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-rw-r--r--libavcodec/ivi_dsp.c68
1 files changed, 39 insertions, 29 deletions
diff --git a/libavcodec/ivi_dsp.c b/libavcodec/ivi_dsp.c
index 7d12784..4b97399 100644
--- a/libavcodec/ivi_dsp.c
+++ b/libavcodec/ivi_dsp.c
@@ -3,20 +3,20 @@
*
* Copyright (c) 2009-2011 Maxim Poliakovski
*
- * This file is part of Libav.
+ * This file is part of FFmpeg.
*
- * Libav is free software; you can redistribute it and/or
+ * 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 2.1 of the License, or (at your option) any later version.
*
- * Libav 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 Libav; 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
*/
@@ -38,7 +38,7 @@ void ff_ivi_recompose53(const IVIPlaneDesc *plane, uint8_t *dst,
int32_t b0_1, b0_2, b1_1, b1_2, b1_3, b2_1, b2_2, b2_3, b2_4, b2_5, b2_6;
int32_t b3_1, b3_2, b3_3, b3_4, b3_5, b3_6, b3_7, b3_8, b3_9;
int32_t pitch, back_pitch;
- const short *b0_ptr, *b1_ptr, *b2_ptr, *b3_ptr;
+ const short *b0_ptr, *b1_ptr, *b2_ptr, *b3_ptr;
const int num_bands = 4;
/* all bands should have the same pitch */
@@ -54,6 +54,9 @@ void ff_ivi_recompose53(const IVIPlaneDesc *plane, uint8_t *dst,
b3_ptr = plane->bands[3].buf;
for (y = 0; y < plane->height; y += 2) {
+
+ if (y+2 >= plane->height)
+ pitch= 0;
/* load storage variables with values */
if (num_bands > 0) {
b0_1 = b0_ptr[0];
@@ -83,6 +86,13 @@ void ff_ivi_recompose53(const IVIPlaneDesc *plane, uint8_t *dst,
}
for (x = 0, indx = 0; x < plane->width; x+=2, indx++) {
+ if (x+2 >= plane->width) {
+ b0_ptr --;
+ b1_ptr --;
+ b2_ptr --;
+ b3_ptr --;
+ }
+
/* some values calculated in the previous iterations can */
/* be reused in the next ones, so do appropriate copying */
b2_1 = b2_2; // b2[x-1,y ] = b2[x, y ]
@@ -170,10 +180,10 @@ void ff_ivi_recompose53(const IVIPlaneDesc *plane, uint8_t *dst,
back_pitch = -pitch;
- b0_ptr += pitch;
- b1_ptr += pitch;
- b2_ptr += pitch;
- b3_ptr += pitch;
+ b0_ptr += pitch + 1;
+ b1_ptr += pitch + 1;
+ b2_ptr += pitch + 1;
+ b3_ptr += pitch + 1;
}
}
@@ -181,7 +191,7 @@ void ff_ivi_recompose_haar(const IVIPlaneDesc *plane, uint8_t *dst,
const int dst_pitch)
{
int x, y, indx, b0, b1, b2, b3, p0, p1, p2, p3;
- const short *b0_ptr, *b1_ptr, *b2_ptr, *b3_ptr;
+ const short *b0_ptr, *b1_ptr, *b2_ptr, *b3_ptr;
int32_t pitch;
/* all bands should have the same pitch */
@@ -225,15 +235,15 @@ void ff_ivi_recompose_haar(const IVIPlaneDesc *plane, uint8_t *dst,
/** butterfly operation for the inverse Haar transform */
#define IVI_HAAR_BFLY(s1, s2, o1, o2, t) \
- t = (s1 - s2) >> 1;\
- o1 = (s1 + s2) >> 1;\
- o2 = t;\
+ t = ((s1) - (s2)) >> 1;\
+ o1 = ((s1) + (s2)) >> 1;\
+ o2 = (t);\
/** inverse 8-point Haar transform */
#define INV_HAAR8(s1, s5, s3, s7, s2, s4, s6, s8,\
d1, d2, d3, d4, d5, d6, d7, d8,\
t0, t1, t2, t3, t4, t5, t6, t7, t8) {\
- t1 = s1 << 1; t5 = s5 << 1;\
+ t1 = (s1) << 1; t5 = (s5) << 1;\
IVI_HAAR_BFLY(t1, t5, t1, t5, t0); IVI_HAAR_BFLY(t1, s3, t1, t3, t0);\
IVI_HAAR_BFLY(t5, s7, t5, t7, t0); IVI_HAAR_BFLY(t1, s2, t1, t2, t0);\
IVI_HAAR_BFLY(t3, s4, t3, t4, t0); IVI_HAAR_BFLY(t5, s6, t5, t6, t0);\
@@ -475,21 +485,21 @@ void ff_ivi_dc_haar_2d(const int32_t *in, int16_t *out, uint32_t pitch,
/** butterfly operation for the inverse slant transform */
#define IVI_SLANT_BFLY(s1, s2, o1, o2, t) \
- t = s1 - s2;\
- o1 = s1 + s2;\
- o2 = t;\
+ t = (s1) - (s2);\
+ o1 = (s1) + (s2);\
+ o2 = (t);\
/** This is a reflection a,b = 1/2, 5/4 for the inverse slant transform */
#define IVI_IREFLECT(s1, s2, o1, o2, t) \
- t = ((s1 + s2*2 + 2) >> 2) + s1;\
- o2 = ((s1*2 - s2 + 2) >> 2) - s2;\
- o1 = t;\
+ t = (((s1) + (s2)*2 + 2) >> 2) + (s1);\
+ o2 = (((s1)*2 - (s2) + 2) >> 2) - (s2);\
+ o1 = (t);\
/** This is a reflection a,b = 1/2, 7/8 for the inverse slant transform */
#define IVI_SLANT_PART4(s1, s2, o1, o2, t) \
- t = s2 + ((s1*4 - s2 + 4) >> 3);\
- o2 = s1 + ((-s1 - s2*4 + 4) >> 3);\
- o1 = t;\
+ t = (s2) + (((s1)*4 - (s2) + 4) >> 3);\
+ o2 = (s1) + ((-(s1) - (s2)*4 + 4) >> 3);\
+ o1 = (t);\
/** inverse slant8 transform */
#define IVI_INV_SLANT8(s1, s4, s8, s5, s2, s6, s3, s7,\
@@ -547,7 +557,7 @@ void ff_ivi_inverse_slant_8x8(const int32_t *in, int16_t *out, uint32_t pitch, c
}
#undef COMPENSATE
-#define COMPENSATE(x) ((x + 1)>>1)
+#define COMPENSATE(x) (((x) + 1)>>1)
src = tmp;
for (i = 0; i < 8; i++) {
if (!src[0] && !src[1] && !src[2] && !src[3] && !src[4] && !src[5] && !src[6] && !src[7]) {
@@ -587,7 +597,7 @@ void ff_ivi_inverse_slant_4x4(const int32_t *in, int16_t *out, uint32_t pitch, c
}
#undef COMPENSATE
-#define COMPENSATE(x) ((x + 1)>>1)
+#define COMPENSATE(x) (((x) + 1)>>1)
src = tmp;
for (i = 0; i < 4; i++) {
if (!src[0] && !src[1] && !src[2] && !src[3]) {
@@ -621,7 +631,7 @@ void ff_ivi_row_slant8(const int32_t *in, int16_t *out, uint32_t pitch, const ui
int i;
int t0, t1, t2, t3, t4, t5, t6, t7, t8;
-#define COMPENSATE(x) ((x + 1)>>1)
+#define COMPENSATE(x) (((x) + 1)>>1)
for (i = 0; i < 8; i++) {
if (!in[0] && !in[1] && !in[2] && !in[3] && !in[4] && !in[5] && !in[6] && !in[7]) {
memset(out, 0, 8*sizeof(out[0]));
@@ -663,7 +673,7 @@ void ff_ivi_col_slant8(const int32_t *in, int16_t *out, uint32_t pitch, const ui
row4 = pitch << 2;
row8 = pitch << 3;
-#define COMPENSATE(x) ((x + 1)>>1)
+#define COMPENSATE(x) (((x) + 1)>>1)
for (i = 0; i < 8; i++) {
if (flags[i]) {
IVI_INV_SLANT8(in[0], in[8], in[16], in[24], in[32], in[40], in[48], in[56],
@@ -700,7 +710,7 @@ void ff_ivi_row_slant4(const int32_t *in, int16_t *out, uint32_t pitch, const ui
int i;
int t0, t1, t2, t3, t4;
-#define COMPENSATE(x) ((x + 1)>>1)
+#define COMPENSATE(x) (((x) + 1)>>1)
for (i = 0; i < 4; i++) {
if (!in[0] && !in[1] && !in[2] && !in[3]) {
memset(out, 0, 4*sizeof(out[0]));
@@ -722,7 +732,7 @@ void ff_ivi_col_slant4(const int32_t *in, int16_t *out, uint32_t pitch, const ui
row2 = pitch << 1;
-#define COMPENSATE(x) ((x + 1)>>1)
+#define COMPENSATE(x) (((x) + 1)>>1)
for (i = 0; i < 4; i++) {
if (flags[i]) {
IVI_INV_SLANT4(in[0], in[4], in[8], in[12],
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