initial commit of libmad

1 files changed, 91 insertions, 0 deletions

diff --git a/lib/libmad/decoder.h b/lib/libmad/decoder.h
new file mode 100644
index 00000000..f0ad758d
--- /dev/null
+++ b/lib/libmad/decoder.h
@@ -0,0 +1,91 @@
+/*
+ * libmad - MPEG audio decoder library
+ * Copyright (C) 2000-2004 Underbit Technologies, Inc.
+ *
+ * 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
+ *
+ * $Id: decoder.h,v 1.17 2004/01/23 09:41:32 rob Exp $
+ */
+
+# ifndef LIBMAD_DECODER_H
+# define LIBMAD_DECODER_H
+
+# include "stream.h"
+# include "frame.h"
+# include "synth.h"
+
+enum mad_decoder_mode {
+  MAD_DECODER_MODE_SYNC  = 0,
+  MAD_DECODER_MODE_ASYNC
+};
+
+enum mad_flow {
+  MAD_FLOW_CONTINUE = 0x0000,	/* continue normally */
+  MAD_FLOW_STOP     = 0x0010,	/* stop decoding normally */
+  MAD_FLOW_BREAK    = 0x0011,	/* stop decoding and signal an error */
+  MAD_FLOW_IGNORE   = 0x0020	/* ignore the current frame */
+};
+
+struct mad_decoder {
+  enum mad_decoder_mode mode;
+
+  int options;
+
+  struct {
+    long pid;
+    int in;
+    int out;
+  } async;
+
+  struct {
+    struct mad_stream stream;
+    struct mad_frame frame;
+    struct mad_synth synth;
+  } *sync;
+
+  void *cb_data;
+
+  enum mad_flow (*input_func)(void *, struct mad_stream *);
+  enum mad_flow (*header_func)(void *, struct mad_header const *);
+  enum mad_flow (*filter_func)(void *,
+			       struct mad_stream const *, struct mad_frame *);
+  enum mad_flow (*output_func)(void *,
+			       struct mad_header const *, struct mad_pcm *);
+  enum mad_flow (*error_func)(void *, struct mad_stream *, struct mad_frame *);
+  enum mad_flow (*message_func)(void *, void *, unsigned int *);
+};
+
+void mad_decoder_init(struct mad_decoder *, void *,
+		      enum mad_flow (*)(void *, struct mad_stream *),
+		      enum mad_flow (*)(void *, struct mad_header const *),
+		      enum mad_flow (*)(void *,
+					struct mad_stream const *,
+					struct mad_frame *),
+		      enum mad_flow (*)(void *,
+					struct mad_header const *,
+					struct mad_pcm *),
+		      enum mad_flow (*)(void *,
+					struct mad_stream *,
+					struct mad_frame *),
+		      enum mad_flow (*)(void *, void *, unsigned int *));
+int mad_decoder_finish(struct mad_decoder *);
+
+# define mad_decoder_options(decoder, opts)  \
+    ((void) ((decoder)->options = (opts)))
+
+int mad_decoder_run(struct mad_decoder *, enum mad_decoder_mode);
+int mad_decoder_message(struct mad_decoder *, void *, unsigned int *);
+
+# endif