Cool_Tools/vgmstream
1
0
Fork 0
mirror of https://github.com/vgmstream/vgmstream.git synced 2024-11-28 08:20:54 +01:00
Code Issues Packages Projects Releases Wiki Activity

Merge pull request #372 from bxaimc/master

Browse Source 
KTSS/KNS Opus
This commit is contained in:
Christopher Snowhill 2019-03-22 21:24:52 -07:00 committed by GitHub
commit 3e556458ad
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 52 additions and 30 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

82
src/meta/ktss.c
View File

@ -4,10 +4,10 @@
VGMSTREAM * init_vgmstream_ktss(STREAMFILE *streamFile) {
VGMSTREAM * vgmstream = NULL;
int loop_flag, channel_count;
int8_t version;
int8_t version, num_layers, codec_id;
int32_t loop_length, coef_start_offset, coef_spacing;
off_t start_offset;
int8_t channelMultiplier;
size_t data_size, skip = 0;
if (!check_extensions(streamFile, "kns,ktss"))
goto fail;
@ -15,30 +15,18 @@ VGMSTREAM * init_vgmstream_ktss(STREAMFILE *streamFile) {
if (read_32bitBE(0, streamFile) != 0x4B545353) /* "KTSS" */
goto fail;
/* check type details */
version = read_8bit(0x22, streamFile);
if (version == 1) {
coef_start_offset = 0x40;
coef_spacing = 0x2e;
}
else if (version == 3) { // Fire Emblem Warriors (Switch)
coef_start_offset = 0x5c;
coef_spacing = 0x60;
}
else
goto fail;
codec_id = read_8bit(0x20, streamFile);
loop_length = read_32bitLE(0x38, streamFile);
loop_flag = loop_length > 0;
// For unknown reasons, a channel multiplier is necessary in Hyrule Warriors (Switch)
// It seems to be present in other Koei Tecmo KNS but the channel count was always
// explicitly defined in the 0x29 byte. Here, 10 channel files have '2' in 0x29*
// and '5' in 0x28 whereas previous titles usually contained '1'
// This is super meh on KT's part but whatever
channelMultiplier = read_8bit(0x28, streamFile);
// A layered stream/track model seems to be used in Hyrule Warriors (Switch).
// It's also present in other Koei Tecmo KNS but the channel count was always
// explicitly defined in the 0x29 byte and the number of layers was set to 1.
// Here, 10 channel files are set up with 2 channels in 5 layers.
// Super hacky on KT's part and ours to implement but it works.
num_layers = read_8bit(0x28, streamFile);
channel_count = read_8bit(0x29, streamFile) * channelMultiplier;
channel_count = read_8bit(0x29, streamFile) * num_layers;
/* build the VGMSTREAM */
vgmstream = allocate_vgmstream(channel_count, loop_flag);
@ -46,19 +34,53 @@ VGMSTREAM * init_vgmstream_ktss(STREAMFILE *streamFile) {
/* fill in the vital statistics */
vgmstream->num_samples = read_32bitLE(0x30, streamFile);
vgmstream->sample_rate = (uint16_t)read_16bitLE(0x2c, streamFile);
vgmstream->sample_rate = read_32bitLE(0x2c, streamFile);
vgmstream->loop_start_sample = read_32bitLE(0x34, streamFile);
vgmstream->loop_end_sample = vgmstream->loop_start_sample + loop_length;
vgmstream->coding_type = coding_NGC_DSP;
vgmstream->layout_type = layout_interleave;
vgmstream->meta_type = meta_KTSS;
vgmstream->interleave_block_size = 0x8;
dsp_read_coefs_le(vgmstream, streamFile, coef_start_offset, coef_spacing);
start_offset = read_32bitLE(0x24, streamFile) + 0x20;
switch (codec_id) {
case 0x2: /* DSP ADPCM - Hyrule Warriors, Fire Emblem Warriors, and other Koei Tecmo games */
/* check type details */
version = read_8bit(0x22, streamFile);
if (version == 1) {
coef_start_offset = 0x40;
coef_spacing = 0x2e;
}
else if (version == 3) { // Fire Emblem Warriors (Switch)
coef_start_offset = 0x5c;
coef_spacing = 0x60;
}
else
goto fail;
vgmstream->coding_type = coding_NGC_DSP;
vgmstream->layout_type = layout_interleave;
vgmstream->interleave_block_size = 0x8;
dsp_read_coefs_le(vgmstream, streamFile, coef_start_offset, coef_spacing);
break;
#ifdef VGM_USE_FFMPEG
case 0x9: /* Opus - Dead or Alive Xtreme 3: Scarlet */
data_size = read_32bitLE(0x44, streamFile);
{
vgmstream->codec_data = init_ffmpeg_switch_opus(streamFile, start_offset, data_size, vgmstream->channels, skip, vgmstream->sample_rate);
if (!vgmstream->codec_data) goto fail;
vgmstream->coding_type = coding_FFmpeg;
vgmstream->layout_type = layout_none;
if (vgmstream->num_samples == 0) {
vgmstream->num_samples = switch_opus_get_samples(start_offset, data_size, streamFile) - skip;
}
}
break;
default:
goto fail;
#endif
}
if (!vgmstream_open_stream(vgmstream, streamFile, start_offset))
goto fail;
return vgmstream;