[PATCH 4/5] winegstreamer: Lookup and instantiate a WMA decoder element.
Rémi Bernon
rbernon at codeweavers.com
Fri Feb 18 11:27:14 CST 2022
Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=51931
Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=52391
Signed-off-by: Rémi Bernon <rbernon at codeweavers.com>
---
dlls/winegstreamer/wg_transform.c | 66 ++++++++++++++++++++++++++++++-
1 file changed, 65 insertions(+), 1 deletion(-)
diff --git a/dlls/winegstreamer/wg_transform.c b/dlls/winegstreamer/wg_transform.c
index 120d9fcf1a5..22d97aa1241 100644
--- a/dlls/winegstreamer/wg_transform.c
+++ b/dlls/winegstreamer/wg_transform.c
@@ -78,6 +78,50 @@ NTSTATUS wg_transform_destroy(void *args)
return STATUS_SUCCESS;
}
+static GstElement *tranform_find_element(GstElementFactoryListType type, GstCaps *src_caps, GstCaps *sink_caps)
+{
+ GstElement *element = NULL;
+ GList *tmp, *transforms;
+ gchar *name;
+
+ transforms = gst_element_factory_list_get_elements(type, GST_RANK_MARGINAL);
+ if (!transforms)
+ goto done;
+
+ tmp = gst_element_factory_list_filter(transforms, src_caps, GST_PAD_SINK, FALSE);
+ gst_plugin_feature_list_free(transforms);
+ if (!(transforms = tmp))
+ goto done;
+
+ tmp = gst_element_factory_list_filter(transforms, sink_caps, GST_PAD_SRC, FALSE);
+ gst_plugin_feature_list_free(transforms);
+ if (!(transforms = tmp))
+ goto done;
+
+ transforms = g_list_sort(transforms, gst_plugin_feature_rank_compare_func);
+ for (tmp = transforms; tmp != NULL && element == NULL; tmp = tmp->next)
+ {
+ name = gst_plugin_feature_get_name(GST_PLUGIN_FEATURE(tmp->data));
+ element = gst_element_factory_create(GST_ELEMENT_FACTORY(tmp->data), NULL);
+ if (!element)
+ GST_WARNING("Failed to create %s element.", name);
+ }
+ gst_plugin_feature_list_free(transforms);
+
+done:
+ if (element)
+ GST_DEBUG("Created %s element %p.", name, element);
+ else
+ {
+ gchar *src_str = gst_caps_to_string(src_caps), *sink_str = gst_caps_to_string(sink_caps);
+ GST_WARNING("Failed to create transform matching caps %s / %s.", src_str, sink_str);
+ g_free(sink_str);
+ g_free(src_str);
+ }
+
+ return element;
+}
+
static bool transform_append_element(struct wg_transform *transform, GstElement *element,
GstElement **first, GstElement **last)
{
@@ -110,12 +154,13 @@ static bool transform_append_element(struct wg_transform *transform, GstElement
NTSTATUS wg_transform_create(void *args)
{
struct wg_transform_create_params *params = args;
+ GstCaps *raw_caps = NULL, *src_caps = NULL, *sink_caps = NULL;
struct wg_format output_format = *params->output_format;
struct wg_format input_format = *params->input_format;
GstElement *first = NULL, *last = NULL, *element;
- GstCaps *src_caps = NULL, *sink_caps = NULL;
GstPadTemplate *template = NULL;
struct wg_transform *transform;
+ const gchar *media_type;
NTSTATUS status;
int ret;
@@ -131,10 +176,27 @@ NTSTATUS wg_transform_create(void *args)
goto done;
if (!(sink_caps = wg_format_to_caps(&output_format)))
goto done;
+ media_type = gst_structure_get_name(gst_caps_get_structure(sink_caps, 0));
+ if (!(raw_caps = gst_caps_new_empty_simple(media_type)))
+ goto done;
if (!(transform->container = gst_bin_new("wg_transform")))
goto done;
+ switch (input_format.major_type)
+ {
+ case WG_MAJOR_TYPE_WMA:
+ if (!(element = tranform_find_element(GST_ELEMENT_FACTORY_TYPE_DECODER, src_caps, raw_caps)) ||
+ !transform_append_element(transform, element, &first, &last))
+ goto done;
+ break;
+ case WG_MAJOR_TYPE_AUDIO:
+ case WG_MAJOR_TYPE_VIDEO:
+ case WG_MAJOR_TYPE_UNKNOWN:
+ GST_FIXME("Format %u not implemented!", input_format.major_type);
+ goto done;
+ }
+
switch (output_format.major_type)
{
case WG_MAJOR_TYPE_AUDIO:
@@ -181,6 +243,8 @@ NTSTATUS wg_transform_create(void *args)
done:
if (template)
g_object_unref(template);
+ if (raw_caps)
+ gst_caps_unref(raw_caps);
if (sink_caps)
gst_caps_unref(sink_caps);
if (src_caps)
--
2.34.1
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