ges-launcher: allow overriding container profile

When constructing an output profile using --profile-from, it is useful
to be able to override the top level container profile.

Expose a --container-profile option that applies as an override after
other methods for constructing an output profile have run. If no other
method was used, this will result in an empty top level container.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3977>

subprojects/gst-editing-services/tools/ges-launcher.c

@@ -637,6 +637,44 @@ _set_rendering_details (GESLauncher * self)
         return FALSE;
       }
 
+      if (opts->container_profile) {
+        GstEncodingProfile *new_prof;
+        GList *tmp;
+
+        if (!(new_prof = parse_encoding_profile (opts->container_profile))) {
+          gst_printerr ("Failed to parse container profile %s",
+              opts->container_profile);
+          gst_object_unref (prof);
+          return FALSE;
+        }
+
+        if (!GST_IS_ENCODING_CONTAINER_PROFILE (new_prof)) {
+          gst_printerr ("Top level profile should be container profile");
+          gst_object_unref (prof);
+          gst_object_unref (new_prof);
+          return FALSE;
+        }
+
+        if (gst_encoding_container_profile_get_profiles
+            (GST_ENCODING_CONTAINER_PROFILE (new_prof))) {
+          gst_printerr ("--container-profile cannot contain children profiles");
+          gst_object_unref (prof);
+          gst_object_unref (new_prof);
+          return FALSE;
+        }
+
+        for (tmp = (GList *)
+            gst_encoding_container_profile_get_profiles
+            (GST_ENCODING_CONTAINER_PROFILE (prof)); tmp; tmp = tmp->next) {
+          gst_encoding_container_profile_add_profile
+              (GST_ENCODING_CONTAINER_PROFILE (new_prof),
+              GST_ENCODING_PROFILE (gst_encoding_profile_ref (tmp->data)));
+        }
+
+        gst_encoding_profile_unref (prof);
+        prof = new_prof;
+      }
+
       gst_print ("\nEncoding details:\n");
       gst_print ("================\n");
 
@@ -1275,6 +1313,11 @@ ges_launcher_get_rendering_option_group (GESLauncherParsedOptions * opts)
           "of the rendered output. This will have no effect if no outputuri "
           "has been specified.",
         "<clip-name>"},
+    {"container-profile", 0, 0, G_OPTION_ARG_STRING, &opts->container_profile,
+          "Set a container profile for rendering. Applies after --format, "
+          "--encoding-profile and profile-from, potentially overriding the "
+          "existing top level container profile",
+        "<container-profile>"},
     {"forward-tags", 0, 0, G_OPTION_ARG_NONE, &opts->forward_tags,
           "Forward tags from input files to the output",
         NULL},
@@ -1327,6 +1370,7 @@ ges_launcher_parse_options (GESLauncher * self,
   gboolean owns_ctx = ctx == NULL;
   GESLauncherParsedOptions *opts = &self->priv->parsed_options;
   gchar *prev_videosink = opts->videosink, *prev_audiosink = opts->audiosink;
+
 /*  *INDENT-OFF* */
   GOptionEntry options[] = {
     {"disable-mixing", 0, 0, G_OPTION_ARG_NONE, &opts->disable_mixing,
@@ -1672,6 +1716,7 @@ _finalize (GObject * object)
   g_free (opts->format);
   g_free (opts->encoding_profile);
   g_free (opts->profile_from);
+  g_free (opts->container_profile);
   g_free (opts->videosink);
   g_free (opts->audiosink);
   g_free (opts->video_track_caps);

subprojects/gst-editing-services/tools/utils.h

@@ -39,6 +39,7 @@ typedef struct
   gchar *outputuri;
   gchar *encoding_profile;
   gchar *profile_from;
+  gchar *container_profile;
   gchar *videosink;
   gchar *audiosink;
   gboolean list_transitions;