<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom" xmlns:content="http://purl.org/rss/1.0/modules/content/"><channel><title>Opencl on TinyChen's Blog</title><link>https://tinychen.com/tags/opencl/</link><description>Recent content in Opencl on TinyChen's Blog</description><generator>Hugo</generator><language>zh-cn</language><lastBuildDate>Thu, 23 Jul 2026 12:00:00 +0800</lastBuildDate><atom:link href="https://tinychen.com/tags/opencl/index.xml" rel="self" type="application/rss+xml"/><item><title>Octans-媒体库硬转码与色调映射选型</title><link>https://tinychen.com/20260415-octans-hw-transcode-tone-mapping/</link><pubDate>Wed, 15 Apr 2026 12:00:00 +0800</pubDate><guid>https://tinychen.com/20260415-octans-hw-transcode-tone-mapping/</guid><description>&lt;p&gt;本文主要说明自托管媒体库（以 Octans 播放子系统为例）在服务端 HLS 转码时，如何在软件、&lt;code&gt;tonemap_vaapi&lt;/code&gt; 与 &lt;code&gt;tonemap_opencl&lt;/code&gt; 之间做 tone mapping 选型：能力门禁、按动态范围分流的 Planner 逻辑、验证分层含义，以及「厂商 codec 矩阵 ≠ 本机已接线」的边界。设备节点以 &lt;code&gt;/dev/dri/renderD128&lt;/code&gt; 一类占位符给出。&lt;/p&gt;</description></item></channel></rss>