{"id":54,"date":"2017-01-01T15:56:02","date_gmt":"2017-01-01T07:56:02","guid":{"rendered":"http:\/\/kogasa.moe\/?p=54"},"modified":"2018-04-29T13:30:28","modified_gmt":"2018-04-29T05:30:28","slug":"xaudio2-operation-sets-%e6%93%8d%e4%bd%9c%e9%9b%86","status":"publish","type":"post","link":"https:\/\/flandre-scarlet.moe\/blog\/54\/","title":{"rendered":"XAudio2 Operation Sets \u64cd\u4f5c\u96c6"},"content":{"rendered":"<p>\u90e8\u5206XAudio2\u7684\u65b9\u6cd5\u4e2d\u542b\u6709OperationSet\u53c2\u6570\uff0c\u8fd9\u4e2a\u53c2\u6570\u80fd\u51b3\u5b9a\u662f\u5426\u5ef6\u8fdf\u6267\u884c\u8fd9\u4e9b\u65b9\u6cd5\uff08\u4ec5\u6dfb\u52a0\u4e00\u4e2a\u6302\u8d77\u7684\u64cd\u4f5c\uff09\u3002\u7136\u540e\u5728\u67d0\u4e2a\u7279\u5b9a\u7684\u65f6\u95f4\u901a\u8fc7\u8c03\u7528<a href=\"https:\/\/msdn.microsoft.com\/zh-cn\/library\/windows\/desktop\/microsoft.directx_sdk.ixaudio2.ixaudio2.commitchanges(v=vs.85).aspx\" target=\"_blank\" rel=\"noopener\">XAudio2::CommitChanges<\/a>\uff0c\u5e76\u5c06\u5b83\u7684OperationSet\u53c2\u6570\u6307\u5b9a\u4e3a\u76ee\u6807\u64cd\u4f5c\u7684ID\uff0c\u8fd9\u6837\u5c31\u80fd\u8ba9XAudio2\u7ec4\u4ef6\u771f\u6b63\u6267\u884c\u5bf9\u5e94\u7684\u64cd\u4f5c\u3002\u8fd9\u4e2aID\u6ca1\u6709\u7279\u6b8a\u8981\u6c42\uff0c\u53ea\u8981\u4e92\u4e0d\u76f8\u540c\u5373\u53ef\uff0c\u56e0\u6b64\u53ef\u4ee5\u7528\u4e00\u4e2a\u5168\u5c40\u8ba1\u6570\u5668\u6765\u4f5c\u4e3a\u5b83\u4eec\u7684ID\uff0c\u6bcf\u6b21\u4f7f\u7528\u540e\u589e\u52a0\u8ba1\u6570\u5373\u53ef\u3002\u8fd9\u6837\u4e00\u6765\uff0c\u4e0d\u540c\u4ee3\u7801\u5c31\u53ef\u4ee5\u4e92\u4e0d\u51b2\u7a81\u5730\u63d0\u4ea4\u4fee\u6539\uff08\u5168\u5c40\u8ba1\u6570\u5668\u540c\u65f6\u4e5f\u53ef\u7528\u4e8e\u533a\u5206\u63d0\u4ea4\u4fee\u6539\u7684\u65f6\u95f4\u5148\u540e\uff09\u3002<\/p>\n<p>\u540c\u65f6\uff0c\u4ee5\u539f\u5b50\u65b9\u5f0f\u63d0\u4ea4\u7684\u591a\u4e2a\u64cd\u4f5c\u88ab\u786e\u4fdd\u662f\u4ee5\u91c7\u6837\u7387\u5339\u914d\u65b9\u5f0f\u6df7\u97f3\u7684\uff08\u4e00\u4e2a\u6df7\u5408\u97f3\u8f68\u65b9\u9762\u7684\u672f\u8bed\uff0c\u9632\u6b62\u6df7\u97f3\u65f6\u56e0\u91c7\u6837\u7387\u7684\u4e0d\u51c6\u786e\u800c\u5bfc\u81f4\u64ad\u653e\u65f6\u957f\u7684\u53d8\u5316\uff0c\u8be6\u89c1<a href=\"http:\/\/www.emusician.com\/how-to\/1334\/whaddya-mean-sample-accurate\/33293\" target=\"_blank\" rel=\"noopener\">\u8fd9\u91cc<\/a>\uff09\u3002\u6bd4\u5982\uff0c\u58f0\u97f3\u7684\u64ad\u653e\u5c06\u4f1a\u662f\u540c\u6b65\u7684\u3002\u53e6\u4e00\u65b9\u9762\uff0c\u5982\u679c\u7528XAUDIO2_COMMIT_NOW\uff08\u503c\u4e3a0\uff09\u4f5c\u4e3aOperationSet\u53c2\u6570\u7684\u503c\uff0c\u6539\u52a8\u5c06\u7acb\u5373\u751f\u6548\u3002\u5982\u679c\u4ee5XAUDIO2_COMMIT_ALL\uff08\u503c\u4e5f\u4e3a0\uff09\u53c2\u6570\u8c03\u7528CommitChanges\uff0c\u5219\u6240\u6709\u6302\u8d77\u7684\u64cd\u4f5c\u90fd\u5c06\u751f\u6548\uff0c\u8fd9\u65f6OperationSet\u7684ID\u5c06\u88ab\u5ffd\u7565\u3002<br \/>\n<!--more--><\/p>\n<p>\u4f8b\u5982\uff0c\u5206\u522b\u8c03\u7528<\/p>\n<pre class=\"brush: cpp; title: ; notranslate\" title=\"\">pSourceVoice1-&gt;Start(0, 1);\r\npSourceVoice2-&gt;Start(0, 2);\r\n\r\n\/\/ \u8fd9\u65f6\u58f0\u97f3\u8fd8\u672a\u64ad\u653e\r\n\r\npXaudio2-&gt;CommitChanges(XAUDIO2_COMMIT_ALL);    \/\/ \u58f0\u97f31\u30012\u540c\u65f6\u64ad\u653e\r\n\/\/pXaudio2-&gt;CommitChanges(1);                   \/\/ \u4ec5\u64ad\u653e\u58f0\u97f31\r\n\/\/pXaudio2-&gt;CommitChanges(2);                   \/\/ \u4ec5\u64ad\u653e\u58f0\u97f32\r\n\r\npSourceVoice3-&gt;Start();                         \/\/ \u58f0\u97f33\u5c06\u7acb\u5373\u64ad\u653e(Start\u65b9\u6cd5\u7684\u4e24\u4e2a\u53c2\u6570\u9ed8\u8ba4\u503c\u5747\u4e3a0)<\/pre>\n<p>\u5728XAudio2\u7684\u56de\u8c03\u51fd\u6570\u4e2d\u7528XAUDIO2_COMMIT_NOW\u8c03\u7528\u4e00\u4e9b\u65b9\u6cd5\u65f6\uff0c\u64cd\u4f5c\u4f1a\u7acb\u5373\u751f\u6548\uff0c\u800c\u5176\u4ed6\u7528XAUDIO2_COMMIT_NOW\u8c03\u7528\u7684\u65b9\u6cd5\u5c06\u5728\u65b9\u6cd5\u8fd4\u56de\u540e\u7684\u4e0b\u4e00\u4e2a\u5904\u7406\u65f6\u673a\u624d\u4f1a\u751f\u6548\uff0c\u6216\u8005\u7b49\u5230\u7528\u76f8\u540c\u7684OperationSet\u503c\u8c03\u7528CommitCahnges\u65f6\u751f\u6548\u3002\u56e0\u6b64\u8c03\u7528\u7684\u751f\u6548\u987a\u5e8f\u5e76\u4e0d\u603b\u662f\u4e0e\u8c03\u7528\u987a\u5e8f\u76f8\u7b49\u3002<\/p>\n<p>\u6240\u6709\u6302\u8d77\u7684\u64cd\u4f5c\u5728<a href=\"https:\/\/msdn.microsoft.com\/zh-cn\/library\/windows\/desktop\/microsoft.directx_sdk.ixaudio2.ixaudio2.stopengine(v=vs.85).aspx\" target=\"_blank\" rel=\"noopener\">IXAudio2::StopEngine<\/a>\u88ab\u8c03\u7528\u65f6\u5c06\u4ee5\u539f\u5b50\u65b9\u5f0f\u63d0\u4ea4\u3002\u4efb\u4f55\u5728\u5f15\u64ce\u505c\u6b62\u65f6\u8c03\u7528\u7684\u65b9\u6cd5\u90fd\u4f1a\u65e0\u89c6OperationSet\u53c2\u6570\u800c\u7acb\u5373\u751f\u6548\uff08\u4ee5\u540c\u6b65\u6a21\u5f0f\uff09\u3002\u5f53\u4f60\u91cd\u65b0\u542f\u52a8\u5f15\u64ce\u65f6\uff0cXAudio2\u4f1a\u6062\u590d\u5f02\u6b65\u6a21\u5f0f\u3002<\/p>\n<pre class=\"brush: cpp; title: ; notranslate\" title=\"\">\/\/ \u4f46\u6211\u5728\u6d4b\u8bd5\u65f6\u53d1\u73b0\u5728\u8c03\u7528StopEngine\u540e\r\n\/\/ \u4ee5\u6302\u8d77\u65b9\u5f0f\u8c03\u7528\u7684\u65b9\u6cd5\u5e76\u6ca1\u6709\u7acb\u5373\u751f\u6548\uff0c\u4e0d\u77e5\u662f\u4e0d\u662f\u6211\u7684\u7406\u89e3\u6709\u9519\uff0c\u4ee3\u7801\u5982\u4e0b\r\nhr = pSourceVoice-&gt;Start(0, 0);\r\nSleep(4000);\r\npXaudio2-&gt;StopEngine();\r\nwprintf(L&quot;Engine Stopped!\\n&quot;);\r\nSleep(4000);\r\nhr = pSourceVoice-&gt;SetVolume(0.1f, 1);\r\n\/\/hr = pSourceVoice-&gt;SetVolume(0.1f, 0);  \/\/ \u5982\u679c\u4ee5XAUDIO2_COMMIT_NOW\u8c03\u7528\u5219\u91cd\u542f\u5f15\u64ce\u65f6\u5df2\u7ecf\u751f\u6548\r\nSleep(4000);\r\npXaudio2-&gt;StartEngine();\r\nwprintf(L&quot;Engine Restart\\n&quot;);\r\nSleep(4000);\r\npXaudio2-&gt;CommitChanges(1);               \/\/ \u4fee\u6539\u97f3\u91cf\u7684\u64cd\u4f5c\u76f4\u5230\u6b64\u65f6\u624d\u751f\u6548\uff0c\u800c\u4e0d\u662f\u5728\u91cd\u542f\u5f15\u64ce\u65f6\u5df2\u7ecf\u751f\u6548<\/pre>\n<p>\u4ee5\u4e0b\u4e3a\u64cd\u4f5c\u96c6\u7684\u51e0\u4e2a\u7b80\u5355\u573a\u666f\u4e0b\u7684\u6709\u6548\u5e94\u7528\uff1a<br \/>\n1\u3001\u540c\u65f6\u64ad\u653e\u591a\u4e2a\u58f0\u97f3\u3002<br \/>\n2\u3001\u540c\u65f6\u63d0\u4ea4\u58f0\u97f3Buffer\uff08SubmitSourceBuffer\uff09\uff0c\u8bbe\u7f6e\u58f0\u97f3\u53c2\u6570\uff0c\u64ad\u653e\u58f0\u97f3\u3002<br \/>\n3\u3001\u5bf9\u97f3\u9891\u8fdb\u884c\u5927\u89c4\u6a21\u7684\u4fee\u6539\u53c2\u6570\uff0c\u5982\u628a\u6240\u6709source voices\u8fde\u63a5\u5230\u4e00\u4e2a\u65b0\u7684submix voice\u4e0a\u3002<\/p>\n<p>\u66f4\u591a\uff1a<a href=\"https:\/\/msdn.microsoft.com\/zh-cn\/library\/windows\/desktop\/ee415807(v=vs.85).aspx\" target=\"_blank\" rel=\"noopener\">XAudio2 Operation Set<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u90e8\u5206XAudio2\u7684\u65b9\u6cd5\u4e2d\u542b\u6709OperationSet\u53c2\u6570\uff0c\u8fd9\u4e2a\u53c2\u6570\u80fd\u51b3\u5b9a\u662f\u5426\u5ef6\u8fdf\u6267\u884c\u8fd9\u4e9b\u65b9\u6cd5\uff08\u4ec5\u6dfb\u52a0\u4e00\u4e2a\u6302\u8d77&#8230; <\/p>\n<div class=\"read-more navbutton\"><a href=\"https:\/\/flandre-scarlet.moe\/blog\/54\/\">\u9605\u8bfb\u66f4\u591a<i class=\"fa fa-angle-double-right\"><\/i><\/a><\/div>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-54","post","type-post","status-publish","format-standard","hentry","category-directx"],"_links":{"self":[{"href":"https:\/\/flandre-scarlet.moe\/blog\/wp-json\/wp\/v2\/posts\/54","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/flandre-scarlet.moe\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/flandre-scarlet.moe\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/flandre-scarlet.moe\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/flandre-scarlet.moe\/blog\/wp-json\/wp\/v2\/comments?post=54"}],"version-history":[{"count":0,"href":"https:\/\/flandre-scarlet.moe\/blog\/wp-json\/wp\/v2\/posts\/54\/revisions"}],"wp:attachment":[{"href":"https:\/\/flandre-scarlet.moe\/blog\/wp-json\/wp\/v2\/media?parent=54"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/flandre-scarlet.moe\/blog\/wp-json\/wp\/v2\/categories?post=54"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/flandre-scarlet.moe\/blog\/wp-json\/wp\/v2\/tags?post=54"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}