From dd61978070a769b7bf6baee630be27f9f04bffc5 Mon Sep 17 00:00:00 2001 From: Michael Giacomelli Date: Sun, 20 May 2012 02:31:24 -0400 Subject: Expand the range of the inverse quant table in WMA Pro. Several of the problem samples on the tracker use values outside this range. Trying the larger table doesn't quite seem to fix things, but its only a small amount of additional memory and looking at ffmpeg, I think the larger table is correct. Change-Id: Id046e62b68550701aa1f80c9abd0a1dcd711bd0d --- lib/rbcodec/codecs/libwmapro/quant.h | 19 ++++++++++++++++--- 1 file changed, 16 insertions(+), 3 deletions(-) mode change 100644 => 100755 lib/rbcodec/codecs/libwmapro/quant.h (limited to 'lib/rbcodec/codecs/libwmapro/quant.h') diff --git a/lib/rbcodec/codecs/libwmapro/quant.h b/lib/rbcodec/codecs/libwmapro/quant.h old mode 100644 new mode 100755 index 3500615fde..8ec74597f4 --- a/lib/rbcodec/codecs/libwmapro/quant.h +++ b/lib/rbcodec/codecs/libwmapro/quant.h @@ -8,8 +8,21 @@ * floating point value is : * quant = pow(10.0, exp/20) * 'exp' is an integer value which I have exmerimentally found to fall in the - * range (50,170). */ -const int32_t quant_tab[121] = { + * range (0,170). */ +const int32_t quant_tab[171] = { + 0x00000001, 0x00000001, + 0x00000001, 0x00000001, 0x00000002, 0x00000002, + 0x00000002, 0x00000002, 0x00000003, 0x00000003, + 0x00000003, 0x00000004, 0x00000004, 0x00000004, + 0x00000005, 0x00000006, 0x00000006, 0x00000007, + 0x00000008, 0x00000009, 0x0000000a, 0x0000000b, + 0x0000000d, 0x0000000e, 0x00000010, 0x00000012, + 0x00000014, 0x00000016, 0x00000019, 0x0000001c, + 0x00000020, 0x00000023, 0x00000028, 0x0000002d, + 0x00000032, 0x00000038, 0x0000003f, 0x00000047, + 0x0000004f, 0x00000059, 0x00000064, 0x00000070, + 0x0000007e, 0x0000008d, 0x0000009e, 0x000000b2, + 0x000000c8, 0x000000e0, 0x000000fb, 0x0000011a, 0x0000013C, 0x00000163, 0x0000018E, 0x000001BF, 0x000001F5, 0x00000232, 0x00000277, 0x000002C4, 0x0000031A, 0x0000037B, 0x000003E8, 0x00000462, @@ -43,7 +56,7 @@ const int32_t quant_tab[121] = { 0x12D940B6 }; -#define EXP_MIN 50 +#define EXP_MIN 0 #define EXP_MAX 170 /* return the correct value of quant based on exp */ -- cgit v1.2.3