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Added akb2 msadpcm support

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nine 2017-04-21 04:21:51 +09:00
parent e14eb7eecc
commit 3d5a83dddb
1 changed files with 21 additions and 4 deletions
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25
src/meta/akb.c
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@ -138,6 +138,7 @@ VGMSTREAM * init_vgmstream_akb2_multi(STREAMFILE *streamFile) {
off_t start_offset, header_offset;
size_t datasize;
int loop_flag = 0, channel_count, codec;
int akb_header_size, sound_index = 0, sound_offset_data, sound, sound_header_size, material_offset_data, material_index = 0, material, extradata, encryption_flag;
/* check extensions */
if ( !check_extensions(streamFile, "akb") )
@ -147,10 +148,17 @@ VGMSTREAM * init_vgmstream_akb2_multi(STREAMFILE *streamFile) {
if (read_32bitBE(0x00,streamFile) != 0x414B4232) /* "AKB2" */
goto fail;
/* this is weird (BE?) but seems to work */
start_offset = (uint16_t)read_16bitBE(0x21,streamFile);
header_offset = start_offset - 0x50;
if (header_offset < 0x30) goto fail;
akb_header_size = read_16bitLE(0x06, streamFile);
sound_offset_data = akb_header_size + sound_index * 0x10;
sound = read_32bitLE(sound_offset_data + 0x04, streamFile);
sound_header_size = read_16bitLE(sound + 0x02, streamFile);
material_offset_data = sound + sound_header_size + material_index * 0x10;
material = sound + read_32bitLE(material_offset_data + 0x04, streamFile);
encryption_flag = read_8bit(material + 0x03, streamFile) & 0x08;
extradata = material + read_16bitLE(material + 0x04, streamFile);
start_offset = material + read_16bitLE(material + 0x04, streamFile) + read_32bitLE(material + 0x18, streamFile);
header_offset = material;
channel_count = read_8bit(header_offset+0x02,streamFile);
loop_flag = read_32bitLE(header_offset+0x14,streamFile) > 0;
@ -172,6 +180,15 @@ VGMSTREAM * init_vgmstream_akb2_multi(STREAMFILE *streamFile) {
vgmstream->meta_type = meta_AKB;
switch (codec) {
case 0x02: { /* msadpcm [The Irregular at Magic High School Lost Zero (Android)] */
if (encryption_flag) goto fail;
vgmstream->num_samples = read_32bitLE(extradata + 0x04, streamFile);
vgmstream->coding_type = coding_MSADPCM;
vgmstream->layout_type = layout_none;
vgmstream->interleave_block_size = read_16bitLE(extradata + 0x02, streamFile);
break;
}
#ifdef VGM_USE_FFMPEG
case 0x05: { /* ogg vorbis [The World Ends with You (iPhone / latest update)] */
ffmpeg_codec_data *ffmpeg_data;