mirror of
https://github.com/vgmstream/vgmstream.git
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c72ff8dd46
Move code to rkv.c as it's the same format, add .rkv (archive) extension, remove file and rename to init ngc_rkv
116 lines
3.8 KiB
C
116 lines
3.8 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 *streamFile) {
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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, channel_count;
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/* checks */
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if (!check_extensions(streamFile, "rkv"))
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goto fail;
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if (read_32bitBE(0x24,streamFile) != 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_32bitLE(0x00,streamFile)==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_32bitLE(header_offset+0x0c,streamFile)) {
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case 0x00: channel_count = 1; break;
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case 0x01: channel_count = 2; break;
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default: goto fail;
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}
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loop_flag = (read_32bitLE(header_offset+0x04,streamFile) != 0xFFFFFFFF);
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start_offset = 0x800;
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data_size = get_streamfile_size(streamFile) - start_offset;
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/* build the VGMSTREAM */
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vgmstream = allocate_vgmstream(channel_count,loop_flag);
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if (!vgmstream) goto fail;
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vgmstream->sample_rate = read_32bitLE(header_offset,streamFile);
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vgmstream->num_samples = ps_bytes_to_samples(data_size, channel_count);
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//vgmstream->num_samples = read_32bitLE(header_offset+0x08,streamFile); /* sometimes not set */
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if (loop_flag) {
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vgmstream->loop_start_sample = read_32bitLE(header_offset+0x04,streamFile);
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vgmstream->loop_end_sample = read_32bitLE(header_offset+0x08,streamFile);
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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,streamFile,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 *streamFile) {
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VGMSTREAM * vgmstream = NULL;
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off_t start_offset;
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int loop_flag, channel_count;
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/* checks */
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/* "": empty (files have names but no extensions), .rkv: container bigfile extension, .bo2: fake extension */
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if (!check_extensions(streamFile, ",rkv,bo2"))
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goto fail;
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if (read_32bitBE(0x00,streamFile) != 0x00)
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goto fail;
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if (read_32bitBE(0x24,streamFile) == 0x00) /* quick test vs GC rkv (coef position) */
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goto fail;
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switch (read_32bitBE(0x10,streamFile)) {
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case 0x00: channel_count = 1; break;
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case 0x01: channel_count = 2; break;
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default: goto fail;
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}
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loop_flag = (read_32bitBE(0x08,streamFile) != 0xFFFFFFFF);
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start_offset = 0x800;
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/* build the VGMSTREAM */
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vgmstream = allocate_vgmstream(channel_count,loop_flag);
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if (!vgmstream) goto fail;
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vgmstream->sample_rate = read_32bitBE(0x04,streamFile);
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vgmstream->num_samples = read_32bitBE(0x0C,streamFile);
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if (loop_flag) {
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vgmstream->loop_start_sample = read_32bitBE(0x08,streamFile);
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vgmstream->loop_end_sample = read_32bitBE(0x0C,streamFile);
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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,streamFile,0x24,0x2e);
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/* hist at 0x44/0x72? */
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if (!vgmstream_open_stream(vgmstream,streamFile,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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