#define BLURAY_SECTOR_SIZE     6144

#define BLURAY_DEFAULT_ANGLE      0
#define BLURAY_DEFAULT_CHAPTER    0
#define BLURAY_DEFAULT_TITLE      0

// 90khz ticks
#define BD_TIMEBASE (90000)
#define BD_TIME_TO_MP(x) ((x) / (double)(BD_TIMEBASE))
#define BD_TIME_FROM_MP(x) ((uint64_t)(x * BD_TIMEBASE))

char *bluray_device  = NULL;
int   bluray_angle   = 0;

struct bluray_priv_s {
    BLURAY *bd;
    int num_titles;
    int current_angle;
    int current_title;

    int cfg_title;
    char *cfg_device;
};

static struct bluray_priv_s bluray_stream_priv_dflts = {
    .cfg_title = BLURAY_DEFAULT_TITLE
};

#define OPT_BASE_STRUCT struct bluray_priv_s
static const m_option_t bluray_stream_opts_fields[] = {
    OPT_INTRANGE("title", cfg_title, 0, 0, 99999),
    OPT_STRING("device", cfg_device, 0),
    {0}
};

static void bluray_stream_close(stream_t *s)
{
    struct bluray_priv_s *b = s->priv;

    bd_close(b->bd);
}

static int bluray_stream_seek(stream_t *s, int64_t pos)
{
    struct bluray_priv_s *b = s->priv;
    int64_t p;

    p = bd_seek(b->bd, pos);
    if (p == -1)
        return 0;

    return 1;
}

static int bluray_stream_fill_buffer(stream_t *s, char *buf, int len)
{
    struct bluray_priv_s *b = s->priv;

    return bd_read(b->bd, buf, len);
}

static int bluray_stream_control(stream_t *s, int cmd, void *arg)
{
    struct bluray_priv_s *b = s->priv;

    switch (cmd) {

    case STREAM_CTRL_GET_NUM_CHAPTERS: {
        BLURAY_TITLE_INFO *ti;

        ti = bd_get_title_info(b->bd, b->current_title, b->current_angle);
        if (!ti)
            return STREAM_UNSUPPORTED;

        *((unsigned int *) arg) = ti->chapter_count;
        bd_free_title_info(ti);

        return 1;
    }

    case STREAM_CTRL_GET_CHAPTER_TIME: {
        BLURAY_TITLE_INFO *ti;
        int chapter = *(double *)arg;
        double time = MP_NOPTS_VALUE;

        ti = bd_get_title_info(b->bd, b->current_title, b->current_angle);
        if (!ti)
            return STREAM_UNSUPPORTED;

        if (chapter >= 0 || chapter < ti->chapter_count) {
            time = BD_TIME_TO_MP(ti->chapters[chapter].start);
        }
        bd_free_title_info(ti);

        if (time != MP_NOPTS_VALUE) {
            *(double *)arg = time;
            return STREAM_OK;
        }
        return STREAM_ERROR;
    }

    case STREAM_CTRL_GET_CURRENT_TITLE: {
        *((unsigned int *) arg) = b->current_title;
        return 1;
    }
    case STREAM_CTRL_GET_NUM_TITLES: {
        *((unsigned int *)arg) = b->num_titles;
        return 1;
    }

    case STREAM_CTRL_GET_CURRENT_CHAPTER: {
        *((unsigned int *) arg) = bd_get_current_chapter(b->bd);
        return 1;
    }

    case STREAM_CTRL_SEEK_TO_CHAPTER: {
        BLURAY_TITLE_INFO *ti;
        int chapter = *((unsigned int *) arg);
        int64_t pos;
        int r;

        ti = bd_get_title_info(b->bd, b->current_title, b->current_angle);
        if (!ti)
            return STREAM_UNSUPPORTED;

        if (chapter < 0 || chapter > ti->chapter_count) {
            bd_free_title_info(ti);
            return STREAM_UNSUPPORTED;
        }

        pos = bd_chapter_pos(b->bd, chapter);
        r = bluray_stream_seek(s, pos);
        bd_free_title_info(ti);

        return r ? 1 : STREAM_UNSUPPORTED;
    }

    case STREAM_CTRL_GET_TIME_LENGTH: {
        BLURAY_TITLE_INFO *ti;

        ti = bd_get_title_info(b->bd, b->current_title, b->current_angle);
        if (!ti)
            return STREAM_UNSUPPORTED;

        *((double *) arg) = BD_TIME_TO_MP(ti->duration);
        return STREAM_OK;
    }

    case STREAM_CTRL_GET_CURRENT_TIME: {
        *((double *) arg) = BD_TIME_TO_MP(bd_tell_time(b->bd));
        return STREAM_OK;
    }

    case STREAM_CTRL_SEEK_TO_TIME: {
        double pts = *((double *) arg);
        bd_seek_time(b->bd, BD_TIME_FROM_MP(pts));
        // Reset mpv internal stream position.
        stream_seek(s, bd_tell(b->bd));
        // API makes it hard to determine seeking success
        return STREAM_OK;
    }

    case STREAM_CTRL_GET_NUM_ANGLES: {
        BLURAY_TITLE_INFO *ti;

        ti = bd_get_title_info(b->bd, b->current_title, b->current_angle);
        if (!ti)
            return STREAM_UNSUPPORTED;

        *((int *) arg) = ti->angle_count;
        bd_free_title_info(ti);

        return 1;
    }

    case STREAM_CTRL_GET_ANGLE: {
        *((int *) arg) = b->current_angle;
        return 1;
    }

    case STREAM_CTRL_SET_ANGLE: {
        BLURAY_TITLE_INFO *ti;
        int angle = *((int *) arg);

        ti = bd_get_title_info(b->bd, b->current_title, b->current_angle);
        if (!ti)
            return STREAM_UNSUPPORTED;

        if (angle < 0 || angle > ti->angle_count) {
            bd_free_title_info(ti);
            return STREAM_UNSUPPORTED;
        }

        b->current_angle = angle;
        bd_seamless_angle_change(b->bd, angle);
        bd_free_title_info(ti);

        return 1;
    }

    case STREAM_CTRL_GET_LANG: {
        struct stream_lang_req *req = arg;
        BLURAY_TITLE_INFO *ti = bd_get_title_info(b->bd, b->current_title, b->current_angle);
        if (ti->clip_count) {
            BLURAY_STREAM_INFO *si = NULL;
            int count = 0;
            switch (req->type) {
            case STREAM_AUDIO:
                count = ti->clips[0].audio_stream_count;
                si = ti->clips[0].audio_streams;
                break;
            case STREAM_SUB:
                count = ti->clips[0].pg_stream_count;
                si = ti->clips[0].pg_streams;
                break;
            }
            for (int n = 0; n < count; n++) {
                BLURAY_STREAM_INFO *i = &si[n];
                if (i->pid == req->id) {
                    snprintf(req->name, sizeof(req->name), "%.4s", i->lang);
                    bd_free_title_info(ti);
                    return STREAM_OK;
                }
            }
        }
        bd_free_title_info(ti);
        return STREAM_ERROR;
    }
    case STREAM_CTRL_GET_START_TIME:
    {
        *((double *)arg) = 0;
        return STREAM_OK;
    }
    case STREAM_CTRL_MANAGES_TIMELINE:
        return STREAM_OK;

    default:
        break;
    }

    return STREAM_UNSUPPORTED;
}

static int bluray_stream_open(stream_t *s, int mode)
{
    struct bluray_priv_s *b = s->priv;

    BLURAY_TITLE_INFO *info = NULL;
    BLURAY *bd;

    int title, title_guess;
    uint64_t title_size;

    unsigned int angle = 0;
    uint64_t max_duration = 0;

    char *device = NULL;
    int i;

    /* find the requested device */
    if (b->cfg_device)
        device = b->cfg_device;
    else if (bluray_device)
        device = bluray_device;

    if (!device) {
        MP_ERR(s, "No Blu-ray device/location was specified ...\n");
        return STREAM_UNSUPPORTED;
    }

    /* open device */
    bd = bd_open(device, NULL);
    if (!bd) {
        MP_ERR(s, "Couldn't open Blu-ray device: %s\n",
               device);
        return STREAM_UNSUPPORTED;
    }

    /* check for available titles on disc */
    b->num_titles = bd_get_titles(bd, TITLES_RELEVANT, angle);
    MP_SMODE(s, "ID_BLURAY_TITLES=%d\n", b->num_titles);
    if (!b->num_titles) {
        MP_ERR(s, "Can't find any Blu-ray-compatible title here.\n");
        bd_close(bd);
        return STREAM_UNSUPPORTED;
    }

    /* parse titles information */
    title_guess = BLURAY_DEFAULT_TITLE;
    for (i = 0; i < b->num_titles; i++) {
        BLURAY_TITLE_INFO *ti;
        int sec, msec;

        ti = bd_get_title_info(bd, i, angle);
        if (!ti)
            continue;

        sec  = ti->duration / 90000;
        msec = (ti->duration - sec) % 1000;

        MP_SMODE(s, "ID_BLURAY_TITLE_%d_CHAPTERS=%d\n", i + 1, ti->chapter_count);
        MP_SMODE(s, "ID_BLURAY_TITLE_%d_ANGLE=%d\n", i + 1, ti->angle_count);
        MP_SMODE(s, "ID_BLURAY_TITLE_%d_LENGTH=%d.%03d\n", i + 1, sec, msec);

        /* try to guess which title may contain the main movie */
        if (ti->duration > max_duration) {
            max_duration = ti->duration;
            title_guess = i;
        }

        bd_free_title_info(ti);
    }

    /* Select current title */
    title = b->cfg_title ? b->cfg_title - 1: title_guess;
    title = FFMIN(title, b->num_titles - 1);

    bd_select_title(bd, title);

    title_size = bd_get_title_size(bd);
    MP_SMODE(s, "ID_BLURAY_CURRENT_TITLE=%d\n", title + 1);

    /* Get current title information */
    info = bd_get_title_info(bd, title, angle);
    if (!info)
        goto err_no_info;

    /* Select angle */
    angle = bluray_angle ? bluray_angle : BLURAY_DEFAULT_ANGLE;
    angle = FFMIN(angle, info->angle_count);

    if (angle)
        bd_select_angle(bd, angle);

    MP_SMODE(s, "ID_BLURAY_CURRENT_ANGLE=%d\n", angle + 1);

    bd_free_title_info(info);

err_no_info:
    s->fill_buffer = bluray_stream_fill_buffer;
    s->seek        = bluray_stream_seek;
    s->close       = bluray_stream_close;
    s->control     = bluray_stream_control;

    b->bd              = bd;
    b->current_angle   = angle;
    b->current_title   = title;

    s->type        = STREAMTYPE_BLURAY;
    s->end_pos     = title_size;
    s->sector_size = BLURAY_SECTOR_SIZE;
    s->flags       = MP_STREAM_SEEK;
    s->priv        = b;

    MP_VERBOSE(s, "Blu-ray successfully opened.\n");

    return STREAM_OK;
}

const stream_info_t stream_info_bluray = {
    .name = "bd",
    .open = bluray_stream_open,
    .protocols = (const char*[]){ "bd", "br", "bluray", NULL },
    .priv_defaults = &bluray_stream_priv_dflts,
    .priv_size = sizeof(struct bluray_priv_s),
    .options = bluray_stream_opts_fields,
    .url_options = (const char*[]){
        "hostname=title",
        "filename=device",
        NULL
    },
};