static av_cold int init(AVFilterContext *ctx)
{
AssContext *ass = ctx->priv;
if (!ass->filename) {
av_log(ctx, AV_LOG_ERROR, "No filename provided!\n");
return AVERROR(EINVAL);
}
ass->library = ass_library_init();
if (!ass->library) {
av_log(ctx, AV_LOG_ERROR, "Could not initialize libass.\n");
return AVERROR(EINVAL);
}
ass_set_message_cb(ass->library, ass_log, ctx);
ass_set_fonts_dir(ass->library, ass->fontsdir);
ass->renderer = ass_renderer_init(ass->library);
if (!ass->renderer) {
av_log(ctx, AV_LOG_ERROR, "Could not initialize libass renderer.\n");
return AVERROR(EINVAL);
}
return 0;
}
static void
_init()
{
static bool init_done = false;
void ass_init()
{
#ifdef USE_LIBASS
ass_library = ass_library_init();
if (!ass_library) {
printf("ass_library_init failed!\n");
exit(EXIT_FAILURE);
}
#ifdef DEBUG
ass_set_message_cb(ass_library, msg_callback, NULL);
#endif
ass_renderer = ass_renderer_init(ass_library);
if (!ass_renderer) {
printf("ass_renderer_init failed!\n");
exit(EXIT_FAILURE);
}
ass_set_fonts(ass_renderer, NULL, "Sans", 1, NULL, 1);
#endif
}
SubtitleProcessorLibASS::SubtitleProcessorLibASS()
: m_ass(0)
, m_renderer(0)
, m_track(0)
{
if (!ass::api::loaded())
return;
m_ass = ass_library_init();
if (!m_ass) {
qWarning("ass_library_init failed!");
return;
}
ass_set_message_cb(m_ass, msg_callback, NULL);
m_renderer = ass_renderer_init(m_ass);
if (!m_renderer) {
qWarning("ass_renderer_init failed!");
return;
}
#if LIBASS_VERSION >= 0x01000000
ass_set_shaper(m_renderer, ASS_SHAPING_SIMPLE);
#endif
//ass_set_frame_size(m_renderer, frame_w, frame_h);
//ass_set_fonts(m_renderer, NULL, "Sans", 1, NULL, 1); //must set!
ass_set_fonts(m_renderer, NULL, NULL, 1, NULL, 1);
}
ASS_Library* ass_init(void) {
ASS_Library* priv;
char* path = get_path("fonts");
priv = ass_library_init();
ass_set_message_cb(priv, message_callback, NULL);
ass_set_fonts_dir(priv, path);
ass_mp_reset_config(priv);
free(path);
return priv;
}
ASS_Library* ass_init(void) {
ASS_Library* priv;
char* path = get_path("fonts");
priv = ass_library_init();
ass_set_message_cb(priv, message_callback, NULL);
ass_set_fonts_dir(priv, path);
ass_set_extract_fonts(priv, extract_embedded_fonts);
ass_set_style_overrides(priv, ass_force_style_list);
free(path);
return priv;
}
int main(int argc, char *argv[])
{
/*if (argc < 3) {
printf("usage: %s <image file> <subtitle file> <time>\n", argv[0]);
exit(1);
}*/
char *subfile = "in.ass";
double tm = 10;
ass_library = ass_library_init();
if (!ass_library) {
printf("ass_library_init failed!\n");
exit(1);
}
ass_set_message_cb(ass_library, msg_callback, NULL);
ass_renderer = ass_renderer_init(ass_library);
if (!ass_renderer) {
printf("ass_renderer_init failed!\n");
exit(1);
}
track = ass_read_file(ass_library, subfile, NULL);
if (!track) {
printf("track init failed!\n");
return 1;
}
int frame_w = track->PlayResX;
int frame_h = track->PlayResY;
ass_set_frame_size(ass_renderer, frame_w, frame_h);
ass_set_fonts(ass_renderer, "font.ttf", "Sans", 1, NULL, 1);
ass_set_cache_limits(ass_renderer, 100, 1);
SDL_Init(SDL_INIT_VIDEO);
SDL_CreateWindowAndRenderer(frame_w, frame_h, 0, &window, &renderer);
SDL_SetRenderDrawColor(renderer, 47, 163, 254, 255);
emscripten_set_main_loop(loop, 0, 1);
//SDL_Quit();
//ass_free_track(track);
//ass_renderer_done(ass_renderer);
//ass_library_done(ass_library);
return 0;
}
void CacheFonts() {
// Initialize the cache worker thread
cache_queue = agi::dispatch::Create();
// Initialize libass
library = ass_library_init();
ass_set_message_cb(library, msg_callback, nullptr);
// Initialize a renderer to force fontconfig to update its cache
cache_queue->Async([]{
auto ass_renderer = ass_renderer_init(library);
ass_set_fonts(ass_renderer, nullptr, "Sans", 1, CONFIG_PATH, true);
ass_renderer_done(ass_renderer);
});
}
static void init(int frame_w, int frame_h) {
ass_library = ass_library_init();
if (!ass_library) {
printf("ass_library_init failed!\n");
exit(1);
}
ass_set_message_cb(ass_library, msg_callback, NULL);
ass_renderer = ass_renderer_init(ass_library);
if (!ass_renderer) {
printf("ass_renderer_init failed!\n");
exit(1);
}
ass_set_frame_size(ass_renderer, frame_w, frame_h);
ass_set_fonts(ass_renderer, NULL, "Sans", 1, NULL, 1);
}
CDVDSubtitlesLibass::CDVDSubtitlesLibass()
{
//Setting the font directory to the temp dir(where mkv fonts are extracted to)
std::string strPath = "special://temp/fonts/";
CLog::Log(LOGINFO, "CDVDSubtitlesLibass: Creating ASS library structure");
m_library = ass_library_init();
if(!m_library)
return;
ass_set_message_cb(m_library, libass_log, this);
CLog::Log(LOGINFO, "CDVDSubtitlesLibass: Initializing ASS library font settings");
// libass uses fontconfig (system lib) which is not wrapped
// so translate the path before calling into libass
ass_set_fonts_dir(m_library, CSpecialProtocol::TranslatePath(strPath).c_str());
ass_set_extract_fonts(m_library, 1);
ass_set_style_overrides(m_library, NULL);
CLog::Log(LOGINFO, "CDVDSubtitlesLibass: Initializing ASS Renderer");
m_renderer = ass_renderer_init(m_library);
if(!m_renderer)
return;
//Setting default font to the Arial in \media\fonts (used if FontConfig fails)
const std::shared_ptr<CSettings> settings = CServiceBroker::GetSettingsComponent()->GetSettings();
strPath = URIUtils::AddFileToFolder("special://home/media/Fonts/", settings->GetString(CSettings::SETTING_SUBTITLES_FONT));
if (!XFILE::CFile::Exists(strPath))
strPath = URIUtils::AddFileToFolder("special://xbmc/media/Fonts/", settings->GetString(CSettings::SETTING_SUBTITLES_FONT));
int fc = !settings->GetBool(CSettings::SETTING_SUBTITLES_OVERRIDEASSFONTS);
ass_set_margins(m_renderer, 0, 0, 0, 0);
ass_set_use_margins(m_renderer, 0);
ass_set_font_scale(m_renderer, 1);
// libass uses fontconfig (system lib) which is not wrapped
// so translate the path before calling into libass
ass_set_fonts(m_renderer, CSpecialProtocol::TranslatePath(strPath).c_str(), "Arial", fc, NULL, 1);
}
static void
_init()
{
static bool init_done = false;
void ass_init()
{
#ifdef DEBUG
void msg_callback(int level, const char* fmt, va_list va, void* data)
{
if (wf_debug < 2 || level > 6) return;
printf("libass: ");
vprintf(fmt, va);
printf("\n");
}
#endif
#ifdef USE_LIBASS
ass_library = ass_library_init();
if (!ass_library) {
printf("ass_library_init failed!\n");
exit(EXIT_FAILURE);
}
#ifdef DEBUG
ass_set_message_cb(ass_library, msg_callback, NULL);
#endif
ass_renderer = ass_renderer_init(ass_library);
if (!ass_renderer) {
printf("ass_renderer_init failed!\n");
exit(EXIT_FAILURE);
}
ass_set_fonts(ass_renderer, NULL, "Sans", 1, NULL, 1);
#endif
}
static void VS_CC assInit(VSMap *in, VSMap *out, void **instanceData,
VSNode *node, VSCore *core, const VSAPI *vsapi)
{
AssData *d = (AssData *) * instanceData;
vsapi->setVideoInfo(d->vi, 2, node);
d->ass_library = ass_library_init();
if(!d->ass_library) {
vsapi->setError(out, "failed to initialize ASS library");
return;
}
ass_set_message_cb(d->ass_library, assDebugCallback, (void *)d->debuglevel);
ass_set_extract_fonts(d->ass_library, 0);
ass_set_style_overrides(d->ass_library, 0);
d->ass_renderer = ass_renderer_init(d->ass_library);
if(!d->ass_renderer) {
vsapi->setError(out, "failed to initialize ASS renderer");
return;
}
ass_set_font_scale(d->ass_renderer, d->scale);
ass_set_frame_size(d->ass_renderer, d->vi[0].width, d->vi[0].height);
ass_set_margins(d->ass_renderer,
d->margins[0], d->margins[1], d->margins[2], d->margins[3]);
ass_set_use_margins(d->ass_renderer, 1);
if(d->linespacing)
ass_set_line_spacing(d->ass_renderer, d->linespacing);
if(d->sar) {
ass_set_aspect_ratio(d->ass_renderer,
(double)d->vi[0].width /
d->vi[0].height * d->sar, 1);
}
if(d->fontdir)
ass_set_fonts_dir(d->ass_library, d->fontdir);
ass_set_fonts(d->ass_renderer, NULL, NULL, 1, NULL, 1);
if(d->file == NULL) {
char *str, *text, x[16], y[16];
size_t siz;
const char *fmt = "[Script Info]\n"
"ScriptType: v4.00+\n"
"PlayResX: %s\n"
"PlayResY: %s\n"
"[V4+ Styles]\n"
"Format: Name, Fontname, Fontsize, PrimaryColour, SecondaryColour, OutlineColour, BackColour, Bold, Italic, Underline, StrikeOut, ScaleX, ScaleY, Spacing, Angle, BorderStyle, Outline, Shadow, Alignment, MarginL, MarginR, MarginV, Encoding\n"
"Style: Default,%s\n"
"[Events]\n"
"Format: Layer, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, Text\n"
"Dialogue: 0,0:00:00.00,0:00:10.00,Default,,0,0,0,,%s\n";
sprintf(x, "%d", d->vi[0].width);
sprintf(y, "%d", d->vi[0].height);
text = strrepl(d->text, "\n", "\\N");
siz = (strlen(fmt) + strlen(x) + strlen(y) + strlen(d->style) +
strlen(text)) * sizeof(char);
str = malloc(siz);
sprintf(str, fmt, x, y, d->style, text);
free(text);
d->ass = ass_new_track(d->ass_library);
ass_process_data(d->ass, str, strlen(str));
free(str);
} else {
d->ass = ass_read_file(d->ass_library, (char *)d->file, (char *)d->charset);
}
if(!d->ass) {
vsapi->setError(out, "unable to parse input file");
return;
}
}
void LibassSubtitlesProvider::CacheFonts() {
ass_library = ass_library_init();
ass_set_message_cb(ass_library, msg_callback, NULL);
new FontConfigCacheThread(ass_library, &cache_worker);
}
