mirror of
https://github.com/vgmstream/vgmstream.git
synced 2024-12-24 12:24:50 +01:00
81 lines
2.6 KiB
C
81 lines
2.6 KiB
C
#include "meta.h"
|
|
#include "../coding/coding.h"
|
|
|
|
|
|
/* VA3 - Konami / Sony Atrac3 Container [PS2 DDR Supernova 2 Arcade] */
|
|
VGMSTREAM * init_vgmstream_va3(STREAMFILE *streamFile) {
|
|
VGMSTREAM * vgmstream = NULL;
|
|
off_t start_offset;
|
|
int loop_flag, channel_count;
|
|
uint32_t data_size, loop_start, loop_end;
|
|
|
|
/* check extension, case insensitive */
|
|
if (!check_extensions(streamFile, "va3"))
|
|
goto fail;
|
|
|
|
if (read_32bitBE(0x00, streamFile) != 0x21334156) /* "!3AV" */
|
|
goto fail;
|
|
|
|
/* va3 header */
|
|
start_offset = 0x800;
|
|
data_size = read_32bitLE(0x04, streamFile);// get_streamfile_size(streamFile) - start_offset;
|
|
// pretty sure 0x4 LE 32 bit is some sort of filesize...
|
|
|
|
loop_flag = 0;
|
|
//0x18 is 1... what is this?
|
|
channel_count = 2;
|
|
|
|
|
|
/* build the VGMSTREAM */
|
|
vgmstream = allocate_vgmstream(channel_count, loop_flag);
|
|
if (!vgmstream) goto fail;
|
|
|
|
|
|
vgmstream->sample_rate = read_32bitLE(0x14, streamFile);
|
|
vgmstream->num_samples = read_32bitLE(0x08, streamFile);
|
|
vgmstream->channels = channel_count;
|
|
vgmstream->meta_type = meta_VA3;
|
|
loop_start = 0;
|
|
loop_end = 0;
|
|
|
|
#ifdef VGM_USE_FFMPEG
|
|
{
|
|
ffmpeg_codec_data *ffmpeg_data = NULL;
|
|
uint8_t buf[200];
|
|
int32_t bytes, samples_size = 1024, block_size, encoder_delay, joint_stereo;
|
|
block_size = 0xC0 * vgmstream->channels;
|
|
//max_samples = (data_size / block_size) * samples_size;
|
|
encoder_delay = 0x0;
|
|
joint_stereo = 0;
|
|
|
|
/* make a fake riff so FFmpeg can parse the ATRAC3 */
|
|
bytes = ffmpeg_make_riff_atrac3(buf, 200, vgmstream->num_samples, data_size, 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, data_size);
|
|
if (!ffmpeg_data) goto fail;
|
|
vgmstream->codec_data = ffmpeg_data;
|
|
vgmstream->coding_type = coding_FFmpeg;
|
|
vgmstream->layout_type = layout_none;
|
|
//vgmstream->num_samples = max_samples;
|
|
|
|
if (loop_flag) {
|
|
vgmstream->loop_start_sample = (loop_start / block_size) * samples_size;
|
|
vgmstream->loop_end_sample = (loop_end / block_size) * samples_size;
|
|
}
|
|
|
|
}
|
|
#else
|
|
goto fail;
|
|
#endif
|
|
|
|
/* open the file for reading */
|
|
if (!vgmstream_open_stream(vgmstream, streamFile, start_offset))
|
|
goto fail;
|
|
return vgmstream;
|
|
|
|
fail:
|
|
close_vgmstream(vgmstream);
|
|
return NULL;
|
|
}
|