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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 java.util.Map;
import java.util.HashMap;
/** Container for static helper functions related to dealing with H264 codecs. */
class H264Utils {
public static final String H264_FMTP_PROFILE_LEVEL_ID = "profile-level-id";
public static final String H264_FMTP_LEVEL_ASYMMETRY_ALLOWED = "level-asymmetry-allowed";
public static final String H264_FMTP_PACKETIZATION_MODE = "packetization-mode";
public static final String H264_PROFILE_CONSTRAINED_BASELINE = "42e0";
public static final String H264_PROFILE_CONSTRAINED_HIGH = "640c";
public static final String H264_LEVEL_3_1 = "1f"; // 31 in hex.
public static final String H264_CONSTRAINED_HIGH_3_1 =
H264_PROFILE_CONSTRAINED_HIGH + H264_LEVEL_3_1;
public static final String H264_CONSTRAINED_BASELINE_3_1 =
H264_PROFILE_CONSTRAINED_BASELINE + H264_LEVEL_3_1;
public static Map<String, String> getDefaultH264Params(boolean isHighProfile) {
final Map<String, String> params = new HashMap<>();
params.put(VideoCodecInfo.H264_FMTP_LEVEL_ASYMMETRY_ALLOWED, "1");
params.put(VideoCodecInfo.H264_FMTP_PACKETIZATION_MODE, "1");
params.put(VideoCodecInfo.H264_FMTP_PROFILE_LEVEL_ID,
isHighProfile ? VideoCodecInfo.H264_CONSTRAINED_HIGH_3_1
: VideoCodecInfo.H264_CONSTRAINED_BASELINE_3_1);
return params;
}
public static VideoCodecInfo DEFAULT_H264_BASELINE_PROFILE_CODEC =
new VideoCodecInfo("H264", getDefaultH264Params(/* isHighProfile= */ false));
public static VideoCodecInfo DEFAULT_H264_HIGH_PROFILE_CODEC =
new VideoCodecInfo("H264", getDefaultH264Params(/* isHighProfile= */ true));
public static boolean isSameH264Profile(
Map<String, String> params1, Map<String, String> params2) {
return nativeIsSameH264Profile(params1, params2);
}
private static native boolean nativeIsSameH264Profile(
Map<String, String> params1, Map<String, String> params2);
}