Adding new audio output filter layer libaf

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@7569 b3059339-0415-0410-9bf9-f77b7e298cf2

1 files changed, 60 insertions, 0 deletions

diff --git a/libaf/af_dummy.c b/libaf/af_dummy.c
new file mode 100644
index 0000000000..8435b4a626
--- /dev/null
+++ b/libaf/af_dummy.c
@@ -0,0 +1,60 @@
+/* The name speaks for itself this filter is a dummy and will not blow
+   up regardless of what you do with it. */
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "../config.h"
+#include "../mp_msg.h"
+
+#include "af.h"
+
+// Initialization and runtime control
+static int control(struct af_instance_s* af, int cmd, void* arg)
+{
+  switch(cmd){
+  case AF_CONTROL_REINIT:
+    memcpy(af->data,(af_data_t*)arg,sizeof(af_data_t));
+    mp_msg(MSGT_AFILTER,MSGL_V,"[dummy] Was reinitialized, rate=%iHz, nch = %i, format = 0x%08X and bps = %i\n",af->data->rate,af->data->nch,af->data->format,af->data->bps);
+    return AF_OK;
+  }
+  return AF_UNKNOWN;
+}
+
+// Deallocate memory 
+static void uninit(struct af_instance_s* af)
+{
+  if(af->data)
+    free(af->data);
+}
+
+// Filter data through filter
+static af_data_t* play(struct af_instance_s* af, af_data_t* data)
+{
+  // Do something necessary to get rid of annoying warning during compile
+  if(!af)
+    printf("EEEK: Argument af == NULL in af_dummy.c play().");
+  return data;
+}
+
+// Allocate memory and set function pointers
+static int open(af_instance_t* af){
+  af->control=control;
+  af->uninit=uninit;
+  af->play=play;
+  af->mul.d=1;
+  af->mul.n=1;
+  af->data=malloc(sizeof(af_data_t));
+  if(af->data == NULL)
+    return AF_ERROR;
+  return AF_OK;
+}
+
+// Description of this filter
+af_info_t af_info_dummy = {
+    "dummy",
+    "dummy",
+    "Anders",
+    "",
+    open
+};