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winegstreamer: Lookup and instantiate a WMA decoder element.

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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@codeweavers.com>
Signed-off-by: Zebediah Figura <zfigura@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Rémi Bernon 2022-02-22 12:23:25 -06:00 committed by Alexandre Julliard
parent 0052ffbfa0
commit 4dd187b222
1 changed files with 75 additions and 1 deletions
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76
dlls/winegstreamer/wg_transform.c
View file

@ -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: