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Fixed MTAF decoder for features that had yet to be discovered.

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This commit is contained in:
Christopher Snowhill 2016-08-24 17:36:17 -07:00
parent 9c9f8952d3
commit 327a45c194
1 changed files with 14 additions and 6 deletions
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20
Frameworks/vgmstream/vgmstream/src/coding/mtaf_decoder.c
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@ -81,15 +81,14 @@ static int16_t step_size[32][16] = {
void decode_mtaf(VGMSTREAMCHANNEL * stream, sample * outbuf, int channelspacing, int32_t first_sample, int32_t samples_to_do, int channel, int channels) { void decode_mtaf(VGMSTREAMCHANNEL * stream, sample * outbuf, int channelspacing, int32_t first_sample, int32_t samples_to_do, int channel, int channels) {
int32_t sample_count; int32_t sample_count;
int framesin = first_sample / 0x100; unsigned long cur_off = stream->offset;
unsigned long cur_off = stream->offset + framesin*(0x10+0x80*2)*(channels/2);
int i; int i;
int c = channel%2; int c = channel%2;
int16_t init_idx = read_16bitLE(cur_off+4+c*2, stream->streamfile); int16_t init_idx;
int16_t init_hist = read_16bitLE(cur_off+8+c*4, stream->streamfile); int16_t init_hist;
int32_t hist = stream->adpcm_history1_16; int32_t hist = stream->adpcm_history1_16;
int step_idx = stream->adpcm_step_index; int step_idx = stream->adpcm_step_index;
//printf("channel %d: first_sample = %d, stream->offset = 0x%lx, cur_off = 0x%lx init_idx = %d\n", channel, first_sample, (unsigned long)stream->offset, cur_off, init_idx); //printf("channel %d: first_sample = %d, stream->offset = 0x%lx, cur_off = 0x%lx init_idx = %d\n", channel, first_sample, (unsigned long)stream->offset, cur_off, init_idx);
#if 0 #if 0
@ -104,8 +103,17 @@ void decode_mtaf(VGMSTREAMCHANNEL * stream, sample * outbuf, int channelspacing,
#endif #endif
first_sample = first_sample%0x100; first_sample = first_sample%0x100;
if (first_sample%0x100 == 0) { if (first_sample%0x100 == 0) {
while (read_8bit(cur_off, stream->streamfile) != 0) {
cur_off += 16;
}
stream->offset = cur_off;
init_idx = read_16bitLE(cur_off+4+c*2, stream->streamfile);
init_hist = read_16bitLE(cur_off+8+c*4, stream->streamfile);
hist = init_hist; hist = init_hist;
#if 0 #if 0