{"id":112816,"date":"2026-10-05T00:09:15","date_gmt":"2026-10-04T16:09:15","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/112816.html"},"modified":"2026-10-05T00:09:15","modified_gmt":"2026-10-04T16:09:15","slug":"%e9%80%82%e9%85%8d%e5%99%a8%e6%a8%a1%e5%bc%8f%e8%af%a6%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/112816.html","title":{"rendered":"\u9002\u914d\u5668\u6a21\u5f0f\u8be6\u89e3"},"content":{"rendered":"

\u76ee\u5f55<\/p>\n

\u524d\u8a00\u00a0 \u00a0 \u00a0 \u00a0\u00a0<\/p>\n

\u4e00\u3001\u7f1d\u5728\u63a5\u53e3\u4e0a<\/p>\n

\u4e8c\u3001\u56db\u4e2a\u89d2\u8272<\/p>\n

\u4e09\u3001\u5bf9\u8c61\u9002\u914d\u5668\u4e0e\u7c7b\u9002\u914d\u5668<\/p>\n

\u56db\u3001C++：\u628a\u4e24\u5bb6 SDK \u6536\u6210\u540c\u4e00\u79cd\u5e27\u6e90<\/p>\n

4.1 Target：\u64ad\u653e\u5668\u552f\u4e00\u8ba4\u8bc6\u7684\u7c7b\u578b<\/p>\n

4.2 Adaptee：\u5047\u5b9a\u6539\u4e0d\u4e86\u7684 SDK<\/p>\n

4.3 \u5bf9\u8c61\u9002\u914d\u5668<\/p>\n

4.4 \u64ad\u653e\u5668\u53ea\u8ba4\u63a5\u53e3<\/p>\n

4.5 \u7c7b\u9002\u914d\u5668\u5bf9\u7167<\/p>\n

4.6 \u8dd1\u51fa\u6765\u7684\u7ed3\u679c<\/p>\n

\u4e94\u3001Python：\u540c\u4e00\u6761\u7f1d，\u53e6\u4e00\u5957\u7c7b\u578b\u673a\u5236<\/p>\n

5.1 Protocol \u4e0e\u5bf9\u8c61\u9002\u914d\u5668<\/p>\n

5.2 \u7c7b\u9002\u914d\u5668\u5305\u4e0d\u8fdb\u73b0\u6210\u5b9e\u4f8b<\/p>\n

5.3 \u4e00\u4e2a\u51fd\u6570\u5c31\u5199\u6210\u95ed\u5305<\/p>\n

5.4 \u6807\u51c6\u5e93\u91cc\u7684\u6587\u672c\u9002\u914d\u5668<\/p>\n

\u516d\u3001\u7ffb\u8bd1\u53ef\u4ee5\u63a5\u6210\u94fe<\/p>\n

\u4e03\u3001\u6807\u51c6\u5e93\u65e9\u5c31\u5728\u7528\u8fd9\u79cd\u7ed3\u6784<\/p>\n

\u516b\u3001\u540c\u6837\u662f\u5305\u4e00\u5c42，\u95ee\u63a5\u53e3\u53d8\u4e86\u6ca1\u6709<\/p>\n

\u4e5d\u3001\u653e\u5728\u64ad\u653e\u94fe\u8def\u4e0a<\/p>\n

\u5341\u3001\u603b\u7ed3<\/p>\n

\n

\u524d\u8a00\u00a0 \u00a0 \u00a0 \u00a0\u00a0<\/h2>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u64ad\u653e\u5668\u3001\u7f16\u7801\u5668\u548c\u89c6\u89c9\u7b97\u6cd5\u5e0c\u671b\u201c\u4e0b\u4e00\u5e27\u201d\u957f\u5f97\u4e00\u6837：\u540c\u4e00\u4e2a\u51fd\u6570\u540d，\u540c\u4e00\u79cd\u50cf\u7d20\u5e03\u5c40，\u540c\u4e00\u79cd\u201c\u6ca1\u6709\u66f4\u591a\u6570\u636e\u201d\u7684\u8868\u793a\u3002\u91c7\u96c6\u5361\u5382\u5546\u4e0d\u6309\u8fd9\u4e2a\u4e60\u60ef\u8bbe\u8ba1\u3002\u5b83\u7684 SDK \u53eb pullBuffer，\u5410\u51fa RGB24\u3002\u9694\u58c1\u7f51\u7edc\u6444\u50cf\u673a\u7684 SDK \u53eb fetchGray，\u5410\u51fa\u7070\u5ea6\u3002\u4e24\u4efd\u5934\u6587\u4ef6\u901a\u5e38\u6539\u4e0d\u4e86，\u64ad\u653e\u5668\u91cc\u4e5f\u4e0d\u8be5\u6563\u843d if (vendor == …)\u3002<\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u9002\u914d\u5668\u6a21\u5f0f\u586b\u7684\u5c31\u662f\u8fd9\u6761\u7f1d\u3002\u5b83\u628a\u4e00\u4e2a\u5df2\u7ecf\u5b58\u5728\u7684\u7c7b，\u7ffb\u8bd1\u6210\u5ba2\u6237\u7aef\u6b63\u5728\u4f7f\u7528\u7684\u63a5\u53e3，\u8ba9\u4e24\u8fb9\u5728\u5404\u81ea\u90fd\u4e0d\u6539\u6e90\u7801\u7684\u524d\u63d0\u4e0b\u534f\u4f5c\u3002<\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u4e00\u53e5\u8bdd，\u9002\u914d\u5668\u8d1f\u8d23\u628a\u8c03\u7528\u65b9\u5f0f\u548c\u6570\u636e\u5f62\u72b6\u5bf9\u9f50\u3002\u91cd\u8fde\u3001\u6392\u961f\u3001\u6ee4\u955c\u3001\u89e3\u7801\u6d41\u7a0b\u7559\u5728\u9002\u914d\u5668\u5916\u9762\u3002<\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u672c\u6587\u7528\u540c\u4e00\u7ec4\u6570\u636e\u8d70\u901a C++ \u548c Python：\u4e00\u5f20 2\u00d72 \u7684 RGB24，\u9996\u50cf\u7d20\u662f\u7ea2 (255,0,0)；\u4e00\u5f20 2\u00d72 \u7684\u7070\u5ea6\u56fe，\u9996\u50cf\u7d20\u4eae\u5ea6\u662f 10\u3002\u7ffb\u8bd1\u4e4b\u540e，\u64ad\u653e\u5668\u90fd\u53ea\u770b\u89c1 RGBA\u3002\u5b8c\u6574\u7a0b\u5e8f\u5728 examples\/frame_adapter.cpp \u548c examples\/frame_adapter.py\u3002<\/p>\n

\u4e00\u3001\u7f1d\u5728\u63a5\u53e3\u4e0a<\/h2>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u5148\u628a\u4e09\u79cd\u89d2\u8272\u6446\u5728\u4e00\u8d77\u770b\u3002<\/p>\n

\"\"<\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u56fe 1：\u64ad\u653e\u5668\u53ea\u8ba4 IFrameSource::read \u548c RGBA；\u4e24\u5bb6 SDK \u7684\u65b9\u6cd5\u540d\u548c\u7f13\u51b2\u5e03\u5c40\u5404\u81ea\u4e00\u5957<\/p>\n

\u5ba2\u6237\u7aef\u5df2\u7ecf\u5199\u6b7b\u7684\u7ea6\u5b9a\u662f：<\/p>\n

\"\"<\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u91c7\u96c6\u5361\u63d0\u4f9b\u7684\u662f pullBuffer \u52a0\u4e00\u5757 RGB24\u3002\u7f51\u7edc\u6444\u50cf\u673a\u63d0\u4f9b\u7684\u662f fetchGray \u52a0\u4e00\u5757\u5355\u901a\u9053\u4eae\u5ea6\u3002\u80fd\u529b\u90fd\u662f\u201c\u7ed9\u51fa\u4e00\u5e45\u56fe\u201d，\u7b7e\u540d\u548c\u5185\u5b58\u5e03\u5c40\u5bf9\u4e0d\u4e0a\u3002<\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u8fd9\u79cd\u65f6\u5019\u6709\u4e09\u6761\u8def：<\/p>\n

(1). \u6539 SDK\u3002\u5382\u5546\u5934\u6587\u4ef6\u3001\u5df2\u7ecf\u53d1\u5e03\u7684\u52a8\u6001\u5e93，\u901a\u5e38\u8d70\u4e0d\u901a\u3002<\/p>\n

(2). \u6539\u64ad\u653e\u5668，\u8ba9\u5b83\u8ba4\u8bc6\u6bcf\u4e00\u79cd SDK\u3002\u6bcf\u63a5\u4e00\u5bb6\u8bbe\u5907，\u64ad\u653e\u5668\u5c31\u591a\u4e00\u6761\u5206\u652f，\u6d4b\u8bd5\u77e9\u9635\u8ddf\u7740\u6da8\u3002<\/p>\n

(3). \u5728\u4e2d\u95f4\u52a0\u4e00\u5c42\u7ffb\u8bd1\u3002\u64ad\u653e\u5668\u7ee7\u7eed\u53ea\u4f9d\u8d56\u81ea\u5df1\u7684\u63a5\u53e3，\u6bcf\u5bb6 SDK \u914d\u4e00\u4e2a\u9002\u914d\u5668\u3002<\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u7b2c\u4e09\u6761\u5c31\u662f\u9002\u914d\u5668\u3002\u5224\u65ad\u6807\u51c6\u4e5f\u5f88\u5177\u4f53：\u4e24\u8fb9\u8bed\u4e49\u90fd\u8fd8\u662f\u201c\u8bfb\u51fa\u4e0b\u4e00\u5e27\u201d，\u5dee\u522b\u4e3b\u8981\u5728\u540d\u5b57\u3001\u53c2\u6570\u987a\u5e8f\u3001\u5b57\u8282\u5e03\u5c40\u548c\u9519\u8bef\u7801\u3002\u8bed\u4e49\u8981\u662f\u5df2\u7ecf\u53d8\u4e86\u2014\u2014\u6bd4\u5982\u4e00\u8fb9\u7ed9\u7684\u662f\u7f16\u7801\u5305，\u4e00\u8fb9\u8981\u7684\u662f\u50cf\u7d20\u2014\u2014\u90a3\u4e00\u5c42\u5c31\u4e0d\u8be5\u53eb\u9002\u914d\u5668，\u89e3\u7801\u8be5\u5355\u72ec\u6210\u6a21\u5757\u3002<\/p>\n

\u4e8c\u3001\u56db\u4e2a\u89d2\u8272<\/h2>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u300a\u8bbe\u8ba1\u6a21\u5f0f\u300b\u91cc\u8fd9\u7ec4\u7ed3\u6784\u6709\u56db\u4e2a\u53c2\u4e0e\u8005\u3002\u653e\u5230\u4e0a\u9762\u7684\u573a\u666f\u91cc，\u5bf9\u5e94\u5173\u7cfb\u662f：<\/p>\n

\"\"<\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u534f\u4f5c\u8fc7\u7a0b\u5c31\u4e00\u53e5\u8bdd：\u5ba2\u6237\u7aef\u8c03\u7528\u9002\u914d\u5668\u7684 read，\u9002\u914d\u5668\u53bb\u8c03 SDK，\u628a\u7ed3\u679c\u88c5\u8fdb Frame \u518d\u4ea4\u56de\u53bb\u3002<\/p>\n

\"\"<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u56fe 2：\u4e24\u4e2a\u9002\u914d\u5668\u90fd\u5b9e\u73b0 IFrameSource，\u5404\u81ea\u6301\u6709\u4e00\u5bb6\u5df2\u7ecf\u521b\u5efa\u597d\u7684 SDK<\/p>\n

\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u56fe2\u662f\u5bf9\u8c61\u9002\u914d\u5668：\u9002\u914d\u5668\u662f\u4e00\u4e2a\u72ec\u7acb\u5bf9\u8c61，\u91cc\u9762\u653e\u7740\u88ab\u9002\u914d\u8005\u3002\u8fd9\u4e5f\u662f C++ \u548c Python \u91cc\u90fd\u5e94\u8be5\u9ed8\u8ba4\u91c7\u7528\u7684\u5f62\u5f0f\u3002\u64ad\u653e\u5668\u4f9d\u8d56\u7684\u662f\u63a5\u53e3，\u6240\u4ee5\u540c\u4e00\u5957 play() \u65e2\u80fd\u64ad\u91c7\u96c6\u5361，\u4e5f\u80fd\u64ad\u7f51\u7edc\u6444\u50cf\u673a\u3002\u6362\u8bbe\u5907\u65f6\u66ff\u6362\u9002\u914d\u5668，\u64ad\u653e\u5faa\u73af\u4e00\u4e2a\u5b57\u90fd\u4e0d\u7528\u6539\u3002<\/p>\n

\u4e09\u3001\u5bf9\u8c61\u9002\u914d\u5668\u4e0e\u7c7b\u9002\u914d\u5668<\/h2>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u5bf9\u8c61\u9002\u914d\u5668\u7528\u7ec4\u5408\u3002\u7c7b\u9002\u914d\u5668\u7528\u7ee7\u627f，\u5728 C++ \u91cc\u5c31\u662f\u8ba9\u9002\u914d\u5668\u540c\u65f6\u7ee7\u627f Target \u548c Adaptee\u3002<\/p>\n

\"\"<\/p>\n

\u56fe 3：\u5de6\u8fb9\u5305\u4f4f\u4e00\u4e2a\u5df2\u7ecf\u5b58\u5728\u7684 SDK \u5b9e\u4f8b；\u53f3\u8fb9\u7684\u9002\u914d\u5668\u81ea\u5df1\u5c31\u662f SDK \u7684\u5b50\u7c7b<\/span><\/p>\n

\"\"<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0\u5bf9\u8c61\u9002\u914d\u5668\u591a\u4e00\u6b21\u6307\u9488\u8df3\u8f6c，\u6362\u6765\u7684\u662f\u751f\u547d\u671f\u548c\u66ff\u6362\u81ea\u7531\u3002\u7c7b\u9002\u914d\u5668\u5c11\u4e00\u4e2a\u5bf9\u8c61，\u4ee3\u4ef7\u662f\u548c\u5177\u4f53 SDK \u7c7b\u710a\u5728\u4e00\u8d77\u3002\u5382\u5546 SDK \u5f88\u5c11\u4e3a\u4e86\u8ba9\u4f60\u8986\u76d6\u884c\u4e3a\u53bb\u7559\u865a\u51fd\u6570，\u7c7b\u9002\u914d\u5668\u90a3\u4e2a\u201c\u53ef\u4ee5\u6539\u5199\u201d\u7684\u4f18\u70b9\u5e38\u5e38\u7528\u4e0d\u4e0a\u3002<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0\u672c\u6587\u7684 C++ \u7c7b\u9002\u914d\u5668\u4f7f\u7528\u79c1\u6709\u7ee7\u627f\u3002\u516c\u6709\u591a\u7ee7\u627f\u4f1a\u8ba9\u9002\u914d\u5668\u540c\u65f6\u66b4\u9732 read \u548c pullBuffer，\u8c03\u7528\u65b9\u53ef\u4ee5\u7ed5\u8fc7\u7ffb\u8bd1，\u76f4\u63a5\u62ff\u8d70 RGB24\u3002\u79c1\u6709\u7ee7\u627f\u628a SDK \u7684\u65b9\u6cd5\u7559\u5728\u7c7b\u5185\u90e8，\u5bf9\u5916\u53ea\u5269\u4e0b IFrameSource\u3002\u9650\u5236\u8fd8\u5728：\u5b83\u4ecd\u7136\u4e0d\u80fd\u5305\u88c5\u4e00\u4e2a\u5df2\u7ecf\u6784\u9020\u597d\u7684 CaptureCardSdk\u3002<\/p>\n

\u56db\u3001C++：\u628a\u4e24\u5bb6 SDK \u6536\u6210\u540c\u4e00\u79cd\u5e27\u6e90<\/h2>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u793a\u4f8b\u6309 C++17 \u7f16\u5199，\u53ef\u4ee5\u7528\u4e0b\u9762\u4efb\u4e00\u547d\u4ee4\u7f16\u8bd1：<\/p>\n

g++ -std=c++17 -Wall -Wextra -o frame_adapter frame_adapter.cpp
\ncl \/nologo \/std:c++17 \/EHsc \/utf-8 \/W4 frame_adapter.cpp <\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0MSVC \u9700\u8981 \/utf-8，\u5426\u5219\u6e90\u6587\u4ef6\u91cc\u7684\u4e2d\u6587\u6ce8\u91ca\u53ef\u80fd\u89e6\u53d1 C4819\u3002\u4e0b\u9762\u662f\u5176\u4e2d\u7684\u6838\u5fc3\u7c7b\u578b，\u7070\u5ea6\u8f6c\u6362\u3001NetworkCamSdk \u548c main \u5728 examples\/frame_adapter.cpp \u91cc，\u4e0e\u8fd9\u91cc\u7684\u91c7\u96c6\u5361\u8def\u5f84\u540c\u4e00\u7ed3\u6784\u3002<\/p>\n

4.1 Target：\u64ad\u653e\u5668\u552f\u4e00\u8ba4\u8bc6\u7684\u7c7b\u578b<\/h3>\n

struct Frame {
\n int width = 0;
\n int height = 0;
\n std::vector<std::uint8_t> rgba; \/\/ width * height * 4
\n};<\/p>\n

class IFrameSource {
\npublic:
\n virtual ~IFrameSource() = default;
\n virtual bool read(Frame& out) = 0;
\n}; <\/p>\n

\u00a0 \u00a0 \u00a0\u00a0\u63a5\u53e3\u4e0a\u53ea\u6709\u4e00\u4e2a\u7eaf\u865a\u51fd\u6570\u3002\u5382\u5546\u540d\u3001SDK \u53e5\u67c4\u3001\u50cf\u7d20\u683c\u5f0f\u679a\u4e3e\u90fd\u4e0d\u51fa\u73b0\u5728 Target \u4e0a\u3002\u8fd9\u4e9b\u4fe1\u606f\u4e00\u65e6\u6f0f\u51fa\u53bb，\u64ad\u653e\u5668\u5c31\u4f1a\u91cd\u65b0\u957f\u51fa\u5206\u652f\u3002<\/p>\n

\u00a0 \u00a0 \u00a0\u00a0\u50cf\u7d20\u7ffb\u8bd1\u662f\u7eaf\u51fd\u6570，\u9002\u914d\u5668\u8c03\u7528\u5b83，\u800c\u4e0d\u662f\u628a\u5faa\u73af\u63c9\u8fdb\u7c7b\u7684\u6210\u5458\u91cc\u3002\u8fd9\u6837 RGB24 \u548c\u7070\u5ea6\u4e24\u6761\u8def\u5f84\u53ef\u4ee5\u5206\u5f00\u6d4b\u3002<\/p>\n

Frame rgb24ToRgba(const std::vector<std::uint8_t>& rgb24, int width, int height) {
\n if (width <= 0 || height <= 0) {
\n throw std::invalid_argument("invalid frame size");
\n }
\n const std::size_t pixels =
\n static_cast<std::size_t>(width) * static_cast<std::size_t>(height);
\n if (rgb24.size() != pixels * 3) {
\n throw std::invalid_argument("RGB24 buffer size mismatch");
\n }<\/p>\n

Frame out;
\n out.width = width;
\n out.height = height;
\n out.rgba.resize(pixels * 4);
\n for (std::size_t i = 0; i < pixels; ++i) {
\n out.rgba[i * 4 + 0] = rgb24[i * 3 + 0];
\n out.rgba[i * 4 + 1] = rgb24[i * 3 + 1];
\n out.rgba[i * 4 + 2] = rgb24[i * 3 + 2];
\n out.rgba[i * 4 + 3] = 255;
\n }
\n return out;
\n} <\/p>\n

\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0grayToRgba \u540c\u6784：\u6bcf\u4e2a\u4eae\u5ea6\u590d\u5236\u5230 R\u3001G\u3001B，Alpha \u4ecd\u662f 255\u3002\u5c3a\u5bf8\u4e0d\u5408\u6cd5\u3001\u7f13\u51b2\u957f\u5ea6\u548c\u5bbd\u9ad8\u4e0d\u7b26，\u5c5e\u4e8e\u8c03\u7528\u5951\u7ea6\u88ab\u7834\u574f，\u7528\u5f02\u5e38；\u201c\u8fd9\u6b21\u6ca1\u6709\u5e27\u201d\u5c5e\u4e8e\u6b63\u5e38\u7684\u6d41\u7ed3\u675f，\u7528 false\u3002\u4e24\u79cd\u5931\u8d25\u4e0d\u8981\u6df7\u6210\u540c\u4e00\u4e2a\u8fd4\u56de\u503c\u3002<\/p>\n

4.2 Adaptee：\u5047\u5b9a\u6539\u4e0d\u4e86\u7684 SDK<\/h3>\n

\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u793a\u4f8b\u91cc\u7684 SDK \u7528\u5185\u5b58\u4e2d\u7684\u4e00\u5e45\u56fe\u6a21\u62df\u8bbe\u5907，\u907f\u514d\u6587\u7ae0\u4f9d\u8d56\u771f\u5b9e\u91c7\u96c6\u5361\u3002\u7ffb\u8bd1\u7ed3\u6784\u4e0e\u63a5\u771f\u8bbe\u5907\u65f6\u76f8\u540c：\u9002\u914d\u5668\u4e0d\u5173\u5fc3\u6570\u636e\u4ece\u54ea\u6765，\u53ea\u5173\u5fc3\u51fd\u6570\u540d\u548c\u7f13\u51b2\u5e03\u5c40\u3002<\/p>\n

class CaptureCardSdk {
\npublic:
\n CaptureCardSdk() {
\n frames_.push_back(Raw{
\n 2, 2,
\n {255, 0, 0, 0, 255, 0, 0, 0, 255, 255, 255, 255},
\n });
\n }<\/p>\n

bool pullBuffer(std::vector<std::uint8_t>& rgb24, int& width, int& height) {
\n if (index_ >= frames_.size()) {
\n return false;
\n }
\n const Raw& raw = frames_[index_++];
\n width = raw.width;
\n height = raw.height;
\n rgb24 = raw.rgb24;
\n return true;
\n }<\/p>\n

private:
\n struct Raw {
\n int width;
\n int height;
\n std::vector<std::uint8_t> rgb24;
\n };<\/p>\n

std::vector<Raw> frames_;
\n std::size_t index_ = 0;
\n}; <\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0NetworkCamSdk::fetchGray \u7684\u5f62\u72b6\u4e00\u6837，\u7f13\u51b2\u6362\u6210 {10, 20, 30, 40}\u3002\u4e24\u5bb6 SDK \u751a\u81f3\u8fde\u201c\u6ca1\u6709\u5e27\u201d\u90fd\u5df2\u7ecf\u7528 bool \u8868\u793a\u3002\u771f\u5b9e\u73b0\u573a\u7ecf\u5e38\u4e0d\u662f\u8fd9\u6837，\u9519\u8bef\u7801\u8981\u5728\u9002\u914d\u5668\u8fb9\u754c\u6536\u53e3：<\/p>\n

\/\/ \u793a\u610f：\u5382\u5546\u7528\u9519\u8bef\u7801\u65f6，Target \u4ecd\u7136\u53ea\u770b\u89c1 true \/ false \/ \u5f02\u5e38
\nbool CaptureCardAdapter::read(Frame& out) {
\n int code = sdk_.pullBuffer(rgb24, width, height);
\n if (code == CaptureCardSdk::kEof) {
\n return false;
\n }
\n if (code != CaptureCardSdk::kOk) {
\n throw SdkError(code);
\n }
\n out = rgb24ToRgba(rgb24, width, height);
\n return true;
\n} <\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u64ad\u653e\u5668\u4e0d\u5305\u542b <vendor\/capture_card.h>，\u4e5f\u5c31\u4e0d\u4f1a\u51fa\u73b0\u5382\u5546\u9519\u8bef\u7801\u3002<\/p>\n

4.3 \u5bf9\u8c61\u9002\u914d\u5668<\/h3>\n

class CaptureCardAdapter : public IFrameSource {
\npublic:
\n explicit CaptureCardAdapter(CaptureCardSdk& sdk) : sdk_(sdk) {}<\/p>\n

bool read(Frame& out) override {
\n std::vector<std::uint8_t> rgb24;
\n int width = 0;
\n int height = 0;
\n if (!sdk_.pullBuffer(rgb24, width, height)) {
\n return false;
\n }
\n out = rgb24ToRgba(rgb24, width, height);
\n return true;
\n }<\/p>\n

private:
\n CaptureCardSdk& sdk_;
\n}; <\/p>\n

\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0NetworkCamAdapter \u53ea\u628a pullBuffer \u6362\u6210 fetchGray，\u628a rgb24ToRgba \u6362\u6210 grayToRgba\u3002<\/p>\n

\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u8fd9\u91cc\u7528\u5f15\u7528，\u662f\u56e0\u4e3a main \u540c\u65f6\u62e5\u6709 SDK \u548c\u9002\u914d\u5668，\u5f15\u7528\u4e0d\u5ef6\u957f\u5bf9\u65b9\u7684\u751f\u547d\u671f\u3002\u9002\u914d\u5668\u82e5\u6bd4 SDK \u6d3b\u5f97\u4e45，\u5c31\u662f\u60ac\u7a7a\u5f15\u7528\u3002\u9002\u914d\u5668\u9700\u8981\u72ec\u5360\u8bbe\u5907\u65f6，\u6539\u6210\u6301\u6709 std::unique_ptr<CaptureCardSdk>，\u5728\u6784\u9020\u51fd\u6570\u91cc std::move \u8fdb\u6765\u3002<\/p>\n

\"\"<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u56fe 4：\u64ad\u653e\u5668\u6ca1\u6709\u76f4\u63a5\u78b0\u5230 pullBuffer，RGB24 \u5230 RGBA \u7684\u8f6c\u6362\u53d1\u751f\u5728\u9002\u914d\u5668\u5185\u90e8<\/p>\n

4.4 \u64ad\u653e\u5668\u53ea\u8ba4\u63a5\u53e3<\/h3>\n

void playFrames(const std::function<bool(Frame&)>& read, const std::string& label) {
\n std::cout << label << "\\\\n";
\n Frame frame;
\n int count = 0;
\n while (read(frame)) {
\n ++count;
\n std::cout << " " << frame.width << "x" << frame.height << " rgba0=("
\n << static_cast<int>(frame.rgba.at(0)) << ","
\n << static_cast<int>(frame.rgba.at(1)) << ","
\n << static_cast<int>(frame.rgba.at(2)) << ","
\n << static_cast<int>(frame.rgba.at(3)) << ")\\\\n";
\n }
\n std::cout << " frames=" << count << " eof\\\\n";
\n}<\/p>\n

void play(IFrameSource& source, const std::string& label) {
\n playFrames([&source](Frame& frame) { return source.read(frame); }, label);
\n} <\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0play \u7684\u53c2\u6570\u7c7b\u578b\u662f IFrameSource&\u3002\u91c7\u96c6\u5361\u9002\u914d\u5668\u3001\u7f51\u7edc\u6444\u50cf\u673a\u9002\u914d\u5668\u3001\u6d4b\u8bd5\u7528\u7684\u5047\u5e27\u6e90，\u8d70\u7684\u662f\u540c\u4e00\u4e2a\u51fd\u6570\u3002<\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Target \u4e0a\u5982\u679c\u771f\u7684\u53ea\u6709\u4e00\u4e2a\u64cd\u4f5c，\u53ef\u4ee5\u4e0d\u58f0\u660e\u7c7b，\u76f4\u63a5\u628a\u7ffb\u8bd1\u5199\u6210 lambda，\u4ea4\u7ed9 playFrames：<\/p>\n

NetworkCamSdk camFn;
\nplayFrames(
\n [&camFn](Frame& out) {
\n std::vector<std::uint8_t> gray;
\n int width = 0;
\n int height = 0;
\n if (!camFn.fetchGray(gray, width, height)) {
\n return false;
\n }
\n out = grayToRgba(gray, width, height);
\n return true;
\n },
\n "function adapter \/ network"); <\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u7c7b\u5f62\u5f0f\u7684\u9002\u914d\u5668\u4ecd\u7136\u6709\u5b83\u7684\u4f4d\u7f6e：Target \u4f1a\u589e\u957f\u6210\u4e00\u7ec4\u65b9\u6cd5\u3001\u9002\u914d\u5668\u8981\u4fdd\u5b58\u683c\u5f0f\u534f\u5546\u7684\u7ed3\u679c，\u6216\u8005\u8c03\u7528\u65b9\u5df2\u7ecf\u5728\u7528 IFrameSource* \u505a\u591a\u6001\u5bb9\u5668\u3002\u53ea\u6709\u4e00\u4e2a\u51fd\u6570\u8981\u7ffb\u8bd1\u65f6，std::function \u6216\u51fd\u6570\u6a21\u677f\u66f4\u77ed\u3002<\/p>\n

4.5 \u7c7b\u9002\u914d\u5668\u5bf9\u7167<\/h3>\n

class CaptureCardClassAdapter : public IFrameSource, private CaptureCardSdk {
\npublic:
\n bool read(Frame& out) override {
\n std::vector<std::uint8_t> rgb24;
\n int width = 0;
\n int height = 0;
\n if (!pullBuffer(rgb24, width, height)) {
\n return false;
\n }
\n out = rgb24ToRgba(rgb24, width, height);
\n return true;
\n }
\n}; <\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0pullBuffer \u6765\u81ea\u57fa\u7c7b，\u4e0d\u662f\u6765\u81ea\u6210\u5458\u3002\u8c03\u7528\u65b9\u5199 classAdapter.pullBuffer(…) \u4f1a\u7f16\u8bd1\u5931\u8d25，\u56e0\u4e3a\u7ee7\u627f\u662f\u79c1\u6709\u7684\u3002\u4e0e\u6b64\u540c\u65f6，\u4f60\u4e5f\u65e0\u6cd5\u5199\u51fa CaptureCardClassAdapter adapter(alreadyOpenedCard)：\u8fd9\u4e2a\u7c7b\u6ca1\u6709\u53ef\u4ee5\u63a5\u6536\u5916\u90e8 SDK \u7684\u6784\u9020\u51fd\u6570，\u5b83\u5185\u90e8\u90a3\u53f0\u201c\u91c7\u96c6\u5361\u201d\u662f\u57fa\u7c7b\u5b50\u5bf9\u8c61\u3002<\/p>\n

4.6 \u8dd1\u51fa\u6765\u7684\u7ed3\u679c<\/h3>\n

object adapter \/ capture
\n 2×2 rgba0=(255,0,0,255)
\n frames=1 eof
\nobject adapter \/ network
\n 2×2 rgba0=(10,10,10,255)
\n frames=1 eof
\nclass adapter \/ capture
\n 2×2 rgba0=(255,0,0,255)
\n frames=1 eof
\nfunction adapter \/ network
\n 2×2 rgba0=(10,10,10,255)
\n frames=1 eof <\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u56db\u6761\u8def\u5f84\u7684\u9996\u50cf\u7d20\u90fd\u7b26\u5408\u9884\u671f：RGB24 \u7684\u7ea2\u8865\u4e0a Alpha \u6210\u4e3a (255,0,0,255)，\u7070\u5ea6 10 \u94fa\u6210 (10,10,10,255)\u3002\u7b2c\u4e8c\u5e27\u4e0d\u5b58\u5728，\u7edf\u4e00\u6253\u5370 eof\u3002<\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u64ad\u653e\u5668\u8981\u5355\u6d4b\u65f6，\u518d\u63d0\u4f9b\u4e00\u4e2a\u4e0d\u78b0\u786c\u4ef6\u7684 Target \u5b9e\u73b0\u5373\u53ef：<\/p>\n

class FakeSource : public IFrameSource {
\npublic:
\n explicit FakeSource(std::vector<Frame> frames) : frames_(std::move(frames)) {}<\/p>\n

bool read(Frame& out) override {
\n if (index_ >= frames_.size()) {
\n return false;
\n }
\n out = frames_[index_++];
\n return true;
\n }<\/p>\n

private:
\n std::vector<Frame> frames_;
\n std::size_t index_ = 0;
\n}; <\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0\u8fd9\u6bb5\u793a\u610f\u9700\u8981 <utility> \u91cc\u7684 std::move\u3002play(fake, "test") \u548c play(cardAdapter, "device") \u662f\u540c\u4e00\u6761\u8c03\u7528\u94fe\u3002\u9002\u914d\u5668\u628a\u8bbe\u5907\u5dee\u5f02\u5173\u5728\u64ad\u653e\u5668\u5916\u9762，\u6d4b\u8bd5\u5c31\u53ef\u4ee5\u53ea\u6784\u9020 Frame\u3002<\/p>\n

\u4e94\u3001Python：\u540c\u4e00\u6761\u7f1d，\u53e6\u4e00\u5957\u7c7b\u578b\u673a\u5236<\/h2>\n

\u00a0 \u00a0\u00a0 \u00a0Python \u6ca1\u6709 C++ \u90a3\u79cd\u5fc5\u987b\u7ee7\u627f\u624d\u80fd\u6ee1\u8db3\u63a5\u53e3\u7684\u8981\u6c42\u3002typing.Protocol \u505a\u7684\u662f\u7ed3\u6784\u5339\u914d：\u8c01\u6709\u7b26\u5408\u7b7e\u540d\u7684 read，\u8c01\u5c31\u80fd\u4f20\u7ed9 play\u3002\u9002\u914d\u5668\u5728\u8fd9\u91cc\u4f9d\u7136\u6709\u7528，\u56e0\u4e3a\u5bf9\u4e0d\u4e0a\u7684\u662f\u65b9\u6cd5\u540d\u548c\u5b57\u8282\u5e03\u5c40，\u4e0d\u662f\u201c\u7f3a\u4e00\u4e2a\u57fa\u7c7b\u201d\u3002<\/p>\n

\u00a0 \u00a0\u00a0 \u00a0\u6570\u636e\u4e0e C++ \u793a\u4f8b\u76f8\u540c\u3002\u5b8c\u6574\u811a\u672c\u662f examples\/frame_adapter.py，\u76f4\u63a5 python frame_adapter.py\u3002<\/p>\n

5.1 Protocol \u4e0e\u5bf9\u8c61\u9002\u914d\u5668<\/h3>\n

@dataclass(frozen=True)
\nclass Frame:
\n width: int
\n height: int
\n rgba: bytes # width * height * 4<\/p>\n

class FrameSource(Protocol):
\n def read(self) -> Optional[Frame]:
\n …<\/p>\n

class CaptureCardAdapter:
\n def __init__(self, sdk: CaptureCardSdk) -> None:
\n self._sdk = sdk<\/p>\n

def read(self) -> Optional[Frame]:
\n pulled = self._sdk.pull_buffer()
\n if pulled is None:
\n return None
\n rgb24, width, height = pulled
\n return rgb24_to_rgba(rgb24, width, height) <\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 CaptureCardAdapter \u6ca1\u6709\u7ee7\u627f\u4efb\u4f55\u5e27\u6e90\u57fa\u7c7b\u3002\u5b83\u6709 read，play(source: FrameSource) \u5c31\u63a5\u53d7\u5b83\u3002SDK \u8fd4\u56de None \u8868\u793a\u6ca1\u6709\u66f4\u591a\u5e27，\u9002\u914d\u5668\u4fdd\u6301\u8fd9\u4e2a\u7ea6\u5b9a，\u4e0d\u628a None \u7ffb\u8bd1\u6210\u7a7a Frame\u3002\u7a7a Frame \u548c\u201c\u6d41\u7ed3\u675f\u201d\u662f\u4e24\u4ef6\u4e0d\u540c\u7684\u4e8b\u3002<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 NetworkCamAdapter \u540c\u6837\u5305\u4f4f\u4e00\u4e2a\u5df2\u7ecf\u5b58\u5728\u7684 NetworkCamSdk\u3002\u5bf9\u8c61\u9002\u914d\u5668\u5728 Python \u91cc\u7684\u610f\u4e49\u548c C++ \u4e00\u6837：\u8bbe\u5907\u5f80\u5f80\u662f\u5148\u6253\u5f00\u7684，\u9002\u914d\u5668\u540e\u5305\u4e0a\u53bb\u3002<\/p>\n

5.2 \u7c7b\u9002\u914d\u5668\u5305\u4e0d\u8fdb\u73b0\u6210\u5b9e\u4f8b<\/h3>\n

class CaptureCardClassAdapter(CaptureCardSdk):
\n def read(self) -> Optional[Frame]:
\n pulled = self.pull_buffer()
\n if pulled is None:
\n return None
\n rgb24, width, height = pulled
\n return rgb24_to_rgba(rgb24, width, height) <\/p>\n

\u00a0\u00a0\u00a0 \u00a0\u00a0 \u00a0\u8fd9\u6bb5\u80fd\u8dd1，play(CaptureCardClassAdapter(), …) \u7684\u9996\u50cf\u7d20\u540c\u6837\u662f (255, 0, 0, 255)\u3002\u5b83\u548c C++ \u79c1\u6709\u7ee7\u627f\u6709\u4e00\u5904\u91cd\u8981\u5dee\u522b：Python \u6ca1\u6709\u79c1\u6709\u7ee7\u627f，pull_buffer \u4ecd\u7136\u662f\u516c\u5f00\u65b9\u6cd5\u3002\u62ff\u5230\u7c7b\u9002\u914d\u5668\u7684\u4eba\u53ef\u4ee5\u76f4\u63a5\u8bfb RGB24，\u7ffb\u8bd1\u5c42\u5c31\u88ab\u7ed5\u5f00\u4e86\u3002<\/p>\n

\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u6240\u4ee5\u5728 Python \u91cc，\u53ea\u8981\u76ee\u6807\u662f\u201c\u5bf9\u5916\u53ea\u7559 read\u201d，\u5c31\u7528\u7ec4\u5408，\u628a SDK \u653e\u5728 self._sdk\u3002\u4e0b\u5212\u7ebf\u53ea\u662f\u7ea6\u5b9a，\u771f\u6b63\u9632\u6f0f\u63a5\u53e3\u7684\u529e\u6cd5\u662f\u4e0d\u628a\u88ab\u9002\u914d\u8005\u7684\u65b9\u6cd5\u8f6c\u53d1\u51fa\u53bb\u3002<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0\u4e0b\u9762\u8fd9\u79cd\u5199\u6cd5\u4f1a\u628a\u7f1d\u91cd\u65b0\u6495\u5f00：<\/p>\n

def __getattr__(self, name):
\n return getattr(self._sdk, name) <\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u64ad\u653e\u5668\u4e00\u65e6\u80fd\u901a\u8fc7\u9002\u914d\u5668\u6478\u5230 pull_buffer，\u540e\u9762\u7684\u4ee3\u7801\u5c31\u4f1a\u4f9d\u8d56\u5382\u5546\u7b7e\u540d\u3002\u9002\u914d\u5668\u8981\u663e\u5f0f\u5199\u51fa\u81ea\u5df1\u627f\u8bfa\u7684\u90a3\u51e0\u4e2a\u65b9\u6cd5\u3002<\/p>\n

5.3 \u4e00\u4e2a\u51fd\u6570\u5c31\u5199\u6210\u95ed\u5305<\/h3>\n

def adapt_network_cam(sdk: NetworkCamSdk) -> Callable[[], Optional[Frame]]:
\n def read() -> Optional[Frame]:
\n fetched = sdk.fetch_gray()
\n if fetched is None:
\n return None
\n gray, width, height = fetched
\n return gray_to_rgba(gray, width, height)<\/p>\n

return read <\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u95ed\u5305\u6355\u83b7\u7684\u662f\u90a3\u53f0\u5df2\u7ecf\u6253\u5f00\u7684\u6444\u50cf\u673a，\u548c\u5bf9\u8c61\u9002\u914d\u5668\u6301\u6709 SDK \u662f\u540c\u4e00\u4ef6\u4e8b，\u53ea\u662f\u6ca1\u6709\u518d\u58f0\u660e\u4e00\u4e2a\u7c7b\u3002Target \u4ee5\u540e\u82e5\u8981\u52a0 stop()\u3001format()，\u518d\u6536\u6210\u7c7b\u4e0d\u8fdf\u3002<\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u811a\u672c\u5b9e\u9645\u6253\u5370\u4e0e C++ \u7684\u524d\u4e09\u6bb5\u4e00\u81f4，\u95ed\u5305\u8def\u5f84\u7528\u65ad\u8a00\u68c0\u67e5\u9996\u50cf\u7d20，\u6587\u672c\u9002\u914d\u5668\u901a\u8fc7\u540e\u6253\u5370 ok：<\/p>\n

object adapter \/ capture
\n 2×2 rgba0=(255, 0, 0, 255)
\n frames=1 eof
\nobject adapter \/ network
\n 2×2 rgba0=(10, 10, 10, 255)
\n frames=1 eof
\nclass adapter \/ capture
\n 2×2 rgba0=(255, 0, 0, 255)
\n frames=1 eof
\nok <\/p>\n

5.4 \u6807\u51c6\u5e93\u91cc\u7684\u6587\u672c\u9002\u914d\u5668<\/h3>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0io.TextIOWrapper \u628a\u4e8c\u8fdb\u5236\u6d41\u7ffb\u8bd1\u6210 str \u7684\u6587\u4ef6\u63a5\u53e3，\u662f Python \u91cc\u5f88\u5178\u578b\u7684\u9002\u914d\u5668：\u5e95\u5c42\u7f13\u51b2\u7684 read \u8fd4\u56de bytes，\u5305\u88c5\u4e4b\u540e read \u8fd4\u56de str\u3002<\/p>\n

def demo_text_wrapper() -> str:
\n raw = io.BytesIO(b"hello\\\\n")
\n text = io.TextIOWrapper(raw, encoding="utf-8")
\n try:
\n return text.read()
\n finally:
\n text.detach() <\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0\u8fd9\u91cc\u6709\u4e00\u4e2a\u548c C++ \u5f15\u7528\u751f\u547d\u671f\u540c\u7c7b\u7684\u95ee\u9898\u3002TextIOWrapper.close() \u9ed8\u8ba4\u4f1a\u628a\u5e95\u5c42\u4e8c\u8fdb\u5236\u6d41\u4e00\u8d77\u5173\u6389\u3002\u5e95\u5c42\u6d41\u7684\u4e3b\u4eba\u82e5\u662f\u8c03\u7528\u65b9，\u5c31\u5728\u7528\u5b8c\u6587\u672c\u63a5\u53e3\u4e4b\u540e detach()，\u628a\u6240\u6709\u6743\u8fd8\u56de\u53bb\u3002\u793a\u4f8b\u65ad\u8a00\u8fd4\u56de\u503c\u662f "hello\\\\n"\u3002<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0\u987a\u5e26\u4e00\u63d0：\u6807\u51c6\u5e93\u91cc\u540d\u5b57\u5e26 Adapter \u7684\u7c7b，\u4e0d\u4e00\u5b9a\u662f\u8fd9\u4e2a\u6a21\u5f0f\u3002logging.LoggerAdapter \u5728\u539f\u6709\u65e5\u5fd7\u63a5\u53e3\u4e0a\u9644\u52a0\u4e0a\u4e0b\u6587，\u63a5\u53e3\u672c\u8eab\u6ca1\u6709\u6362\u6210\u53e6\u4e00\u5957，\u5b83\u66f4\u63a5\u8fd1\u540e\u9762\u8981\u8bf4\u7684\u88c5\u9970\u5668\u3002\u770b\u7c7b\u505a\u4e86\u54ea\u4e00\u79cd\u7ffb\u8bd1，\u518d\u51b3\u5b9a\u5b83\u5c5e\u4e8e\u54ea\u4e00\u79cd\u7ed3\u6784\u3002<\/p>\n

\u516d\u3001\u7ffb\u8bd1\u53ef\u4ee5\u63a5\u6210\u94fe<\/h2>\n

\u00a0 \u00a0 \u00a0 \u00a0\u6709\u65f6\u4e00\u6b21\u7ffb\u8bd1\u5230\u4e0d\u4e86\u64ad\u653e\u5668\u8981\u7684\u7ec8\u70b9\u3002\u91c7\u96c6\u5361\u7ed9\u51fa RGB24，\u7b97\u6cd5\u6a21\u5757\u8981 YUV，\u6e32\u67d3\u8981 RGBA\u3002\u53ef\u4ee5\u53e0\u4e24\u5c42\u9002\u914d\u5668，\u4f46\u6bcf\u4e00\u5c42\u7684 Target \u5fc5\u987b\u4e0d\u540c，\u800c\u4e14\u6bcf\u4e00\u5c42\u53ea\u505a\u4e00\u79cd\u5e03\u5c40\u8f6c\u6362\u3002<\/p>\n

\"\"<\/p>\n

\u56fe 5：<\/span>pullBuffer<\/span>\u00a0\u2192 <\/span>IYuvSource<\/span>\u00a0\u2192 <\/span>IFrameSource<\/span>，\u6bcf\u4e00\u8df3\u7684\u76ee\u6807\u63a5\u53e3\u90fd\u53d8\u4e86<\/span><\/p>\n

class IYuvSource {
\npublic:
\n virtual ~IYuvSource() = default;
\n virtual bool read(YuvFrame& out) = 0;
\n};<\/p>\n

class RawToYuvAdapter : public IYuvSource {
\n \/\/ \u6301\u6709 CaptureCardSdk，\u628a RGB24 \u8bd1\u6210 YUV
\n};<\/p>\n

class YuvToRgbaAdapter : public IFrameSource {
\npublic:
\n explicit YuvToRgbaAdapter(IYuvSource& yuv) : yuv_(yuv) {}
\n bool read(Frame& out) override; \/\/ \u53ea\u8ba4\u8bc6 IYuvSource
\nprivate:
\n IYuvSource& yuv_;
\n}; <\/p>\n

\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u7b2c\u4e8c\u5c42\u4f9d\u8d56\u7684\u662f IYuvSource，\u4e0d\u4f9d\u8d56\u91c7\u96c6\u5361\u3002\u4ee5\u540e\u6587\u4ef6\u89e3\u590d\u7528\u5982\u679c\u4e5f\u80fd\u4ea7\u51fa IYuvSource，RGBA \u8fd9\u5c42\u9002\u914d\u5668\u53ef\u4ee5\u590d\u7528\u3002<\/p>\n

\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u82e5\u67d0\u4e00\u5c42\u7684\u5165\u53e3\u548c\u51fa\u53e3\u90fd\u662f IFrameSource，\u5b83\u5c31\u4e0d\u518d\u662f\u9002\u914d\u5668\u3002\u5728 read \u524d\u540e\u6253\u65f6\u95f4\u6233\u3001\u53e0\u52a0\u4e00\u9053\u6ee4\u955c，\u63a5\u53e3\u6ca1\u53d8，\u90a3\u662f\u88c5\u9970\u5668\u3002\u56fe 5 \u5e95\u90e8\u90a3\u53e5\u8bdd\u5c31\u662f\u8fd9\u6761\u5206\u754c\u3002<\/p>\n

\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u53cc\u5411\u9002\u914d\u5668\u2014\u2014\u4e00\u4e2a\u7c7b\u540c\u65f6\u628a A \u8bd1\u6210 B\u3001\u628a B \u8bd1\u6210 A\u2014\u2014\u5076\u5c14\u51fa\u73b0\u5728\u4e24\u5957\u90fd\u5df2\u53d1\u5e03\u3001\u8fd8\u5fc5\u987b\u4e92\u76f8\u8c03\u7528\u7684\u63a5\u53e3\u4e4b\u95f4\u3002\u5b83\u4f1a\u628a\u751f\u547d\u671f\u548c\u9519\u8bef\u7801\u62e7\u5728\u4e00\u8d77\u3002\u80fd\u62c6\u6210\u4e24\u4e2a\u5355\u5411\u9002\u914d\u5668\u65f6，\u6d4b\u8bd5\u548c\u7ef4\u62a4\u90fd\u66f4\u6e05\u695a\u3002<\/p>\n

\u4e03\u3001\u6807\u51c6\u5e93\u65e9\u5c31\u5728\u7528\u8fd9\u79cd\u7ed3\u6784<\/h2>\n

\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0C++ \u5bb9\u5668\u9002\u914d\u5668\u662f\u540c\u4e00\u7ed3\u6784\u7684\u4e00\u4e2a\u6781\u7b80\u5f62\u5f0f\u3002std::stack\u3001std::queue\u3001std::priority_queue \u4e0d\u81ea\u5df1\u7ba1\u7406\u4e00\u5757\u65b0\u7684\u5185\u5b58\u5e03\u5c40，\u5b83\u4eec\u6301\u6709\u4e00\u4e2a\u5e8f\u5217\u5bb9\u5668，\u5bf9\u5916\u7ed9\u51fa\u53e6\u4e00\u5957\u64cd\u4f5c\u3002\u4e0b\u9762\u662f stack \u7684\u7b80\u5316\u793a\u610f，\u4e0d\u662f\u6807\u51c6\u5e93\u539f\u6587：<\/p>\n

template <typename T, typename Container = std::deque<T>>
\nclass Stack {
\npublic:
\n void push(const T& value) { data_.push_back(value); }
\n void pop() { data_.pop_back(); }
\n T& top() { return data_.back(); }
\n bool empty() const { return data_.empty(); }<\/p>\n

private:
\n Container data_;
\n}; <\/p>\n

\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0deque \u4e24\u7aef\u90fd\u80fd\u63d2\u5165\u3002Stack \u628a\u8fd9\u5957\u63a5\u53e3\u6536\u6210\u53ea\u80fd\u4ece\u80cc\u7aef\u8fdb\u51fa\u3002\u4f7f\u7528\u65b9\u5199 push \/ pop \/ top，\u63a5\u89e6\u4e0d\u5230 push_front\u3002\u628a Container \u6362\u6210 std::vector<T>，\u7ffb\u8bd1\u5c42\u4e0d\u53d8，\u5e95\u5c42\u5bb9\u5668\u53ef\u4ee5\u6362\u3002\u8fd9\u5c31\u662f\u5bf9\u8c61\u9002\u914d\u5668：\u5bf9\u5916\u7684\u65b9\u6cd5\u96c6\u5408\u548c\u88ab\u9002\u914d\u8005\u4e0d\u540c，\u5185\u90e8\u7528\u7ec4\u5408\u8f6c\u53d1\u3002<\/p>\n

\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u8fed\u4ee3\u5668\u9002\u914d\u5668\u505a\u7684\u662f\u53e6\u4e00\u7c7b\u7ffb\u8bd1\u3002std::reverse_iterator \u628a\u201c\u5411\u524d\u201d\u8bd1\u6210\u201c\u5411\u540e\u201d，std::back_insert_iterator \u628a\u8d4b\u503c\u8bd1\u6210 push_back\u3002\u65e9\u671f\u7684 bind1st \u4e00\u7c7b\u51fd\u6570\u9002\u914d\u5668，\u73b0\u5728\u4e00\u822c\u7531 lambda \u548c std::bind \u627f\u62c5，\u4e5f\u5c31\u662f\u7b2c\u56db\u8282\u91cc playFrames \u90a3\u79cd\u5199\u6cd5\u3002<\/p>\n

\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0Python \u4fa7\u9664\u4e86 io.TextIOWrapper，socket.makefile() \u4e5f\u662f\u628a\u5957\u63a5\u5b57\u6536\u6210\u6587\u4ef6\u5bf9\u8c61\u3002\u8c03\u7528\u65b9\u968f\u540e\u6309\u6587\u4ef6\u63a5\u53e3\u8bfb，\u800c\u4e0d\u662f\u6309 recv \u7684\u7f13\u51b2\u533a\u7ea6\u5b9a\u8bfb\u3002<\/p>\n

\u516b\u3001\u540c\u6837\u662f\u5305\u4e00\u5c42，\u95ee\u63a5\u53e3\u53d8\u4e86\u6ca1\u6709<\/h2>\n

\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u9002\u914d\u5668\u3001\u5916\u89c2\u3001\u6865\u63a5\u3001\u88c5\u9970\u5668\u3001\u4ee3\u7406，\u753b\u51fa\u6765\u90fd\u50cf\u201c\u5916\u9762\u591a\u4e86\u4e00\u4e2a\u7c7b\u201d\u3002\u5206\u5f00\u5b83\u4eec\u7684\u529e\u6cd5\u662f\u770b\u63a5\u53e3，\u4ee5\u53ca\u8fd9\u5c42\u662f\u8bbe\u8ba1\u4e4b\u521d\u5c31\u5728，\u8fd8\u662f\u4e8b\u540e\u8865\u4e0a\u7684\u3002<\/p>\n

\"\"<\/p>\n

\u56fe 6：\u5de6\u53f3\u4e24\u8fb9\u7684\u7b7e\u540d\u76f8\u540c，\u5c31\u662f\u88c5\u9970\u5668\u6216\u4ee3\u7406；\u7b7e\u540d\u4e0d\u540c，\u624d\u662f\u9002\u914d\u5668\u3001\u5916\u89c2\u6216\u6865\u63a5<\/span><\/p>\n

\"\"<\/p>\n

\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u6865\u63a5\u5bb9\u6613\u548c\u9002\u914d\u5668\u8bb0\u6df7，\u56e0\u4e3a\u4e24\u8005\u90fd\u7528\u7ec4\u5408\u3002\u5dee\u522b\u5728\u53d8\u5316\u4ece\u54ea\u6765\u3002<\/p>\n

\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u6865\u63a5\u9762\u5bf9\u7684\u662f\u4e24\u4e2a\u90fd\u4f1a\u589e\u957f\u7684\u5c42\u6b21\u3002\u64ad\u653e\u63a7\u5236\u4e00\u8fb9\u53ef\u80fd\u957f\u51fa\u500d\u901f\u3001\u9010\u5e27\u3001\u53ea\u89e3\u5173\u952e\u5e27；\u6e32\u67d3\u4e00\u8fb9\u53ef\u80fd\u957f\u51fa OpenGL\u3001Vulkan\u3001D3D\u3002\u8ba9\u201c\u500d\u901f\u64ad\u653e\u201d\u76f4\u63a5\u7ee7\u627f\u201cVulkan \u64ad\u653e\u5668\u201d，\u6bcf\u52a0\u4e00\u79cd\u753b\u6cd5\u5c31\u8981\u518d\u590d\u5236\u4e00\u5957\u63a7\u5236\u903b\u8f91\u3002\u6865\u63a5\u7684\u505a\u6cd5\u662f\u64ad\u653e\u62bd\u8c61\u6301\u6709\u6e32\u67d3\u5b9e\u73b0\u63a5\u53e3，\u4e24\u4e2a\u5c42\u6b21\u5404\u81ea\u6d3e\u751f，\u7528\u7ec4\u5408\u8fde\u4e0a\u3002\u8fd9\u662f\u642d\u7ed3\u6784\u7684\u65f6\u5019\u5c31\u51b3\u5b9a\u7684\u3002<\/p>\n

\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u9002\u914d\u5668\u9762\u5bf9\u7684\u662f\u4e00\u5757\u5df2\u7ecf\u5b58\u5728\u3001\u7b7e\u540d\u4e0d\u5408\u7684\u4ee3\u7801\u3002\u7b2c\u4e09\u65b9 GL \u5c01\u88c5\u7684\u51fd\u6570\u540d\u548c\u4f60\u7684\u6e32\u67d3\u5b9e\u73b0\u63a5\u53e3\u4e0d\u4e00\u81f4\u65f6，\u518d\u5199\u4e00\u4e2a\u9002\u914d\u5668\u628a\u5b83\u63a5\u8fdb\u6865\u7684\u5b9e\u73b0\u7aef\u3002\u6865\u63a5\u8d1f\u8d23\u4e24\u8fb9\u80fd\u72ec\u7acb\u6269\u5c55，\u9002\u914d\u5668\u8d1f\u8d23\u67d0\u4e00\u7aef\u7684\u5177\u4f53\u7c7b\u80fd\u63d2\u8fdb\u5df2\u7ecf\u5b9a\u4e0b\u6765\u7684\u63a5\u53e3\u3002<\/p>\n

\u4e5d\u3001\u653e\u5728\u64ad\u653e\u94fe\u8def\u4e0a<\/h2>\n

\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u9002\u914d\u5668\u503c\u5f97\u5199，\u901a\u5e38\u662f\u56e0\u4e3a\u8fb9\u754c\u4e0d\u5c5e\u4e8e\u4f60，\u6216\u8005\u5df2\u7ecf\u53d1\u5e03\u3001\u4e0d\u80fd\u6539\u7b7e\u540d：\u5382\u5546\u91c7\u96c6 SDK\u3001\u53e6\u4e00\u7ec4\u4eba\u51bb\u7ed3\u7684\u5e27\u63a5\u53e3\u3001\u6807\u51c6\u5e93\u7684\u6d41\u7c7b\u578b\u3002\u5ba2\u6237\u7aef\u63a5\u53e3\u5df2\u7ecf\u7a33\u5b9a，\u800c\u4e14\u540e\u9762\u8fd8\u4f1a\u63a5\u7b2c\u4e8c\u5bb6\u3001\u7b2c\u4e09\u5bb6\u5b9e\u73b0\u3002<\/p>\n

\u4e0b\u9762\u8fd9\u4e9b\u60c5\u51b5，\u52a0\u9002\u914d\u5668\u53ea\u4f1a\u591a\u4e00\u5c42\u8df3\u8f6c：<\/p>\n