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Fix some .NAAC looping issues

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bnnm 2020-12-09 21:18:13 +01:00
parent dda311e696
commit 01cd373567
1 changed files with 23 additions and 18 deletions
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37
src/meta/naac.c
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@ -1,38 +1,42 @@
#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* sf) {
VGMSTREAM* vgmstream = NULL;
off_t start_offset;
int loop_flag, channel_count;
int loop_flag, channels;
size_t data_size;
/* check extension */
/* checks */
if (!check_extensions(sf,"naac"))
goto fail;
/* check header */
if (read_32bitBE(0x00,sf) != 0x41414320) /* "AAC " */
if (read_u32be(0x00,sf) != 0x41414320) /* "AAC " */
goto fail;
if (read_32bitLE(0x04,sf) != 0x01) /* version? */
if (read_u32le(0x04,sf) != 0x01) /* version? */
goto fail;
start_offset = 0x1000;
loop_flag = (read_32bitLE(0x18,sf) != 0);
channel_count = read_32bitLE(0x08,sf);
loop_flag = (read_s32le(0x18,sf) != 0);
channels = read_s32le(0x08,sf);
/* build the VGMSTREAM */
vgmstream = allocate_vgmstream(channel_count,loop_flag);
vgmstream = allocate_vgmstream(channels, loop_flag);
if (!vgmstream) goto fail;
vgmstream->sample_rate = read_32bitLE(0x0c,sf);
vgmstream->num_samples = read_32bitLE(0x10,sf); /* without skip_samples */
vgmstream->loop_start_sample = read_32bitLE(0x14,sf); /* with skip_samples */
vgmstream->loop_end_sample = read_32bitLE(0x18,sf);
/* 0x1c: loop start offset, 0x20: loop end offset (within data) */
data_size = read_32bitLE(0x24,sf);
/* 0x28: unknown; 0x2c: table start offset?; 0x30: seek table (always 0xFD0, padded) */
vgmstream->sample_rate = read_s32le(0x0c,sf);
vgmstream->num_samples = read_s32le(0x10,sf); /* without skip_samples */
vgmstream->loop_start_sample = read_s32le(0x14,sf); /* with skip_samples */
vgmstream->loop_end_sample = read_s32le(0x18,sf) + 1; /* without skip_samples */
/* 0x1c: loop start offset */
/* 0x20: loop end offset (within data) */
data_size = read_u32le(0x24,sf);
/* 0x28: unknown */
/* 0x2c: table start offset? */
/* 0x30: seek table (always 0xFD0, padded) */
vgmstream->meta_type = meta_NAAC;
@ -45,7 +49,8 @@ VGMSTREAM* init_vgmstream_naac(STREAMFILE* sf) {
/* observed default, some files start without silence though seems correct when loop_start=0 */
ffmpeg_set_skip_samples(vgmstream->codec_data, 1024); /* raw AAC doesn't set this */
vgmstream->num_samples -= 1024;
vgmstream->num_samples -= 1024; /* may end with 1024 of silence? */
vgmstream->loop_end_sample -= 1024;
}
#else
goto fail;