void *ai_audio_nav_file_info_image(ai_image_size_t *size)
{
if (!ai_async_audio_nav_file_info_image(size))
return NULL;
do
{
AI_SYNC_TASK_CALL_BACK();
ai_async_cmd_task();
} while( !is_ai_async_cmd_finished() );
return (void *) ai_async_cmd_out_u32();
}
static void track_changed_task(struct state_machine_context *state_m)
{
// By default, the command executed is asynchronous.
state_m->async_cmd = true;
Ai_player_flag_t player_flag_temp;
switch (state_m->state)
{
case STATE_TRACK_CHANGED_ENTRY_POINT:
memset(&state_m->info, 0, sizeof(struct file_info));
ai_async_audio_nav_file_info_duration();
state_m->state = STATE_TRACK_CHANGED_TOTAL_TIME;
break;
// Record total time info and call file name.
case STATE_TRACK_CHANGED_TOTAL_TIME:
state_m->info.total_time = ai_async_cmd_out_u32();
ai_async_audio_nav_getname();
state_m->state = STATE_TRACK_CHANGED_FILE_NAME;
break;
// Record file name information and call for artist metadata.
case STATE_TRACK_CHANGED_FILE_NAME:
unicode2ascii((char *) state_m->info.name,
(const char *) ai_async_cmd_out_PtrArrayU8(),
Min(ai_async_cmd_out_SizeArrayU8(), STR_MAX_LENGTH*2));
ai_async_audio_nav_file_info_artist();
state_m->state = STATE_TRACK_CHANGED_ARTIST;
break;
// Record artist metadata and call title metadata.
case STATE_TRACK_CHANGED_ARTIST:
unicode2ascii((char *) state_m->info.artist,
(const char *) ai_async_cmd_out_PtrArrayU8(),
Min(ai_async_cmd_out_SizeArrayU8(), STR_MAX_LENGTH*2));
ai_async_audio_nav_file_info_title();
state_m->state = STATE_TRACK_CHANGED_TITLE;
break;
// Record title metadata.
case STATE_TRACK_CHANGED_TITLE:
unicode2ascii((char *) state_m->info.title,
(const char *) ai_async_cmd_out_PtrArrayU8(),
Min(ai_async_cmd_out_SizeArrayU8(), STR_MAX_LENGTH*2));
#if defined(SUPPORT_EMBEDDED_COVER_ARTS) && SUPPORT_EMBEDDED_COVER_ARTS == true
state_m->info.size.width = 100;
state_m->info.size.height = 100;
ai_async_audio_nav_file_info_image(&state_m->info.size);
state_m->state = STATE_TRACK_CHANGED_IMAGE;
#else
ai_async_audio_ctrl_status();
state_m->state = STATE_TRACK_CHECK_RESUME;
#endif
break;
// Record image data.
case STATE_TRACK_CHANGED_IMAGE:
state_m->info.image_data = (void *) ai_async_cmd_out_u32();
ai_async_audio_ctrl_status();
state_m->state = STATE_TRACK_CHECK_RESUME;
break;
// Resume the track
case STATE_TRACK_CHANGED_RESUME:
state_m->async_cmd = false;
state_m->state = state_m->recorded_state;
break;
// Check if the device is in pause before sending a ai_async_audio_ctrl_resume()
// command.
case STATE_TRACK_CHECK_RESUME:
player_flag_temp.all = ai_async_cmd_out_u32();
if (player_flag_temp.status == PLAYER_FLAG_PAUSE)
ai_async_audio_ctrl_resume();
state_m->state = STATE_TRACK_CHANGED_RESUME;
break;
default:
return;
}
// Error management
if (state_m->cmd_status == false)
state_m->state = STATE_DEVICE_DISCONNECTED;
}
