made changes everywhere to accomodate for the headers being in <gst/(lib)/...> we'll need to conclude this fast becau...

Original commit message from CVS:
made changes everywhere to accomodate for the headers being in
<gst/(lib)/...>
we'll need to conclude this fast because we will also need to change stuff in core real soon for the libs in order to fix everything
and I can't do it right now because I disabled all of the plugins here ;)

1 files changed, 221 insertions, 0 deletions

diff --git a/gst-libs/gst/riff/riffparse.c b/gst-libs/gst/riff/riffparse.c
new file mode 100644
index 00000000..eb4746fc
--- /dev/null
+++ b/gst-libs/gst/riff/riffparse.c
@@ -0,0 +1,221 @@
+/* Gnome-Streamer
+ * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#include <string.h>
+
+//#define DEBUG_ENABLED
+#include <riff.h>
+
+GstRiff*
+gst_riff_parser_new (GstRiffCallback function, gpointer data) 
+{
+  GstRiff *riff;
+
+  riff = (GstRiff *)g_malloc(sizeof(GstRiff));
+  g_return_val_if_fail(riff != NULL, NULL);
+
+  riff->form = 0;
+  riff->chunks = NULL;
+  riff->state = 0;
+  riff->curoffset = 0;
+  riff->nextlikely = 0;
+  riff->new_tag_found = function;
+  riff->callback_data = data;
+  riff->incomplete_chunk = NULL;
+  riff->dataleft = NULL;
+
+  return riff;
+}
+
+gint 
+gst_riff_parser_next_buffer (GstRiff *riff, GstBuffer *buf, gulong off) 
+{
+  gulong last, size;
+  GstRiffChunk *chunk;
+
+  g_return_val_if_fail(riff != NULL, GST_RIFF_EINVAL);
+  g_return_val_if_fail(buf != NULL, GST_RIFF_EINVAL);
+  g_return_val_if_fail(GST_BUFFER_DATA(buf) != NULL, GST_RIFF_EINVAL);
+
+  size = GST_BUFFER_SIZE(buf);
+  last = off + size;
+
+  GST_DEBUG (0,"gst_riff_parser: offset new buffer 0x%08lx size 0x%08x\n", off, GST_BUFFER_SIZE(buf));
+
+  if (riff->dataleft) {
+    gulong newsize;
+
+    GST_DEBUG (0,"gst_riff_parser: recovering left data\n");
+    newsize = riff->dataleft_size + size;
+    riff->dataleft = g_realloc(riff->dataleft, newsize);
+    memcpy(riff->dataleft+riff->dataleft_size, GST_BUFFER_DATA(buf), size);
+    gst_buffer_unref(buf);
+
+    buf = gst_buffer_new();
+    GST_BUFFER_DATA(buf) = riff->dataleft;
+    size = GST_BUFFER_SIZE(buf) = newsize;
+    off -= riff->dataleft_size;
+    //last -= riff->dataleft_size;
+    riff->dataleft = NULL;
+  }
+
+  if (off == 0) {
+    guint32 *words = (guint32 *)GST_BUFFER_DATA(buf);
+
+    // don't even try to parse the head if it's not there FIXME
+    if (last < 12) {
+      riff->state = GST_RIFF_ENOTRIFF;
+      return riff->state;
+    }
+
+    //g_print("testing is 0x%08lx '%s'\n",words[0],gst_riff_id_to_fourcc(words[0]));
+    /* verify this is a valid RIFF file, first of all */
+    if (GUINT32_FROM_LE (words[0]) != GST_RIFF_TAG_RIFF) {
+      riff->state = GST_RIFF_ENOTRIFF;
+      return riff->state;
+    }
+    riff->form = GUINT32_FROM_LE (words[2]);
+    //g_print("form is 0x%08lx '%s'\n",words[2],gst_riff_id_to_fourcc(words[2]));
+    riff->nextlikely = 12;	/* skip 'RIFF', length, and form */
+		// all OK here
+    riff->incomplete_chunk = NULL;
+  }
+
+  // if we have an incomplete chunk from the previous buffer
+  if (riff->incomplete_chunk) {
+    guint leftover;
+    GST_DEBUG (0,"gst_riff_parser: have incomplete chunk %08x filled\n", riff->incomplete_chunk_size);
+    leftover = riff->incomplete_chunk->size - riff->incomplete_chunk_size;
+    if (leftover <= size) {
+      GST_DEBUG (0,"gst_riff_parser: we can fill it from %08x with %08x bytes = %08x\n", 
+		riff->incomplete_chunk_size, leftover, 
+		riff->incomplete_chunk_size+leftover);
+      memcpy(riff->incomplete_chunk->data+riff->incomplete_chunk_size, GST_BUFFER_DATA(buf), leftover);
+
+      if (riff->new_tag_found) {
+        riff->new_tag_found(riff->incomplete_chunk, riff->callback_data);
+      }
+      g_free(riff->incomplete_chunk->data);
+      g_free(riff->incomplete_chunk);
+      riff->incomplete_chunk = NULL;
+    }
+    else {
+      GST_DEBUG (0,"gst_riff_parser: we cannot fill it %08x >= %08lx\n", leftover, size);
+      memcpy(riff->incomplete_chunk->data+riff->incomplete_chunk_size, GST_BUFFER_DATA(buf), size);
+      riff->incomplete_chunk_size += size;
+      return 0;
+    }
+  }
+
+  if (riff->nextlikely & 0x01) riff->nextlikely++;
+
+  GST_DEBUG (0,"gst_riff_parser: next 0x%08x  last 0x%08lx offset %08lx\n",riff->nextlikely, last, off);
+  /* loop while the next likely chunk header is in this buffer */
+  while ((riff->nextlikely+12) <= last) {
+    guint32 *words = (guint32 *)((guchar *)GST_BUFFER_DATA(buf) + riff->nextlikely - off );
+
+    // loop over all of the chunks to check which one is finished
+    while (riff->chunks) {
+      chunk = g_list_nth_data(riff->chunks, 0);
+
+      GST_DEBUG (0,"gst_riff_parser: next 0x%08x  offset 0x%08lx size 0x%08x\n",riff->nextlikely, 
+		      chunk->offset, chunk->size);
+      if (riff->nextlikely >= chunk->offset+chunk->size) {
+        GST_DEBUG (0,"gst_riff_parser: found END LIST\n");
+        // we have the end of the chunk on the stack, remove it
+        riff->chunks = g_list_remove(riff->chunks, chunk);
+      }
+      else break;
+    }
+
+    GST_DEBUG (0,"gst_riff_parser: next likely chunk is at offset 0x%08x\n",riff->nextlikely);
+
+    chunk = (GstRiffChunk *)g_malloc(sizeof(GstRiffChunk));
+    g_return_val_if_fail(chunk != NULL, GST_RIFF_ENOMEM);
+
+    chunk->offset = riff->nextlikely+8;	/* point to the actual data */
+    chunk->id = GUINT32_FROM_LE (words[0]);
+    chunk->size = GUINT32_FROM_LE (words[1]);
+    chunk->data = (gchar *)(words+2);
+    // we need word alignment
+    //if (chunk->size & 0x01) chunk->size++;
+    chunk->form = GUINT32_FROM_LE (words[2]); /* fill in the form,  might not be valid */
+
+
+    if (chunk->id == GST_RIFF_TAG_LIST) {
+      GST_DEBUG (0,"found LIST %s\n", gst_riff_id_to_fourcc(chunk->form));
+      riff->nextlikely += 12;	
+      // we push the list chunk on our 'stack'
+      riff->chunks = g_list_prepend(riff->chunks,chunk);
+      // send the buffer to the listener if we have received a function
+      if (riff->new_tag_found) {
+        riff->new_tag_found(chunk, riff->callback_data);
+      }
+    }
+    else {
+
+      GST_DEBUG (0,"gst_riff_parser: chunk id offset %08x is 0x%08x '%s' and is 0x%08x long\n",
+		riff->nextlikely, GUINT32_FROM_LE (words[0]),
+            	gst_riff_id_to_fourcc(GUINT32_FROM_LE (words[0])), GUINT32_FROM_LE (words[1]));
+
+      riff->nextlikely += 8 + chunk->size;	/* doesn't include hdr */
+      // if this buffer is incomplete
+      if (riff->nextlikely > last) {
+        guint left = size - (riff->nextlikely - chunk->size - off);
+
+        GST_DEBUG (0,"make incomplete buffer %08x\n", left);
+        chunk->data = g_malloc(chunk->size);
+        memcpy(chunk->data, (gchar *)(words+2), left);
+	     riff->incomplete_chunk = chunk;
+	     riff->incomplete_chunk_size = left;
+      }
+      else {
+        // send the buffer to the listener if we have received a function
+        if (riff->new_tag_found) {
+          riff->new_tag_found(chunk, riff->callback_data);
+        }
+        g_free(chunk);
+      }
+      if (riff->nextlikely & 0x01) riff->nextlikely++;
+
+      //riff->chunks = g_list_prepend(riff->chunks,chunk);
+    }
+  }
+  if ((riff->nextlikely+12) > last && !riff->incomplete_chunk) {
+    guint left = last - riff->nextlikely;
+    GST_DEBUG (0,"gst_riff_parser: not enough data next 0x%08x  last 0x%08lx %08x %08lx\n",riff->nextlikely, 
+		    last, left, off);
+
+    riff->dataleft = g_malloc(left);
+    riff->dataleft_size = left;
+    memcpy(riff->dataleft, GST_BUFFER_DATA(buf)+size-left, left);
+
+    return 0;
+  }
+
+  return 0;
+}
+
+void 
+gst_riff_parser_resync (GstRiff *riff, gulong offset) 
+{
+  riff->incomplete_chunk = NULL;
+  riff->dataleft = NULL;
+  riff->nextlikely = offset;
+}