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Fix some .MSA

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This commit is contained in:
bnnm 2018-04-19 22:20:18 +02:00
parent d6ade4123f
commit 271626921a
1 changed files with 18 additions and 19 deletions
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37
src/meta/ps2_msa.c
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@ -1,47 +1,46 @@
#include "meta.h"
#include "../util.h"
#include "../coding/coding.h"
/* MSA (from Psyvariar -Complete Edition-) */
/* MSA - from Psyvariar -Complete Edition- (PS2) */
VGMSTREAM * init_vgmstream_ps2_msa(STREAMFILE *streamFile) {
VGMSTREAM * vgmstream = NULL;
off_t start_offset, datasize, filesize;
off_t start_offset, data_size, file_size;
int loop_flag, channel_count;
/* check extension, case insensitive */
if (!check_extensions(streamFile, "msa")) goto fail;
/* check header */
/* checks */
if (!check_extensions(streamFile, "msa"))
goto fail;
if (read_32bitBE(0x00,streamFile) != 0x00000000)
goto fail;
loop_flag = 0;
channel_count = 2;
start_offset = 0x14;
data_size = read_32bitLE(0x4,streamFile);
file_size = get_streamfile_size(streamFile);
/* build the VGMSTREAM */
vgmstream = allocate_vgmstream(channel_count,loop_flag);
if (!vgmstream) goto fail;
start_offset = 0x14;
datasize = read_32bitLE(0x4,streamFile);
filesize = get_streamfile_size(streamFile);
vgmstream->channels = channel_count;
vgmstream->sample_rate = read_32bitLE(0x10,streamFile);
vgmstream->num_samples = datasize*28/(16*channel_count);
if (vgmstream->sample_rate == 0) /* ex. AME.MSA */
vgmstream->sample_rate = 44100;
vgmstream->num_samples = ps_bytes_to_samples(data_size, channel_count);//data_size*28/(0x10*channel_count);
vgmstream->coding_type = coding_PSX;
vgmstream->layout_type = layout_interleave;
vgmstream->interleave_block_size = 0x4000;
vgmstream->meta_type = meta_PS2_MSA;
/* MSAs are strangely truncated, so manually calculate samples
* data after last usable block is always silence or garbage */
if (datasize > filesize) {
off_t usable_size = filesize - start_offset;
/* MSAs are strangely truncated, so manually calculate samples.
* Data after last usable block is always silence or garbage. */
if (data_size > file_size) {
off_t usable_size = file_size - start_offset;
usable_size -= usable_size % (vgmstream->interleave_block_size*channel_count);/* block-aligned */
vgmstream->num_samples = usable_size * 28 / (16*channel_count);
vgmstream->num_samples = ps_bytes_to_samples(usable_size, channel_count);//usable_size * 28 / (16*channel_count);
}
/* open the file for reading */
if (!vgmstream_open_stream(vgmstream, streamFile, start_offset))
goto fail;
return vgmstream;