First try of sound operators, untested.

source/blender/editors/sound/sound_intern.h

@@ -0,0 +1,39 @@
+/**
+ * $Id:$
+ *
+ * ***** BEGIN GPL LICENSE BLOCK *****
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version. 
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ *
+ * The Original Code is Copyright (C) 2008 Blender Foundation.
+ * All rights reserved.
+ *
+ * 
+ * Contributor(s): Blender Foundation
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ */
+
+#ifndef ED_SOUND_INTERN_H
+#define ED_SOUND_INTERN_H
+
+struct wmOperatorType;
+
+void SOUND_OT_open(wmOperatorType *ot);
+
+void sound_operatortype_init(void);
+
+#endif /* ED_SOUND_INTERN_H */
+

source/blender/editors/sound/sound_ops.c

@@ -0,0 +1,107 @@
+/**
+ * $Id:$
+ *
+ * ***** BEGIN GPL LICENSE BLOCK *****
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version. 
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ *
+ * The Original Code is Copyright (C) 2007 Blender Foundation.
+ * All rights reserved.
+ *
+ * 
+ * Contributor(s): Blender Foundation
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ */
+
+#include <stdio.h>
+
+#include "DNA_scene_types.h"
+#include "DNA_space_types.h"
+#include "DNA_sound_types.h"
+#include "DNA_windowmanager_types.h"
+
+#include "BKE_context.h"
+#include "BKE_main.h"
+#include "BKE_report.h"
+#include "BKE_sound.h"
+
+#include "RNA_access.h"
+#include "RNA_define.h"
+
+#include "WM_api.h"
+#include "WM_types.h"
+
+#include "AUD_C-API.h"
+
+#include "sound_intern.h"
+
+/******************** open sound operator ********************/
+
+static int open_exec(bContext *C, wmOperator *op)
+{
+	char filename[FILE_MAX];
+	bSound *sound;
+	AUD_SoundInfo info;
+
+	RNA_string_get(op->ptr, "filename", filename);
+
+	sound = sound_new_file(CTX_data_main(C), filename);
+
+	if (sound==NULL || sound->handle == NULL) {
+		BKE_report(op->reports, RPT_ERROR, "Unsupported audio format");
+		return OPERATOR_CANCELLED;
+	}
+
+	info = AUD_getInfo(sound->handle);
+
+	if (info.specs.format == AUD_FORMAT_INVALID) {
+		sound_delete(C, sound);
+		BKE_report(op->reports, RPT_ERROR, "Unsupported audio format");
+		return OPERATOR_CANCELLED;
+	}
+
+	return OPERATOR_FINISHED;
+}
+
+static int open_invoke(bContext *C, wmOperator *op, wmEvent *event)
+{
+	return WM_operator_filesel(C, op, event);
+}
+
+void SOUND_OT_open(wmOperatorType *ot)
+{
+	/* identifiers */
+	ot->name= "Open";
+	ot->idname= "SOUND_OT_open";
+	ot->description= "Load a sound file into blender";
+
+	/* api callbacks */
+	ot->exec= open_exec;
+	ot->invoke= open_invoke;
+
+	/* flags */
+	ot->flag= OPTYPE_REGISTER|OPTYPE_UNDO;
+
+	/* properties */
+	WM_operator_properties_filesel(ot, FOLDERFILE|SOUNDFILE|MOVIEFILE);
+}
+
+/* ******************************************************* */
+
+void sound_operatortype_init(void)
+{
+	WM_operatortype_append(SOUND_OT_open);
+}