libmpeg-0.4.1.diff

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 #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 {
@@ -312,3 +312,5 @@
 extern mpeg2_mc_t mpeg2_mc_altivec;
 extern mpeg2_mc_t mpeg2_mc_alpha;
 extern mpeg2_mc_t mpeg2_mc_vis;
+extern mpeg2_mc_t mpeg2_mc_arm;
+extern mpeg2_mc_t mpeg2_mc_iwmmxt;
--- 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];
@@ -1568,6 +1569,18 @@
 
 #define NEXT_MACROBLOCK							\
 do {									\
+    if(decoder->quant_store) {                                          \
+       if (decoder->picture_structure == TOP_FIELD)                     \
+        decoder->quant_store[2*decoder->quant_stride*(decoder->v_offset>>4) \
+                    +(decoder->offset>>4)] = decoder->quantizer_scale;  \
+       else if (decoder->picture_structure == BOTTOM_FIELD)             \
+        decoder->quant_store[2*decoder->quant_stride*(decoder->v_offset>>4) \
+	            + decoder->quant_stride                             \
+                    +(decoder->offset>>4)] = decoder->quantizer_scale;  \
+       else                                                             \
+        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 */		\
@@ -1604,6 +1604,12 @@
     }									\
 } while (0)
 
+static void motion_dummy (mpeg2_decoder_t * const decoder,
+                          motion_t * const motion,
+                          mpeg2_mc_fct * const * const table)
+{
+}
+
 void mpeg2_init_fbuf (mpeg2_decoder_t * decoder, uint8_t * current_fbuf[3],
 		      uint8_t * forward_fbuf[3], uint8_t * backward_fbuf[3])
 {
@@ -1661,7 +1667,9 @@
 
     if (decoder->mpeg1) {
 	decoder->motion_parser[0] = motion_zero_420;
+        decoder->motion_parser[MC_FIELD] = motion_dummy;
 	decoder->motion_parser[MC_FRAME] = motion_mp1;
+        decoder->motion_parser[MC_DMV] = motion_dummy;
 	decoder->motion_parser[4] = motion_reuse_420;
     } else if (decoder->picture_structure == FRAME_PICTURE) {
 	if (decoder->chroma_format == 0) {
--- libmpeg2/idct.c	2006-06-16 20:12:26.000000000 +0200
+++ libmpeg2/idct.c	2006-06-16 20:12:50.000000000 +0200
@@ -253,7 +253,7 @@
 	mpeg2_idct_mmx_init ();
     } else
 #endif
-#ifdef ARCH_PPC
+#if defined(ARCH_PPC) && defined(HAVE_ALTIVEC)
     if (accel & MPEG2_ACCEL_PPC_ALTIVEC) {
 	mpeg2_idct_copy = mpeg2_idct_copy_altivec;
 	mpeg2_idct_add = mpeg2_idct_add_altivec;
--- libmpeg2/idct_altivec.c	2004/08/02 11:26:43	12933
+++ libmpeg2/idct_altivec.c	2005/05/15 20:11:34	15484
@@ -41,7 +41,7 @@
 typedef vector signed int vector_s32_t;
 typedef vector unsigned int vector_u32_t;
 
-#if defined(HAVE_ALTIVEC_H) && (__GNUC__ * 100 + __GNUC_MINOR__ < 303)
+#if defined( HAVE_ALTIVEC_H ) && !defined( __APPLE_ALTIVEC__ ) && (__GNUC__ * 100 + __GNUC_MINOR__ < 303)
 /* work around gcc <3.3 vec_mergel bug */
 static inline vector_s16_t my_vec_mergel (vector_s16_t const A,
 					  vector_s16_t const B)
@@ -56,10 +56,10 @@
 #define vec_mergel my_vec_mergel
 #endif
 
-#ifdef HAVE_ALTIVEC_H	/* gnu */
-#define VEC_S16(a,b,c,d,e,f,g,h) {a, b, c, d, e, f, g, h}
-#else			/* apple */
+#if defined( __APPLE_CC__ ) && defined( __APPLE_ALTIVEC__ ) /* apple */
 #define VEC_S16(a,b,c,d,e,f,g,h) (vector_s16_t) (a, b, c, d, e, f, g, h)
+#else			/* gnu */
+#define VEC_S16(a,b,c,d,e,f,g,h) {a, b, c, d, e, f, g, h}
 #endif
 
 static const vector_s16_t constants ATTR_ALIGN(16) =
Index: libmpeg2/motion_comp_arm.c
===================================================================
--- libmpeg2/motion_comp_arm.c	(revision 0)
+++ libmpeg2/motion_comp_arm.c	(revision 0)
@@ -0,0 +1,187 @@
+/*
+ * motion_comp_arm.c
+ * Copyright (C) 2004 AGAWA Koji <i (AT) atty (DOT) jp>
+ *
+ * This file is part of mpeg2dec, a free MPEG-2 video stream decoder.
+ * See http://libmpeg2.sourceforge.net/ for updates.
+ *
+ * mpeg2dec 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.
+ *
+ * mpeg2dec 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 this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include "config.h"
+
+#ifdef ARCH_ARM
+
+#include <inttypes.h>
+
+#include "mpeg2.h"
+#include "attributes.h"
+#include "mpeg2_internal.h"
+
+#define avg2(a,b) ((a+b+1)>>1)
+#define avg4(a,b,c,d) ((a+b+c+d+2)>>2)
+
+#define predict_o(i) (ref[i])
+#define predict_x(i) (avg2 (ref[i], ref[i+1]))
+#define predict_y(i) (avg2 (ref[i], (ref+stride)[i]))
+#define predict_xy(i) (avg4 (ref[i], ref[i+1], \
+			     (ref+stride)[i], (ref+stride)[i+1]))
+
+#define put(predictor,i) dest[i] = predictor (i)
+#define avg(predictor,i) dest[i] = avg2 (predictor (i), dest[i])
+
+/* mc function template */
+
+#define MC_FUNC(op,xy)							\
+static void inline MC_##op##_##xy##_16_c (uint8_t * dest, const uint8_t * ref,	\
+				   const int stride, int height)	\
+{									\
+    do {								\
+	op (predict_##xy, 0);						\
+	op (predict_##xy, 1);						\
+	op (predict_##xy, 2);						\
+	op (predict_##xy, 3);						\
+	op (predict_##xy, 4);						\
+	op (predict_##xy, 5);						\
+	op (predict_##xy, 6);						\
+	op (predict_##xy, 7);						\
+	op (predict_##xy, 8);						\
+	op (predict_##xy, 9);						\
+	op (predict_##xy, 10);						\
+	op (predict_##xy, 11);						\
+	op (predict_##xy, 12);						\
+	op (predict_##xy, 13);						\
+	op (predict_##xy, 14);						\
+	op (predict_##xy, 15);						\
+	ref += stride;							\
+	dest += stride;							\
+    } while (--height);							\
+}									\
+static void MC_##op##_##xy##_8_c (uint8_t * dest, const uint8_t * ref,	\
+				  const int stride, int height)		\
+{									\
+    do {								\
+	op (predict_##xy, 0);						\
+	op (predict_##xy, 1);						\
+	op (predict_##xy, 2);						\
+	op (predict_##xy, 3);						\
+	op (predict_##xy, 4);						\
+	op (predict_##xy, 5);						\
+	op (predict_##xy, 6);						\
+	op (predict_##xy, 7);						\
+	ref += stride;							\
+	dest += stride;							\
+    } while (--height);							\
+}									\
+/* definitions of the actual mc functions */
+
+MC_FUNC (put,o)
+MC_FUNC (avg,o)
+MC_FUNC (put,x)
+MC_FUNC (avg,x)
+MC_FUNC (put,y)
+MC_FUNC (avg,y)
+MC_FUNC (put,xy)
+MC_FUNC (avg,xy)
+
+
+extern void MC_put_o_16_arm (uint8_t * dest, const uint8_t * ref,
+			     int stride, int height);
+
+extern void MC_put_x_16_arm (uint8_t * dest, const uint8_t * ref,
+			     int stride, int height);
+
+
+static void MC_put_y_16_arm (uint8_t * dest, const uint8_t * ref,
+			      int stride, int height)
+{
+    MC_put_y_16_c(dest, ref, stride, height);
+}
+
+static void MC_put_xy_16_arm (uint8_t * dest, const uint8_t * ref,
+			       int stride, int height)
+{
+    MC_put_xy_16_c(dest, ref, stride, height);
+}
+
+extern void MC_put_o_8_arm (uint8_t * dest, const uint8_t * ref,
+				int stride, int height);
+
+extern void MC_put_x_8_arm (uint8_t * dest, const uint8_t * ref,
+			    int stride, int height);
+
+static void MC_put_y_8_arm (uint8_t * dest, const uint8_t * ref,
+			     int stride, int height)
+{
+    MC_put_y_8_c(dest, ref, stride, height);
+}
+
+static void MC_put_xy_8_arm (uint8_t * dest, const uint8_t * ref,
+			      int stride, int height)
+{
+    MC_put_xy_8_c(dest, ref, stride, height);
+}
+
+static void MC_avg_o_16_arm (uint8_t * dest, const uint8_t * ref,
+			      int stride, int height)
+{
+    MC_avg_o_16_c(dest, ref, stride, height);
+}
+
+static void MC_avg_x_16_arm (uint8_t * dest, const uint8_t * ref,
+			      int stride, int height)
+{
+    MC_avg_x_16_c(dest, ref, stride, height);
+}
+
+static void MC_avg_y_16_arm (uint8_t * dest, const uint8_t * ref,
+			      int stride, int height)
+{
+    MC_avg_y_16_c(dest, ref, stride, height);
+}
+
+static void MC_avg_xy_16_arm (uint8_t * dest, const uint8_t * ref,
+			       int stride, int height)
+{
+    MC_avg_xy_16_c(dest, ref, stride, height);
+}
+
+static void MC_avg_o_8_arm (uint8_t * dest, const uint8_t * ref,
+			     int stride, int height)
+{
+    MC_avg_o_8_c(dest, ref, stride, height);
+}
+
+static void MC_avg_x_8_arm (uint8_t * dest, const uint8_t * ref,
+			     int stride, int height)
+{
+    MC_avg_x_8_c(dest, ref, stride, height);
+}
+
+static void MC_avg_y_8_arm (uint8_t * dest, const uint8_t * ref,
+			     int stride, int height)
+{
+    MC_avg_y_8_c(dest, ref, stride, height);
+}
+
+static void MC_avg_xy_8_arm (uint8_t * dest, const uint8_t * ref,
+			      int stride, int height)
+{
+    MC_avg_xy_8_c(dest, ref, stride, height);
+}
+
+MPEG2_MC_EXTERN (arm)
+
+#endif
Index: libmpeg2/motion_comp_arm_s.S
===================================================================
--- libmpeg2/motion_comp_arm_s.S	(revision 0)
+++ libmpeg2/motion_comp_arm_s.S	(revision 0)
@@ -0,0 +1,322 @@
+@ motion_comp_arm_s.S
+@ Copyright (C) 2004 AGAWA Koji <i (AT) atty (DOT) jp>
+@
+@ This file is part of mpeg2dec, a free MPEG-2 video stream decoder.
+@ See http://libmpeg2.sourceforge.net/ for updates.
+@
+@ mpeg2dec 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.
+@
+@ mpeg2dec 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 this program; if not, write to the Free Software
+@ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+	.text
+	
+@ ----------------------------------------------------------------
+	.align
+	.global MC_put_o_16_arm
+MC_put_o_16_arm:
+	@@ void func(uint8_t * dest, const uint8_t * ref, int stride, int height)
+	pld [r1]
+        stmfd sp!, {r4-r11, lr} @ R14 is also called LR
+	and r4, r1, #3
+	adr r5, MC_put_o_16_arm_align_jt
+	add r5, r5, r4, lsl #2
+	ldr pc, [r5]
+
+MC_put_o_16_arm_align0:
+	ldmia r1, {r4-r7}
+	add r1, r1, r2
+	pld [r1]
+	stmia r0, {r4-r7}
+	subs r3, r3, #1
+	add r0, r0, r2