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Moving src/webrtc into src/.

Browse Source 
In order to eliminate the WebRTC Subtree mirror in Chromium, 
WebRTC is moving the content of the src/webrtc directory up
to the src/ directory.

NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
TBR=tommi@webrtc.org

Bug: chromium:611808
Change-Id: Iac59c5b51b950f174119565bac87955a7994bc38
Reviewed-on: https://webrtc-review.googlesource.com/1560
Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org>
Reviewed-by: Henrik Kjellander <kjellander@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#19845}
This commit is contained in:
Mirko Bonadei
2017-09-15 06:15:48 +02:00
committed by Commit Bot
parent 6674846b4a
commit bb547203bf
4576 changed files with 1092 additions and 1196 deletions
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247
sdk/android/api/org/webrtc/HardwareVideoEncoderFactory.java Normal file
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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 static org.webrtc.MediaCodecUtils.EXYNOS_PREFIX;
import static org.webrtc.MediaCodecUtils.INTEL_PREFIX;
import static org.webrtc.MediaCodecUtils.QCOM_PREFIX;
import android.media.MediaCodecInfo;
import android.media.MediaCodecList;
import android.os.Build;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
/** Factory for android hardware video encoders. */
@SuppressWarnings("deprecation") // API 16 requires the use of deprecated methods.
public class HardwareVideoEncoderFactory implements VideoEncoderFactory {
private static final String TAG = "HardwareVideoEncoderFactory";
// Forced key frame interval - used to reduce color distortions on Qualcomm platforms.
private static final int QCOM_VP8_KEY_FRAME_INTERVAL_ANDROID_L_MS = 15000;
private static final int QCOM_VP8_KEY_FRAME_INTERVAL_ANDROID_M_MS = 20000;
private static final int QCOM_VP8_KEY_FRAME_INTERVAL_ANDROID_N_MS = 15000;
// List of devices with poor H.264 encoder quality.
// HW H.264 encoder on below devices has poor bitrate control - actual
// bitrates deviates a lot from the target value.
private static final List<String> H264_HW_EXCEPTION_MODELS =
Arrays.asList("SAMSUNG-SGH-I337", "Nexus 7", "Nexus 4");
private final EglBase14.Context sharedContext;
private final boolean enableIntelVp8Encoder;
private final boolean enableH264HighProfile;
public HardwareVideoEncoderFactory(
EglBase.Context sharedContext, boolean enableIntelVp8Encoder, boolean enableH264HighProfile) {
// Texture mode requires EglBase14.
if (sharedContext instanceof EglBase14.Context) {
this.sharedContext = (EglBase14.Context) sharedContext;
} else {
Logging.w(TAG, "No shared EglBase.Context. Encoders will not use texture mode.");
this.sharedContext = null;
}
this.enableIntelVp8Encoder = enableIntelVp8Encoder;
this.enableH264HighProfile = enableH264HighProfile;
}
@Deprecated
public HardwareVideoEncoderFactory(boolean enableIntelVp8Encoder, boolean enableH264HighProfile) {
this(null, enableIntelVp8Encoder, enableH264HighProfile);
}
@Override
public VideoEncoder createEncoder(VideoCodecInfo input) {
VideoCodecType type = VideoCodecType.valueOf(input.name);
MediaCodecInfo info = findCodecForType(type);
if (info == null) {
return null; // No support for this type.
}
String codecName = info.getName();
String mime = type.mimeType();
int colorFormat = MediaCodecUtils.selectColorFormat(sharedContext == null
? MediaCodecUtils.ENCODER_COLOR_FORMATS
: MediaCodecUtils.TEXTURE_COLOR_FORMATS,
info.getCapabilitiesForType(mime));
return new HardwareVideoEncoder(codecName, type, colorFormat, input.params,
getKeyFrameIntervalSec(type), getForcedKeyFrameIntervalMs(type, codecName),
createBitrateAdjuster(type, codecName), sharedContext);
}
@Override
public VideoCodecInfo[] getSupportedCodecs() {
List<VideoCodecInfo> supportedCodecInfos = new ArrayList<VideoCodecInfo>();
// Generate a list of supported codecs in order of preference:
// VP8, VP9, H264 (high profile), and H264 (baseline profile).
for (VideoCodecType type :
new VideoCodecType[] {VideoCodecType.VP8, VideoCodecType.VP9, VideoCodecType.H264}) {
MediaCodecInfo codec = findCodecForType(type);
if (codec != null) {
String name = type.name();
if (type == VideoCodecType.H264 && isH264HighProfileSupported(codec)) {
supportedCodecInfos.add(new VideoCodecInfo(0, name, getCodecProperties(type, true)));
}
supportedCodecInfos.add(new VideoCodecInfo(0, name, getCodecProperties(type, false)));
}
}
return supportedCodecInfos.toArray(new VideoCodecInfo[supportedCodecInfos.size()]);
}
private MediaCodecInfo findCodecForType(VideoCodecType type) {
for (int i = 0; i < MediaCodecList.getCodecCount(); ++i) {
MediaCodecInfo info = null;
try {
info = MediaCodecList.getCodecInfoAt(i);
} catch (IllegalArgumentException e) {
Logging.e(TAG, "Cannot retrieve encoder codec info", e);
}
if (info == null || !info.isEncoder()) {
continue;
}
if (isSupportedCodec(info, type)) {
return info;
}
}
return null; // No support for this type.
}
// Returns true if the given MediaCodecInfo indicates a supported encoder for the given type.
private boolean isSupportedCodec(MediaCodecInfo info, VideoCodecType type) {
if (!MediaCodecUtils.codecSupportsType(info, type)) {
return false;
}
// Check for a supported color format.
if (MediaCodecUtils.selectColorFormat(sharedContext == null
? MediaCodecUtils.ENCODER_COLOR_FORMATS
: MediaCodecUtils.TEXTURE_COLOR_FORMATS,
info.getCapabilitiesForType(type.mimeType()))
== null) {
return false;
}
return isHardwareSupportedInCurrentSdk(info, type);
}
// Returns true if the given MediaCodecInfo indicates a hardware module that is supported on the
// current SDK.
private boolean isHardwareSupportedInCurrentSdk(MediaCodecInfo info, VideoCodecType type) {
switch (type) {
case VP8:
return isHardwareSupportedInCurrentSdkVp8(info);
case VP9:
return isHardwareSupportedInCurrentSdkVp9(info);
case H264:
return isHardwareSupportedInCurrentSdkH264(info);
}
return false;
}
private boolean isHardwareSupportedInCurrentSdkVp8(MediaCodecInfo info) {
String name = info.getName();
// QCOM Vp8 encoder is supported in KITKAT or later.
return (name.startsWith(QCOM_PREFIX) && Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT)
// Exynos VP8 encoder is supported in M or later.
|| (name.startsWith(EXYNOS_PREFIX) && Build.VERSION.SDK_INT >= Build.VERSION_CODES.M)
// Intel Vp8 encoder is supported in LOLLIPOP or later, with the intel encoder enabled.
|| (name.startsWith(INTEL_PREFIX) && Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP
&& enableIntelVp8Encoder);
}
private boolean isHardwareSupportedInCurrentSdkVp9(MediaCodecInfo info) {
String name = info.getName();
return (name.startsWith(QCOM_PREFIX) || name.startsWith(EXYNOS_PREFIX))
// Both QCOM and Exynos VP9 encoders are supported in N or later.
&& Build.VERSION.SDK_INT >= Build.VERSION_CODES.N;
}
private boolean isHardwareSupportedInCurrentSdkH264(MediaCodecInfo info) {
// First, H264 hardware might perform poorly on this model.
if (H264_HW_EXCEPTION_MODELS.contains(Build.MODEL)) {
return false;
}
String name = info.getName();
// QCOM H264 encoder is supported in KITKAT or later.
return (name.startsWith(QCOM_PREFIX) && Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT)
// Exynos H264 encoder is supported in LOLLIPOP or later.
|| (name.startsWith(EXYNOS_PREFIX)
&& Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP);
}
private int getKeyFrameIntervalSec(VideoCodecType type) {
switch (type) {
case VP8: // Fallthrough intended.
case VP9:
return 100;
case H264:
return 20;
}
throw new IllegalArgumentException("Unsupported VideoCodecType " + type);
}
private int getForcedKeyFrameIntervalMs(VideoCodecType type, String codecName) {
if (type == VideoCodecType.VP8 && codecName.startsWith(QCOM_PREFIX)) {
if (Build.VERSION.SDK_INT == Build.VERSION_CODES.LOLLIPOP
|| Build.VERSION.SDK_INT == Build.VERSION_CODES.LOLLIPOP_MR1) {
return QCOM_VP8_KEY_FRAME_INTERVAL_ANDROID_L_MS;
} else if (Build.VERSION.SDK_INT == Build.VERSION_CODES.M) {
return QCOM_VP8_KEY_FRAME_INTERVAL_ANDROID_M_MS;
} else if (Build.VERSION.SDK_INT > Build.VERSION_CODES.M) {
return QCOM_VP8_KEY_FRAME_INTERVAL_ANDROID_N_MS;
}
}
// Other codecs don't need key frame forcing.
return 0;
}
private BitrateAdjuster createBitrateAdjuster(VideoCodecType type, String codecName) {
if (codecName.startsWith(EXYNOS_PREFIX)) {
if (type == VideoCodecType.VP8) {
// Exynos VP8 encoders need dynamic bitrate adjustment.
return new DynamicBitrateAdjuster();
} else {
// Exynos VP9 and H264 encoders need framerate-based bitrate adjustment.
return new FramerateBitrateAdjuster();
}
}
// Other codecs don't need bitrate adjustment.
return new BaseBitrateAdjuster();
}
private boolean isH264HighProfileSupported(MediaCodecInfo info) {
return enableH264HighProfile && info.getName().startsWith(QCOM_PREFIX);
}
private Map<String, String> getCodecProperties(VideoCodecType type, boolean highProfile) {
switch (type) {
case VP8:
case VP9:
return new HashMap<String, String>();
case H264:
Map<String, String> properties = new HashMap<>();
properties.put(VideoCodecInfo.H264_FMTP_LEVEL_ASYMMETRY_ALLOWED, "1");
properties.put(VideoCodecInfo.H264_FMTP_PACKETIZATION_MODE, "1");
properties.put(VideoCodecInfo.H264_FMTP_PROFILE_LEVEL_ID,
highProfile ? VideoCodecInfo.H264_CONSTRAINED_HIGH_3_1
: VideoCodecInfo.H264_CONSTRAINED_BASELINE_3_1);
return properties;
default:
throw new IllegalArgumentException("Unsupported codec: " + type);
}
}
}