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Diffstat (limited to 'plugins/dca/convert2s16.c')
-rw-r--r--plugins/dca/convert2s16.c218
1 files changed, 0 insertions, 218 deletions
diff --git a/plugins/dca/convert2s16.c b/plugins/dca/convert2s16.c
deleted file mode 100644
index b0647eae..00000000
--- a/plugins/dca/convert2s16.c
+++ /dev/null
@@ -1,218 +0,0 @@
-/*
- * convert2s16.c
- * Copyright (C) 2000-2003 Michel Lespinasse <walken@zoy.org>
- * Copyright (C) 1999-2000 Aaron Holtzman <aholtzma@ess.engr.uvic.ca>
- *
- * 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.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#include "config.h"
-
-#include <inttypes.h>
-
-#include "dca.h"
-
-#include <stdio.h>
-
-#ifdef LIBDCA_DOUBLE
-typedef float convert_t;
-#else
-typedef sample_t convert_t;
-#endif
-
-static inline int16_t convert (int32_t i)
-{
-#ifdef LIBDCA_FIXED
- i >>= 15;
-#else
- i -= 0x43c00000;
-#endif
- return (i > 32767) ? 32767 : ((i < -32768) ? -32768 : i);
-}
-
-void convert2s16_1 (convert_t * _f, int16_t * s16)
-{
- int i;
- int32_t * f = (int32_t *) _f;
-
- for (i = 0; i < 256; i++) {
- s16[i] = convert (f[i]);
- }
-}
-
-void convert2s16_2 (convert_t * _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 convert2s16_3 (convert_t * _f, int16_t * s16)
-{
- int i;
- int32_t * f = (int32_t *) _f;
-
- for (i = 0; i < 256; i++) {
- s16[3*i] = convert (f[i]);
- s16[3*i+1] = convert (f[i+256]);
- s16[3*i+2] = convert (f[i+512]);
- }
-}
-
-void convert2s16_4 (convert_t * _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 convert2s16_5 (convert_t * _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 & DCA_LFE)
- return 6;
- else if (flags & 1) /* center channel */
- return 5;
- else if ((flags & DCA_CHANNEL_MASK) == DCA_2F2R)
- return 4;
- else
- return 2;
-}
-
-void convert2s16_multi (convert_t * _f, int16_t * s16, int flags)
-{
- int i;
- int32_t * f = (int32_t *) _f;
-
- switch (flags) {
- case DCA_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 DCA_CHANNEL:
- case DCA_STEREO:
- case DCA_DOLBY:
- convert2s16_2 (_f, s16);
- break;
- case DCA_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 DCA_2F2R:
- convert2s16_4 (_f, s16);
- break;
- case DCA_3F2R:
- convert2s16_5 (_f, s16);
- break;
- case DCA_MONO | DCA_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 DCA_CHANNEL | DCA_LFE:
- case DCA_STEREO | DCA_LFE:
- case DCA_DOLBY | DCA_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 DCA_3F | DCA_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 DCA_2F2R | DCA_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 DCA_3F2R | DCA_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);
-}
-
-void s32_swap (int32_t * s32, int channels)
-{
- int i;
- uint32_t * u32 = (uint32_t *) s32;
-
- for (i = 0; i < 256 * channels; i++)
- u32[i] = (u32[i] << 24) | ((u32[i] << 8)&0xFF0000) |
- ((u32[i] >> 8)&0xFF00) | (u32[i] >> 24);
-}
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