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

[goodguy/history.git] / cinelerra-5.1 / libzmpeg3 / a52dec-0.7.3 / libao / audio_out_solaris.c

diff --git a/cinelerra-5.1/libzmpeg3/a52dec-0.7.3/libao/audio_out_solaris.c b/cinelerra-5.1/libzmpeg3/a52dec-0.7.3/libao/audio_out_solaris.c
new file mode 100644 (file)
index 0000000..a80063d
--- /dev/null
+++ b/cinelerra-5.1/libzmpeg3/a52dec-0.7.3/libao/audio_out_solaris.c
@@ -0,0 +1,166 @@
+/*
+ * audio_out_solaris.c
+ * Copyright (C) 2000-2002 Michel Lespinasse <walken@zoy.org>
+ * Copyright (C) 1999-2000 Aaron Holtzman <aholtzma@ess.engr.uvic.ca>
+ *
+ * This file is part of a52dec, a free ATSC A-52 stream decoder.
+ * See http://liba52.sourceforge.net/ for updates.
+ *
+ * a52dec 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.
+ *
+ * a52dec 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
+ */
+
+#include "config.h"
+
+#ifdef LIBAO_SOLARIS
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/ioctl.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <sys/audioio.h>
+#include <inttypes.h>
+
+#include "a52.h"
+#include "audio_out.h"
+#include "audio_out_internal.h"
+
+typedef struct solaris_instance_s {
+    ao_instance_t ao;
+    int fd;
+    int sample_rate;
+    int set_params;
+    int flags;
+} solaris_instance_t;
+
+int solaris_setup (ao_instance_t * _instance, int sample_rate, int * flags,
+                  sample_t * level, sample_t * bias)
+{
+    solaris_instance_t * instance = (solaris_instance_t *) _instance;
+
+    if ((instance->set_params == 0) && (instance->sample_rate != sample_rate))
+       return 1;
+    instance->sample_rate = sample_rate;
+
+    *flags = instance->flags;
+    *level = 1;
+    *bias = 384;
+
+    return 0;
+}
+
+int solaris_play (ao_instance_t * _instance, int flags, sample_t * _samples)
+{
+    solaris_instance_t * instance = (solaris_instance_t *) _instance;
+    int16_t int16_samples[256*2];
+
+#ifdef LIBA52_DOUBLE
+    float samples[256 * 2];
+    int i;
+
+    for (i = 0; i < 256 * 2; i++)
+       samples[i] = _samples[i];
+#else
+    float * samples = _samples;
+#endif
+
+    if (instance->set_params) {
+       audio_info_t info;
+
+        /* Setup our parameters */
+        AUDIO_INITINFO (&info);
+       info.play.sample_rate = instance->sample_rate;
+       info.play.precision = 16;
+       info.play.channels = 2;
+       info.play.encoding = AUDIO_ENCODING_LINEAR;
+       
+       /* Write our configuration */
+       /* An implicit GETINFO is also performed. */
+       if (ioctl (instance->fd, AUDIO_SETINFO, &info) < 0) {
+           perror ("Writing audio config block");
+           return 1;
+       }
+
+       if ((info.play.sample_rate != instance->sample_rate) ||
+           (info.play.precision != 16) || (info.play.channels != 2)) {
+           fprintf (stderr, "Wanted %dHz %d bits %d channels\n",
+                    instance->sample_rate, 16, 2);
+           fprintf (stderr, "Got    %dHz %d bits %d channels\n",
+                    info.play.sample_rate, info.play.precision,
+                    info.play.channels);
+           return 1;
+       }
+
+       instance->flags = flags;
+       instance->set_params = 0;
+    } else if ((flags == A52_DOLBY) && (instance->flags == A52_STEREO)) {
+       fprintf (stderr, "Switching from stereo to dolby surround\n");
+       instance->flags = A52_DOLBY;
+    } else if ((flags == A52_STEREO) && (instance->flags == A52_DOLBY)) {
+       fprintf (stderr, "Switching from dolby surround to stereo\n");
+       instance->flags = A52_STEREO;
+    } else if (flags != instance->flags)
+       return 1;
+
+    float2s16_2 (samples, int16_samples);
+    write (instance->fd, int16_samples, 256 * sizeof (int16_t) * 2);
+
+    return 0;
+}
+
+void solaris_close (ao_instance_t * _instance)
+{
+    solaris_instance_t * instance = (solaris_instance_t *) _instance;
+
+    close (instance->fd);
+}
+
+ao_instance_t * solaris_open (int flags)
+{
+    solaris_instance_t * instance;
+
+    instance = malloc (sizeof (solaris_instance_t));
+    if (instance == NULL)
+       return NULL;
+
+    instance->ao.setup = solaris_setup;
+    instance->ao.play = solaris_play;
+    instance->ao.close = solaris_close;
+
+    instance->sample_rate = 0;
+    instance->set_params = 1;
+    instance->flags = flags;
+
+    instance->fd = open ("/dev/audio", O_WRONLY);
+    if (instance->fd < 0) {
+       fprintf (stderr, "Can not open /dev/audio\n");
+       free (instance);
+       return NULL;
+    }
+
+    return (ao_instance_t *) instance;
+}
+
+ao_instance_t * ao_solaris_open (void)
+{
+    return solaris_open (A52_STEREO);
+}
+
+ao_instance_t * ao_solarisdolby_open (void)
+{
+    return solaris_open (A52_DOLBY);
+}
+
+#endif