1 files changed, 72 insertions, 0 deletions
diff --git a/src/VBox/Devices/Audio/DrvHostAudioAlsaStubs.h b/src/VBox/Devices/Audio/DrvHostAudioAlsaStubs.h
new file mode 100644
index 00000000..00cc3942
--- /dev/null
+++ b/src/VBox/Devices/Audio/DrvHostAudioAlsaStubs.h
@@ -0,0 +1,72 @@
+/* $Id: DrvHostAudioAlsaStubs.h $ */
+/** @file
+ * Stubs for libasound.
+ */
+
+/*
+ * Copyright (C) 2006-2022 Oracle and/or its affiliates.
+ *
+ * This file is part of VirtualBox base platform packages, as
+ * available from https://www.virtualbox.org.
+ *
+ * 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, in version 3 of the
+ * License.
+ *
+ * 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, see <https://www.gnu.org/licenses>.
+ *
+ * SPDX-License-Identifier: GPL-3.0-only
+ */
+
+#ifndef VBOX_INCLUDED_SRC_Audio_DrvHostAudioAlsaStubs_h
+#define VBOX_INCLUDED_SRC_Audio_DrvHostAudioAlsaStubs_h
+#ifndef RT_WITHOUT_PRAGMA_ONCE
+# pragma once
+#endif
+
+#include <iprt/cdefs.h>
+#include <alsa/version.h>
+
+#define VBOX_ALSA_MAKE_VER(a,b,c)   ( ((a) << 24) | ((b) << 16) | (c) )
+#define VBOX_ALSA_VER               VBOX_ALSA_MAKE_VER(SND_LIB_MAJOR, SND_LIB_MINOR, SND_LIB_SUBMINOR)
+
+RT_C_DECLS_BEGIN
+extern int audioLoadAlsaLib(void);
+
+#if VBOX_ALSA_VER < VBOX_ALSA_MAKE_VER(1,0,18)   /* added in 1.0.18 */
+extern int  snd_pcm_avail_delay(snd_pcm_t *, snd_pcm_sframes_t *, snd_pcm_sframes_t *);
+#endif
+
+#if VBOX_ALSA_VER < VBOX_ALSA_MAKE_VER(1,0,14)  /* added in 1.0.14a */
+extern int  snd_device_name_hint(int, const char *, void ***);
+extern int  snd_device_name_free_hint(void **);
+extern char *snd_device_name_get_hint(const void *, const char *);
+#endif
+
+#if VBOX_ALSA_VER < VBOX_ALSA_MAKE_VER(1,0,27)  /* added in 1.0.27 */
+enum snd_pcm_chmap_position { SND_CHMAP_UNKNOWN = 0, SND_CHMAP_NA, SND_CHMAP_MONO, SND_CHMAP_FL, SND_CHMAP_FR,
+    SND_CHMAP_RL,  SND_CHMAP_RR,   SND_CHMAP_FC,   SND_CHMAP_LFE,  SND_CHMAP_SL,  SND_CHMAP_SR,  SND_CHMAP_RC,
+    SND_CHMAP_FLC, SND_CHMAP_FRC,  SND_CHMAP_RLC,  SND_CHMAP_RRC,  SND_CHMAP_FLW, SND_CHMAP_FRW, SND_CHMAP_FLH,
+    SND_CHMAP_FCH, SND_CHMAP_FRH,  SND_CHMAP_TC,   SND_CHMAP_TFL,  SND_CHMAP_TFR, SND_CHMAP_TFC, SND_CHMAP_TRL,
+    SND_CHMAP_TRR, SND_CHMAP_TRC,  SND_CHMAP_TFLC, SND_CHMAP_TFRC, SND_CHMAP_TSL, SND_CHMAP_TSR, SND_CHMAP_LLFE,
+    SND_CHMAP_RLFE, SND_CHMAP_BC,  SND_CHMAP_BLC,  SND_CHMAP_BRC };
+typedef struct snd_pcm_chmap
+{
+    unsigned int channels;
+    RT_GCC_EXTENSION
+    unsigned int pos[RT_FLEXIBLE_ARRAY_IN_NESTED_UNION];
+} snd_pcm_chmap_t;
+extern int snd_pcm_set_chmap(snd_pcm_t *, snd_pcm_chmap_t const *);
+#endif
+
+RT_C_DECLS_END
+
+#endif /* !VBOX_INCLUDED_SRC_Audio_DrvHostAudioAlsaStubs_h */
+