static void reinit_subdec(struct MPContext *mpctx, struct track *track,
struct dec_sub *dec_sub)
{
struct MPOpts *opts = mpctx->opts;
if (sub_is_initialized(dec_sub))
return;
struct sh_video *sh_video =
mpctx->d_video ? mpctx->d_video->header->video : NULL;
int w = sh_video ? sh_video->disp_w : 0;
int h = sh_video ? sh_video->disp_h : 0;
float fps = sh_video ? sh_video->fps : 25;
init_sub_renderer(mpctx);
sub_set_video_res(dec_sub, w, h);
sub_set_video_fps(dec_sub, fps);
sub_set_ass_renderer(dec_sub, mpctx->ass_library, mpctx->ass_renderer);
sub_init_from_sh(dec_sub, track->stream);
if (mpctx->ass_renderer) {
mp_ass_configure_fonts(mpctx->ass_renderer, opts->sub_text_style,
mpctx->global, mpctx->ass_log);
}
// Don't do this if the file has video/audio streams. Don't do it even
// if it has only sub streams, because reading packets will change the
// demuxer position.
if (!track->preloaded && track->is_external && !opts->sub_clear_on_seek) {
demux_seek(track->demuxer, 0, SEEK_ABSOLUTE);
track->preloaded = sub_read_all_packets(dec_sub, track->stream);
}
}
static void enable_output(struct sd *sd, bool enable)
{
struct sd_ass_priv *ctx = sd->priv;
if (enable == !!ctx->ass_renderer)
return;
if (ctx->ass_renderer) {
ass_renderer_done(ctx->ass_renderer);
ctx->ass_renderer = NULL;
} else {
ctx->ass_renderer = ass_renderer_init(ctx->ass_library);
mp_ass_configure_fonts(ctx->ass_renderer, sd->opts->sub_text_style,
sd->global, sd->log);
}
}
static void init_sub_renderer(struct MPContext *mpctx)
{
struct MPOpts *opts = mpctx->opts;
if (mpctx->ass_renderer)
return;
if (!mpctx->ass_log)
mpctx->ass_log = mp_log_new(mpctx, mpctx->global->log, "!libass");
mpctx->ass_library = mp_ass_init(mpctx->global, mpctx->ass_log);
add_subtitle_fonts_from_sources(mpctx);
if (opts->ass_style_override)
ass_set_style_overrides(mpctx->ass_library, opts->ass_force_style_list);
mpctx->ass_renderer = ass_renderer_init(mpctx->ass_library);
mp_ass_configure_fonts(mpctx->ass_renderer, opts->sub_text_style,
mpctx->global, mpctx->ass_log);
}