lpc: Add a function for calculating reflection coefficients from samples

[ffmpeg] / libavfilter / vsrc_nullsrc.c

diff --git a/libavfilter/vsrc_nullsrc.c b/libavfilter/vsrc_nullsrc.c
index d145b0b277f3d5a78cc398ba6813e31bf8f36073..79f6d4ba99520565beba9b4d807449f632db8ef9 100644 (file)
--- a/libavfilter/vsrc_nullsrc.c
+++ b/libavfilter/vsrc_nullsrc.c
@@ -21,12 +21,16 @@
  * null video source
  */
 
+#include <stdio.h>
+
 #include "libavutil/avstring.h"
 #include "libavutil/eval.h"
+#include "libavutil/internal.h"
 #include "libavutil/mathematics.h"
 #include "libavutil/parseutils.h"
 #include "avfilter.h"
 #include "formats.h"
+#include "internal.h"
 
 static const char *const var_names[] = {
     "E",
@@ -50,7 +54,7 @@ typedef struct {
     double var_values[VAR_VARS_NB];
 } NullContext;
 
-static int init(AVFilterContext *ctx, const char *args, void *opaque)
+static int init(AVFilterContext *ctx, const char *args)
 {
     NullContext *priv = ctx->priv;
 
@@ -99,7 +103,7 @@ static int config_props(AVFilterLink *outlink)
     outlink->h = priv->h;
     outlink->time_base = tb;
 
-    av_log(outlink->src, AV_LOG_INFO, "w:%d h:%d tb:%d/%d\n", priv->w, priv->h,
+    av_log(outlink->src, AV_LOG_VERBOSE, "w:%d h:%d tb:%d/%d\n", priv->w, priv->h,
            tb.num, tb.den);
 
     return 0;
@@ -110,6 +114,16 @@ static int request_frame(AVFilterLink *link)
     return -1;
 }
 
+static const AVFilterPad avfilter_vsrc_nullsrc_outputs[] = {
+    {
+        .name          = "default",
+        .type          = AVMEDIA_TYPE_VIDEO,
+        .config_props  = config_props,
+        .request_frame = request_frame,
+    },
+    { NULL }
+};
+
 AVFilter avfilter_vsrc_nullsrc = {
     .name        = "nullsrc",
     .description = NULL_IF_CONFIG_SMALL("Null video source, never return images."),
@@ -117,15 +131,7 @@ AVFilter avfilter_vsrc_nullsrc = {
     .init       = init,
     .priv_size = sizeof(NullContext),
 
-    .inputs    = (AVFilterPad[]) {{ .name = NULL}},
+    .inputs    = NULL,
 
-    .outputs   = (AVFilterPad[]) {
-        {
-            .name            = "default",
-            .type            = AVMEDIA_TYPE_VIDEO,
-            .config_props    = config_props,
-            .request_frame   = request_frame,
-        },
-        { .name = NULL}
-    },
+    .outputs   = avfilter_vsrc_nullsrc_outputs,
 };