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Do some cleanup while we are testing BFSTMs

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This commit is contained in:
bnnm 2017-03-13 21:14:14 +01:00
parent 0c55e49a63
commit de523dc6a3
1 changed files with 15 additions and 38 deletions
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53
src/meta/bcstm.c
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@ -1,30 +1,27 @@
#include "meta.h"
#include "../util.h"
/* BCSTM - Nintendo 3DS format */
VGMSTREAM * init_vgmstream_bcstm(STREAMFILE *streamFile) {
VGMSTREAM * vgmstream = NULL;
char filename[PATH_LIMIT];
coding_t coding_type;
off_t info_offset = 0, seek_offset = 0, data_offset = 0;
uint16_t temp_id;
int codec_number;
int channel_count;
int loop_flag;
int channel_count, loop_flag;
int i, ima = 0;
off_t start_offset;
int section_count;
/* check extension, case insensitive */
streamFile->get_name(streamFile, filename, sizeof(filename));
if (strcasecmp("bcstm", filename_extension(filename)))
if ( !check_extensions(streamFile,"bcstm") )
goto fail;
/* check header */
if ((uint32_t)read_32bitBE(0, streamFile) != 0x4353544D) /* "CSTM" */
goto fail;
if ((uint16_t)read_16bitLE(4, streamFile) != 0xFEFF)
goto fail;
@ -57,11 +54,12 @@ VGMSTREAM * init_vgmstream_bcstm(STREAMFILE *streamFile) {
}
}
if (info_offset == 0) goto fail;
if ((uint32_t)read_32bitBE(info_offset, streamFile) != 0x494E464F) /* "INFO" */
goto fail;
/* check type details */
if (info_offset == 0) goto fail;
codec_number = read_8bit(info_offset + 0x20, streamFile);
loop_flag = read_8bit(info_offset + 0x21, streamFile);
channel_count = read_8bit(info_offset + 0x22, streamFile);
@ -89,13 +87,12 @@ VGMSTREAM * init_vgmstream_bcstm(STREAMFILE *streamFile) {
if (channel_count < 1) goto fail;
/* build the VGMSTREAM */
vgmstream = allocate_vgmstream(channel_count, loop_flag);
if (!vgmstream) goto fail;
/* fill in the vital statistics */
vgmstream->num_samples = read_32bitLE(info_offset + 0x2c, streamFile);
vgmstream->sample_rate = (uint16_t)read_16bitLE(info_offset + 0x24, streamFile);
vgmstream->sample_rate = read_32bitLE(info_offset + 0x24, streamFile);
/* channels and loop flag are set by allocate_vgmstream */
if (ima) //Shift the loop points back slightly to avoid stupid pops in some IMA streams due to DC offsetting
{
@ -166,34 +163,14 @@ VGMSTREAM * init_vgmstream_bcstm(STREAMFILE *streamFile) {
start_offset = data_offset + 0x20;
}
/* open the file for reading by each channel */
{
int i;
for (i = 0; i<channel_count; i++) {
if (vgmstream->layout_type == layout_interleave_shortblock)
vgmstream->ch[i].streamfile = streamFile->open(streamFile, filename,
vgmstream->interleave_block_size);
else if (vgmstream->layout_type == layout_interleave)
vgmstream->ch[i].streamfile = streamFile->open(streamFile, filename,
STREAMFILE_DEFAULT_BUFFER_SIZE);
else
vgmstream->ch[i].streamfile = streamFile->open(streamFile, filename,
0x1000);
/* open the file for reading by each channel */
if (!vgmstream_open_stream(vgmstream,streamFile,start_offset))
goto fail;
if (!vgmstream->ch[i].streamfile) goto fail;
return vgmstream;
vgmstream->ch[i].channel_start_offset =
vgmstream->ch[i].offset =
start_offset + i*vgmstream->interleave_block_size;
}
}
return vgmstream;
/* clean up anything we may have opened */
fail:
if (vgmstream) close_vgmstream(vgmstream);
return NULL;
close_vgmstream(vgmstream);
return NULL;
}