Android音视频青训营笔记的相关内容

Android中的音视频(1)|青训营笔记（二）

视频压缩若是视频未压缩，一个时长接近两个小时，分辨率为4k的视频，其大小会超过400GB。所以视频的压缩是尤为重要的。颜色空间YUV色彩空间不同于RGB，是另一种颜色数字化的表达方式，由于RGB不利于压缩，所以在视频系统中多会采用的是YUV。YUV体系中，不同于RGB的是，其有一个亮度...

Android中的音视频(1)|青训营笔记（一）

前言关于音视频，我们需要先了解如下的知识像素如上的点阵图，每一幅图片都是由若干个不同颜色的点组成的，这其中的每一个点叫做一个像素。其颜色值一般由RGB表示RGB所谓RGB，是表示颜色值的的一种格式。其原理也是基于三原色，R G B 分别代表的是Red、Green、Blue，其数值表示对应颜色的强度。...

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Android中的音视频(2)|青训营笔记

直播推拉流封装格式按照一定的规则，把视频数据、音频数据放到一个文件中MP4容器协议Moov：Movie Box，存储 mp4 的 metadata，一般位于mp4文件的开头。(为达到秒播效果，会记录很多信息在该文件) mvhd：Movie Header Box，mp4文件的整体信息，比...

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