/* EMFF - Eidos Music File Format (NGC/WII),
found in Tomb Raider Legend/Anniversary/Underworld, possibly more... */
VGMSTREAM * init_vgmstream_emff_ngc(STREAMFILE *streamFile) {
VGMSTREAM * vgmstream = NULL;
char filename[260];
off_t start_offset;
int loop_flag = 0;
int channel_count;
int frequency;
int i;
int j;
/* check extension, case insensitive */
streamFile->get_name(streamFile,filename,sizeof(filename));
if (strcasecmp("emff",filename_extension(filename))) goto fail;
/* do some checks on the file, cause we have no magic words to check the header...
it seems if 0x800 and 0x804 = 0 then the file has only audio, if 0x800 = 1
it has a text section, if both are 1 it's video with a text section included... */
if (read_32bitBE(0x800,streamFile) == 0x00000001 || /* "0x00000001" */
read_32bitBE(0x804,streamFile) == 0x00000001) /* "0x00000001" */
goto fail;
frequency = read_32bitBE(0x0,streamFile);
channel_count = read_32bitBE(0xC,streamFile);
if (frequency > 48000 ||
channel_count > 8) {
goto fail;
}
loop_flag = (read_32bitBE(0x4,streamFile) != 0xFFFFFFFF);
/* build the VGMSTREAM */
vgmstream = allocate_vgmstream(channel_count,loop_flag);
if (!vgmstream) goto fail;
/* fill in the vital statistics */
start_offset = 0x800;
vgmstream->sample_rate = frequency;
vgmstream->channels = channel_count;
vgmstream->coding_type = coding_NGC_DSP;
/* Retrieving coefs and loops, depending on the file layout... */
/* Found in Tomb Raider - Legend for GameCube */
if (read_32bitBE(0xC8,streamFile) > 0x0) {
off_t coef_table[8] = {0xC8,0xF6,0x124,0x152,0x180,0x1AE,0x1DC,0x20A};
for (j=0;j<vgmstream->channels;j++) {
for (i=0;i<16;i++) {
vgmstream->ch[j].adpcm_coef[i] = read_16bitBE(coef_table[j]+i*2,streamFile);
}
}
/* Found in Tomb Raider - Anniversary for WII */
} else if (read_32bitBE(0xCC,streamFile) > 0x0) {
off_t coef_table[8] = {0xCC,0xFA,0x128,0x156,0x184,0x1B2,0x1E0,0x20E};
for (j=0;j<vgmstream->channels;j++) {
for (i=0;i<16;i++) {
vgmstream->ch[j].adpcm_coef[i] = read_16bitBE(coef_table[j]+i*2,streamFile);
}
}
/* Found in Tomb Raider - Underworld for WII */
} else if (read_32bitBE(0x2D0,streamFile) > 0x0) {
off_t coef_table[8] = {0x2D0,0x2FE,0x32C,0x35A,0x388,0x3B6,0x3E4,0x412};
for (j=0;j<vgmstream->channels;j++) {
for (i=0;i<16;i++) {
vgmstream->ch[j].adpcm_coef[i] = read_16bitBE(coef_table[j]+i*2,streamFile);
}
}
} else {
goto fail;
}
vgmstream->layout_type = layout_emff_ngc_blocked;
vgmstream->interleave_block_size = 0x10;
vgmstream->meta_type = meta_EMFF_NGC;
/* open the file for reading */
{
STREAMFILE * file;
file = streamFile->open(streamFile,filename,STREAMFILE_DEFAULT_BUFFER_SIZE);
if (!file) goto fail;
for (i=0;i<channel_count;i++) {
vgmstream->ch[i].streamfile = file;
}
}
/* Calc num_samples */
emff_ngc_block_update(start_offset,vgmstream);
vgmstream->num_samples = read_32bitBE(0x8,streamFile);;
if (loop_flag) {
vgmstream->loop_start_sample = (read_32bitBE(0x28,streamFile))*14/8/channel_count;
vgmstream->loop_end_sample = read_32bitBE(0x8,streamFile);
}
return vgmstream;
/* clean up anything we may have opened */
fail:
if (vgmstream) close_vgmstream(vgmstream);
return NULL;
}
void render_vgmstream_blocked(sample * buffer, int32_t sample_count, VGMSTREAM * vgmstream) {
int samples_written=0;
int frame_size = get_vgmstream_frame_size(vgmstream);
int samples_per_frame = get_vgmstream_samples_per_frame(vgmstream);
int samples_this_block;
if (frame_size == 0) {
/* assume 4 bit */
/* TODO: get_vgmstream_frame_size() really should return bits... */
samples_this_block = vgmstream->current_block_size * 2 * samples_per_frame;
} else {
samples_this_block = vgmstream->current_block_size / frame_size * samples_per_frame;
}
while (samples_written<sample_count) {
int samples_to_do;
if (vgmstream->loop_flag && vgmstream_do_loop(vgmstream)) {
if (frame_size == 0) {
samples_this_block = vgmstream->current_block_size * 2 * samples_per_frame;
} else {
samples_this_block = vgmstream->current_block_size / frame_size * samples_per_frame;
}
continue;
}
samples_to_do = vgmstream_samples_to_do(samples_this_block, samples_per_frame, vgmstream);
if (samples_written+samples_to_do > sample_count)
samples_to_do=sample_count-samples_written;
if (vgmstream->current_block_offset>=0)
decode_vgmstream(vgmstream, samples_written, samples_to_do, buffer);
else {
int i;
/* we've run off the end! */
for (i=samples_written*vgmstream->channels;
i<(samples_written+samples_to_do)*vgmstream->channels; i++)
buffer[i]=0;
}
samples_written += samples_to_do;
vgmstream->current_sample += samples_to_do;
vgmstream->samples_into_block+=samples_to_do;
if (vgmstream->samples_into_block==samples_this_block) {
switch (vgmstream->layout_type) {
case layout_ast_blocked:
ast_block_update(vgmstream->next_block_offset,vgmstream);
break;
case layout_halpst_blocked:
if (vgmstream->next_block_offset>=0)
halpst_block_update(vgmstream->next_block_offset,vgmstream);
else
vgmstream->current_block_offset=-1;
break;
case layout_xa_blocked:
xa_block_update(vgmstream->next_block_offset,vgmstream);
break;
case layout_ea_blocked:
ea_block_update(vgmstream->next_block_offset,vgmstream);
break;
case layout_eacs_blocked:
eacs_block_update(vgmstream->next_block_offset,vgmstream);
break;
case layout_caf_blocked:
caf_block_update(vgmstream->next_block_offset,vgmstream);
break;
case layout_wsi_blocked:
wsi_block_update(vgmstream->next_block_offset,vgmstream);
break;
case layout_str_snds_blocked:
str_snds_block_update(vgmstream->next_block_offset,vgmstream);
break;
case layout_ws_aud_blocked:
ws_aud_block_update(vgmstream->next_block_offset,vgmstream);
break;
case layout_matx_blocked:
matx_block_update(vgmstream->next_block_offset,vgmstream);
break;
case layout_de2_blocked:
de2_block_update(vgmstream->next_block_offset,vgmstream);
break;
case layout_emff_ps2_blocked:
emff_ps2_block_update(vgmstream->next_block_offset,vgmstream);
break;
case layout_emff_ngc_blocked:
emff_ngc_block_update(vgmstream->next_block_offset,vgmstream);
break;
case layout_gsb_blocked:
gsb_block_update(vgmstream->next_block_offset,vgmstream);
break;
case layout_vs_blocked:
vs_block_update(vgmstream->next_block_offset,vgmstream);
break;
case layout_xvas_blocked:
xvas_block_update(vgmstream->next_block_offset,vgmstream);
break;
case layout_thp_blocked:
thp_block_update(vgmstream->next_block_offset,vgmstream);
break;
case layout_filp_blocked:
filp_block_update(vgmstream->next_block_offset,vgmstream);
break;
default:
break;
}
/* for VBR these may change */
frame_size = get_vgmstream_frame_size(vgmstream);
samples_per_frame = get_vgmstream_samples_per_frame(vgmstream);
if (frame_size == 0) {
samples_this_block = vgmstream->current_block_size * 2 * samples_per_frame;
} else {
samples_this_block = vgmstream->current_block_size / frame_size * samples_per_frame;
}
vgmstream->samples_into_block=0;
}
}
}
