118 lines
3.5 KiB
C
118 lines
3.5 KiB
C
#include "meta.h"
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#include "../coding/coding.h"
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/* RKV - from Legacy of Kain - Blood Omen 2 (PS2) */
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VGMSTREAM* init_vgmstream_ps2_rkv(STREAMFILE *sf) {
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VGMSTREAM* vgmstream = NULL;
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off_t start_offset, header_offset;
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size_t data_size;
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int loop_flag, channels;
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/* checks */
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if (!check_extensions(sf, "rkv"))
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goto fail;
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if (read_u32be(0x24,sf) != 0x00) /* quick test vs GC rkv (coef position) */
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goto fail;
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/* some RKV got info at offset 0x00, some other at 0x0 4 */
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if (read_u32le(0x00,sf) == 0)
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header_offset = 0x04;
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else
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header_offset = 0x00;
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switch (read_u32le(header_offset+0x0c,sf)) {
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case 0x00: channels = 1; break;
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case 0x01: channels = 2; break;
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default: goto fail;
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}
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loop_flag = (read_u32le(header_offset+0x04,sf) != 0xFFFFFFFF);
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start_offset = 0x800;
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data_size = get_streamfile_size(sf) - start_offset;
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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->sample_rate = read_s32le(header_offset,sf);
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vgmstream->num_samples = ps_bytes_to_samples(data_size, channels);
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//vgmstream->num_samples = read_32bitLE(header_offset+0x08,sf); /* sometimes not set */
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if (loop_flag) {
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vgmstream->loop_start_sample = read_s32le(header_offset+0x04,sf);
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vgmstream->loop_end_sample = read_s32le(header_offset+0x08,sf);
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}
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vgmstream->meta_type = meta_PS2_RKV;
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vgmstream->coding_type = coding_PSX;
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vgmstream->layout_type = layout_interleave;
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vgmstream->interleave_block_size = 0x400;
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if (vgmstream->interleave_block_size)
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vgmstream->interleave_last_block_size = (data_size % (vgmstream->interleave_block_size*vgmstream->channels)) / vgmstream->channels;
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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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/* RKV - from Legacy of Kain - Blood Omen 2 (GC) */
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VGMSTREAM* init_vgmstream_ngc_rkv(STREAMFILE* sf) {
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VGMSTREAM* vgmstream = NULL;
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off_t start_offset;
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int loop_flag, channels;
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/* checks */
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/* "": empty (files have names but no extensions)
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* .rkv: container bigfile extension
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* .bo2: fake extension */
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if (!check_extensions(sf, ",rkv,bo2"))
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goto fail;
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if (read_u32be(0x00,sf) != 0x00)
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goto fail;
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if (read_u32be(0x24,sf) == 0x00) /* quick test vs GC rkv (coef position) */
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goto fail;
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switch (read_u32be(0x10,sf)) {
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case 0x00: channels = 1; break;
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case 0x01: channels = 2; break;
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default: goto fail;
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}
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loop_flag = (read_u32be(0x08,sf) != 0xFFFFFFFF);
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start_offset = 0x800;
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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->sample_rate = read_s32be(0x04,sf);
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vgmstream->num_samples = read_s32be(0x0C,sf);
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if (loop_flag) {
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vgmstream->loop_start_sample = read_s32be(0x08,sf);
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vgmstream->loop_end_sample = read_s32be(0x0C,sf);
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}
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vgmstream->meta_type = meta_NGC_RKV;
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vgmstream->coding_type = coding_NGC_DSP;
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vgmstream->layout_type = layout_interleave;
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vgmstream->interleave_block_size = 0x400;
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dsp_read_coefs_be(vgmstream,sf,0x24,0x2e);
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/* hist at 0x44/0x72? */
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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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