更改MediaPlayer上的缓冲区大小

Question

有没有办法在流媒体上更改默认缓冲区大小MediaPlayer？

Answer 1

缓冲区大小被烘焙到固件中.您所能做的就是密切关注缓冲区的填充量,即使只是基于百分比.

抱歉!

Answer 2

大小在frameworks/base/media/libstagefright/include/NuCachedSource2.h中设置

kDefaultHighWaterThreshold和kDefaultLowWaterThreshold在Android 2.3.7和Android 4.0.4之间上升.缓冲区大小增长了8倍,如此线程 Android中所述 - ICS 4.0中的MediaPlayer缓冲区大小

你需要一个自定义的ROM.

Android 2.3.7

enum {
    kPageSize            = 65536,
    kHighWaterThreshold  = 5 * 1024 * 1024,
    kLowWaterThreshold   = 512 * 1024,

    // Read data after a 15 sec timeout whether we're actively
    // fetching or not.
    kKeepAliveIntervalUs = 15000000,
};

Android 4.0.4

enum {
    kPageSize                       = 65536,
    kDefaultHighWaterThreshold      = 20 * 1024 * 1024,
    kDefaultLowWaterThreshold       = 4 * 1024 * 1024,

    // Read data after a 15 sec timeout whether we're actively
    // fetching or not.
    kDefaultKeepAliveIntervalUs     = 15000000,
};

如果您介意这个问题,那么您可能对错误报告感兴趣 https://code.google.com/p/android/issues/detail?id=29870