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;
}
void ass_library_done(ASS_Library *priv)
{
if (priv) {
ass_set_fonts_dir(priv, NULL);
ass_set_style_overrides(priv, NULL);
ass_clear_fonts(priv);
free(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_mp_reset_config(priv);
free(path);
return priv;
}
ass_library_t* ass_init(void) {
ass_library_t* priv;
char* path = get_path("fonts");
priv = ass_library_init();
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;
}
csri_rend *csri_renderer_default()
{
csri_libass.ass_library = ass_library_init();
if (!csri_libass.ass_library)
return NULL;
ass_set_fonts_dir(csri_libass.ass_library, "");
ass_set_extract_fonts(csri_libass.ass_library, 0);
ass_set_style_overrides(csri_libass.ass_library, NULL);
return &csri_libass;
}
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;
}
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);
}
void LibASS::clearFonts()
{
ass_clear_fonts(ass);
ass_set_fonts_dir(ass, NULL);
}
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;
}
}
/*****************************************************************************
* Create: Open libass decoder.
*****************************************************************************/
static int Create( vlc_object_t *p_this )
{
decoder_t *p_dec = (decoder_t *)p_this;
decoder_sys_t *p_sys;
if( p_dec->fmt_in.i_codec != VLC_CODEC_SSA )
return VLC_EGENERIC;
p_dec->pf_decode_sub = DecodeBlock;
p_dec->p_sys = p_sys = malloc( sizeof( decoder_sys_t ) );
if( !p_sys )
return VLC_ENOMEM;
/* */
vlc_mutex_init( &p_sys->lock );
p_sys->i_refcount = 1;
memset( &p_sys->fmt, 0, sizeof(p_sys->fmt) );
p_sys->i_max_stop = VLC_TS_INVALID;
p_sys->p_library = NULL;
p_sys->p_renderer = NULL;
p_sys->p_track = NULL;
/* Create libass library */
ASS_Library *p_library = p_sys->p_library = ass_library_init();
if( !p_library )
{
msg_Warn( p_dec, "Libass library creation failed" );
DecSysRelease( p_sys );
return VLC_EGENERIC;
}
/* load attachments */
input_attachment_t **pp_attachments;
int i_attachments;
if( decoder_GetInputAttachments( p_dec, &pp_attachments, &i_attachments ))
{
i_attachments = 0;
pp_attachments = NULL;
}
for( int k = 0; k < i_attachments; k++ )
{
input_attachment_t *p_attach = pp_attachments[k];
if( !strcasecmp( p_attach->psz_mime, "application/x-truetype-font" ) )
{
msg_Dbg( p_dec, "adding embedded font %s", p_attach->psz_name );
ass_add_font( p_sys->p_library, p_attach->psz_name, p_attach->p_data, p_attach->i_data );
}
vlc_input_attachment_Delete( p_attach );
}
free( pp_attachments );
ass_set_extract_fonts( p_library, true );
ass_set_style_overrides( p_library, NULL );
/* Create the renderer */
ASS_Renderer *p_renderer = p_sys->p_renderer = ass_renderer_init( p_library );
if( !p_renderer )
{
msg_Warn( p_dec, "Libass renderer creation failed" );
DecSysRelease( p_sys );
return VLC_EGENERIC;
}
ass_set_use_margins( p_renderer, false);
//if( false )
// ass_set_margins( p_renderer, int t, int b, int l, int r);
ass_set_hinting( p_renderer, ASS_HINTING_LIGHT );
ass_set_font_scale( p_renderer, 1.0 );
ass_set_line_spacing( p_renderer, 0.0 );
const char *psz_font = NULL; /* We don't ship a default font with VLC */
const char *psz_family = "Arial"; /* Use Arial if we can't find anything more suitable */
#ifdef ANDROID
/* is this useful? */
ass_set_fonts_dir( p_library, "/system/fonts" );
/* don't crash libass */
psz_font = "/system/fonts/DroidSansFallback.ttf";
#endif
#ifdef HAVE_FONTCONFIG
#if defined(WIN32)
dialog_progress_bar_t *p_dialog =
dialog_ProgressCreate( p_dec,
_("Building font cache"),
_( "Please wait while your font cache is rebuilt.\n"
"This should take less than a minute." ), NULL );
if( p_dialog )
dialog_ProgressSet( p_dialog, NULL, 0.2 );
#endif
ass_set_fonts( p_renderer, psz_font, psz_family, true, NULL, 1 ); // setup default font/family
#ifdef WIN32
if( p_dialog )
{
dialog_ProgressSet( p_dialog, NULL, 1.0 );
dialog_ProgressDestroy( p_dialog );
}
#endif
#else
/* FIXME you HAVE to give him a font if no fontconfig */
ass_set_fonts( p_renderer, psz_font, psz_family, false, NULL, 1 );
#endif
/* Add a track */
ASS_Track *p_track = p_sys->p_track = ass_new_track( p_sys->p_library );
if( !p_track )
{
DecSysRelease( p_sys );
return VLC_EGENERIC;
}
ass_process_codec_private( p_track, p_dec->fmt_in.p_extra, p_dec->fmt_in.i_extra );
p_dec->fmt_out.i_cat = SPU_ES;
p_dec->fmt_out.i_codec = VLC_CODEC_RGBA;
return VLC_SUCCESS;
}
