diff options
Diffstat (limited to 'ffmpeg/libavcodec/flacdsp_lpc_template.c')
| -rw-r--r-- | ffmpeg/libavcodec/flacdsp_lpc_template.c | 141 |
1 files changed, 0 insertions, 141 deletions
diff --git a/ffmpeg/libavcodec/flacdsp_lpc_template.c b/ffmpeg/libavcodec/flacdsp_lpc_template.c deleted file mode 100644 index 0c453ae..0000000 --- a/ffmpeg/libavcodec/flacdsp_lpc_template.c +++ /dev/null @@ -1,141 +0,0 @@ -/* - * 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 "libavutil/avutil.h" -#include "mathops.h" - -#undef FUNC -#undef sum_type -#undef MUL -#undef CLIP -#undef FSUF - -#define FUNC(n) AV_JOIN(n ## _, SAMPLE_SIZE) - -#if SAMPLE_SIZE == 32 -# define sum_type int64_t -# define MUL(a, b) MUL64(a, b) -# define CLIP(x) av_clipl_int32(x) -#else -# define sum_type int32_t -# define MUL(a, b) ((a) * (b)) -# define CLIP(x) (x) -#endif - -#define LPC1(x) { \ - int c = coefs[(x)-1]; \ - p0 += MUL(c, s); \ - s = smp[i-(x)+1]; \ - p1 += MUL(c, s); \ -} - -static av_always_inline void FUNC(lpc_encode_unrolled)(int32_t *res, - const int32_t *smp, int len, int order, - const int32_t *coefs, int shift, int big) -{ - int i; - for (i = order; i < len; i += 2) { - int s = smp[i-order]; - sum_type p0 = 0, p1 = 0; - if (big) { - switch (order) { - case 32: LPC1(32) - case 31: LPC1(31) - case 30: LPC1(30) - case 29: LPC1(29) - case 28: LPC1(28) - case 27: LPC1(27) - case 26: LPC1(26) - case 25: LPC1(25) - case 24: LPC1(24) - case 23: LPC1(23) - case 22: LPC1(22) - case 21: LPC1(21) - case 20: LPC1(20) - case 19: LPC1(19) - case 18: LPC1(18) - case 17: LPC1(17) - case 16: LPC1(16) - case 15: LPC1(15) - case 14: LPC1(14) - case 13: LPC1(13) - case 12: LPC1(12) - case 11: LPC1(11) - case 10: LPC1(10) - case 9: LPC1( 9) - LPC1( 8) - LPC1( 7) - LPC1( 6) - LPC1( 5) - LPC1( 4) - LPC1( 3) - LPC1( 2) - LPC1( 1) - } - } else { - switch (order) { - case 8: LPC1( 8) - case 7: LPC1( 7) - case 6: LPC1( 6) - case 5: LPC1( 5) - case 4: LPC1( 4) - case 3: LPC1( 3) - case 2: LPC1( 2) - case 1: LPC1( 1) - } - } - res[i ] = smp[i ] - CLIP(p0 >> shift); - res[i+1] = smp[i+1] - CLIP(p1 >> shift); - } -} - -static void FUNC(flac_lpc_encode_c)(int32_t *res, const int32_t *smp, int len, - int order, const int32_t *coefs, int shift) -{ - int i; - for (i = 0; i < order; i++) - res[i] = smp[i]; -#if CONFIG_SMALL - for (i = order; i < len; i += 2) { - int j; - int s = smp[i]; - sum_type p0 = 0, p1 = 0; - for (j = 0; j < order; j++) { - int c = coefs[j]; - p1 += MUL(c, s); - s = smp[i-j-1]; - p0 += MUL(c, s); - } - res[i ] = smp[i ] - CLIP(p0 >> shift); - res[i+1] = smp[i+1] - CLIP(p1 >> shift); - } -#else - switch (order) { - case 1: FUNC(lpc_encode_unrolled)(res, smp, len, 1, coefs, shift, 0); break; - case 2: FUNC(lpc_encode_unrolled)(res, smp, len, 2, coefs, shift, 0); break; - case 3: FUNC(lpc_encode_unrolled)(res, smp, len, 3, coefs, shift, 0); break; - case 4: FUNC(lpc_encode_unrolled)(res, smp, len, 4, coefs, shift, 0); break; - case 5: FUNC(lpc_encode_unrolled)(res, smp, len, 5, coefs, shift, 0); break; - case 6: FUNC(lpc_encode_unrolled)(res, smp, len, 6, coefs, shift, 0); break; - case 7: FUNC(lpc_encode_unrolled)(res, smp, len, 7, coefs, shift, 0); break; - case 8: FUNC(lpc_encode_unrolled)(res, smp, len, 8, coefs, shift, 0); break; - default: FUNC(lpc_encode_unrolled)(res, smp, len, order, coefs, shift, 1); break; - } -#endif -} |