moved InputPlugin to decoder_api.h

InputPlugin is the API which is implemented by a decoder plugin.  This
belongs to the public API/ABI, so move it to decoder_api.h.  It will
later be renamed to something like "decoder_plugin".

1 files changed, 60 insertions, 1 deletions

diff --git a/src/decoder_api.h b/src/decoder_api.h
index ba61af57..6595b865 100644
--- a/src/decoder_api.h
+++ b/src/decoder_api.h
@@ -26,9 +26,67 @@
  *
  */
 
-#include "inputPlugin.h"
 #include "inputStream.h"
 #include "replayGain.h"
+#include "tag.h"
+#include "playerData.h"
+
+
+/* valid values for streamTypes in the InputPlugin struct: */
+#define INPUT_PLUGIN_STREAM_FILE	0x01
+#define INPUT_PLUGIN_STREAM_URL		0x02
+
+
+struct decoder;
+
+
+/* optional, set this to NULL if the InputPlugin doesn't have/need one
+ * this must return < 0 if there is an error and >= 0 otherwise */
+typedef int (*InputPlugin_initFunc) (void);
+
+/* optional, set this to NULL if the InputPlugin doesn't have/need one */
+typedef void (*InputPlugin_finishFunc) (void);
+
+/* boolean return value, returns 1 if the InputStream is decodable by
+ * the InputPlugin, 0 if not */
+typedef unsigned int (*InputPlugin_tryDecodeFunc) (InputStream *);
+
+/* this will be used to decode InputStreams, and is recommended for files
+ * and networked (HTTP) connections.
+ *
+ * returns -1 on error, 0 on success */
+typedef int (*InputPlugin_streamDecodeFunc) (struct decoder *,
+					     InputStream *);
+
+/* use this if and only if your InputPlugin can only be passed a filename or
+ * handle as input, and will not allow callbacks to be set (like Ogg-Vorbis
+ * and FLAC libraries allow)
+ *
+ * returns -1 on error, 0 on success */
+typedef int (*InputPlugin_fileDecodeFunc) (struct decoder *,
+					   char *path);
+
+/* file should be the full path!  Returns NULL if a tag cannot be found
+ * or read */
+typedef MpdTag *(*InputPlugin_tagDupFunc) (char *file);
+
+typedef struct _InputPlugin {
+	const char *name;
+	InputPlugin_initFunc initFunc;
+	InputPlugin_finishFunc finishFunc;
+	InputPlugin_tryDecodeFunc tryDecodeFunc;
+	InputPlugin_streamDecodeFunc streamDecodeFunc;
+	InputPlugin_fileDecodeFunc fileDecodeFunc;
+	InputPlugin_tagDupFunc tagDupFunc;
+
+	/* one or more of the INPUT_PLUGIN_STREAM_* values OR'd together */
+	unsigned char streamTypes;
+
+	/* last element in these arrays must always be a NULL: */
+	const char *const*suffixes;
+	const char *const*mimeTypes;
+} InputPlugin;
+
 
 /**
  * Opaque handle which the decoder plugin passes to the functions in
@@ -36,6 +94,7 @@
  */
 struct decoder;
 
+
 /**
  * Notify the player thread that it has finished initialization and
  * that it has read the song's meta data.