mirror of
https://github.com/vgmstream/vgmstream.git
synced 2024-12-19 18:05:52 +01:00
84 lines
2.7 KiB
C
84 lines
2.7 KiB
C
|
#include "meta.h"
|
||
|
|
#include "../coding/coding.h"
|
||
|
|
|
||
|
|
|
||
|
|
/* FFDL - Matrix Software wrapper [Final Fantasy Dimensions (Android/iOS)] */
|
||
|
|
VGMSTREAM * init_vgmstream_ffdl(STREAMFILE *sf) {
|
||
|
|
VGMSTREAM * vgmstream = NULL;
|
||
|
|
STREAMFILE *temp_sf = NULL;
|
||
|
|
int loop_flag = 0, is_ffdl = 0;
|
||
|
|
int32_t num_samples = 0, loop_start_sample = 0, loop_end_sample = 0;
|
||
|
|
off_t start_offset;
|
||
|
|
size_t file_size;
|
||
|
|
|
||
|
|
|
||
|
|
/* checks */
|
||
|
|
/* .ogg/logg: probably extension
|
||
|
|
* (extensionless): for files without names in Android .obb bigfile */
|
||
|
|
if (!check_extensions(sf, "ogg,logg,bin,"))
|
||
|
|
goto fail;
|
||
|
|
|
||
|
|
/* "FFDL" is a wrapper used in all of the game's files, that may contain standard
|
||
|
|
* Ogg/MP4 or "mtxs" w/ loops + Ogg/MP4, and may concatenate multiple of them
|
||
|
|
* (without size in sight), so they should be split externally first. */
|
||
|
|
|
||
|
|
start_offset = 0x00;
|
||
|
|
|
||
|
|
/* may start with wrapper (not split) */
|
||
|
|
if (read_u32be(0x00,sf) == 0x4646444C) { /* "FFDL" */
|
||
|
|
is_ffdl = 1;
|
||
|
|
start_offset += 0x04;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* may start with sample info (split) or after "FFDL" */
|
||
|
|
if (read_u32be(start_offset+0x00,sf) == 0x6D747873) { /* "mtxs" */
|
||
|
|
is_ffdl = 1;
|
||
|
|
|
||
|
|
num_samples = read_s32le(start_offset + 0x04,sf);
|
||
|
|
loop_start_sample = read_s32le(start_offset + 0x08,sf);
|
||
|
|
loop_end_sample = read_s32le(start_offset + 0x0c,sf);
|
||
|
|
loop_flag = !(loop_start_sample==0 && loop_end_sample==num_samples);
|
||
|
|
|
||
|
|
start_offset += 0x10;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!is_ffdl)
|
||
|
|
goto fail; /* don't parse regular files */
|
||
|
|
|
||
|
|
file_size = get_streamfile_size(sf) - start_offset;
|
||
|
|
|
||
|
|
if (read_u32be(start_offset,sf) == 0x4F676753) { /* "OggS" */
|
||
|
|
temp_sf = setup_subfile_streamfile(sf, start_offset, file_size, "ogg");
|
||
|
|
if (!temp_sf) goto fail;
|
||
|
|
|
||
|
|
#ifdef VGM_USE_VORBIS
|
||
|
|
vgmstream = init_vgmstream_ogg_vorbis(temp_sf);
|
||
|
|
if (!vgmstream) goto fail;
|
||
|
|
#else
|
||
|
|
goto fail;
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
goto fail;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* install loops */
|
||
|
|
if (loop_flag) {
|
||
|
|
/* num_samples is erratic (can be bigger = padded, or smaller = cut; doesn't matter for looping though) */
|
||
|
|
//;VGM_ASSERT(vgmstream->num_samples != num_samples,
|
||
|
|
// "FFDL: mtxs samples = %i vs num_samples = %i\n", num_samples, vgmstream->num_samples);
|
||
|
|
//vgmstream->num_samples = num_samples;
|
||
|
|
|
||
|
|
/* loop samples are within num_samples, and don't have encoder delay (loop_start=0 starts from encoder_delay) */
|
||
|
|
vgmstream_force_loop(vgmstream, 1, loop_start_sample, loop_end_sample);
|
||
|
|
}
|
||
|
|
|
||
|
|
close_streamfile(temp_sf);
|
||
|
|
return vgmstream;
|
||
|
|
|
||
|
|
fail:
|
||
|
|
close_streamfile(temp_sf);
|
||
|
|
close_vgmstream(vgmstream);
|
||
|
|
return NULL;
|
||
|
|
}
|