static int init(struct sd *sd)
{
struct MPOpts *opts = sd->opts;
if (!sd->ass_library || !sd->ass_renderer || !sd->ass_lock || !sd->codec)
return -1;
struct sd_ass_priv *ctx = talloc_zero(NULL, struct sd_ass_priv);
sd->priv = ctx;
ctx->extend_event = -1;
ctx->is_converted = sd->converted_from != NULL;
pthread_mutex_lock(sd->ass_lock);
ctx->ass_track = ass_new_track(sd->ass_library);
if (!ctx->is_converted)
ctx->ass_track->track_type = TRACK_TYPE_ASS;
ctx->shadow_track = ass_new_track(sd->ass_library);
ctx->shadow_track->PlayResX = 384;
ctx->shadow_track->PlayResY = 288;
mp_ass_add_default_styles(ctx->shadow_track, opts);
if (sd->extradata) {
ass_process_codec_private(ctx->ass_track, sd->extradata,
sd->extradata_len);
}
mp_ass_add_default_styles(ctx->ass_track, opts);
pthread_mutex_unlock(sd->ass_lock);
return 0;
}
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;
}
ASS_Track* ass_default_track(ASS_Library* library) {
ASS_Track* track = ass_new_track(library);
track->track_type = TRACK_TYPE_ASS;
track->Timer = 100.;
track->PlayResY = 360;
track->WrapStyle = 0;
if (track->n_styles == 0) {
// stupid hack to stop libass to add a default track
// in front in ass_read_styles - this makes it impossible
// to completely override the "Default" track.
int sid = ass_alloc_style(track);
init_style(track->styles + sid, "MPlayerDummy", track->PlayResY);
}
if (ass_styles_file)
ass_read_styles(track, ass_styles_file, sub_cp);
if (track->default_style <= 0) {
int sid = ass_alloc_style(track);
init_style(track->styles + sid, "Default", track->PlayResY);
track->default_style = sid;
if(fake_video) {
track->PlayResX = 480;
track->PlayResY = 270;
}
}
ass_process_force_style(track);
return track;
}
ASS_Track *mp_ass_default_track(ASS_Library *library, struct MPOpts *opts)
{
ASS_Track *track = ass_new_track(library);
track->track_type = TRACK_TYPE_ASS;
track->Timer = 100.;
track->PlayResY = MP_ASS_FONT_PLAYRESY;
track->WrapStyle = 0;
if (opts->ass_styles_file && opts->ass_style_override)
ass_read_styles(track, opts->ass_styles_file, sub_cp);
if (track->n_styles == 0) {
track->Kerning = true;
int sid = ass_alloc_style(track);
track->default_style = sid;
ASS_Style *style = track->styles + sid;
style->Name = strdup("Default");
style->Alignment = 2;
mp_ass_set_style(style, opts->sub_text_style);
}
if (opts->ass_style_override)
ass_process_force_style(track);
return track;
}
static csri_inst *libass_init_stream(csri_rend *renderer,
const void *header, size_t headerlen,
struct csri_openflag *flags)
{
csri_inst *rv;
if (renderer != &csri_libass)
return NULL;
rv = (csri_inst *)malloc(sizeof(csri_inst));
if (!rv)
return NULL;
rv->ass_renderer = ass_renderer_init(renderer->ass_library);
if (!rv->ass_renderer) {
free(rv);
return NULL;
}
ass_set_font_scale(rv->ass_renderer, 1.);
ass_set_fonts(rv->ass_renderer, NULL, "Sans");
rv->ass_track = ass_new_track(csri_libass.ass_library);
if (!rv->ass_track) {
ass_renderer_done(rv->ass_renderer);
free(rv);
return NULL;
}
ass_process_codec_private(rv->ass_track, (void *)header, headerlen);
return rv;
}
static int init(struct sd *sd)
{
struct MPOpts *opts = sd->opts;
if (!sd->ass_library || !sd->ass_renderer || !sd->codec)
return -1;
struct sd_ass_priv *ctx = talloc_zero(NULL, struct sd_ass_priv);
sd->priv = ctx;
ctx->is_converted = sd->converted_from != NULL;
if (sd->ass_track) {
ctx->ass_track = sd->ass_track;
} else {
ctx->ass_track = ass_new_track(sd->ass_library);
if (!ctx->is_converted)
ctx->ass_track->track_type = TRACK_TYPE_ASS;
}
if (sd->extradata) {
ass_process_codec_private(ctx->ass_track, sd->extradata,
sd->extradata_len);
}
mp_ass_add_default_styles(ctx->ass_track, opts);
return 0;
}
ASS_Track *mp_ass_default_track(ASS_Library *library, struct MPOpts *opts)
{
ASS_Track *track = ass_new_track(library);
track->track_type = TRACK_TYPE_ASS;
track->Timer = 100.;
mp_ass_add_default_styles(track, opts);
return track;
}
ASS_Track* ass_default_track(ASS_Library* library) {
ASS_Track* track = ass_new_track(library);
track->track_type = TRACK_TYPE_ASS;
track->Timer = 100.;
track->PlayResY = 288;
track->WrapStyle = 0;
if (ass_styles_file)
ass_read_styles(track, ass_styles_file, sub_cp);
if (track->n_styles == 0) {
ASS_Style* style;
int sid;
double fs;
uint32_t c1, c2;
sid = ass_alloc_style(track);
style = track->styles + sid;
style->Name = strdup("Default");
style->FontName = (font_fontconfig >= 0 && sub_font_name) ? strdup(sub_font_name) : (font_fontconfig >= 0 && font_name) ? strdup(font_name) : strdup("Sans");
style->treat_fontname_as_pattern = 1;
fs = track->PlayResY * text_font_scale_factor / 100.;
// approximate autoscale coefficients
if (subtitle_autoscale == 2)
fs *= 1.3;
else if (subtitle_autoscale == 3)
fs *= 1.4;
style->FontSize = fs;
if (ass_color) c1 = strtoll(ass_color, NULL, 16);
else c1 = 0xFFFF0000;
if (ass_border_color) c2 = strtoll(ass_border_color, NULL, 16);
else c2 = 0x00000000;
style->PrimaryColour = c1;
style->SecondaryColour = c1;
style->OutlineColour = c2;
style->BackColour = 0x00000000;
style->BorderStyle = 1;
style->Alignment = 2;
style->Outline = 2;
style->MarginL = 10;
style->MarginR = 10;
style->MarginV = 5;
style->ScaleX = 1.;
style->ScaleY = 1.;
}
ass_process_force_style(track);
return track;
}
/*Decode Header of SSA, needed to properly decode demux packets*/
bool CDVDSubtitlesLibass::DecodeHeader(char* data, int size)
{
CSingleLock lock(m_section);
if(!m_library || !data)
return false;
if(!m_track)
{
CLog::Log(LOGINFO, "CDVDSubtitlesLibass: Creating new ASS track");
m_track = ass_new_track(m_library) ;
}
ass_process_codec_private(m_track, data, size);
return true;
}
/*****************************************************************************
* 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;
ASS_Track *p_track;
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;
/* */
p_sys->i_max_stop = VLC_TS_INVALID;
p_sys->p_ass = AssHandleHold( p_dec );
if( !p_sys->p_ass )
{
free( p_sys );
return VLC_EGENERIC;
}
vlc_mutex_init( &p_sys->lock );
p_sys->i_refcount = 1;
/* Add a track */
vlc_mutex_lock( &libass_lock );
p_sys->p_track = p_track = ass_new_track( p_sys->p_ass->p_library );
if( !p_track )
{
vlc_mutex_unlock( &libass_lock );
DecSysRelease( p_sys );
return VLC_EGENERIC;
}
ass_process_codec_private( p_track, p_dec->fmt_in.p_extra, p_dec->fmt_in.i_extra );
vlc_mutex_unlock( &libass_lock );
p_dec->fmt_out.i_cat = SPU_ES;
p_dec->fmt_out.i_codec = VLC_CODEC_RGBA;
return VLC_SUCCESS;
}
void LibASS::initOSD()
{
if (osd_track && osd_style && osd_event && osd_renderer)
return;
osd_track = ass_new_track(ass);
int styleID = ass_alloc_style(osd_track);
osd_style = &osd_track->styles[styleID];
setOSDStyle();
int eventID = ass_alloc_event(osd_track);
osd_event = &osd_track->events[eventID];
osd_event->Start = 0;
osd_event->Duration = 1;
osd_event->Style = styleID;
osd_event->ReadOrder = eventID;
osd_renderer = ass_renderer_init(ass);
ass_set_fonts(osd_renderer, NULL, NULL, 1, NULL, 1);
}
static void init(struct sh_sub *sh, struct osd_state *osd)
{
struct sd_ass_priv *ctx;
if (sh->initialized) {
ctx = sh->context;
} else {
ctx = talloc_zero(NULL, struct sd_ass_priv);
sh->context = ctx;
if (sh->type == 'a') {
ctx->ass_track = ass_new_track(osd->ass_library);
if (sh->extradata)
ass_process_codec_private(ctx->ass_track, sh->extradata,
sh->extradata_len);
} else
ctx->ass_track = mp_ass_default_track(osd->ass_library, sh->opts);
}
assert(osd->ass_track == NULL);
osd->ass_track = ctx->ass_track;
osd->vsfilter_aspect = sh->type == 'a';
osd->ass_track_changed = true;
}
void LibASS::initASS(const QByteArray &ass_data)
{
if (ass_sub_track && ass_sub_renderer)
return;
ass_sub_track = ass_new_track(ass);
if (!ass_data.isEmpty())
{
ass_process_data(ass_sub_track, (char *)ass_data.data(), ass_data.size());
hasASSData = true;
setASSStyle();
}
else
{
ass_alloc_style(ass_sub_track);
ass_sub_track->styles[0].ScaleX = ass_sub_track->styles[0].ScaleY = 1;
overridePlayRes = true;
hasASSData = false;
setASSStyle();
}
ass_sub_renderer = ass_renderer_init(ass);
ass_set_fonts(ass_sub_renderer, NULL, NULL, true, NULL, true);
}
static av_cold int init_subtitles(AVFilterContext *ctx)
{
int j, ret, sid;
int k = 0;
AVDictionary *codec_opts = NULL;
AVFormatContext *fmt = NULL;
AVCodecContext *dec_ctx = NULL;
AVCodec *dec = NULL;
const AVCodecDescriptor *dec_desc;
AVStream *st;
AVPacket pkt;
AssContext *ass = ctx->priv;
/* Init libass */
ret = init(ctx);
if (ret < 0)
return ret;
ass->track = ass_new_track(ass->library);
if (!ass->track) {
av_log(ctx, AV_LOG_ERROR, "Could not create a libass track\n");
return AVERROR(EINVAL);
}
/* Open subtitles file */
ret = avformat_open_input(&fmt, ass->filename, NULL, NULL);
if (ret < 0) {
av_log(ctx, AV_LOG_ERROR, "Unable to open %s\n", ass->filename);
goto end;
}
ret = avformat_find_stream_info(fmt, NULL);
if (ret < 0)
goto end;
/* Locate subtitles stream */
if (ass->stream_index < 0)
ret = av_find_best_stream(fmt, AVMEDIA_TYPE_SUBTITLE, -1, -1, NULL, 0);
else {
ret = -1;
if (ass->stream_index < fmt->nb_streams) {
for (j = 0; j < fmt->nb_streams; j++) {
if (fmt->streams[j]->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE) {
if (ass->stream_index == k) {
ret = j;
break;
}
k++;
}
}
}
}
if (ret < 0) {
av_log(ctx, AV_LOG_ERROR, "Unable to locate subtitle stream in %s\n",
ass->filename);
goto end;
}
sid = ret;
st = fmt->streams[sid];
/* Load attached fonts */
for (j = 0; j < fmt->nb_streams; j++) {
AVStream *st = fmt->streams[j];
if (st->codecpar->codec_type == AVMEDIA_TYPE_ATTACHMENT &&
attachment_is_font(st)) {
const AVDictionaryEntry *tag = NULL;
tag = av_dict_get(st->metadata, "filename", NULL,
AV_DICT_MATCH_CASE);
if (tag) {
av_log(ctx, AV_LOG_DEBUG, "Loading attached font: %s\n",
tag->value);
ass_add_font(ass->library, tag->value,
st->codecpar->extradata,
st->codecpar->extradata_size);
} else {
av_log(ctx, AV_LOG_WARNING,
"Font attachment has no filename, ignored.\n");
}
}
}
/* Initialize fonts */
ass_set_fonts(ass->renderer, NULL, NULL, 1, NULL, 1);
/* Open decoder */
dec = avcodec_find_decoder(st->codecpar->codec_id);
if (!dec) {
av_log(ctx, AV_LOG_ERROR, "Failed to find subtitle codec %s\n",
avcodec_get_name(st->codecpar->codec_id));
return AVERROR(EINVAL);
}
dec_desc = avcodec_descriptor_get(st->codecpar->codec_id);
if (dec_desc && !(dec_desc->props & AV_CODEC_PROP_TEXT_SUB)) {
av_log(ctx, AV_LOG_ERROR,
"Only text based subtitles are currently supported\n");
return AVERROR_PATCHWELCOME;
}
if (ass->charenc)
av_dict_set(&codec_opts, "sub_charenc", ass->charenc, 0);
if (LIBAVCODEC_VERSION_INT >= AV_VERSION_INT(57,26,100))
av_dict_set(&codec_opts, "sub_text_format", "ass", 0);
dec_ctx = avcodec_alloc_context3(dec);
if (!dec_ctx)
return AVERROR(ENOMEM);
ret = avcodec_parameters_to_context(dec_ctx, st->codecpar);
if (ret < 0)
goto end;
/*
* This is required by the decoding process in order to rescale the
* timestamps: in the current API the decoded subtitles have their pts
* expressed in AV_TIME_BASE, and thus the lavc internals need to know the
* stream time base in order to achieve the rescaling.
*
* That API is old and needs to be reworked to match behaviour with A/V.
*/
av_codec_set_pkt_timebase(dec_ctx, st->time_base);
ret = avcodec_open2(dec_ctx, NULL, &codec_opts);
if (ret < 0)
goto end;
if (ass->force_style) {
char **list = NULL;
char *temp = NULL;
char *ptr = av_strtok(ass->force_style, ",", &temp);
int i = 0;
while (ptr) {
av_dynarray_add(&list, &i, ptr);
if (!list) {
ret = AVERROR(ENOMEM);
goto end;
}
ptr = av_strtok(NULL, ",", &temp);
}
av_dynarray_add(&list, &i, NULL);
if (!list) {
ret = AVERROR(ENOMEM);
goto end;
}
ass_set_style_overrides(ass->library, list);
av_free(list);
}
/* Decode subtitles and push them into the renderer (libass) */
if (dec_ctx->subtitle_header)
ass_process_codec_private(ass->track,
dec_ctx->subtitle_header,
dec_ctx->subtitle_header_size);
av_init_packet(&pkt);
pkt.data = NULL;
pkt.size = 0;
while (av_read_frame(fmt, &pkt) >= 0) {
int i, got_subtitle;
AVSubtitle sub = {0};
if (pkt.stream_index == sid) {
ret = avcodec_decode_subtitle2(dec_ctx, &sub, &got_subtitle, &pkt);
if (ret < 0) {
av_log(ctx, AV_LOG_WARNING, "Error decoding: %s (ignored)\n",
av_err2str(ret));
} else if (got_subtitle) {
const int64_t start_time = av_rescale_q(sub.pts, AV_TIME_BASE_Q, av_make_q(1, 1000));
const int64_t duration = sub.end_display_time;
for (i = 0; i < sub.num_rects; i++) {
char *ass_line = sub.rects[i]->ass;
if (!ass_line)
break;
if (LIBAVCODEC_VERSION_INT < AV_VERSION_INT(57,25,100))
ass_process_data(ass->track, ass_line, strlen(ass_line));
else
ass_process_chunk(ass->track, ass_line, strlen(ass_line),
start_time, duration);
}
}
}
av_packet_unref(&pkt);
avsubtitle_free(&sub);
}
end:
av_dict_free(&codec_opts);
avcodec_close(dec_ctx);
avcodec_free_context(&dec_ctx);
avformat_close_input(&fmt);
return ret;
}
ASS_Track *mp_ass_default_track(ASS_Library *library)
{
ASS_Track *track = ass_new_track(library);
track->track_type = TRACK_TYPE_ASS;
track->Timer = 100.;
track->PlayResY = 288;
track->WrapStyle = 0;
if (ass_styles_file)
ass_read_styles(track, ass_styles_file, sub_cp);
if (track->n_styles == 0) {
track->Kerning = true;
int sid = ass_alloc_style(track);
ASS_Style *style = track->styles + sid;
style->Name = strdup("Default");
style->FontName = (font_fontconfig >= 0
&& sub_font_name) ? strdup(sub_font_name)
: (font_fontconfig >= 0
&& font_name) ? strdup(font_name) : strdup("Sans");
style->treat_fontname_as_pattern = 1;
double fs = track->PlayResY * text_font_scale_factor / 100.;
/* The font size is always proportional to video height only;
* real -subfont-autoscale behavior is not implemented.
* Apply a correction that corresponds to about 4:3 aspect ratio
* video to get a size somewhat closer to what non-libass rendering
* would produce with the same text_font_scale_factor
* and subtitle_autoscale.
*/
if (subtitle_autoscale == 2)
fs *= 1.3;
else if (subtitle_autoscale == 3)
fs *= 1.7;
uint32_t c1 = 0xFFFFFF00;
uint32_t c2 = 0x00000000;
if (ass_color)
c1 = strtoll(ass_color, NULL, 16);
if (ass_border_color)
c2 = strtoll(ass_border_color, NULL, 16);
style->FontSize = fs;
style->PrimaryColour = c1;
style->SecondaryColour = c1;
style->OutlineColour = c2;
style->BackColour = 0x00000000;
style->BorderStyle = 1;
style->Alignment = 2;
style->Outline = fs / 16;
style->MarginL = 10;
style->MarginR = 10;
style->MarginV = 5;
style->ScaleX = 1.;
style->ScaleY = 1.;
}
ass_process_force_style(track);
return track;
}
/*****************************************************************************
* 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->pf_flush = Flush;
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];
bool found = false;
/* Check mimetype*/
if( !strcasecmp( p_attach->psz_mime, "application/x-truetype-font" ) )
found = true;
/* Then extension */
else if( !found && strlen( p_attach->psz_name ) > 4 )
{
char *ext = p_attach->psz_name + strlen( p_attach->psz_name ) - 4;
if( !strcasecmp( ext, ".ttf" ) || !strcasecmp( ext, ".otf" ) || !strcasecmp( ext, ".ttc" ) )
found = true;
}
if( found )
{
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 );
#if defined( __ANDROID__ )
const char *psz_font = "/system/fonts/DroidSans-Bold.ttf";
const char *psz_family = "Droid Sans Bold";
#elif defined( __APPLE__ )
const char *psz_font = NULL; /* We don't ship a default font with VLC */
const char *psz_family = "Helvetica Neue"; /* Use HN if we can't find anything more suitable - Arial is not on all Apple platforms */
#else
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 */
#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 );
#endif
ass_set_fonts( p_renderer, psz_font, psz_family, 1, NULL, 1 ); // setup default font/family
#if defined(_WIN32)
if( p_dialog )
{
dialog_ProgressSet( p_dialog, NULL, 1.0 );
dialog_ProgressDestroy( p_dialog );
}
#endif
#else
ass_set_fonts( p_renderer, psz_font, psz_family, 1, 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;
}
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;
}
static void *ass_reader_thread(void *)
{
set_threadname("ass_reader_thread");
while (!sem_wait(&ass_sem)) {
if (!ass_reader_running)
break;
ass_data *a = (ass_data *) ass_queue.pop();
if (!a) {
if (!ass_reader_running)
break;
continue;
}
OpenThreads::ScopedLock<OpenThreads::Mutex> m_lock(ass_mutex);
std::map<int,ASS_Track*>::iterator it = ass_map.find(a->pid);
ASS_Track *track;
if (it == ass_map.end()) {
CFrameBuffer *fb = CFrameBuffer::getInstance();
int xres = fb->getScreenWidth(true);
int yres = fb->getScreenHeight(true);
if (!ass_library) {
ass_library = ass_library_init();
ass_set_extract_fonts(ass_library, 1);
ass_set_style_overrides(ass_library, NULL);
ass_renderer = ass_renderer_init(ass_library);
ass_set_frame_size(ass_renderer, xres, yres);
ass_set_margins(ass_renderer, 3 * yres / 100, 3 * yres / 100, 3 * xres / 100, 3 * xres / 100);
ass_set_use_margins(ass_renderer, 1);
ass_set_hinting(ass_renderer, ASS_HINTING_LIGHT);
ass_set_aspect_ratio(ass_renderer, 1.0, 1.0);
ass_font = *sub_font_file;
ass_set_fonts(ass_renderer, ass_font.c_str(), "Arial", 0, NULL, 1);
}
track = ass_new_track(ass_library);
track->PlayResX = xres;
track->PlayResY = yres;
ass_size = sub_font_size;
ass_set_font_scale(ass_renderer, ((double) ass_size)/ASS_CUSTOM_FONT_SIZE);
if (a->c->subtitle_header) {
std::string ass_hdr = ass_subtitle_header_default();
if (ass_hdr.compare((char*) a->c->subtitle_header)) {
ass_process_codec_private(track, (char *) a->c->subtitle_header, a->c->subtitle_header_size);
} else {
// This is the FFMPEG default ASS header. Use something more suitable instead:
ass_hdr = ass_subtitle_header_custom();
ass_process_codec_private(track, (char *) ass_hdr.c_str(), ass_hdr.length());
}
}
ass_map[a->pid] = track;
if (a->pid == dvbsub_pid)
ass_track = track;
//fprintf(stderr, "### got subtitle track %d, subtitle header: \n---\n%s\n---\n", pid, c->subtitle_header);
} else
track = it->second;
for (unsigned int i = 0; i < a->sub.num_rects; i++)
if (a->sub.rects[i]->ass)
ass_process_data(track, a->sub.rects[i]->ass, strlen(a->sub.rects[i]->ass));
avsubtitle_free(&a->sub);
delete a;
}
ass_reader_running = false;
pthread_exit(NULL);
}
/*****************************************************************************
* 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];
bool found = false;
/* Check mimetype*/
if( !strcasecmp( p_attach->psz_mime, "application/x-truetype-font" ) )
found = true;
/* Then extension */
else if( !found && strlen( p_attach->psz_name ) > 4 )
{
char *ext = p_attach->psz_name + strlen( p_attach->psz_name ) - 4;
if( !strcasecmp( ext, ".ttf" ) || !strcasecmp( ext, ".otf" ) || !strcasecmp( ext, ".ttc" ) )
found = true;
}
if( found )
{
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 );
#if defined( __ANDROID__ )
const char *psz_font = "/system/fonts/DroidSans-Bold.ttf";
const char *psz_family = "Droid Sans Bold";
#elif defined (__APPLE__)
#if !TARGET_OS_IPHONE
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 */
#else
CFURLRef fileURL;
fileURL = CFBundleCopyResourceURL(CFBundleGetMainBundle(), CFSTR("OpenSans-Regular.ttf"),
NULL,
NULL);
if (!fileURL)
return VLC_EGENERIC;
CFStringRef urlString = CFURLCopyFileSystemPath(fileURL, kCFURLPOSIXPathStyle);
CFRelease(fileURL);
if (!urlString)
return VLC_EGENERIC;
CFIndex length = CFStringGetLength(urlString);
if (!length)
return VLC_EGENERIC;
length++;
char *psz_path = (char *)malloc(length);
CFStringGetCString(urlString, psz_path, length, kCFStringEncodingUTF8);
CFRelease(urlString);
const char *psz_font = (const char *)strdup(psz_path);
free(psz_path);
const char *psz_family = "Open Sans";
#endif
#else
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 */
#endif
#ifdef HAVE_FONTCONFIG
#if defined(_WIN32) || defined(__APPLE__)
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 );
#endif
ass_set_fonts( p_renderer, psz_font, psz_family, true, NULL, 1 ); // setup default font/family
#if defined(_WIN32) || defined(__APPLE__)
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;
}
