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authorThomas Vander Stichele <thomas@apestaart.org>2005-08-14 16:10:55 +0000
committerThomas Vander Stichele <thomas@apestaart.org>2005-08-14 16:10:55 +0000
commit7b26b4d9506a592b17d19de83c4f105068c236b4 (patch)
treebfef0606edfbf0c0e2899d5e6948896886d148fc /gst/equalizer
parent59c9b655e1eaefd977d74721177c4f028146aecc (diff)
licensing, name and description changes
Original commit message from CVS: licensing, name and description changes
Diffstat (limited to 'gst/equalizer')
-rw-r--r--gst/equalizer/gstiirequalizer.c115
1 files changed, 57 insertions, 58 deletions
diff --git a/gst/equalizer/gstiirequalizer.c b/gst/equalizer/gstiirequalizer.c
index c7819792..0a4a24dc 100644
--- a/gst/equalizer/gstiirequalizer.c
+++ b/gst/equalizer/gstiirequalizer.c
@@ -219,8 +219,7 @@ static void
setup_filter (GstIirEqualizer * equ, SecondOrderFilter * filter, gdouble gain,
gdouble frequency)
{
- gdouble q =
- pow (HIGHEST_FREQ / LOWEST_FREQ,
+ gdouble q = pow (HIGHEST_FREQ / LOWEST_FREQ,
1.0 / (equ->freq_count - 1)) * equ->bandwidth;
gdouble theta = frequency * 2 * M_PI;
@@ -341,64 +340,64 @@ gst_iir_equalizer_get_property (GObject * object, guint prop_id,
/* start of code that is type specific */
-#define CREATE_OPTIMIZED_FUNCTIONS(TYPE,BIG_TYPE,MIN_VAL,MAX_VAL) \
-typedef struct { \
- TYPE x1, x2; /* history of input values for a filter */ \
- TYPE y1, y2; /* history of output values for a filter */ \
-} SecondOrderHistory ## TYPE; \
- \
-static inline TYPE \
-one_step_ ## TYPE (SecondOrderFilter *filter, \
- SecondOrderHistory ## TYPE *history, TYPE input) \
-{ \
- /* calculate output */ \
- TYPE output = filter->alpha * (input - history->x2) + \
- filter->gamma * history->y1 - filter->beta * history->y2; \
- /* update history */ \
- history->y2 = history->y1; \
- history->y1 = output; \
- history->x2 = history->x1; \
- history->x1 = input; \
- \
- return output; \
-} \
- \
-static const guint history_size_ ## TYPE = sizeof (SecondOrderHistory ## TYPE); \
- \
-static void \
-gst_iir_equ_process_ ## TYPE (GstIirEqualizer *equ, guint8 *data, guint size, \
- guint channels) \
-{ \
- guint frames = size / channels / sizeof (TYPE); \
- guint i, c, f; \
- BIG_TYPE cur; \
- TYPE val; \
- \
- for (i = 0; i < frames; i++) { \
- for (c = 0; c < channels; c++) { \
- SecondOrderHistory ## TYPE *history = equ->history; \
- val = *((TYPE *) data); \
- cur = 0; \
- for (f = 0; f < equ->freq_count; f++) { \
- SecondOrderFilter *filter = &equ->filter[f]; \
- \
- cur += one_step_ ## TYPE (filter, history, val); \
- history++; \
- } \
- cur += val * 0.25; \
- cur = CLAMP (cur, MIN_VAL, MAX_VAL); \
- *((TYPE *) data) = (TYPE) cur; \
- data += sizeof (TYPE); \
- } \
- } \
+#define CREATE_OPTIMIZED_FUNCTIONS(TYPE,BIG_TYPE,MIN_VAL,MAX_VAL) \
+typedef struct { \
+ TYPE x1, x2; /* history of input values for a filter */ \
+ TYPE y1, y2; /* history of output values for a filter */ \
+} SecondOrderHistory ## TYPE; \
+ \
+static inline TYPE \
+one_step_ ## TYPE (SecondOrderFilter *filter, \
+ SecondOrderHistory ## TYPE *history, TYPE input) \
+{ \
+ /* calculate output */ \
+ TYPE output = filter->alpha * (input - history->x2) + \
+ filter->gamma * history->y1 - filter->beta * history->y2; \
+ /* update history */ \
+ history->y2 = history->y1; \
+ history->y1 = output; \
+ history->x2 = history->x1; \
+ history->x1 = input; \
+ \
+ return output; \
+} \
+ \
+static const guint \
+history_size_ ## TYPE = sizeof (SecondOrderHistory ## TYPE); \
+ \
+static void \
+gst_iir_equ_process_ ## TYPE (GstIirEqualizer *equ, guint8 *data, \
+guint size, guint channels) \
+{ \
+ guint frames = size / channels / sizeof (TYPE); \
+ guint i, c, f; \
+ BIG_TYPE cur; \
+ TYPE val; \
+ \
+ for (i = 0; i < frames; i++) { \
+ for (c = 0; c < channels; c++) { \
+ SecondOrderHistory ## TYPE *history = equ->history; \
+ val = *((TYPE *) data); \
+ cur = 0; \
+ for (f = 0; f < equ->freq_count; f++) { \
+ SecondOrderFilter *filter = &equ->filter[f]; \
+ \
+ cur += one_step_ ## TYPE (filter, history, val); \
+ history++; \
+ } \
+ cur += val * 0.25; \
+ cur = CLAMP (cur, MIN_VAL, MAX_VAL); \
+ *((TYPE *) data) = (TYPE) cur; \
+ data += sizeof (TYPE); \
+ } \
+ } \
}
-CREATE_OPTIMIZED_FUNCTIONS (gint16, gint, -32768, 32767)
- CREATE_OPTIMIZED_FUNCTIONS (gfloat, gfloat, -1.0, 1.0)
+CREATE_OPTIMIZED_FUNCTIONS (gint16, gint, -32768, 32767);
+CREATE_OPTIMIZED_FUNCTIONS (gfloat, gfloat, -1.0, 1.0);
- static void
- gst_iir_equalizer_filter_inplace (GstAudiofilter * filter,
- GstBuffer * buf)
+static void
+gst_iir_equalizer_filter_inplace (GstAudiofilter * filter, GstBuffer * buf)
{
GstIirEqualizer *equ = GST_IIR_EQUALIZER (filter);
@@ -435,6 +434,6 @@ plugin_init (GstPlugin * plugin)
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
GST_VERSION_MINOR,
- "gstequalizer",
+ "equalizer",
"GStreamer equalizers",
plugin_init, VERSION, "LGPL", GST_PACKAGE, GST_ORIGIN)