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83 lines
2.8 KiB
C
83 lines
2.8 KiB
C
#include "meta.h"
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#include "../coding/coding.h"
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/* .JOE - from Asobo Studio games [Up (PS2), Wall-E (PS2)] */
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VGMSTREAM * init_vgmstream_ps2_joe(STREAMFILE *streamFile) {
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VGMSTREAM * vgmstream = NULL;
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off_t start_offset;
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int channel_count, loop_flag, sample_rate;
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int32_t num_samples, loop_start = 0, loop_end = 0;
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size_t file_size, data_size, unknown1, unknown2, interleave;
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/* checks */
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if (!check_extensions(streamFile, "joe"))
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goto fail;
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file_size = get_streamfile_size(streamFile);
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data_size = read_32bitLE(0x04,streamFile);
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unknown1 = read_32bitLE(0x08,streamFile);
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unknown2 = read_32bitLE(0x0c,streamFile);
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/* detect version */
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if (data_size/2 == file_size - 0x10
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&& unknown1 == 0x0045039A && unknown2 == 0x00108920) { /* Super Farm (PS2) */
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data_size = data_size / 2;
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interleave = 0x4000;
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start_offset = 0x10;
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}
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else if (data_size/2 == file_size - 0x10
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&& unknown1 == 0xCCCCCCCC && unknown2 == 0xCCCCCCCC) { /* Sitting Ducks (PS2) */
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data_size = data_size / 2;
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interleave = 0x8000;
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start_offset = 0x10;
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}
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else if (data_size == file_size - 0x10
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&& unknown1 == 0xCCCCCCCC && unknown2 == 0xCCCCCCCC) { /* The Mummy: The Animated Series (PS2) */
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interleave = 0x8000;
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start_offset = 0x10;
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}
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else if (data_size == file_size - 0x4020) { /* CT Special Forces (PS2), and all games beyond */
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interleave = unknown1; /* always 0? */
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if (!interleave)
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interleave = 0x10;
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start_offset = 0x4020; /* header padding contains garbage */
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}
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else {
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goto fail;
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}
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//start_offset = file_size - data_size; /* also ok */
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channel_count = 2;
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sample_rate = read_32bitLE(0x00,streamFile);
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num_samples = ps_bytes_to_samples(data_size, channel_count);
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loop_flag = ps_find_loop_offsets(streamFile, start_offset, data_size, channel_count, interleave,&loop_start, &loop_end);
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/* most songs simply repeat except a few jingles (PS-ADPCM flags are always set) */
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loop_flag = loop_flag && (num_samples > 20*sample_rate); /* in seconds */
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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 = sample_rate;
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vgmstream->num_samples = num_samples;
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vgmstream->loop_start_sample = loop_start;
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vgmstream->loop_end_sample = loop_end;
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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 = interleave;
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vgmstream->meta_type = meta_PS2_JOE;
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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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