mirror/btstack
1
0
Fork 0
mirror of https://github.com/bluekitchen/btstack.git synced 2025-03-28 19:20:54 +00:00
Code Issues Packages Projects Releases Wiki Activity

src/classic/btstack_sbc_plc.c: add padding to zero frame to avoid out-of-bound reads

Browse Source
This commit is contained in:
Matthias Ringwald 2021-04-15 15:05:05 +02:00
parent c77991ca33
commit a2c7346fc6
1 changed files with 12 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
src/classic/btstack_sbc_plc.c
View File

@ -55,18 +55,24 @@
#define SAMPLE_FORMAT int16_t
static uint8_t indices0[] = { 0xad, 0x00, 0x00, 0xc5, 0x00, 0x00, 0x00, 0x00, 0x77, 0x6d,
0xb6, 0xdd, 0xdb, 0x6d, 0xb7, 0x76, 0xdb, 0x6d, 0xdd, 0xb6, 0xdb, 0x77, 0x6d,
0xb6, 0xdd, 0xdb, 0x6d, 0xb7, 0x76, 0xdb, 0x6d, 0xdd, 0xb6, 0xdb, 0x77, 0x6d,
0xb6, 0xdd, 0xdb, 0x6d, 0xb7, 0x76, 0xdb, 0x6d, 0xdd, 0xb6, 0xdb, 0x77, 0x6d,
0xb6, 0xdd, 0xdb, 0x6d, 0xb7, 0x76, 0xdb, 0x6c};
// Zero Frame (57 bytes) with padding zeros to avoid out of bound reads
static uint8_t indices0[] = {
0xad, 0x00, 0x00, 0xc5, 0x00, 0x00, 0x00, 0x00, 0x77, 0x6d,
0xb6, 0xdd, 0xdb, 0x6d, 0xb7, 0x76, 0xdb, 0x6d, 0xdd, 0xb6,
0xdb, 0x77, 0x6d, 0xb6, 0xdd, 0xdb, 0x6d, 0xb7, 0x76, 0xdb,
0x6d, 0xdd, 0xb6, 0xdb, 0x77, 0x6d, 0xb6, 0xdd, 0xdb, 0x6d,
0xb7, 0x76, 0xdb, 0x6d, 0xdd, 0xb6, 0xdb, 0x77, 0x6d, 0xb6,
0xdd, 0xdb, 0x6d, 0xb7, 0x76, 0xdb, 0x6c,
/* padding */ 0x00, 0x00, 0x00
};
/* Raised COSine table for OLA */
static float rcos[SBC_OLAL] = {
0.99148655f,0.96623611f,0.92510857f,0.86950446f,
0.80131732f,0.72286918f,0.63683150f,0.54613418f,
0.45386582f,0.36316850f,0.27713082f,0.19868268f,
0.13049554f,0.07489143f,0.03376389f,0.00851345f};
0.13049554f,0.07489143f,0.03376389f,0.00851345f
};
// taken from http://www.codeproject.com/Articles/69941/Best-Square-Root-Method-Algorithm-Function-Precisi
// Algorithm: Babylonian Method + some manipulations on IEEE 32 bit floating point representation