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Java MediaFormat类代码示例

本文整理汇总了Java中android.media.MediaFormat类的典型用法代码示例。如果您正苦于以下问题：Java MediaFormat类的具体用法？Java MediaFormat怎么用？Java MediaFormat使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。


MediaFormat类属于android.media包，在下文中一共展示了MediaFormat类的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。

示例1: selectTrack

import android.media.MediaFormat; //导入依赖的package包/类
private MediaFormat selectTrack(MediaExtractor extractor) {
    int trackCount = extractor.getTrackCount();
    Log.d(TAG, "trackCount :" + trackCount);

    MediaFormat format;
    for (int i = 0; i < trackCount; i++) {
        extractor.selectTrack(i);
        format = extractor.getTrackFormat(i);
        Log.d(TAG, "Track media format :" + format.toString());

        String mime = format.getString(MediaFormat.KEY_MIME);
        if (mime.startsWith("video/")) {
            return format;
        }
    }

    return null;
}
开发者ID:ficklerobot，项目名称:grid-video-viewer，代码行数:19，代码来源:DecodeThread.java

示例2: setup

import android.media.MediaFormat; //导入依赖的package包/类
@Override
public void setup() throws IOException {
    mExtractor.selectTrack(mTrackIndex);
    mEncoder = MediaCodec.createEncoderByType(mOutputFormat.getString(MediaFormat.KEY_MIME));
    mEncoder.configure(mOutputFormat, null, null, MediaCodec.CONFIGURE_FLAG_ENCODE);
    mEncoder.start();
    mEncoderStarted = true;

    final MediaFormat inputFormat = mExtractor.getTrackFormat(mTrackIndex);
    mDecoder = MediaCodec.createDecoderByType(inputFormat.getString(MediaFormat.KEY_MIME));
    mDecoder.configure(inputFormat, null, null, 0);
    mDecoder.start();
    mDecoderStarted = true;

    mAudioChannel = new AudioChannel(mDecoder, mEncoder, mOutputFormat);
}
开发者ID:uestccokey，项目名称:EZFilter，代码行数:17，代码来源:AudioTrackTranscoder.java

示例3: getDuration

import android.media.MediaFormat; //导入依赖的package包/类
/**
 * 获取视频信息
 *
 * @param url
 * @return
 */
public static long getDuration(String url) {
	try {
		MediaExtractor mediaExtractor = new MediaExtractor();
		mediaExtractor.setDataSource(url);
		int videoExt = TrackUtils.selectVideoTrack(mediaExtractor);
		if(videoExt == -1){
			videoExt = TrackUtils.selectAudioTrack(mediaExtractor);
			if(videoExt == -1){
				return 0;
			}
		}
		MediaFormat mediaFormat = mediaExtractor.getTrackFormat(videoExt);
		long res = mediaFormat.containsKey(MediaFormat.KEY_DURATION) ? mediaFormat.getLong(MediaFormat.KEY_DURATION) : 0;//时长
		mediaExtractor.release();
		return res;
	} catch (Exception e) {
		return 0;
	}
}
开发者ID:yangjie10930，项目名称:EpMedia，代码行数:26，代码来源:VideoUitls.java

示例4: open

import android.media.MediaFormat; //导入依赖的package包/类
@Override
public Point open(SurfaceTexture surface) {
    try {
        if(!extractMedia()){
            return new Point(0,0);
        }
        mFrameSem=new Semaphore(0);
        mDecodeSem=new Semaphore(1);
        videoProvideEndFlag=false;
        isUserWantToStop=false;
        mAudioEncodeTrack=mStore.addTrack(mExtractor.getTrackFormat(mAudioDecodeTrack));
        MediaFormat format=mExtractor.getTrackFormat(mVideoDecodeTrack);
        mVideoDecoder = MediaCodec.createDecoderByType(format.getString(MediaFormat.KEY_MIME));
        mVideoDecoder.configure(format,new Surface(surface),null,0);
        mVideoDecoder.start();
        startDecodeThread();
    } catch (IOException e) {
        e.printStackTrace();
    }
    return mVideoSize;
}
开发者ID:aiyaapp，项目名称:AAVT，代码行数:22，代码来源:Mp4Provider.java

示例5: setup

import android.media.MediaFormat; //导入依赖的package包/类
@Override
    public void setup() throws IOException {
        mExtractor.selectTrack(mTrackIndex);
        mEncoder = MediaCodec.createEncoderByType(mOutputFormat.getString(MediaFormat.KEY_MIME));
        mEncoder.configure(mOutputFormat, null, null, MediaCodec.CONFIGURE_FLAG_ENCODE);
        mEncoderInputSurfaceWrapper = new InputSurface(mEncoder.createInputSurface());
        mEncoder.start();
        mEncoderStarted = true;
        mEncoderOutputBuffers = mEncoder.getOutputBuffers();

        MediaFormat inputFormat = mExtractor.getTrackFormat(mTrackIndex);
//        if (inputFormat.containsKey(MediaUtil.KEY_ROTATION)) {
//            // Decoded video is rotated automatically in Android 5.0 lollipop.
//            // Turn off here because we don't want to encode rotated one.
//            // refer: https://android.googlesource
//            // .com/platform/frameworks/av/+blame/lollipop-release/media/libstagefright/Utils.cpp
//            inputFormat.setInteger(MediaUtil.KEY_ROTATION, 0);
//        }

        mDecoderOutputSurfaceWrapper = new OutputSurface(mSurfaceRender);
        mDecoder = MediaCodec.createDecoderByType(inputFormat.getString(MediaFormat.KEY_MIME));
        mDecoder.configure(inputFormat, mDecoderOutputSurfaceWrapper.getSurface(), null, 0);
        mDecoder.start();
        mDecoderStarted = true;
        mDecoderInputBuffers = mDecoder.getInputBuffers();
    }
开发者ID:uestccokey，项目名称:EZFilter，代码行数:27，代码来源:VideoTrackTranscoder.java

示例6: recorderEncoderLoop

import android.media.MediaFormat; //导入依赖的package包/类
/**
 * Reads bytes from the given recorder and encodes them with the given encoder.
 * Uses the (deprecated) Synchronous Processing using Buffer Arrays.
 * <p/>
 * Encoders (or codecs that generate compressed data) will create and return the codec specific
 * data before any valid output buffer in output buffers marked with the codec-config flag.
 * Buffers containing codec-specific-data have no meaningful timestamps.
 */
@TargetApi(Build.VERSION_CODES.JELLY_BEAN)
private void recorderEncoderLoop(MediaCodec codec, SpeechRecord speechRecord) {
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
        codec.start();
        // Getting some buffers (e.g. 4 of each) to communicate with the codec
        ByteBuffer[] codecInputBuffers = codec.getInputBuffers();
        ByteBuffer[] codecOutputBuffers = codec.getOutputBuffers();
        Log.i("input buffers " + codecInputBuffers.length + "; output buffers: " + codecOutputBuffers.length);
        boolean doneSubmittingInput = false;
        int numRetriesDequeueOutputBuffer = 0;
        int index;
        while (true) {
            if (!doneSubmittingInput) {
                index = codec.dequeueInputBuffer(DEQUEUE_TIMEOUT);
                if (index >= 0) {
                    int size = queueInputBuffer(codec, codecInputBuffers, index, speechRecord);
                    if (size == -1) {
                        codec.queueInputBuffer(index, 0, 0, 0, MediaCodec.BUFFER_FLAG_END_OF_STREAM);
                        Log.i("enc: in: EOS");
                        doneSubmittingInput = true;
                    } else {
                        Log.i("enc: in: " + size);
                        mNumBytesSubmitted += size;
                    }
                } else {
                    Log.i("enc: in: timeout, will try again");
                }
            }
            MediaCodec.BufferInfo info = new MediaCodec.BufferInfo();
            index = codec.dequeueOutputBuffer(info, DEQUEUE_TIMEOUT);
            Log.i("enc: out: flags/index: " + info.flags + "/" + index);
            if (index == MediaCodec.INFO_TRY_AGAIN_LATER) {
                Log.i("enc: out: INFO_TRY_AGAIN_LATER: " + numRetriesDequeueOutputBuffer);
                if (++numRetriesDequeueOutputBuffer > MAX_NUM_RETRIES_DEQUEUE_OUTPUT_BUFFER) {
                    break;
                }
            } else if (index == MediaCodec.INFO_OUTPUT_FORMAT_CHANGED) {
                MediaFormat format = codec.getOutputFormat();
                Log.i("enc: out: INFO_OUTPUT_FORMAT_CHANGED: " + format.toString());
            } else if (index == MediaCodec.INFO_OUTPUT_BUFFERS_CHANGED) {
                codecOutputBuffers = codec.getOutputBuffers();
                Log.i("enc: out: INFO_OUTPUT_BUFFERS_CHANGED");
            } else {
                dequeueOutputBuffer(codec, codecOutputBuffers, index, info);
                mNumBytesDequeued += info.size;
                if ((info.flags & MediaCodec.BUFFER_FLAG_END_OF_STREAM) != 0) {
                    Log.i("enc: out: EOS");
                    break;
                }
            }
        }
        codec.stop();
        codec.release();
    }
}
开发者ID:vaibhavs4424，项目名称:AI-Powered-Intelligent-Banking-Platform，代码行数:64，代码来源:EncodedAudioRecorder.java

示例7: configureDecoder

import android.media.MediaFormat; //导入依赖的package包/类
private static MediaCodec configureDecoder(ImageInfo info, int maxInputSize, Surface surface) {
    if (mDecoderSupportedSize.getWidth() < info.size.getWidth() || mDecoderSupportedSize.getHeight() < info.size.getHeight()) {
        Log.w(TAG, "HEVC image may exceed decoder capability");
    }
    try {
        MediaCodec decoder = MediaCodec.createByCodecName(mDecoderName);
        MediaFormat inputFormat = MediaFormat.createVideoFormat(
                MediaFormat.MIMETYPE_VIDEO_HEVC, info.size.getWidth(), info.size.getHeight());
        inputFormat.setInteger(MediaFormat.KEY_MAX_INPUT_SIZE, maxInputSize);
        inputFormat.setByteBuffer("csd-0", info.paramset);
        Log.d(TAG, "HEVC input-format=" + inputFormat);
        decoder.configure(inputFormat, surface, null, 0);
        return decoder;
    }  catch (IOException ex) {
        throw new RuntimeException("no HEVC decoding support");
    }
}
开发者ID:yohhoy，项目名称:heifreader，代码行数:18，代码来源:HeifReader.java

示例8: getAvailableEncoders

import android.media.MediaFormat; //导入依赖的package包/类
@TargetApi(Build.VERSION_CODES.LOLLIPOP)
public static List<String> getAvailableEncoders(int sampleRate) {
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
        MediaFormat format = MediaFormatFactory.createMediaFormat(MediaFormatFactory.Type.FLAC, sampleRate);
        MediaCodecList mcl = new MediaCodecList(MediaCodecList.REGULAR_CODECS);
        String encoderAsStr = mcl.findEncoderForFormat(format);
        List<String> encoders = new ArrayList<>();
        for (MediaCodecInfo info : mcl.getCodecInfos()) {
            if (info.isEncoder()) {
                if (info.getName().equals(encoderAsStr)) {
                    encoders.add("*** " + info.getName() + ": " + TextUtils.join(", ", info.getSupportedTypes()));
                } else {
                    encoders.add(info.getName() + ": " + TextUtils.join(", ", info.getSupportedTypes()));
                }
            }
        }
        return encoders;
    }
    return Collections.emptyList();
}
开发者ID:vaibhavs4424，项目名称:AI-Powered-Intelligent-Banking-Platform，代码行数:21，代码来源:AudioUtils.java

示例9: recorderLoop

import android.media.MediaFormat; //导入依赖的package包/类
@TargetApi(Build.VERSION_CODES.JELLY_BEAN)
@Override
protected void recorderLoop(SpeechRecord speechRecord) {
    mNumBytesSubmitted = 0;
    mNumBytesDequeued = 0;
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
        MediaFormat format = MediaFormatFactory.createMediaFormat(MediaFormatFactory.Type.FLAC, getSampleRate());
        List<String> componentNames = AudioUtils.getEncoderNamesForType(format.getString(MediaFormat.KEY_MIME));
        for (String componentName : componentNames) {
            Log.i("component/format: " + componentName + "/" + format);
            MediaCodec codec = AudioUtils.createCodec(componentName, format);
            if (codec != null) {
                recorderEncoderLoop(codec, speechRecord);
                if (Log.DEBUG) {
                    AudioUtils.showMetrics(format, mNumBytesSubmitted, mNumBytesDequeued);
                }
                break; // TODO: we use the first one that is suitable
            }
        }
    }
}
开发者ID:vaibhavs4424，项目名称:AI-Powered-Intelligent-Banking-Platform，代码行数:22，代码来源:EncodedAudioRecorder.java

示例10: createMediaCodecFormat

import android.media.MediaFormat; //导入依赖的package包/类
private MediaFormat createMediaCodecFormat(int colorFmt, int width, int height, Integer profile, Integer level){
    String mime = mEncodeFormat.getValue(); // "video/avc"

    MediaFormat mediaFormat = MediaFormat.createVideoFormat(mime, width, height);
    mediaFormat.setInteger(MediaFormat.KEY_COLOR_FORMAT, colorFmt);
    mediaFormat.setInteger(MediaFormat.KEY_BIT_RATE, mBitRate);
    mediaFormat.setFloat(MediaFormat.KEY_FRAME_RATE, (float) mFrameRate*1.0f);
    mediaFormat.setInteger(MediaFormat.KEY_I_FRAME_INTERVAL, mIFrameInterval);

    if(null != profile)
    {
        //mediaFormat.setInteger(MediaFormat.KEY_PROFILE, MediaCodecInfo.CodecProfileLevel.AVCProfileHigh);
        mediaFormat.setInteger(MediaFormat.KEY_PROFILE, profile.intValue());
    }

    if(null != level)
    {
        //mediaFormat.setInteger(MediaFormat.KEY_LEVEL, MediaCodecInfo.CodecProfileLevel.AVCLevel4);
        //mediaFormat.setInteger(MediaFormat.KEY_LEVEL, level.intValue());
    }

    return mediaFormat;
}
开发者ID:lzmlsfe，项目名称:19porn，代码行数:24，代码来源:VideoEncoder.java

示例11: createMediaCodec

import android.media.MediaFormat; //导入依赖的package包/类
private MediaCodec createMediaCodec(int bufferSize) throws IOException {
  MediaCodec  mediaCodec  = MediaCodec.createEncoderByType("audio/mp4a-latm");
  MediaFormat mediaFormat = new MediaFormat();

  mediaFormat.setString(MediaFormat.KEY_MIME, "audio/mp4a-latm");
  mediaFormat.setInteger(MediaFormat.KEY_SAMPLE_RATE, SAMPLE_RATE);
  mediaFormat.setInteger(MediaFormat.KEY_CHANNEL_COUNT, CHANNELS);
  mediaFormat.setInteger(MediaFormat.KEY_MAX_INPUT_SIZE, bufferSize);
  mediaFormat.setInteger(MediaFormat.KEY_BIT_RATE, BIT_RATE);
  mediaFormat.setInteger(MediaFormat.KEY_AAC_PROFILE, MediaCodecInfo.CodecProfileLevel.AACObjectLC);

  try {
    mediaCodec.configure(mediaFormat, null, null, MediaCodec.CONFIGURE_FLAG_ENCODE);
  } catch (Exception e) {
    Log.w(TAG, e);
    mediaCodec.release();
    throw new IOException(e);
  }

  return mediaCodec;
}
开发者ID:XecureIT，项目名称:PeSanKita-android，代码行数:22，代码来源:AudioCodec.java

示例12: createMediaFormat

import android.media.MediaFormat; //导入依赖的package包/类
@TargetApi(Build.VERSION_CODES.JELLY_BEAN)
public static MediaFormat createMediaFormat(Type type, int sampleRate) {
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
        MediaFormat format = new MediaFormat();
        // TODO: this causes a crash in MediaCodec.configure
        //format.setString(MediaFormat.KEY_FRAME_RATE, null);
        format.setInteger(MediaFormat.KEY_SAMPLE_RATE, sampleRate);
        format.setInteger(MediaFormat.KEY_CHANNEL_COUNT, 1);
        if (type == Type.AAC) {
            format.setString(MediaFormat.KEY_MIME, "audio/mp4a-latm");
            format.setInteger(MediaFormat.KEY_AAC_PROFILE, 2); // TODO: or 39?
            format.setInteger(MediaFormat.KEY_BIT_RATE, 64000);
        } else if (type == Type.FLAC) {
            //format.setString(MediaFormat.KEY_MIME, MediaFormat.MIMETYPE_AUDIO_FLAC); // API=21
            format.setString(MediaFormat.KEY_MIME, "audio/flac");
            format.setInteger(MediaFormat.KEY_BIT_RATE, 64000);
            //TODO: use another bit rate, does not seem to have effect always
            //format.setInteger(MediaFormat.KEY_BIT_RATE, 128000);
        } else {
            format.setString(MediaFormat.KEY_MIME, "audio/amr-wb");
            format.setInteger(MediaFormat.KEY_BIT_RATE, 23050);
        }
        return format;
    }
    return null;
}
开发者ID:vaibhavs4424，项目名称:AI-Powered-Intelligent-Banking-Platform，代码行数:27，代码来源:MediaFormatFactory.java

示例13: getFirstVideoAndAudioTrack

import android.media.MediaFormat; //导入依赖的package包/类
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;
}
开发者ID:SavorGit，项目名称:Hotspot-master-devp，代码行数:25，代码来源:MediaExtractorUtils.java

示例14: mediaFormatFromStaticPayloadType

import android.media.MediaFormat; //导入依赖的package包/类
private static MediaFormat mediaFormatFromStaticPayloadType(String m, int p) {
    MediaFormat format = null;
    PayloadFormat payloadFormat = PayloadFormat.staticPayloadType(p);
    if (payloadFormat != null) {
        switch (m.toLowerCase()) {
            case "audio":
                format = MediaFormat.createAudioFormat(
                        payloadFormat.mimeType,
                        payloadFormat.clockRate,
                        payloadFormat.channelCount);

                break;
            case "video":
                // TODO: Video not supported. Not sure how to get video dimensions
                //format = MediaFormat.createVideoFormat();

                // Perhaps just set MIME type
                //format = new MediaFormat();
                //format.setString(MediaFormat.KEY_MIME, payloadFormat.mimeType);
                break;
        }
    }

    return format;
}
开发者ID:devinbrown7，项目名称:streaminglib，代码行数:26，代码来源:MediaFormatHelper.java

示例15: AudioEncoderCore

import android.media.MediaFormat; //导入依赖的package包/类
public AudioEncoderCore(MMediaMuxer MMediaMuxer) throws IOException {
        super(MMediaMuxer);
        final MediaFormat audioFormat = MediaFormat.createAudioFormat(MIME_TYPE, SAMPLE_RATE, 1);
        audioFormat.setInteger(MediaFormat.KEY_AAC_PROFILE, MediaCodecInfo.CodecProfileLevel.AACObjectLC);
        audioFormat.setInteger(MediaFormat.KEY_CHANNEL_MASK, AudioFormat.CHANNEL_IN_MONO);
        audioFormat.setInteger(MediaFormat.KEY_BIT_RATE, BIT_RATE);
        audioFormat.setInteger(MediaFormat.KEY_CHANNEL_COUNT, 1);
//		audioFormat.setLong(MediaFormat.KEY_MAX_INPUT_SIZE, inputFile.length());
//      audioFormat.setLong(MediaFormat.KEY_DURATION, (long)durationInMs );
        if (VERBOSE) Log.i(TAG, "format: " + audioFormat);
        mEncoder = MediaCodec.createEncoderByType(MIME_TYPE);
        mEncoder.configure(audioFormat, null, null, MediaCodec.CONFIGURE_FLAG_ENCODE);
        mEncoder.start();
        if (mAudioThread == null) {
            mAudioThread = new AudioThread();
            mAudioThread.start();
            capturing=true;
            stopped=false;
        }
    }
开发者ID:zhangyaqiang，项目名称:Fatigue-Detection，代码行数:21，代码来源:AudioEncoderCore.java


注：本文中的android.media.MediaFormat类示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。