vgmstream/src/meta/nxof.c

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#include "meta.h"
#include "../coding/coding.h"
/* Nihon Falcom FDK NXOpus [Ys X -NORDICS- (Switch)] */
VGMSTREAM* init_vgmstream_nxof(STREAMFILE* sf) {
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VGMSTREAM* vgmstream = NULL;
off_t start_offset;
int loop_flag, channels, sample_rate;
size_t data_size, skip = 0;
int32_t num_samples, loop_start, loop_end;
/* checks */
if (!is_id32le(0x00, sf, "nxof"))
goto fail;
if (!check_extensions(sf,"nxopus"))
goto fail;
channels = read_u8(0x05, sf);
sample_rate = read_u32le(0x08, sf);
start_offset = read_u32le(0x18, sf);
data_size = read_u32le(0x1C, sf);
num_samples = read_u32le(0x20, sf);
loop_start = read_u32le(0x30, sf);
loop_end = read_u32le(0x34, sf);
loop_flag = (loop_end > 0);
vgmstream = allocate_vgmstream(channels, loop_flag);
if (!vgmstream) goto fail;
vgmstream->meta_type = meta_NXOF;
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vgmstream->sample_rate = sample_rate;
vgmstream->num_samples = num_samples;
vgmstream->loop_start_sample = loop_start;
vgmstream->loop_end_sample = loop_end;
#ifdef VGM_USE_FFMPEG
skip = switch_opus_get_encoder_delay(start_offset, sf);
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vgmstream->codec_data = init_ffmpeg_switch_opus(sf, start_offset, data_size, vgmstream->channels, skip, vgmstream->sample_rate);
if (!vgmstream->codec_data) goto fail;
vgmstream->coding_type = coding_FFmpeg;
vgmstream->layout_type = layout_none;
#else
goto fail;
#endif
if (!vgmstream_open_stream(vgmstream, sf, start_offset))
goto fail;
return vgmstream;
fail:
close_vgmstream(vgmstream);
return NULL;
}