mirror of
https://github.com/vgmstream/vgmstream.git
synced 2024-12-19 18:05:52 +01:00
67 lines
2.3 KiB
C
67 lines
2.3 KiB
C
#include "meta.h"
|
|
#include "../coding/coding.h"
|
|
|
|
/* .NAAC - from Namco 3DS games (Ace Combat - Assault Horizon Legacy, Taiko no Tatsujin Don to Katsu no Jikuu Daibouken) */
|
|
VGMSTREAM * init_vgmstream_naac(STREAMFILE *streamFile) {
|
|
VGMSTREAM * vgmstream = NULL;
|
|
off_t start_offset;
|
|
int loop_flag, channel_count;
|
|
size_t data_size;
|
|
|
|
/* check extension */
|
|
if ( !check_extensions(streamFile,"naac") )
|
|
goto fail;
|
|
|
|
/* check header */
|
|
if (read_32bitBE(0x00,streamFile) != 0x41414320) /* "AAC " */
|
|
goto fail;
|
|
if (read_32bitLE(0x04,streamFile) != 0x01) /* version? */
|
|
goto fail;
|
|
|
|
start_offset = 0x1000;
|
|
loop_flag = (read_32bitLE(0x18,streamFile) != 0);
|
|
channel_count = read_32bitLE(0x08,streamFile);
|
|
|
|
/* build the VGMSTREAM */
|
|
vgmstream = allocate_vgmstream(channel_count,loop_flag);
|
|
if (!vgmstream) goto fail;
|
|
|
|
vgmstream->sample_rate = read_32bitLE(0x0c,streamFile);
|
|
vgmstream->num_samples = read_32bitLE(0x10,streamFile); /* without skip_samples */
|
|
vgmstream->loop_start_sample = read_32bitLE(0x14,streamFile); /* with skip_samples */
|
|
vgmstream->loop_end_sample = read_32bitLE(0x18,streamFile);
|
|
/* 0x1c: loop start offset, 0x20: loop end offset (within data) */
|
|
data_size = read_32bitLE(0x24,streamFile);
|
|
/* 0x28: unknown; 0x2c: table start offset?; 0x30: seek table (always 0xFD0, padded) */
|
|
|
|
vgmstream->meta_type = meta_NAAC;
|
|
|
|
#ifdef VGM_USE_FFMPEG
|
|
{
|
|
ffmpeg_codec_data *ffmpeg_data = NULL;
|
|
|
|
ffmpeg_data = init_ffmpeg_offset(streamFile, start_offset,data_size);
|
|
if (!ffmpeg_data) goto fail;
|
|
vgmstream->codec_data = ffmpeg_data;
|
|
vgmstream->coding_type = coding_FFmpeg;
|
|
vgmstream->layout_type = layout_none;
|
|
|
|
/* observed default, some files start without silence though seems correct when loop_start=0 */
|
|
if (!ffmpeg_data->skipSamples) /* FFmpeg doesn't seem to use not report it */
|
|
ffmpeg_set_skip_samples(ffmpeg_data, 1024);
|
|
vgmstream->num_samples -= 1024;
|
|
}
|
|
#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;
|
|
}
|