70 lines
2.0 KiB
C
70 lines
2.0 KiB
C
#include "meta.h"
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#include "../coding/coding.h"
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#include "../layout/layout.h"
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#include "../util/endianness.h"
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/* EA WVE (Ad10) - from early Electronic Arts movies [Wing Commander 3/4 (PS1), Madden NHL 97 (PC)-w95] */
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VGMSTREAM* init_vgmstream_ea_wve_ad10(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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int big_endian, is_ps1;
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/* checks */
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/* .wve: common
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* .mov: Madden NHL 97 (also uses .wve) */
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if (!check_extensions(sf, "wve,mov"))
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goto fail;
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start_offset = 0x00;
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if (!is_id32be(0x00, sf, "AABB") && /* video block */
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!is_id32be(0x00, sf, "Ad10") && /* audio block */
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!is_id32be(0x00, sf, "Ad11")) /* last audio block, but could be first */
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goto fail;
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big_endian = guess_endian32(0x04, sf);
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if (is_id32be(0x00, sf, "AABB"))
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start_offset += big_endian ? read_u32be(0x04, sf) : read_u32le(0x04, sf);
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loop_flag = 0;
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if (ps_check_format(sf, start_offset + 0x08, 0x40)) {
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/* no header = no channels, but seems if the first PS-ADPCM header is 00 then it's mono, somehow
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* (ex. Wing Commander 3 intro / Wing Commander 4 = stereo, rest of Wing Commander 3 = mono) */
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channels = read_u8(start_offset + 0x08,sf) != 0 ? 2 : 1;
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is_ps1 = 1;
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VGM_LOG("ps1");
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}
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else {
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channels = 1;
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is_ps1 = 0;
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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->sample_rate = 22050;
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vgmstream->meta_type = meta_EA_WVE_AD10;
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vgmstream->layout_type = layout_blocked_ea_wve_ad10;
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vgmstream->codec_config = big_endian;
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if (is_ps1)
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vgmstream->coding_type = coding_PSX;
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else
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vgmstream->coding_type = coding_PCM8_U_int;
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if (!vgmstream_open_stream(vgmstream, sf, start_offset))
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goto fail;
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blocked_count_samples(vgmstream, sf, start_offset);
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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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