Cool_Tools/vgmstream
1
0
Fork 0
mirror of https://github.com/vgmstream/vgmstream.git synced 2025-01-29 19:37:30 +01:00
Code Issues Packages Projects Releases Wiki Activity

comments

Browse Source
This commit is contained in:
bnnm 2017-08-05 17:59:35 +02:00
parent efdcd16ac1
commit 90aef437ea
1 changed files with 4 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
src/coding/ea_decoder.c
View File

@ -1,7 +1,8 @@
#include "coding.h"
#include "../util.h"
/* Various EA ADPCM codecs evolved from CDXA */
/* AKA "EA ADPCM", evolved from CDXA. Inconsistently called EA XA/EA-XA/EAXA.
* Some variations contain ADPCM hist header per block, but it's handled in ea_block.c */
/*
* Another way to get coefs in EAXA v2, with no diffs (no idea which table is actually used in games):
@ -28,7 +29,7 @@ static const int EA_XA_TABLE[20] = {
0, -1, -3, -4
};
/* EA XA v2 (inconsistently called EAXA or EA-XA too); like ea_xa_int but with "PCM samples" flag and doesn't add 128 on nibble expand */
/* EA XA v2; like ea_xa_int but with "PCM samples" flag and doesn't add 128 on expand or clamp (pre-adjusted by the encoder?) */
void decode_ea_xa_v2(VGMSTREAMCHANNEL * stream, sample * outbuf, int channelspacing, int32_t first_sample, int32_t samples_to_do,int channel) {
uint8_t frame_info;
int32_t sample_count;
@ -84,7 +85,7 @@ void decode_ea_xa_v2(VGMSTREAMCHANNEL * stream, sample * outbuf, int channelspac
}
}
/* EA XA v1 stereo (aka "EA ADPCM") */
/* EA XA v1 stereo */
void decode_ea_xa(VGMSTREAMCHANNEL * stream, sample * outbuf, int channelspacing, int32_t first_sample, int32_t samples_to_do,int channel) {
uint8_t frame_info;
int32_t coef1, coef2;