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/*
* Copyright 2017 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 android.media.MediaCodecInfo;
import android.media.MediaCodecInfo.CodecCapabilities;
import android.os.Build;
import android.support.annotation.Nullable;
import java.util.HashMap;
import java.util.Map;
/** Container class for static constants and helpers used with MediaCodec. */
// We are forced to use the old API because we want to support API level < 21.
@SuppressWarnings("deprecation")
class MediaCodecUtils {
private static final String TAG = "MediaCodecUtils";
// Prefixes for supported hardware encoder/decoder component names.
static final String EXYNOS_PREFIX = "OMX.Exynos.";
static final String INTEL_PREFIX = "OMX.Intel.";
static final String NVIDIA_PREFIX = "OMX.Nvidia.";
static final String QCOM_PREFIX = "OMX.qcom.";
static final String[] SOFTWARE_IMPLEMENTATION_PREFIXES = {"OMX.google.", "OMX.SEC."};
// NV12 color format supported by QCOM codec, but not declared in MediaCodec -
// see /hardware/qcom/media/mm-core/inc/OMX_QCOMExtns.h
static final int COLOR_QCOM_FORMATYVU420PackedSemiPlanar32m4ka = 0x7FA30C01;
static final int COLOR_QCOM_FORMATYVU420PackedSemiPlanar16m4ka = 0x7FA30C02;
static final int COLOR_QCOM_FORMATYVU420PackedSemiPlanar64x32Tile2m8ka = 0x7FA30C03;
static final int COLOR_QCOM_FORMATYUV420PackedSemiPlanar32m = 0x7FA30C04;
// Color formats supported by hardware decoder - in order of preference.
static final int[] DECODER_COLOR_FORMATS = new int[] {CodecCapabilities.COLOR_FormatYUV420Planar,
CodecCapabilities.COLOR_FormatYUV420SemiPlanar,
CodecCapabilities.COLOR_QCOM_FormatYUV420SemiPlanar,
MediaCodecUtils.COLOR_QCOM_FORMATYVU420PackedSemiPlanar32m4ka,
MediaCodecUtils.COLOR_QCOM_FORMATYVU420PackedSemiPlanar16m4ka,
MediaCodecUtils.COLOR_QCOM_FORMATYVU420PackedSemiPlanar64x32Tile2m8ka,
MediaCodecUtils.COLOR_QCOM_FORMATYUV420PackedSemiPlanar32m};
// Color formats supported by hardware encoder - in order of preference.
static final int[] ENCODER_COLOR_FORMATS = {
MediaCodecInfo.CodecCapabilities.COLOR_FormatYUV420Planar,
MediaCodecInfo.CodecCapabilities.COLOR_FormatYUV420SemiPlanar,
MediaCodecInfo.CodecCapabilities.COLOR_QCOM_FormatYUV420SemiPlanar,
MediaCodecUtils.COLOR_QCOM_FORMATYUV420PackedSemiPlanar32m};
// Color formats supported by texture mode encoding - in order of preference.
static final int[] TEXTURE_COLOR_FORMATS = getTextureColorFormats();
private static int[] getTextureColorFormats() {
if (Build.VERSION.SDK_INT >= 18) {
return new int[] {MediaCodecInfo.CodecCapabilities.COLOR_FormatSurface};
} else {
return new int[] {};
}
}
static @Nullable Integer selectColorFormat(
int[] supportedColorFormats, CodecCapabilities capabilities) {
for (int supportedColorFormat : supportedColorFormats) {
for (int codecColorFormat : capabilities.colorFormats) {
if (codecColorFormat == supportedColorFormat) {
return codecColorFormat;
}
}
}
return null;
}
static boolean codecSupportsType(MediaCodecInfo info, VideoCodecMimeType type) {
for (String mimeType : info.getSupportedTypes()) {
if (type.mimeType().equals(mimeType)) {
return true;
}
}
return false;
}
static Map<String, String> getCodecProperties(VideoCodecMimeType type, boolean highProfile) {
switch (type) {
case VP8:
case VP9:
return new HashMap<String, String>();
case H264:
return H264Utils.getDefaultH264Params(highProfile);
default:
throw new IllegalArgumentException("Unsupported codec: " + type);
}
}
private MediaCodecUtils() {
// This class should not be instantiated.
}
}
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