mirror of
https://github.com/vgmstream/vgmstream.git
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139 lines
4.0 KiB
C
139 lines
4.0 KiB
C
#include "meta.h"
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#include "../coding/coding.h"
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/* HIS - Her Interactive games [Nancy Drew series (PC)] */
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VGMSTREAM* init_vgmstream_his(STREAMFILE* sf) {
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VGMSTREAM* vgmstream = NULL;
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int channels, loop_flag = 0, bps, sample_rate, num_samples, version, codec;
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uint32_t start_offset;
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/* checks */
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if (!is_id32be(0x00,sf, "Her ") &&
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!is_id32be(0x00,sf, "HIS\0"))
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goto fail;
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if (!check_extensions(sf, "his"))
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goto fail;
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if (is_id32be(0x00,sf, "Her ")) { /* "Her Interactive Sound\x1a" */
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version = 0;
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codec = 1;
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/* Nancy Drew: Secrets Can Kill (PC) */
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channels = read_u16le(0x16,sf);
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sample_rate = read_u32le(0x18,sf);
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/* 0x1c: bitrate */
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/* 0x20: block size */
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bps = read_u16le(0x22,sf);
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if (!is_id32be(0x24,sf, "data"))
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goto fail;
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num_samples = pcm_bytes_to_samples(read_u32le(0x28,sf), channels, bps);
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start_offset = 0x2c;
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}
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else if (is_id32be(0x00,sf, "HIS\0")) {
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/* most(?) others */
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version = read_u32le(0x04,sf);
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/* 0x08: format? (always 1) */
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channels = read_u16le(0x0a,sf);
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sample_rate = read_u32le(0x0c,sf);
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/* 0x10: bitrate */
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/* 0x14: block size */
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bps = read_u16le(0x16,sf);
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num_samples = pcm_bytes_to_samples(read_u32le(0x18,sf), channels, bps); /* true even for Ogg */
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if (version >= 2) {
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codec = read_u16le(0x1c,sf); /* 1:pcm, 2:ogg */
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/* 0x1e: data or null in later(?) games */
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}
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else {
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codec = 1;
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}
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if (version == 1) {
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start_offset = 0x1c; /* Nancy Drew: The Final Scene (PC) */
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}
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else if (version == 2) {
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if (codec == 1) {
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uint32_t left_size = get_streamfile_size(sf) - 0x1e;
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if (num_samples == pcm_bytes_to_samples(left_size, channels, bps))
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start_offset = 0x1e; /* Nancy Drew: Ghost Dogs of Moon Lake (PC) */
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else
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start_offset = 0x20; /* assumed */
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}
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else if (codec == 2) {
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if (read_u16le(0x1e, sf) != 0)
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start_offset = 0x1e; /* Nancy Drew: The Haunted Carousel (PC) */
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else
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start_offset = 0x20; /* Nancy Drew: The Silent Spy (PC) */
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}
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else {
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goto fail;
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}
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}
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else {
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goto fail;
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}
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}
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else {
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goto fail;
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}
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/*
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if (codec == 2) {
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ogg_vorbis_meta_info_t ovmi = {0};
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ovmi.meta_type = meta_HIS;
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return init_vgmstream_ogg_vorbis_config(sf, start_offset, &ovmi);
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}
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*/
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/* build the VGMSTREAM */
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vgmstream = allocate_vgmstream(channels, loop_flag);
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if (!vgmstream) goto fail;
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vgmstream->meta_type = meta_HIS;
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vgmstream->sample_rate = sample_rate;
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vgmstream->num_samples = num_samples;
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switch (codec) {
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case 1:
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switch (bps) {
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case 8:
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vgmstream->coding_type = coding_PCM8_U;
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vgmstream->layout_type = layout_interleave;
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vgmstream->interleave_block_size = 0x01;
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break;
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case 16:
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vgmstream->coding_type = coding_PCM16LE;
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vgmstream->layout_type = layout_interleave;
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vgmstream->interleave_block_size = 0x02;
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break;
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default:
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goto fail;
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}
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break;
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case 2:
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#ifdef VGM_USE_VORBIS
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vgmstream->codec_data = init_ogg_vorbis(sf, start_offset, 0, NULL);
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if (!vgmstream->codec_data) goto fail;
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vgmstream->coding_type = coding_OGG_VORBIS;
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vgmstream->layout_type = layout_none;
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break;
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#endif
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default:
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goto fail;
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}
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if (!vgmstream_open_stream(vgmstream, sf, start_offset))
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goto fail;
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return vgmstream;
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fail:
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close_vgmstream(vgmstream);
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return NULL;
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}
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