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subtitleoverlay: Also use "Decoder/Subtitle" elements

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Elements that "decoded" subtitle formats to raw text were historically
classified as "Parser" and not "Decoder. This is being gradually fixed.

This commit ensures that both classification are allowed

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/6153>
This commit is contained in:
Edward Hervey 2024-02-22 15:24:57 +01:00 committed by GStreamer Marge Bot
parent c1d33126aa
commit 3ce62be851
1 changed files with 12 additions and 8 deletions
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20
subprojects/gst-plugins-base/gst/playback/gstsubtitleoverlay.c
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@ -230,15 +230,19 @@ _is_renderer (GstElementFactory * factory)
return FALSE; return FALSE;
} }
/* Note : Historically subtitle "decoders" (which convert subtitle formats to
* raw text) were classified as "Parser/Subtitle". Most were fixed in February
* 2024 to use the proper classification of "Decoder/Subtitle" */
static gboolean static gboolean
_is_parser (GstElementFactory * factory) _is_parser_decoder (GstElementFactory * factory)
{ {
const gchar *klass; const gchar *klass;
klass = klass =
gst_element_factory_get_metadata (factory, GST_ELEMENT_METADATA_KLASS); gst_element_factory_get_metadata (factory, GST_ELEMENT_METADATA_KLASS);
if (klass != NULL && strstr (klass, "Parser/Subtitle") != NULL) if (klass != NULL && (strstr (klass, "Parser/Subtitle") != NULL ||
strstr (klass, "Decoder/Subtitle") != NULL))
return TRUE; return TRUE;
return FALSE; return FALSE;
} }
@ -296,7 +300,7 @@ _get_sub_caps (GstElementFactory * factory)
{ {
const GList *templates; const GList *templates;
GList *walk; GList *walk;
gboolean is_parser = _is_parser (factory); gboolean is_parser_decoder = _is_parser_decoder (factory);
templates = gst_element_factory_get_static_pad_templates (factory); templates = gst_element_factory_get_static_pad_templates (factory);
for (walk = (GList *) templates; walk; walk = g_list_next (walk)) { for (walk = (GList *) templates; walk; walk = g_list_next (walk)) {
@ -305,7 +309,7 @@ _get_sub_caps (GstElementFactory * factory)
if (templ->direction == GST_PAD_SINK && templ->presence == GST_PAD_ALWAYS) { if (templ->direction == GST_PAD_SINK && templ->presence == GST_PAD_ALWAYS) {
gboolean found = FALSE; gboolean found = FALSE;
if (is_parser) { if (is_parser_decoder) {
found = TRUE; found = TRUE;
} else { } else {
guint i; guint i;
@ -348,10 +352,10 @@ _factory_filter (GstPluginFeature * feature, GstCaps ** subcaps)
if (strcmp ("textoverlay", name) != 0 && rank < GST_RANK_MARGINAL) if (strcmp ("textoverlay", name) != 0 && rank < GST_RANK_MARGINAL)
return FALSE; return FALSE;
/* Check if it's a renderer or a parser */ /* Check if it's a renderer or a parser/decoder */
if (_is_renderer (factory)) { if (_is_renderer (factory)) {
is_renderer = TRUE; is_renderer = TRUE;
} else if (_is_parser (factory)) { } else if (_is_parser_decoder (factory)) {
is_renderer = FALSE; is_renderer = FALSE;
} else { } else {
return FALSE; return FALSE;
@ -382,8 +386,8 @@ _factory_filter (GstPluginFeature * feature, GstCaps ** subcaps)
*subcaps = gst_caps_merge (*subcaps, templ_caps); *subcaps = gst_caps_merge (*subcaps, templ_caps);
return TRUE; return TRUE;
} else if (!is_renderer && !have_video_sink && templ_caps) { } else if (!is_renderer && !have_video_sink && templ_caps) {
GST_DEBUG ("Found parser element %s (%s) with caps %" GST_PTR_FORMAT, GST_DEBUG ("Found parser/decoder element %s (%s) with caps %"
gst_element_factory_get_metadata (factory, GST_PTR_FORMAT, gst_element_factory_get_metadata (factory,
GST_ELEMENT_METADATA_LONGNAME), GST_ELEMENT_METADATA_LONGNAME),
gst_plugin_feature_get_name (feature), templ_caps); gst_plugin_feature_get_name (feature), templ_caps);
*subcaps = gst_caps_merge (*subcaps, templ_caps); *subcaps = gst_caps_merge (*subcaps, templ_caps);