X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~mdw/git/disorder/blobdiff_plain/460b9539a7c15580e41a71bbc0f47ae776238915..985bb670b4e07d35cb1580780253ded2524a342e:/driver/disorder.c?ds=inline

diff --git a/driver/disorder.c b/driver/disorder.c
index 8385ae8..e6b6575 100644
--- a/driver/disorder.c
+++ b/driver/disorder.c
@@ -1,43 +1,50 @@
-
 /*
  * This file is part of DisOrder.
- * Copyright (C) 2005 Richard Kettlewell
+ * Copyright (C) 2005, 2007 Richard Kettlewell
  *
- * This program is free software; you can redistribute it and/or modify
+ * 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
+ * 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.
- *
+ * 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
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+/** @file driver/disorder.c
+ * @brief libao driver used by DisOrder
+ *
+ * The output from this driver is expected to be fed to @c
+ * disorder-normalize to convert to the confnigured target format.
  */
 
-#include <config.h>
+#include "common.h"
 
-#include <string.h>
-#include <stdlib.h>
 #include <errno.h>
 #include <unistd.h>
 #include <poll.h>
 #include <ao/ao.h>
 #include <ao/plugin.h>
 
+#include "speaker-protocol.h"
+
 /* extra declarations to help out lazy <ao/plugin.h> */
 int ao_plugin_test(void);
 ao_info *ao_plugin_driver_info(void);
 char *ao_plugin_file_extension(void);
 
-/* private data structure for this driver */
+/** @brief Private data structure for this driver */
 struct internal {
   int fd;				/* output file descriptor */
   int exit_on_error;			/* exit on write error */
+
+  /** @brief Record of sample format */
+  struct stream_header header;
+
 };
 
 /* like write() but never returns EINTR/EAGAIN or short */
@@ -126,10 +133,10 @@ int ao_plugin_open(ao_device *device, ao_sample_format *format) {
   
   /* we would like native-order samples */
   device->driver_byte_format = AO_FMT_NATIVE;
-  if(do_write(i->fd, format, sizeof *format) < 0) {
-    if(i->exit_on_error) exit(-1);
-    return 0;
-  }
+  i->header.rate = format->rate;
+  i->header.channels = format->channels;
+  i->header.bits = format->bits;
+  i->header.endian = ENDIAN_NATIVE;
   return 1;
 }
 
@@ -138,6 +145,14 @@ int ao_plugin_play(ao_device *device, const char *output_samples,
 		   uint_32 num_bytes) {
   struct internal *i = device->internal;
 
+  /* Fill in and write the header */
+  i->header.nbytes = num_bytes;
+  if(do_write(i->fd, &i->header, sizeof i->header) < 0) {
+    if(i->exit_on_error) _exit(-1);
+    return 0;
+  }
+
+  /* Write the sample data */
   if(do_write(i->fd, output_samples, num_bytes) < 0) {
     if(i->exit_on_error) _exit(-1);
     return 0;
@@ -167,4 +182,3 @@ c-basic-offset:2
 comment-column:40
 End:
 */
-/* arch-tag:ru/Jqo0hseWMoSt/ba4Xlw */