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author | Evgeny Zinoviev <me@ch1p.io> | 2023-09-13 09:34:49 +0300 |
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committer | Evgeny Sorokin <me@ch1p.io> | 2024-01-13 00:57:00 +0000 |
commit | 7058d0f5063dc9b065248d0a906cf874788caecf (patch) | |
tree | 26468a5d5a7f8c05804911b3fbf649d952bfd8f1 /localwebsite/htdocs/assets/h265webjs-dist/raw-parser.js | |
parent | 57955b596485ecce1ffd4395e23c078358cc5ddd (diff) |
save
Diffstat (limited to 'localwebsite/htdocs/assets/h265webjs-dist/raw-parser.js')
-rw-r--r-- | localwebsite/htdocs/assets/h265webjs-dist/raw-parser.js | 331 |
1 files changed, 0 insertions, 331 deletions
diff --git a/localwebsite/htdocs/assets/h265webjs-dist/raw-parser.js b/localwebsite/htdocs/assets/h265webjs-dist/raw-parser.js deleted file mode 100644 index edc91a3..0000000 --- a/localwebsite/htdocs/assets/h265webjs-dist/raw-parser.js +++ /dev/null @@ -1,331 +0,0 @@ -/********************************************************* - * 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 - }; - } - -} |