export declare const DEFAULT_AVCC_HEADER_LENGTH = 4;
export interface NaluData {
    nalType: number;
    offset: number;
    length: number;
}
export declare function BitReaderHelper(buf: Uint8Array, bitPos: number, numBits: number): number;
export declare function GetUint16FromBufferBe(data: Uint8Array): number;
export declare function ParseNAL(data: Uint8Array): NaluData;
export declare function ParseH264NALs(dataBytes: Uint8Array | ArrayBuffer | undefined | null, avccHeaderLengthSize: number): NaluData[] | undefined;
export declare function ContainsNALUSliceIDR(dataBytes: Uint8Array | ArrayBuffer | undefined | null, avccHeaderLengthSize: number): boolean;
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