source: roaraudio/roard/codecfilter.c @ 201:dc3825656149

//codecfilter.c:

#include "roard.h"

struct roar_codecfilter g_codecfilter[] = {
 {-1,                     "null", "null codec filter", NULL,                      NULL, NULL, NULL, NULL, NULL, NULL},

 {ROAR_CODEC_OGG_GENERAL, "cmd",  "ogg123",
  "ogg123 -q -d raw -f - -",
  cf_cmd_open, NULL, NULL, NULL, NULL, NULL},

 {ROAR_CODEC_FLAC, "cmd",  "ogg123",
#if BYTE_ORDER == BIG_ENDIAN
  "flac --silent --force-raw-format --sign=signed --endian=big -d - -o -",
#elif BYTE_ORDER == LITTLE_ENDIAN
  "flac --silent --force-raw-format --sign=signed --endian=little -d - -o -",
#else
  "false",
#endif
  cf_cmd_open, NULL, NULL, NULL, NULL, NULL},

 {-1, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL} // end of list
};

void print_codecfilterlist (void) {
 int i;

 for (i = 0; g_codecfilter[i].name != NULL; i++) {
  printf("  %-8s %-8s - %s (options: %s)\n",
             roar_codec2str(g_codecfilter[i].codec),
             g_codecfilter[i].name,
             g_codecfilter[i].desc,
             g_codecfilter[i].options);
 }
}

int codecfilter_open (CODECFILTER_USERDATA_T * inst,
                 int * codecfilter_id, char * codecfilter /* NOTE: this is not part of struct roar_codecfilter's def! */,
                 int codec, struct roar_stream_server * info) {
 int i;
 struct roar_codecfilter   * filter = NULL;

 *codecfilter_id = -1;

 for (i = 0; g_codecfilter[i].name != NULL; i++) {
  if ( g_codecfilter[i].codec == codec ) {
   if ( !codecfilter || strcmp(codecfilter, g_codecfilter[i].name) == 0 ) {
    *codecfilter_id = i;
    filter = &g_codecfilter[i];
    break;
   }
  }
 }

 info->codecfilter = *codecfilter_id;

 if (*codecfilter_id != -1) {
  if ( filter->open )
   return filter->open(inst, codec, info, filter);
  return 0;
 }

 return -1;
}

int codecfilter_close(CODECFILTER_USERDATA_T   inst, int codecfilter) {
 ROAR_DBG("codecfilter_close(inst=%p, codecfilter=%i) = ?", inst, codecfilter);

 if ( codecfilter == -1 )
  return -1;

 if ( g_codecfilter[codecfilter].close )
  return g_codecfilter[codecfilter].close(inst);

 return 0;
}

int codecfilter_pause(CODECFILTER_USERDATA_T   inst, int codecfilter, int newstate) {
 if ( codecfilter == -1 )
  return -1;

 if ( g_codecfilter[codecfilter].pause )
  return g_codecfilter[codecfilter].pause(inst, newstate);

 return 0;
}

int codecfilter_write(CODECFILTER_USERDATA_T   inst, int codecfilter, char * buf, int len) {
 if ( codecfilter == -1 )
  return -1;

 if ( g_codecfilter[codecfilter].write )
  return g_codecfilter[codecfilter].write(inst, buf, len);

 return 0;
}

int codecfilter_read (CODECFILTER_USERDATA_T   inst, int codecfilter, char * buf, int len) {
 if ( codecfilter == -1 )
  return -1;

 if ( g_codecfilter[codecfilter].read )
  return g_codecfilter[codecfilter].read(inst, buf, len);

 return 0;
}

int codecfilter_flush(CODECFILTER_USERDATA_T   inst, int codecfilter) {
 if ( codecfilter == -1 )
  return -1;

 if ( g_codecfilter[codecfilter].flush )
  return g_codecfilter[codecfilter].flush(inst);

 return 0;
}

//ll