一分钟聊聊Linux命令行
Claim This Podcastby 叮宕
Podcast Overview
<p data-flag="normal" style="font-size:16px;color:#333333;line-height:30px;word-break:break-all;font-family:Helvetica,Arial,sans-serif;font-weight:normal">不定期更新的日常……</p>
Language
🇨🇳
Publishing Since
2/11/2017
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Recent Episodes
December 11, 2023
澎湃os ?鸿蒙os ? nuttx ? 什么是实时 什么是分时
October 22, 2023
pgrep 的用处
pgrep的用处<br>pgrep -x abc || abc
October 18, 2023
从使用者的角度聊聊硬解
<p style="color:#333333;font-weight:normal;font-size:16px;line-height:30px;font-family:Helvetica, Arial, sans-serif;hyphens:auto;text-align:justify;" data-flag="normal">从上到下</p><p style="color:#333333;font-weight:normal;font-size:16px;line-height:30px;font-family:Helvetica, Arial, sans-serif;hyphens:auto;text-align:justify;" data-flag="normal"><b>图形渲染</b></p><p style="color:#333333;font-weight:normal;font-size:16px;line-height:30px;font-family:Helvetica, Arial, sans-serif;hyphens:auto;text-align:justify;" data-flag="normal"><strong style="color:#FC5832;word-break:break-all;font-family:Helvetica,Arial,sans-serif;font-weight: normal;">API 规定者 API实现者</strong></p><p style="color:#333333;font-weight:normal;font-size:16px;line-height:30px;font-family:Helvetica, Arial, sans-serif;hyphens:auto;text-align:justify;" data-flag="normal"><strong style="color:#FC5832;word-break:break-all;font-family:Helvetica,Arial,sans-serif;font-weight: normal;">opengl </strong><span><strong style="color:#FC5832;word-break:break-all;font-family:Helvetica,Arial,sans-serif;font-weight: normal;">Mesa</strong></span></p><p style="color:#333333;font-weight:normal;font-size:16px;line-height:30px;font-family:Helvetica, Arial, sans-serif;hyphens:auto;text-align:justify;" data-flag="normal"><span><strong style="color:#FC5832;word-break:break-all;font-family:Helvetica,Arial,sans-serif;font-weight: normal;">drm rockchip-drm 依赖 lima驱动 lima驱动和GPU直接沟通(这里是mali450)</strong></span></p><p style="color:#333333;font-weight:normal;font-size:16px;line-height:30px;font-family:Helvetica, Arial, sans-serif;hyphens:auto;text-align:justify;" data-flag="normal"><span><b>硬件解码</b></span></p><p style="color:#333333;font-weight:normal;font-size:16px;line-height:30px;font-family:Helvetica, Arial, sans-serif;hyphens:auto;text-align:justify;" data-flag="normal"><span><strong style="color:#FC5832;word-break:break-all;font-family:Helvetica,Arial,sans-serif;font-weight: normal;">API 规定者 API实现者</strong></span></p><p style="color:#333333;font-weight:normal;font-size:16px;line-height:30px;font-family:Helvetica, Arial, sans-serif;hyphens:auto;text-align:justify;" data-flag="normal"><strong style="color:#FC5832;word-break:break-all;font-family:Helvetica,Arial,sans-serif;font-weight: normal;">Video4Linux2 Hantro VPU模块(如v4l2_h264，</strong><strong style="color:#FC5832;word-break:break-all;font-family:Helvetica,Arial,sans-serif;font-weight: normal;">v4l2_mem2mem) 它们再和VPU沟通</strong></p><p style="color:#333333;font-weight:normal;font-size:16px;line-height:30px;font-family:Helvetica, Arial, sans-serif;hyphens:auto;text-align:justify;" data-flag="normal"><b>一句话简介</b></p><p style="color:#333333;font-weight:normal;font-size:16px;line-height:30px;font-family:Helvetica,Arial,sans-serif;hyphens:auto;text-align:justify;" data-flag="normal">opengl:开源三维计算机图形图形库</p><p style="color:#333333;font-weight:normal;font-size:16px;line-height:30px;font-family:Helvetica,Arial,sans-serif;hyphens:auto;text-align:justify;" data-flag="normal">mesa:开源实现opengl的图形库</p><p style="color:#333333;font-weight:normal;font-size:16px;line-height:30px;font-family:Helvetica,Arial,sans-serif;hyphens:auto;text-align:justify;" data-flag="normal">drm:直接渲染管理,提供硬件独立的图形卡访问接口</p><p style="color:#333333;font-weight:normal;font-size:16px;line-height:30px;font-family:Helvetica,Arial,sans-serif;hyphens:auto;text-align:justify;" data-flag="normal"><span>Video4Linux2</span>:<span>管理与访问视频设备的子系统</span></p><p style="color:#333333;font-weight:normal;font-size:16px;line-height:30px;font-family:Helvetica,Arial,sans-serif;hyphens:auto;text-align:justify;" data-flag="normal">ffmpeg:完整的、开源的、免费的视频和音频处理软件工具包</p><p style="color:#333333;font-weight:normal;font-size:16px;line-height:30px;font-family:Helvetica, Arial, sans-serif;hyphens:auto;text-align:justify;" data-flag="normal"><b>一个典型的在rockchip 盒子上，使用mainland内核编译ffmpeg的参数选项</b>：</p><p style="color:#333333;font-weight:normal;font-size:16px;line-height:30px;font-family:Helvetica, Arial, sans-serif;hyphens:auto;text-align:justify;" data-flag="normal">./configure <span>--enable-libdrm --enable-libpulse --enable-libx264 --enable-libx265 --enable-v4l2-request --enable-libudev --enable-shared --enable-gpl --enable-version3 </span></p><p style="color:#333333;font-weight:normal;font-size:16px;line-height:30px;font-family:Helvetica, Arial, sans-serif;hyphens:auto;text-align:justify;" data-flag="normal"><span><strong style="color:#FC5832;word-break:break-all;font-family:Helvetica,Arial,sans-serif;font-weight: normal;">注意，ffmpeg官方主线不支持v4l2-request,你需要找支持的fork来编译</strong></span></p><span><br><br></span>
43 total episodes available
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<p data-flag="normal" style="font-size:16px;color:#333333;line-height:30px;word-break:break-all;font-family:Helvetica,Arial,sans-serif;font-weight:normal">不定期更新的日常……</p> - How often does this podcast release new episodes?
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