Re-add the list of parameters for the unsharp filter, I somehow lost

[ffmpeg] / libavcodec / qcelpdata.h

diff --git a/libavcodec/qcelpdata.h b/libavcodec/qcelpdata.h
index 11eb1d100b0b93458bb511da21e5e9709d4e8aff..d79cea9f6ccee97303663fd42370177a8059cfca 100644 (file)
--- a/libavcodec/qcelpdata.h
+++ b/libavcodec/qcelpdata.h
@@ -23,10 +23,11 @@
 #define AVCODEC_QCELPDATA_H
 
 /**
- * @file qcelpdata.h
+ * @file
  * Data tables for the QCELP decoder
  * @author Reynaldo H. Verdejo Pinochet
  * @remark FFmpeg merging spearheaded by Kenan Gillet
+ * @remark Development mentored by Benjamin Larson
  */
 
 #include <stddef.h>
@@ -423,16 +424,6 @@ static const qcelp_vector * const qcelp_lspvq[5] = {
  */
 #define QCELP_SCALE 8192.
 
-/**
- * the upper boundary of the clipping, depends on QCELP_SCALE
- */
-#define QCELP_CLIP_UPPER_BOUND (8191.75/8192.)
-
-/**
- * the lower boundary of the clipping, depends on QCELP_SCALE
- */
-#define QCELP_CLIP_LOWER_BOUND -1.
-
 /**
  * table for computing Ga (decoded linear codebook gain magnitude)
  *
@@ -549,4 +540,13 @@ static const double qcelp_rnd_fir_coefs[11] = {
  */
 #define QCELP_LSP_OCTAVE_PREDICTOR 29.0/32
 
+/**
+ * initial coefficient to perform bandwidth expansion on LPC
+ *
+ * @note: 0.9883 looks like an approximation of 253/256.
+ *
+ * TIA/EIA/IS-733 2.4.3.3.6 6
+ */
+#define QCELP_BANDWIDTH_EXPANSION_COEFF 0.9883
+
 #endif /* AVCODEC_QCELPDATA_H */