65 lines
2.9 KiB
Java
65 lines
2.9 KiB
Java
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/*
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* Copyright (c) 2019 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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package org.webrtc;
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import android.support.annotation.Nullable;
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import org.webrtc.VideoFrame;
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/**
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* This class is meant to be a simple layer that only handles the JNI wrapping of a C++
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* AndroidVideoTrackSource, that can easily be mocked out in Java unit tests. Refrain from adding
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* any unnecessary logic to this class.
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*/
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class NativeAndroidVideoTrackSource {
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// Pointer to webrtc::jni::AndroidVideoTrackSource.
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private final long nativeAndroidVideoTrackSource;
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public NativeAndroidVideoTrackSource(long nativeAndroidVideoTrackSource) {
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this.nativeAndroidVideoTrackSource = nativeAndroidVideoTrackSource;
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}
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/**
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* Set the state for the native MediaSourceInterface. Maps boolean to either
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* SourceState::kLive or SourceState::kEnded.
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*/
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public void setState(boolean isLive) {
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nativeSetState(nativeAndroidVideoTrackSource, isLive);
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}
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/** Pass a frame to the native AndroidVideoTrackSource. */
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public void onFrameCaptured(VideoFrame frame) {
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nativeOnFrameCaptured(nativeAndroidVideoTrackSource, frame.getBuffer().getWidth(),
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frame.getBuffer().getHeight(), frame.getRotation(), frame.getTimestampNs(),
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frame.getBuffer());
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}
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/**
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* Calling this function will cause frames to be scaled down to the requested resolution. Also,
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* frames will be cropped to match the requested aspect ratio, and frames will be dropped to match
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* the requested fps.
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*/
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public void adaptOutputFormat(VideoSource.AspectRatio targetLandscapeAspectRatio,
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@Nullable Integer maxLandscapePixelCount, VideoSource.AspectRatio targetPortraitAspectRatio,
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@Nullable Integer maxPortraitPixelCount, @Nullable Integer maxFps) {
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nativeAdaptOutputFormat(nativeAndroidVideoTrackSource, targetLandscapeAspectRatio.width,
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targetLandscapeAspectRatio.height, maxLandscapePixelCount, targetPortraitAspectRatio.width,
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targetPortraitAspectRatio.height, maxPortraitPixelCount, maxFps);
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}
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private static native void nativeSetState(long nativeAndroidVideoTrackSource, boolean isLive);
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private static native void nativeAdaptOutputFormat(long nativeAndroidVideoTrackSource,
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int landscapeWidth, int landscapeHeight, @Nullable Integer maxLandscapePixelCount,
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int portraitWidth, int portraitHeight, @Nullable Integer maxPortraitPixelCount,
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@Nullable Integer maxFps);
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private static native void nativeOnFrameCaptured(long nativeAndroidVideoTrackSource, int width,
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int height, int rotation, long timestampNs, VideoFrame.Buffer buffer);
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}
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