First commit after CVS conversion. Should be just administrative changes.

lib/driver/audio.c

@@ -0,0 +1,188 @@
+/*
+  $Id: audio.c,v 1.9 2008/04/22 15:29:11 karl Exp $
+
+  Copyright (C) 2005, 2008 Rocky Bernstein <rocky@gnu.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, either version 3 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, see <http://www.gnu.org/licenses/>.
+*/
+/*! Audio (via line output) related routines. */
+
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <cdio/cdio.h>
+#include <cdio/util.h>
+#include <cdio/audio.h>
+#include "cdio_private.h"
+
+/* Return the number of seconds (discarding frame portion) of an MSF */
+uint32_t
+cdio_audio_get_msf_seconds(msf_t *p_msf) 
+{
+  return 
+    cdio_from_bcd8(p_msf->m)*CDIO_CD_SECS_PER_MIN + cdio_from_bcd8(p_msf->s);
+}
+
+/*!
+  Get volume of an audio CD.
+  
+  @param p_cdio the CD object to be acted upon.
+  
+*/
+driver_return_code_t 
+cdio_audio_get_volume (CdIo_t *p_cdio,  /*out*/ cdio_audio_volume_t *p_volume)
+{
+  cdio_audio_volume_t temp_audio_volume;
+  
+  if (!p_cdio) return DRIVER_OP_UNINIT;
+
+  if (!p_volume) p_volume = &temp_audio_volume;
+  if (p_cdio->op.audio_get_volume) {
+    return p_cdio->op.audio_get_volume (p_cdio->env, p_volume);
+  } else {
+    return DRIVER_OP_UNSUPPORTED;
+  }
+}
+/*!
+  Playing CD through analog output
+  
+  @param p_cdio the CD object to be acted upon.
+*/
+driver_return_code_t 
+cdio_audio_pause (CdIo_t *p_cdio) 
+{
+  if (!p_cdio) return DRIVER_OP_UNINIT;
+
+  if (p_cdio->op.audio_pause) {
+    return p_cdio->op.audio_pause (p_cdio->env);
+  } else {
+    return DRIVER_OP_UNSUPPORTED;
+  }
+}
+
+/*!
+  Playing CD through analog output at the given MSF.
+  
+  @param p_cdio the CD object to be acted upon.
+*/
+driver_return_code_t 
+cdio_audio_play_msf (CdIo_t *p_cdio, msf_t *p_start_msf, msf_t *p_end_msf)
+{
+  if (!p_cdio) return DRIVER_OP_UNINIT;
+
+  if (p_cdio->op.audio_play_msf) {
+    return p_cdio->op.audio_play_msf (p_cdio->env, p_start_msf, p_end_msf);
+  } else {
+    return DRIVER_OP_UNSUPPORTED;
+  }
+}
+
+/*!
+  Playing CD through analog output
+  
+  @param p_cdio the CD object to be acted upon.
+*/
+driver_return_code_t 
+cdio_audio_play_track_index (CdIo_t *p_cdio, cdio_track_index_t *p_track_index)
+{
+  if (!p_cdio) return DRIVER_OP_UNINIT;
+
+  if (p_cdio->op.audio_play_track_index) {
+    return p_cdio->op.audio_play_track_index (p_cdio->env, p_track_index);
+  } else {
+    return DRIVER_OP_UNSUPPORTED;
+  }
+}
+
+/*!
+  Get subchannel information.
+  
+  @param p_cdio the CD object to be acted upon.
+*/
+driver_return_code_t 
+cdio_audio_read_subchannel (CdIo_t *p_cdio, cdio_subchannel_t *p_subchannel)
+{
+  if (!p_cdio) return DRIVER_OP_UNINIT;
+
+  if (p_cdio->op.audio_read_subchannel) {
+    return p_cdio->op.audio_read_subchannel(p_cdio->env, p_subchannel);
+  } else {
+    return DRIVER_OP_UNSUPPORTED;
+  }
+}
+
+/*!
+  Resume playing an audio CD.
+  
+  @param p_cdio the CD object to be acted upon.
+  
+*/
+driver_return_code_t 
+cdio_audio_resume (CdIo_t *p_cdio)
+{
+  if (!p_cdio) return DRIVER_OP_UNINIT;
+
+  if (p_cdio->op.audio_resume) {
+    return p_cdio->op.audio_resume(p_cdio->env);
+  } else {
+    return DRIVER_OP_UNSUPPORTED;
+  }
+}
+
+/*!
+  Set volume of an audio CD.
+  
+  @param p_cdio the CD object to be acted upon.
+  
+*/
+driver_return_code_t 
+cdio_audio_set_volume (CdIo_t *p_cdio, cdio_audio_volume_t *p_volume)
+{
+  if (!p_cdio) return DRIVER_OP_UNINIT;
+
+  if (p_cdio->op.audio_set_volume) {
+    return p_cdio->op.audio_set_volume(p_cdio->env, p_volume);
+  } else {
+    return DRIVER_OP_UNSUPPORTED;
+  }
+}
+
+/*!
+  Resume playing an audio CD.
+  
+  @param p_cdio the CD object to be acted upon.
+  
+*/
+driver_return_code_t 
+cdio_audio_stop (CdIo_t *p_cdio)
+{
+  if (!p_cdio) return DRIVER_OP_UNINIT;
+
+  if (p_cdio->op.audio_stop) {
+    return p_cdio->op.audio_stop(p_cdio->env);
+  } else {
+    return DRIVER_OP_UNSUPPORTED;
+  }
+}
+
+
+/* 
+ * Local variables:
+ *  c-file-style: "gnu"
+ *  tab-width: 8
+ *  indent-tabs-mode: nil
+ * End:
+ */