lws: add h265webjs lib

1 files changed, 331 insertions, 0 deletions

diff --git a/localwebsite/htdocs/assets/h265webjs-dist/raw-parser.js b/localwebsite/htdocs/assets/h265webjs-dist/raw-parser.js
new file mode 100644
index 0000000..edc91a3
--- /dev/null
+++ b/localwebsite/htdocs/assets/h265webjs-dist/raw-parser.js
@@ -0,0 +1,331 @@
+/********************************************************* 
+ * LICENSE: LICENSE-Free_CN.MD
+ * 
+ * Author: Numberwolf - ChangYanlong
+ * QQ: 531365872
+ * QQ Group:925466059
+ * Wechat: numberwolf11
+ * Discord: numberwolf#8694
+ * E-Mail: porschegt23@foxmail.com
+ * Github: https://github.com/numberwolf/h265web.js
+ * 
+ * 作者: 小老虎(Numberwolf)(常炎隆)
+ * QQ: 531365872
+ * QQ群: 531365872
+ * 微信: numberwolf11
+ * Discord: numberwolf#8694
+ * 邮箱: porschegt23@foxmail.com
+ * 博客: https://www.jianshu.com/u/9c09c1e00fd1
+ * Github: https://github.com/numberwolf/h265web.js
+ * 
+ **********************************************************/
+/**
+ * codecImp Obj
+ * Video Raw 265 264 Parser
+ */
+const AfterGetNalThenMvLen  = 3;
+
+export default class RawParserModule {
+    constructor() {
+        this.frameList = [];
+        this.stream = null;
+    }
+
+    /*
+     *****************************************************
+     *                                                   *
+     *                                                   *
+     *                     HEVC Frames                   *
+     *                                                   *
+     *                                                   *
+     *****************************************************
+     */
+    pushFrameRet(streamPushInput) {
+        if (!streamPushInput || streamPushInput == undefined || streamPushInput == null) {
+            return false;
+        }
+
+        if (!this.frameList || this.frameList == undefined || this.frameList == null) {
+            this.frameList = [];
+            this.frameList.push(streamPushInput);
+            
+        } else {
+            this.frameList.push(streamPushInput);
+        }
+
+        return true;
+    }
+
+    nextFrame() {
+        if (!this.frameList && this.frameList == undefined || this.frameList == null && this.frameList.length < 1) {
+            return null;
+        }
+        return this.frameList.shift();
+    }
+
+    clearFrameRet() {
+        this.frameList = null;
+    }
+
+    /*
+     *****************************************************
+     *                                                   *
+     *                                                   *
+     *                     HEVC stream                   *
+     *                                                   *
+     *                                                   *
+     *****************************************************
+     */
+    setStreamRet(streamBufInput) {
+        this.stream = streamBufInput;
+    }
+
+    getStreamRet() {
+        return this.stream;
+    }
+
+    /**
+     * push stream nalu, for live, not vod
+     * @param Uint8Array
+     * @return bool
+     */
+    appendStreamRet(input) {
+        if (!input || input === undefined || input == null) {
+            return false;
+        }
+
+        if (!this.stream || this.stream === undefined || this.stream == null) {
+            this.stream = input;
+            return true;
+        }
+
+        let lenOld  = this.stream.length;
+        let lenPush = input.length;
+
+        let mergeStream = new Uint8Array(lenOld + lenPush);
+        mergeStream.set(this.stream, 0);
+        mergeStream.set(input, lenOld);
+
+        this.stream = mergeStream;
+
+        // let retList = this.nextNaluList(9000);
+        // if (retList !== false && retList.length > 0) {
+        //     this.frameList.push(...retList);
+        // }
+
+        for (let i = 0; i < 9999; i++) {
+            let nalBuf = this.nextNalu();
+            if (nalBuf !== false && nalBuf !== null && nalBuf !== undefined) {
+                this.frameList.push(nalBuf);
+            } else {
+                break;
+            }
+        }
+
+        return true;
+    }
+
+    /**
+     * sub nalu stream, and get Nalu unit
+     */
+    subBuf(startOpen, endOpen) { // sub block [m,n]
+        // nal
+        let returnBuf = new Uint8Array(
+            this.stream.subarray(startOpen, endOpen + 1)
+        );
+
+        // streamBuf sub
+        this.stream = new Uint8Array(
+            this.stream.subarray(endOpen + 1)
+        );
+
+        return returnBuf;
+    }
+
+    /**
+     * @param onceGetNalCount: once use get nal count, defult 1
+     * @return uint8array OR false
+     */
+    nextNalu(onceGetNalCount=1) {
+
+        // check params
+        if (this.stream == null || this.stream.length <= 4) {
+            return false;
+        }
+
+        // start nal pos
+        let startTag = -1;
+        // return nalBuf
+        let returnNalBuf = null;
+
+        for (let i = 0;i < this.stream.length; i++) {
+            if (i + 5 >= this.stream.length) {
+                return false;
+                // if (startTag == -1) {
+                //     return false;
+                // } else {
+                //     // 如果结尾不到判断的字节位置 就直接全量输出最后一个nal
+                //     returnNalBuf = this.subBuf(startTag, this.stream.length-1);
+                //     return returnNalBuf;
+                // }
+            }
+
+            // find nal
+            if (
+                (   // 0x00 00 01
+                    this.stream[i]        == 0
+                    && this.stream[i+1]   == 0
+                    && this.stream[i+2]   == 1
+                ) || 
+                (   // 0x00 00 00 01
+                    this.stream[i]        == 0
+                    && this.stream[i+1]   == 0
+                    && this.stream[i+2]   == 0
+                    && this.stream[i+3]   == 1
+                )
+            ) {
+                // console.log(
+                //     "enter find nal , now startTag:" + startTag 
+                //     + ", now pos:" + i
+                // );
+                let nowPos = i;
+                i += AfterGetNalThenMvLen; // 移出去
+                // begin pos
+                if (startTag == -1) {
+                    startTag = nowPos;
+                } else {
+                    if (onceGetNalCount <= 1) {
+                        // startCode - End
+                        // [startTag,nowPos)
+                        // console.log("[===>] last code hex is :" + this.stream[nowPos-1].toString(16))
+                        returnNalBuf = this.subBuf(startTag,nowPos-1);
+                        return returnNalBuf;
+                    } else {
+                        onceGetNalCount -= 1;
+                    }
+                }
+            }
+
+        } // end for
+
+        return false;
+    }
+
+    nextNalu2(onceGetNalCount=1) {
+        // check params
+        if (this.stream == null || this.stream.length <= 4) {
+            return false;
+        }
+
+        // start nal pos
+        let startTag = -1;
+        // return nalBuf
+        let returnNalBuf = null;
+
+        for (let i = 0;i < this.stream.length; i++) {
+            if (i + 5 >= this.stream.length) {
+                if (startTag == -1) {
+                    return false;
+                } else {
+                    // 如果结尾不到判断的字节位置 就直接全量输出最后一个nal
+                    returnNalBuf = this.subBuf(startTag,this.stream.length-1);
+                    return returnNalBuf;
+                }
+            }
+
+            // find nal
+            let is3BitHeader = this.stream.slice(i, i+3).join(' ') == '0 0 1';
+            let is4BitHeader = this.stream.slice(i, i+4).join(' ') == '0 0 0 1';
+            if (
+                is3BitHeader || 
+                is4BitHeader
+            ) {
+                let nowPos = i;
+                i += AfterGetNalThenMvLen; // 移出去
+                // begin pos
+                if (startTag == -1) {
+                    startTag = nowPos;
+                } else {
+                    if (onceGetNalCount <= 1) {
+                        // startCode - End
+                        // [startTag,nowPos)
+                        // console.log("[===>] last code hex is :" + this.stream[nowPos-1].toString(16))
+                        returnNalBuf = this.subBuf(startTag, nowPos-1);
+                        return returnNalBuf;
+                    } else {
+                        onceGetNalCount -= 1;
+                    }
+                }
+            }
+
+        } // end for
+        return false;
+    }
+
+
+    /**
+     * @brief sub nalu stream, and get Nalu unit
+     *          to parse: 
+     *           typedef struct {
+     *               uint32_t width;
+     *               uint32_t height;
+     *               uint8_t *dataY;
+     *               uint8_t *dataChromaB;
+     *               uint8_t *dataChromaR;
+     *           } ImageData;
+     * @params struct_ptr: Module.cwrap('getFrame', 'number', [])
+     * @return Dict
+     */
+    parseYUVFrameStruct(struct_ptr = null) { // sub block [m,n]
+        if (struct_ptr == null || !struct_ptr || struct_ptr == undefined) {
+            return null;
+        }
+
+        let width           = Module.HEAPU32[struct_ptr / 4];
+        let height          = Module.HEAPU32[struct_ptr / 4 + 1];
+        // let imgBufferPtr    = Module.HEAPU32[ptr / 4 + 2];
+        // let imageBuffer     = Module.HEAPU8.subarray(imgBufferPtr, imgBufferPtr + width * height * 3);
+        // console.log("width:",width," height:",height);
+
+        let sizeWH          = width * height;
+        // let imgBufferYPtr   = Module.HEAPU32[ptr / 4 + 2];
+        // let imageBufferY    = Module.HEAPU8.subarray(imgBufferYPtr, imgBufferYPtr + sizeWH);
+
+        // let imgBufferBPtr   = Module.HEAPU32[ptr/4+ 2 + sizeWH/4 + 1];
+        // let imageBufferB    = Module.HEAPU8.subarray(
+        //     imgBufferBPtr, 
+        //     imgBufferBPtr + sizeWH/4
+        // );
+        // console.log(imageBufferB);
+
+        // let imgBufferRPtr   = Module.HEAPU32[imgBufferBPtr + sizeWH/16 + 1];
+        // let imageBufferR    = Module.HEAPU8.subarray(
+        //     imgBufferRPtr, 
+        //     imgBufferRPtr + sizeWH/4
+        // );
+
+        let imgBufferPtr = Module.HEAPU32[struct_ptr / 4 + 1 + 1];
+
+        let imageBufferY = Module.HEAPU8.subarray(imgBufferPtr, imgBufferPtr + sizeWH);
+
+        let imageBufferB = Module.HEAPU8.subarray(
+            imgBufferPtr + sizeWH + 8, 
+            imgBufferPtr + sizeWH + 8 + sizeWH/4
+        );
+
+        let imageBufferR = Module.HEAPU8.subarray(
+            imgBufferPtr + sizeWH + 8 + sizeWH/4 + 8,
+            imgBufferPtr + sizeWH + 8 + sizeWH/2 + 8
+        );
+
+        return {
+            width           : width,
+            height          : height,
+            sizeWH          : sizeWH,
+            imageBufferY    : imageBufferY,
+            imageBufferB    : imageBufferB,
+            imageBufferR    : imageBufferR
+        };
+    }
+
+}