aboutsummaryrefslogtreecommitdiffhomepage
path: root/stream/stream_cdda.c
blob: 7fd461a361ec72d5d2c3369f0f40c105683be907 (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
/*
 * Original author: Albeu
 *
 * This file is part of mpv.
 *
 * mpv 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.
 *
 * mpv 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 mpv.  If not, see <http://www.gnu.org/licenses/>.
 */

#include "config.h"

#include <cdio/cdio.h>

#if CDIO_API_VERSION < 6
#define OLD_API
#endif

#ifdef OLD_API
#include <cdio/cdda.h>
#include <cdio/paranoia.h>
#else
#include <cdio/paranoia/cdda.h>
#include <cdio/paranoia/paranoia.h>
#endif

#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>

#include "mpv_talloc.h"

#include "stream.h"
#include "options/m_option.h"
#include "options/m_config.h"
#include "options/options.h"

#include "common/msg.h"

#include "config.h"
#if !HAVE_GPL
#error GPL only
#endif

typedef struct cdda_params {
    cdrom_drive_t *cd;
    cdrom_paranoia_t *cdp;
    int sector;
    int start_sector;
    int end_sector;

    // options
    int speed;
    int paranoia_mode;
    int sector_size;
    int search_overlap;
    int toc_bias;
    int toc_offset;
    int skip;
    char *device;
    int span[2];
    int cdtext;
} cdda_priv;

#define OPT_BASE_STRUCT struct cdda_params
const struct m_sub_options stream_cdda_conf = {
    .opts = (const m_option_t[]) {
        OPT_INTRANGE("speed", speed, 0, 1, 100),
        OPT_INTRANGE("paranoia", paranoia_mode, 0, 0, 2),
        OPT_INTRANGE("sector-size", sector_size, 0, 1, 100),
        OPT_INTRANGE("overlap", search_overlap, 0, 0, 75),
        OPT_INT("toc-bias", toc_bias, 0),
        OPT_INT("toc-offset", toc_offset, 0),
        OPT_FLAG("skip", skip, 0),
        OPT_INTPAIR("span", span, 0),
        OPT_FLAG("cdtext", cdtext, 0),
        {0}
    },
    .size = sizeof(struct cdda_params),
    .defaults = &(const struct cdda_params){
        .search_overlap = -1,
        .skip = 1,
    },
};

static const char *const cdtext_name[] = {
#ifdef OLD_API
    [CDTEXT_ARRANGER] = "Arranger",
    [CDTEXT_COMPOSER] = "Composer",
    [CDTEXT_MESSAGE]  =  "Message",
    [CDTEXT_ISRC] =  "ISRC",
    [CDTEXT_PERFORMER] = "Performer",
    [CDTEXT_SONGWRITER] =  "Songwriter",
    [CDTEXT_TITLE] =  "Title",
    [CDTEXT_UPC_EAN] = "UPC_EAN",
#else
    [CDTEXT_FIELD_ARRANGER] = "Arranger",
    [CDTEXT_FIELD_COMPOSER] = "Composer",
    [CDTEXT_FIELD_MESSAGE]  =  "Message",
    [CDTEXT_FIELD_ISRC] =  "ISRC",
    [CDTEXT_FIELD_PERFORMER] = "Performer",
    [CDTEXT_FIELD_SONGWRITER] =  "Songwriter",
    [CDTEXT_FIELD_TITLE] =  "Title",
    [CDTEXT_FIELD_UPC_EAN] = "UPC_EAN",
#endif
};

static void print_cdtext(stream_t *s, int track)
{
    cdda_priv* p = (cdda_priv*)s->priv;
    if (!p->cdtext)
        return;
#ifdef OLD_API
    cdtext_t *text = cdio_get_cdtext(p->cd->p_cdio, track);
#else
    cdtext_t *text = cdio_get_cdtext(p->cd->p_cdio);
#endif
    int header = 0;
    if (text) {
        for (int i = 0; i < sizeof(cdtext_name) / sizeof(cdtext_name[0]); i++) {
            const char *name = cdtext_name[i];
#ifdef OLD_API
            const char *value = cdtext_get_const(i, text);
#else
            const char *value = cdtext_get_const(text, i, track);
#endif
            if (name && value) {
                if (!header)
                    MP_INFO(s, "CD-Text (%s):\n", track ? "track" : "CD");
                header = 1;
                MP_INFO(s, "  %s: '%s'\n", name, value);
            }
        }
    }
}

static void print_track_info(stream_t *s, int track)
{
    MP_INFO(s, "Switched to track %d\n", track);
    print_cdtext(s, track);
}

static void cdparanoia_callback(long int inpos, paranoia_cb_mode_t function)
{
}

static int fill_buffer(stream_t *s, char *buffer, int max_len)
{
    cdda_priv *p = (cdda_priv *)s->priv;
    int16_t *buf;
    int i;

    if (max_len < CDIO_CD_FRAMESIZE_RAW)
        return -1;

    if ((p->sector < p->start_sector) || (p->sector > p->end_sector)) {
        return 0;
    }

    buf = paranoia_read(p->cdp, cdparanoia_callback);
    if (!buf)
        return 0;

    p->sector++;
    memcpy(buffer, buf, CDIO_CD_FRAMESIZE_RAW);

    for (i = 0; i < p->cd->tracks; i++) {
        if (p->cd->disc_toc[i].dwStartSector == p->sector - 1) {
            print_track_info(s, i + 1);
            break;
        }
    }

    return CDIO_CD_FRAMESIZE_RAW;
}

static int seek(stream_t *s, int64_t newpos)
{
    cdda_priv *p = (cdda_priv *)s->priv;
    int sec;
    int current_track = 0, seeked_track = 0;
    int seek_to_track = 0;
    int i;

    newpos += p->start_sector * CDIO_CD_FRAMESIZE_RAW;

    sec = newpos / CDIO_CD_FRAMESIZE_RAW;
    if (newpos < 0 || sec > p->end_sector) {
        p->sector = p->end_sector + 1;
        return 0;
    }

    for (i = 0; i < p->cd->tracks; i++) {
        if (p->sector >= p->cd->disc_toc[i].dwStartSector
            && p->sector < p->cd->disc_toc[i + 1].dwStartSector)
            current_track = i;
        if (sec >= p->cd->disc_toc[i].dwStartSector
            && sec < p->cd->disc_toc[i + 1].dwStartSector)
        {
            seeked_track = i;
            seek_to_track = sec == p->cd->disc_toc[i].dwStartSector;
        }
    }
    if (current_track != seeked_track && !seek_to_track)
        print_track_info(s, seeked_track + 1);

    p->sector = sec;

    paranoia_seek(p->cdp, sec, SEEK_SET);
    return 1;
}

static void close_cdda(stream_t *s)
{
    cdda_priv *p = (cdda_priv *)s->priv;
    paranoia_free(p->cdp);
    cdda_close(p->cd);
}

static int get_track_by_sector(cdda_priv *p, unsigned int sector)
{
    int i;
    for (i = p->cd->tracks; i >= 0; --i)
        if (p->cd->disc_toc[i].dwStartSector <= sector)
            break;
    return i;
}

static int control(stream_t *stream, int cmd, void *arg)
{
    cdda_priv *p = stream->priv;
    switch (cmd) {
    case STREAM_CTRL_GET_NUM_CHAPTERS:
    {
        int start_track = get_track_by_sector(p, p->start_sector);
        int end_track = get_track_by_sector(p, p->end_sector);
        if (start_track == -1 || end_track == -1)
            return STREAM_ERROR;
        *(unsigned int *)arg = end_track + 1 - start_track;
        return STREAM_OK;
    }
    case STREAM_CTRL_GET_CHAPTER_TIME:
    {
        int track = *(double *)arg;
        int start_track = get_track_by_sector(p, p->start_sector);
        int end_track = get_track_by_sector(p, p->end_sector);
        track += start_track;
        if (track > end_track)
            return STREAM_ERROR;
        int64_t sector = p->cd->disc_toc[track].dwStartSector;
        int64_t pos = sector * CDIO_CD_FRAMESIZE_RAW;
        // Assume standard audio CD: 44.1khz, 2 channels, s16 samples
        *(double *)arg = pos / (44100.0 * 2 * 2);
        return STREAM_OK;
    }
    case STREAM_CTRL_GET_SIZE:
        *(int64_t *)arg =
            (p->end_sector + 1 - p->start_sector) * CDIO_CD_FRAMESIZE_RAW;
        return STREAM_OK;
    }
    return STREAM_UNSUPPORTED;
}

static int open_cdda(stream_t *st)
{
    st->priv = mp_get_config_group(st, st->global, &stream_cdda_conf);
    cdda_priv *priv = st->priv;
    cdda_priv *p = priv;
    int mode = p->paranoia_mode;
    int offset = p->toc_offset;
    cdrom_drive_t *cdd = NULL;
    int last_track;

    char *global_device;
    mp_read_option_raw(st->global, "cdrom-device", &m_option_type_string,
                       &global_device);
    talloc_steal(st, global_device);

    if (st->path[0]) {
        p->device = st->path;
    } else if (global_device && global_device[0]) {
        p->device = global_device;
    } else {
        p->device = DEFAULT_CDROM_DEVICE;
    }

#if defined(__NetBSD__)
    cdd = cdda_identify_scsi(p->device, p->device, 0, NULL);
#else
    cdd = cdda_identify(p->device, 0, NULL);
#endif

    if (!cdd) {
        MP_ERR(st, "Can't open CDDA device.\n");
        return STREAM_ERROR;
    }

    cdda_verbose_set(cdd, CDDA_MESSAGE_FORGETIT, CDDA_MESSAGE_FORGETIT);

    if (p->sector_size)
        cdd->nsectors = p->sector_size;

    if (cdda_open(cdd) != 0) {
        MP_ERR(st, "Can't open disc.\n");
        cdda_close(cdd);
        return STREAM_ERROR;
    }

    priv->cd = cdd;

    if (p->toc_bias)
        offset -= cdda_track_firstsector(cdd, 1);

    if (offset) {
        for (int n = 0; n < cdd->tracks + 1; n++)
            cdd->disc_toc[n].dwStartSector += offset;
    }

    if (p->speed > 0)
        cdda_speed_set(cdd, p->speed);

    last_track = cdda_tracks(cdd);
    if (p->span[0] > last_track)
        p->span[0] = last_track;
    if (p->span[1] < p->span[0])
        p->span[1] = p->span[0];
    if (p->span[1] > last_track)
        p->span[1] = last_track;
    if (p->span[0])
        priv->start_sector = cdda_track_firstsector(cdd, p->span[0]);
    else
        priv->start_sector = cdda_disc_firstsector(cdd);

    if (p->span[1])
        priv->end_sector = cdda_track_lastsector(cdd, p->span[1]);
    else
        priv->end_sector = cdda_disc_lastsector(cdd);

    priv->cdp = paranoia_init(cdd);
    if (priv->cdp == NULL) {
        cdda_close(cdd);
        free(priv);
        return STREAM_ERROR;
    }

    if (mode == 0)
        mode = PARANOIA_MODE_DISABLE;
    else if (mode == 1)
        mode = PARANOIA_MODE_OVERLAP;
    else
        mode = PARANOIA_MODE_FULL;

    if (p->skip)
        mode &= ~PARANOIA_MODE_NEVERSKIP;
    else
        mode |= PARANOIA_MODE_NEVERSKIP;

    if (p->search_overlap > 0)
        mode |= PARANOIA_MODE_OVERLAP;
    else if (p->search_overlap == 0)
        mode &= ~PARANOIA_MODE_OVERLAP;

    paranoia_modeset(priv->cdp, mode);

    if (p->search_overlap > 0)
        paranoia_overlapset(priv->cdp, p->search_overlap);

    paranoia_seek(priv->cdp, priv->start_sector, SEEK_SET);
    priv->sector = priv->start_sector;

    st->priv = priv;
    st->sector_size = CDIO_CD_FRAMESIZE_RAW;

    st->fill_buffer = fill_buffer;
    st->seek = seek;
    st->seekable = true;
    st->control = control;
    st->close = close_cdda;

    st->streaming = true;

    st->demuxer = "+disc";

    print_cdtext(st, 0);

    return STREAM_OK;
}

const stream_info_t stream_info_cdda = {
    .name = "cdda",
    .open = open_cdda,
    .protocols = (const char*const[]){"cdda", NULL },
};