/**
 * SourceAdapter - Interface for data sources
 *
 * All data access in movi flows through this interface, enabling
 * unified handling of HTTP URLs and local Files.
 */
export interface SourceAdapter {
    /**
     * Get the total size of the source in bytes
     */
    getSize(): Promise<number>;
    /**
     * Read data from the source at the given offset
     * @param offset Byte offset to start reading from
     * @param length Number of bytes to read
     * @returns ArrayBuffer containing the requested data
     */
    read(offset: number, length: number): Promise<ArrayBuffer>;
    /**
     * Seek to a position (for sources that need state)
     * @param offset The byte offset to seek to
     * @returns The actual offset seeked to
     */
    seek(offset: number): number;
    /**
     * Get the current read position
     */
    getPosition(): number;
    /**
     * Close the source and release resources
     */
    close(): void;
    /**
     * Get a unique identifier for this source (used for caching)
     */
    getKey(): string;
    /**
     * The failure this source will not recover from, if it has had one — a
     * signed URL that has started answering 403, a file that has gone away.
     *
     * A read that fails reaches the demuxer as "invalid data", which is also
     * what one bad packet looks like, and a reader that treats the two alike
     * retries a source that is never going to answer. Optional: a source that
     * cannot fail this way simply does not have it.
     */
    getFatalError?(): Error | null;
    /**
     * Whether the server is refusing this source's requests right now — a
     * refusal already latched by getFatalError, or one still being retried.
     *
     * A refused range and a slow link both leave the buffer empty, and only the
     * second is a reason to change quality. Optional, like getFatalError.
     */
    isRefusing?(): boolean;
}
/**
 * Factory function type for creating source adapters
 */
export type SourceFactory = (config: SourceConfig) => Promise<SourceAdapter>;
import type { SourceConfig } from '../types';
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