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Constant bitrate video encoding.

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This commit is contained in:
Nicholas Tinsley 2024-07-12 11:01:03 -04:00
parent 4f96cb7439
commit f247fd78c6
1 changed files with 15 additions and 10 deletions
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25
video/lib/src/main/java/org/thoughtcrime/securesms/video/videoconverter/VideoTrackConverter.java
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@ -1,3 +1,8 @@
/*
* Copyright 2024 Signal Messenger, LLC
* SPDX-License-Identifier: AGPL-3.0-only
*/
package org.thoughtcrime.securesms.video.videoconverter;
import android.media.MediaCodec;
@ -21,7 +26,6 @@ import org.thoughtcrime.securesms.video.videoconverter.utils.Preconditions;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.nio.ByteBuffer;
import java.util.Locale;
import java.util.concurrent.atomic.AtomicReference;
import kotlin.Pair;
@ -157,6 +161,7 @@ final class VideoTrackConverter {
// configure() call to throw an unhelpful exception.
outputVideoFormat.setInteger(MediaFormat.KEY_COLOR_FORMAT, MediaCodecInfo.CodecCapabilities.COLOR_FormatSurface);
outputVideoFormat.setInteger(MediaFormat.KEY_BIT_RATE, videoBitrate);
outputVideoFormat.setInteger(MediaFormat.KEY_BITRATE_MODE, MediaCodecInfo.EncoderCapabilities.BITRATE_MODE_CBR);
outputVideoFormat.setInteger(MediaFormat.KEY_FRAME_RATE, OUTPUT_VIDEO_FRAME_RATE);
outputVideoFormat.setInteger(MediaFormat.KEY_I_FRAME_INTERVAL, OUTPUT_VIDEO_IFRAME_INTERVAL);
if (Build.VERSION.SDK_INT >= 31 && isHdr(inputVideoFormat)) {
@ -476,15 +481,15 @@ final class VideoTrackConverter {
}
}
shader =
"#extension GL_OES_EGL_image_external : require\n" +
"precision mediump float;\n" + // highp here doesn't seem to matter
"varying vec2 vTextureCoord;\n" +
"uniform samplerExternalOES sTexture;\n" +
"void main() {\n" +
" gl_FragColor = (texture2D(sTexture, vTextureCoord)\n" +
colorLoop.toString() +
" ) / " + sum + ";\n" +
"}\n";
"#extension GL_OES_EGL_image_external : require\n" +
"precision mediump float;\n" + // highp here doesn't seem to matter
"varying vec2 vTextureCoord;\n" +
"uniform samplerExternalOES sTexture;\n" +
"void main() {\n" +
" gl_FragColor = (texture2D(sTexture, vTextureCoord)\n" +
colorLoop +
" ) / " + sum + ";\n" +
"}\n";
}
Log.i(TAG, shader);
return shader;