Merge "Support for CEA-708 closed caption"

import android.content.res.Resources;

import android.graphics.Canvas;

import android.media.AudioManager;

import android.media.Cea708CaptionRenderer;

import android.media.ClosedCaptionRenderer;

import android.media.MediaFormat;

import android.media.MediaPlayer;

                    context, mMediaPlayer.getMediaTimeProvider(), mMediaPlayer);

            controller.registerRenderer(new WebVttRenderer(context));

            controller.registerRenderer(new TtmlRenderer(context));

            controller.registerRenderer(new Cea708CaptionRenderer(context));

            controller.registerRenderer(new ClosedCaptionRenderer(context));

            mMediaPlayer.setSubtitleAnchor(controller, this);

import android.graphics.RectF;

import android.graphics.Typeface;

import android.text.Layout.Alignment;

import android.text.SpannableStringBuilder;

import android.text.StaticLayout;

import android.text.TextPaint;

import android.util.AttributeSet;

    /** Temporary rectangle used for computing line bounds. */

    private final RectF mLineBounds = new RectF();

    /** Reusable string builder used for holding text. */

    private final StringBuilder mText = new StringBuilder();

    /** Reusable spannable string builder used for holding text. */

    private final SpannableStringBuilder mText = new SpannableStringBuilder();

    private Alignment mAlignment;

    private TextPaint mTextPaint;

    }

    public void setText(CharSequence text) {

        mText.setLength(0);

        mText.clear();

        mText.append(text);

        mHasMeasurements = false;