/* * 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. * *
This is only called for debuging and always shown in english.
*/
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, "", audioPositionColor));
buffer.append(
String.format(
Locale.US,
"audioPositionMs: %d (%d)
",
audioPositionUs / 1000,
audioPositionMsRate));
buffer.append("\n");
buffer.append("");
buffer.append(
String.format(
Locale.US,
"audioPtsMs: %d (%d, %d)
",
audioPtsUs / 1000,
audioPtsUsRate / 1000,
(audioPtsUs - audioPositionUs) / 1000));
buffer.append(
String.format(
Locale.US,
"videoPtsMs: %d (%d, %d)
",
videoPtsUs / 1000,
videoPtsUsRate / 1000,
(videoPtsUs - audioPositionUs) / 1000));
buffer.append("\n");
appendStatusLine(buffer, "KbytesInQueue", bytesInQueue / 1000, 1, 10);
buffer.append("
");
appendErrorStatusLine(buffer, "videoFrameDrop", videoFrameDrop, 0, 2);
buffer.append("
");
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("%s\n", COLOR_YELLOW, msg);
}
private static void appendStatusLine(
StringBuffer buffer, String factorName, long value, int minRed, int minYellow) {
buffer.append("");
buffer.append(factorName);
buffer.append(" : ");
buffer.append(value);
buffer.append("");
}
private static void appendErrorStatusLine(
StringBuffer buffer, String factorName, int value, int minGreen, int minYellow) {
buffer.append("");
buffer.append(factorName);
buffer.append(" : ");
buffer.append(value);
buffer.append("");
}
}