introducing the ffmpeg video decoder plugin for ms mpeg 4, opendivx and motion jpeg decoding

CVS patchset: 395
CVS date: 2001/08/07 12:41:46

1 files changed, 100 insertions, 0 deletions

diff --git a/src/libffmpeg/libavcodec/dsputil.h b/src/libffmpeg/libavcodec/dsputil.h
new file mode 100644
index 000000000..ffbc395ba
--- /dev/null
+++ b/src/libffmpeg/libavcodec/dsputil.h
@@ -0,0 +1,100 @@
+#ifndef DSPUTIL_H
+#define DSPUTIL_H
+
+#include "common.h"
+#include <inttypes.h>
+
+/* dct code */
+typedef short DCTELEM;
+
+void jpeg_fdct_ifast (DCTELEM *data);
+
+void j_rev_dct (DCTELEM *data);
+
+void fdct_mmx(DCTELEM *block);
+
+void (*av_fdct)(DCTELEM *block);
+
+/* pixel operations */
+#define MAX_NEG_CROP 384
+
+/* temporary */
+extern UINT32 squareTbl[512];
+
+void dsputil_init(void);
+
+/* pixel ops : interface with DCT */
+
+extern void (*ff_idct)(DCTELEM *block);
+extern void (*get_pixels)(DCTELEM *block, const UINT8 *pixels, int line_size);
+extern void (*put_pixels_clamped)(const DCTELEM *block, UINT8 *pixels, int line_size);
+extern void (*add_pixels_clamped)(const DCTELEM *block, UINT8 *pixels, int line_size);
+
+void get_pixels_c(DCTELEM *block, const UINT8 *pixels, int line_size);
+void put_pixels_clamped_c(const DCTELEM *block, UINT8 *pixels, int line_size);
+void add_pixels_clamped_c(const DCTELEM *block, UINT8 *pixels, int line_size);
+
+/* add and put pixel (decoding) */
+typedef void (*op_pixels_func)(UINT8 *block, const UINT8 *pixels, int line_size, int h);
+
+extern op_pixels_func put_pixels_tab[4];
+extern op_pixels_func avg_pixels_tab[4];
+extern op_pixels_func put_no_rnd_pixels_tab[4];
+extern op_pixels_func avg_no_rnd_pixels_tab[4];
+
+/* sub pixel (encoding) */
+extern void (*sub_pixels_tab[4])(DCTELEM *block, const UINT8 *pixels, int line_size, int h);
+
+#define sub_pixels_2(block, pixels, line_size, dxy) \
+   sub_pixels_tab[dxy](block, pixels, line_size, 8)
+
+/* motion estimation */
+
+typedef int (*op_pixels_abs_func)(UINT8 *blk1, UINT8 *blk2, int line_size, int h);
+
+extern op_pixels_abs_func pix_abs16x16;
+extern op_pixels_abs_func pix_abs16x16_x2;
+extern op_pixels_abs_func pix_abs16x16_y2;
+extern op_pixels_abs_func pix_abs16x16_xy2;
+
+int pix_abs16x16_c(UINT8 *blk1, UINT8 *blk2, int lx, int h);
+int pix_abs16x16_x2_c(UINT8 *blk1, UINT8 *blk2, int lx, int h);
+int pix_abs16x16_y2_c(UINT8 *blk1, UINT8 *blk2, int lx, int h);
+int pix_abs16x16_xy2_c(UINT8 *blk1, UINT8 *blk2, int lx, int h);
+
+#ifdef HAVE_MMX
+
+#define MM_MMX    0x0001 /* standard MMX */
+#define MM_3DNOW  0x0004 /* AMD 3DNOW */
+#define MM_MMXEXT 0x0002 /* SSE integer functions or AMD MMX ext */
+#define MM_SSE    0x0008 /* SSE functions */
+#define MM_SSE2   0x0010 /* PIV SSE2 functions */
+
+extern int mm_flags;
+
+int mm_support(void);
+
+static inline void emms(void)
+{
+    __asm __volatile ("emms;":::"memory");
+}
+
+#define emms_c() \
+{\
+    if (mm_flags & MM_MMX)\
+        emms();\
+}
+
+#define __align8 __attribute__ ((aligned (8)))
+
+void dsputil_init_mmx(void);
+
+#else
+
+#define emms_c()
+
+#define __align8
+
+#endif
+
+#endif