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libass: match font attachments based on extension

Instead of only relying on the MIME type, use the file extension as a
fallback for deciding which attachments are fonts and should be fed to
libass.
This also refactors the check into a separate function in mpcommon.
This commit is contained in:
Grigori Goronzy 2010-06-01 22:49:22 +02:00
parent 2fcd4cf73e
commit b784346e78
4 changed files with 21 additions and 8 deletions

View File

@ -1060,10 +1060,7 @@ default: {
if (ass_library) {
for (i = 0; i < demuxer->num_attachments; ++i) {
demux_attachment_t* att = demuxer->attachments + i;
if (use_embedded_fonts &&
att->name && att->type && att->data && att->data_size &&
(strcmp(att->type, "application/x-truetype-font") == 0 ||
strcmp(att->type, "application/x-font") == 0))
if (use_embedded_fonts && attachment_is_font(att))
ass_add_font(ass_library, att->name, att->data, att->data_size);
}
}

View File

@ -297,6 +297,24 @@ int select_audio(demuxer_t* demuxer, int audio_id, char* audio_lang)
return demuxer->audio->id;
}
bool attachment_is_font(struct demux_attachment *att)
{
if (!att->name || !att->type || !att->data || !att->data_size)
return false;
// match against MIME types
if (strcmp(att->type, "application/x-truetype-font") == 0
|| strcmp(att->type, "application/x-font") == 0)
return true;
// fallback: match against file extension
if (strlen(att->name) > 4) {
char *ext = att->name + strlen(att->name) - 4;
if (strcasecmp(ext, ".ttf") == 0 || strcasecmp(ext, ".ttc") == 0
|| strcasecmp(ext, ".otf") == 0)
return true;
}
return false;
}
/* Parse -noconfig common to both programs */
int disable_system_conf=0;
int disable_user_conf=0;

View File

@ -35,6 +35,7 @@ void update_subtitles(struct MPContext *mpctx, struct MPOpts *opts,
void update_teletext(sh_video_t *sh_video, demuxer_t *demuxer, int reset);
int select_audio(demuxer_t* demuxer, int audio_id, char* audio_lang);
void set_osd_subtitle(struct MPContext *mpctx, subtitle *subs);
bool attachment_is_font(struct demux_attachment *att);
extern int disable_system_conf;
extern int disable_user_conf;

View File

@ -3756,10 +3756,7 @@ if (opts->ass_enabled && ass_library) {
struct demuxer *d = mpctx->sources[j].demuxer;
for (int i = 0; i < d->num_attachments; i++) {
struct demux_attachment *att = d->attachments + i;
if (use_embedded_fonts
&& att->name && att->type && att->data && att->data_size
&& (strcmp(att->type, "application/x-truetype-font") == 0
|| strcmp(att->type, "application/x-font") == 0))
if (use_embedded_fonts && attachment_is_font(att))
ass_add_font(ass_library, att->name, att->data, att->data_size);
}
}