Java Code Examples for com.google.android.exoplayer2.util.ParsableBitArray#reset()
The following examples show how to use
com.google.android.exoplayer2.util.ParsableBitArray#reset() .
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Example 1
| Source File: Id3Decoder.java From MediaSDK with Apache License 2.0 | 5 votes |
|
private static MlltFrame decodeMlltFrame(ParsableByteArray id3Data, int frameSize) {
// See ID3v2.4.0 native frames subsection 4.6.
int mpegFramesBetweenReference = id3Data.readUnsignedShort();
int bytesBetweenReference = id3Data.readUnsignedInt24();
int millisecondsBetweenReference = id3Data.readUnsignedInt24();
int bitsForBytesDeviation = id3Data.readUnsignedByte();
int bitsForMillisecondsDeviation = id3Data.readUnsignedByte();
ParsableBitArray references = new ParsableBitArray();
references.reset(id3Data);
int referencesBits = 8 * (frameSize - 10);
int bitsPerReference = bitsForBytesDeviation + bitsForMillisecondsDeviation;
int referencesCount = referencesBits / bitsPerReference;
int[] bytesDeviations = new int[referencesCount];
int[] millisecondsDeviations = new int[referencesCount];
for (int i = 0; i < referencesCount; i++) {
int bytesDeviation = references.readBits(bitsForBytesDeviation);
int millisecondsDeviation = references.readBits(bitsForMillisecondsDeviation);
bytesDeviations[i] = bytesDeviation;
millisecondsDeviations[i] = millisecondsDeviation;
}
return new MlltFrame(
mpegFramesBetweenReference,
bytesBetweenReference,
millisecondsBetweenReference,
bytesDeviations,
millisecondsDeviations);
}
Example 2
| Source File: DtsUtil.java From MediaSDK with Apache License 2.0 | 5 votes |
|
private static ParsableBitArray getNormalizedFrameHeader(byte[] frameHeader) {
if (frameHeader[0] == FIRST_BYTE_BE) {
// The frame is already 16-bit mode, big endian.
return new ParsableBitArray(frameHeader);
}
// Data is not normalized, but we don't want to modify frameHeader.
frameHeader = Arrays.copyOf(frameHeader, frameHeader.length);
if (isLittleEndianFrameHeader(frameHeader)) {
// Change endianness.
for (int i = 0; i < frameHeader.length - 1; i += 2) {
byte temp = frameHeader[i];
frameHeader[i] = frameHeader[i + 1];
frameHeader[i + 1] = temp;
}
}
ParsableBitArray frameBits = new ParsableBitArray(frameHeader);
if (frameHeader[0] == (byte) (SYNC_VALUE_14B_BE >> 24)) {
// Discard the 2 most significant bits of each 16 bit word.
ParsableBitArray scratchBits = new ParsableBitArray(frameHeader);
while (scratchBits.bitsLeft() >= 16) {
scratchBits.skipBits(2);
frameBits.putInt(scratchBits.readBits(14), 14);
}
}
frameBits.reset(frameHeader);
return frameBits;
}
Example 3
| Source File: DtsUtil.java From TelePlus-Android with GNU General Public License v2.0 | 5 votes |
|
private static ParsableBitArray getNormalizedFrameHeader(byte[] frameHeader) {
if (frameHeader[0] == FIRST_BYTE_BE) {
// The frame is already 16-bit mode, big endian.
return new ParsableBitArray(frameHeader);
}
// Data is not normalized, but we don't want to modify frameHeader.
frameHeader = Arrays.copyOf(frameHeader, frameHeader.length);
if (isLittleEndianFrameHeader(frameHeader)) {
// Change endianness.
for (int i = 0; i < frameHeader.length - 1; i += 2) {
byte temp = frameHeader[i];
frameHeader[i] = frameHeader[i + 1];
frameHeader[i + 1] = temp;
}
}
ParsableBitArray frameBits = new ParsableBitArray(frameHeader);
if (frameHeader[0] == (byte) (SYNC_VALUE_14B_BE >> 24)) {
// Discard the 2 most significant bits of each 16 bit word.
ParsableBitArray scratchBits = new ParsableBitArray(frameHeader);
while (scratchBits.bitsLeft() >= 16) {
scratchBits.skipBits(2);
frameBits.putInt(scratchBits.readBits(14), 14);
}
}
frameBits.reset(frameHeader);
return frameBits;
}
Example 4
| Source File: DtsUtil.java From TelePlus-Android with GNU General Public License v2.0 | 5 votes |
|
private static ParsableBitArray getNormalizedFrameHeader(byte[] frameHeader) {
if (frameHeader[0] == FIRST_BYTE_BE) {
// The frame is already 16-bit mode, big endian.
return new ParsableBitArray(frameHeader);
}
// Data is not normalized, but we don't want to modify frameHeader.
frameHeader = Arrays.copyOf(frameHeader, frameHeader.length);
if (isLittleEndianFrameHeader(frameHeader)) {
// Change endianness.
for (int i = 0; i < frameHeader.length - 1; i += 2) {
byte temp = frameHeader[i];
frameHeader[i] = frameHeader[i + 1];
frameHeader[i + 1] = temp;
}
}
ParsableBitArray frameBits = new ParsableBitArray(frameHeader);
if (frameHeader[0] == (byte) (SYNC_VALUE_14B_BE >> 24)) {
// Discard the 2 most significant bits of each 16 bit word.
ParsableBitArray scratchBits = new ParsableBitArray(frameHeader);
while (scratchBits.bitsLeft() >= 16) {
scratchBits.skipBits(2);
frameBits.putInt(scratchBits.readBits(14), 14);
}
}
frameBits.reset(frameHeader);
return frameBits;
}
Example 5
| Source File: Id3Decoder.java From Telegram-FOSS with GNU General Public License v2.0 | 5 votes |
|
private static MlltFrame decodeMlltFrame(ParsableByteArray id3Data, int frameSize) {
// See ID3v2.4.0 native frames subsection 4.6.
int mpegFramesBetweenReference = id3Data.readUnsignedShort();
int bytesBetweenReference = id3Data.readUnsignedInt24();
int millisecondsBetweenReference = id3Data.readUnsignedInt24();
int bitsForBytesDeviation = id3Data.readUnsignedByte();
int bitsForMillisecondsDeviation = id3Data.readUnsignedByte();
ParsableBitArray references = new ParsableBitArray();
references.reset(id3Data);
int referencesBits = 8 * (frameSize - 10);
int bitsPerReference = bitsForBytesDeviation + bitsForMillisecondsDeviation;
int referencesCount = referencesBits / bitsPerReference;
int[] bytesDeviations = new int[referencesCount];
int[] millisecondsDeviations = new int[referencesCount];
for (int i = 0; i < referencesCount; i++) {
int bytesDeviation = references.readBits(bitsForBytesDeviation);
int millisecondsDeviation = references.readBits(bitsForMillisecondsDeviation);
bytesDeviations[i] = bytesDeviation;
millisecondsDeviations[i] = millisecondsDeviation;
}
return new MlltFrame(
mpegFramesBetweenReference,
bytesBetweenReference,
millisecondsBetweenReference,
bytesDeviations,
millisecondsDeviations);
}
Example 6
| Source File: DtsUtil.java From Telegram-FOSS with GNU General Public License v2.0 | 5 votes |
|
private static ParsableBitArray getNormalizedFrameHeader(byte[] frameHeader) {
if (frameHeader[0] == FIRST_BYTE_BE) {
// The frame is already 16-bit mode, big endian.
return new ParsableBitArray(frameHeader);
}
// Data is not normalized, but we don't want to modify frameHeader.
frameHeader = Arrays.copyOf(frameHeader, frameHeader.length);
if (isLittleEndianFrameHeader(frameHeader)) {
// Change endianness.
for (int i = 0; i < frameHeader.length - 1; i += 2) {
byte temp = frameHeader[i];
frameHeader[i] = frameHeader[i + 1];
frameHeader[i + 1] = temp;
}
}
ParsableBitArray frameBits = new ParsableBitArray(frameHeader);
if (frameHeader[0] == (byte) (SYNC_VALUE_14B_BE >> 24)) {
// Discard the 2 most significant bits of each 16 bit word.
ParsableBitArray scratchBits = new ParsableBitArray(frameHeader);
while (scratchBits.bitsLeft() >= 16) {
scratchBits.skipBits(2);
frameBits.putInt(scratchBits.readBits(14), 14);
}
}
frameBits.reset(frameHeader);
return frameBits;
}
Example 7
| Source File: Id3Decoder.java From Telegram with GNU General Public License v2.0 | 5 votes |
|
private static MlltFrame decodeMlltFrame(ParsableByteArray id3Data, int frameSize) {
// See ID3v2.4.0 native frames subsection 4.6.
int mpegFramesBetweenReference = id3Data.readUnsignedShort();
int bytesBetweenReference = id3Data.readUnsignedInt24();
int millisecondsBetweenReference = id3Data.readUnsignedInt24();
int bitsForBytesDeviation = id3Data.readUnsignedByte();
int bitsForMillisecondsDeviation = id3Data.readUnsignedByte();
ParsableBitArray references = new ParsableBitArray();
references.reset(id3Data);
int referencesBits = 8 * (frameSize - 10);
int bitsPerReference = bitsForBytesDeviation + bitsForMillisecondsDeviation;
int referencesCount = referencesBits / bitsPerReference;
int[] bytesDeviations = new int[referencesCount];
int[] millisecondsDeviations = new int[referencesCount];
for (int i = 0; i < referencesCount; i++) {
int bytesDeviation = references.readBits(bitsForBytesDeviation);
int millisecondsDeviation = references.readBits(bitsForMillisecondsDeviation);
bytesDeviations[i] = bytesDeviation;
millisecondsDeviations[i] = millisecondsDeviation;
}
return new MlltFrame(
mpegFramesBetweenReference,
bytesBetweenReference,
millisecondsBetweenReference,
bytesDeviations,
millisecondsDeviations);
}
Example 8
| Source File: DtsUtil.java From Telegram with GNU General Public License v2.0 | 5 votes |
|
private static ParsableBitArray getNormalizedFrameHeader(byte[] frameHeader) {
if (frameHeader[0] == FIRST_BYTE_BE) {
// The frame is already 16-bit mode, big endian.
return new ParsableBitArray(frameHeader);
}
// Data is not normalized, but we don't want to modify frameHeader.
frameHeader = Arrays.copyOf(frameHeader, frameHeader.length);
if (isLittleEndianFrameHeader(frameHeader)) {
// Change endianness.
for (int i = 0; i < frameHeader.length - 1; i += 2) {
byte temp = frameHeader[i];
frameHeader[i] = frameHeader[i + 1];
frameHeader[i + 1] = temp;
}
}
ParsableBitArray frameBits = new ParsableBitArray(frameHeader);
if (frameHeader[0] == (byte) (SYNC_VALUE_14B_BE >> 24)) {
// Discard the 2 most significant bits of each 16 bit word.
ParsableBitArray scratchBits = new ParsableBitArray(frameHeader);
while (scratchBits.bitsLeft() >= 16) {
scratchBits.skipBits(2);
frameBits.putInt(scratchBits.readBits(14), 14);
}
}
frameBits.reset(frameHeader);
return frameBits;
}
