copy_on_write

Original commit message from CVS:
copy_on_write

2 files changed, 6 insertions, 0 deletions

diff --git a/gst/filter/gstiir.c b/gst/filter/gstiir.c
index 0bbcb0505..c363802c3 100644
--- a/gst/filter/gstiir.c
+++ b/gst/filter/gstiir.c
@@ -193,6 +193,9 @@ gst_iir_chain (GstPad * pad, GstBuffer * buf)
 
   src = (gfloat *) GST_BUFFER_DATA (buf);
 
+  /* get a writable buffer */
+  buf = gst_buffer_copy_on_write (buf);
+
   /* do an in-place edit */
   for (i = 0; i < GST_BUFFER_SIZE (buf) / sizeof (gfloat); ++i)
     *(src + i) = (gfloat) IIR_filter (filter->state, (double) *(src + i));
diff --git a/gst/filter/gstlpwsinc.c b/gst/filter/gstlpwsinc.c
index 9a0b65e1f..fc916a825 100644
--- a/gst/filter/gstlpwsinc.c
+++ b/gst/filter/gstlpwsinc.c
@@ -234,6 +234,9 @@ gst_lpwsinc_chain (GstPad * pad, GstBuffer * buf)
    * to make amends we keep the incoming buffer around and write our
    * output samples there */
 
+  /* get a writable buffer */
+  buf = gst_buffer_copy_on_write (buf);
+
   src = (gfloat *) GST_BUFFER_DATA (buf);
   residue_samples = filter->wing_size * 2 + 1;
   input_samples = GST_BUFFER_SIZE (buf) / sizeof (gfloat);