vgmstream/src/meta/ps3_vawx.c

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#include "meta.h"
#include "../util.h"
#include "../header.h"
#define FAKE_RIFF_BUFFER_SIZE 100
/**
* VAWX - found in feelplus games: No More Heroes Heroes Paradise, Moon Diver
*/
VGMSTREAM * init_vgmstream_vawx(STREAMFILE *streamFile) {
VGMSTREAM * vgmstream = NULL;
off_t start_offset, datasize;
int loop_flag = 0, channel_count, type;
/* check extensions */
if ( !header_check_extensions(streamFile, "vawx,xwv") )
goto fail;
/* check header */
if (read_32bitBE(0x00,streamFile) != 0x56415758) /* "VAWX" */
goto fail;
loop_flag = read_8bit(0x37,streamFile);
channel_count = read_8bit(0x39,streamFile);;
/* build the VGMSTREAM */
vgmstream = allocate_vgmstream(channel_count,loop_flag);
if (!vgmstream) goto fail;
/* 0x04: filesize */
start_offset = 0x800; /* ? read_32bitLE(0x0c,streamFile); */
vgmstream->channels = channel_count;
/* 0x16: file id */
type = read_8bit(0x36,streamFile); /* could be at 0x38 too */
vgmstream->num_samples = read_32bitBE(0x3c,streamFile);
vgmstream->sample_rate = read_32bitBE(0x40,streamFile);
vgmstream->meta_type = meta_VAWX;
switch(type) {
case 2: /* VAG */
vgmstream->coding_type = coding_PSX;
vgmstream->layout_type = layout_interleave;
vgmstream->interleave_block_size = 0x10;
vgmstream->loop_start_sample = read_32bitBE(0x44,streamFile);
vgmstream->loop_end_sample = read_32bitBE(0x48,streamFile);
/* todo 6ch has 0x8000 blocks and must skip last 0x20 each block (or, skip 0x20 every 0x1550*6 */
break;
#ifdef VGM_USE_FFMPEG
case 1: { /* XMA */
ffmpeg_codec_data *ffmpeg_data = NULL;
uint8_t buf[FAKE_RIFF_BUFFER_SIZE];
size_t bytes, block_size, block_count;
/* not accurate but not needed by FFmpeg */
datasize = get_streamfile_size(streamFile)-start_offset;
block_size = 2048;
block_count = datasize / block_size; /* read_32bitLE(custom_data_offset +0x14) -1? */
/* make a fake riff so FFmpeg can parse the XMA2 */
bytes = header_make_riff_xma2(buf, FAKE_RIFF_BUFFER_SIZE, vgmstream->num_samples, datasize, vgmstream->channels, vgmstream->sample_rate, block_count, block_size);
if (bytes <= 0)
goto fail;
ffmpeg_data = init_ffmpeg_header_offset(streamFile, buf,bytes, start_offset,datasize);
if ( !ffmpeg_data ) goto fail;
vgmstream->codec_data = ffmpeg_data;
vgmstream->coding_type = coding_FFmpeg;
vgmstream->layout_type = layout_none;
vgmstream->loop_start_sample = read_32bitBE(0x44,streamFile);
vgmstream->loop_end_sample = read_32bitBE(0x48,streamFile);
break;
}
case 7: { /* ATRAC3 */
ffmpeg_codec_data *ffmpeg_data = NULL;
uint8_t buf[FAKE_RIFF_BUFFER_SIZE];
size_t bytes, block_size, encoder_delay;
int joint_stereo;
int32_t max_samples;
datasize = read_32bitBE(0x54,streamFile);
block_size = 0x98 * 2;
joint_stereo = 0;
max_samples = (datasize / block_size) * 1024;
encoder_delay = 0x0; /* not used by FFmpeg */
if (vgmstream->num_samples > max_samples) {
vgmstream->num_samples = max_samples;
/*encoder_delay = ?; */ /* todo some tracks need it to skip garbage but not sure how to calculate it */
}
/* make a fake riff so FFmpeg can parse the ATRAC3 */
bytes = header_make_riff_atrac3(buf, FAKE_RIFF_BUFFER_SIZE, vgmstream->num_samples, datasize, vgmstream->channels, vgmstream->sample_rate, block_size, joint_stereo, encoder_delay);
if (bytes <= 0)
goto fail;
ffmpeg_data = init_ffmpeg_header_offset(streamFile, buf,bytes, start_offset,datasize);
if ( !ffmpeg_data ) goto fail;
vgmstream->codec_data = ffmpeg_data;
vgmstream->coding_type = coding_FFmpeg;
vgmstream->layout_type = layout_none;
vgmstream->loop_start_sample = (read_32bitBE(0x44,streamFile) / ffmpeg_data->blockAlign) * ffmpeg_data->frameSize;
vgmstream->loop_end_sample = (read_32bitBE(0x48,streamFile) / ffmpeg_data->blockAlign) * ffmpeg_data->frameSize;
break;
}
#endif
default:
goto fail;
}
/* open the file for reading */
if ( !header_open_stream(vgmstream, streamFile, start_offset) )
goto fail;
return vgmstream;
fail:
close_vgmstream(vgmstream);
return NULL;
}