basic type mechanism working

1 files changed, 10 insertions, 2 deletions

diff --git a/ffmpeg/libavdevice/timefilter.c b/ffmpeg/libavdevice/timefilter.c
index ba2e54e..9d38f93 100644
--- a/ffmpeg/libavdevice/timefilter.c
+++ b/ffmpeg/libavdevice/timefilter.c
@@ -49,6 +49,10 @@ TimeFilter *ff_timefilter_new(double time_base,
 {
     TimeFilter *self       = av_mallocz(sizeof(TimeFilter));
     double o               = 2 * M_PI * bandwidth * period * time_base;
+
+    if (!self)
+        return NULL;
+
     self->clock_period     = time_base;
     self->feedback2_factor = qexpneg(M_SQRT2 * o);
     self->feedback3_factor = qexpneg(o * o) / period;
@@ -101,7 +105,7 @@ int main(void)
     for (n0 = 0; n0 < 40; n0 = 2 * n0 + 1) {
         for (n1 = 0; n1 < 10; n1 = 2 * n1 + 1) {
             double best_error = 1000000000;
-            double bestpar0   = 1;
+            double bestpar0   = n0 ? 1 : 100000;
             double bestpar1   = 1;
             int better, i;
 
@@ -121,6 +125,10 @@ int main(void)
                     for (par1 = bestpar1 * 0.8; par1 <= bestpar1 * 1.21; par1 += bestpar1 * 0.05) {
                         double error   = 0;
                         TimeFilter *tf = ff_timefilter_new(1, par0, par1);
+                        if (!tf) {
+                            printf("Could not allocate memory for timefilter.\n");
+                            exit(1);
+                        }
                         for (i = 0; i < SAMPLES; i++) {
                             double filtered;
                             filtered = ff_timefilter_update(tf, samples[i], i ? (samplet[i] - samplet[i-1]) : 1);
@@ -150,7 +158,7 @@ int main(void)
             }
             ff_timefilter_destroy(tf);
 #else
-            printf(" [%f %f %9f]", bestpar0, bestpar1, best_error);
+            printf(" [%12f %11f %9f]", bestpar0, bestpar1, best_error);
 #endif
         }
         printf("\n");