Remove VideoEditor (e0e77cb5) · Commits · e / os / android_frameworks_base

media/java/android/media/videoeditor/AudioTrack.java

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		/*
		* Copyright (C) 2010 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 android.media.videoeditor;

		import java.io.File;
		import java.io.IOException;
		import java.lang.ref.SoftReference;

		import android.media.videoeditor.MediaArtistNativeHelper.Properties;

		/**
		* This class allows to handle an audio track. This audio file is mixed with the
		* audio samples of the media items.
		* {@hide}
		*/
		public class AudioTrack {

		/**
		* Instance variables
		* Private object for calling native methods via MediaArtistNativeHelper
		*/
		private final MediaArtistNativeHelper mMANativeHelper;
		private final String mUniqueId;
		private final String mFilename;
		private long mStartTimeMs;
		private long mTimelineDurationMs;
		private int mVolumePercent;
		private long mBeginBoundaryTimeMs;
		private long mEndBoundaryTimeMs;
		private boolean mLoop;
		private boolean mMuted;
		private final long mDurationMs;
		private final int mAudioChannels;
		private final int mAudioType;
		private final int mAudioBitrate;
		private final int mAudioSamplingFrequency;
		/**
		* Ducking variables
		*/
		private int mDuckingThreshold;
		private int mDuckedTrackVolume;
		private boolean mIsDuckingEnabled;

		/**
		* The audio waveform filename
		*/
		private String mAudioWaveformFilename;

		/**
		* The audio waveform data
		*/
		private SoftReference<WaveformData> mWaveformData;

		/**
		* An object of this type cannot be instantiated by using the default
		* constructor
		*/
		@SuppressWarnings("unused")
		private AudioTrack() throws IOException {
		this(null, null, null);
		}

		/**
		* Constructor
		*
		* @param editor The video editor reference
		* @param audioTrackId The audio track id
		* @param filename The absolute file name
		*
		* @throws IOException if file is not found
		* @throws IllegalArgumentException if file format is not supported or if
		* the codec is not supported or if editor is not of type
		* VideoEditorImpl.
		*/
		public AudioTrack(VideoEditor editor, String audioTrackId, String filename) throws IOException {
		this(editor, audioTrackId, filename, 0, 0, MediaItem.END_OF_FILE, false, 100, false, false,
		0, 0, null);
		}

		/**
		* Constructor
		*
		* @param editor The video editor reference
		* @param audioTrackId The audio track id
		* @param filename The audio filename. In case file contains Audio and Video,
		* only the Audio stream will be used as Audio Track.
		* @param startTimeMs the start time in milliseconds (relative to the
		* timeline)
		* @param beginMs start time in the audio track in milliseconds (relative to
		* the beginning of the audio track)
		* @param endMs end time in the audio track in milliseconds (relative to the
		* beginning of the audio track)
		* @param loop true to loop the audio track
		* @param volume The volume in percentage
		* @param muted true if the audio track is muted
		* @param threshold Ducking will be activated when the relative energy in
		* the media items audio signal goes above this value. The valid
		* range of values is 0 to 90.
		* @param duckedTrackVolume The relative volume of the audio track when
		* ducking is active. The valid range of values is 0 to 100.
		* @param audioWaveformFilename The name of the waveform file
		*
		* @throws IOException if file is not found
		* @throws IllegalArgumentException if file format is not supported or if
		* the codec is not supported or if editor is not of type
		* VideoEditorImpl.
		*/
		AudioTrack(VideoEditor editor, String audioTrackId, String filename,
		long startTimeMs,long beginMs, long endMs, boolean loop,
		int volume, boolean muted,boolean duckingEnabled,
		int duckThreshold, int duckedTrackVolume,
		String audioWaveformFilename) throws IOException {
		Properties properties = null;

		File file = new File(filename);
		if (!file.exists()) {
		throw new IOException(filename + " not found ! ");
		}

		/Compare file_size with 2GB/
		if (VideoEditor.MAX_SUPPORTED_FILE_SIZE <= file.length()) {
		throw new IllegalArgumentException("File size is more than 2GB");
		}

		if (editor instanceof VideoEditorImpl) {
		mMANativeHelper = ((VideoEditorImpl)editor).getNativeContext();
		} else {
		throw new IllegalArgumentException("editor is not of type VideoEditorImpl");
		}
		try {
		properties = mMANativeHelper.getMediaProperties(filename);
		} catch (Exception e) {
		throw new IllegalArgumentException(e.getMessage() + " : " + filename);
		}
		int fileType = mMANativeHelper.getFileType(properties.fileType);
		switch (fileType) {
		case MediaProperties.FILE_3GP:
		case MediaProperties.FILE_MP4:
		case MediaProperties.FILE_MP3:
		case MediaProperties.FILE_AMR:
		break;

		default: {
		throw new IllegalArgumentException("Unsupported input file type: " + fileType);
		}
		}
		switch (mMANativeHelper.getAudioCodecType(properties.audioFormat)) {
		case MediaProperties.ACODEC_AMRNB:
		case MediaProperties.ACODEC_AMRWB:
		case MediaProperties.ACODEC_AAC_LC:
		case MediaProperties.ACODEC_MP3:
		break;
		default:
		throw new IllegalArgumentException("Unsupported Audio Codec Format in Input File");
		}

		if (endMs == MediaItem.END_OF_FILE) {
		endMs = properties.audioDuration;
		}

		mUniqueId = audioTrackId;
		mFilename = filename;
		mStartTimeMs = startTimeMs;
		mDurationMs = properties.audioDuration;
		mAudioChannels = properties.audioChannels;
		mAudioBitrate = properties.audioBitrate;
		mAudioSamplingFrequency = properties.audioSamplingFrequency;
		mAudioType = properties.audioFormat;
		mTimelineDurationMs = endMs - beginMs;
		mVolumePercent = volume;

		mBeginBoundaryTimeMs = beginMs;
		mEndBoundaryTimeMs = endMs;

		mLoop = loop;
		mMuted = muted;
		mIsDuckingEnabled = duckingEnabled;
		mDuckingThreshold = duckThreshold;
		mDuckedTrackVolume = duckedTrackVolume;

		mAudioWaveformFilename = audioWaveformFilename;
		if (audioWaveformFilename != null) {
		mWaveformData =
		new SoftReference<WaveformData>(new WaveformData(audioWaveformFilename));
		} else {
		mWaveformData = null;
		}
		}

		/**
		* Get the id of the audio track
		*
		* @return The id of the audio track
		*/
		public String getId() {
		return mUniqueId;
		}

		/**
		* Get the filename for this audio track source.
		*
		* @return The filename as an absolute file name
		*/
		public String getFilename() {
		return mFilename;
		}

		/**
		* Get the number of audio channels in the source of this audio track
		*
		* @return The number of audio channels in the source of this audio track
		*/
		public int getAudioChannels() {
		return mAudioChannels;
		}

		/**
		* Get the audio codec of the source of this audio track
		*
		* @return The audio codec of the source of this audio track
		* {@link android.media.videoeditor.MediaProperties}
		*/
		public int getAudioType() {
		return mAudioType;
		}

		/**
		* Get the audio sample frequency of the audio track
		*
		* @return The audio sample frequency of the audio track
		*/
		public int getAudioSamplingFrequency() {
		return mAudioSamplingFrequency;
		}

		/**
		* Get the audio bitrate of the audio track
		*
		* @return The audio bitrate of the audio track
		*/
		public int getAudioBitrate() {
		return mAudioBitrate;
		}

		/**
		* Set the volume of this audio track as percentage of the volume in the
		* original audio source file.
		*
		* @param volumePercent Percentage of the volume to apply. If it is set to
		* 0, then volume becomes mute. It it is set to 100, then volume
		* is same as original volume. It it is set to 200, then volume
		* is doubled (provided that volume amplification is supported)
		*
		* @throws UnsupportedOperationException if volume amplification is
		* requested and is not supported.
		*/
		public void setVolume(int volumePercent) {
		if (volumePercent > MediaProperties.AUDIO_MAX_VOLUME_PERCENT) {
		throw new IllegalArgumentException("Volume set exceeds maximum allowed value");
		}

		if (volumePercent < 0) {
		throw new IllegalArgumentException("Invalid Volume ");
		}

		/**
		* Force update of preview settings
		*/
		mMANativeHelper.setGeneratePreview(true);

		mVolumePercent = volumePercent;
		}

		/**
		* Get the volume of the audio track as percentage of the volume in the
		* original audio source file.
		*
		* @return The volume in percentage
		*/
		public int getVolume() {
		return mVolumePercent;
		}

		/**
		* Mute/Unmute the audio track
		*
		* @param muted true to mute the audio track. SetMute(true) will make
		* the volume of this Audio Track to 0.
		*/
		public void setMute(boolean muted) {
		/**
		* Force update of preview settings
		*/
		mMANativeHelper.setGeneratePreview(true);
		mMuted = muted;
		}

		/**
		* Check if the audio track is muted
		*
		* @return true if the audio track is muted
		*/
		public boolean isMuted() {
		return mMuted;
		}

		/**
		* Get the start time of this audio track relative to the storyboard
		* timeline.
		*
		* @return The start time in milliseconds
		*/

		public long getStartTime() {
		return mStartTimeMs;
		}

		/**
		* Get the audio track duration
		*
		* @return The duration in milliseconds. This value represents actual audio
		* track duration. This value is not effected by 'enableLoop' or
		* 'setExtractBoundaries'.
		*/
		public long getDuration() {
		return mDurationMs;
		}

		/**
		* Get the audio track timeline duration
		*
		* @return The timeline duration as defined by the begin and end boundaries
		*/
		public long getTimelineDuration() {
		return mTimelineDurationMs;
		}

		/**
		* Sets the start and end marks for trimming an audio track
		*
		* @param beginMs start time in the audio track in milliseconds (relative to
		* the beginning of the audio track)
		* @param endMs end time in the audio track in milliseconds (relative to the
		* beginning of the audio track)
		*/
		public void setExtractBoundaries(long beginMs, long endMs) {
		if (beginMs > mDurationMs) {
		throw new IllegalArgumentException("Invalid start time");
		}
		if (endMs > mDurationMs) {
		throw new IllegalArgumentException("Invalid end time");
		}
		if (beginMs < 0) {
		throw new IllegalArgumentException("Invalid start time; is < 0");
		}
		if (endMs < 0) {
		throw new IllegalArgumentException("Invalid end time; is < 0");
		}

		/**
		* Force update of preview settings
		*/
		mMANativeHelper.setGeneratePreview(true);

		mBeginBoundaryTimeMs = beginMs;
		mEndBoundaryTimeMs = endMs;

		mTimelineDurationMs = mEndBoundaryTimeMs - mBeginBoundaryTimeMs;
		}

		/**
		* Get the boundary begin time
		*
		* @return The boundary begin time
		*/
		public long getBoundaryBeginTime() {
		return mBeginBoundaryTimeMs;
		}

		/**
		* Get the boundary end time
		*
		* @return The boundary end time
		*/
		public long getBoundaryEndTime() {
		return mEndBoundaryTimeMs;
		}

		/**
		* Enable the loop mode for this audio track. Note that only one of the
		* audio tracks in the timeline can have the loop mode enabled. When looping
		* is enabled the samples between mBeginBoundaryTimeMs and
		* mEndBoundaryTimeMs are looped.
		*/
		public void enableLoop() {
		if (!mLoop) {
		/**
		* Force update of preview settings
		*/
		mMANativeHelper.setGeneratePreview(true);
		mLoop = true;
		}
		}

		/**
		* Disable the loop mode
		*/
		public void disableLoop() {
		if (mLoop) {
		/**
		* Force update of preview settings
		*/
		mMANativeHelper.setGeneratePreview(true);
		mLoop = false;
		}
		}

		/**
		* Check if looping is enabled
		*
		* @return true if looping is enabled
		*/
		public boolean isLooping() {
		return mLoop;
		}

		/**
		* Disable the audio duck effect
		*/
		public void disableDucking() {
		if (mIsDuckingEnabled) {
		/**
		* Force update of preview settings
		*/
		mMANativeHelper.setGeneratePreview(true);
		mIsDuckingEnabled = false;
		}
		}

		/**
		* Enable ducking by specifying the required parameters
		*
		* @param threshold Ducking will be activated when the energy in
		* the media items audio signal goes above this value. The valid
		* range of values is 0db to 90dB. 0dB is equivalent to disabling
		* ducking.
		* @param duckedTrackVolume The relative volume of the audio track when ducking
		* is active. The valid range of values is 0 to 100.
		*/
		public void enableDucking(int threshold, int duckedTrackVolume) {
		if (threshold < 0 \|\| threshold > 90) {
		throw new IllegalArgumentException("Invalid threshold value: " + threshold);
		}

		if (duckedTrackVolume < 0 \|\| duckedTrackVolume > 100) {
		throw new IllegalArgumentException("Invalid duckedTrackVolume value: "
		+ duckedTrackVolume);
		}

		/**
		* Force update of preview settings
		*/
		mMANativeHelper.setGeneratePreview(true);

		mDuckingThreshold = threshold;
		mDuckedTrackVolume = duckedTrackVolume;
		mIsDuckingEnabled = true;
		}

		/**
		* Check if ducking is enabled
		*
		* @return true if ducking is enabled
		*/
		public boolean isDuckingEnabled() {
		return mIsDuckingEnabled;
		}

		/**
		* Get the ducking threshold.
		*
		* @return The ducking threshold
		*/
		public int getDuckingThreshhold() {
		return mDuckingThreshold;
		}

		/**
		* Get the ducked track volume.
		*
		* @return The ducked track volume
		*/
		public int getDuckedTrackVolume() {
		return mDuckedTrackVolume;
		}

		/**
		* This API allows to generate a file containing the sample volume levels of
		* this audio track object. This function may take significant time and is
		* blocking. The filename can be retrieved using getAudioWaveformFilename().
		*
		* @param listener The progress listener
		*
		* @throws IOException if the output file cannot be created
		* @throws IllegalArgumentException if the audio file does not have a valid
		* audio track
		* @throws IllegalStateException if the codec type is unsupported
		*/
		public void extractAudioWaveform(ExtractAudioWaveformProgressListener listener)
		throws IOException {
		if (mAudioWaveformFilename == null) {
		/**
		* AudioWaveformFilename is generated
		*/
		final String projectPath = mMANativeHelper.getProjectPath();
		final String audioWaveFilename = String.format(projectPath + "/audioWaveformFile-"
		+ getId() + ".dat");

		/**
		* Logic to get frame duration = (no. of frames per sample * 1000)/
		* sampling frequency
		*/
		final int frameDuration;
		final int sampleCount;
		final int codecType = mMANativeHelper.getAudioCodecType(mAudioType);
		switch (codecType) {
		case MediaProperties.ACODEC_AMRNB: {
		frameDuration = (MediaProperties.SAMPLES_PER_FRAME_AMRNB * 1000)
		/ MediaProperties.DEFAULT_SAMPLING_FREQUENCY;
		sampleCount = MediaProperties.SAMPLES_PER_FRAME_AMRNB;
		break;
		}

		case MediaProperties.ACODEC_AMRWB: {
		frameDuration = (MediaProperties.SAMPLES_PER_FRAME_AMRWB * 1000)
		/ MediaProperties.DEFAULT_SAMPLING_FREQUENCY;
		sampleCount = MediaProperties.SAMPLES_PER_FRAME_AMRWB;
		break;
		}

		case MediaProperties.ACODEC_AAC_LC: {
		frameDuration = (MediaProperties.SAMPLES_PER_FRAME_AAC * 1000)
		/ MediaProperties.DEFAULT_SAMPLING_FREQUENCY;
		sampleCount = MediaProperties.SAMPLES_PER_FRAME_AAC;
		break;
		}

		case MediaProperties.ACODEC_MP3: {
		frameDuration = (MediaProperties.SAMPLES_PER_FRAME_MP3 * 1000)
		/ MediaProperties.DEFAULT_SAMPLING_FREQUENCY;
		sampleCount = MediaProperties.SAMPLES_PER_FRAME_MP3;
		break;
		}

		default: {
		throw new IllegalStateException("Unsupported codec type: "
		+ codecType);
		}
		}

		mMANativeHelper.generateAudioGraph( mUniqueId,
		mFilename,
		audioWaveFilename,
		frameDuration,
		MediaProperties.DEFAULT_CHANNEL_COUNT,
		sampleCount,
		listener,
		false);
		/**
		* Record the generated file name
		*/
		mAudioWaveformFilename = audioWaveFilename;
		}
		mWaveformData = new SoftReference<WaveformData>(new WaveformData(mAudioWaveformFilename));
		}

		/**
		* Get the audio waveform file name if extractAudioWaveform was successful.
		*
		* @return the name of the file, null if the file does not exist
		*/
		String getAudioWaveformFilename() {
		return mAudioWaveformFilename;
		}

		/**
		* Delete the waveform file
		*/
		void invalidate() {
		if (mAudioWaveformFilename != null) {
		new File(mAudioWaveformFilename).delete();
		mAudioWaveformFilename = null;
		mWaveformData = null;
		}
		}

		/**
		* Get the audio waveform data.
		*
		* @return The waveform data
		*
		* @throws IOException if the waveform file cannot be found
		*/
		public WaveformData getWaveformData() throws IOException {
		if (mWaveformData == null) {
		return null;
		}

		WaveformData waveformData = mWaveformData.get();
		if (waveformData != null) {
		return waveformData;
		} else if (mAudioWaveformFilename != null) {
		try {
		waveformData = new WaveformData(mAudioWaveformFilename);
		} catch (IOException e) {
		throw e;
		}
		mWaveformData = new SoftReference<WaveformData>(waveformData);
		return waveformData;
		} else {
		return null;
		}
		}

		/*
		* {@inheritDoc}
		*/
		@Override
		public boolean equals(Object object) {
		if (!(object instanceof AudioTrack)) {
		return false;
		}
		return mUniqueId.equals(((AudioTrack)object).mUniqueId);
		}

		/*
		* {@inheritDoc}
		*/
		@Override
		public int hashCode() {
		return mUniqueId.hashCode();
		}
		}

media/java/android/media/videoeditor/Effect.java

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media/java/android/media/videoeditor/EffectColor.java

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media/java/android/media/videoeditor/EffectKenBurns.java

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		/*
		* Copyright (C) 2010 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 android.media.videoeditor;

		import android.graphics.Rect;

		/**
		* This class represents a Ken Burns effect.
		* {@hide}
		*/
		public class EffectKenBurns extends Effect {
		/**
		* Instance variables
		*/
		private Rect mStartRect;
		private Rect mEndRect;

		/**
		* Objects of this type cannot be instantiated by using the default
		* constructor
		*/
		@SuppressWarnings("unused")
		private EffectKenBurns() {
		this(null, null, null, null, 0, 0);
		}

		/**
		* Constructor
		*
		* @param mediaItem The media item owner
		* @param effectId The effect id
		* @param startRect The start rectangle
		* @param endRect The end rectangle
		* @param startTimeMs The start time
		* @param durationMs The duration of the Ken Burns effect in milliseconds
		*/
		public EffectKenBurns(MediaItem mediaItem, String effectId, Rect startRect,
		Rect endRect, long startTimeMs, long durationMs) {
		super(mediaItem, effectId, startTimeMs, durationMs);

		if ( (startRect.width() <= 0) \|\| (startRect.height() <= 0) ) {
		throw new IllegalArgumentException("Invalid Start rectangle");
		}
		if ( (endRect.width() <= 0) \|\| (endRect.height() <= 0) ) {
		throw new IllegalArgumentException("Invalid End rectangle");
		}

		mStartRect = startRect;
		mEndRect = endRect;
		}


		/**
		* Get the start rectangle.
		*
		* @return The start rectangle
		*/
		public Rect getStartRect() {
		return mStartRect;
		}


		/**
		* Get the end rectangle.
		*
		* @return The end rectangle
		*/
		public Rect getEndRect() {
		return mEndRect;
		}

		/**
		* Get the KenBurn effect start and end rectangle coordinates
		* @param start The rect object to be populated with start
		* rectangle coordinates
		*
		* @param end The rect object to be populated with end
		* rectangle coordinates
		*/
		void getKenBurnsSettings(Rect start, Rect end) {
		start.left = getStartRect().left;
		start.top = getStartRect().top;
		start.right = getStartRect().right;
		start.bottom = getStartRect().bottom;
		end.left = getEndRect().left;
		end.top = getEndRect().top;
		end.right = getEndRect().right;
		end.bottom = getEndRect().bottom;
		}
		}

media/java/android/media/videoeditor/ExtractAudioWaveformProgressListener.java

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