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authorMichael Niedermayer <michaelni@gmx.at>2013-06-30 11:22:15 +0200
committerMichael Niedermayer <michaelni@gmx.at>2013-06-30 11:23:43 +0200
commitc93a424718c38c6add273745f3792b531332ea88 (patch)
treeab6de6854680c0f8499dcaf4cad0d90c1c470920 /libavutil/lls.c
parentd3bd320e63bfbc96d78a673a01d36f25dc6316e7 (diff)
parent41578f70cf8aec8e7565fba1ca7e07f3dc46c3d2 (diff)
downloadffmpeg-c93a424718c38c6add273745f3792b531332ea88.tar.gz
Merge commit '41578f70cf8aec8e7565fba1ca7e07f3dc46c3d2'
* commit '41578f70cf8aec8e7565fba1ca7e07f3dc46c3d2': lpc: use function pointers, in preparation for asm Merged-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavutil/lls.c')
-rw-r--r--libavutil/lls.c26
1 files changed, 14 insertions, 12 deletions
diff --git a/libavutil/lls.c b/libavutil/lls.c
index 2abfedd552..678285416d 100644
--- a/libavutil/lls.c
+++ b/libavutil/lls.c
@@ -32,13 +32,7 @@
#include "version.h"
#include "lls.h"
-av_cold void avpriv_init_lls(LLSModel *m, int indep_count)
-{
- memset(m, 0, sizeof(LLSModel));
- m->indep_count = indep_count;
-}
-
-void avpriv_update_lls(LLSModel *m, double *var)
+static void update_lls(LLSModel *m, double *var)
{
int i, j;
@@ -106,7 +100,7 @@ void avpriv_solve_lls(LLSModel *m, double threshold, unsigned short min_order)
}
}
-double avpriv_evaluate_lls(LLSModel *m, double *param, int order)
+static double evaluate_lls(LLSModel *m, double *param, int order)
{
int i;
double out = 0;
@@ -117,6 +111,14 @@ double avpriv_evaluate_lls(LLSModel *m, double *param, int order)
return out;
}
+av_cold void avpriv_init_lls(LLSModel *m, int indep_count)
+{
+ memset(m, 0, sizeof(LLSModel));
+ m->indep_count = indep_count;
+ m->update_lls = update_lls;
+ m->evaluate_lls = evaluate_lls;
+}
+
#if FF_API_LLS_PRIVATE
av_cold void av_init_lls(LLSModel *m, int indep_count)
{
@@ -124,7 +126,7 @@ av_cold void av_init_lls(LLSModel *m, int indep_count)
}
void av_update_lls(LLSModel *m, double *param, double decay)
{
- avpriv_update_lls(m, param);
+ m->update_lls(m, param);
}
void av_solve_lls(LLSModel *m, double threshold, int min_order)
{
@@ -132,7 +134,7 @@ void av_solve_lls(LLSModel *m, double threshold, int min_order)
}
double av_evaluate_lls(LLSModel *m, double *param, int order)
{
- return avpriv_evaluate_lls(m, param, order);
+ return m->evaluate_lls(m, param, order);
}
#endif /* FF_API_LLS_PRIVATE */
@@ -159,10 +161,10 @@ int main(void)
var[1] = var[0] + av_lfg_get(&lfg) / (double) UINT_MAX - 0.5;
var[2] = var[1] + av_lfg_get(&lfg) / (double) UINT_MAX - 0.5;
var[3] = var[2] + av_lfg_get(&lfg) / (double) UINT_MAX - 0.5;
- avpriv_update_lls(&m, var);
+ m.update_lls(&m, var);
avpriv_solve_lls(&m, 0.001, 0);
for (order = 0; order < 3; order++) {
- eval = avpriv_evaluate_lls(&m, var + 1, order);
+ eval = m.evaluate_lls(&m, var + 1, order);
printf("real:%9f order:%d pred:%9f var:%f coeffs:%f %9f %9f\n",
var[0], order, eval, sqrt(m.variance[order] / (i + 1)),
m.coeff[order][0], m.coeff[order][1],