387   Bitstream.prototype.available = function(bits) {  argument
388     return this.stream.available((bits + 8 - this.bitPosition) / 8);
391   Bitstream.prototype.advance = function(bits) {  argument
393     pos = this.bitPosition + bits;
398   Bitstream.prototype.rewind = function(bits) {  argument
400     pos = this.bitPosition - bits;
422   Bitstream.prototype.read = function(bits, signed) {  argument
424     if (bits === 0) {
427     mBits = bits + this.bitPosition;
429       a = ((this.stream.peekUInt8() << this.bitPosition) & 0xff) >>> (8 - bits);
431       a = ((this.stream.peekUInt16() << this.bitPosition) & 0xffff) >>> (16 - bits);
433       a = ((this.stream.peekUInt24() << this.bitPosition) & 0xffffff) >>> (24 - bits);
435       a = (this.stream.peekUInt32() << this.bitPosition) >>> (32 - bits);
444       a = Math.floor(a / Math.pow(2, 40 - this.bitPosition - bits));
450         if (a >>> (bits - 1)) {
451           a = ((1 << bits >>> 0) - a) * -1;
454         if (a / Math.pow(2, bits - 1) | 0) {
455           a = (Math.pow(2, bits) - a) * -1;
459     this.advance(bits);
463   Bitstream.prototype.peek = function(bits, signed) {  argument
465     if (bits === 0) {
468     mBits = bits + this.bitPosition;
470       a = ((this.stream.peekUInt8() << this.bitPosition) & 0xff) >>> (8 - bits);
472       a = ((this.stream.peekUInt16() << this.bitPosition) & 0xffff) >>> (16 - bits);
474       a = ((this.stream.peekUInt24() << this.bitPosition) & 0xffffff) >>> (24 - bits);
476       a = (this.stream.peekUInt32() << this.bitPosition) >>> (32 - bits);
485       a = Math.floor(a / Math.pow(2, 40 - this.bitPosition - bits));
491         if (a >>> (bits - 1)) {
492           a = ((1 << bits >>> 0) - a) * -1;
495         if (a / Math.pow(2, bits - 1) | 0) {
496           a = (Math.pow(2, bits) - a) * -1;
503   Bitstream.prototype.readLSB = function(bits, signed) {  argument
505     if (bits === 0) {
508     if (bits > 40) {
511     mBits = bits + this.bitPosition;
526       a %= Math.pow(2, bits);
528       a &= (1 << bits) - 1;
532         if (a >>> (bits - 1)) {
533           a = ((1 << bits >>> 0) - a) * -1;
536         if (a / Math.pow(2, bits - 1) | 0) {
537           a = (Math.pow(2, bits) - a) * -1;
541     this.advance(bits);
545   Bitstream.prototype.peekLSB = function(bits, signed) {  argument
547     if (bits === 0) {
550     if (bits > 40) {
553     mBits = bits + this.bitPosition;
568       a %= Math.pow(2, bits);
570       a &= (1 << bits) - 1;
574         if (a >>> (bits - 1)) {
575           a = ((1 << bits >>> 0) - a) * -1;
578         if (a / Math.pow(2, bits - 1) | 0) {
579           a = (Math.pow(2, bits) - a) * -1;