Rémi Bernon : winegstreamer: Lookup and instantiate a WMA decoder element.
Alexandre Julliard
julliard at winehq.org
Tue Feb 22 16:06:52 CST 2022
Module: wine
Branch: master
Commit: 4dd187b2227767524825e51eddd14f206ffd03dd
URL: https://source.winehq.org/git/wine.git/?a=commit;h=4dd187b2227767524825e51eddd14f206ffd03dd
Author: Rémi Bernon <rbernon at codeweavers.com>
Date: Tue Feb 22 12:23:25 2022 -0600
winegstreamer: Lookup and instantiate a WMA decoder element.
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>
Signed-off-by: Zebediah Figura <zfigura at codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard at winehq.org>
---
dlls/winegstreamer/wg_transform.c | 76 ++++++++++++++++++++++++++++++++++++++-
1 file changed, 75 insertions(+), 1 deletion(-)
diff --git a/dlls/winegstreamer/wg_transform.c b/dlls/winegstreamer/wg_transform.c
index d20d7640ded..d316071cf60 100644
--- a/dlls/winegstreamer/wg_transform.c
+++ b/dlls/winegstreamer/wg_transform.c
@@ -72,6 +72,50 @@ NTSTATUS wg_transform_destroy(void *args)
return STATUS_SUCCESS;
}
+static GstElement *transform_find_element(GstElementFactoryListType type, GstCaps *src_caps, GstCaps *sink_caps)
+{
+ GstElement *element = NULL;
+ GList *tmp, *transforms;
+ const gchar *name;
+
+ if (!(transforms = gst_element_factory_list_get_elements(type, GST_RANK_MARGINAL)))
+ 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));
+ if (!(element = gst_element_factory_create(GST_ELEMENT_FACTORY(tmp->data), NULL)))
+ 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)
{
@@ -99,13 +143,14 @@ 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;
NTSTATUS status = STATUS_UNSUCCESSFUL;
GstPadTemplate *template = NULL;
struct wg_transform *transform;
+ const gchar *media_type;
if (!init_gstreamer())
return STATUS_UNSUCCESSFUL;
@@ -136,6 +181,35 @@ NTSTATUS wg_transform_create(void *args)
gst_pad_set_element_private(transform->my_sink, transform);
gst_pad_set_chain_function(transform->my_sink, transform_sink_chain_cb);
+ /* Since we append conversion elements, we don't want to filter decoders
+ * based on the actual output caps now. Matching decoders with the
+ * raw output media type should be enough.
+ */
+ media_type = gst_structure_get_name(gst_caps_get_structure(sink_caps, 0));
+ if (!(raw_caps = gst_caps_new_empty_simple(media_type)))
+ goto out_free_sink_pad;
+
+ switch (input_format.major_type)
+ {
+ case WG_MAJOR_TYPE_WMA:
+ if (!(element = transform_find_element(GST_ELEMENT_FACTORY_TYPE_DECODER, src_caps, raw_caps))
+ || !transform_append_element(transform, element, &first, &last))
+ {
+ gst_caps_unref(raw_caps);
+ goto out_free_sink_pad;
+ }
+ 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);
+ gst_caps_unref(raw_caps);
+ goto out_free_sink_pad;
+ }
+
+ gst_caps_unref(raw_caps);
+
switch (output_format.major_type)
{
case WG_MAJOR_TYPE_AUDIO:
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