VP56: move vp56_edge_filter to new VP56DSPContext

Using macro templates allows the vp[56]_adjust functions to be
inlined instead of called through function pointers.  The new
function pointers enable optimised implementations of the filters.

4% faster VP6 decoding on Cortex-A8.

Originally committed as revision 22992 to svn://svn.ffmpeg.org/ffmpeg/trunk

1 files changed, 33 insertions, 0 deletions

diff --git a/libavcodec/vp56dsp.h b/libavcodec/vp56dsp.h
new file mode 100644
index 0000000000..dbc84b1231
--- /dev/null
+++ b/libavcodec/vp56dsp.h
@@ -0,0 +1,33 @@
+/*
+ * Copyright (c) 2010 Mans Rullgard <mans@mansr.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_VP56DSP_H
+#define AVCODEC_VP56DSP_H
+
+#include <stdint.h>
+
+typedef struct VP56DSPContext {
+    void (*edge_filter_hor)(uint8_t *yuv, int stride, int t);
+    void (*edge_filter_ver)(uint8_t *yuv, int stride, int t);
+} VP56DSPContext;
+
+void ff_vp56dsp_init(VP56DSPContext *s, enum CodecID codec);
+
+#endif /* AVCODEC_VP56DSP_H */