diff options
Diffstat (limited to 'libs/android-transcoder/src/main/java/net/ypresto/androidtranscoder/utils/MediaExtractorUtils.java')
-rw-r--r-- | libs/android-transcoder/src/main/java/net/ypresto/androidtranscoder/utils/MediaExtractorUtils.java | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/libs/android-transcoder/src/main/java/net/ypresto/androidtranscoder/utils/MediaExtractorUtils.java b/libs/android-transcoder/src/main/java/net/ypresto/androidtranscoder/utils/MediaExtractorUtils.java new file mode 100644 index 000000000..b973d2f16 --- /dev/null +++ b/libs/android-transcoder/src/main/java/net/ypresto/androidtranscoder/utils/MediaExtractorUtils.java @@ -0,0 +1,63 @@ +/* + * Copyright (C) 2014 Yuya Tanaka + * + * 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.utils; + +import android.media.MediaExtractor; +import android.media.MediaFormat; + +public class MediaExtractorUtils { + + private MediaExtractorUtils() { + } + + public static class TrackResult { + + private TrackResult() { + } + + public int mVideoTrackIndex; + public String mVideoTrackMime; + public MediaFormat mVideoTrackFormat; + public int mAudioTrackIndex; + public String mAudioTrackMime; + public MediaFormat mAudioTrackFormat; + } + + public static TrackResult getFirstVideoAndAudioTrack(MediaExtractor extractor) { + TrackResult trackResult = new TrackResult(); + trackResult.mVideoTrackIndex = -1; + trackResult.mAudioTrackIndex = -1; + int trackCount = extractor.getTrackCount(); + for (int i = 0; i < trackCount; i++) { + MediaFormat format = extractor.getTrackFormat(i); + String mime = format.getString(MediaFormat.KEY_MIME); + if (trackResult.mVideoTrackIndex < 0 && mime.startsWith("video/")) { + trackResult.mVideoTrackIndex = i; + trackResult.mVideoTrackMime = mime; + trackResult.mVideoTrackFormat = format; + } else if (trackResult.mAudioTrackIndex < 0 && mime.startsWith("audio/")) { + trackResult.mAudioTrackIndex = i; + trackResult.mAudioTrackMime = mime; + trackResult.mAudioTrackFormat = format; + } + if (trackResult.mVideoTrackIndex >= 0 && trackResult.mAudioTrackIndex >= 0) break; + } + if (trackResult.mVideoTrackIndex < 0 || trackResult.mAudioTrackIndex < 0) { + throw new IllegalArgumentException("extractor does not contain video and/or audio tracks."); + } + return trackResult; + } +} |