pipeline: stop setting the track caps

Stop setting the track 'caps' property. The previous code could
overwrite a users own setting of the caps for video and audio caps.
Moreover, the 'caps' property is listed as construct only, and users
will likely expect it to stay the same after a track has been added to a
timeline.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-editing-services/-/merge_requests/198>

ges/ges-internal.h

@@ -475,7 +475,6 @@ G_GNUC_INTERNAL GstElement* ges_source_create_topbin  (GESSource *source,
                                                        const gchar* bin_name,
                                                        GstElement* sub_element,
                                                        GPtrArray* elements);
-G_GNUC_INTERNAL void ges_track_set_caps                (GESTrack* track, const GstCaps* caps);
 G_GNUC_INTERNAL GstElement * ges_track_get_composition (GESTrack *track);
 
 

ges/ges-pipeline.c

@@ -442,37 +442,8 @@ static gboolean
 _track_is_compatible_with_profile (GESPipeline * self, GESTrack * track,
     GstEncodingProfile * prof)
 {
-  if (TRACK_COMPATIBLE_PROFILE (track->type, prof)) {
+  if (TRACK_COMPATIBLE_PROFILE (track->type, prof))
-    if (self->priv->mode == GES_PIPELINE_MODE_SMART_RENDER) {
-      GstCaps *ocaps, *rcaps;
-
-      GST_DEBUG ("Smart Render mode, setting input caps");
-      ocaps = gst_encoding_profile_get_input_caps (prof);
-      ocaps = gst_caps_make_writable (ocaps);
-      if (track->type == GES_TRACK_TYPE_AUDIO)
-        rcaps = gst_caps_new_empty_simple ("audio/x-raw");
-      else
-        rcaps = gst_caps_new_empty_simple ("video/x-raw");
-      gst_caps_append (ocaps, rcaps);
-      ges_track_set_caps (track, ocaps);
-      gst_caps_unref (ocaps);
-    } else {
-      GstCaps *caps = NULL;
-
-      /* Raw preview or rendering mode */
-      if (track->type == GES_TRACK_TYPE_VIDEO)
-        caps = gst_caps_new_empty_simple ("video/x-raw");
-      else if (track->type == GES_TRACK_TYPE_AUDIO)
-        caps = gst_caps_new_empty_simple ("audio/x-raw");
-
-      if (caps) {
-        ges_track_set_caps (track, caps);
-        gst_caps_unref (caps);
-      }
-    }
-
     return TRUE;
-  }
 
   return FALSE;
 }
@@ -1253,22 +1224,6 @@ ges_pipeline_set_mode (GESPipeline * pipeline, GESPipelineFlags mode)
   if ((pipeline->priv->mode &
           (GES_PIPELINE_MODE_RENDER | GES_PIPELINE_MODE_SMART_RENDER)) &&
       !(mode & (GES_PIPELINE_MODE_RENDER | GES_PIPELINE_MODE_SMART_RENDER))) {
-    GList *tmp;
-    GstCaps *caps;
-
-    for (tmp = pipeline->priv->timeline->tracks; tmp; tmp = tmp->next) {
-      GESTrackType type = GES_TRACK (tmp->data)->type;
-
-      if (type == GES_TRACK_TYPE_AUDIO)
-        caps = gst_caps_new_empty_simple ("audio/x-raw");
-      else if (type == GES_TRACK_TYPE_VIDEO)
-        caps = gst_caps_new_empty_simple ("video/x-raw");
-      else
-        continue;
-
-      ges_track_set_caps (GES_TRACK (tmp->data), caps);
-      gst_caps_unref (caps);
-    }
 
     /* Disable render bin */
     GST_DEBUG ("Disabling rendering bin");

ges/ges-track.c

@@ -129,6 +129,7 @@ G_DEFINE_TYPE_WITH_CODE (GESTrack, ges_track, GST_TYPE_BIN,
 
 static void composition_duration_cb (GstElement * composition, GParamSpec * arg
     G_GNUC_UNUSED, GESTrack * obj);
+static void ges_track_set_caps (GESTrack * track, const GstCaps * caps);
 
 /* Private methods/functions/callbacks */
 static void