Support 16K samplerate in Nellymoser.

[frescor/ffmpeg.git] / libavcodec / snow.h

diff --git a/libavcodec/snow.h b/libavcodec/snow.h
index 6505c5e9609fe0a5fcca2768deab20d396b7655d..5d5ae1e68a67cd78d86b739e136e10842d63cf8a 100644 (file)
--- a/libavcodec/snow.h
+++ b/libavcodec/snow.h
@@ -2,23 +2,25 @@
  * Copyright (C) 2004 Michael Niedermayer <michaelni@gmx.at>
  * Copyright (C) 2006 Robert Edele <yartrebo@earthlink.net>
  *
- * This library is free software; you can redistribute it and/or
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg 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 of the License, or (at your option) any later version.
+ * version 2.1 of the License, or (at your option) any later version.
  *
- * This library is distributed in the hope that it will be useful,
+ * 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
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
+ * License along with FFmpeg; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
-#ifndef _SNOW_H
-#define _SNOW_H
+#ifndef AVCODEC_SNOW_H
+#define AVCODEC_SNOW_H
 
 #include "dsputil.h"
 
@@ -29,24 +31,27 @@
 #define QSHIFT 5
 #define QROOT (1<<QSHIFT)
 #define LOSSLESS_QLOG -128
-#define FRAC_BITS 8
+#define FRAC_BITS 4
+#define MAX_REF_FRAMES 8
 
 #define LOG2_OBMC_MAX 8
 #define OBMC_MAX (1<<(LOG2_OBMC_MAX))
 
+#define DWT_97 0
+#define DWT_53 1
+
 /** Used to minimize the amount of memory used in order to optimize cache performance. **/
 struct slice_buffer_s {
-    DWTELEM * * line; ///< For use by idwt and predict_slices.
-    DWTELEM * * data_stack; ///< Used for internal purposes.
+    IDWTELEM * * line; ///< For use by idwt and predict_slices.
+    IDWTELEM * * data_stack; ///< Used for internal purposes.
     int data_stack_top;
     int line_count;
     int line_width;
     int data_count;
-    DWTELEM * base_buffer; ///< Buffer that this structure is caching.
+    IDWTELEM * base_buffer; ///< Buffer that this structure is caching.
 };
 
 #define liftS lift
-#define lift5 lift
 #if 1
 #define W_AM 3
 #define W_AO 0
@@ -116,14 +121,21 @@ struct slice_buffer_s {
 #define W_DS 9
 #endif
 
-extern void ff_snow_vertical_compose97i(DWTELEM *b0, DWTELEM *b1, DWTELEM *b2, DWTELEM *b3, DWTELEM *b4, DWTELEM *b5, int width);
-extern void ff_snow_horizontal_compose97i(DWTELEM *b, int width);
-extern void ff_snow_inner_add_yblock(uint8_t *obmc, const int obmc_stride, uint8_t * * block, int b_w, int b_h, int src_x, int src_y, int src_stride, slice_buffer * sb, int add, uint8_t * dst8);
+void ff_snow_vertical_compose97i(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, IDWTELEM *b3, IDWTELEM *b4, IDWTELEM *b5, int width);
+void ff_snow_horizontal_compose97i(IDWTELEM *b, int width);
+void ff_snow_inner_add_yblock(const uint8_t *obmc, const int obmc_stride, uint8_t * * block, int b_w, int b_h, int src_x, int src_y, int src_stride, slice_buffer * sb, int add, uint8_t * dst8);
 
+#if CONFIG_SNOW_ENCODER
+int w53_32_c(void *v, uint8_t * pix1, uint8_t * pix2, int line_size, int h);
+int w97_32_c(void *v, uint8_t * pix1, uint8_t * pix2, int line_size, int h);
+#else
+static int w53_32_c(void *v, uint8_t * pix1, uint8_t * pix2, int line_size, int h) {assert (0); return 0;}
+static int w97_32_c(void *v, uint8_t * pix1, uint8_t * pix2, int line_size, int h) {assert (0); return 0;}
+#endif
 
 /* C bits used by mmx/sse2/altivec */
 
-static always_inline void snow_interleave_line_header(int * i, int width, DWTELEM * low, DWTELEM * high){
+static av_always_inline void snow_interleave_line_header(int * i, int width, IDWTELEM * low, IDWTELEM * high){
     (*i) = (width) - 2;
 
     if (width & 1){
@@ -132,14 +144,14 @@ static always_inline void snow_interleave_line_header(int * i, int width, DWTELE
     }
 }
 
-static always_inline void snow_interleave_line_footer(int * i, DWTELEM * low, DWTELEM * high){
+static av_always_inline void snow_interleave_line_footer(int * i, IDWTELEM * low, IDWTELEM * high){
     for (; (*i)>=0; (*i)-=2){
         low[(*i)+1] = high[(*i)>>1];
         low[*i] = low[(*i)>>1];
     }
 }
 
-static always_inline void snow_horizontal_compose_lift_lead_out(int i, DWTELEM * dst, DWTELEM * src, DWTELEM * ref, int width, int w, int lift_high, int mul, int add, int shift){
+static av_always_inline void snow_horizontal_compose_lift_lead_out(int i, IDWTELEM * dst, IDWTELEM * src, IDWTELEM * ref, int width, int w, int lift_high, int mul, int add, int shift){
     for(; i<w; i++){
         dst[i] = src[i] - ((mul * (ref[i] + ref[i + 1]) + add) >> shift);
     }
@@ -149,14 +161,14 @@ static always_inline void snow_horizontal_compose_lift_lead_out(int i, DWTELEM *
     }
 }
 
-static always_inline void snow_horizontal_compose_liftS_lead_out(int i, DWTELEM * dst, DWTELEM * src, DWTELEM * ref, int width, int w){
+static av_always_inline void snow_horizontal_compose_liftS_lead_out(int i, IDWTELEM * dst, IDWTELEM * src, IDWTELEM * ref, int width, int w){
         for(; i<w; i++){
-            dst[i] = src[i] - (((-(ref[i] + ref[(i+1)])+W_BO) - 4 * src[i]) >> W_BS);
+            dst[i] = src[i] + ((ref[i] + ref[(i+1)]+W_BO + 4 * src[i]) >> W_BS);
         }
 
         if(width&1){
-            dst[w] = src[w] - (((-2 * ref[w] + W_BO) - 4 * src[w]) >> W_BS);
+            dst[w] = src[w] + ((2 * ref[w] + W_BO + 4 * src[w]) >> W_BS);
         }
 }
 
-#endif
+#endif /* AVCODEC_SNOW_H */