/*
* Copyright (C) 2015 Samuel Audet
*
* Licensed either under the Apache License, Version 2.0, or (at your option)
* under the terms of the GNU General Public License as published by
* the Free Software Foundation (subject to the "Classpath" exception),
* either version 2, or any later version (collectively, 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
* http://www.gnu.org/licenses/
* http://www.gnu.org/software/classpath/license.html
*
* or as provided in the LICENSE.txt file that accompanied this code.
* 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 org.bytedeco.javacv;
import org.bytedeco.javacpp.BytePointer;
import org.bytedeco.javacpp.tools.Logger;
import static org.bytedeco.javacpp.avutil.*;
/**
* A utility class to redirect to Java log messages from FFmpeg.
*
* @see Logger
*
* @author Samuel Audet
*/
public class FFmpegLogCallback extends LogCallback {
private static final Logger logger = Logger.create(FFmpegLogCallback.class);
static final FFmpegLogCallback instance = new FFmpegLogCallback();
/** Returns an instance that can be used with {@link #setLogCallback(LogCallback)}. */
public static FFmpegLogCallback getInstance() {
return instance;
}
/** Calls {@code avutil.setLogCallback(getInstance())}. */
public static void set() {
setLogCallback(getInstance());
}
@Override public void call(int level, BytePointer msg) {
switch (level) {
case AV_LOG_PANIC:
case AV_LOG_FATAL:
case AV_LOG_ERROR:
logger.error(msg.getString());
break;
case AV_LOG_WARNING:
logger.warn(msg.getString());
break;
case AV_LOG_INFO:
logger.info(msg.getString());
case AV_LOG_VERBOSE:
case AV_LOG_DEBUG:
case AV_LOG_TRACE:
logger.debug(msg.getString());
break;
default:
assert false;
}
}
}