#include "meta.h"
#include "../coding/coding.h"

/* raw PCM file assumed by extension [PaRappa The Rapper 2 (PS2), Amplitude (PS2), R-Type Final (PS2)] */
VGMSTREAM* init_vgmstream_raw_int(STREAMFILE* sf) {
    VGMSTREAM* vgmstream = NULL;
    off_t start_offset;
    int channel_count;

    /* checks */
    if (!check_extensions(sf, "int,wp2"))
        goto fail;

    if (check_extensions(sf, "wp2"))
        channel_count = 4;
    else
        channel_count = 2;

    /* ignore .int PS-ADPCM (some files start with silence so up a bit) */
    if (ps_check_format(sf, 0x00, 0x100000))
        goto fail;

    start_offset = 0x00;


    /* build the VGMSTREAM */
    vgmstream = allocate_vgmstream(channel_count, 0);
    if (!vgmstream) goto fail;

    vgmstream->meta_type = meta_RAW_INT;
    vgmstream->sample_rate = 48000;
    vgmstream->num_samples = pcm_bytes_to_samples(get_streamfile_size(sf), vgmstream->channels, 16);
    vgmstream->coding_type = coding_PCM16LE;
    vgmstream->layout_type = layout_interleave;
    vgmstream->interleave_block_size = 0x200;

    if (!vgmstream_open_stream(vgmstream, sf, start_offset))
        goto fail;
    return vgmstream;

fail:
    close_vgmstream(vgmstream);
    return NULL;
}