/* * 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 */ #include <stdint.h> #include "config.h" #include "libavutil/attributes.h" #include "libavutil/intreadwrite.h" #include "avcodec.h" #include "pixblockdsp.h" static void get_pixels_16_c(int16_t *av_restrict block, const uint8_t *pixels, ptrdiff_t line_size) { AV_COPY128U(block + 0 * 8, pixels + 0 * line_size); AV_COPY128U(block + 1 * 8, pixels + 1 * line_size); AV_COPY128U(block + 2 * 8, pixels + 2 * line_size); AV_COPY128U(block + 3 * 8, pixels + 3 * line_size); AV_COPY128U(block + 4 * 8, pixels + 4 * line_size); AV_COPY128U(block + 5 * 8, pixels + 5 * line_size); AV_COPY128U(block + 6 * 8, pixels + 6 * line_size); AV_COPY128U(block + 7 * 8, pixels + 7 * line_size); } static void get_pixels_8_c(int16_t *av_restrict block, const uint8_t *pixels, ptrdiff_t line_size) { int i; /* read the pixels */ for (i = 0; i < 8; i++) { block[0] = pixels[0]; block[1] = pixels[1]; block[2] = pixels[2]; block[3] = pixels[3]; block[4] = pixels[4]; block[5] = pixels[5]; block[6] = pixels[6]; block[7] = pixels[7]; pixels += line_size; block += 8; } } static void diff_pixels_c(int16_t *av_restrict block, const uint8_t *s1, const uint8_t *s2, int stride) { int i; /* read the pixels */ for (i = 0; i < 8; i++) { block[0] = s1[0] - s2[0]; block[1] = s1[1] - s2[1]; block[2] = s1[2] - s2[2]; block[3] = s1[3] - s2[3]; block[4] = s1[4] - s2[4]; block[5] = s1[5] - s2[5]; block[6] = s1[6] - s2[6]; block[7] = s1[7] - s2[7]; s1 += stride; s2 += stride; block += 8; } } av_cold void ff_pixblockdsp_init(PixblockDSPContext *c, AVCodecContext *avctx) { const unsigned high_bit_depth = avctx->bits_per_raw_sample > 8; c->diff_pixels = diff_pixels_c; switch (avctx->bits_per_raw_sample) { case 9: case 10: case 12: case 14: c->get_pixels = get_pixels_16_c; break; default: if (avctx->bits_per_raw_sample<=8 || avctx->codec_type != AVMEDIA_TYPE_VIDEO) { c->get_pixels = get_pixels_8_c; } break; } if (ARCH_ALPHA) ff_pixblockdsp_init_alpha(c, avctx, high_bit_depth); if (ARCH_ARM) ff_pixblockdsp_init_arm(c, avctx, high_bit_depth); if (ARCH_PPC) ff_pixblockdsp_init_ppc(c, avctx, high_bit_depth); if (ARCH_X86) ff_pixblockdsp_init_x86(c, avctx, high_bit_depth); if (ARCH_MIPS) ff_pixblockdsp_init_mips(c, avctx, high_bit_depth); }