gst/law/: Fix negotiation to deal with ANY/EMPTY caps instead of leaking.

Original commit message from CVS:
* gst/law/alaw-decode.c: (alawdec_getcaps):
* gst/law/alaw-encode.c: (alawenc_getcaps), (gst_alawenc_chain):
* gst/law/mulaw-decode.c: (mulawdec_getcaps):
* gst/law/mulaw-encode.c: (mulawenc_getcaps):
Fix negotiation to deal with ANY/EMPTY caps instead of leaking.

4 files changed, 15 insertions, 10 deletions

diff --git a/gst/law/alaw-decode.c b/gst/law/alaw-decode.c
index 23ecc2b3..be7eed2f 100644
--- a/gst/law/alaw-decode.c
+++ b/gst/law/alaw-decode.c
@@ -90,14 +90,16 @@ alawdec_getcaps (GstPad * pad)
   }
   /* now intersect rate and channels from peer caps */
   othercaps = gst_pad_peer_get_caps (otherpad);
-  if (othercaps && (!gst_caps_is_empty (othercaps))
-      && (!gst_caps_is_any (othercaps))) {
+  if (othercaps) {
     GstStructure *structure;
     const GValue *orate, *ochans;
     const GValue *rate, *chans;
     GValue irate = { 0 }, ichans = {
     0};
 
+    if (gst_caps_is_empty (othercaps) || gst_caps_is_any (othercaps))
+      goto done;
+
     structure = gst_caps_get_structure (othercaps, 0);
     orate = gst_structure_get_value (structure, "rate");
     ochans = gst_structure_get_value (structure, "channels");
@@ -118,10 +120,9 @@ alawdec_getcaps (GstPad * pad)
     gst_structure_set_value (structure, "rate", &irate);
     gst_structure_set_value (structure, "channels", &ichans);
 
+  done:
     gst_caps_unref (othercaps);
   }
-
-done:
   return base_caps;
 }
 
diff --git a/gst/law/alaw-encode.c b/gst/law/alaw-encode.c
index 991085da..9cbcae98 100644
--- a/gst/law/alaw-encode.c
+++ b/gst/law/alaw-encode.c
@@ -139,6 +139,9 @@ alawenc_getcaps (GstPad * pad)
     GValue irate = { 0 }, ichans = {
     0};
 
+    if (gst_caps_is_empty (othercaps) || gst_caps_is_any (othercaps))
+      goto done;
+
     structure = gst_caps_get_structure (othercaps, 0);
     orate = gst_structure_get_value (structure, "rate");
     ochans = gst_structure_get_value (structure, "channels");
@@ -159,9 +162,9 @@ alawenc_getcaps (GstPad * pad)
     gst_structure_set_value (structure, "rate", &irate);
     gst_structure_set_value (structure, "channels", &ichans);
 
+  done:
     gst_caps_unref (othercaps);
   }
-done:
   return base_caps;
 }
 
diff --git a/gst/law/mulaw-decode.c b/gst/law/mulaw-decode.c
index d9babea4..786a43f9 100644
--- a/gst/law/mulaw-decode.c
+++ b/gst/law/mulaw-decode.c
@@ -72,10 +72,8 @@ mulawdec_getcaps (GstPad * pad)
     GValue irate = { 0 }, ichans = {
     0};
 
-    if (gst_caps_is_empty (othercaps) || gst_caps_is_any (othercaps)) {
-      gst_caps_unref (othercaps);
+    if (gst_caps_is_empty (othercaps) || gst_caps_is_any (othercaps))
       goto done;
-    }
 
     structure = gst_caps_get_structure (othercaps, 0);
     orate = gst_structure_get_value (structure, "rate");
@@ -97,9 +95,9 @@ mulawdec_getcaps (GstPad * pad)
     gst_structure_set_value (structure, "rate", &irate);
     gst_structure_set_value (structure, "channels", &ichans);
 
+  done:
     gst_caps_unref (othercaps);
   }
-done:
   return base_caps;
 }
 
diff --git a/gst/law/mulaw-encode.c b/gst/law/mulaw-encode.c
index ae92fc40..4b56eb1e 100644
--- a/gst/law/mulaw-encode.c
+++ b/gst/law/mulaw-encode.c
@@ -72,6 +72,9 @@ mulawenc_getcaps (GstPad * pad)
     GValue irate = { 0 }, ichans = {
     0};
 
+    if (gst_caps_is_empty (othercaps) || gst_caps_is_any (othercaps))
+      goto done;
+
     structure = gst_caps_get_structure (othercaps, 0);
     orate = gst_structure_get_value (structure, "rate");
     ochans = gst_structure_get_value (structure, "channels");
@@ -92,9 +95,9 @@ mulawenc_getcaps (GstPad * pad)
     gst_structure_set_value (structure, "rate", &irate);
     gst_structure_set_value (structure, "channels", &ichans);
 
+  done:
     gst_caps_unref (othercaps);
   }
-done:
   return base_caps;
 }