--- include/attributes.h	2006-06-16 20:12:26.000000000 +0200
+++ libmpeg2/attributes.h	2006-06-16 20:12:50.000000000 +0200
@@ -25,7 +29,7 @@
 #ifdef ATTRIBUTE_ALIGNED_MAX
 #define ATTR_ALIGN(align) __attribute__ ((__aligned__ ((ATTRIBUTE_ALIGNED_MAX < align) ? ATTRIBUTE_ALIGNED_MAX : align)))
 #else
-#define ATTR_ALIGN(align)
+#define ATTR_ALIGN(align) __attribute__ ((__aligned__ ((16 < align) ? 16 : align)))
 #endif
 
 #ifdef HAVE_BUILTIN_EXPECT
--- libmpeg2/cpu_accel.c	2006-06-16 20:12:26.000000000 +0200
+++ libmpeg2/cpu_accel.c	2006-06-16 20:12:50.000000000 +0200
@@ -22,6 +26,7 @@
  */
 
 #include "config.h"
+#include "cpudetect.h"
 
 #include <inttypes.h>
 
@@ -30,9 +35,17 @@
 #include "mpeg2_internal.h"
 
 #ifdef ACCEL_DETECT
-#ifdef ARCH_X86
+#if defined(ARCH_X86) || defined(ARCH_X86_64)
+
+/* MPlayer imports libmpeg2 as decoder, which detects MMX / 3DNow! 
+ * instructions via assembly. However, it is regarded as duplicaed work
+ * in MPlayer, so that we enforce to use MPlayer's implementation.
+ */
+#define USE_MPLAYER_CPUDETECT
+
 static inline uint32_t arch_accel (void)
 {
+#if !defined(USE_MPLAYER_CPUDETECT)
     uint32_t eax, ebx, ecx, edx;
     int AMD;
     uint32_t caps;
@@ -105,10 +118,24 @@
 	caps |= MPEG2_ACCEL_X86_MMXEXT;
 
     return caps;
+#else /* USE_MPLAYER_CPUDETECT: Use MPlayer's cpu capability property */
+    caps = 0;
+    if (gCpuCaps.hasMMX)
+        caps |= MPEG2_ACCEL_X86_MMX;
+    if (gCpuCaps.hasSSE2)
+	caps |= MPEG2_ACCEL_X86_SSE2;
+    if (gCpuCaps.hasMMX2)
+	caps |= MPEG2_ACCEL_X86_MMXEXT;
+    if (gCpuCaps.has3DNow)
+	caps |= MPEG2_ACCEL_X86_3DNOW;
+
+    return caps;
+
+#endif /* USE_MPLAYER_CPUDETECT */
 }
-#endif /* ARCH_X86 */
+#endif /* ARCH_X86 || ARCH_X86_64 */
 
-#if defined(ARCH_PPC) || defined(ARCH_SPARC)
+#if defined(ARCH_PPC) || (defined(ARCH_SPARC) && defined(HAVE_VIS))
 #include <signal.h>
 #include <setjmp.h>
 
@@ -195,6 +222,7 @@
 #ifdef ARCH_ALPHA
 static inline uint32_t arch_accel (void)
 {
+#ifdef CAN_COMPILE_ALPHA_MVI
     uint64_t no_mvi;
 
     asm volatile ("amask %1, %0"
@@ -202,6 +230,9 @@
 		  : "rI" (256));	/* AMASK_MVI */
     return no_mvi ? MPEG2_ACCEL_ALPHA : (MPEG2_ACCEL_ALPHA |
 					 MPEG2_ACCEL_ALPHA_MVI);
+#else
+    return MPEG2_ACCEL_ALPHA;
+#endif
 }
 #endif /* ARCH_ALPHA */
 #endif /* ACCEL_DETECT */
@@ -212,7 +243,7 @@
 
     accel = 0;
 #ifdef ACCEL_DETECT
-#if defined (ARCH_X86) || defined (ARCH_PPC) || defined (ARCH_ALPHA) || defined (ARCH_SPARC)
+#if defined (ARCH_X86) || defined (ARCH_X86_64) || defined (ARCH_PPC) || defined (ARCH_ALPHA) || defined (ARCH_SPARC)
     accel = arch_accel ();
 #endif
 #endif
--- libmpeg2/cpu_state.c	2006-06-16 20:12:26.000000000 +0200
+++ libmpeg2/cpu_state.c	2006-06-16 20:12:50.000000000 +0200
@@ -29,14 +33,14 @@
 #include "mpeg2.h"
 #include "attributes.h"
 #include "mpeg2_internal.h"
-#ifdef ARCH_X86
+#if defined(ARCH_X86) || defined(ARCH_X86_64)
 #include "mmx.h"
 #endif
 
 void (* mpeg2_cpu_state_save) (cpu_state_t * state) = NULL;
 void (* mpeg2_cpu_state_restore) (cpu_state_t * state) = NULL;
 
-#ifdef ARCH_X86
+#if defined(ARCH_X86) || defined(ARCH_X86_64)
 static void state_restore_mmx (cpu_state_t * state)
 {
     emms ();
@@ -115,12 +119,12 @@
 
 void mpeg2_cpu_state_init (uint32_t accel)
 {
-#ifdef ARCH_X86
+#if defined(ARCH_X86) || defined(ARCH_X86_64)
     if (accel & MPEG2_ACCEL_X86_MMX) {
 	mpeg2_cpu_state_restore = state_restore_mmx;
     }
 #endif
-#ifdef ARCH_PPC
+#if defined(ARCH_PPC) && defined(HAVE_ALTIVEC)
     if (accel & MPEG2_ACCEL_PPC_ALTIVEC) {
 	mpeg2_cpu_state_save = state_save_altivec;
 	mpeg2_cpu_state_restore = state_restore_altivec;
--- libmpeg2/decode.c	2006-06-16 20:12:26.000000000 +0200
+++ libmpeg2/decode.c	2006-06-16 20:12:50.000000000 +0200
@@ -351,6 +355,15 @@
     fbuf->buf[1] = buf[1];
     fbuf->buf[2] = buf[2];
     fbuf->id = id;
+    // HACK! FIXME! At first I frame, copy pointers to prediction frame too!
+    if (mpeg2dec->custom_fbuf && !mpeg2dec->fbuf[1]->buf[0]){
+	mpeg2dec->fbuf[1]->buf[0]=buf[0];
+	mpeg2dec->fbuf[1]->buf[1]=buf[1];
+	mpeg2dec->fbuf[1]->buf[2]=buf[2];
+	mpeg2dec->fbuf[1]->id=NULL;
+    }
+//        printf("libmpeg2: FBUF 0:%p 1:%p 2:%p\n",
+//	    mpeg2dec->fbuf[0]->buf[0],mpeg2dec->fbuf[1]->buf[0],mpeg2dec->fbuf[2]->buf[0]);
 }
 
 void mpeg2_custom_fbuf (mpeg2dec_t * mpeg2dec, int custom_fbuf)
--- libmpeg2/header.c	2006-06-16 20:12:26.000000000 +0200
+++ libmpeg2/header.c	2006-06-16 20:12:50.000000000 +0200
@@ -100,6 +104,9 @@
     mpeg2dec->decoder.convert = NULL;
     mpeg2dec->decoder.convert_id = NULL;
     mpeg2dec->picture = mpeg2dec->pictures;
+    memset(&mpeg2dec->fbuf_alloc[0].fbuf, 0, sizeof(mpeg2_fbuf_t));
+    memset(&mpeg2dec->fbuf_alloc[1].fbuf, 0, sizeof(mpeg2_fbuf_t));
+    memset(&mpeg2dec->fbuf_alloc[2].fbuf, 0, sizeof(mpeg2_fbuf_t));
     mpeg2dec->fbuf[0] = &mpeg2dec->fbuf_alloc[0].fbuf;
     mpeg2dec->fbuf[1] = &mpeg2dec->fbuf_alloc[1].fbuf;
     mpeg2dec->fbuf[2] = &mpeg2dec->fbuf_alloc[2].fbuf;
@@ -551,6 +558,7 @@
 	if (!(mpeg2dec->sequence.flags & SEQ_FLAG_PROGRESSIVE_SEQUENCE)) {
 	    picture->nb_fields = (buffer[3] & 2) ? 3 : 2;
 	    flags |= (buffer[3] & 128) ? PIC_FLAG_TOP_FIELD_FIRST : 0;
+	    flags |= (buffer[3] &   2) ? PIC_FLAG_REPEAT_FIRST_FIELD : 0;
 	} else
 	    picture->nb_fields = (buffer[3]&2) ? ((buffer[3]&128) ? 6 : 4) : 2;
 	break;
@@ -799,6 +807,7 @@
 	mpeg2dec->scaled[index] = mpeg2dec->q_scale_type;
 	for (i = 0; i < 32; i++) {
 	    k = mpeg2dec->q_scale_type ? non_linear_scale[i] : (i << 1);
+	    decoder->quantizer_scales[i] = k;
 	    for (j = 0; j < 64; j++)
 		decoder->quantizer_prescale[index][i][j] =
 		    k * mpeg2dec->quantizer_matrix[index][j];
--- libmpeg2/idct.c	2006-06-16 20:12:26.000000000 +0200
+++ libmpeg2/idct.c	2006-06-16 20:12:50.000000000 +0200
@@ -66,7 +70,7 @@
 } while (0)
 #endif
 
-static void inline idct_row (int16_t * const block)
+static inline void idct_row (int16_t * const block)
 {
     int d0, d1, d2, d3;
     int a0, a1, a2, a3, b0, b1, b2, b3;
@@ -119,7 +123,7 @@
     block[7] = (a0 - b0) >> 12;
 }
 
-static void inline idct_col (int16_t * const block)
+static inline void idct_col (int16_t * const block)
 {
     int d0, d1, d2, d3;
     int a0, a1, a2, a3, b0, b1, b2, b3;
@@ -239,12 +239,15 @@
 
 void mpeg2_idct_init (uint32_t accel)
 {
-#ifdef ARCH_X86
+#ifdef HAVE_MMX2
     if (accel & MPEG2_ACCEL_X86_MMXEXT) {
 	mpeg2_idct_copy = mpeg2_idct_copy_mmxext;
 	mpeg2_idct_add = mpeg2_idct_add_mmxext;
 	mpeg2_idct_mmx_init ();
-    } else if (accel & MPEG2_ACCEL_X86_MMX) {
+    } else
+#endif
+#ifdef HAVE_MMX
+    if (accel & MPEG2_ACCEL_X86_MMX) {
 	mpeg2_idct_copy = mpeg2_idct_copy_mmx;
 	mpeg2_idct_add = mpeg2_idct_add_mmx;
 	mpeg2_idct_mmx_init ();
@@ -254,11 +261,14 @@
     } else
 #endif
 #ifdef ARCH_ALPHA
+#ifdef CAN_COMPILE_ALPHA_MVI
     if (accel & MPEG2_ACCEL_ALPHA_MVI) {
 	mpeg2_idct_copy = mpeg2_idct_copy_mvi;
 	mpeg2_idct_add = mpeg2_idct_add_mvi;
 	mpeg2_idct_alpha_init ();
-    } else if (accel & MPEG2_ACCEL_ALPHA) {
+    } else
+#endif
+    if (accel & MPEG2_ACCEL_ALPHA) {
 	int i;
 
 	mpeg2_idct_copy = mpeg2_idct_copy_alpha;
--- libmpeg2/idct_alpha.c	2006-06-16 20:12:26.000000000 +0200
+++ libmpeg2/idct_alpha.c	2006-06-16 20:12:50.000000000 +0200
@@ -59,7 +63,7 @@
 } while (0)
 #endif
 
-static void inline idct_row (int16_t * const block)
+static inline void idct_row (int16_t * const block)
 {
     uint64_t l, r;
     int_fast32_t d0, d1, d2, d3;
@@ -116,7 +120,7 @@
     block[7] = (a0 - b0) >> 12;
 }
 
-static void inline idct_col (int16_t * const block)
+static inline void idct_col (int16_t * const block)
 {
     int_fast32_t d0, d1, d2, d3;
     int_fast32_t a0, a1, a2, a3, b0, b1, b2, b3;
@@ -157,6 +161,7 @@
     block[8*7] = (a0 - b0) >> 17;
 }
 
+#ifdef CAN_COMPILE_ALPHA_MVI
 void mpeg2_idct_copy_mvi (int16_t * block, uint8_t * dest, const int stride)
 {
     uint64_t clampmask;
@@ -289,6 +294,7 @@
 	stq (p7, dest + 7 * stride);
     }
 }
+#endif
 
 void mpeg2_idct_copy_alpha (int16_t * block, uint8_t * dest, const int stride)
 {
--- libmpeg2/idct_mmx.c	2006-06-16 20:12:26.000000000 +0200
+++ libmpeg2/idct_mmx.c	2006-06-16 20:12:50.000000000 +0200
@@ -23,7 +27,7 @@
 
 #include "config.h"
 
-#ifdef ARCH_X86
+#if defined(ARCH_X86) || defined(ARCH_X86_64)
 
 #include <inttypes.h>
 
--- libmpeg2/motion_comp.c	2006-06-16 20:12:26.000000000 +0200
+++ libmpeg2/motion_comp.c	2006-06-16 20:12:50.000000000 +0200
@@ -37,16 +37,22 @@
 
 void mpeg2_mc_init (uint32_t accel)
 {
-#ifdef ARCH_X86
+#ifdef HAVE_MMX2
     if (accel & MPEG2_ACCEL_X86_MMXEXT)
 	mpeg2_mc = mpeg2_mc_mmxext;
-    else if (accel & MPEG2_ACCEL_X86_3DNOW)
+    else
+#endif
+#ifdef HAVE_3DNOW
+    if (accel & MPEG2_ACCEL_X86_3DNOW)
 	mpeg2_mc = mpeg2_mc_3dnow;
-    else if (accel & MPEG2_ACCEL_X86_MMX)
+    else
+#endif
+#ifdef HAVE_MMX
+    if (accel & MPEG2_ACCEL_X86_MMX)
 	mpeg2_mc = mpeg2_mc_mmx;
-    elseo
+    else
 #endif
-#ifdef ARCH_PPC
+#if defined(ARCH_PPC) && defined(HAVE_ALTIVEC)
     if (accel & MPEG2_ACCEL_PPC_ALTIVEC)
 	mpeg2_mc = mpeg2_mc_altivec;
     else
@@ -52,7 +62,7 @@
 	mpeg2_mc = mpeg2_mc_alpha;
     else
 #endif
-#ifdef ARCH_SPARC
+#if defined(ARCH_SPARC) && defined(HAVE_VIS)
     if (accel & MPEG2_ACCEL_SPARC_VIS)
 	mpeg2_mc = mpeg2_mc_vis;
     else
--- libmpeg2/motion_comp_mmx.c	2006-06-16 20:12:26.000000000 +0200
+++ libmpeg2/motion_comp_mmx.c	2006-06-16 20:12:50.000000000 +0200
@@ -23,7 +27,7 @@
 
 #include "config.h"
 
-#ifdef ARCH_X86
+#if defined(ARCH_X86) || defined(ARCH_X86_64)
 
 #include <inttypes.h>
 
--- include/mpeg2.h	2006-06-16 20:12:26.000000000 +0200
+++ libmpeg2/mpeg2.h	2006-06-16 20:12:50.000000000 +0200
@@ -82,6 +86,7 @@
 #define PIC_FLAG_COMPOSITE_DISPLAY 32
 #define PIC_FLAG_SKIP 64
 #define PIC_FLAG_TAGS 128
+#define PIC_FLAG_REPEAT_FIRST_FIELD 256
 #define PIC_MASK_COMPOSITE_DISPLAY 0xfffff000
 
 typedef struct mpeg2_picture_s {
@@ -154,6 +159,7 @@
 #define MPEG2_ACCEL_X86_MMX 1
 #define MPEG2_ACCEL_X86_3DNOW 2
 #define MPEG2_ACCEL_X86_MMXEXT 4
+#define MPEG2_ACCEL_X86_SSE2 8
 #define MPEG2_ACCEL_PPC_ALTIVEC 1
 #define MPEG2_ACCEL_ALPHA 1
 #define MPEG2_ACCEL_ALPHA_MVI 2
--- libmpeg2/mpeg2_internal.h	2006-06-16 20:12:26.000000000 +0200
+++ libmpeg2/mpeg2_internal.h	2006-06-16 20:12:50.000000000 +0200
@@ -144,6 +148,12 @@
     int second_field;
 
     int mpeg1;
+
+    /* for MPlayer: */
+    int quantizer_scales[32];
+    int quantizer_scale;
+    char* quant_store;
+    int quant_stride;
 };
 
 typedef struct {
@@ -214,6 +224,10 @@
     int8_t q_scale_type, scaled[4];
     uint8_t quantizer_matrix[4][64];
     uint8_t new_quantizer_matrix[4][64];
+
+    /* for MPlayer: */
+    unsigned char *pending_buffer;
+    int pending_length;
 };
 
 typedef struct {
--- libmpeg2/slice.c	2006-06-16 20:12:26.000000000 +0200
+++ libmpeg2/slice.c	2006-06-16 20:12:50.000000000 +0200
@@ -142,6 +146,7 @@
 
     quantizer_scale_code = UBITS (bit_buf, 5);
     DUMPBITS (bit_buf, bits, 5);
+    decoder->quantizer_scale = decoder->quantizer_scales[quantizer_scale_code];
 
     decoder->quantizer_matrix[0] =
 	decoder->quantizer_prescale[0][quantizer_scale_code];
@@ -1564,6 +1569,9 @@
 
 #define NEXT_MACROBLOCK							\
 do {									\
+    if(decoder->quant_store)                                            \
+        decoder->quant_store[decoder->quant_stride*(decoder->v_offset>>4) \
+                    +(decoder->offset>>4)] = decoder->quantizer_scale;  \
     decoder->offset += 16;						\
     if (decoder->offset == decoder->width) {				\
 	do { /* just so we can use the break statement */		\
