DTS via SPDIF

CVS patchset: 581
CVS date: 2001/09/06 15:23:14

2 files changed, 189 insertions, 0 deletions

diff --git a/src/libdts/Makefile.am b/src/libdts/Makefile.am
new file mode 100644
index 000000000..6e7a93629
--- /dev/null
+++ b/src/libdts/Makefile.am
@@ -0,0 +1,50 @@
+CFLAGS = @GLOBAL_CFLAGS@ 
+
+LIBTOOL = $(SHELL) $(top_builddir)/libtool-nofpic
+
+libdir = $(XINE_PLUGINDIR)
+
+lib_LTLIBRARIES = xineplug_decode_dts.la
+
+xineplug_decode_dts_la_SOURCES = xine_decoder.c
+xineplug_decode_dts_la_LDFLAGS = -avoid-version -module
+
+noinst_HEADERS =
+
+
+##
+## Install header files (default=$includedir/xine)
+##
+install-includeHEADERS: $(include_HEADERS)
+	@$(NORMAL_INSTALL)
+	$(mkinstalldirs) $(DESTDIR)$(includedir)/xine
+	@list='$(include_HEADERS)'; for p in $$list; do \
+	  if test -f "$$p"; then d= ; else d="$(srcdir)/"; fi; \
+	  echo " $(INSTALL_DATA) $$d$$p $(DESTDIR)$(includedir)/xine/$$p"; \
+	  $(INSTALL_DATA) $$d$$p $(DESTDIR)$(includedir)/xine/$$p; \
+	done
+
+
+##
+## Remove them
+##
+uninstall-includeHEADERS:
+	@$(NORMAL_UNINSTALL)
+	list='$(include_HEADERS)'; for p in $$list; do \
+	  rm -f $(DESTDIR)$(includedir)/xine/$$p; \
+	done
+
+
+debug:
+	@$(MAKE) CFLAGS="$(DEBUG_CFLAGS)"
+
+install-debug: debug
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+mostlyclean-generic:
+	-rm -f *~ \#* .*~ .\#*
+
+maintainer-clean-generic:
+	-@echo "This command is intended for maintainers to use;"
+	-@echo "it deletes files that may require special tools to rebuild."
+	-rm -f Makefile.in
diff --git a/src/libdts/xine_decoder.c b/src/libdts/xine_decoder.c
new file mode 100644
index 000000000..e0d3d0520
--- /dev/null
+++ b/src/libdts/xine_decoder.c
@@ -0,0 +1,139 @@
+/* 
+ * Copyright (C) 2000-2001 the xine project
+ * 
+ * This file is part of xine, a unix video player.
+ * 
+ * xine 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.
+ * 
+ * xine 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
+ *
+ * $Id: xine_decoder.c,v 1.1 2001/09/06 15:23:14 joachim_koenig Exp $
+ *
+ * 04-09-2001 DTS passtrough  (C) Joachim Koenig 
+ *
+ */
+
+
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <netinet/in.h> /* ntohs */
+#include "audio_out.h"
+#include "buffer.h"
+#include "xine_internal.h"
+
+
+typedef struct dts_decoder_s {
+  audio_decoder_t  audio_decoder;
+
+  uint32_t         pts;
+  uint32_t         rate;
+  uint32_t         bits_per_sample; 
+  uint32_t         number_of_channels; 
+  uint32_t	   audio_caps; 
+   
+  ao_instance_t  *audio_out;
+  int              output_open;
+} dts_decoder_t;
+
+int dts_can_handle (audio_decoder_t *this_gen, int buf_type) {
+  buf_type &= 0xFFFF0000;
+
+  return ( buf_type == BUF_AUDIO_DTS);
+}
+
+
+void dts_init (audio_decoder_t *this_gen, ao_instance_t *audio_out) {
+
+  dts_decoder_t *this = (dts_decoder_t *) this_gen;
+
+  this->audio_out     = audio_out;
+  this->output_open   = 0;
+  this->pts           = 0;
+  this->rate          = 48000;
+  this->bits_per_sample=16; 
+  this->number_of_channels=2; 
+  this->audio_caps    = audio_out->get_capabilities(audio_out); 
+}
+
+
+void dts_decode_data (audio_decoder_t *this_gen, buf_element_t *buf) {
+
+  dts_decoder_t *this = (dts_decoder_t *) this_gen;
+  int16_t *sample_buffer=(int16_t *)buf->content;
+
+  if ((this->audio_caps & AO_CAP_MODE_AC5) == 0) {
+    return;
+  }
+
+  this->pts = buf->PTS;
+
+
+  if (!this->output_open) {      
+    this->output_open = (this->audio_out->open (this->audio_out, this->bits_per_sample, 
+                                                this->rate,
+                                                AO_CAP_MODE_AC5));
+  }
+  if (!this->output_open) {
+    return;
+  }
+
+  this->audio_out->write (this->audio_out,
+                            sample_buffer,
+                            1536,
+                            this->pts);
+
+  
+}
+
+void dts_close (audio_decoder_t *this_gen) {
+
+  dts_decoder_t *this = (dts_decoder_t *) this_gen; 
+printf("libdts: close \n");
+  if (this->output_open) 
+    this->audio_out->close (this->audio_out);
+  this->output_open = 0;
+}
+
+static char *dts_get_id(void) {
+  return "dts";
+}
+
+audio_decoder_t *init_audio_decoder_plugin (int iface_version, config_values_t *cfg) {
+
+  dts_decoder_t *this ;
+
+  if (iface_version != 2) {
+    printf( "libdts: plugin doesn't support plugin API version %d.\n"
+	    "libdts: this means there's a version mismatch between xine and this "
+	    "libdts: decoder plugin.\nInstalling current plugins should help.\n",
+	    iface_version);
+    return NULL;
+  }
+
+  this = (dts_decoder_t *) malloc (sizeof (dts_decoder_t));
+
+  this->audio_decoder.interface_version   = 2;
+  this->audio_decoder.can_handle          = dts_can_handle;
+  this->audio_decoder.init                = dts_init;
+  this->audio_decoder.decode_data         = dts_decode_data;
+  this->audio_decoder.close               = dts_close;
+  this->audio_decoder.get_identifier      = dts_get_id;
+  this->audio_decoder.priority            = 1;
+    
+  return (audio_decoder_t *) this;
+}
+