apps/codecs.c

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (C) 2002 Björn Stenberg
  11  *
  12  * All files in this archive are subject to the GNU General Public License.
  13  * See the file COPYING in the source tree root for full license agreement.
  14  *
  15  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  16  * KIND, either express or implied.
  17  *
  18  ****************************************************************************/
  19 #include "config.h"
  20
  21 #include <stdbool.h>
  22 #include <string.h>
  23 #include <stdio.h>
  24 #include <atoi.h>
  25 #include <timefuncs.h>
  26 #include <ctype.h>
  27 #include "debug.h"
  28 #include "button.h"
  29 #include "dir.h"
  30 #include "file.h"
  31 #include "kernel.h"
  32 #include "sprintf.h"
  33 #include "logf.h"
  34 #include "screens.h"
  35 #include "misc.h"
  36 #include "mas.h"
  37 #include "codecs.h"
  38 #include "lang.h"
  39 #include "keyboard.h"
  40 #include "mpeg.h"
  41 #include "buffer.h"
  42 #include "mp3_playback.h"
  43 #include "playback.h"
  44 #include "backlight.h"
  45 #include "ata.h"
  46 #include "talk.h"
  47 #include "mp3data.h"
  48 #include "powermgmt.h"
  49 #include "system.h"
  50 #include "sound.h"
  51 #include "database.h"
  52 #include "splash.h"
  53
  54 #ifdef SIMULATOR
  55 #if CONFIG_CODEC == SWCODEC
  56 unsigned char codecbuf[CODEC_SIZE];
  57 #endif
  58 void *sim_codec_load_ram(char* codecptr, int size,
  59         void* ptr2, int bufwrap, void **pd);
  60 void sim_codec_close(void *pd);
  61 #else
  62 #define sim_codec_close(x)
  63 extern unsigned char codecbuf[];
  64 #endif
  65
  66 extern void* plugin_get_audio_buffer(int *buffer_size);
  67
  68 struct codec_api ci_voice;
  69
  70 struct codec_api ci = {
  71
  72     0, /* filesize */
  73     0, /* curpos */
  74     NULL, /* id3 */
  75     NULL, /* taginfo_ready */
  76     false, /* stop_codec */
  77     0, /* new_track */
  78     0, /* seek_time */
  79     NULL, /* get_codec_memory */
  80     NULL, /* pcmbuf_insert */
  81     NULL, /* pcmbuf_insert_split */
  82     NULL, /* set_elapsed */
  83     NULL, /* read_filebuf */
  84     NULL, /* request_buffer */
  85     NULL, /* advance_buffer */
  86     NULL, /* advance_buffer_loc */
  87     NULL, /* seek_buffer */
  88     NULL, /* seek_complete */
  89     NULL, /* mp3_get_filepos */
  90     NULL, /* request_next_track */
  91     NULL, /* discard_codec */
  92     NULL, /* set_offset */
  93     NULL, /* configure */
  94
  95     gui_syncsplash,
  96
  97     /* file */
  98     (open_func)PREFIX(open),
  99     close,
 100     (read_func)read,
 101     PREFIX(lseek),
 102     (creat_func)PREFIX(creat),
 103     (write_func)write,
 104     PREFIX(remove),
 105     PREFIX(rename),
 106     PREFIX(ftruncate),
 107     fdprintf,
 108     read_line,
 109     settings_parseline,
 110 #ifndef SIMULATOR
 111     ata_sleep,
 112 #endif
 113
 114     /* dir */
 115     PREFIX(opendir),
 116     PREFIX(closedir),
 117     PREFIX(readdir),
 118     PREFIX(mkdir),
 119
 120     /* kernel/ system */
 121     PREFIX(sleep),
 122     yield,
 123     &current_tick,
 124     default_event_handler,
 125     default_event_handler_ex,
 126     create_thread_on_core,
 127     remove_thread,
 128     reset_poweroff_timer,
 129 #ifndef SIMULATOR
 130     system_memory_guard,
 131     &cpu_frequency,
 132 #ifdef HAVE_ADJUSTABLE_CPU_FREQ
 133     cpu_boost,
 134 #endif
 135 #endif
 136
 137     /* strings and memory */
 138     snprintf,
 139     strcpy,
 140     strncpy,
 141     strlen,
 142     strrchr,
 143     strcmp,
 144     strcasecmp,
 145     strncasecmp,
 146     memset,
 147     memcpy,
 148     memmove,
 149     _ctype_,
 150     atoi,
 151     strchr,
 152     strcat,
 153     memcmp,
 154     strcasestr,
 155     memchr,
 156
 157     /* sound */
 158     sound_set,
 159 #ifndef SIMULATOR
 160     mp3_play_data,
 161     mp3_play_pause,
 162     mp3_play_stop,
 163     mp3_is_playing,
 164 #endif
 165
 166     /* playback control */
 167     PREFIX(audio_play),
 168     audio_stop,
 169     audio_pause,
 170     audio_resume,
 171     audio_next,
 172     audio_prev,
 173     audio_ff_rewind,
 174     audio_next_track,
 175     playlist_amount,
 176     audio_status,
 177     audio_has_changed_track,
 178     audio_current_track,
 179     audio_flush_and_reload_tracks,
 180     audio_get_file_pos,
 181
 182     /* misc */
 183     srand,
 184     rand,
 185     (qsort_func)qsort,
 186     kbd_input,
 187     get_time,
 188     set_time,
 189     plugin_get_audio_buffer,
 190
 191 #if defined(DEBUG) || defined(SIMULATOR)
 192     debugf,
 193 #endif
 194 #ifdef ROCKBOX_HAS_LOGF
 195     logf,
 196 #endif
 197     &global_settings,
 198     mp3info,
 199     count_mp3_frames,
 200     create_xing_header,
 201     find_next_frame,
 202     battery_level,
 203     battery_level_safe,
 204
 205 #ifdef RB_PROFILE
 206     profile_thread,
 207     profstop,
 208     profile_func_enter,
 209     profile_func_exit,
 210 #endif
 211
 212 #if defined(HAVE_RECORDING) && !defined(SIMULATOR)
 213     false,
 214     enc_get_inputs,
 215     enc_set_parameters,
 216     enc_alloc_chunk,
 217     enc_free_chunk,
 218     enc_wavbuf_near_empty,
 219     enc_get_wav_data,
 220     &enc_set_header_callback,
 221 #endif
 222
 223     /* new stuff at the end, sort into place next time
 224        the API gets incompatible */
 225
 226 };
 227
 228 void codec_get_full_path(char *path, const char *codec_fn)
 229 {
 230     /* Create full codec path */
 231     snprintf(path, MAX_PATH-1, CODECS_DIR "/%s", codec_fn);
 232 }
 233
 234 int codec_load_ram(char* codecptr, int size, void* ptr2, int bufwrap,
 235                    struct codec_api *api)
 236 {
 237     struct codec_header *hdr;
 238     int status;
 239 #ifndef SIMULATOR
 240     int copy_n;
 241
 242     if ((char *)&codecbuf[0] != codecptr) {
 243         /* zero out codec buffer to ensure a properly zeroed bss area */
 244         memset(codecbuf, 0, CODEC_SIZE);
 245
 246         size = MIN(size, CODEC_SIZE);
 247         copy_n = MIN(size, bufwrap);
 248         memcpy(codecbuf, codecptr, copy_n);
 249         if (size - copy_n > 0) {
 250             memcpy(&codecbuf[copy_n], ptr2, size - copy_n);
 251         }
 252         api->discard_codec();
 253     }
 254     hdr = (struct codec_header *)codecbuf;
 255
 256     if (size <= (signed)sizeof(struct codec_header)
 257         || hdr->magic != CODEC_MAGIC
 258         || hdr->target_id != TARGET_ID
 259         || hdr->load_addr != codecbuf
 260         || hdr->end_addr > codecbuf + CODEC_SIZE)
 261     {
 262         logf("codec header error");
 263         return CODEC_ERROR;
 264     }
 265 #else /* SIMULATOR */
 266     void *pd;
 267
 268     hdr = sim_codec_load_ram(codecptr, size, ptr2, bufwrap, &pd);
 269     api->discard_codec();
 270
 271     if (pd == NULL)
 272         return CODEC_ERROR;
 273
 274     if (hdr == NULL
 275         || hdr->magic != CODEC_MAGIC
 276         || hdr->target_id != TARGET_ID) {
 277         sim_codec_close(pd);
 278         return CODEC_ERROR;
 279     }
 280 #endif /* SIMULATOR */
 281     if (hdr->api_version > CODEC_API_VERSION
 282         || hdr->api_version < CODEC_MIN_API_VERSION) {
 283         sim_codec_close(pd);
 284         return CODEC_ERROR;
 285     }
 286
 287     invalidate_icache();
 288     status = hdr->entry_point(api);
 289
 290     sim_codec_close(pd);
 291
 292     return status;
 293 }
 294
 295 int codec_load_file(const char *plugin, struct codec_api *api)
 296 {
 297     char msgbuf[80];
 298     char path[MAX_PATH];
 299     int fd;
 300     int rc;
 301
 302     codec_get_full_path(path, plugin);
 303
 304     /* zero out codec buffer to ensure a properly zeroed bss area */
 305     memset(codecbuf, 0, CODEC_SIZE);
 306
 307     fd = open(path, O_RDONLY);
 308     if (fd < 0) {
 309         snprintf(msgbuf, sizeof(msgbuf)-1, "Couldn't load codec: %s", path);
 310         logf("Codec load error:%d", fd);
 311         gui_syncsplash(HZ*2, true, msgbuf);
 312         return fd;
 313     }
 314
 315     rc = read(fd, &codecbuf[0], CODEC_SIZE);
 316     close(fd);
 317     if (rc <= 0) {
 318         logf("Codec read error");
 319         return CODEC_ERROR;
 320     }
 321
 322     return codec_load_ram(codecbuf, (size_t)rc, NULL, 0, api);
 323 }