added mixer

1 files changed, 39 insertions, 0 deletions

diff --git a/apps/mixer.h b/apps/mixer.h
new file mode 100644
index 0000000..fdd1197
--- /dev/null
+++ b/apps/mixer.h
@@ -0,0 +1,39 @@
+/*
+ *  dolmetschctl
+ *
+ *
+ *  Copyright (C) 2015 Christian Pointner <equinox@spreadspace.org>
+ *
+ *  This file is part of dolmetschctl.
+ *
+ *  dolmetschctl 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 3 of the License, or
+ *  any later version.
+ *
+ *  dolmetschctl 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 dolmetschctl. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef DOLMETSCHCTL_mixer_h_INCLUDED
+#define DOLMETSCHCTL_mixer_h_INCLUDED
+
+#include <alsa/asoundlib.h>
+#include <poll.h>
+
+typedef struct {
+  const char* name_;
+  snd_rawmidi_t* output_;
+} mixer_t;
+
+int mixer_init(mixer_t* m, const char* name, const char* device);
+int mixer_get_poll_fd_count(mixer_t* m);
+int mixer_get_poll_fds(mixer_t* m, struct pollfd *pfds, int npfds);
+int mixer_handle_revents(mixer_t* m, struct pollfd *pfds, int npfds);
+
+#endif