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Improved SPW (PCM, sample rate)

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bnnm 2017-01-02 15:24:10 +01:00
parent ee5a40224d
commit 9d33b42584
1 changed files with 74 additions and 38 deletions
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112
src/meta/bgw.c
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@ -2,7 +2,8 @@
#include "../util.h"
#include "../header.h"
/* BGW (FF XI)
/**
* BGW - Final Fantasy XI (PC) music files.
*
* Some info from POLUtils
*/
@ -13,8 +14,7 @@ VGMSTREAM * init_vgmstream_bgw(STREAMFILE *streamFile) {
uint8_t block_align;
off_t start_offset;
int loop_flag = 0;
int channel_count;
int channel_count, loop_flag = 0;
/* check extensions */
if ( !header_check_extensions(streamFile, "bgw") )
@ -52,82 +52,119 @@ VGMSTREAM * init_vgmstream_bgw(STREAMFILE *streamFile) {
/* fill in the vital statistics */
vgmstream->meta_type = meta_FFXI_BGW;
vgmstream->sample_rate = sample_rate;
vgmstream->num_samples = blocksize * block_align;
if (loop_flag) {
vgmstream->loop_start_sample = (loop_start-1) * block_align;
vgmstream->loop_end_sample = vgmstream->num_samples;
}
switch (codec) {
case 0: { /* ADPCM */
case 0: /* PS ADPCM */
vgmstream->coding_type = coding_VAG_ADPCM_cfg;
vgmstream->layout_type = layout_interleave;
vgmstream->interleave_block_size = (block_align / 2) + 1; /* half, even if channels = 1 */
vgmstream->num_samples = blocksize * block_align;
if (loop_flag) {
vgmstream->loop_start_sample = (loop_start-1) * block_align;
vgmstream->loop_end_sample = vgmstream->num_samples;
}
break;
}
case 1: /* PCM */
case 3: /* ATRAC3 (encrypted) */
default:
goto fail;
}
/* open the file for reading */
if ( !header_open_stream(vgmstream, streamFile, start_offset) )
goto fail;
return vgmstream;
/* clean up anything we may have opened */
fail:
close_vgmstream(vgmstream);
return NULL;
}
/* .spw (SEWave, PlayOnline viewer for FFXI), very similar to bgw */
/**
* SPW (SEWave), PlayOnline viewer for Final Fantasy XI (PC)
*/
VGMSTREAM * init_vgmstream_spw(STREAMFILE *streamFile) {
VGMSTREAM * vgmstream = NULL;
uint32_t codec, filesize, blocksize, sample_rate;
int32_t loop_start;
uint8_t block_align;
off_t start_offset;
int loop_flag = 0;
int32_t loop_start;
int channel_count;
int channel_count, loop_flag = 0;
/* check extension, case insensitive */
if ( !header_check_extensions(streamFile, "spw") )
/* check extensions */
if ( !header_check_extensions(streamFile, "spw") )
goto fail;
/* "SeWave" */
if (read_32bitBE(0,streamFile) != 0x53655761 ||
read_32bitBE(4,streamFile) != 0x76650000) goto fail;
/* check header */
if (read_32bitBE(0,streamFile) != 0x53655761 || /* "SeWa" */
read_32bitBE(4,streamFile) != 0x76650000) /* "ve\0\0" */
goto fail;
/* check file size with header value */
if (read_32bitLE(0x8,streamFile) != get_streamfile_size(streamFile))
goto fail;
channel_count = read_8bit(0x2a,streamFile);
filesize = read_32bitLE(0x08,streamFile);
codec = read_32bitLE(0x0c,streamFile);
/*file_id = read_32bitLE(0x10,streamFile);*/
blocksize = read_32bitLE(0x14,streamFile);
loop_start = read_32bitLE(0x18,streamFile);
sample_rate = (read_32bitLE(0x1c,streamFile) + read_32bitLE(0x20,streamFile)) & 0xFFFFFFFF; /* bizarrely obfuscated sample rate */
start_offset = read_32bitLE(0x24,streamFile);
/*0x2c: unk (0x00?) */
/*0x2d: unk (0x00/01?) */
channel_count = read_8bit(0x2a,streamFile);
block_align = read_8bit(0x2b,streamFile);
/*0x2c: unk (0x01 when PCM, 0x10 when VAG?) */
/* check file size with header value */
if (filesize != get_streamfile_size(streamFile))
goto fail;
loop_flag = (loop_start > 0);
/* build the VGMSTREAM */
vgmstream = allocate_vgmstream(channel_count,loop_flag);
if (!vgmstream) goto fail;
/* fill in the vital statistics */
start_offset = read_32bitLE(0x24,streamFile);
vgmstream->channels = channel_count;
vgmstream->sample_rate = 44100;
vgmstream->coding_type = coding_VAG_ADPCM_cfg;
vgmstream->num_samples = read_32bitLE(0x14,streamFile)*16;
if (loop_flag) {
vgmstream->loop_start_sample = (loop_start-1)*16;
vgmstream->loop_end_sample = vgmstream->num_samples;
}
vgmstream->layout_type = layout_interleave;
vgmstream->interleave_block_size = 9;
vgmstream->meta_type = meta_FFXI_SPW;
vgmstream->sample_rate = sample_rate;
switch (codec) {
case 0: /* PS ADPCM */
vgmstream->coding_type = coding_VAG_ADPCM_cfg;
vgmstream->layout_type = layout_interleave;
vgmstream->interleave_block_size = (block_align / 2) + 1; /* half, even if channels = 1 */
vgmstream->num_samples = blocksize * block_align;
if (loop_flag) {
vgmstream->loop_start_sample = (loop_start-1) * block_align;;
vgmstream->loop_end_sample = vgmstream->num_samples;
}
break;
case 1: /* PCM */
vgmstream->coding_type = coding_PCM16LE;
vgmstream->layout_type = layout_interleave;
vgmstream->interleave_block_size = 0x02;
vgmstream->num_samples = blocksize;
if (loop_flag) {
vgmstream->loop_start_sample = (loop_start-1);
vgmstream->loop_end_sample = vgmstream->num_samples;
}
break;
default:
goto fail;
}
/* open the file for reading */
@ -136,8 +173,7 @@ VGMSTREAM * init_vgmstream_spw(STREAMFILE *streamFile) {
return vgmstream;
/* clean up anything we may have opened */
fail:
if (vgmstream) close_vgmstream(vgmstream);
close_vgmstream(vgmstream);
return NULL;
}