摄像头video分辨率设置问题

[eilianlong]

进入video种高低视频画质和YOUTOBE之分。想问下，在选择高或者低画质时是调用了什么函数设置了width和high的。
在videocamera.JAVA中做了


private void readVideoPreferences() {
String quality = mPreferences.getString(
CameraSettings.KEY_VIDEO_QUALITY,
CameraSettings.DEFAULT_VIDEO_QUALITY_VALUE);

boolean videoQualityHigh = CameraSettings.getVideoQuality(quality);

// Set video quality.
Intent intent = getIntent();
if (intent.hasExtra(MediaStore.EXTRA_VIDEO_QUALITY)) {
int extraVideoQuality =
intent.getIntExtra(MediaStore.EXTRA_VIDEO_QUALITY, 0);
videoQualityHigh = (extraVideoQuality > 0);
}

// Set video duration limit. The limit is read from the preference,
// unless it is specified in the intent.
if (intent.hasExtra(MediaStore.EXTRA_DURATION_LIMIT)) {
int seconds =
intent.getIntExtra(MediaStore.EXTRA_DURATION_LIMIT, 0);
mMaxVideoDurationInMs = 1000 * seconds;
} else {
mMaxVideoDurationInMs =
CameraSettings.getVidoeDurationInMillis(quality);
}
mProfile = CamcorderProfile.get(mCameraId,
videoQualityHigh
? CamcorderProfile.QUALITY_HIGH
: CamcorderProfile.QUALITY_LOW);
}
但只是read，不知道set是在哪了做的？
所以现在的问题是在点了低画质后，参数width和high是在哪了做了重新设定？

[lazygirlgo]

好像数模问题的说

[eilianlong]

就没人知道吗？谁能说说video摄像的流程。来讨论讨论