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Diffstat (limited to '')
-rw-r--r-- | third_party/libwebrtc/sdk/android/api/org/webrtc/MediaStreamTrack.java | 129 |
1 files changed, 129 insertions, 0 deletions
diff --git a/third_party/libwebrtc/sdk/android/api/org/webrtc/MediaStreamTrack.java b/third_party/libwebrtc/sdk/android/api/org/webrtc/MediaStreamTrack.java new file mode 100644 index 0000000000..2e4c3e18f7 --- /dev/null +++ b/third_party/libwebrtc/sdk/android/api/org/webrtc/MediaStreamTrack.java @@ -0,0 +1,129 @@ +/* + * Copyright 2013 The WebRTC project authors. All Rights Reserved. + * + * Use of this source code is governed by a BSD-style license + * that can be found in the LICENSE file in the root of the source + * tree. An additional intellectual property rights grant can be found + * in the file PATENTS. All contributing project authors may + * be found in the AUTHORS file in the root of the source tree. + */ + +package org.webrtc; + +import androidx.annotation.Nullable; + +/** Java wrapper for a C++ MediaStreamTrackInterface. */ +public class MediaStreamTrack { + public static final String AUDIO_TRACK_KIND = "audio"; + public static final String VIDEO_TRACK_KIND = "video"; + + /** Tracks MediaStreamTrackInterface.TrackState */ + public enum State { + LIVE, + ENDED; + + @CalledByNative("State") + static State fromNativeIndex(int nativeIndex) { + return values()[nativeIndex]; + } + } + + // Must be kept in sync with cricket::MediaType. + public enum MediaType { + MEDIA_TYPE_AUDIO(0), + MEDIA_TYPE_VIDEO(1); + + private final int nativeIndex; + + private MediaType(int nativeIndex) { + this.nativeIndex = nativeIndex; + } + + @CalledByNative("MediaType") + int getNative() { + return nativeIndex; + } + + @CalledByNative("MediaType") + static MediaType fromNativeIndex(int nativeIndex) { + for (MediaType type : MediaType.values()) { + if (type.getNative() == nativeIndex) { + return type; + } + } + throw new IllegalArgumentException("Unknown native media type: " + nativeIndex); + } + } + + /** Factory method to create an AudioTrack or VideoTrack subclass. */ + static @Nullable MediaStreamTrack createMediaStreamTrack(long nativeTrack) { + if (nativeTrack == 0) { + return null; + } + String trackKind = nativeGetKind(nativeTrack); + if (trackKind.equals(AUDIO_TRACK_KIND)) { + return new AudioTrack(nativeTrack); + } else if (trackKind.equals(VIDEO_TRACK_KIND)) { + return new VideoTrack(nativeTrack); + } else { + return null; + } + } + + private long nativeTrack; + + public MediaStreamTrack(long nativeTrack) { + if (nativeTrack == 0) { + throw new IllegalArgumentException("nativeTrack may not be null"); + } + this.nativeTrack = nativeTrack; + } + + public String id() { + checkMediaStreamTrackExists(); + return nativeGetId(nativeTrack); + } + + public String kind() { + checkMediaStreamTrackExists(); + return nativeGetKind(nativeTrack); + } + + public boolean enabled() { + checkMediaStreamTrackExists(); + return nativeGetEnabled(nativeTrack); + } + + public boolean setEnabled(boolean enable) { + checkMediaStreamTrackExists(); + return nativeSetEnabled(nativeTrack, enable); + } + + public State state() { + checkMediaStreamTrackExists(); + return nativeGetState(nativeTrack); + } + + public void dispose() { + checkMediaStreamTrackExists(); + JniCommon.nativeReleaseRef(nativeTrack); + nativeTrack = 0; + } + + long getNativeMediaStreamTrack() { + checkMediaStreamTrackExists(); + return nativeTrack; + } + + private void checkMediaStreamTrackExists() { + if (nativeTrack == 0) { + throw new IllegalStateException("MediaStreamTrack has been disposed."); + } + } + + private static native String nativeGetId(long track); + private static native String nativeGetKind(long track); + private static native boolean nativeGetEnabled(long track); + private static native boolean nativeSetEnabled(long track, boolean enabled); + private static native State nativeGetState(long track); +} |