diff options
Diffstat (limited to 'libavcodec/x86/mpegvideodsp.c')
| -rw-r--r-- | libavcodec/x86/mpegvideodsp.c | 22 |
1 files changed, 15 insertions, 7 deletions
diff --git a/libavcodec/x86/mpegvideodsp.c b/libavcodec/x86/mpegvideodsp.c index 0e5dd0f153..941a8e2e4c 100644 --- a/libavcodec/x86/mpegvideodsp.c +++ b/libavcodec/x86/mpegvideodsp.c @@ -1,18 +1,18 @@ /* - * 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 */ @@ -22,6 +22,7 @@ #include "libavutil/x86/asm.h" #include "libavutil/x86/cpu.h" #include "libavcodec/mpegvideodsp.h" +#include "libavcodec/videodsp.h" #if HAVE_INLINE_ASM @@ -43,20 +44,24 @@ static void gmc_mmx(uint8_t *dst, uint8_t *src, const uint16_t dxy4[4] = { dxys, dxys, dxys, dxys }; const uint16_t dyy4[4] = { dyys, dyys, dyys, dyys }; const uint64_t shift2 = 2 * shift; +#define MAX_STRIDE 4096U +#define MAX_H 8U + uint8_t edge_buf[(MAX_H + 1) * MAX_STRIDE]; int x, y; const int dxw = (dxx - (1 << (16 + shift))) * (w - 1); const int dyh = (dyy - (1 << (16 + shift))) * (h - 1); const int dxh = dxy * (h - 1); const int dyw = dyx * (w - 1); + int need_emu = (unsigned) ix >= width - w || + (unsigned) iy >= height - h; if ( // non-constant fullpel offset (3% of blocks) ((ox ^ (ox + dxw)) | (ox ^ (ox + dxh)) | (ox ^ (ox + dxw + dxh)) | (oy ^ (oy + dyw)) | (oy ^ (oy + dyh)) | (oy ^ (oy + dyw + dyh))) >> (16 + shift) || // uses more than 16 bits of subpel mv (only at huge resolution) (dxx | dxy | dyx | dyy) & 15 || - (unsigned) ix >= width - w || - (unsigned) iy >= height - h) { + (need_emu && (h > MAX_H || stride > MAX_STRIDE))) { // FIXME could still use mmx for some of the rows ff_gmc_c(dst, src, stride, h, ox, oy, dxx, dxy, dyx, dyy, shift, r, width, height); @@ -64,6 +69,10 @@ static void gmc_mmx(uint8_t *dst, uint8_t *src, } src += ix + iy * stride; + if (need_emu) { + ff_emulated_edge_mc_8(edge_buf, src, stride, stride, w + 1, h + 1, ix, iy, width, height); + src = edge_buf; + } __asm__ volatile ( "movd %0, %%mm6 \n\t" @@ -150,4 +159,3 @@ av_cold void ff_mpegvideodsp_init_x86(MpegVideoDSPContext *c) c->gmc = gmc_mmx; #endif /* HAVE_INLINE_ASM */ } - |