Move some code from wavparse

Original commit message from CVS:
Move some code from wavparse

2 files changed, 28 insertions, 0 deletions

diff --git a/gst-libs/gst/riff/riff.h b/gst-libs/gst/riff/riff.h
index 4792c5ed2..95af7508d 100644
--- a/gst-libs/gst/riff/riff.h
+++ b/gst-libs/gst/riff/riff.h
@@ -426,6 +426,8 @@ struct _GstRiffChunk {
 GstRiff*		gst_riff_parser_new			(GstRiffCallback function, gpointer data);
 GstRiffReturn 		gst_riff_parser_next_buffer		(GstRiff *riff, GstBuffer *buf, gulong off);
 void 			gst_riff_parser_resync 			(GstRiff *riff, gulong offset);  
+GstRiffChunk*		gst_riff_parser_get_chunk		(GstRiff *riff, guint32 fourcc);
+guint32			gst_riff_parser_get_nextlikely		(GstRiff *riff);
 
 /* from gstriffencode.c */
 GstRiff*		gst_riff_encoder_new			(guint32 type);
diff --git a/gst-libs/gst/riff/riffparse.c b/gst-libs/gst/riff/riffparse.c
index 8a993a6be..3b66db872 100644
--- a/gst-libs/gst/riff/riffparse.c
+++ b/gst-libs/gst/riff/riffparse.c
@@ -219,3 +219,29 @@ gst_riff_parser_resync (GstRiff *riff, gulong offset)
   riff->dataleft = NULL;
   riff->nextlikely = offset;
 }
+
+
+GstRiffChunk *gst_riff_get_chunk(GstRiff *riff,gchar *fourcc)
+{
+  GList *chunk;
+  
+  g_return_val_if_fail(riff != NULL, NULL);
+  g_return_val_if_fail(fourcc != NULL, NULL);
+
+  chunk = riff->chunks;
+  while (chunk) {
+    if (((GstRiffChunk *)(chunk->data))->id == gst_riff_fourcc_to_id(fourcc))
+      return (GstRiffChunk *)(chunk->data);
+    chunk = g_list_next(chunk);
+  }
+
+  return NULL;
+}   
+  
+guint32 gst_riff_get_nextlikely(GstRiff *riff)
+{
+  g_return_val_if_fail(riff != NULL, 0);
+
+  return riff->nextlikely;
+}
+