63 lines
1.8 KiB
C
63 lines
1.8 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;
|
|
|
|
/* 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->meta_type = meta_VA3;
|
|
vgmstream->sample_rate = read_32bitLE(0x14, streamFile);
|
|
vgmstream->num_samples = read_32bitLE(0x08, streamFile);
|
|
vgmstream->channels = channel_count;
|
|
|
|
#ifdef VGM_USE_FFMPEG
|
|
{
|
|
int block_align, encoder_delay;
|
|
|
|
block_align = 0xC0 * vgmstream->channels;
|
|
encoder_delay = 0; //todo
|
|
|
|
vgmstream->codec_data = init_ffmpeg_atrac3_raw(streamFile, start_offset,data_size, vgmstream->num_samples,vgmstream->channels,vgmstream->sample_rate, block_align, encoder_delay);
|
|
if (!vgmstream->codec_data) goto fail;
|
|
vgmstream->coding_type = coding_FFmpeg;
|
|
vgmstream->layout_type = layout_none;
|
|
}
|
|
#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;
|
|
}
|