uk.co.modularaudio.mads.base.soundfile_player.mu.SoundfilePlayerIOQueueBridge.java Source code

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Here is the source code for uk.co.modularaudio.mads.base.soundfile_player.mu.SoundfilePlayerIOQueueBridge.java

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/**
 *
 * Copyright (C) 2015 - Daniel Hams, Modular Audio Limited
 *                      daniel.hams@gmail.com
 *
 * Mad is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Mad is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Mad.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

package uk.co.modularaudio.mads.base.soundfile_player.mu;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import uk.co.modularaudio.service.blockresampler.BlockResamplingClient;
import uk.co.modularaudio.util.audio.mad.ioqueue.IOQueueEvent;
import uk.co.modularaudio.util.audio.mad.ioqueue.MadLocklessQueueBridge;
import uk.co.modularaudio.util.audio.mad.ioqueue.ThreadSpecificTemporaryEventStorage;

public class SoundfilePlayerIOQueueBridge extends MadLocklessQueueBridge<SoundfilePlayerMadInstance> {
    private static Log log = LogFactory.getLog(SoundfilePlayerIOQueueBridge.class.getName());

    public static final int COMMAND_IN_ACTIVE = 1;
    public static final int COMMAND_IN_PLAYING_STATE = 2;
    public static final int COMMAND_IN_PLAY_SPEED = 3;
    public static final int COMMAND_IN_RESAMPLED_SAMPLE = 4;
    public static final int COMMAND_IN_SHUTTLE_REWIND_TO_START = 5;
    public static final int COMMAND_IN_SHUTTLE_FFWD_TO_END = 6;
    public static final int COMMAND_IN_SHUTTLE_REWIND_BEGIN = 7;
    public static final int COMMAND_IN_SHUTTLE_REWIND_END = 8;
    public static final int COMMAND_IN_SHUTTLE_FFWD_BEGIN = 9;
    public static final int COMMAND_IN_SHUTTLE_FFWD_END = 10;
    public static final int COMMAND_IN_SHUTTLE_SET_POSITION_END = 11;

    public static final int COMMAND_IN_POSITION_JUMP = 12;

    public static final int COMMAND_IN_GAIN = 13;

    public static final int COMMAND_OUT_RECYCLE_SAMPLE = 16;

    public static final int COMMAND_OUT_STATE_CHANGE = 17;
    public static final int COMMAND_OUT_FRAME_POSITION_ABS = 18;
    public static final int COMMAND_OUT_FRAME_POSITION_DELTA = 19;
    public static final int COMMAND_OUT_FRAME_POSITION_ABS_WAIT_FOR_CACHE = 20;

    public SoundfilePlayerIOQueueBridge() {
    }

    @Override
    public void receiveQueuedEventsToInstance(final SoundfilePlayerMadInstance instance,
            final ThreadSpecificTemporaryEventStorage tses, final long periodTimestamp,
            final IOQueueEvent queueEntry) {
        switch (queueEntry.command) {
        case COMMAND_IN_ACTIVE: {
            instance.active = queueEntry.value == 1;
            break;
        }
        case COMMAND_IN_PLAYING_STATE: {
            final int value = (int) queueEntry.value;
            final SoundfilePlayerMadInstance.PlayingState desiredState = SoundfilePlayerMadInstance.PlayingState
                    .values()[value];
            instance.setDesiredState(desiredState);
            break;
        }
        case COMMAND_IN_PLAY_SPEED: {
            final float value = Float.intBitsToFloat(((int) queueEntry.value));
            instance.setDesiredPlaySpeed(value);
            break;
        }
        case COMMAND_IN_GAIN: {
            final float value = Float.intBitsToFloat(((int) queueEntry.value));
            instance.setDesiredGain(value);
            break;
        }
        case COMMAND_IN_RESAMPLED_SAMPLE: {
            final BlockResamplingClient prevSample = instance.getResampledSample();
            final BlockResamplingClient resampledSample = (BlockResamplingClient) queueEntry.object;
            instance.setResampledSample(resampledSample);
            if (prevSample != null) {
                // Get the UI to clean up the previously used one
                queueCommandEventToUi(tses, COMMAND_OUT_RECYCLE_SAMPLE, 0, prevSample);
            }
            break;
        }
        case COMMAND_IN_SHUTTLE_REWIND_TO_START: {
            final BlockResamplingClient curSample = instance.getResampledSample();
            if (curSample != null) {
                instance.resetFramePosition(0);
                instance.addJobForSampleCachingService();

                queueTemporalEventToUi(tses, periodTimestamp, COMMAND_OUT_FRAME_POSITION_ABS, 0, curSample);
            }
            break;
        }
        case COMMAND_IN_SHUTTLE_FFWD_TO_END: {
            final BlockResamplingClient curSample = instance.getResampledSample();
            if (curSample != null) {
                final long lastFrameNum = curSample.getTotalNumFrames() - 1;
                instance.resetFramePosition(lastFrameNum);
                instance.addJobForSampleCachingService();

                queueTemporalEventToUi(tses, periodTimestamp, COMMAND_OUT_FRAME_POSITION_ABS, lastFrameNum,
                        curSample);
            }
            break;
        }
        case COMMAND_IN_POSITION_JUMP: {
            final long newPosition = queueEntry.value;
            final BlockResamplingClient curSample = instance.getResampledSample();
            if (curSample != null) {
                instance.resetFramePosition(newPosition);
                instance.addJobForSampleCachingService();

                queueTemporalEventToUi(tses, periodTimestamp, COMMAND_OUT_FRAME_POSITION_ABS_WAIT_FOR_CACHE,
                        newPosition, curSample);
            }
            break;
        }
        default: {
            final String msg = "Unknown command passed on incoming queue: " + queueEntry.command;
            log.error(msg);
            break;
        }
        }
    }
}