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The source code is released under:
Apache License
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/* * Copyright (C) 2014 Yuya Tanaka//from w ww .j a va 2 s . co m * * 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 net.ypresto.androidtranscoder.engine; import android.media.MediaFormat; public interface TrackTranscoder { void setup(); /** * Get actual MediaFormat which is used to write to muxer. * To determine you should call {@link #determineFormat()}. * * @return Actual output format determined by coder, or {@code null} if not yet determined. */ MediaFormat getDeterminedFormat(); /** * You should call this after {@link #determineFormat()} and before {@link #stepPipeline()}. * When all transcoder added their tracks then you may call {@link android.media.MediaMuxer#start()}. */ void addTrackToMuxer(); /** * Fill pipeline without writing to muxer until actual output format is determined. * You should not select any tracks on MediaExtractor to determine correctly. */ void determineFormat(); /** * Step pipeline if output is available in any step of it. * It assumes muxer has been started, so you should call muxer.start() first. * * @return true if data moved in pipeline. */ boolean stepPipeline(); /** * Get presentation time of last sample written to muxer. * * @return Presentation time in micro-second. Return value is undefined if finished writing. */ long getWrittenPresentationTimeUs(); boolean isFinished(); void release(); }