aac: move the TNS tables from aacdectab to the shared aactab
authorRostislav Pehlivanov <atomnuker@gmail.com>
Sat, 29 Aug 2015 05:07:12 +0000 (06:07 +0100)
committerRostislav Pehlivanov <atomnuker@gmail.com>
Sat, 29 Aug 2015 05:07:12 +0000 (06:07 +0100)
This commit simply moves the TNS tables to a more appropriate
aactab.h since then they can be accessed by both the decoder
and encoder.

The encoder _shouldn't_ normally need the tables since the
specs describe a specific quantization process, but the exact
reason for this can be seen in the TNS commit following.

Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>
libavcodec/aacdectab.h
libavcodec/aactab.h

index 62c7f87..5c89a93 100644 (file)
@@ -43,41 +43,6 @@ static const INTFLOAT ltp_coef[8] = {
     Q30(0.984900f), Q30(1.067894f), Q30(1.194601f), Q30(1.369533f),
 };
 
-/* @name tns_tmp2_map
- * Tables of the tmp2[] arrays of LPC coefficients used for TNS.
- * The suffix _M_N[] indicate the values of coef_compress and coef_res
- * respectively.
- * @{
- */
-static const INTFLOAT tns_tmp2_map_1_3[4] = {
-     Q31(0.00000000f), Q31(-0.43388373f),  Q31(0.64278758f),  Q31(0.34202015f),
-};
-
-static const INTFLOAT tns_tmp2_map_0_3[8] = {
-     Q31(0.00000000f), Q31(-0.43388373f), Q31(-0.78183150f), Q31(-0.97492790f),
-     Q31(0.98480773f), Q31( 0.86602539f), Q31( 0.64278758f), Q31( 0.34202015f),
-};
-
-static const INTFLOAT tns_tmp2_map_1_4[8] = {
-     Q31(0.00000000f), Q31(-0.20791170f), Q31(-0.40673664f), Q31(-0.58778524f),
-     Q31(0.67369562f), Q31( 0.52643216f), Q31( 0.36124167f), Q31( 0.18374951f),
-};
-
-static const INTFLOAT tns_tmp2_map_0_4[16] = {
-    Q31( 0.00000000f), Q31(-0.20791170f), Q31(-0.40673664f), Q31(-0.58778524f),
-    Q31(-0.74314481f), Q31(-0.86602539f), Q31(-0.95105654f), Q31(-0.99452192f),
-    Q31( 0.99573416f), Q31( 0.96182561f), Q31( 0.89516330f), Q31( 0.79801720f),
-    Q31( 0.67369562f), Q31( 0.52643216f), Q31( 0.36124167f), Q31( 0.18374951f),
-};
-
-static const INTFLOAT * const tns_tmp2_map[4] = {
-    tns_tmp2_map_0_3,
-    tns_tmp2_map_0_4,
-    tns_tmp2_map_1_3,
-    tns_tmp2_map_1_4
-};
-// @}
-
 static const int8_t tags_per_config[16] = { 0, 1, 1, 2, 3, 3, 4, 5, 0, 0, 0, 4, 5, 0, 5, 0 };
 
 static const uint8_t aac_channel_layout_map[16][5][3] = {
index c115b05..9f33380 100644 (file)
  * encoder.
  */
 
+/* @name tns_tmp2_map
+ * Tables of the tmp2[] arrays of LPC coefficients used for TNS.
+ * The suffix _M_N[] indicate the values of coef_compress and coef_res
+ * respectively.
+ * @{
+ */
+static const INTFLOAT tns_tmp2_map_1_3[4] = {
+    Q31(0.00000000f), Q31(-0.43388373f),  Q31(0.64278758f),  Q31(0.34202015f),
+};
+
+static const INTFLOAT tns_tmp2_map_0_3[8] = {
+    Q31(0.00000000f), Q31(-0.43388373f), Q31(-0.78183150f), Q31(-0.97492790f),
+    Q31(0.98480773f), Q31( 0.86602539f), Q31( 0.64278758f), Q31( 0.34202015f),
+};
+
+static const INTFLOAT tns_tmp2_map_1_4[8] = {
+    Q31(0.00000000f), Q31(-0.20791170f), Q31(-0.40673664f), Q31(-0.58778524f),
+    Q31(0.67369562f), Q31( 0.52643216f), Q31( 0.36124167f), Q31( 0.18374951f),
+};
+
+static const INTFLOAT tns_tmp2_map_0_4[16] = {
+    Q31( 0.00000000f), Q31(-0.20791170f), Q31(-0.40673664f), Q31(-0.58778524f),
+    Q31(-0.74314481f), Q31(-0.86602539f), Q31(-0.95105654f), Q31(-0.99452192f),
+    Q31( 0.99573416f), Q31( 0.96182561f), Q31( 0.89516330f), Q31( 0.79801720f),
+    Q31( 0.67369562f), Q31( 0.52643216f), Q31( 0.36124167f), Q31( 0.18374951f),
+};
+
+static const INTFLOAT * const tns_tmp2_map[4] = {
+    tns_tmp2_map_0_3,
+    tns_tmp2_map_0_4,
+    tns_tmp2_map_1_3,
+    tns_tmp2_map_1_4
+};
+// @}
+
 /* @name window coefficients
  * @{
  */