Java MediaCodecInfo类代码示例

import android.media.MediaCodecInfo; //导入依赖的package包/类
/**
 * Initialize HeifReader module.
 *
 * @param context Context.
 */
public static void initialize(Context context) {
    mRenderScript = RenderScript.create(context);
    mCacheDir = context.getCacheDir();

    // find best HEVC decoder
    mDecoderName = null;
    mDecoderSupportedSize = new Size(0, 0);
    int numCodecs = MediaCodecList.getCodecCount();
    for (int i = 0; i < numCodecs; i++) {
        MediaCodecInfo codecInfo = MediaCodecList.getCodecInfoAt(i);
        if (codecInfo.isEncoder()) {
            continue;
        }
        for (String type : codecInfo.getSupportedTypes()) {
            if (type.equalsIgnoreCase(MediaFormat.MIMETYPE_VIDEO_HEVC)) {
                MediaCodecInfo.CodecCapabilities cap = codecInfo.getCapabilitiesForType(MediaFormat.MIMETYPE_VIDEO_HEVC);
                MediaCodecInfo.VideoCapabilities vcap = cap.getVideoCapabilities();
                Size supportedSize = new Size(vcap.getSupportedWidths().getUpper(), vcap.getSupportedHeights().getUpper());
                Log.d(TAG, "HEVC decoder=\"" + codecInfo.getName() + "\""
                        + " supported-size=" + supportedSize
                        + " color-formats=" + Arrays.toString(cap.colorFormats)
                );
                if (mDecoderSupportedSize.getWidth() * mDecoderSupportedSize.getHeight() < supportedSize.getWidth() * supportedSize.getHeight()) {
                    mDecoderName = codecInfo.getName();
                    mDecoderSupportedSize = supportedSize;
                }
            }
        }
    }
    if (mDecoderName == null) {
        throw new RuntimeException("no HEVC decoding support");
    }
    Log.i(TAG, "HEVC decoder=\"" + mDecoderName + "\" supported-size=" + mDecoderSupportedSize);
}
 

import android.media.MediaCodecInfo; //导入依赖的package包/类
/**
 * Configures encoder and muxer state, and prepares the input Surface.
 */
public VideoEncoderCore(int width, int height, int bitRate, MMediaMuxer MMediaMuxer)
        throws IOException {
    super(MMediaMuxer);

    MediaFormat format = MediaFormat.createVideoFormat(MIME_TYPE, width, height);

    // Set some properties.  Failing to specify some of these can cause the MediaCodec
    // configure() call to throw an unhelpful exception.
    format.setInteger(MediaFormat.KEY_COLOR_FORMAT,
            MediaCodecInfo.CodecCapabilities.COLOR_FormatSurface);
    format.setInteger(MediaFormat.KEY_BIT_RATE, calcBitRate(width,height));
    format.setInteger(MediaFormat.KEY_FRAME_RATE, FRAME_RATE);
    format.setInteger(MediaFormat.KEY_I_FRAME_INTERVAL, IFRAME_INTERVAL);
    if (VERBOSE) Log.d(TAG, "format: " + format);

    // Create a MediaCodec encoder, and configure it with our format.  Get a Surface
    // we can use for input and wrap it with a class that handles the EGL work.
    mEncoder = MediaCodec.createEncoderByType(MIME_TYPE);
    mEncoder.configure(format, null, null, MediaCodec.CONFIGURE_FLAG_ENCODE);

    mInputSurface = mEncoder.createInputSurface();
    mEncoder.start();
}
 

import android.media.MediaCodecInfo; //导入依赖的package包/类
/**
 * Returns the first codec capable of encoding the specified MIME type, or null if no match was
 * found.
 */
@TargetApi(18)
public static MediaCodecInfo selectCodec(String mimeType) {
    int numCodecs = MediaCodecList.getCodecCount();
    for (int i = 0; i < numCodecs; i++) {
        MediaCodecInfo codecInfo = MediaCodecList.getCodecInfoAt(i);
        if (!codecInfo.isEncoder()) {
            continue;
        }
        String[] types = codecInfo.getSupportedTypes();
        for (int j = 0; j < types.length; j++) {
            if (types[j].equalsIgnoreCase(mimeType)) {
                return codecInfo;
            }
        }
    }
    return null;
}
 

import android.media.MediaCodecInfo; //导入依赖的package包/类
@TargetApi(21)
    public static MediaCodec getVideoMediaCodec() {
        int videoWidth = getVideoSize(Options.getInstance().video.width);
        int videoHeight = getVideoSize(Options.getInstance().video.height);
        MediaFormat format = MediaFormat.createVideoFormat(Options.getInstance().video.mime, videoWidth, videoHeight);
        format.setInteger(MediaFormat.KEY_COLOR_FORMAT,
                MediaCodecInfo.CodecCapabilities.COLOR_FormatSurface);
        format.setInteger(MediaFormat.KEY_BIT_RATE, Options.getInstance().video.maxBps* 1024);
        int fps = Options.getInstance().video.fps;
        //设置摄像头预览帧率
//        if(BlackListHelper.deviceInFpsBlacklisted()) {
//            SopCastLog.d(SopCastConstant.TAG, "Device in fps setting black list, so set mediacodec fps 15");
//            fps = 15;
//        }
        format.setInteger(MediaFormat.KEY_FRAME_RATE, fps);
        format.setInteger(MediaFormat.KEY_I_FRAME_INTERVAL, Options.getInstance().video.ifi);
        format.setInteger(MediaFormat.KEY_BITRATE_MODE, MediaCodecInfo.EncoderCapabilities.BITRATE_MODE_VBR);
        format.setInteger(MediaFormat.KEY_COMPLEXITY, MediaCodecInfo.EncoderCapabilities.BITRATE_MODE_CBR);
        MediaCodec mediaCodec = null;

        try {
            mediaCodec = MediaCodec.createEncoderByType(Options.getInstance().video.mime);
            mediaCodec.configure(format, null, null, MediaCodec.CONFIGURE_FLAG_ENCODE);
        }catch (Exception e) {
            e.printStackTrace();
            if (mediaCodec != null) {
                mediaCodec.stop();
                mediaCodec.release();
                mediaCodec = null;
            }
        }
        return mediaCodec;
    }
 

import android.media.MediaCodecInfo; //导入依赖的package包/类
@RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
private void printInfo() {
	MediaCodecList list = new MediaCodecList(MediaCodecList.ALL_CODECS);
	MediaCodecInfo[] codecInfos = list.getCodecInfos();
	for (MediaCodecInfo info : codecInfos) {
		if (info.isEncoder()) {
			StringBuilder sb = new StringBuilder();
			sb.append(info.getName() + " types=");
			String[] supportedTypes = info.getSupportedTypes();
			for (String string : supportedTypes) {
				sb.append(" " + string);
			}
			LogUtil.e(sb.toString());
		}
	}
}
 

import android.media.MediaCodecInfo; //导入依赖的package包/类
public static void showCodecInfo() {
    int mediaCodecCount = MediaCodecList.getCodecCount();

    for (int i = 0; i < mediaCodecCount; i++) {
        MediaCodecInfo mediaCodecInfo = MediaCodecList.getCodecInfoAt(i);
        if (!mediaCodecInfo.isEncoder()) {
            continue;
        }

        Log.e(ERROR_TAGE, "CodecName:" + mediaCodecInfo.getName());
        String types[] = mediaCodecInfo.getSupportedTypes();

        String strTypes = "";
        for (int j = 0; j < types.length; j++) {
            if (!strTypes.isEmpty()) {
                final String SPLITE = ",  ";
                strTypes += SPLITE;
            }
            strTypes += types[j];
        }

        Log.e(ERROR_TAGE, "Suport Type:" + strTypes);
    }
}
 

import android.media.MediaCodecInfo; //导入依赖的package包/类
private static String FindHardWareEncoder16(String mime) {
    int mediaCodecCount = MediaCodecList.getCodecCount();

    for (int i = 0; i < mediaCodecCount; i++) {
        MediaCodecInfo mediaCodecInfo = MediaCodecList.getCodecInfoAt(i);
        if (!mediaCodecInfo.isEncoder()) {
            continue;
        }

        String types[] = mediaCodecInfo.getSupportedTypes();
        for (int j = 0; j < types.length; j++) {
            if (types[j].equalsIgnoreCase(mime)) {
                String decoderName = mediaCodecInfo.getName();
                Log.e(ERROR_TAGE, "hwDecoderName = " + decoderName);
                boolean isHardwareEncode = (decoderName.indexOf("google") == -1);
                if (isHardwareEncode) {
                    return decoderName;
                }
            }
        }
    }

    return null;
}
 

import android.media.MediaCodecInfo; //导入依赖的package包/类
/**
 * select the first codec that match a specific MIME type
 * @param mimeType
 * @return null if no codec matched
 */
protected static final MediaCodecInfo selectVideoCodec(final String mimeType) {
	if (DEBUG) Log.v(TAG, "selectVideoCodec:");

	// get the list of available codecs
    final int numCodecs = MediaCodecList.getCodecCount();
    for (int i = 0; i < numCodecs; i++) {
    	final MediaCodecInfo codecInfo = MediaCodecList.getCodecInfoAt(i);

        if (!codecInfo.isEncoder()) {	// skipp decoder
            continue;
        }
        // select first codec that match a specific MIME type and color format
        final String[] types = codecInfo.getSupportedTypes();
        for (int j = 0; j < types.length; j++) {
            if (types[j].equalsIgnoreCase(mimeType)) {
            	if (DEBUG) Log.i(TAG, "codec:" + codecInfo.getName() + ",MIME=" + types[j]);
        		final int format = selectColorFormat(codecInfo, mimeType);
            	if (format > 0) {
            		return codecInfo;
            	}
            }
        }
    }
    return null;
}
 

import android.media.MediaCodecInfo; //导入依赖的package包/类
/**
 * select the first codec that match a specific MIME type
 *
 * @param mimeType
 * @return null if no codec matched
 */
protected static final MediaCodecInfo selectVideoCodec(final String mimeType) {
    if (DEBUG) Log.v(TAG, "selectVideoCodec:");

    // get the list of available codecs
    final int numCodecs = MediaCodecList.getCodecCount();
    for (int i = 0; i < numCodecs; i++) {
        final MediaCodecInfo codecInfo = MediaCodecList.getCodecInfoAt(i);

        if (!codecInfo.isEncoder()) {    // skipp decoder
            continue;
        }
        // select first codec that match a specific MIME type and color format
        final String[] types = codecInfo.getSupportedTypes();
        for (int j = 0; j < types.length; j++) {
            if (types[j].equalsIgnoreCase(mimeType)) {
                if (DEBUG) Log.i(TAG, "codec:" + codecInfo.getName() + ",MIME=" + types[j]);
                final int format = selectColorFormat(codecInfo, mimeType);
                if (format > 0) {
                    return codecInfo;
                }
            }
        }
    }
    return null;
}
 

import android.media.MediaCodecInfo; //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;
}
 

import android.media.MediaCodecInfo; //导入依赖的package包/类
@SuppressLint("NewApi")
public static MediaCodecInfo selectCodec(String mimeType) {
    int numCodecs = MediaCodecList.getCodecCount();
    MediaCodecInfo lastCodecInfo = null;
    for (int i = 0; i < numCodecs; i++) {
        MediaCodecInfo codecInfo = MediaCodecList.getCodecInfoAt(i);
        if (!codecInfo.isEncoder()) {
            continue;
        }
        String[] types = codecInfo.getSupportedTypes();
        for (String type : types) {
            if (type.equalsIgnoreCase(mimeType)) {
                lastCodecInfo = codecInfo;
                if (!lastCodecInfo.getName().equals("OMX.SEC.avc.enc")) {
                    return lastCodecInfo;
                } else if (lastCodecInfo.getName().equals("OMX.SEC.AVC.Encoder")) {
                    return lastCodecInfo;
                }
            }
        }
    }
    return lastCodecInfo;
}
 

import android.media.MediaCodecInfo; //导入依赖的package包/类
/**
 * select the first codec that match a specific MIME type
 *
 * @param mimeType
 * @return
 */
private static final MediaCodecInfo selectAudioCodec(final String mimeType) {
    if (DEBUG) Log.v(TAG, "selectAudioCodec:");

    MediaCodecInfo result = null;
    // get the list of available codecs
    final int numCodecs = MediaCodecList.getCodecCount();
    LOOP:
    for (int i = 0; i < numCodecs; i++) {
        final MediaCodecInfo codecInfo = MediaCodecList.getCodecInfoAt(i);
        if (!codecInfo.isEncoder()) {    // skipp decoder
            continue;
        }
        final String[] types = codecInfo.getSupportedTypes();
        for (int j = 0; j < types.length; j++) {
            if (DEBUG) Log.i(TAG, "supportedType:" + codecInfo.getName() + ",MIME=" + types[j]);
            if (types[j].equalsIgnoreCase(mimeType)) {
                if (result == null) {
                    result = codecInfo;
                    break LOOP;
                }
            }
        }
    }
    return result;
}
 

import android.media.MediaCodecInfo; //导入依赖的package包/类
/**
     * select the first codec that match a specific MIME type
     * @param mimeType
     * @return
     */
    private static final MediaCodecInfo selectAudioCodec(final String mimeType) {
    	if (DEBUG) Log.v(TAG, "selectAudioCodec:");

    	MediaCodecInfo result = null;
    	// get the list of available codecs
        final int numCodecs = MediaCodecList.getCodecCount();
LOOP:	for (int i = 0; i < numCodecs; i++) {
        	final MediaCodecInfo codecInfo = MediaCodecList.getCodecInfoAt(i);
            if (!codecInfo.isEncoder()) {	// skipp decoder
                continue;
            }
            final String[] types = codecInfo.getSupportedTypes();
            for (int j = 0; j < types.length; j++) {
            	if (DEBUG) Log.i(TAG, "supportedType:" + codecInfo.getName() + ",MIME=" + types[j]);
                if (types[j].equalsIgnoreCase(mimeType)) {
                	if (result == null) {
                		result = codecInfo;
               			break LOOP;
                	}
                }
            }
        }
   		return result;
    }
 

import android.media.MediaCodecInfo; //导入依赖的package包/类
private static MediaCodecInfo selectAudioCodec(final String mimeType) {
    // get the list of available codecs
    final int numCodecs = MediaCodecList.getCodecCount();
    for (int i = 0; i < numCodecs; i++) {
        final MediaCodecInfo codecInfo = MediaCodecList.getCodecInfoAt(i);

        if (!codecInfo.isEncoder()) {    // skipp decoder
            continue;
        }
        final String[] types = codecInfo.getSupportedTypes();
        for (String type : types) {
            if (type.equalsIgnoreCase(mimeType)) {
                return codecInfo;
            }
        }
    }
    return null;
}
 

import android.media.MediaCodecInfo; //导入依赖的package包/类
@TargetApi(MIN_API_LEVEL_AUDIO)
public static int checkMediaCodecAudioEncoderSupport(){
    if(getApiLevel()<MIN_API_LEVEL_AUDIO){
        Log.d(TAG, "checkMediaCodecAudioEncoderSupport: Min API is 16");
        return CODEC_REQ_API_NOT_SATISFIED;
    }
    final MediaFormat audioFormat = MediaFormat.createAudioFormat(MIME_TYPE_AUDIO, TEST_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, TEST_AUDIO_BIT_RATE);
    audioFormat.setInteger(MediaFormat.KEY_CHANNEL_COUNT, 1);
    MediaCodec mediaCodec;
    try {
        mediaCodec = MediaCodec.createEncoderByType(MIME_TYPE_AUDIO);
        mediaCodec.configure(audioFormat, null, null, MediaCodec.CONFIGURE_FLAG_ENCODE);
        mediaCodec.start();
        mediaCodec.stop();
        mediaCodec.release();
        mediaCodec = null;
    } catch (Exception ex) {
        Log.e(TAG, "Failed on creation of codec #", ex);
        return CODEC_ERROR;
    }
    return CODEC_SUPPORTED;
}