FS#10199: Adds limiter DSP function

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@22394 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 24 insertions, 0 deletions

diff --git a/apps/pcmbuf.c b/apps/pcmbuf.c
index 319e3e8044..66a4ed4128 100644
--- a/apps/pcmbuf.c
+++ b/apps/pcmbuf.c
@@ -1170,6 +1170,30 @@ bool pcmbuf_is_crossfade_enabled(void)
  *  Commit any remaining samples in the PCM buffer for playback. */
 void pcmbuf_play_remainder(void)
 {
+    pcmbuf_flush_limiter_buffer();
+    
     if (audiobuffer_fillpos)
         pcmbuf_flush_fillpos();
 }
+
+/** FLUSH LIMITER BUFFER
+ *  Empty the limiter buffer and commit its contents
+ *  to the PCM buffer for playback. */
+void pcmbuf_flush_limiter_buffer(void)
+{
+    char *dest;
+    int out_count = LIMITER_BUFFER_SIZE;
+    
+    /* create room at the end of the PCM buffer for any
+       samples that may be held back in the limiter buffer */
+    while ((dest = pcmbuf_request_buffer(&out_count)) == NULL)
+    {
+        cancel_cpu_boost();
+        sleep(1);
+    }
+
+    /* flush the limiter buffer into the PCM buffer */
+    out_count = dsp_flush_limiter_buffer(dest);
+    if (out_count > 0)
+        pcmbuf_write_complete(out_count);
+}