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Clean ngc_dsp/mdsp_std

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This commit is contained in:
bnnm 2018-03-29 23:10:13 +02:00
parent 868834d52b
commit a029bd9e1d
1 changed files with 51 additions and 89 deletions
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140
src/meta/ngc_dsp_std.c
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@ -149,30 +149,29 @@ fail:
/* ********************************* */
/* the standard .dsp, as generated by DSPADPCM.exe */
/* .dsp - standard dsp as generated by DSPADPCM.exe */
VGMSTREAM * init_vgmstream_ngc_dsp_std(STREAMFILE *streamFile) {
VGMSTREAM * vgmstream = NULL;
char filename[PATH_LIMIT];
struct dsp_header header;
const off_t start_offset = 0x60;
int i;
const size_t header_size = 0x60;
off_t start_offset;
int i, channel_count;
/* check extension, case insensitive */
/* checks */
/* .dsp: standard, .adp: Dr. Muto (GC) mono files */
streamFile->get_name(streamFile,filename,sizeof(filename));
if (strcasecmp("dsp",filename_extension(filename)) &&
strcasecmp("adp", filename_extension(filename))) goto fail;
if (!check_extensions(streamFile, "dsp,adp"))
goto fail;
if (read_dsp_header(&header, 0, streamFile)) goto fail;
if (read_dsp_header(&header, 0x00, streamFile))
goto fail;
channel_count = 1;
start_offset = header_size;
/* check initial predictor/scale */
if (header.initial_ps != (uint8_t)read_8bit(start_offset,streamFile))
goto fail;
/* check type==0 and gain==0 */
goto fail; /* check initial predictor/scale */
if (header.format || header.gain)
goto fail;
goto fail; /* check type==0 and gain==0 */
/* Check for a matching second header. If we find one and it checks
* out thoroughly, we're probably not dealing with a genuine mono DSP.
@ -180,13 +179,14 @@ VGMSTREAM * init_vgmstream_ngc_dsp_std(STREAMFILE *streamFile) {
* predictor/scale check if the first byte is 0 */
{
struct dsp_header header2;
read_dsp_header(&header2, 0x60, streamFile);
read_dsp_header(&header2, header_size, streamFile);
if (header.sample_count == header2.sample_count &&
header.nibble_count == header2.nibble_count &&
header.sample_rate == header2.sample_rate &&
header.loop_flag == header2.loop_flag) goto fail;
header.loop_flag == header2.loop_flag) {
goto fail;
}
}
if (header.loop_flag) {
@ -194,7 +194,7 @@ VGMSTREAM * init_vgmstream_ngc_dsp_std(STREAMFILE *streamFile) {
/* check loop predictor/scale */
loop_off = header.loop_start_offset/16*8;
if (header.loop_ps != (uint8_t)read_8bit(start_offset+loop_off,streamFile)) {
/* rarely won't match (ex ESPN 2002), not sure if header or calc problem, but doesn't seem to matter
/* rarely won't match (ex ESPN 2002), not sure if header or calc problem, but doesn't seem to matter
* (there may be a "click" when looping, or loop values may be too big and loop disabled anyway) */
VGM_LOG("DSP (std): bad loop_predictor\n");
//header.loop_flag = 0;
@ -202,110 +202,76 @@ VGMSTREAM * init_vgmstream_ngc_dsp_std(STREAMFILE *streamFile) {
}
}
/* compare num_samples with nibble count */
/*
fprintf(stderr,"num samples (literal): %d\n",read_32bitBE(0,streamFile));
fprintf(stderr,"num samples (nibbles): %d\n",dsp_nibbles_to_samples(read_32bitBE(4,streamFile)));
*/
/* build the VGMSTREAM */
vgmstream = allocate_vgmstream(1,header.loop_flag);
vgmstream = allocate_vgmstream(channel_count,header.loop_flag);
if (!vgmstream) goto fail;
/* fill in the vital statistics */
vgmstream->num_samples = header.sample_count;
vgmstream->sample_rate = header.sample_rate;
vgmstream->loop_start_sample = dsp_nibbles_to_samples(
header.loop_start_offset);
vgmstream->loop_end_sample = dsp_nibbles_to_samples(
header.loop_end_offset)+1;
/* don't know why, but it does happen*/
if (vgmstream->loop_end_sample > vgmstream->num_samples)
vgmstream->num_samples = header.sample_count;
vgmstream->loop_start_sample = dsp_nibbles_to_samples(header.loop_start_offset);
vgmstream->loop_end_sample = dsp_nibbles_to_samples(header.loop_end_offset)+1;
if (vgmstream->loop_end_sample > vgmstream->num_samples) /* don't know why, but it does happen */
vgmstream->loop_end_sample = vgmstream->num_samples;
vgmstream->meta_type = meta_DSP_STD;
vgmstream->coding_type = coding_NGC_DSP;
vgmstream->layout_type = layout_none;
vgmstream->meta_type = meta_DSP_STD;
/* coeffs */
for (i=0;i<16;i++)
vgmstream->ch[0].adpcm_coef[i] = header.coef[i];
/* initial history */
/* always 0 that I've ever seen, but for completeness... */
vgmstream->ch[0].adpcm_history1_16 = header.initial_hist1;
vgmstream->ch[0].adpcm_history2_16 = header.initial_hist2;
/* open the file for reading */
vgmstream->ch[0].streamfile = streamFile->open(streamFile,filename,STREAMFILE_DEFAULT_BUFFER_SIZE);
if (!vgmstream->ch[0].streamfile) goto fail;
vgmstream->ch[0].channel_start_offset=
vgmstream->ch[0].offset=start_offset;
{
/* adpcm coeffs/history */
for (i = 0; i < 16; i++)
vgmstream->ch[0].adpcm_coef[i] = header.coef[i];
vgmstream->ch[0].adpcm_history1_16 = header.initial_hist1;
vgmstream->ch[0].adpcm_history2_16 = header.initial_hist2;
}
if (!vgmstream_open_stream(vgmstream,streamFile,start_offset))
goto fail;
return vgmstream;
fail:
/* clean up anything we may have opened */
if (vgmstream) close_vgmstream(vgmstream);
close_vgmstream(vgmstream);
return NULL;
}
/* the standard multi-channel .dsp, as generated by DSPADPCM.exe */
/* .dsp - standard multi-channel dsp as generated by DSPADPCM.exe (later revisions) */
VGMSTREAM * init_vgmstream_ngc_mdsp_std(STREAMFILE *streamFile) {
VGMSTREAM * vgmstream = NULL;
char filename[PATH_LIMIT];
struct dsp_header header;
const off_t header_size = 0x60;
const size_t header_size = 0x60;
off_t start_offset;
int i, c, channel_count;
/* check extension, case insensitive */
streamFile->get_name(streamFile, filename, sizeof(filename));
if (strcasecmp("dsp", filename_extension(filename)) &&
strcasecmp("mdsp", filename_extension(filename))) goto fail;
/* checks */
if (!check_extensions(streamFile, "dsp,mdsp"))
goto fail;
if (read_dsp_header(&header, 0, streamFile)) goto fail;
if (read_dsp_header(&header, 0x00, streamFile))
goto fail;
channel_count = header.channel_count==0 ? 1 : header.channel_count;
start_offset = header_size * channel_count;
/* check initial predictor/scale */
if (header.initial_ps != (uint8_t)read_8bit(start_offset, streamFile))
goto fail;
/* check type==0 and gain==0 */
goto fail; /* check initial predictor/scale */
if (header.format || header.gain)
goto fail;
goto fail; /* check type==0 and gain==0 */
/* build the VGMSTREAM */
vgmstream = allocate_vgmstream(channel_count, header.loop_flag);
if (!vgmstream) goto fail;
/* fill in the vital statistics */
vgmstream->num_samples = header.sample_count;
vgmstream->sample_rate = header.sample_rate;
vgmstream->loop_start_sample = dsp_nibbles_to_samples(
header.loop_start_offset);
vgmstream->loop_end_sample = dsp_nibbles_to_samples(
header.loop_end_offset) + 1;
/* don't know why, but it does happen*/
if (vgmstream->loop_end_sample > vgmstream->num_samples)
vgmstream->num_samples = header.sample_count;
vgmstream->loop_start_sample = dsp_nibbles_to_samples(header.loop_start_offset);
vgmstream->loop_end_sample = dsp_nibbles_to_samples(header.loop_end_offset) + 1;
if (vgmstream->loop_end_sample > vgmstream->num_samples) /* don't know why, but it does happen*/
vgmstream->loop_end_sample = vgmstream->num_samples;
vgmstream->meta_type = meta_DSP_STD;
vgmstream->coding_type = coding_NGC_DSP;
vgmstream->layout_type = channel_count == 1 ? layout_none : layout_interleave;
vgmstream->meta_type = meta_DSP_STD;
vgmstream->interleave_block_size = header.block_size * 8;
if (vgmstream->interleave_block_size)
vgmstream->interleave_last_block_size = (header.nibble_count / 2 % vgmstream->interleave_block_size + 7) / 8 * 8;
@ -313,12 +279,9 @@ VGMSTREAM * init_vgmstream_ngc_mdsp_std(STREAMFILE *streamFile) {
for (i = 0; i < channel_count; i++) {
if (read_dsp_header(&header, header_size * i, streamFile)) goto fail;
/* coeffs */
/* adpcm coeffs/history */
for (c = 0; c < 16; c++)
vgmstream->ch[i].adpcm_coef[c] = header.coef[c];
/* initial history */
/* always 0 that I've ever seen, but for completeness... */
vgmstream->ch[i].adpcm_history1_16 = header.initial_hist1;
vgmstream->ch[i].adpcm_history2_16 = header.initial_hist2;
}
@ -328,8 +291,7 @@ VGMSTREAM * init_vgmstream_ngc_mdsp_std(STREAMFILE *streamFile) {
return vgmstream;
fail:
/* clean up anything we may have opened */
if (vgmstream) close_vgmstream(vgmstream);
close_vgmstream(vgmstream);
return NULL;
}