mirror of
https://github.com/vgmstream/vgmstream.git
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4b578db302
added .sng (WII) git-svn-id: https://vgmstream.svn.sourceforge.net/svnroot/vgmstream@532 51a99a44-fe44-0410-b1ba-c3e57ba2b86b
399 lines
13 KiB
C
399 lines
13 KiB
C
#include "../vgmstream.h"
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#include "meta.h"
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#include "../layout/layout.h"
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#include "../util.h"
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#ifdef VGM_USE_MPEG
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#include <mpg123.h>
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#endif
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/* GENH is an artificial "generic" header for headerless streams */
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VGMSTREAM * init_vgmstream_genh(STREAMFILE *streamFile) {
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VGMSTREAM * vgmstream = NULL;
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int32_t channel_count;
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int32_t interleave;
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int32_t sample_rate;
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int32_t loop_start;
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int32_t loop_end;
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int32_t start_offset;
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int32_t header_size;
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int32_t coef[2];
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int32_t coef_splitted[2];
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int32_t dsp_interleave_type;
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int32_t coef_type;
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char filename[260];
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int coding;
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#ifdef VGM_USE_MPEG
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mpeg_codec_data *data = NULL;
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#endif
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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("genh",filename_extension(filename))) goto fail;
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/* check header magic */
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if (read_32bitBE(0x0,streamFile) != 0x47454e48) goto fail;
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/* check channel count (needed for ADP/DTK check) */
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channel_count = read_32bitLE(0x4,streamFile);
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if (channel_count < 1) goto fail;
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/* check format */
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/* 0 = PSX ADPCM */
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/* 1 = XBOX IMA ADPCM */
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/* 2 = NGC ADP/DTK ADPCM */
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/* 3 = 16bit big endian PCM */
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/* 4 = 16bit little endian PCM */
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/* 5 = 8bit PCM */
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/* 6 = SDX2 */
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/* 7 = DVI IMA */
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/* 8 = MPEG-1 Layer III, possibly also the MPEG-2 and 2.5 extensions */
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/* 9 = IMA */
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/* 10 = AICA ADPCM */
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/* 11 = MS ADPCM */
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/* 12 = NGC DSP */
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/* 13 = 8bit unsingned PCM */
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/* 14 = PSX ADPCM (bad flagged) */
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/* ... others to come */
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switch (read_32bitLE(0x18,streamFile)) {
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case 0:
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coding = coding_PSX;
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break;
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case 1:
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coding = coding_XBOX;
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break;
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case 2:
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coding = coding_NGC_DTK;
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if (channel_count != 2) goto fail;
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break;
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case 3:
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coding = coding_PCM16BE;
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break;
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case 4:
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coding = coding_PCM16LE;
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break;
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case 5:
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coding = coding_PCM8;
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break;
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case 6:
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coding = coding_SDX2;
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break;
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case 7:
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coding = coding_DVI_IMA;
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break;
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#ifdef VGM_USE_MPEG
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case 8:
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/* we say MPEG-1 L3 here, but later find out exactly which */
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coding = coding_MPEG1_L3;
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break;
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#endif
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case 9:
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coding = coding_IMA;
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break;
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case 10:
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coding = coding_AICA;
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break;
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case 11:
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coding = coding_MSADPCM;
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break;
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case 12:
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coding = coding_NGC_DSP;
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break;
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case 13:
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coding = coding_PCM8_U_int;
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break;
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case 14:
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coding = coding_PSX_badflags;
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break;
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default:
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goto fail;
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}
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start_offset = read_32bitLE(0x1C,streamFile);
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header_size = read_32bitLE(0x20,streamFile);
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/* HACK to support old genh */
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if (header_size == 0) {
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start_offset = 0x800;
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header_size = 0x800;
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}
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/* check for audio data start past header end */
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if (header_size > start_offset) goto fail;
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interleave = read_32bitLE(0x8,streamFile);
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sample_rate = read_32bitLE(0xc,streamFile);
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loop_start = read_32bitLE(0x10,streamFile);
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loop_end = read_32bitLE(0x14,streamFile);
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coef[0] = read_32bitLE(0x24,streamFile);
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coef[1] = read_32bitLE(0x28,streamFile);
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dsp_interleave_type = read_32bitLE(0x2C,streamFile);
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coef_type = read_32bitLE(0x30,streamFile); /* 0 - normal coefs
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1 - splitted coefs (16byte rows) */
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coef_splitted[0] = read_32bitLE(0x34,streamFile);
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coef_splitted[1] = read_32bitLE(0x38,streamFile);
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//if (coding == coding_XBOX && channel_count != 2) goto fail;
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/* build the VGMSTREAM */
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vgmstream = allocate_vgmstream(channel_count,(loop_start!=-1));
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if (!vgmstream) goto fail;
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/* fill in the vital information */
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vgmstream->channels = channel_count;
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vgmstream->sample_rate = sample_rate;
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vgmstream->num_samples = loop_end;
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vgmstream->loop_start_sample = loop_start;
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vgmstream->loop_end_sample = loop_end;
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vgmstream->loop_flag = (loop_start != -1);
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switch (coding) {
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case coding_PCM8_U_int:
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vgmstream->layout_type=layout_none;
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break;
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case coding_PCM16LE:
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case coding_PCM16BE:
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case coding_PCM8:
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case coding_SDX2:
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case coding_PSX:
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case coding_PSX_badflags:
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case coding_DVI_IMA:
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case coding_IMA:
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case coding_AICA:
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vgmstream->interleave_block_size = interleave;
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if (channel_count > 1)
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{
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if (coding == coding_SDX2) {
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coding = coding_SDX2_int;
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vgmstream->coding_type = coding_SDX2_int;
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}
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if(vgmstream->interleave_block_size==0xffffffff)
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vgmstream->layout_type=layout_none;
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else {
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vgmstream->layout_type = layout_interleave;
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if(coding==coding_DVI_IMA)
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coding=coding_INT_DVI_IMA;
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if(coding==coding_IMA)
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coding=coding_INT_IMA;
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}
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} else {
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vgmstream->layout_type = layout_none;
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}
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break;
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case coding_MSADPCM:
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if (channel_count != 2) goto fail;
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vgmstream->interleave_block_size = interleave;
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vgmstream->layout_type = layout_none;
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break;
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case coding_XBOX:
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vgmstream->layout_type = layout_none;
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break;
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case coding_NGC_DTK:
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vgmstream->layout_type = layout_dtk_interleave;
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break;
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case coding_NGC_DSP:
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if (dsp_interleave_type == 0) {
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vgmstream->layout_type = layout_interleave;
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vgmstream->interleave_block_size = interleave;
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} else if (dsp_interleave_type == 1) {
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vgmstream->layout_type = layout_interleave_byte;
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vgmstream->interleave_block_size = interleave;
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} else if (dsp_interleave_type == 2) {
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vgmstream->layout_type = layout_none;
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}
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break;
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#ifdef VGM_USE_MPEG
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case coding_MPEG1_L3:
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vgmstream->layout_type = layout_mpeg;
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break;
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#endif
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}
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vgmstream->coding_type = coding;
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vgmstream->meta_type = meta_GENH;
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/* open the file for reading by each channel */
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{
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int i;
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int j;
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STREAMFILE * chstreamfile = NULL;
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for (i=0;i<channel_count;i++) {
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off_t chstart_offset = start_offset;
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switch (coding) {
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case coding_PSX:
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case coding_PSX_badflags:
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case coding_PCM16BE:
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case coding_PCM16LE:
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case coding_SDX2:
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case coding_SDX2_int:
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case coding_DVI_IMA:
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case coding_IMA:
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case coding_PCM8:
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case coding_PCM8_U_int:
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case coding_AICA:
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case coding_INT_DVI_IMA:
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case coding_INT_IMA:
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if (vgmstream->layout_type == layout_interleave) {
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if (interleave >= 512) {
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chstreamfile =
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streamFile->open(streamFile,filename,interleave);
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} else {
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if (!chstreamfile)
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chstreamfile =
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streamFile->open(streamFile,filename,STREAMFILE_DEFAULT_BUFFER_SIZE);
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}
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chstart_offset =
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start_offset+vgmstream->interleave_block_size*i;
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} else {
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chstreamfile =
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streamFile->open(streamFile,filename,
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STREAMFILE_DEFAULT_BUFFER_SIZE);
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}
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break;
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case coding_XBOX:
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case coding_MSADPCM:
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/* xbox's "interleave" is a lie, all channels start at same
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* offset */
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chstreamfile =
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streamFile->open(streamFile,filename,
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STREAMFILE_DEFAULT_BUFFER_SIZE);
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break;
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case coding_NGC_DTK:
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if (!chstreamfile)
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chstreamfile =
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streamFile->open(streamFile,filename,32*0x400);
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break;
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case coding_NGC_DSP:
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if (!chstreamfile)
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chstreamfile =
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streamFile->open(streamFile,filename,STREAMFILE_DEFAULT_BUFFER_SIZE);
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if (coef_type == 0) {
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for (j=0;j<16;j++) {
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vgmstream->ch[i].adpcm_coef[j] = read_16bitBE(coef[i]+j*2,streamFile);
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}
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} else if (coef_type == 1) {
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for (j=0;j<8;j++) {
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vgmstream->ch[i].adpcm_coef[j*2]=read_16bitBE(coef[i]+j*2,streamFile);
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vgmstream->ch[i].adpcm_coef[j*2+1]=read_16bitBE(coef_splitted[i]+j*2,streamFile);
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}
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}
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chstart_offset =start_offset+vgmstream->interleave_block_size*i;
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break;
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#ifdef VGM_USE_MPEG
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case coding_MPEG1_L3:
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if (!chstreamfile)
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chstreamfile =
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streamFile->open(streamFile,filename,MPEG_BUFFER_SIZE);
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break;
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#endif
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}
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if (!chstreamfile) goto fail;
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vgmstream->ch[i].streamfile = chstreamfile;
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vgmstream->ch[i].channel_start_offset=
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vgmstream->ch[i].offset=chstart_offset;
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}
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}
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#ifdef VGM_USE_MPEG
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if (coding == coding_MPEG1_L3) {
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int rc;
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off_t read_offset;
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data = calloc(1,sizeof(mpeg_codec_data));
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if (!data) goto mpeg_fail;
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data->m = mpg123_new(NULL,&rc);
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if (rc==MPG123_NOT_INITIALIZED) {
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if (mpg123_init()!=MPG123_OK) goto mpeg_fail;
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data->m = mpg123_new(NULL,&rc);
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if (rc!=MPG123_OK) goto mpeg_fail;
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} else if (rc!=MPG123_OK) {
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goto mpeg_fail;
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}
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mpg123_param(data->m,MPG123_REMOVE_FLAGS,MPG123_GAPLESS,0.0);
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if (mpg123_open_feed(data->m)!=MPG123_OK) {
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goto mpeg_fail;
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}
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/* check format */
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read_offset=0;
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do {
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size_t bytes_done;
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if (read_streamfile(data->buffer, start_offset+read_offset,
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MPEG_BUFFER_SIZE,vgmstream->ch[0].streamfile) !=
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MPEG_BUFFER_SIZE) goto mpeg_fail;
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read_offset+=1;
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rc = mpg123_decode(data->m,data->buffer,MPEG_BUFFER_SIZE,
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NULL,0,&bytes_done);
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if (rc != MPG123_OK && rc != MPG123_NEW_FORMAT &&
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rc != MPG123_NEED_MORE) goto mpeg_fail;
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} while (rc != MPG123_NEW_FORMAT);
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{
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long rate;
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int channels,encoding;
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struct mpg123_frameinfo mi;
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rc = mpg123_getformat(data->m,&rate,&channels,&encoding);
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if (rc != MPG123_OK) goto mpeg_fail;
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if (rate != vgmstream->sample_rate ||
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channels != vgmstream->channels ||
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encoding != MPG123_ENC_SIGNED_16) goto mpeg_fail;
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mpg123_info(data->m,&mi);
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if (mi.rate != vgmstream->sample_rate) goto mpeg_fail;
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if (mi.version == MPG123_1_0 && mi.layer == 1)
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vgmstream->coding_type = coding_MPEG1_L1;
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else if (mi.version == MPG123_1_0 && mi.layer == 2)
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vgmstream->coding_type = coding_MPEG1_L2;
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else if (mi.version == MPG123_1_0 && mi.layer == 3)
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vgmstream->coding_type = coding_MPEG1_L3;
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else if (mi.version == MPG123_2_0 && mi.layer == 1)
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vgmstream->coding_type = coding_MPEG2_L1;
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else if (mi.version == MPG123_2_0 && mi.layer == 2)
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vgmstream->coding_type = coding_MPEG2_L2;
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else if (mi.version == MPG123_2_0 && mi.layer == 3)
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vgmstream->coding_type = coding_MPEG2_L3;
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else if (mi.version == MPG123_2_5 && mi.layer == 1)
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vgmstream->coding_type = coding_MPEG25_L1;
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else if (mi.version == MPG123_2_5 && mi.layer == 2)
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vgmstream->coding_type = coding_MPEG25_L2;
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else if (mi.version == MPG123_2_5 && mi.layer == 3)
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vgmstream->coding_type = coding_MPEG25_L3;
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else goto mpeg_fail;
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}
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/* reinit, to ignore the reading we've done so far */
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mpg123_open_feed(data->m);
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vgmstream->codec_data = data;
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}
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#endif
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return vgmstream;
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/* clean up anything we may have opened */
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#ifdef VGM_USE_MPEG
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mpeg_fail:
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if (data) {
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mpg123_delete(data->m);
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free(data);
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}
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#endif
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fail:
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if (vgmstream) close_vgmstream(vgmstream);
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return NULL;
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}
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