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-rw-r--r--trunk/codecs/codec_resample.c237
1 files changed, 0 insertions, 237 deletions
diff --git a/trunk/codecs/codec_resample.c b/trunk/codecs/codec_resample.c
deleted file mode 100644
index 251d99c23..000000000
--- a/trunk/codecs/codec_resample.c
+++ /dev/null
@@ -1,237 +0,0 @@
-/*
- * Asterisk -- An open source telephony toolkit.
- *
- * Copyright (C) 2007, Digium, Inc.
- *
- * Russell Bryant <russell@digium.com>
- *
- * See http://www.asterisk.org for more information about
- * the Asterisk project. Please do not directly contact
- * any of the maintainers of this project for assistance;
- * the project provides a web site, mailing lists and IRC
- * channels for your use.
- *
- * This program is free software, distributed under the terms of
- * the GNU General Public License Version 2. See the LICENSE file
- * at the top of the source tree.
- */
-
-/*!
- * \file
- *
- * \brief Resample slinear audio
- *
- * \ingroup codecs
- */
-
-#include "asterisk.h"
-
-ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
-
-/* These are for SHRT_MAX and FLT_MAX -- { */
-#if defined(__Darwin__) || defined(__OpenBSD__) || defined(__FreeBSD__) || defined(__NetBSD__) || defined(__CYGWIN__)
-#include <float.h>
-#else
-#include <values.h>
-#endif
-#include <limits.h>
-/* } */
-
-#include "asterisk/module.h"
-#include "asterisk/translate.h"
-#include "asterisk/libresample.h"
-
-#include "slin_resample_ex.h"
-
-#define RESAMPLER_QUALITY 0
-
-#define OUTBUF_SIZE 8096
-
-struct slin16_to_slin8_pvt {
- void *resampler;
- float resample_factor;
-};
-
-struct slin8_to_slin16_pvt {
- void *resampler;
- float resample_factor;
-};
-
-static int slin16_to_slin8_new(struct ast_trans_pvt *pvt)
-{
- struct slin16_to_slin8_pvt *resamp_pvt = pvt->pvt;
-
- resamp_pvt->resample_factor = 0.5;
-
- if (!(resamp_pvt->resampler = resample_open(RESAMPLER_QUALITY, 0.5, 0.5)))
- return -1;
-
- return 0;
-}
-
-static int slin8_to_slin16_new(struct ast_trans_pvt *pvt)
-{
- struct slin8_to_slin16_pvt *resamp_pvt = pvt->pvt;
-
- resamp_pvt->resample_factor = 2.0;
-
- if (!(resamp_pvt->resampler = resample_open(RESAMPLER_QUALITY, 2.0, 2.0)))
- return -1;
-
- return 0;
-}
-
-static void slin16_to_slin8_destroy(struct ast_trans_pvt *pvt)
-{
- struct slin16_to_slin8_pvt *resamp_pvt = pvt->pvt;
-
- if (resamp_pvt->resampler)
- resample_close(resamp_pvt->resampler);
-}
-
-static void slin8_to_slin16_destroy(struct ast_trans_pvt *pvt)
-{
- struct slin8_to_slin16_pvt *resamp_pvt = pvt->pvt;
-
- if (resamp_pvt->resampler)
- resample_close(resamp_pvt->resampler);
-}
-
-static int resample_frame(struct ast_trans_pvt *pvt,
- void *resampler, float resample_factor, struct ast_frame *f)
-{
- int total_in_buf_used = 0;
- int total_out_buf_used = 0;
- int16_t *in_buf = (int16_t *) f->data;
- int16_t *out_buf = (int16_t *) pvt->outbuf + pvt->samples;
- float in_buf_f[f->samples];
- float out_buf_f[2048];
- int res = 0;
- int i;
-
- for (i = 0; i < f->samples; i++)
- in_buf_f[i] = in_buf[i] * (FLT_MAX / SHRT_MAX);
-
- while (total_in_buf_used < f->samples) {
- int in_buf_used, out_buf_used;
-
- out_buf_used = resample_process(resampler, resample_factor,
- &in_buf_f[total_in_buf_used], f->samples - total_in_buf_used,
- 0, &in_buf_used,
- &out_buf_f[total_out_buf_used], ARRAY_LEN(out_buf_f) - total_out_buf_used);
-
- if (out_buf_used < 0)
- break;
-
- total_out_buf_used += out_buf_used;
- total_in_buf_used += in_buf_used;
-
- if (total_out_buf_used == ARRAY_LEN(out_buf_f)) {
- ast_log(LOG_ERROR, "Output buffer filled ... need to increase its size\n");
- res = -1;
- break;
- }
- }
-
- for (i = 0; i < total_out_buf_used; i++)
- out_buf[i] = out_buf_f[i] * (SHRT_MAX / FLT_MAX);
-
- pvt->samples += total_out_buf_used;
- pvt->datalen += (total_out_buf_used * sizeof(int16_t));
-
- return res;
-}
-
-static int slin16_to_slin8_framein(struct ast_trans_pvt *pvt, struct ast_frame *f)
-{
- struct slin16_to_slin8_pvt *resamp_pvt = pvt->pvt;
- void *resampler = resamp_pvt->resampler;
- float resample_factor = resamp_pvt->resample_factor;
-
- return resample_frame(pvt, resampler, resample_factor, f);
-}
-
-static int slin8_to_slin16_framein(struct ast_trans_pvt *pvt, struct ast_frame *f)
-{
- struct slin8_to_slin16_pvt *resamp_pvt = pvt->pvt;
- void *resampler = resamp_pvt->resampler;
- float resample_factor = resamp_pvt->resample_factor;
-
- return resample_frame(pvt, resampler, resample_factor, f);
-}
-
-static struct ast_frame *slin16_to_slin8_sample(void)
-{
- static struct ast_frame f = {
- .frametype = AST_FRAME_VOICE,
- .subclass = AST_FORMAT_SLINEAR16,
- .datalen = sizeof(slin16_slin8_ex),
- .samples = sizeof(slin16_slin8_ex) / sizeof(slin16_slin8_ex[0]),
- .src = __PRETTY_FUNCTION__,
- .data = slin16_slin8_ex,
- };
-
- return &f;
-}
-
-static struct ast_frame *slin8_to_slin16_sample(void)
-{
- static struct ast_frame f = {
- .frametype = AST_FRAME_VOICE,
- .subclass = AST_FORMAT_SLINEAR,
- .datalen = sizeof(slin8_slin16_ex),
- .samples = sizeof(slin8_slin16_ex) / sizeof(slin8_slin16_ex[0]),
- .src = __PRETTY_FUNCTION__,
- .data = slin8_slin16_ex,
- };
-
- return &f;
-}
-
-static struct ast_translator slin16_to_slin8 = {
- .name = "slin16_to_slin8",
- .srcfmt = AST_FORMAT_SLINEAR16,
- .dstfmt = AST_FORMAT_SLINEAR,
- .newpvt = slin16_to_slin8_new,
- .destroy = slin16_to_slin8_destroy,
- .framein = slin16_to_slin8_framein,
- .sample = slin16_to_slin8_sample,
- .desc_size = sizeof(struct slin16_to_slin8_pvt),
- .buffer_samples = (OUTBUF_SIZE / sizeof(int16_t)),
- .buf_size = OUTBUF_SIZE,
-};
-
-static struct ast_translator slin8_to_slin16 = {
- .name = "slin8_to_slin16",
- .srcfmt = AST_FORMAT_SLINEAR,
- .dstfmt = AST_FORMAT_SLINEAR16,
- .newpvt = slin8_to_slin16_new,
- .destroy = slin8_to_slin16_destroy,
- .framein = slin8_to_slin16_framein,
- .sample = slin8_to_slin16_sample,
- .desc_size = sizeof(struct slin8_to_slin16_pvt),
- .buffer_samples = (OUTBUF_SIZE / sizeof(int16_t)),
- .buf_size = OUTBUF_SIZE,
-};
-
-static int unload_module(void)
-{
- int res = 0;
-
- res |= ast_unregister_translator(&slin16_to_slin8);
- res |= ast_unregister_translator(&slin8_to_slin16);
-
- return res;
-}
-
-static int load_module(void)
-{
- int res = 0;
-
- res |= ast_register_translator(&slin16_to_slin8);
- res |= ast_register_translator(&slin8_to_slin16);
-
- return AST_MODULE_LOAD_SUCCESS;
-}
-
-AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "SLIN Resampling Codec");
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-24 04:42:01 +0000