mirror of
https://github.com/vgmstream/vgmstream.git
synced 2024-11-12 09:40:51 +01:00
Fix Lunar 2 SCD loops/sample rate/stereo and PCM8 cleanup
This commit is contained in:
bnnm
parent
5aad45ab87
commit
4ee39206c3
@ -62,14 +62,14 @@ void decode_ngc_dtk(VGMSTREAMCHANNEL * stream, sample * outbuf, int channelspaci
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void decode_ngc_afc(VGMSTREAMCHANNEL * stream, sample * outbuf, int channelspacing, int32_t first_sample, int32_t samples_to_do);
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/* pcm_decoder */
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void decode_pcm16LE(VGMSTREAMCHANNEL * stream, sample * outbuf, int channelspacing, int32_t first_sample, int32_t samples_to_do);
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void decode_pcm16BE(VGMSTREAMCHANNEL * stream, sample * outbuf, int channelspacing, int32_t first_sample, int32_t samples_to_do);
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void decode_pcm16le(VGMSTREAMCHANNEL * stream, sample * outbuf, int channelspacing, int32_t first_sample, int32_t samples_to_do);
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void decode_pcm16be(VGMSTREAMCHANNEL * stream, sample * outbuf, int channelspacing, int32_t first_sample, int32_t samples_to_do);
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void decode_pcm16_int(VGMSTREAMCHANNEL * stream, sample * outbuf, int channelspacing, int32_t first_sample, int32_t samples_to_do, int big_endian);
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void decode_pcm8(VGMSTREAMCHANNEL * stream, sample * outbuf, int channelspacing, int32_t first_sample, int32_t samples_to_do);
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void decode_pcm8_int(VGMSTREAMCHANNEL * stream, sample * outbuf, int channelspacing, int32_t first_sample, int32_t samples_to_do);
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void decode_pcm8_sb_int(VGMSTREAMCHANNEL * stream, sample * outbuf, int channelspacing, int32_t first_sample, int32_t samples_to_do);
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void decode_pcm8_unsigned_int(VGMSTREAMCHANNEL * stream, sample * outbuf, int channelspacing, int32_t first_sample, int32_t samples_to_do);
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void decode_pcm8_unsigned(VGMSTREAMCHANNEL * stream, sample * outbuf, int channelspacing, int32_t first_sample, int32_t samples_to_do);
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void decode_pcm8_unsigned_int(VGMSTREAMCHANNEL * stream, sample * outbuf, int channelspacing, int32_t first_sample, int32_t samples_to_do);
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void decode_pcm8_sb(VGMSTREAMCHANNEL * stream, sample * outbuf, int channelspacing, int32_t first_sample, int32_t samples_to_do);
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void decode_ulaw(VGMSTREAMCHANNEL * stream, sample * outbuf, int channelspacing, int32_t first_sample, int32_t samples_to_do);
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void decode_ulaw_int(VGMSTREAMCHANNEL * stream, sample * outbuf, int channelspacing, int32_t first_sample, int32_t samples_to_do);
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void decode_alaw(VGMSTREAMCHANNEL * stream, sample * outbuf, int channelspacing, int32_t first_sample, int32_t samples_to_do);
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@ -2,7 +2,7 @@
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#include "../util.h"
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#include <math.h>
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void decode_pcm16LE(VGMSTREAMCHANNEL * stream, sample * outbuf, int channelspacing, int32_t first_sample, int32_t samples_to_do) {
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void decode_pcm16le(VGMSTREAMCHANNEL * stream, sample * outbuf, int channelspacing, int32_t first_sample, int32_t samples_to_do) {
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int i;
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int32_t sample_count;
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@ -11,7 +11,7 @@ void decode_pcm16LE(VGMSTREAMCHANNEL * stream, sample * outbuf, int channelspaci
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}
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}
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void decode_pcm16BE(VGMSTREAMCHANNEL * stream, sample * outbuf, int channelspacing, int32_t first_sample, int32_t samples_to_do) {
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void decode_pcm16be(VGMSTREAMCHANNEL * stream, sample * outbuf, int channelspacing, int32_t first_sample, int32_t samples_to_do) {
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int i;
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int32_t sample_count;
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@ -20,6 +20,15 @@ void decode_pcm16BE(VGMSTREAMCHANNEL * stream, sample * outbuf, int channelspaci
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}
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}
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void decode_pcm16_int(VGMSTREAMCHANNEL * stream, sample * outbuf, int channelspacing, int32_t first_sample, int32_t samples_to_do, int big_endian) {
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int i, sample_count;
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int16_t (*read_16bit)(off_t,STREAMFILE*) = big_endian ? read_16bitBE : read_16bitLE;
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for (i=first_sample,sample_count=0; i<first_sample+samples_to_do; i++,sample_count+=channelspacing) {
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outbuf[sample_count]=read_16bit(stream->offset+i*2*channelspacing,stream->streamfile);
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}
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}
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void decode_pcm8(VGMSTREAMCHANNEL * stream, sample * outbuf, int channelspacing, int32_t first_sample, int32_t samples_to_do) {
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int i;
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int32_t sample_count;
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@ -38,14 +47,13 @@ void decode_pcm8_int(VGMSTREAMCHANNEL * stream, sample * outbuf, int channelspac
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}
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}
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void decode_pcm8_sb_int(VGMSTREAMCHANNEL * stream, sample * outbuf, int channelspacing, int32_t first_sample, int32_t samples_to_do) {
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void decode_pcm8_unsigned(VGMSTREAMCHANNEL * stream, sample * outbuf, int channelspacing, int32_t first_sample, int32_t samples_to_do) {
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int i;
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int32_t sample_count;
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for (i=first_sample,sample_count=0; i<first_sample+samples_to_do; i++,sample_count+=channelspacing) {
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int16_t v = (uint8_t)read_8bit(stream->offset+i*channelspacing,stream->streamfile);
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if (v&0x80) v = 0-(v&0x7f);
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outbuf[sample_count] = v*0x100;
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int16_t v = (uint8_t)read_8bit(stream->offset+i,stream->streamfile);
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outbuf[sample_count] = v*0x100 - 0x8000;
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}
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}
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@ -59,22 +67,14 @@ void decode_pcm8_unsigned_int(VGMSTREAMCHANNEL * stream, sample * outbuf, int ch
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}
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}
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void decode_pcm8_unsigned(VGMSTREAMCHANNEL * stream, sample * outbuf, int channelspacing, int32_t first_sample, int32_t samples_to_do) {
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void decode_pcm8_sb(VGMSTREAMCHANNEL * stream, sample * outbuf, int channelspacing, int32_t first_sample, int32_t samples_to_do) {
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int i;
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int32_t sample_count;
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for (i=first_sample,sample_count=0; i<first_sample+samples_to_do; i++,sample_count+=channelspacing) {
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int16_t v = (uint8_t)read_8bit(stream->offset+i,stream->streamfile);
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outbuf[sample_count] = v*0x100 - 0x8000;
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}
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}
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void decode_pcm16_int(VGMSTREAMCHANNEL * stream, sample * outbuf, int channelspacing, int32_t first_sample, int32_t samples_to_do, int big_endian) {
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int i, sample_count;
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int16_t (*read_16bit)(off_t,STREAMFILE*) = big_endian ? read_16bitBE : read_16bitLE;
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for (i=first_sample,sample_count=0; i<first_sample+samples_to_do; i++,sample_count+=channelspacing) {
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outbuf[sample_count]=read_16bit(stream->offset+i*2*channelspacing,stream->streamfile);
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if (v&0x80) v = 0-(v&0x7f);
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outbuf[sample_count] = v*0x100;
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}
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}
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@ -215,6 +215,7 @@ static const char* extension_list[] = {
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"mihb",
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"mnstr",
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"mogg",
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//"mp3", //common
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//"mp4", //common
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//"mpc", //FFmpeg, not parsed (musepack) //common
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"mpdsp",
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@ -496,7 +497,7 @@ static const coding_info coding_info_list[] = {
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{coding_PCM8_int, "8-bit PCM with 1 byte interleave (block)"},
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{coding_PCM8_U, "8-bit unsigned PCM"},
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{coding_PCM8_U_int, "8-bit unsigned PCM with 1 byte interleave (block)"},
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{coding_PCM8_SB_int, "8-bit PCM with sign bit, 1 byte interleave (block)"},
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{coding_PCM8_SB, "8-bit PCM with sign bit"},
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{coding_ULAW, "8-bit u-Law"},
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{coding_ULAW_int, "8-bit u-Law with 1 byte interleave (block)"},
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{coding_ALAW, "8-bit a-Law"},
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@ -1,63 +1,65 @@
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#include "meta.h"
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#include "../util.h"
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#include "../coding/coding.h"
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/* PCM (from Lunar: Eternal Blue (Sega CD) */
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/* .PCM - from Lunar: Eternal Blue (Sega CD) */
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VGMSTREAM * init_vgmstream_scd_pcm(STREAMFILE *streamFile) {
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VGMSTREAM * vgmstream = NULL;
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char filename[PATH_LIMIT];
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off_t start_offset;
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int loop_flag, channel_count;
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int loop_flag;
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int channel_count;
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/* check extension, case insensitive */
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streamFile->get_name(streamFile,filename,sizeof(filename));
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if (strcasecmp("pcm",filename_extension(filename))) goto fail;
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/* check header */
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if (read_32bitBE(0x0,streamFile) != 0x00020000)
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/* checks */
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if (!check_extensions(streamFile, "pcm"))
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goto fail;
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loop_flag = (read_32bitLE(0x02,streamFile)!=0);
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channel_count = 1;
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if (read_16bitBE(0x00,streamFile) == 0x0002) {
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channel_count = 1;
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}
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else if (read_16bitBE(0x00,streamFile) == 0x0001) {
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channel_count = 2; /* RP025.PCM, RP039.PCM */
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}
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else {
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goto fail;
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}
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start_offset = 0x800;
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/* extra validations since .pcm it's kinda generic */
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{
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off_t i;
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/* should be empty up to start (~0x0a/~0x10 sometimes has unknown values) */
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for (i = 0x20; i < start_offset; i++) {
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if (read_8bit(i, streamFile) != 0)
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goto fail;
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}
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}
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/* loops start 0 is possible, plus all? files loops
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* (even sfx/voices loop, but those set loop start in silence near the end) */
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loop_flag = (read_32bitBE(0x06,streamFile) != 0);
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/* build the VGMSTREAM */
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vgmstream = allocate_vgmstream(channel_count,loop_flag);
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if (!vgmstream) goto fail;
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/* fill in the vital statistics */
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start_offset = 0x200;
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vgmstream->channels = channel_count;
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vgmstream->sample_rate = 32000;
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vgmstream->coding_type = coding_PCM8_SB_int;
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vgmstream->num_samples = read_32bitBE(0x06,streamFile)*2;
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if(loop_flag) {
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vgmstream->loop_start_sample = read_32bitBE(0x02,streamFile)*0x400*2;
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vgmstream->loop_end_sample = read_32bitBE(0x06,streamFile)*2;
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}
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vgmstream->layout_type = layout_interleave;
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vgmstream->interleave_block_size = 0x1;
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vgmstream->meta_type = meta_SCD_PCM;
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vgmstream->sample_rate = 32500; /* looks correct compared to emu/recordings */
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vgmstream->num_samples = pcm_bytes_to_samples(get_streamfile_size(streamFile) - start_offset, channel_count, 8);
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vgmstream->loop_start_sample = read_32bitBE(0x02,streamFile)*0x400*2;
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vgmstream->loop_end_sample = read_32bitBE(0x06,streamFile)*2;
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/* open the file for reading */
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{
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int i;
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STREAMFILE * file;
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file = streamFile->open(streamFile,filename,STREAMFILE_DEFAULT_BUFFER_SIZE);
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if (!file) goto fail;
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for (i=0;i<channel_count;i++) {
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vgmstream->ch[i].streamfile = file;
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vgmstream->ch[i].channel_start_offset=
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vgmstream->ch[i].offset=start_offset+
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vgmstream->interleave_block_size*i;
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}
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}
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vgmstream->coding_type = coding_PCM8_SB;
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vgmstream->layout_type = layout_interleave;
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vgmstream->interleave_block_size = 0x800;
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if (!vgmstream_open_stream(vgmstream,streamFile,start_offset))
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goto fail;
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return vgmstream;
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/* clean up anything we may have opened */
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fail:
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if (vgmstream) close_vgmstream(vgmstream);
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return NULL;
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close_vgmstream(vgmstream);
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return NULL;
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}
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@ -1054,10 +1054,10 @@ int get_vgmstream_samples_per_frame(VGMSTREAM * vgmstream) {
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case coding_PCM16BE:
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case coding_PCM16_int:
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case coding_PCM8:
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case coding_PCM8_U:
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case coding_PCM8_int:
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case coding_PCM8_SB_int:
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case coding_PCM8_U:
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case coding_PCM8_U_int:
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case coding_PCM8_SB:
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case coding_ULAW:
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case coding_ULAW_int:
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case coding_ALAW:
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@ -1238,10 +1238,10 @@ int get_vgmstream_frame_size(VGMSTREAM * vgmstream) {
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case coding_PCM16_int:
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return 0x02;
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case coding_PCM8:
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case coding_PCM8_U:
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case coding_PCM8_int:
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case coding_PCM8_SB_int:
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case coding_PCM8_U:
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case coding_PCM8_U_int:
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case coding_PCM8_SB:
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case coding_ULAW:
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case coding_ULAW_int:
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case coding_ALAW:
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@ -1446,16 +1446,17 @@ void decode_vgmstream(VGMSTREAM * vgmstream, int samples_written, int samples_to
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chan, vgmstream->interleave_block_size);
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}
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break;
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case coding_PCM16LE:
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for (chan=0;chan<vgmstream->channels;chan++) {
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decode_pcm16LE(&vgmstream->ch[chan],buffer+samples_written*vgmstream->channels+chan,
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decode_pcm16le(&vgmstream->ch[chan],buffer+samples_written*vgmstream->channels+chan,
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vgmstream->channels,vgmstream->samples_into_block,
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samples_to_do);
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}
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break;
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case coding_PCM16BE:
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for (chan=0;chan<vgmstream->channels;chan++) {
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decode_pcm16BE(&vgmstream->ch[chan],buffer+samples_written*vgmstream->channels+chan,
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decode_pcm16be(&vgmstream->ch[chan],buffer+samples_written*vgmstream->channels+chan,
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vgmstream->channels,vgmstream->samples_into_block,
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samples_to_do);
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}
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@ -1475,13 +1476,6 @@ void decode_vgmstream(VGMSTREAM * vgmstream, int samples_written, int samples_to
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samples_to_do);
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}
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break;
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case coding_PCM8_U:
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for (chan=0;chan<vgmstream->channels;chan++) {
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decode_pcm8_unsigned(&vgmstream->ch[chan],buffer+samples_written*vgmstream->channels+chan,
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vgmstream->channels,vgmstream->samples_into_block,
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samples_to_do);
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}
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break;
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case coding_PCM8_int:
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for (chan=0;chan<vgmstream->channels;chan++) {
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decode_pcm8_int(&vgmstream->ch[chan],buffer+samples_written*vgmstream->channels+chan,
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@ -1489,9 +1483,9 @@ void decode_vgmstream(VGMSTREAM * vgmstream, int samples_written, int samples_to
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samples_to_do);
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}
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break;
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case coding_PCM8_SB_int:
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case coding_PCM8_U:
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for (chan=0;chan<vgmstream->channels;chan++) {
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decode_pcm8_sb_int(&vgmstream->ch[chan],buffer+samples_written*vgmstream->channels+chan,
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decode_pcm8_unsigned(&vgmstream->ch[chan],buffer+samples_written*vgmstream->channels+chan,
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vgmstream->channels,vgmstream->samples_into_block,
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samples_to_do);
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}
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@ -1503,6 +1497,14 @@ void decode_vgmstream(VGMSTREAM * vgmstream, int samples_written, int samples_to
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samples_to_do);
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}
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break;
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case coding_PCM8_SB:
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for (chan=0;chan<vgmstream->channels;chan++) {
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decode_pcm8_sb(&vgmstream->ch[chan],buffer+samples_written*vgmstream->channels+chan,
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vgmstream->channels,vgmstream->samples_into_block,
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samples_to_do);
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}
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break;
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case coding_ULAW:
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for (chan=0;chan<vgmstream->channels;chan++) {
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decode_ulaw(&vgmstream->ch[chan],buffer+samples_written*vgmstream->channels+chan,
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@ -77,7 +77,7 @@ typedef enum {
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coding_PCM8_int, /* 8-bit PCM with sample-level interleave (for blocks) */
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coding_PCM8_U, /* 8-bit PCM, unsigned (0x80 = 0) */
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coding_PCM8_U_int, /* 8-bit PCM, unsigned (0x80 = 0) with sample-level interleave (for blocks) */
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coding_PCM8_SB_int, /* 8-bit PCM, sign bit (others are 2's complement) with sample-level interleave (for blocks) */
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coding_PCM8_SB, /* 8-bit PCM, sign bit (others are 2's complement) */
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coding_ULAW, /* 8-bit u-Law (non-linear PCM) */
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coding_ULAW_int, /* 8-bit u-Law (non-linear PCM) with sample-level interleave (for blocks) */
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