X-Git-Url: http://4ch.mooo.com/gitweb/?a=blobdiff_plain;f=src%2Flib%2Fdoslib%2Fext%2Fvorbtool%2Fresample.h;fp=src%2Flib%2Fdoslib%2Fext%2Fvorbtool%2Fresample.h;h=0000000000000000000000000000000000000000;hb=10d8a0d8b1b72502f34c2ac1bd3a5c2d87849080;hp=9888113052a7833c5801f2ed0ede5d91e2db0a0a;hpb=bc10e84da5198561bb96cf8eb459f59b8b0739ec;p=16.git diff --git a/src/lib/doslib/ext/vorbtool/resample.h b/src/lib/doslib/ext/vorbtool/resample.h deleted file mode 100755 index 98881130..00000000 --- a/src/lib/doslib/ext/vorbtool/resample.h +++ /dev/null @@ -1,107 +0,0 @@ -/* This program is licensed under the GNU Library General Public License, - * version 2, a copy of which is included with this program (LICENCE.LGPL). - * - * (c) 2002 Simon Hosie - * - * - * A resampler - * - * reference: - * 'Digital Filters', third edition, by R. W. Hamming ISBN 0-486-65088-X - * - * history: - * 2002-05-31 ready for the world (or some small section thereof) - * - * - * TOOD: - * zero-crossing clipping in coefficient table - */ - -#ifndef _RESAMPLE_H_INCLUDED -#define _RESAMPLE_H_INCLUDED - -typedef float SAMPLE; - -typedef struct -{ - unsigned int channels, infreq, outfreq, taps; - float *table; - SAMPLE *pool; - - /* dynamic bits */ - int poolfill; - int offset; -} res_state; - -typedef enum -{ - RES_END, - RES_GAIN, /* (double)1.0 */ - RES_CUTOFF, /* (double)0.80 */ - RES_TAPS, /* (int)45 */ - RES_BETA /* (double)16.0 */ -} res_parameter; - -int res_init(res_state *state, int channels, int outfreq, int infreq, res_parameter op1, ...); -/* - * Configure *state to manage a data stream with the specified parameters. The - * string 'params' is currently unspecified, but will configure the parameters - * of the filter. - * - * This function allocates memory, and requires that res_clear() be called when - * the buffer is no longer needed. - * - * - * All counts/lengths used in the following functions consider only the data in - * a single channel, and in numbers of samples rather than bytes, even though - * functionality will be mirrored across as many channels as specified here. - */ - - -int res_push_max_input(res_state const *state, size_t maxoutput); -/* - * Returns the maximum number of input elements that may be provided without - * risk of flooding an output buffer of size maxoutput. maxoutput is - * specified in counts of elements, NOT in bytes. - */ - - -int res_push_check(res_state const *state, size_t srclen); -/* - * Returns the number of elements that will be returned if the given srclen - * is used in the next call to res_push(). - */ - - -int res_push(res_state *state, SAMPLE **dstlist, SAMPLE const **srclist, size_t srclen); -int res_push_interleaved(res_state *state, SAMPLE *dest, SAMPLE const *source, size_t srclen); -/* - * Pushes srclen samples into the front end of the filter, and returns the - * number of resulting samples. - * - * res_push(): srclist and dstlist point to lists of pointers, each of which - * indicates the beginning of a list of samples. - * - * res_push_interleaved(): source and dest point to the beginning of a list of - * interleaved samples. - */ - - -int res_drain(res_state *state, SAMPLE **dstlist); -int res_drain_interleaved(res_state *state, SAMPLE *dest); -/* - * Recover the remaining elements by flushing the internal pool with 0 values, - * and storing the resulting samples. - * - * After either of these functions are called, *state should only re-used in a - * final call to res_clear(). - */ - - -void res_clear(res_state *state); -/* - * Free allocated buffers, etc. - */ - -#endif -