Fix const violating case.

git-svn-id: svn://localhost/ardour2/branches/3.0@13134 d708f5d6-7413-0410-9779-e7cbd77b26cf

diff --git a/libs/ardour/ardour/audio_buffer.h b/libs/ardour/ardour/audio_buffer.h
index 6b771814db67d20f2bc1f4c40934a70522634e9f..5c04a7f43a321276079f63237315b8b8d30501d7 100644 (file)
--- a/libs/ardour/ardour/audio_buffer.h
+++ b/libs/ardour/ardour/audio_buffer.h
@@ -52,7 +52,7 @@ public:
                assert(src.type() == DataType::AUDIO);
                assert(len <= _capacity);
                assert( src_offset <= ((framecnt_t) src.capacity()-len));
-               memcpy(_data + dst_offset, ((AudioBuffer&)src).data() + src_offset, sizeof(Sample) * len);
+               memcpy(_data + dst_offset, ((const AudioBuffer&)src).data() + src_offset, sizeof(Sample) * len);
                if (dst_offset == 0 && src_offset == 0 && len == _capacity) {
                        _silent = src.silent();
                } else {