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 "splash.h"
  52 #include "general.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, /* set_elapsed */
  82     NULL, /* read_filebuf */
  83     NULL, /* request_buffer */
  84     NULL, /* advance_buffer */
  85     NULL, /* advance_buffer_loc */
  86     NULL, /* seek_buffer */
  87     NULL, /* seek_complete */
  88     NULL, /* mp3_get_filepos */
  89     NULL, /* request_next_track */
  90     NULL, /* discard_codec */
  91     NULL, /* set_offset */
  92     NULL, /* configure */
  93
  94     gui_syncsplash,
  95
  96     /* file */
  97     (open_func)PREFIX(open),
  98     close,
  99     (read_func)read,
 100     PREFIX(lseek),
 101     (creat_func)PREFIX(creat),
 102     (write_func)write,
 103     PREFIX(remove),
 104     PREFIX(rename),
 105     PREFIX(ftruncate),
 106     PREFIX(fsync),
 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 #ifdef CPU_BOOST_LOGGING
 134     cpu_boost_,
 135 #else
 136     cpu_boost,
 137 #endif
 138 #endif
 139 #endif
 140
 141     /* strings and memory */
 142     snprintf,
 143     strcpy,
 144     strncpy,
 145     strlen,
 146     strrchr,
 147     strcmp,
 148     strcasecmp,
 149     strncasecmp,
 150     memset,
 151     memcpy,
 152     memmove,
 153     _ctype_,
 154     atoi,
 155     strchr,
 156     strcat,
 157     memcmp,
 158     strcasestr,
 159     memchr,
 160
 161     /* sound */
 162     sound_set,
 163 #ifndef SIMULATOR
 164     mp3_play_data,
 165     mp3_play_pause,
 166     mp3_play_stop,
 167     mp3_is_playing,
 168 #endif
 169
 170     /* playback control */
 171     PREFIX(audio_play),
 172     audio_stop,
 173     audio_pause,
 174     audio_resume,
 175     audio_next,
 176     audio_prev,
 177     audio_ff_rewind,
 178     audio_next_track,
 179     playlist_amount,
 180     audio_status,
 181     audio_has_changed_track,
 182     audio_current_track,
 183     audio_flush_and_reload_tracks,
 184     audio_get_file_pos,
 185
 186     /* misc */
 187     srand,
 188     rand,
 189     (qsort_func)qsort,
 190     kbd_input,
 191     get_time,
 192     set_time,
 193     plugin_get_audio_buffer,
 194     round_value_to_list32,
 195
 196 #if defined(DEBUG) || defined(SIMULATOR)
 197     debugf,
 198 #endif
 199 #ifdef ROCKBOX_HAS_LOGF
 200     logf,
 201 #endif
 202     &global_settings,
 203     mp3info,
 204     count_mp3_frames,
 205     create_xing_header,
 206     find_next_frame,
 207     battery_level,
 208     battery_level_safe,
 209
 210 #ifdef RB_PROFILE
 211     profile_thread,
 212     profstop,
 213     profile_func_enter,
 214     profile_func_exit,
 215 #endif
 216
 217 #if defined(HAVE_RECORDING) && !defined(SIMULATOR)
 218     false,  /* stop_encoder */
 219     0,      /* enc_codec_loaded */
 220     enc_get_inputs,
 221     enc_set_parameters,
 222     enc_get_chunk,
 223     enc_finish_chunk,
 224     enc_pcm_buf_near_empty,
 225     enc_get_pcm_data,
 226     enc_unget_pcm_data,
 227 #endif
 228
 229     /* new stuff at the end, sort into place next time
 230        the API gets incompatible */
 231
 232 };
 233
 234 void codec_get_full_path(char *path, const char *codec_root_fn)
 235 {
 236     snprintf(path, MAX_PATH-1, CODECS_DIR "/%s." CODEC_EXTENSION,
 237              codec_root_fn);
 238 }
 239
 240 int codec_load_ram(char* codecptr, int size, void* ptr2, int bufwrap,
 241                    struct codec_api *api)
 242 {
 243     struct codec_header *hdr;
 244     int status;
 245 #ifndef SIMULATOR
 246     int copy_n;
 247
 248     if ((char *)&codecbuf[0] != codecptr) {
 249         size = MIN(size, CODEC_SIZE);
 250         copy_n = MIN(size, bufwrap);
 251         memcpy(codecbuf, codecptr, copy_n);
 252         if (size - copy_n > 0) {
 253             memcpy(&codecbuf[copy_n], ptr2, size - copy_n);
 254         }
 255         api->discard_codec();
 256     }
 257     hdr = (struct codec_header *)codecbuf;
 258
 259     if (size <= (signed)sizeof(struct codec_header)
 260         || (hdr->magic != CODEC_MAGIC
 261 #ifdef HAVE_RECORDING
 262              && hdr->magic != CODEC_ENC_MAGIC
 263 #endif
 264             )
 265         || hdr->target_id != TARGET_ID
 266         || hdr->load_addr != codecbuf
 267         || hdr->end_addr > codecbuf + CODEC_SIZE)
 268     {
 269         logf("codec header error");
 270         return CODEC_ERROR;
 271     }
 272 #else /* SIMULATOR */
 273     void *pd;
 274
 275     hdr = sim_codec_load_ram(codecptr, size, ptr2, bufwrap, &pd);
 276     api->discard_codec();
 277
 278     if (pd == NULL)
 279         return CODEC_ERROR;
 280
 281     if (hdr == NULL
 282         || hdr->magic != CODEC_MAGIC
 283         || hdr->target_id != TARGET_ID) {
 284         sim_codec_close(pd);
 285         return CODEC_ERROR;
 286     }
 287 #endif /* SIMULATOR */
 288     if (hdr->api_version > CODEC_API_VERSION
 289         || hdr->api_version < CODEC_MIN_API_VERSION) {
 290         sim_codec_close(pd);
 291         return CODEC_ERROR;
 292     }
 293
 294     invalidate_icache();
 295     status = hdr->entry_point(api);
 296
 297     sim_codec_close(pd);
 298
 299     return status;
 300 }
 301
 302 int codec_load_file(const char *plugin, struct codec_api *api)
 303 {
 304     char msgbuf[80];
 305     char path[MAX_PATH];
 306     int fd;
 307     int rc;
 308
 309     codec_get_full_path(path, plugin);
 310
 311     fd = open(path, O_RDONLY);
 312     if (fd < 0) {
 313         snprintf(msgbuf, sizeof(msgbuf)-1, "Couldn't load codec: %s", path);
 314         logf("Codec load error:%d", fd);
 315         gui_syncsplash(HZ*2, true, msgbuf);
 316         return fd;
 317     }
 318
 319     rc = read(fd, &codecbuf[0], CODEC_SIZE);
 320     close(fd);
 321     if (rc <= 0) {
 322         logf("Codec read error");
 323         return CODEC_ERROR;
 324     }
 325
 326     return codec_load_ram(codecbuf, (size_t)rc, NULL, 0, api);
 327 }