ExtractorUtil

@Pure
public static void checkContainerInput(boolean expression, @Nullable String message)

If expression is false, throws a container malformed ParserException with the given message. Otherwise, does nothing.

public static boolean peekFullyQuietly(
    ExtractorInput input,
    byte[] output,
    int offset,
    int length,
    boolean allowEndOfInput
)

Peeks data from input, respecting allowEndOfInput. Returns true if the peek is successful.

If allowEndOfInput=false then encountering the end of the input (whether before or after reading some data) will throw EOFException.

If allowEndOfInput=true then encountering the end of the input (even after reading some data) will return false.

This is slightly different to the behaviour of peekFully, where allowEndOfInput=true only returns false (and suppresses the exception) if the end of the input is reached before reading any data.

public static int peekToLength(ExtractorInput input, byte[] target, int offset, int length)

Peeks length bytes from the input peek position, or all the bytes to the end of the input if there was less than length bytes left.

If an exception is thrown, there is no guarantee on the peek position.

public static boolean readFullyQuietly(
    ExtractorInput input,
    byte[] output,
    int offset,
    int length
)

Equivalent to readFully except that it returns false instead of throwing an EOFException if the end of input is encountered without having fully satisfied the read.

public static boolean skipFullyQuietly(ExtractorInput input, int length)

Equivalent to skipFully except that it returns false instead of throwing an EOFException if the end of input is encountered without having fully satisfied the skip.