[PATCH 2/7] winegstreamer: Support MPEG-1 audio in wg_transform.

[Anton Baskanov]

Signed-off-by: Anton Baskanov 
---
 dlls/winegstreamer/wg_format.c    | 17 ++++++++++++++++-
 dlls/winegstreamer/wg_transform.c |  6 +++++-
 2 files changed, 21 insertions(+), 2 deletions(-)

diff --git a/dlls/winegstreamer/wg_format.c b/dlls/winegstreamer/wg_format.c
index 608070b78e8..32d5a35e41a 100644
--- a/dlls/winegstreamer/wg_format.c
+++ b/dlls/winegstreamer/wg_format.c
@@ -331,6 +331,21 @@ static void wg_channel_mask_to_gst(GstAudioChannelPosition *positions, uint32_t
     }
 }

+static GstCaps *wg_format_to_caps_mpeg1_audio(const struct wg_format *format)
+{
+    GstCaps *caps;
+
+    if (!(caps = gst_caps_new_empty_simple("audio/mpeg")))
+        return NULL;
+
+    gst_caps_set_simple(caps, "mpegversion", G_TYPE_INT, 1, NULL);
+    gst_caps_set_simple(caps, "layer", G_TYPE_INT, format->u.mpeg1_audio.layer, NULL);
+    gst_caps_set_simple(caps, "rate", G_TYPE_INT, format->u.mpeg1_audio.rate, NULL);
+    gst_caps_set_simple(caps, "channels", G_TYPE_INT, format->u.mpeg1_audio.channels, NULL);
+
+    return caps;
+}
+
 static GstCaps *wg_format_to_caps_audio(const struct wg_format *format)
 {
     GstAudioChannelPosition positions[32];
@@ -495,7 +510,7 @@ GstCaps *wg_format_to_caps(const struct wg_format *format)
         case WG_MAJOR_TYPE_UNKNOWN:
             return gst_caps_new_any();
         case WG_MAJOR_TYPE_MPEG1_AUDIO:
-            return NULL;
+            return wg_format_to_caps_mpeg1_audio(format);
         case WG_MAJOR_TYPE_WMA:
             return wg_format_to_caps_wma(format);
         case WG_MAJOR_TYPE_H264:
diff --git a/dlls/winegstreamer/wg_transform.c b/dlls/winegstreamer/wg_transform.c
index dca85e7366e..3af9822b016 100644
--- a/dlls/winegstreamer/wg_transform.c
+++ b/dlls/winegstreamer/wg_transform.c
@@ -114,6 +114,10 @@ static GstElement *transform_find_element(GstElementFactoryListType type, GstCap
     for (tmp = transforms; tmp != NULL && element == NULL; tmp = tmp->next)
     {
         name = gst_plugin_feature_get_name(GST_PLUGIN_FEATURE(tmp->data));
+        /* Ignore mpg123audiodec for now, as it has issues with frame delay,
+         * e.g. it does not output any data until it receives 2 frames. */
+        if (!strcmp(name, "mpg123audiodec"))
+            continue;
         if (!(element = gst_element_factory_create(GST_ELEMENT_FACTORY(tmp->data), NULL)))
             GST_WARNING("Failed to create %s element.", name);
     }
@@ -224,6 +228,7 @@ NTSTATUS wg_transform_create(void *args)
              */
             transform->input_max_length = 16;
             /* fallthrough */
+        case WG_MAJOR_TYPE_MPEG1_AUDIO:
         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))
@@ -233,7 +238,6 @@ NTSTATUS wg_transform_create(void *args)
             }
             break;

-        case WG_MAJOR_TYPE_MPEG1_AUDIO:
         case WG_MAJOR_TYPE_AUDIO:
         case WG_MAJOR_TYPE_VIDEO:
         case WG_MAJOR_TYPE_UNKNOWN: