mirror of
https://github.com/vgmstream/vgmstream.git
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80 lines
2.4 KiB
C
80 lines
2.4 KiB
C
#include "meta.h"
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#include "../coding/coding.h"
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/* Entergram NXA1 Opus [Higurashi no Naku Koro ni Hou (Switch), Gensou Rougoku no Kaleidoscope (Switch)] */
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VGMSTREAM* init_vgmstream_nxa1(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, type, sample_rate;
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int32_t num_samples, loop_start, loop_end, skip;
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size_t data_size, frame_size;
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/* checks */
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if (!is_id32be(0x00, sf, "NXA1"))
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goto fail;
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if (!check_extensions(sf, "nxa"))
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goto fail;
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start_offset = 0x30;
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type = read_u32le(0x04, sf);
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data_size = read_u32le(0x08, sf) - start_offset;
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sample_rate = read_u32le(0x0C, sf);
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channels = read_s16le(0x10, sf);
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frame_size = read_u16le(0x12, sf);
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/* 0x14: frame samples */
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skip = read_s16le(0x16, sf);
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num_samples = read_s32le(0x18, sf);
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loop_start = read_s32le(0x1c, sf);
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loop_end = read_s32le(0x20, sf);
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/* rest: null */
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loop_flag = (loop_start > 0);
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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->meta_type = meta_NXA1;
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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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switch(type) {
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#ifdef VGM_USE_FFMPEG
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case 1: { /* Higurashi no Naku Koro ni Hou (Switch) */
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vgmstream->codec_data = init_ffmpeg_switch_opus(sf, start_offset, data_size, vgmstream->channels, skip, vgmstream->sample_rate);
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if (!vgmstream->codec_data) goto fail;
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vgmstream->coding_type = coding_FFmpeg;
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vgmstream->layout_type = layout_none;
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break;
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}
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case 2: { /* Gensou Rougoku no Kaleidoscope (Switch) */
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opus_config cfg = {0};
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cfg.channels = channels;
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cfg.skip = skip;
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cfg.frame_size = frame_size;
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vgmstream->codec_data = init_ffmpeg_fixed_opus(sf, start_offset, data_size, &cfg);
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if (!vgmstream->codec_data) goto fail;
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vgmstream->coding_type = coding_FFmpeg;
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vgmstream->layout_type = layout_none;
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break;
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}
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#endif
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default:
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goto fail;
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}
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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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