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/*
* Copyright (c) 2017, Xevo Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of the copyright holder nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.smartdevicelink.proxy.interfaces;
import java.nio.ByteBuffer;
/**
* A listener that receives video streaming data from app.
*/
public interface IVideoStreamListener {
/**
* Sends a chunk of data which represents a frame to SDL Core.
* <p>
* The format of the chunk should align with MediaCodec's "Compressed Buffer" format, i.e. it
* should contain a single video frame, and it should start and end on frame boundaries.
* Please refer to https://developer.android.com/reference/android/media/MediaCodec.html
* Also, for H.264 codec case the stream must be in byte-stream format (also known as Annex-B
* format). This isn't explained in the document above, but MediaCodec does output in this
* format.
* <p>
* In short, you can just provide MediaCodec's data outputs to this method without tweaking
* any data.
* <p>
* Note: this method must not be called after SdlProxyBase.endVideoStream() is called.
*
* @param data Byte array containing a video frame
* @param offset Starting offset in 'data'
* @param length Length of the data
* @param presentationTimeUs Presentation timestamp (PTS) of this frame, in microseconds.
* It must be greater than the previous timestamp.
* Specify -1 if unknown.
* @throws ArrayIndexOutOfBoundsException When offset does not satisfy
* {@code 0 <= offset && offset <= data.length}
* or length does not satisfy
* {@code 0 < length && offset + length <= data.length}
*/
void sendFrame(byte[] data, int offset, int length, long presentationTimeUs)
throws ArrayIndexOutOfBoundsException;
/**
* Sends chunks of data which represent a frame to SDL Core.
* <p>
* The format of the chunk should align with MediaCodec's "Compressed Buffer" format, i.e. it
* should contain a single video frame, and it should start and end on frame boundaries.
* Please refer to https://developer.android.com/reference/android/media/MediaCodec.html
* Also, for H.264 codec case the stream must be in byte-stream format (also known as Annex-B
* format). This isn't explained in the document above, but MediaCodec does output in this
* format.
* <p>
* In short, you can just provide MediaCodec's data outputs to this method without tweaking
* any data.
* <p>
* Note: this method must not be called after SdlProxyBase.endVideoStream() is called.
*
* @param data Data chunk to send. Its position will be updated upon return.
* @param presentationTimeUs Presentation timestamp (PTS) of this frame, in microseconds.
* It must be greater than the previous timestamp.
* Specify -1 if unknown.
*/
void sendFrame(ByteBuffer data, long presentationTimeUs);
}
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