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https://github.com/Eaglercraft-Archive/Eaglercraftx-1.8.8-src.git
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Update #37 - Touch support without userscript, many other feats
This commit is contained in:
lax1dude
468
sources/teavm/java/com/jcraft/jorbis/Info.java
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468
sources/teavm/java/com/jcraft/jorbis/Info.java
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@ -0,0 +1,468 @@
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/* -*-mode:java; c-basic-offset:2; indent-tabs-mode:nil -*- */
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/* JOrbis
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* Copyright (C) 2000 ymnk, JCraft,Inc.
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*
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* Written by: 2000 ymnk<ymnk@jcraft.com>
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*
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* Many thanks to
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* Monty <monty@xiph.org> and
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* The XIPHOPHORUS Company http://www.xiph.org/ .
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* JOrbis has been based on their awesome works, Vorbis codec.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public License
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* as published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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package com.jcraft.jorbis;
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import com.jcraft.jogg.*;
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public class Info {
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private static final int OV_EBADPACKET = -136;
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private static final int OV_ENOTAUDIO = -135;
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private static byte[] _vorbis = "vorbis".getBytes();
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private static final int VI_TIMEB = 1;
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// private static final int VI_FLOORB=1;
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private static final int VI_FLOORB = 2;
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// private static final int VI_RESB=1;
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private static final int VI_RESB = 3;
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private static final int VI_MAPB = 1;
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private static final int VI_WINDOWB = 1;
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public int version;
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public int channels;
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public int rate;
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// The below bitrate declarations are *hints*.
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// Combinations of the three values carry the following implications:
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//
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// all three set to the same value:
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// implies a fixed rate bitstream
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// only nominal set:
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// implies a VBR stream that averages the nominal bitrate. No hard
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// upper/lower limit
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// upper and or lower set:
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// implies a VBR bitstream that obeys the bitrate limits. nominal
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// may also be set to give a nominal rate.
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// none set:
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// the coder does not care to speculate.
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int bitrate_upper;
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int bitrate_nominal;
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int bitrate_lower;
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// Vorbis supports only short and long blocks, but allows the
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// encoder to choose the sizes
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int[] blocksizes = new int[2];
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// modes are the primary means of supporting on-the-fly different
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// blocksizes, different channel mappings (LR or mid-side),
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// different residue backends, etc. Each mode consists of a
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// blocksize flag and a mapping (along with the mapping setup
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int modes;
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int maps;
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int times;
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int floors;
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int residues;
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int books;
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int psys; // encode only
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InfoMode[] mode_param = null;
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int[] map_type = null;
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Object[] map_param = null;
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int[] time_type = null;
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Object[] time_param = null;
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int[] floor_type = null;
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Object[] floor_param = null;
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int[] residue_type = null;
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Object[] residue_param = null;
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StaticCodeBook[] book_param = null;
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PsyInfo[] psy_param = new PsyInfo[64]; // encode only
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// for block long/sort tuning; encode only
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int envelopesa;
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float preecho_thresh;
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float preecho_clamp;
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// used by synthesis, which has a full, alloced vi
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public void init() {
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rate = 0;
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}
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public void clear() {
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for (int i = 0; i < modes; i++) {
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mode_param[i] = null;
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}
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mode_param = null;
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for (int i = 0; i < maps; i++) { // unpack does the range checking
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FuncMapping.mapping_P[map_type[i]].free_info(map_param[i]);
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}
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map_param = null;
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for (int i = 0; i < times; i++) { // unpack does the range checking
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FuncTime.time_P[time_type[i]].free_info(time_param[i]);
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}
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time_param = null;
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for (int i = 0; i < floors; i++) { // unpack does the range checking
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FuncFloor.floor_P[floor_type[i]].free_info(floor_param[i]);
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}
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floor_param = null;
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for (int i = 0; i < residues; i++) { // unpack does the range checking
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FuncResidue.residue_P[residue_type[i]].free_info(residue_param[i]);
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}
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residue_param = null;
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// the static codebooks *are* freed if you call info_clear, because
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// decode side does alloc a 'static' codebook. Calling clear on the
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// full codebook does not clear the static codebook (that's our
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// responsibility)
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for (int i = 0; i < books; i++) {
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// just in case the decoder pre-cleared to save space
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if (book_param[i] != null) {
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book_param[i].clear();
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book_param[i] = null;
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}
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}
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// if(vi->book_param)free(vi->book_param);
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book_param = null;
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for (int i = 0; i < psys; i++) {
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psy_param[i].free();
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}
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}
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// Header packing/unpacking
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int unpack_info(Buffer opb) {
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version = opb.read(32);
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if (version != 0)
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return (-1);
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channels = opb.read(8);
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rate = opb.read(32);
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bitrate_upper = opb.read(32);
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bitrate_nominal = opb.read(32);
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bitrate_lower = opb.read(32);
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blocksizes[0] = 1 << opb.read(4);
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blocksizes[1] = 1 << opb.read(4);
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if ((rate < 1) || (channels < 1) || (blocksizes[0] < 8) || (blocksizes[1] < blocksizes[0])
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|| (opb.read(1) != 1)) {
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clear();
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return (-1);
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}
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return (0);
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}
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// all of the real encoding details are here. The modes, books,
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// everything
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int unpack_books(Buffer opb) {
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books = opb.read(8) + 1;
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if (book_param == null || book_param.length != books)
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book_param = new StaticCodeBook[books];
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for (int i = 0; i < books; i++) {
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book_param[i] = new StaticCodeBook();
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if (book_param[i].unpack(opb) != 0) {
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clear();
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return (-1);
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}
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}
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// time backend settings
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times = opb.read(6) + 1;
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if (time_type == null || time_type.length != times)
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time_type = new int[times];
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if (time_param == null || time_param.length != times)
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time_param = new Object[times];
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for (int i = 0; i < times; i++) {
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time_type[i] = opb.read(16);
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if (time_type[i] < 0 || time_type[i] >= VI_TIMEB) {
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clear();
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return (-1);
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}
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time_param[i] = FuncTime.time_P[time_type[i]].unpack(this, opb);
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if (time_param[i] == null) {
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clear();
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return (-1);
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}
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}
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// floor backend settings
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floors = opb.read(6) + 1;
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if (floor_type == null || floor_type.length != floors)
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floor_type = new int[floors];
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if (floor_param == null || floor_param.length != floors)
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floor_param = new Object[floors];
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for (int i = 0; i < floors; i++) {
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floor_type[i] = opb.read(16);
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if (floor_type[i] < 0 || floor_type[i] >= VI_FLOORB) {
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clear();
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return (-1);
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}
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floor_param[i] = FuncFloor.floor_P[floor_type[i]].unpack(this, opb);
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if (floor_param[i] == null) {
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clear();
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return (-1);
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}
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}
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// residue backend settings
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residues = opb.read(6) + 1;
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if (residue_type == null || residue_type.length != residues)
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residue_type = new int[residues];
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if (residue_param == null || residue_param.length != residues)
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residue_param = new Object[residues];
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for (int i = 0; i < residues; i++) {
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residue_type[i] = opb.read(16);
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if (residue_type[i] < 0 || residue_type[i] >= VI_RESB) {
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clear();
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return (-1);
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}
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residue_param[i] = FuncResidue.residue_P[residue_type[i]].unpack(this, opb);
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if (residue_param[i] == null) {
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clear();
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return (-1);
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}
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}
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// map backend settings
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maps = opb.read(6) + 1;
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if (map_type == null || map_type.length != maps)
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map_type = new int[maps];
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if (map_param == null || map_param.length != maps)
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map_param = new Object[maps];
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for (int i = 0; i < maps; i++) {
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map_type[i] = opb.read(16);
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if (map_type[i] < 0 || map_type[i] >= VI_MAPB) {
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clear();
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return (-1);
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}
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map_param[i] = FuncMapping.mapping_P[map_type[i]].unpack(this, opb);
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if (map_param[i] == null) {
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clear();
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return (-1);
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}
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}
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// mode settings
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modes = opb.read(6) + 1;
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if (mode_param == null || mode_param.length != modes)
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mode_param = new InfoMode[modes];
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for (int i = 0; i < modes; i++) {
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mode_param[i] = new InfoMode();
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mode_param[i].blockflag = opb.read(1);
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mode_param[i].windowtype = opb.read(16);
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mode_param[i].transformtype = opb.read(16);
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mode_param[i].mapping = opb.read(8);
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if ((mode_param[i].windowtype >= VI_WINDOWB) || (mode_param[i].transformtype >= VI_WINDOWB)
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|| (mode_param[i].mapping >= maps)) {
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clear();
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return (-1);
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}
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}
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if (opb.read(1) != 1) {
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clear();
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return (-1);
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}
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return (0);
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}
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// The Vorbis header is in three packets; the initial small packet in
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// the first page that identifies basic parameters, a second packet
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// with bitstream comments and a third packet that holds the
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// codebook.
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public int synthesis_headerin(Comment vc, Packet op) {
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Buffer opb = new Buffer();
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if (op != null) {
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opb.readinit(op.packet_base, op.packet, op.bytes);
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// Which of the three types of header is this?
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// Also verify header-ness, vorbis
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{
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byte[] buffer = new byte[6];
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int packtype = opb.read(8);
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opb.read(buffer, 6);
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if (buffer[0] != 'v' || buffer[1] != 'o' || buffer[2] != 'r' || buffer[3] != 'b' || buffer[4] != 'i'
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|| buffer[5] != 's') {
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// not a vorbis header
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return (-1);
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}
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switch (packtype) {
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case 0x01: // least significant *bit* is read first
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if (op.b_o_s == 0) {
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// Not the initial packet
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return (-1);
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}
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if (rate != 0) {
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// previously initialized info header
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return (-1);
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}
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return (unpack_info(opb));
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case 0x03: // least significant *bit* is read first
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if (rate == 0) {
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// um... we didn't get the initial header
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return (-1);
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}
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return (vc.unpack(opb));
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case 0x05: // least significant *bit* is read first
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if (rate == 0 || vc.vendor == null) {
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// um... we didn;t get the initial header or comments yet
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return (-1);
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}
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return (unpack_books(opb));
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default:
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// Not a valid vorbis header type
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// return(-1);
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break;
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}
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}
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}
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return (-1);
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}
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// pack side
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int pack_info(Buffer opb) {
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// preamble
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opb.write(0x01, 8);
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opb.write(_vorbis);
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// basic information about the stream
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opb.write(0x00, 32);
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opb.write(channels, 8);
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opb.write(rate, 32);
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opb.write(bitrate_upper, 32);
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opb.write(bitrate_nominal, 32);
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opb.write(bitrate_lower, 32);
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opb.write(Util.ilog2(blocksizes[0]), 4);
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opb.write(Util.ilog2(blocksizes[1]), 4);
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opb.write(1, 1);
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return (0);
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}
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int pack_books(Buffer opb) {
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opb.write(0x05, 8);
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opb.write(_vorbis);
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// books
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opb.write(books - 1, 8);
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for (int i = 0; i < books; i++) {
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if (book_param[i].pack(opb) != 0) {
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// goto err_out;
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return (-1);
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}
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}
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// times
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opb.write(times - 1, 6);
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for (int i = 0; i < times; i++) {
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opb.write(time_type[i], 16);
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FuncTime.time_P[time_type[i]].pack(this.time_param[i], opb);
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}
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// floors
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opb.write(floors - 1, 6);
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for (int i = 0; i < floors; i++) {
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opb.write(floor_type[i], 16);
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FuncFloor.floor_P[floor_type[i]].pack(floor_param[i], opb);
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}
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// residues
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opb.write(residues - 1, 6);
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for (int i = 0; i < residues; i++) {
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opb.write(residue_type[i], 16);
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FuncResidue.residue_P[residue_type[i]].pack(residue_param[i], opb);
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}
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// maps
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opb.write(maps - 1, 6);
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for (int i = 0; i < maps; i++) {
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opb.write(map_type[i], 16);
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FuncMapping.mapping_P[map_type[i]].pack(this, map_param[i], opb);
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}
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// modes
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opb.write(modes - 1, 6);
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for (int i = 0; i < modes; i++) {
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opb.write(mode_param[i].blockflag, 1);
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opb.write(mode_param[i].windowtype, 16);
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opb.write(mode_param[i].transformtype, 16);
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opb.write(mode_param[i].mapping, 8);
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}
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opb.write(1, 1);
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return (0);
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}
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public int blocksize(Packet op) {
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// codec_setup_info
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Buffer opb = new Buffer();
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int mode;
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opb.readinit(op.packet_base, op.packet, op.bytes);
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/* Check the packet type */
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if (opb.read(1) != 0) {
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/* Oops. This is not an audio data packet */
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return (OV_ENOTAUDIO);
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}
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{
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int modebits = 0;
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int v = modes;
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while (v > 1) {
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modebits++;
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v >>>= 1;
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}
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/* read our mode and pre/post windowsize */
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mode = opb.read(modebits);
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}
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if (mode == -1)
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return (OV_EBADPACKET);
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return (blocksizes[mode_param[mode].blockflag]);
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}
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public String toString() {
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return "version:" + version + ", channels:" + channels + ", rate:" + rate
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+ ", bitrate:" + bitrate_upper + "," + bitrate_nominal + ","
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+ bitrate_lower;
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}
|
||||
}
|
||||
Reference in New Issue
Block a user