mss3: split DSP functions that are used in MTS2(MSS4) into separate file

1 files changed, 45 insertions, 0 deletions

diff --git a/libavcodec/mss34dsp.h b/libavcodec/mss34dsp.h
new file mode 100644
index 0000000000..b2cc5501ec
--- /dev/null
+++ b/libavcodec/mss34dsp.h
@@ -0,0 +1,45 @@
+/*
+ * Common stuff for some Microsoft Screen codecs
+ * Copyright (C) 2012 Konstantin Shishkov
+ *
+ * This file is part of Libav.
+ *
+ * Libav 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.
+ *
+ * Libav 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 Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_MSS34DSP_H
+#define AVCODEC_MSS34DSP_H
+
+#include <stdint.h>
+
+/**
+ * Generate quantisation matrix for given quality.
+ *
+ * @param qmat    destination matrix
+ * @param quality quality setting (1-100)
+ * @param luma    generate quantisation matrix for luma or chroma
+ */
+void ff_mss34_gen_quant_mat(uint16_t *qmat, int quality, int luma);
+
+/**
+ * Transform and output DCT block.
+ *
+ * @param dst     output plane
+ * @param stride  output plane stride
+ * @param block   block to transform and output
+ */
+void ff_mss34_dct_put(uint8_t *dst, int stride, int *block);
+
+#endif /* AVCODEC_MSS34DSP_H */