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https://github.com/vgmstream/vgmstream.git
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123 lines
3.9 KiB
C
123 lines
3.9 KiB
C
#include "meta.h"
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#include "../coding/coding.h"
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static size_t joe_find_padding(STREAMFILE* sf, off_t start_offset, size_t data_size, int channels, size_t interleave);
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/* .JOE - from Asobo Studio games [Up (PS2), Wall-E (PS2)] */
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VGMSTREAM* init_vgmstream_ps2_joe(STREAMFILE* sf) {
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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;
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size_t file_size, data_size, unknown1, unknown2, interleave, padding_size;
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/* checks */
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if (!check_extensions(sf, "joe"))
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goto fail;
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file_size = get_streamfile_size(sf);
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data_size = read_u32le(0x04,sf);
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unknown1 = read_u32le(0x08,sf);
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unknown2 = read_u32le(0x0c,sf);
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/* detect version */
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if (data_size == file_size - 0x800
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&& unknown1 == 0x00002000 && unknown2 == 0xFFFFFFFF) { /* NYR (PS2) */
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interleave = 0x2000;
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start_offset = 0x800;
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}
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else 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) { /* Counter Terrorism Special Forces (PS2), all games beyond */
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/* header can be section(?) table (0x08=entry count) then 0xCCCCCCCC, all 0s, or all 0xCCCCCCCC (no table) */
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interleave = 0x10;
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start_offset = 0x4020;
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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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loop_flag = 0;
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sample_rate = read_s32le(0x00,sf);
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/* the file's end is padded with either 0xcdcdcdcd or zeroes (but not always, ex. NYR) */
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padding_size = joe_find_padding(sf, start_offset, data_size, channel_count, interleave);
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data_size -= padding_size;
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num_samples = ps_bytes_to_samples(data_size, channel_count);
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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->stream_size = data_size;
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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, 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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static size_t joe_find_padding(STREAMFILE* sf, off_t start_offset, size_t data_size, int channels, size_t interleave) {
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uint32_t pad;
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off_t min_offset, offset;
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size_t frame_size = 0x10;
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size_t padding_size = 0;
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size_t interleave_consumed = 0;
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if (data_size == 0 || channels == 0 || (channels > 0 && interleave == 0))
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return 0;
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offset = start_offset + data_size - interleave * (channels - 1);
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min_offset = start_offset;
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while (offset > min_offset) {
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offset -= frame_size;
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pad = read_u32be(offset, sf);
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if (pad != 0xCDCDCDCD && pad != 0x00000000)
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break;
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padding_size += frame_size * channels;
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/* skip other channels */
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interleave_consumed += 0x10;
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if (interleave_consumed == interleave) {
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interleave_consumed = 0;
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offset -= interleave * (channels - 1);
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}
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}
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if (padding_size >= data_size)
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return 0;
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return padding_size;
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}
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