X-Git-Url: http://git.cinelerra-gg.org/git/?a=blobdiff_plain;f=cinelerra-5.0%2Flibzmpeg3%2Fa52dec-0.7.3%2Flibao%2Ffloat2s16.c;fp=cinelerra-5.0%2Flibzmpeg3%2Fa52dec-0.7.3%2Flibao%2Ffloat2s16.c;h=0000000000000000000000000000000000000000;hb=30bdb85eb33a8ee7ba675038a86c6be59c43d7bd;hp=f814bcf4b1bddddb60de424d16cf18abbca704ab;hpb=52fcc46226f9df46f9ce9d0566dc568455a7db0b;p=goodguy%2Fhistory.git diff --git a/cinelerra-5.0/libzmpeg3/a52dec-0.7.3/libao/float2s16.c b/cinelerra-5.0/libzmpeg3/a52dec-0.7.3/libao/float2s16.c deleted file mode 100644 index f814bcf4..00000000 --- a/cinelerra-5.0/libzmpeg3/a52dec-0.7.3/libao/float2s16.c +++ /dev/null @@ -1,178 +0,0 @@ -/* - * float2s16.c - * Copyright (C) 2000-2002 Michel Lespinasse - * Copyright (C) 1999-2000 Aaron Holtzman - * - * This file is part of a52dec, a free ATSC A-52 stream decoder. - * See http://liba52.sourceforge.net/ for updates. - * - * a52dec is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * a52dec 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 General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - -#include "config.h" - -#include - -#include "a52.h" -#include "audio_out.h" - -static inline int16_t convert (int32_t i) -{ - if (i > 0x43c07fff) - return 32767; - else if (i < 0x43bf8000) - return -32768; - else - return i - 0x43c00000; -} - -void float2s16_2 (float * _f, int16_t * s16) -{ - int i; - int32_t * f = (int32_t *) _f; - - for (i = 0; i < 256; i++) { - s16[2*i] = convert (f[i]); - s16[2*i+1] = convert (f[i+256]); - } -} - -void float2s16_4 (float * _f, int16_t * s16) -{ - int i; - int32_t * f = (int32_t *) _f; - - for (i = 0; i < 256; i++) { - s16[4*i] = convert (f[i]); - s16[4*i+1] = convert (f[i+256]); - s16[4*i+2] = convert (f[i+512]); - s16[4*i+3] = convert (f[i+768]); - } -} - -void float2s16_5 (float * _f, int16_t * s16) -{ - int i; - int32_t * f = (int32_t *) _f; - - for (i = 0; i < 256; i++) { - s16[5*i] = convert (f[i]); - s16[5*i+1] = convert (f[i+256]); - s16[5*i+2] = convert (f[i+512]); - s16[5*i+3] = convert (f[i+768]); - s16[5*i+4] = convert (f[i+1024]); - } -} - -int channels_multi (int flags) -{ - if (flags & A52_LFE) - return 6; - else if (flags & 1) /* center channel */ - return 5; - else if ((flags & A52_CHANNEL_MASK) == A52_2F2R) - return 4; - else - return 2; -} - -void float2s16_multi (float * _f, int16_t * s16, int flags) -{ - int i; - int32_t * f = (int32_t *) _f; - - switch (flags) { - case A52_MONO: - for (i = 0; i < 256; i++) { - s16[5*i] = s16[5*i+1] = s16[5*i+2] = s16[5*i+3] = 0; - s16[5*i+4] = convert (f[i]); - } - break; - case A52_CHANNEL: - case A52_STEREO: - case A52_DOLBY: - float2s16_2 (_f, s16); - break; - case A52_3F: - for (i = 0; i < 256; i++) { - s16[5*i] = convert (f[i]); - s16[5*i+1] = convert (f[i+512]); - s16[5*i+2] = s16[5*i+3] = 0; - s16[5*i+4] = convert (f[i+256]); - } - break; - case A52_2F2R: - float2s16_4 (_f, s16); - break; - case A52_3F2R: - float2s16_5 (_f, s16); - break; - case A52_MONO | A52_LFE: - for (i = 0; i < 256; i++) { - s16[6*i] = s16[6*i+1] = s16[6*i+2] = s16[6*i+3] = 0; - s16[6*i+4] = convert (f[i+256]); - s16[6*i+5] = convert (f[i]); - } - break; - case A52_CHANNEL | A52_LFE: - case A52_STEREO | A52_LFE: - case A52_DOLBY | A52_LFE: - for (i = 0; i < 256; i++) { - s16[6*i] = convert (f[i+256]); - s16[6*i+1] = convert (f[i+512]); - s16[6*i+2] = s16[6*i+3] = s16[6*i+4] = 0; - s16[6*i+5] = convert (f[i]); - } - break; - case A52_3F | A52_LFE: - for (i = 0; i < 256; i++) { - s16[6*i] = convert (f[i+256]); - s16[6*i+1] = convert (f[i+768]); - s16[6*i+2] = s16[6*i+3] = 0; - s16[6*i+4] = convert (f[i+512]); - s16[6*i+5] = convert (f[i]); - } - break; - case A52_2F2R | A52_LFE: - for (i = 0; i < 256; i++) { - s16[6*i] = convert (f[i+256]); - s16[6*i+1] = convert (f[i+512]); - s16[6*i+2] = convert (f[i+768]); - s16[6*i+3] = convert (f[i+1024]); - s16[6*i+4] = 0; - s16[6*i+5] = convert (f[i]); - } - break; - case A52_3F2R | A52_LFE: - for (i = 0; i < 256; i++) { - s16[6*i] = convert (f[i+256]); - s16[6*i+1] = convert (f[i+768]); - s16[6*i+2] = convert (f[i+1024]); - s16[6*i+3] = convert (f[i+1280]); - s16[6*i+4] = convert (f[i+512]); - s16[6*i+5] = convert (f[i]); - } - break; - } -} - -void s16_swap (int16_t * s16, int channels) -{ - int i; - uint16_t * u16 = (uint16_t *) s16; - - for (i = 0; i < 256 * channels; i++) - u16[i] = (u16[i] >> 8) | (u16[i] << 8); -}