static void next_state(void)
{
s_current_state++;
if (s_current_state == s_state_count)
{
if (s_repetitions > 0)
{
s_repetitions--;
}
// we've reached the end of the sequence, repeat
if (s_repetitions == 0)
{
// no more repetitions, stop
bsp_buzzer_stop();
return;
}
// go back to the first state
s_current_state = 0;
}
const bsp_buzzer_state_t* state = &s_states[s_current_state];
if (state->freq > 0)
{
enable_output(s_buzzer,state->freq);
}
else
{
disable_output(s_buzzer);
}
set_timeout(state->ms);
}
static int init(struct sd *sd)
{
struct MPOpts *opts = sd->opts;
struct sd_ass_priv *ctx = talloc_zero(sd, struct sd_ass_priv);
sd->priv = ctx;
char *extradata = sd->codec->extradata;
int extradata_size = sd->codec->extradata_size;
if (strcmp(sd->codec->codec, "ass") != 0) {
ctx->is_converted = true;
ctx->converter = lavc_conv_create(sd->log, sd->codec->codec, extradata,
extradata_size);
if (!ctx->converter)
return -1;
extradata = lavc_conv_get_extradata(ctx->converter);
extradata_size = extradata ? strlen(extradata) : 0;
if (strcmp(sd->codec->codec, "eia_608") == 0)
ctx->duration_unknown = 1;
}
ctx->ass_library = mp_ass_init(sd->global, sd->log);
add_subtitle_fonts(sd);
if (opts->ass_style_override)
ass_set_style_overrides(ctx->ass_library, opts->ass_force_style_list);
ctx->ass_track = ass_new_track(ctx->ass_library);
if (!ctx->is_converted)
ctx->ass_track->track_type = TRACK_TYPE_ASS;
ctx->shadow_track = ass_new_track(ctx->ass_library);
ctx->shadow_track->PlayResX = 384;
ctx->shadow_track->PlayResY = 288;
mp_ass_add_default_styles(ctx->shadow_track, opts);
if (extradata)
ass_process_codec_private(ctx->ass_track, extradata, extradata_size);
mp_ass_add_default_styles(ctx->ass_track, opts);
#if LIBASS_VERSION >= 0x01302000
ass_set_check_readorder(ctx->ass_track, sd->opts->sub_clear_on_seek ? 0 : 1);
#endif
ctx->frame_fps = sd->codec->frame_based;
update_subtitle_speed(sd);
enable_output(sd, true);
ctx->packer = mp_ass_packer_alloc(ctx);
return 0;
}
static void uninit(struct sd *sd)
{
struct sd_ass_priv *ctx = sd->priv;
if (ctx->converter)
lavc_conv_uninit(ctx->converter);
ass_free_track(ctx->ass_track);
ass_free_track(ctx->shadow_track);
enable_output(sd, false);
ass_library_done(ctx->ass_library);
}