diff options
Diffstat (limited to 'libavcodec/vc1dsp.h')
-rw-r--r-- | libavcodec/vc1dsp.h | 22 |
1 files changed, 16 insertions, 6 deletions
diff --git a/libavcodec/vc1dsp.h b/libavcodec/vc1dsp.h index 7de6a3d..aa5b6d3 100644 --- a/libavcodec/vc1dsp.h +++ b/libavcodec/vc1dsp.h @@ -2,20 +2,20 @@ * VC-1 and WMV3 decoder - DSP functions * Copyright (c) 2006 Konstantin Shishkov * - * 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 */ @@ -31,6 +31,8 @@ #include "hpeldsp.h" #include "h264chroma.h" +typedef void (*vc1op_pixels_func)(uint8_t *block/*align width (8 or 16)*/, const uint8_t *pixels/*align 1*/, ptrdiff_t line_size, int h); + typedef struct VC1DSPContext { /* vc1 functions */ void (*vc1_inv_trans_8x8)(int16_t *b); @@ -55,8 +57,8 @@ typedef struct VC1DSPContext { /* put 8x8 block with bicubic interpolation and quarterpel precision * last argument is actually round value instead of height */ - op_pixels_func put_vc1_mspel_pixels_tab[16]; - op_pixels_func avg_vc1_mspel_pixels_tab[16]; + vc1op_pixels_func put_vc1_mspel_pixels_tab[2][16]; + vc1op_pixels_func avg_vc1_mspel_pixels_tab[2][16]; /* This is really one func used in VC-1 decoding */ h264_chroma_mc_func put_no_rnd_vc1_chroma_pixels_tab[3]; @@ -71,6 +73,14 @@ typedef struct VC1DSPContext { void (*sprite_v_double_twoscale)(uint8_t *dst, const uint8_t *src1a, const uint8_t *src1b, int offset1, const uint8_t *src2a, const uint8_t *src2b, int offset2, int alpha, int width); + + /** + * Search buf from the start for up to size bytes. Return the index + * of a zero byte, or >= size if not found. Ideally, use lookahead + * to filter out any zero bytes that are known to not be followed by + * one or more further zero bytes and a one byte. + */ + int (*vc1_find_start_code_candidate)(const uint8_t *buf, int size); } VC1DSPContext; void ff_vc1dsp_init(VC1DSPContext* c); |