Examples with MediaCodecInfo android.media.MediaCodecInfo used on opensource projects

Example 56 with MediaCodecInfo

use of android.media.MediaCodecInfo in project android_frameworks_base by ResurrectionRemix.

the class CpuVideoTrackDecoder method findDecoderCodec.

/**
     * Looks for a codec with the specified requirements.
     *
     * The set of codecs will be filtered down to those that meet the following requirements:
     * <ol>
     *   <li>The codec is a decoder.</li>
     *   <li>The codec can decode a video of the specified format.</li>
     *   <li>The codec can decode to one of the specified color formats.</li>
     * </ol>
     * If multiple codecs are found, the one with the preferred color-format is taken. Color format
     * preference is determined by the order of their appearance in the color format array.
     *
     * @param format The format the codec must decode.
     * @param requiredColorFormats Array of target color spaces ordered by preference.
     * @return A codec that meets the requirements, or null if no such codec was found.
     */
private static MediaCodec findDecoderCodec(MediaFormat format, int[] requiredColorFormats) {
    TreeMap<Integer, String> candidateCodecs = new TreeMap<Integer, String>();
    SparseIntArray colorPriorities = intArrayToPriorityMap(requiredColorFormats);
    for (int i = 0; i < MediaCodecList.getCodecCount(); ++i) {
        // Get next codec
        MediaCodecInfo info = MediaCodecList.getCodecInfoAt(i);
        // Check that this is a decoder
        if (info.isEncoder()) {
            continue;
        }
        // Check if this codec can decode the video in question
        String requiredType = format.getString(MediaFormat.KEY_MIME);
        String[] supportedTypes = info.getSupportedTypes();
        Set<String> typeSet = new HashSet<String>(Arrays.asList(supportedTypes));
        // Check if it can decode to one of the required color formats
        if (typeSet.contains(requiredType)) {
            CodecCapabilities capabilities = info.getCapabilitiesForType(requiredType);
            for (int supportedColorFormat : capabilities.colorFormats) {
                if (colorPriorities.indexOfKey(supportedColorFormat) >= 0) {
                    int priority = colorPriorities.get(supportedColorFormat);
                    candidateCodecs.put(priority, info.getName());
                }
            }
        }
    }
    // Pick the best codec (with the highest color priority)
    if (candidateCodecs.isEmpty()) {
        return null;
    } else {
        String bestCodec = candidateCodecs.firstEntry().getValue();
        try {
            return MediaCodec.createByCodecName(bestCodec);
        } catch (IOException e) {
            throw new RuntimeException("failed to create codec for " + bestCodec, e);
        }
    }
}

Example 57 with MediaCodecInfo

use of android.media.MediaCodecInfo in project android_frameworks_base by ResurrectionRemix.

the class MediaCodecList method initCodecList.

private static final void initCodecList() {
    synchronized (sInitLock) {
        if (sRegularCodecInfos == null) {
            int count = native_getCodecCount();
            ArrayList<MediaCodecInfo> regulars = new ArrayList<MediaCodecInfo>();
            ArrayList<MediaCodecInfo> all = new ArrayList<MediaCodecInfo>();
            for (int index = 0; index < count; index++) {
                try {
                    MediaCodecInfo info = getNewCodecInfoAt(index);
                    all.add(info);
                    info = info.makeRegular();
                    if (info != null) {
                        regulars.add(info);
                    }
                } catch (Exception e) {
                    Log.e(TAG, "Could not get codec capabilities", e);
                }
            }
            sRegularCodecInfos = regulars.toArray(new MediaCodecInfo[regulars.size()]);
            sAllCodecInfos = all.toArray(new MediaCodecInfo[all.size()]);
        }
    }
}

Example 58 with MediaCodecInfo

use of android.media.MediaCodecInfo in project android_frameworks_base by crdroidandroid.

the class CpuVideoTrackDecoder method findDecoderCodec.

/**
     * Looks for a codec with the specified requirements.
     *
     * The set of codecs will be filtered down to those that meet the following requirements:
     * <ol>
     *   <li>The codec is a decoder.</li>
     *   <li>The codec can decode a video of the specified format.</li>
     *   <li>The codec can decode to one of the specified color formats.</li>
     * </ol>
     * If multiple codecs are found, the one with the preferred color-format is taken. Color format
     * preference is determined by the order of their appearance in the color format array.
     *
     * @param format The format the codec must decode.
     * @param requiredColorFormats Array of target color spaces ordered by preference.
     * @return A codec that meets the requirements, or null if no such codec was found.
     */
private static MediaCodec findDecoderCodec(MediaFormat format, int[] requiredColorFormats) {
    TreeMap<Integer, String> candidateCodecs = new TreeMap<Integer, String>();
    SparseIntArray colorPriorities = intArrayToPriorityMap(requiredColorFormats);
    for (int i = 0; i < MediaCodecList.getCodecCount(); ++i) {
        // Get next codec
        MediaCodecInfo info = MediaCodecList.getCodecInfoAt(i);
        // Check that this is a decoder
        if (info.isEncoder()) {
            continue;
        }
        // Check if this codec can decode the video in question
        String requiredType = format.getString(MediaFormat.KEY_MIME);
        String[] supportedTypes = info.getSupportedTypes();
        Set<String> typeSet = new HashSet<String>(Arrays.asList(supportedTypes));
        // Check if it can decode to one of the required color formats
        if (typeSet.contains(requiredType)) {
            CodecCapabilities capabilities = info.getCapabilitiesForType(requiredType);
            for (int supportedColorFormat : capabilities.colorFormats) {
                if (colorPriorities.indexOfKey(supportedColorFormat) >= 0) {
                    int priority = colorPriorities.get(supportedColorFormat);
                    candidateCodecs.put(priority, info.getName());
                }
            }
        }
    }
    // Pick the best codec (with the highest color priority)
    if (candidateCodecs.isEmpty()) {
        return null;
    } else {
        String bestCodec = candidateCodecs.firstEntry().getValue();
        try {
            return MediaCodec.createByCodecName(bestCodec);
        } catch (IOException e) {
            throw new RuntimeException("failed to create codec for " + bestCodec, e);
        }
    }
}

Example 59 with MediaCodecInfo

use of android.media.MediaCodecInfo in project speechutils by Kaljurand.

the class AudioUtils method getEncoderNamesForType.

/**
 * Maps the given mime type to a list of names of suitable codecs.
 * Only OMX-codecs are considered.
 */
@TargetApi(Build.VERSION_CODES.JELLY_BEAN)
public static List<String> getEncoderNamesForType(String mime) {
    LinkedList<String> names = new LinkedList<>();
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
        int n = MediaCodecList.getCodecCount();
        for (int i = 0; i < n; ++i) {
            MediaCodecInfo info = MediaCodecList.getCodecInfoAt(i);
            if (!info.isEncoder()) {
                continue;
            }
            // TODO: do we still need this?
            if (!info.getName().startsWith("OMX.")) {
                // Unfortunately for legacy reasons, "AACEncoder", a
                // non OMX component had to be in this list for the video
                // editor code to work... but it cannot actually be instantiated
                // using MediaCodec.
                Log.i("skipping '" + info.getName() + "'.");
                continue;
            }
            String[] supportedTypes = info.getSupportedTypes();
            for (String type : supportedTypes) {
                if (type.equalsIgnoreCase(mime)) {
                    names.push(info.getName());
                    break;
                }
            }
        }
    }
    // TODO: maybe return null or throw exception
    return names;
}

Example 60 with MediaCodecInfo

use of android.media.MediaCodecInfo in project speechutils by Kaljurand.

the class AudioUtils method getAvailableEncoders.

// TODO: use MediaFormat.MIMETYPE_AUDIO_FLAC) on API>=21
@TargetApi(Build.VERSION_CODES.LOLLIPOP)
public static List<String> getAvailableEncoders(String mime, int sampleRate) {
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
        MediaFormat format = MediaFormatFactory.createMediaFormat(mime, 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()) {
                String name = info.getName();
                String infoAsStr = name + ": " + TextUtils.join(", ", info.getSupportedTypes());
                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
                    infoAsStr += String.format(": %s/%s/%s/%s", info.isHardwareAccelerated(), info.isSoftwareOnly(), info.isAlias(), info.isVendor());
                }
                if (name.equals(encoderAsStr)) {
                    infoAsStr = '#' + infoAsStr;
                }
                encoders.add(infoAsStr);
            }
        }
        return encoders;
    }
    return Collections.emptyList();
}