Initial working version

2022-12-22 20:22:22 +11:00
parent ce9675a1cc
commit ced7fa5092
902 changed files with 150252 additions and 0 deletions
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+import { IGetToken } from 'strtok3/lib/core';
+/**
+ * Opus ID Header interface
+ * Ref: https://wiki.xiph.org/OggOpus#ID_Header
+ */
+export interface IIdHeader {
+    /**
+     * Magic signature: "OpusHead" (64 bits)
+     */
+    magicSignature: string;
+    /**
+     * Version number (8 bits unsigned): 0x01 for this spec
+     */
+    version: number;
+    /**
+     * Channel count 'c' (8 bits unsigned): MUST be > 0
+     */
+    channelCount: number;
+    /**
+     * Pre-skip (16 bits unsigned, little endian)
+     */
+    preSkip: number;
+    /**
+     * Input sample rate (32 bits unsigned, little endian): informational only
+     */
+    inputSampleRate: number;
+    /**
+     * Output gain (16 bits, little endian, signed Q7.8 in dB) to apply when decoding
+     */
+    outputGain: number;
+    /**
+     * Channel mapping family (8 bits unsigned)
+     * -  0 = one stream: mono or L,R stereo
+     * -  1 = channels in vorbis spec order: mono or L,R stereo or ... or FL,C,FR,RL,RR,LFE, ...
+     * -  2..254 = reserved (treat as 255)
+     * -  255 = no defined channel meaning
+     */
+    channelMapping: number;
+}
+/**
+ * Opus ID Header parser
+ * Ref: https://wiki.xiph.org/OggOpus#ID_Header
+ */
+export declare class IdHeader implements IGetToken<IIdHeader> {
+    len: number;
+    constructor(len: number);
+    get(buf: any, off: any): IIdHeader;
+}