Rename filter source files.

[paraslash.git] / wav.c

diff --git a/wav.c b/wav.c
deleted file mode 100644 (file)
index ad3458d..0000000
--- a/wav.c
+++ /dev/null
@@ -1,121 +0,0 @@
-/*
- * Copyright (C) 2005-2008 Andre Noll <maan@systemlinux.org>
- *
- * Licensed under the GPL v2. For licencing details see COPYING.
- */
-
-/** \file wav.c a filter that inserts a wave header */
-
-#include "para.h"
-
-#include "list.h"
-#include "sched.h"
-#include "filter.h"
-#include "string.h"
-
-/** size of the output buffer */
-#define WAV_OUTBUF_SIZE 81920
-/** a wav header is always 44 bytes */
-#define WAV_HEADER_LEN 44
-/** always write 16 bit header */
-#define BITS 16
-
-/**
- * write a 32 bit unsigned value to a buffer
- *
- * \param buf the buffer to write to
- * \param x the value to write
- */
-#define WRITE_U32(buf, x) (buf)[0] = (unsigned char)((x) & 0xff);\
-       (buf)[1] = (unsigned char)(((x) >> 8) & 0xff);\
-       (buf)[2] = (unsigned char)(((x) >> 16) & 0xff);\
-       (buf)[3] = (unsigned char)(((x) >> 24) & 0xff);
-
-/**
- * write a 16 bit unsigned value to a buffer
- *
- * \param buf the buffer to write to
- * \param x the value to write
- */
-#define WRITE_U16(buf, x) (buf)[0] = (unsigned char)((x) & 0xff);
-
-static void make_wav_header(unsigned int channels, unsigned int samplerate,
-               struct filter_node *fn)
-{
-
-       char *headbuf = fn->buf;
-       unsigned int size = 0x7fffffff;
-       int bytespersec = channels * samplerate * BITS / 8;
-       int align = channels * BITS / 8;
-
-       assert(channels);
-       PARA_DEBUG_LOG("writing wave header: %d channels, %d KHz\n", channels, samplerate);
-       memset(headbuf, 0, WAV_HEADER_LEN);
-       memcpy(headbuf, "RIFF", 4);
-       WRITE_U32(headbuf + 4, size - 8);
-       memcpy(headbuf + 8, "WAVE", 4);
-       memcpy(headbuf + 12, "fmt ", 4);
-       WRITE_U32(headbuf + 16, 16);
-       WRITE_U16(headbuf + 20, 1);     /* format */
-       WRITE_U16(headbuf + 22, channels);
-       WRITE_U32(headbuf + 24, samplerate);
-       WRITE_U32(headbuf + 28, bytespersec);
-       WRITE_U16(headbuf + 32, align);
-       WRITE_U16(headbuf + 34, BITS);
-       memcpy(headbuf + 36, "data", 4);
-       WRITE_U32(headbuf + 40, size - 44);
-}
-
-static ssize_t wav_convert(char *inbuf, size_t len, struct filter_node *fn)
-{
-       size_t copy;
-       int *bof = fn->private_data;
-
-       if (*bof) {
-               if (!len)
-                       return 0;
-               make_wav_header(fn->fc->channels, fn->fc->samplerate, fn);
-               fn->loaded = WAV_HEADER_LEN;
-               *bof = 0;
-//             return 0;
-       }
-       copy = PARA_MIN(len, fn->bufsize - fn->loaded);
-       memmove(fn->buf + fn->loaded, inbuf, copy);
-       fn->loaded += copy;
-//     PARA_DEBUG_LOG("len = %d, copy = %d\n", len, copy);
-       return copy;
-}
-
-static void wav_close(struct filter_node *fn)
-{
-       free(fn->buf);
-       fn->buf = NULL;
-       free(fn->private_data);
-       fn->private_data = NULL;
-}
-
-static void wav_open(struct filter_node *fn)
-{
-       int *bof;
-
-       fn->bufsize = WAV_OUTBUF_SIZE;
-       fn->buf = para_malloc(fn->bufsize);
-       fn->private_data = para_malloc(sizeof(int));
-       bof = fn->private_data;
-       fn->loaded = 0;
-       *bof = 1;
-       PARA_INFO_LOG("wav filter node: %p, output buffer: %p, loaded: %zd\n",
-               fn, fn->buf, fn->loaded);
-}
-
-/**
- * the init function of the wav filter
- *
- * \param f struct to initialize
- */
-void wav_filter_init(struct filter *f)
-{
-       f->convert = wav_convert;
-       f->close = wav_close;
-       f->open = wav_open;
-}