apps/enc_config.c

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (C) 2006 Michael Sevakis
  11  *
  12  * This program is free software; you can redistribute it and/or
  13  * modify it under the terms of the GNU General Public License
  14  * as published by the Free Software Foundation; either version 2
  15  * of the License, or (at your option) any later version.
  16  *
  17  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  18  * KIND, either express or implied.
  19  *
  20  ****************************************************************************/
  21 #include <stdio.h>
  22 #include <sprintf.h>
  23 #include <string.h>
  24 #include <stdlib.h>
  25 #include "config.h"
  26 #include "action.h"
  27 #include "lang.h"
  28 #include "misc.h"
  29 #include "talk.h"
  30 #include "general.h"
  31 #include "codecs.h"
  32 #include "menu.h"
  33 #include "settings.h"
  34 #include "audio.h"
  35 #include "pcm_record.h"
  36 #include "enc_config.h"
  37 #include "splash.h"
  38
  39
  40 #define CALL_FN_(fn, ...) \
  41     if (fn) fn(__VA_ARGS__)
  42
  43 static int enc_menuitem_callback(int action,
  44                                   const struct menu_item_ex *this_item);
  45 static int enc_menuitem_enteritem(int action,
  46                                   const struct menu_item_ex *this_item);
  47 static void enc_rec_settings_changed(struct encoder_config *cfg);
  48 /* this is used by all encoder menu items,
  49    MUST be initialised before the call to do_menu() */
  50 static struct menucallback_data {
  51     struct encoder_config *cfg;
  52     bool global;
  53 } menu_callback_data;
  54
  55 /** Function definitions for each codec - add these to enc_data
  56     list following the definitions **/
  57
  58 /** aiff_enc.codec **/
  59
  60 /** mp3_enc.codec **/
  61 /* mp3_enc: return encoder capabilities */
  62 static void mp3_enc_get_caps(const struct encoder_config *cfg,
  63                              struct encoder_caps *caps,
  64                              bool for_config)
  65 {
  66     int i;
  67     unsigned long bitr;
  68
  69     if (!for_config)
  70     {
  71         /* Overall encoder capabilities */
  72         caps->samplerate_caps = MPEG1_SAMPR_CAPS | MPEG2_SAMPR_CAPS;
  73         caps->channel_caps    = CHN_CAP_ALL;
  74         return;
  75     }
  76
  77     /* Restrict caps based on config */
  78     i = round_value_to_list32(cfg->mp3_enc.bitrate, mp3_enc_bitr,
  79                               MP3_ENC_NUM_BITR, false);
  80     bitr = mp3_enc_bitr[i];
  81
  82     /* sample rate caps */
  83
  84     /* check if MPEG1 sample rates are available */
  85     if ((bitr >= 32 && bitr <= 128) || bitr >= 160)
  86         caps->samplerate_caps |= MPEG1_SAMPR_CAPS;
  87
  88     /* check if MPEG2 sample rates and mono are available */
  89     if (bitr <= 160)
  90     {
  91         caps->samplerate_caps |= MPEG2_SAMPR_CAPS;
  92         caps->channel_caps |= CHN_CAP_MONO;
  93     }
  94
  95     /* check if stereo is available */
  96     if (bitr >= 32)
  97         caps->channel_caps |= CHN_CAP_STEREO;
  98 } /* mp3_enc_get_caps */
  99
 100 /* mp3_enc: return the default configuration */
 101 static void mp3_enc_default_config(struct encoder_config *cfg)
 102 {
 103     cfg->mp3_enc.bitrate = 128; /* default that works for all types */
 104 } /* mp3_enc_default_config */
 105
 106 static void mp3_enc_convert_config(struct encoder_config *cfg,
 107                                    bool global)
 108 {
 109     if (global)
 110     {
 111         global_settings.mp3_enc_config.bitrate =
 112             round_value_to_list32(cfg->mp3_enc.bitrate, mp3_enc_bitr,
 113                                   MP3_ENC_NUM_BITR, false);
 114     }
 115     else
 116     {
 117         if ((unsigned)global_settings.mp3_enc_config.bitrate > MP3_ENC_NUM_BITR)
 118             global_settings.mp3_enc_config.bitrate = MP3_ENC_BITRATE_CFG_DEFAULT;
 119         cfg->mp3_enc.bitrate = mp3_enc_bitr[global_settings.mp3_enc_config.bitrate];
 120     }
 121 } /* mp3_enc_convert_config */
 122
 123 /* mp3_enc: show the bitrate setting options */
 124 static bool mp3_enc_bitrate(struct menucallback_data *data)
 125 {
 126     struct encoder_config *cfg = data->cfg;
 127     static const struct opt_items items[] =
 128     {
 129                             /* Available in MPEG Version: */
 130 #ifdef HAVE_MPEG2_SAMPR
 131 #if 0
 132         /* this sounds awful no matter what */
 133         { "8 kBit/s",   TALK_ID(8,   UNIT_KBIT) }, /*   2 */
 134 #endif
 135         /* mono only */
 136         { "16 kBit/s",  TALK_ID(16,  UNIT_KBIT) }, /*   2 */
 137         { "24 kBit/s",  TALK_ID(24,  UNIT_KBIT) }, /*   2 */
 138 #endif /* HAVE_MPEG2_SAMPR */
 139         /* stereo/mono */
 140         { "32 kBit/s",  TALK_ID(32,  UNIT_KBIT) }, /* 1,2 */
 141         { "40 kBit/s",  TALK_ID(40,  UNIT_KBIT) }, /* 1,2 */
 142         { "48 kBit/s",  TALK_ID(48,  UNIT_KBIT) }, /* 1,2 */
 143         { "56 kBit/s",  TALK_ID(56,  UNIT_KBIT) }, /* 1,2 */
 144         { "64 kBit/s",  TALK_ID(64,  UNIT_KBIT) }, /* 1,2 */
 145         { "80 kBit/s",  TALK_ID(80,  UNIT_KBIT) }, /* 1,2 */
 146         { "96 kBit/s",  TALK_ID(96,  UNIT_KBIT) }, /* 1,2 */
 147         { "112 kBit/s", TALK_ID(112, UNIT_KBIT) }, /* 1,2 */
 148         { "128 kBit/s", TALK_ID(128, UNIT_KBIT) }, /* 1,2 */
 149         /* Leave out 144 when there is both MPEG 1 and 2  */
 150 #if defined(HAVE_MPEG2_SAMPR) && !defined (HAVE_MPEG1_SAMPR)
 151         /* oddball MPEG2-only rate stuck in the middle */
 152         { "144 kBit/s", TALK_ID(144, UNIT_KBIT) }, /*   2 */
 153 #endif
 154         { "160 kBit/s", TALK_ID(160, UNIT_KBIT) }, /* 1,2 */
 155 #ifdef HAVE_MPEG1_SAMPR
 156         /* stereo only */
 157         { "192 kBit/s", TALK_ID(192, UNIT_KBIT) }, /* 1   */
 158         { "224 kBit/s", TALK_ID(224, UNIT_KBIT) }, /* 1   */
 159         { "256 kBit/s", TALK_ID(256, UNIT_KBIT) }, /* 1   */
 160         { "320 kBit/s", TALK_ID(320, UNIT_KBIT) }, /* 1   */
 161 #endif
 162     };
 163
 164     unsigned long rate_list[ARRAYLEN(items)];
 165
 166     /* This is rather constant based upon the build but better than
 167        storing and maintaining yet another list of numbers */
 168     int n_rates = make_list_from_caps32(
 169             MPEG1_BITR_CAPS | MPEG2_BITR_CAPS, mp3_enc_bitr,
 170             0
 171 #ifdef HAVE_MPEG1_SAMPR
 172             | MPEG1_BITR_CAPS
 173 #endif
 174 #ifdef HAVE_MPEG2_SAMPR
 175 #ifdef HAVE_MPEG1_SAMPR
 176             | (MPEG2_BITR_CAPS & ~(MP3_BITR_CAP_144 | MP3_BITR_CAP_8))
 177 #else
 178             | (MPEG2_BITR_CAPS & ~(MP3_BITR_CAP_8))
 179 #endif
 180 #endif /* HAVE_MPEG2_SAMPR */
 181             , rate_list);
 182
 183     int index = round_value_to_list32(cfg->mp3_enc.bitrate, rate_list,
 184                                       n_rates, false);
 185     bool res = set_option(str(LANG_BITRATE), &index, INT,
 186                           items, n_rates, NULL);
 187     index = round_value_to_list32(rate_list[index], mp3_enc_bitr,
 188                                   MP3_ENC_NUM_BITR, false);
 189     cfg->mp3_enc.bitrate = mp3_enc_bitr[index];
 190
 191     return res;
 192 } /* mp3_enc_bitrate */
 193
 194 /* mp3_enc configuration menu */
 195 MENUITEM_FUNCTION(mp3_bitrate, MENU_FUNC_USEPARAM, ID2P(LANG_BITRATE),
 196                    mp3_enc_bitrate,
 197                    &menu_callback_data, enc_menuitem_callback, Icon_NOICON);
 198 MAKE_MENU( mp3_enc_menu, ID2P(LANG_ENCODER_SETTINGS),
 199            enc_menuitem_enteritem, Icon_NOICON,
 200            &mp3_bitrate);
 201
 202
 203 /** wav_enc.codec **/
 204 /* wav_enc: show the configuration menu */
 205 #if 0
 206 MAKE_MENU( wav_enc_menu, ID2P(LANG_ENCODER_SETTINGS),
 207            enc_menuitem_enteritem, Icon_NOICON,
 208            );
 209 #endif
 210
 211 /** wavpack_enc.codec **/
 212 /* wavpack_enc: show the configuration menu */
 213 #if 0
 214 MAKE_MENU( wavpack_enc_menu, ID2P(LANG_ENCODER_SETTINGS),
 215            enc_menuitem_enteritem, Icon_NOICON,
 216            );
 217 #endif
 218
 219 /** config function pointers and/or data for each codec **/
 220 static const struct encoder_data
 221 {
 222     void   (*get_caps)(const struct encoder_config *cfg,
 223                        struct encoder_caps *caps, bool for_config);
 224     void   (*default_cfg)(struct encoder_config *cfg);
 225     void   (*convert_cfg)(struct encoder_config *cfg , bool global);
 226     const struct menu_item_ex *menu;
 227 } enc_data[REC_NUM_FORMATS] =
 228 {
 229     /* aiff_enc.codec */
 230     [REC_FORMAT_AIFF] = {
 231         NULL,
 232         NULL,
 233         NULL,
 234         NULL,
 235     },
 236     /* mp3_enc.codec */
 237     [REC_FORMAT_MPA_L3] = {
 238         mp3_enc_get_caps,
 239         mp3_enc_default_config,
 240         mp3_enc_convert_config,
 241         &mp3_enc_menu,
 242     },
 243     /* wav_enc.codec */
 244     [REC_FORMAT_PCM_WAV] = {
 245         NULL,
 246         NULL,
 247         NULL,
 248         NULL,
 249     },
 250     /* wavpack_enc.codec */
 251     [REC_FORMAT_WAVPACK] = {
 252         NULL,
 253         NULL,
 254         NULL,
 255         NULL,
 256     },
 257 };
 258
 259 static inline bool rec_format_ok(int rec_format)
 260 {
 261     return (unsigned)rec_format < REC_NUM_FORMATS;
 262 }
 263 /* This is called before entering the menu with the encoder settings
 264    Its needed to make sure the settings can take effect. */
 265 static int enc_menuitem_enteritem(int action,
 266                                   const struct menu_item_ex *this_item)
 267 {
 268     (void)this_item;
 269     /* this struct must be init'ed before calling do_menu() so this is safe */
 270     struct menucallback_data *data = &menu_callback_data;
 271     if (action == ACTION_STD_OK) /* entering the item */
 272     {
 273         if (data->global)
 274             global_to_encoder_config(data->cfg);
 275     }
 276     return action;
 277 }
 278 /* this is called when a encoder setting is exited
 279    It is used to update the status bar and save the setting */
 280 static int enc_menuitem_callback(int action,
 281                                   const struct menu_item_ex *this_item)
 282 {
 283     struct menucallback_data *data =
 284             (struct menucallback_data*)this_item->function->param;
 285
 286     if (action == ACTION_EXIT_MENUITEM)
 287     {
 288         /* If the setting being configured is global, it must be placed
 289                in global_settings before updating the status bar for the
 290                change to show upon exiting the item. */
 291         if (data->global)
 292         {
 293             enc_rec_settings_changed(data->cfg);
 294             encoder_config_to_global(data->cfg);
 295         }
 296
 297     }
 298     return action;
 299 }
 300
 301 /* update settings dependent upon encoder settings */
 302 static void enc_rec_settings_changed(struct encoder_config *cfg)
 303 {
 304     struct encoder_config enc_config;
 305     struct encoder_caps caps;
 306     long table[MAX(CHN_NUM_MODES, REC_NUM_FREQ)];
 307     int n;
 308
 309     if (cfg == NULL)
 310     {
 311         cfg = &enc_config;
 312         cfg->rec_format = global_settings.rec_format;
 313         global_to_encoder_config(cfg);
 314     }
 315
 316     /* have to sync other settings when encoder settings change */
 317     if (!enc_get_caps(cfg, &caps, true))
 318         return;
 319
 320     /* rec_channels */
 321     n = make_list_from_caps32(CHN_CAP_ALL, NULL,
 322                               caps.channel_caps, table);
 323
 324     /* no zero check needed: encoder must support at least one
 325        sample rate that recording supports or it shouldn't be in
 326        available in the recording options */
 327     n = round_value_to_list32(global_settings.rec_channels,
 328                               table, n, true);
 329     global_settings.rec_channels = table[n];
 330
 331     /* rec_frequency */
 332     n = make_list_from_caps32(REC_SAMPR_CAPS, rec_freq_sampr,
 333                               caps.samplerate_caps, table);
 334
 335     n = round_value_to_list32(
 336                 rec_freq_sampr[global_settings.rec_frequency],
 337                 table, n, false);
 338
 339     global_settings.rec_frequency = round_value_to_list32(
 340             table[n], rec_freq_sampr, REC_NUM_FREQ, false);
 341 } /* enc_rec_settings_changed */
 342
 343 /** public stuff **/
 344 void global_to_encoder_config(struct encoder_config *cfg)
 345 {
 346     const struct encoder_data *data = &enc_data[cfg->rec_format];
 347     CALL_FN_(data->convert_cfg, cfg, false);
 348 } /* global_to_encoder_config */
 349
 350 void encoder_config_to_global(const struct encoder_config *cfg)
 351 {
 352     const struct encoder_data *data = &enc_data[cfg->rec_format];
 353     CALL_FN_(data->convert_cfg, (struct encoder_config *)cfg, true);
 354 } /* encoder_config_to_global */
 355
 356 bool enc_get_caps(const struct encoder_config *cfg,
 357                   struct encoder_caps *caps,
 358                   bool for_config)
 359 {
 360     /* get_caps expects caps to be zeroed first */
 361     memset(caps, 0, sizeof (*caps));
 362
 363     if (!rec_format_ok(cfg->rec_format))
 364         return false;
 365
 366     if (enc_data[cfg->rec_format].get_caps)
 367     {
 368         enc_data[cfg->rec_format].get_caps(cfg, caps, for_config);
 369     }
 370     else
 371     {
 372         /* If no function provided...defaults to all */
 373         caps->samplerate_caps = SAMPR_CAP_ALL;
 374         caps->channel_caps    = CHN_CAP_ALL;
 375     }
 376
 377     return true;
 378 } /* enc_get_caps */
 379
 380 /* Initializes the config struct with default values */
 381 bool enc_init_config(struct encoder_config *cfg)
 382 {
 383     if (!rec_format_ok(cfg->rec_format))
 384         return false;
 385     CALL_FN_(enc_data[cfg->rec_format].default_cfg, cfg);
 386     return true;
 387 } /* enc_init_config */
 388
 389 /** Encoder Menus **/
 390 #if 0
 391 bool enc_config_menu(struct encoder_config *cfg)
 392 {
 393     if (!rec_format_ok(cfg->rec_format))
 394         return false;
 395     if (enc_data[cfg->rec_format].menu)
 396     {
 397         menu_callback_data.cfg = &cfg;
 398         menu_callback_data.global = false;
 399         return do_menu(enc_data[cfg->rec_format].menu, NULL, NULL, false)
 400                 == MENU_ATTACHED_USB;
 401     }
 402     else
 403     {
 404         splash(HZ, str(LANG_NO_SETTINGS));
 405         return false;
 406     }
 407 } /* enc_config_menu */
 408 #endif
 409
 410 /** Global Settings **/
 411
 412 /* Reset all codecs to defaults */
 413 void enc_global_settings_reset(void)
 414 {
 415     struct encoder_config cfg;
 416     cfg.rec_format = 0;
 417
 418     do
 419     {
 420         global_to_encoder_config(&cfg);
 421         enc_init_config(&cfg);
 422         encoder_config_to_global(&cfg);
 423         if (cfg.rec_format == global_settings.rec_format)
 424             enc_rec_settings_changed(&cfg);
 425     }
 426     while (++cfg.rec_format < REC_NUM_FORMATS);
 427 } /* enc_global_settings_reset */
 428
 429 /* Apply new settings */
 430 void enc_global_settings_apply(void)
 431 {
 432     struct encoder_config cfg;
 433     if (!rec_format_ok(global_settings.rec_format))
 434         global_settings.rec_format = REC_FORMAT_DEFAULT;
 435
 436     cfg.rec_format = global_settings.rec_format;
 437     global_to_encoder_config(&cfg);
 438     enc_rec_settings_changed(&cfg);
 439     encoder_config_to_global(&cfg);
 440 } /* enc_global_settings_apply */
 441
 442 /* Show an encoder's config menu based on the global_settings.
 443    Modified settings are placed in global_settings.enc_config. */
 444 bool enc_global_config_menu(void)
 445 {
 446     struct encoder_config cfg;
 447
 448     if (!rec_format_ok(global_settings.rec_format))
 449         global_settings.rec_format = REC_FORMAT_DEFAULT;
 450
 451     cfg.rec_format = global_settings.rec_format;
 452
 453     if (enc_data[cfg.rec_format].menu)
 454     {
 455         menu_callback_data.cfg = &cfg;
 456         menu_callback_data.global = true;
 457         return do_menu(enc_data[cfg.rec_format].menu, NULL, NULL, false)
 458                 == MENU_ATTACHED_USB;
 459     }
 460     else
 461     {
 462         splash(HZ, str(LANG_NO_SETTINGS));
 463         return false;
 464     }
 465 } /* enc_global_config_menu */