X-Git-Url: http://git.tuebingen.mpg.de/?p=paraslash.git;a=blobdiff_plain;f=compress.c;h=3e605d0e091a2bf4ffcfb99f21adf19550188036;hp=b7ddc28534106eede2ba8b7e6ad1b1d60a3b5510;hb=298ad3958d76fc775dfd0503ae4b1e43dce70f04;hpb=1dd66e3e7c80a95dbd4fedeb7978b3f32f66d2b1

diff --git a/compress.c b/compress.c
index b7ddc285..3e605d0e 100644
--- a/compress.c
+++ b/compress.c
@@ -36,7 +36,7 @@ struct private_compress_data {
 	/** the current multiplier */
 	unsigned current_gain;
 	/** points to the configuration data for this instance of the compress filter */
-	struct gengetopt_args_info *conf;
+	struct compress_filter_args_info *conf;
 	/** minimal admissible gain */
 	unsigned min_gain;
 	/** maximal admissible gain */
@@ -49,7 +49,8 @@ struct private_compress_data {
 
 static ssize_t compress(char *inbuf, size_t inbuf_len, struct filter_node *fn)
 {
-	size_t i, length = MIN((inbuf_len / 2) * 2, (fn->bufsize - fn->loaded) / 2 * 2);
+	size_t i, length = PARA_MIN((inbuf_len / 2) * 2,
+		(fn->bufsize - fn->loaded) / 2 * 2);
 	struct private_compress_data *pcd = fn->private_data;
 	int16_t *ip = (int16_t *)inbuf, *op = (int16_t *)(fn->buf + fn->loaded);
 	unsigned gain_shift = pcd->conf->inertia_arg + pcd->conf->damp_arg,
@@ -66,8 +67,8 @@ static ssize_t compress(char *inbuf, size_t inbuf_len, struct filter_node *fn)
 				>> gain_shift;
 			if (unlikely(adjusted_sample > 32767)) {
 				adjusted_sample = 32767;
-				pcd->current_gain = (pcd->current_gain +
-					(1 << pcd->conf->inertia_arg)) / 2;
+				pcd->current_gain = (3 * pcd->current_gain +
+					(1 << pcd->conf->inertia_arg)) / 4;
 				pcd->peak = 0;
 			} else
 				if (adjusted_sample > pcd->peak)
@@ -77,8 +78,8 @@ static ssize_t compress(char *inbuf, size_t inbuf_len, struct filter_node *fn)
 				>> gain_shift);
 			if (unlikely(adjusted_sample < -32768)) {
 				adjusted_sample = -32768;
-				pcd->current_gain = (pcd->current_gain +
-					(1 << pcd->conf->inertia_arg)) / 2;
+				pcd->current_gain = (3 * pcd->current_gain +
+					(1 << pcd->conf->inertia_arg)) / 4;
 				pcd->peak = 0;
 			} else
 				if (-adjusted_sample > pcd->peak)
@@ -111,7 +112,7 @@ static void close_compress(struct filter_node *fn)
 
 static void *compress_parse_config(int argc, char **argv)
 {
-	struct gengetopt_args_info *ret = para_calloc(sizeof(struct gengetopt_args_info));
+	struct compress_filter_args_info *ret = para_calloc(sizeof(struct compress_filter_args_info));
 	if (!compress_cmdline_parser(argc, argv, ret))
 		return ret;
 	free(ret);