diff options
| author | Tim Redfern <tim@eclectronics.org> | 2014-02-17 13:36:38 +0000 |
|---|---|---|
| committer | Tim Redfern <tim@eclectronics.org> | 2014-02-17 13:36:38 +0000 |
| commit | 22e28216336da876e1fd17f380ce42eaf1446769 (patch) | |
| tree | 444dad3dc7e2656992d29f34f7bce31970c122a5 /ffmpeg/libavcodec/mss2dsp.c | |
| parent | ae5e8541f6e06e64c28719467cdf366ac57aff31 (diff) | |
chasing indexing error
Diffstat (limited to 'ffmpeg/libavcodec/mss2dsp.c')
| -rw-r--r-- | ffmpeg/libavcodec/mss2dsp.c | 156 |
1 files changed, 0 insertions, 156 deletions
diff --git a/ffmpeg/libavcodec/mss2dsp.c b/ffmpeg/libavcodec/mss2dsp.c deleted file mode 100644 index c5fc1f8..0000000 --- a/ffmpeg/libavcodec/mss2dsp.c +++ /dev/null @@ -1,156 +0,0 @@ -/* - * Microsoft Screen 2 (aka Windows Media Video V9 Screen) decoder - * - * 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 2.1 of the License, or (at your option) any later version. - * - * 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 FFmpeg; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ - -/** - * @file - * Microsoft Screen 2 (aka Windows Media Video V9 Screen) decoder DSP routines - */ - -#include "mss2dsp.h" -#include "libavutil/common.h" - -static av_always_inline void mss2_blit_wmv9_template(uint8_t *dst, - int dst_stride, - int gray, - int use_mask, - int maskcolor, - const uint8_t *mask, - int mask_stride, - const uint8_t *srcy, - int srcy_stride, - const uint8_t *srcu, - const uint8_t *srcv, - int srcuv_stride, - int w, int h) -{ - int i, j, k, r = -1; - while (++r < h) { - for (i = 0, j = 0, k = 0; i < w; j += (i & 1), i++, k += 3) { - if (!use_mask || mask[i] == maskcolor) { - if (gray) { - dst[k] = dst[k + 1] = dst[k + 2] = 0x80; - } else { - int y = srcy[i]; - int u = srcu[j] - 128; - int v = srcv[j] - 128; - dst[k] = av_clip_uint8(y + ( 91881 * v + 32768 >> 16)); - dst[k + 1] = av_clip_uint8(y + (-22554 * u - 46802 * v + 32768 >> 16)); - dst[k + 2] = av_clip_uint8(y + (116130 * u + 32768 >> 16)); - } - } - } - mask += mask_stride; - dst += dst_stride; - srcy += srcy_stride; - srcu += srcuv_stride * (r & 1); - srcv += srcuv_stride * (r & 1); - } -} - -static void mss2_blit_wmv9_c(uint8_t *dst, int dst_stride, - const uint8_t *srcy, int srcy_stride, - const uint8_t *srcu, const uint8_t *srcv, - int srcuv_stride, int w, int h) -{ - mss2_blit_wmv9_template(dst, dst_stride, 0, 0, - 0, NULL, 0, - srcy, srcy_stride, - srcu, srcv, srcuv_stride, - w, h); -} - -static void mss2_blit_wmv9_masked_c(uint8_t *dst, int dst_stride, - int maskcolor, const uint8_t *mask, - int mask_stride, - const uint8_t *srcy, int srcy_stride, - const uint8_t *srcu, const uint8_t *srcv, - int srcuv_stride, int w, int h) -{ - mss2_blit_wmv9_template(dst, dst_stride, 0, 1, - maskcolor, mask, mask_stride, - srcy, srcy_stride, - srcu, srcv, srcuv_stride, - w, h); -} - -static void mss2_gray_fill_masked_c(uint8_t *dst, int dst_stride, - int maskcolor, const uint8_t *mask, - int mask_stride, int w, int h) -{ - mss2_blit_wmv9_template(dst, dst_stride, 1, 1, - maskcolor, mask, mask_stride, - NULL, 0, - NULL, NULL, 0, - w, h); -} - -static void upsample_plane_c(uint8_t *plane, int plane_stride, int w, int h) -{ - uint8_t *src1, *src2, *dst1, *dst2, *p, a, b; - int i, j; - - if(!w || !h) - return; - - w += (w & 1); - h += (h & 1); - - j = h - 1; - - memcpy(plane + plane_stride * j, - plane + plane_stride * (j >> 1), - w); - - while ((j -= 2) > 0) { - dst1 = plane + plane_stride * (j + 1); - dst2 = plane + plane_stride * j; - src1 = plane + plane_stride * ((j + 1) >> 1); - src2 = plane + plane_stride * ( j >> 1); - - for (i = (w - 1) >> 1; i >= 0; i--) { - a = src1[i]; - b = src2[i]; - dst1[i] = (3 * a + b + 2) >> 2; - dst2[i] = (a + 3 * b + 2) >> 2; - } - } - - for (j = h - 1; j >= 0; j--) { - p = plane + plane_stride * j; - i = w - 1; - - p[i] = p[i >> 1]; - - while ((i -= 2) > 0) { - a = p[ i >> 1]; - b = p[(i + 1) >> 1]; - p[i] = (3 * a + b + 1) >> 2; - p[i + 1] = (a + 3 * b + 1) >> 2; - } - } -} - -av_cold void ff_mss2dsp_init(MSS2DSPContext* dsp) -{ - dsp->mss2_blit_wmv9 = mss2_blit_wmv9_c; - dsp->mss2_blit_wmv9_masked = mss2_blit_wmv9_masked_c; - dsp->mss2_gray_fill_masked = mss2_gray_fill_masked_c; - dsp->upsample_plane = upsample_plane_c; -} |
