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/*
* Copyright (C) 2015 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.tv.tuner.util;
import java.util.Locale;
/**
* Utility class for tuner status messages.
*/
public class StatusTextUtils {
private static final int PACKETS_PER_SEC_YELLOW = 1500;
private static final int PACKETS_PER_SEC_RED = 1000;
private static final int AUDIO_POSITION_MS_RATE_DIFF_YELLOW = 100;
private static final int AUDIO_POSITION_MS_RATE_DIFF_RED = 200;
private static final String COLOR_RED = "red";
private static final String COLOR_YELLOW = "yellow";
private static final String COLOR_GREEN = "green";
private static final String COLOR_GRAY = "gray";
private StatusTextUtils() { }
/**
* Returns tuner status warning message in HTML.
*
* <p>This is only called for debuging and always shown in english.</p>
*/
public static String getStatusWarningInHTML(long packetsPerSec,
int videoFrameDrop, int bytesInQueue,
long audioPositionUs, long audioPositionUsRate,
long audioPtsUs, long audioPtsUsRate,
long videoPtsUs, long videoPtsUsRate) {
StringBuffer buffer = new StringBuffer();
// audioPosition should go in rate of 1000ms.
long audioPositionMsRate = audioPositionUsRate / 1000;
String audioPositionColor;
if (Math.abs(audioPositionMsRate - 1000) > AUDIO_POSITION_MS_RATE_DIFF_RED) {
audioPositionColor = COLOR_RED;
} else if (Math.abs(audioPositionMsRate - 1000) > AUDIO_POSITION_MS_RATE_DIFF_YELLOW) {
audioPositionColor = COLOR_YELLOW;
} else {
audioPositionColor = COLOR_GRAY;
}
buffer.append(String.format(Locale.US, "<font color=%s>", audioPositionColor));
buffer.append(
String.format(Locale.US, "audioPositionMs: %d (%d)<br>", audioPositionUs / 1000,
audioPositionMsRate));
buffer.append("</font>\n");
buffer.append("<font color=" + COLOR_GRAY + ">");
buffer.append(String.format(Locale.US, "audioPtsMs: %d (%d, %d)<br>", audioPtsUs / 1000,
audioPtsUsRate / 1000, (audioPtsUs - audioPositionUs) / 1000));
buffer.append(String.format(Locale.US, "videoPtsMs: %d (%d, %d)<br>", videoPtsUs / 1000,
videoPtsUsRate / 1000, (videoPtsUs - audioPositionUs) / 1000));
buffer.append("</font>\n");
appendStatusLine(buffer, "KbytesInQueue", bytesInQueue / 1000, 1, 10);
buffer.append("<br/>");
appendErrorStatusLine(buffer, "videoFrameDrop", videoFrameDrop, 0, 2);
buffer.append("<br/>");
appendStatusLine(buffer, "packetsPerSec", packetsPerSec, PACKETS_PER_SEC_RED,
PACKETS_PER_SEC_YELLOW);
return buffer.toString();
}
/**
* Returns audio unavailable warning message in HTML.
*/
public static String getAudioWarningInHTML(String msg) {
return String.format("<font color=%s>%s</font>\n", COLOR_YELLOW, msg);
}
private static void appendStatusLine(StringBuffer buffer, String factorName, long value,
int minRed, int minYellow) {
buffer.append("<font color=");
if (value <= minRed) {
buffer.append(COLOR_RED);
} else if (value <= minYellow) {
buffer.append(COLOR_YELLOW);
} else {
buffer.append(COLOR_GREEN);
}
buffer.append(">");
buffer.append(factorName);
buffer.append(" : ");
buffer.append(value);
buffer.append("</font>");
}
private static void appendErrorStatusLine(StringBuffer buffer, String factorName, int value,
int minGreen, int minYellow) {
buffer.append("<font color=");
if (value <= minGreen) {
buffer.append(COLOR_GREEN);
} else if (value <= minYellow) {
buffer.append(COLOR_YELLOW);
} else {
buffer.append(COLOR_RED);
}
buffer.append(">");
buffer.append(factorName);
buffer.append(" : ");
buffer.append(value);
buffer.append("</font>");
}
}
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