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Fix some .his

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bnnm 2019-07-28 14:47:23 +02:00
parent 1fb124c2b0
commit 5dd4569a39
1 changed files with 74 additions and 87 deletions
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161
src/meta/his.c
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@ -1,112 +1,99 @@
#include "meta.h"
#include "../util.h"
#include "../coding/coding.h"
/* Her Interactive Sound .his (Nancy Drew) */
/* A somewhat transformed RIFF WAVE */
/* HIS - Her Interactive games [Nancy Drew series (PC)] */
VGMSTREAM * init_vgmstream_his(STREAMFILE *streamFile) {
VGMSTREAM * vgmstream = NULL;
char filename[PATH_LIMIT];
int channel_count;
int loop_flag = 0;
int bps = 0;
int channel_count, loop_flag = 0, bps, sample_rate, num_samples, version;
off_t start_offset;
const uint8_t header_magic_expected[0x16] = "Her Interactive Sound\x1a";
uint8_t header_magic[0x16];
/* check extension, case insensitive */
streamFile->get_name(streamFile,filename,sizeof(filename));
if (strcasecmp("his",filename_extension(filename))) goto fail;
/* check header magic */
if (0x16 != streamFile->read(streamFile, header_magic, 0, 0x16)) goto fail;
if (memcmp(header_magic_expected, header_magic, 0x16)) goto fail;
/* checks */
if (!check_extensions(streamFile, "his"))
goto fail;
/* data chunk label */
if (0x64617461 != read_32bitBE(0x24,streamFile)) goto fail;
if (read_32bitBE(0x00,streamFile) == 0x48657220) { /* "Her Interactive Sound\x1a" */
/* Nancy Drew: Secrets Can Kill (PC) */
version = 0;
channel_count = read_16bitLE(0x16,streamFile);
sample_rate = read_32bitLE(0x18,streamFile);
/* 0x1c: bitrate */
/* 0x20: block size */
bps = read_16bitLE(0x22,streamFile);
start_offset = 0x2c;
if (read_32bitBE(0x24,streamFile) != 0x64617461) /* "data" */
goto fail;
num_samples = pcm_bytes_to_samples(read_32bitLE(0x28,streamFile), channel_count, bps);
channel_count = read_16bitLE(0x16,streamFile);
start_offset = 0x2c;
}
else if (read_32bitBE(0x00,streamFile) == 0x48495300) { /* HIS\0 */
/* most(?) others */
version = read_32bitLE(0x04,streamFile);
/* 0x08: codec */
channel_count = read_16bitLE(0x0a,streamFile);
sample_rate = read_32bitLE(0x0c,streamFile);
/* 0x10: bitrate */
/* 0x14: block size */
bps = read_16bitLE(0x16,streamFile);
/* 8-bit or 16-bit expected */
switch (read_16bitLE(0x22,streamFile))
{
num_samples = pcm_bytes_to_samples(read_32bitLE(0x18,streamFile), channel_count, bps); /* true even for Ogg */
/* later games use "OggS" */
if (version == 1)
start_offset = 0x1c; /* Nancy Drew: The Final Scene (PC) */
else if (version == 2 && read_32bitBE(0x1e,streamFile) == 0x4F676753)
start_offset = 0x1e; /* Nancy Drew: The Haunted Carousel (PC) */
else if (version == 2 && read_32bitBE(0x20,streamFile) == 0x4F676753)
start_offset = 0x20; /* Nancy Drew: The Silent Spy (PC) */
else
goto fail;
}
else {
goto fail;
}
if (version == 2) {
#ifdef VGM_USE_VORBIS
ogg_vorbis_meta_info_t ovmi = {0};
ovmi.meta_type = meta_HIS;
return init_vgmstream_ogg_vorbis_callbacks(streamFile, NULL, start_offset, &ovmi);
#else
goto fail;
#endif
}
/* build the VGMSTREAM */
vgmstream = allocate_vgmstream(channel_count,loop_flag);
if (!vgmstream) goto fail;
vgmstream->meta_type = meta_HIS;
vgmstream->sample_rate = sample_rate;
vgmstream->num_samples = num_samples;
switch (bps) {
case 8:
bps = 1;
vgmstream->coding_type = coding_PCM8_U;
vgmstream->layout_type = layout_interleave;
vgmstream->interleave_block_size = 0x01;
break;
case 16:
bps = 2;
vgmstream->coding_type = coding_PCM16LE;
vgmstream->layout_type = layout_interleave;
vgmstream->interleave_block_size = 0x02;
break;
default:
goto fail;
}
/* check bytes per frame */
if (read_16bitLE(0x20,streamFile) != channel_count*bps) goto fail;
/* check size */
/* file size -8 */
if ((read_32bitLE(0x1c,streamFile)+8) != get_streamfile_size(streamFile))
goto fail;
/* data chunk size, assume it occupies the rest of the file */
//if ((read_32bitLE(0x28,streamFile)+start_offset) != get_streamfile_size(streamFile))
// 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(0x28,streamFile) / channel_count / bps;
vgmstream->sample_rate = read_32bitLE(0x18,streamFile);
vgmstream->meta_type = meta_HIS;
vgmstream->layout_type = layout_none;
if (bps == 2)
{
vgmstream->coding_type = coding_PCM16LE;
if (channel_count == 2)
{
vgmstream->coding_type = coding_PCM16_int;
vgmstream->interleave_block_size = 2;
}
}
else // bps == 1
{
vgmstream->coding_type = coding_PCM8_U;
if (channel_count == 2)
{
vgmstream->coding_type = coding_PCM8_U_int;
vgmstream->interleave_block_size = 1;
}
}
/* open the file for reading */
{
STREAMFILE * file;
file = streamFile->open(streamFile,filename,STREAMFILE_DEFAULT_BUFFER_SIZE);
if (!file) goto fail;
vgmstream->ch[0].streamfile = file;
vgmstream->ch[0].channel_start_offset=
vgmstream->ch[0].offset=start_offset;
if (channel_count == 2)
{
file = streamFile->open(streamFile,filename,STREAMFILE_DEFAULT_BUFFER_SIZE);
if (!file) goto fail;
vgmstream->ch[1].streamfile = file;
vgmstream->ch[0].channel_start_offset=
vgmstream->ch[1].offset=start_offset + vgmstream->interleave_block_size;
}
}
if (!vgmstream_open_stream(vgmstream,streamFile,start_offset))
goto fail;
return vgmstream;
/* clean up anything we may have opened */
fail:
if (vgmstream) close_vgmstream(vgmstream);
close_vgmstream(vgmstream);
return NULL;
}