From: Wim Taymans <wim.taymans@gmail.com>
Date: Thu, 24 Nov 2005 19:06:58 +0000 (+0000)
Subject: gst/base/gstbasesrc.c: Fix wrong percentage query.
X-Git-Tag: RELEASE-0_9_7~122
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=d0c276b717466fe7036dd7b4f2725a9963807d0d;p=platform%2Fupstream%2Fgstreamer.git

gst/base/gstbasesrc.c: Fix wrong percentage query.

Original commit message from CVS:
* gst/base/gstbasesrc.c: (gst_base_src_query):
Fix wrong percentage query.

* gst/gstutils.c: (gst_util_uint64_scale),
(gst_util_uint64_scale_int):
Add some more common cases that can be handled
efficiently to _scale.
---

diff --git a/ChangeLog b/ChangeLog
index a95d833..ba0dd4f 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,13 @@
+2005-11-24  Wim Taymans  <wim@fluendo.com>
+
+	* gst/base/gstbasesrc.c: (gst_base_src_query):
+	Fix wrong percentage query.
+
+	* gst/gstutils.c: (gst_util_uint64_scale),
+	(gst_util_uint64_scale_int):
+	Add some more common cases that can be handled 
+	efficiently to _scale.
+
 2005-11-24  Thomas Vander Stichele  <thomas at apestaart dot org>
 
 	* check/gst/gstminiobject.c: (thread_ref), (GST_START_TEST),
diff --git a/gst/base/gstbasesrc.c b/gst/base/gstbasesrc.c
index 146d9ca..02111c3 100644
--- a/gst/base/gstbasesrc.c
+++ b/gst/base/gstbasesrc.c
@@ -352,7 +352,7 @@ gst_base_src_query (GstPad * pad, GstQuery * query)
           guint64 ui64;
 
           b = gst_base_src_get_size (src, &ui64);
-          if (b && src->offset > ui64)
+          if (b && src->offset < ui64)
             i64 = gst_util_uint64_scale (GST_FORMAT_PERCENT_MAX, src->offset,
                 ui64);
           else
diff --git a/gst/gstutils.c b/gst/gstutils.c
index 7944006..aaf00be 100644
--- a/gst/gstutils.c
+++ b/gst/gstutils.c
@@ -369,19 +369,30 @@ typedef union
 guint64
 gst_util_uint64_scale (guint64 val, guint64 num, guint64 denom)
 {
-  guint64 result;
-
   g_return_val_if_fail (denom != 0, G_MAXUINT64);
 
-  if (num <= G_MAXINT32 && denom <= G_MAXINT32) {
-    result = gst_util_uint64_scale_int (val, (gint) num, (gint) denom);
-  } else {
-    /* implement me with fixed point, if you care */
-    result = gst_gdouble_to_guint64 (gst_guint64_to_gdouble (val) *
-        ((gst_guint64_to_gdouble (num)) / gst_guint64_to_gdouble (denom)));
-  }
+  /* if the denom is high, we need to do a 64 muldiv */
+  if (denom > G_MAXINT32)
+    goto do_int64;
 
-  return result;
+  /* if num and denom are low we can do a 32 bit muldiv */
+  if (num <= G_MAXINT32)
+    goto do_int32;
+
+  /* val and num are high, we need 64 muldiv */
+  if (val > G_MAXINT32)
+    goto do_int64;
+
+  /* val is low and num is high, we can swap them and do 32 muldiv */
+  return gst_util_uint64_scale_int (num, (gint) val, (gint) denom);
+
+do_int32:
+  return gst_util_uint64_scale_int (val, (gint) num, (gint) denom);
+
+do_int64:
+  /* implement me with fixed point, if you care */
+  return gst_gdouble_to_guint64 (gst_guint64_to_gdouble (val) *
+      ((gst_guint64_to_gdouble (num)) / gst_guint64_to_gdouble (denom)));
 }
 
 /**
diff --git a/libs/gst/base/gstbasesrc.c b/libs/gst/base/gstbasesrc.c
index 146d9ca..02111c3 100644
--- a/libs/gst/base/gstbasesrc.c
+++ b/libs/gst/base/gstbasesrc.c
@@ -352,7 +352,7 @@ gst_base_src_query (GstPad * pad, GstQuery * query)
           guint64 ui64;
 
           b = gst_base_src_get_size (src, &ui64);
-          if (b && src->offset > ui64)
+          if (b && src->offset < ui64)
             i64 = gst_util_uint64_scale (GST_FORMAT_PERCENT_MAX, src->offset,
                 ui64);
           else