repositories / deb_ffmpeg.git / blame
| Commit | Line | Data |
|---|---|---|
| 2ba45a60 DM |
1 | /* |
| 2 | * This file is part of FFmpeg. | |
| 3 | * | |
| 4 | * FFmpeg is free software; you can redistribute it and/or | |
| 5 | * modify it under the terms of the GNU Lesser General Public | |
| 6 | * License as published by the Free Software Foundation; either | |
| 7 | * version 2.1 of the License, or (at your option) any later version. | |
| 8 | * | |
| 9 | * FFmpeg is distributed in the hope that it will be useful, | |
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 12 | * Lesser General Public License for more details. | |
| 13 | * | |
| 14 | * You should have received a copy of the GNU Lesser General Public | |
| 15 | * License along with FFmpeg; if not, write to the Free Software | |
| 16 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
| 17 | */ | |
| 18 | ||
| 19 | #include <stdint.h> | |
| 20 | ||
| 21 | #include "config.h" | |
| 22 | #include "libavutil/attributes.h" | |
| 23 | #include "avcodec.h" | |
| 24 | #include "pixblockdsp.h" | |
| 25 | ||
| 26 | #define BIT_DEPTH 16 | |
| 27 | #include "pixblockdsp_template.c" | |
| 28 | #undef BIT_DEPTH | |
| 29 | ||
| 30 | #define BIT_DEPTH 8 | |
| 31 | #include "pixblockdsp_template.c" | |
| 32 | ||
| 33 | static void diff_pixels_c(int16_t *av_restrict block, const uint8_t *s1, | |
| 34 | const uint8_t *s2, int stride) | |
| 35 | { | |
| 36 | int i; | |
| 37 | ||
| 38 | /* read the pixels */ | |
| 39 | for (i = 0; i < 8; i++) { | |
| 40 | block[0] = s1[0] - s2[0]; | |
| 41 | block[1] = s1[1] - s2[1]; | |
| 42 | block[2] = s1[2] - s2[2]; | |
| 43 | block[3] = s1[3] - s2[3]; | |
| 44 | block[4] = s1[4] - s2[4]; | |
| 45 | block[5] = s1[5] - s2[5]; | |
| 46 | block[6] = s1[6] - s2[6]; | |
| 47 | block[7] = s1[7] - s2[7]; | |
| 48 | s1 += stride; | |
| 49 | s2 += stride; | |
| 50 | block += 8; | |
| 51 | } | |
| 52 | } | |
| 53 | ||
| 54 | av_cold void ff_pixblockdsp_init(PixblockDSPContext *c, AVCodecContext *avctx) | |
| 55 | { | |
| 56 | const unsigned high_bit_depth = avctx->bits_per_raw_sample > 8; | |
| 57 | ||
| 58 | c->diff_pixels = diff_pixels_c; | |
| 59 | ||
| 60 | switch (avctx->bits_per_raw_sample) { | |
| 61 | case 9: | |
| 62 | case 10: | |
| 63 | case 12: | |
| 64 | case 14: | |
| 65 | c->get_pixels = get_pixels_16_c; | |
| 66 | break; | |
| 67 | default: | |
| 68 | if (avctx->bits_per_raw_sample<=8 || avctx->codec_type != AVMEDIA_TYPE_VIDEO) { | |
| 69 | c->get_pixels = get_pixels_8_c; | |
| 70 | } | |
| 71 | break; | |
| 72 | } | |
| 73 | ||
| 74 | if (ARCH_ALPHA) | |
| 75 | ff_pixblockdsp_init_alpha(c, avctx, high_bit_depth); | |
| 76 | if (ARCH_ARM) | |
| 77 | ff_pixblockdsp_init_arm(c, avctx, high_bit_depth); | |
| 78 | if (ARCH_PPC) | |
| 79 | ff_pixblockdsp_init_ppc(c, avctx, high_bit_depth); | |
| 80 | if (ARCH_X86) | |
| 81 | ff_pixblockdsp_init_x86(c, avctx, high_bit_depth); | |
| 82 | } |