gst-libs/gst/riff/riff-read.*: Add _peek version (req'ed in CDXA).

Original commit message from CVS:
* gst-libs/gst/riff/riff-read.c: (gst_riff_peek_element_data),
(gst_riff_read_element_data):
* gst-libs/gst/riff/riff-read.h:
Add _peek version (req'ed in CDXA).
* gst/cdxaparse/gstcdxaparse.c: (gst_cdxaparse_init),
(gst_cdxaparse_loop):
Fix parsing in playbin.
* gst/playback/gstdecodebin.c: (close_pad_link):
Ignore current_ pads, they cause major annoyance.

ChangeLog

@@ -1,3 +1,15 @@
+2005-01-19  Ronald S. Bultje  <rbultje@ronald.bitfreak.net>
+
+	* gst-libs/gst/riff/riff-read.c: (gst_riff_peek_element_data),
+	(gst_riff_read_element_data):
+	* gst-libs/gst/riff/riff-read.h:
+	  Add _peek version (req'ed in CDXA).
+	* gst/cdxaparse/gstcdxaparse.c: (gst_cdxaparse_init),
+	(gst_cdxaparse_loop):
+	  Fix parsing in playbin.
+	* gst/playback/gstdecodebin.c: (close_pad_link):
+	  Ignore current_ pads, they cause major annoyance.
+
 2005-01-19  Ronald S. Bultje  <rbultje@ronald.bitfreak.net>
 
 	* ext/alsa/gstalsasink.c: (gst_alsa_sink_loop):

gst-libs/gst/riff/riff-read.c

@@ -260,7 +260,7 @@ gst_riff_peek_head (GstRiffRead * riff,
  */
 
 GstBuffer *
-gst_riff_read_element_data (GstRiffRead * riff, guint length, guint * got_bytes)
+gst_riff_peek_element_data (GstRiffRead * riff, guint length, guint * got_bytes)
 {
   GstBuffer *buf = NULL;
   guint32 got;
@@ -272,14 +272,28 @@ gst_riff_read_element_data (GstRiffRead * riff, guint length, guint * got_bytes)
       return NULL;
   }
 
+  if (got_bytes)
+    *got_bytes = got;
+
+  return buf;
+}
+
+GstBuffer *
+gst_riff_read_element_data (GstRiffRead * riff, guint length, guint * got_bytes)
+{
+  GstBuffer *buf;
+
+  if (!(buf = gst_riff_peek_element_data (riff, length, got_bytes)))
+    return NULL;
+
   /* we need 16-bit alignment */
   if (length & 1)
     length++;
 
-  gst_bytestream_flush (riff->bs, length);
+  if (!gst_bytestream_flush (riff->bs, length)) {
-
+    gst_buffer_unref (buf);
-  if (got_bytes)
+    return NULL;
-    *got_bytes = got;
+  }
 
   return buf;
 }

gst-libs/gst/riff/riff-read.h

@@ -85,6 +85,9 @@ gboolean gst_riff_read_header    (GstRiffRead *read,
 GstBuffer *gst_riff_read_element_data (GstRiffRead *riff,
 				       guint        length,
 				       guint       *got_bytes);
+GstBuffer *gst_riff_peek_element_data (GstRiffRead *riff,
+				       guint        length,
+				       guint       *got_bytes);
 /*
  * Utility functions (including byteswapping).
  */

gst/cdxaparse/gstcdxaparse.c

@@ -129,6 +129,8 @@ gst_cdxaparse_init (GstCDXAParse * cdxaparse)
   cdxaparse->state = GST_CDXAPARSE_START;
   cdxaparse->seek_pending = FALSE;
   cdxaparse->seek_offset = 0;
+
+  GST_FLAG_SET (cdxaparse, GST_ELEMENT_EVENT_AWARE);
 }
 
 static gboolean
@@ -149,7 +151,7 @@ gst_cdxaparse_stream_init (GstCDXAParse * cdxa)
 }
 
 /* Read 'fmt ' header */
-static gboolean
+static gboolean G_GNUC_UNUSED
 gst_cdxaparse_fmt (GstCDXAParse * cdxa)
 {
   GstRiffRead *riff = GST_RIFF_READ (cdxa);
@@ -165,7 +167,7 @@ gst_cdxaparse_fmt (GstCDXAParse * cdxa)
   return TRUE;
 }
 
-static gboolean
+static gboolean G_GNUC_UNUSED
 gst_cdxaparse_other (GstCDXAParse * cdxa)
 {
   GstRiffRead *riff = GST_RIFF_READ (cdxa);
@@ -203,7 +205,7 @@ gst_cdxaparse_loop (GstElement * element)
   if (cdxa->state == GST_CDXAPARSE_DATA) {
     if (cdxa->dataleft > 0) {
       gint sync;
-      guint32 got_bytes, desired;
+      guint got_bytes, desired;
       GstBuffer *buf = NULL;
       GstBuffer *outbuf = NULL;
 
@@ -211,11 +213,10 @@ gst_cdxaparse_loop (GstElement * element)
       desired = cdxa->dataleft;
       if (desired > 1024)
         desired = 1024;
-      if (gst_bytestream_peek (riff->bs, &buf, desired) != desired) {
+      if (!(buf = gst_riff_peek_element_data (riff, desired, &got_bytes)))
-        GST_ELEMENT_ERROR (element, RESOURCE, READ, (NULL), (NULL));
         return;
-      }
       sync = gst_cdxastrip_sync (buf);
+      gst_buffer_unref (buf);
       if (sync == -1) {
         gst_bytestream_flush_fast (riff->bs, desired);
         cdxa->dataleft -= desired;
@@ -237,6 +238,7 @@ gst_cdxaparse_loop (GstElement * element)
 
       /* Skip CDXA headers, only keep data */
       outbuf = gst_cdxastrip_strip (buf);
+      GST_DEBUG ("Pushing one buffer");
       gst_pad_push (cdxa->srcpad, GST_DATA (outbuf));
 
       if (got_bytes < cdxa->dataleft)
@@ -253,15 +255,21 @@ gst_cdxaparse_loop (GstElement * element)
     case GST_CDXAPARSE_START:
       if (!gst_cdxaparse_stream_init (cdxa))
         return;
+      cdxa->state = GST_CDXAPARSE_DATA;
+      cdxa->dataleft = cdxa->datasize =
+          (guint64) gst_bytestream_length (riff->bs);
+      cdxa->datastart = gst_bytestream_tell (riff->bs);
+      break;
+#if 0
       cdxa->state = GST_CDXAPARSE_FMT;
       /* fall-through */
 
     case GST_CDXAPARSE_FMT:
-      if (!gst_cdxaparse_fmt (cdxa))
+      if (0 && !gst_cdxaparse_fmt (cdxa))
         return;
       cdxa->state = GST_CDXAPARSE_OTHER;
       /* fall-through */
-
+#endif
     case GST_CDXAPARSE_OTHER:
       if (!gst_cdxaparse_other (cdxa))
         return;