Merge CV, ver=5.1; ops/methods from HV, and interface from CV where possible

[goodguy/history.git] / cinelerra-5.1 / cinelerra / audioalsa.h

diff --git a/cinelerra-5.1/cinelerra/audioalsa.h b/cinelerra-5.1/cinelerra/audioalsa.h
new file mode 100644 (file)
index 0000000..50bca65
--- /dev/null
+++ b/cinelerra-5.1/cinelerra/audioalsa.h
@@ -0,0 +1,69 @@
+
+/*
+ * CINELERRA
+ * Copyright (C) 2008 Adam Williams <broadcast at earthling dot net>
+ *
+ * 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
+ *
+ */
+
+#ifndef AUDIOALSA_H
+#define AUDIOALSA_H
+
+#include "adeviceprefs.inc"
+#include "arraylist.h"
+#include "audiodevice.h"
+
+#ifdef HAVE_ALSA
+#include <alsa/asoundlib.h>
+
+class AudioALSA : public AudioLowLevel
+{
+public:
+       AudioALSA(AudioDevice *device);
+       ~AudioALSA();
+
+       static void list_devices(ArrayList<char*> *devices, int pcm_title = 0, int mode = MODEPLAY);
+       int open_input();
+       int open_output();
+       int write_buffer(char *buffer, int size);
+       int read_buffer(char *buffer, int size);
+       int close_all();
+       int close_input();
+       int64_t device_position();
+       int64_t samples_output() { return samples_written; }
+       int output_wait();
+       int flush_device();
+       int interrupt_playback();
+       int stop_output();
+
+private:
+       int close_output();
+       void translate_name(char *output, char *input, int mode);
+       snd_pcm_format_t translate_format(int format);
+       int set_params(snd_pcm_t *dsp, int mode,
+               int channels, int bits, int samplerate, int samples);
+       snd_pcm_t* get_output();
+       snd_pcm_t* get_input();
+       snd_pcm_t *dsp_in, *dsp_out;
+       int64_t samples_written, buffer_position;
+       Timer *timer;
+       int delay, period_size;
+       Mutex *timer_lock;
+       int interrupted;
+};
+
+#endif
+#endif