dashdemux: avoid assertion when splitting buffer

Pass size=-1 as is if that is the case instead of subtracting
the offset. Otherwise we have an invalid size passed for that
buffer.

diff --git a/ext/dash/gstdashdemux.c b/ext/dash/gstdashdemux.c
index 618c7a883934835b31b15ad8907284db5d79022e..aafb39c02e1bbaac85b9314bd7ae2bc9aede9506 100644 (file)
--- a/ext/dash/gstdashdemux.c
+++ b/ext/dash/gstdashdemux.c
@@ -1316,7 +1316,7 @@ _gst_buffer_split (GstBuffer * buffer, gint offset, gsize size)
 {
   GstBuffer *newbuf = gst_buffer_copy_region (buffer,
       GST_BUFFER_COPY_FLAGS | GST_BUFFER_COPY_TIMESTAMPS | GST_BUFFER_COPY_META
-      | GST_BUFFER_COPY_MEMORY, offset, size - offset);
+      | GST_BUFFER_COPY_MEMORY, offset, size == -1 ? size : size - offset);
 
   gst_buffer_resize (buffer, 0, offset);