lavfi: port mp=pp7 to libavfilter

The only difference with mp=pp7 is that default mode is "medium", as stated
in the MPlayer docs, rather than "hard".

Signed-off-by: Stefano Sabatini <stefasab@gmail.com>

1 files changed, 46 insertions, 0 deletions

diff --git a/libavfilter/vf_pp7.h b/libavfilter/vf_pp7.h
new file mode 100644
index 0000000000..9aa8d732c1
--- /dev/null
+++ b/libavfilter/vf_pp7.h
@@ -0,0 +1,46 @@
+/*
+ * Copyright (c) 2005 Michael Niedermayer <michaelni@gmx.at>
+ * Copyright (c) 2014 Arwa Arif <arwaarif1994@gmail.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 General Public License as published by
+ * the Free Software Foundation; either version 2 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU 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 AVFILTER_PP7_H
+#define AVFILTER_PP7_H
+
+#include "avfilter.h"
+
+typedef struct PP7Context {
+    AVClass *class;
+    int thres2[99][16];
+
+    int qp;
+    int mode;
+    int qscale_type;
+    int hsub;
+    int vsub;
+    int temp_stride;
+    uint8_t *src;
+
+    int (*requantize)(struct PP7Context *p, int16_t *src, int qp);
+    void (*dctB)(int16_t *dst, int16_t *src);
+
+} PP7Context;
+
+void ff_pp7_init_x86(PP7Context *pp7);
+
+#endif /* AVFILTER_PP7_H */