softdsp-endpoint: add multiple streams support

modules/meson.build

@@ -54,7 +54,8 @@ shared_library(
   'wireplumber-module-pw-audio-softdsp-endpoint',
   [
     'module-pw-audio-softdsp-endpoint.c',
-  ],
+    'module-pw-audio-softdsp-endpoint/dsp.c',
+ ],
   c_args : [common_c_args, '-DG_LOG_DOMAIN="m-pw-audio-softdsp-endpoint"'],
   install : true,
   install_dir : wireplumber_module_dir,

modules/module-pw-audio-softdsp-endpoint/dsp.h

+/* WirePlumber
+ *
+ * Copyright © 2019 Collabora Ltd.
+ *    @author Julian Bouzas <julian.bouzas@collabora.com>
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+#include <gio/gio.h>
+#include <wp/wp.h>
+
+#ifndef __WP_PW_AUDIO_DSP_H__
+#define __WP_PW_AUDIO_DSP_H__
+
+G_DECLARE_FINAL_TYPE (WpPwAudioDsp, wp_pw_audio_dsp,
+    WP_PW, AUDIO_DSP, GObject)
+
+void wp_pw_audio_dsp_new (WpEndpoint *endpoint, guint id, const char *name,
+    enum pw_direction direction, const struct pw_node_info *target,
+    const struct spa_audio_info_raw *format, GAsyncReadyCallback callback,
+    gpointer user_data);
+WpPwAudioDsp * wp_pw_audio_dsp_new_finish (GObject *initable, GAsyncResult *res,
+    GError **error);
+
+const struct pw_node_info *wp_pw_audio_dsp_get_info (WpPwAudioDsp * self);
+gboolean wp_pw_audio_dsp_prepare_link (WpPwAudioDsp * self,
+    GVariant ** properties, GError ** error);
+GVariant * wp_pw_audio_dsp_get_control_value (WpPwAudioDsp * self,
+    guint32 control_id);
+gboolean wp_pw_audio_dsp_set_control_value (WpPwAudioDsp * self,
+    guint32 control_id, GVariant * value);
+
+#endif