mirror of
https://github.com/vgmstream/vgmstream.git
synced 2024-12-22 19:35:52 +01:00
94 lines
3.0 KiB
C
94 lines
3.0 KiB
C
#include "meta.h"
|
|
#include "../coding/coding.h"
|
|
#include "../layout/layout.h"
|
|
|
|
/* Nippon Ichi SPS wrapper (segmented) [Penny-Punching Princess (Switch)] */
|
|
VGMSTREAM * init_vgmstream_opus_sps_n1_segmented(STREAMFILE *streamFile) {
|
|
VGMSTREAM * vgmstream = NULL;
|
|
off_t segment_offset;
|
|
int loop_flag, channel_count;
|
|
int i;
|
|
|
|
segmented_layout_data *data = NULL;
|
|
int segment_count, loop_start_segment = 0, loop_end_segment = 0;
|
|
int num_samples = 0, loop_start_sample = 0, loop_end_sample = 0;
|
|
|
|
|
|
/* checks */
|
|
if (!check_extensions(streamFile, "at9"))
|
|
goto fail;
|
|
if (read_32bitBE(0x00,streamFile) != 0x09000000) /* file type (see other N1 SPS) */
|
|
goto fail;
|
|
if (read_32bitLE(0x04,streamFile) + 0x1c != get_streamfile_size(streamFile))
|
|
goto fail;
|
|
/* 0x08(2): sample rate, 0x0a(2): flag?, 0x0c: num_samples (slightly smaller than added samples) */
|
|
|
|
segment_count = 3; /* intro/loop/end */
|
|
loop_start_segment = 1;
|
|
loop_end_segment = 1;
|
|
loop_flag = (segment_count > 0);
|
|
|
|
/* init layout */
|
|
data = init_layout_segmented(segment_count);
|
|
if (!data) goto fail;
|
|
|
|
/* open each segment subfile */
|
|
segment_offset = 0x1c;
|
|
for (i = 0; i < segment_count; i++) {
|
|
STREAMFILE* temp_streamFile;
|
|
size_t segment_size = read_32bitLE(0x10+0x04*i,streamFile);
|
|
|
|
if (!segment_size)
|
|
goto fail;
|
|
|
|
temp_streamFile = setup_subfile_streamfile(streamFile, segment_offset,segment_size, "opus");
|
|
if (!temp_streamFile) goto fail;
|
|
|
|
data->segments[i] = init_vgmstream_opus_std(temp_streamFile);
|
|
close_streamfile(temp_streamFile);
|
|
if (!data->segments[i]) goto fail;
|
|
|
|
segment_offset += segment_size;
|
|
|
|
//todo there are some trailing samples that must be removed for smooth loops, start skip seems ok
|
|
data->segments[i]->num_samples -= 374; //not correct for all files, no idea how to calculate
|
|
|
|
/* get looping and samples */
|
|
if (loop_flag && loop_start_segment == i)
|
|
loop_start_sample = num_samples;
|
|
|
|
num_samples += data->segments[i]->num_samples;
|
|
|
|
if (loop_flag && loop_end_segment == i)
|
|
loop_end_sample = num_samples;
|
|
}
|
|
|
|
/* setup segmented VGMSTREAMs */
|
|
if (!setup_layout_segmented(data))
|
|
goto fail;
|
|
|
|
|
|
channel_count = data->segments[0]->channels;
|
|
|
|
/* build the VGMSTREAM */
|
|
vgmstream = allocate_vgmstream(channel_count,loop_flag);
|
|
if (!vgmstream) goto fail;
|
|
|
|
vgmstream->sample_rate = (uint16_t)read_16bitLE(0x08,streamFile);
|
|
vgmstream->num_samples = num_samples;
|
|
vgmstream->loop_start_sample = loop_start_sample;
|
|
vgmstream->loop_end_sample = loop_end_sample;
|
|
|
|
vgmstream->meta_type = meta_OPUS_PPP;
|
|
vgmstream->coding_type = data->segments[0]->coding_type;
|
|
vgmstream->layout_type = layout_segmented;
|
|
vgmstream->layout_data = data;
|
|
|
|
return vgmstream;
|
|
|
|
fail:
|
|
close_vgmstream(vgmstream);
|
|
free_layout_segmented(data);
|
|
return NULL;
|
|
}
|