diff options
| -rw-r--r-- | recordmydesktop/src/rmd_yuv_utils.c | 42 |
1 files changed, 22 insertions, 20 deletions
diff --git a/recordmydesktop/src/rmd_yuv_utils.c b/recordmydesktop/src/rmd_yuv_utils.c index 33cf2f6..f433b27 100644 --- a/recordmydesktop/src/rmd_yuv_utils.c +++ b/recordmydesktop/src/rmd_yuv_utils.c @@ -205,12 +205,13 @@ static inline int blocknum(int xv, int yv, int widthv, int blocksize) *_vg = Vg, *_vb = Vb; \ register u_int##__depth__##_t *datapi = (u_int##__depth__##_t *)data, \ *datapi_next = NULL; \ + int w_odd = width_tm % 2, h_odd = height_tm % 2; \ \ if (sampling == __PXL_AVERAGE) \ datapi_next = datapi + width_tm; \ \ - for (int k = 0; k < height_tm; k += 2) { \ - for (int i = 0; i < width_tm; i += 2) { \ + for (int k = 0; k < height_tm - h_odd; k += 2) { \ + for (int i = 0; i < width_tm - w_odd; i += 2) { \ UPDATE_A_UV_PIXEL( yuv_U, \ yuv_V, \ t_val, \ @@ -227,12 +228,12 @@ static inline int blocknum(int xv, int yv, int widthv, int blocksize) yuv_V++; \ } \ \ - yuv_U += ((yuv)->y_stride - width_tm) >> 1; \ - yuv_V += ((yuv)->y_stride - width_tm) >> 1; \ + yuv_U += ((yuv)->y_stride - (width_tm - w_odd * 2)) >> 1; \ + yuv_V += ((yuv)->y_stride - (width_tm - w_odd * 2)) >> 1; \ \ - datapi += width_tm; \ + datapi += width_tm + w_odd; \ if (sampling == __PXL_AVERAGE) \ - datapi_next += width_tm; \ + datapi_next += width_tm + w_odd; \ } \ } @@ -290,13 +291,14 @@ static inline int blocknum(int xv, int yv, int widthv, int blocksize) *datapi_next = NULL, \ *datapi_back = (u_int##__depth__##_t *)data_back, \ *datapi_back_next = NULL; \ + int w_odd = width_tm % 2, h_odd = height_tm % 2; \ \ if (sampling == __PXL_AVERAGE) { \ datapi_next = datapi + width_tm; \ datapi_back_next = datapi_back + width_tm; \ \ - for (int k = 0; k < height_tm; k += 2) { \ - for (int i = 0; i < width_tm; i += 2) { \ + for (int k = 0; k < height_tm - h_odd; k += 2) { \ + for (int i = 0; i < width_tm - w_odd; i += 2) { \ if ( (*datapi != *datapi_back || \ (*(datapi + 1) != *(datapi_back + 1)) || \ (*datapi_next != *datapi_back_next) || \ @@ -324,17 +326,17 @@ static inline int blocknum(int xv, int yv, int widthv, int blocksize) yuv_V++; \ } \ \ - yuv_U += ((yuv)->y_stride - width_tm) >> 1; \ - yuv_V += ((yuv)->y_stride - width_tm) >> 1; \ + yuv_U += ((yuv)->y_stride - (width_tm - w_odd * 2)) >> 1; \ + yuv_V += ((yuv)->y_stride - (width_tm - w_odd * 2)) >> 1; \ \ - datapi += width_tm; \ - datapi_back += width_tm; \ - datapi_next += width_tm; \ - datapi_back_next += width_tm; \ + datapi += width_tm + w_odd; \ + datapi_back += width_tm + w_odd; \ + datapi_next += width_tm + w_odd; \ + datapi_back_next += width_tm + w_odd; \ } \ } else { \ - for (int k = 0; k < height_tm; k += 2) { \ - for (int i = 0; i < width_tm; i += 2) { \ + for (int k = 0; k < height_tm - h_odd; k += 2) { \ + for (int i = 0; i < width_tm - w_odd; i += 2) { \ if ((*datapi != *datapi_back)) { \ UPDATE_A_UV_PIXEL( yuv_U, \ yuv_V, \ @@ -356,11 +358,11 @@ static inline int blocknum(int xv, int yv, int widthv, int blocksize) yuv_V++; \ } \ \ - yuv_U += ((yuv)->y_stride - width_tm) >> 1; \ - yuv_V += ((yuv)->y_stride - width_tm) >> 1; \ + yuv_U += ((yuv)->y_stride - (width_tm - w_odd * 2)) >> 1; \ + yuv_V += ((yuv)->y_stride - (width_tm - w_odd * 2)) >> 1; \ \ - datapi += width_tm; \ - datapi_back += width_tm; \ + datapi += width_tm + w_odd; \ + datapi_back += width_tm + w_odd; \ } \ } \ } |