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Fix VP9 on Android L and M by advertising profile level

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This commit is contained in:
Zen Xu 2021-01-14 23:56:52 -08:00
parent dde0b9b614
commit 83a8e1e01d
1 changed files with 45 additions and 1 deletions
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46
library/core/src/main/java/com/google/android/exoplayer2/mediacodec/MediaCodecInfo.java
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@ -47,6 +47,7 @@ import com.google.android.exoplayer2.util.Assertions;
import com.google.android.exoplayer2.util.Log;
import com.google.android.exoplayer2.util.MimeTypes;
import com.google.android.exoplayer2.util.Util;
import java.util.ArrayList;
/** Information about a {@link MediaCodec} for a given mime type. */
@SuppressWarnings("InlinedApi")
@ -298,7 +299,15 @@ public final class MediaCodecInfo {
// which may not be widely supported. See https://github.com/google/ExoPlayer/issues/5145.
return true;
}
for (CodecProfileLevel capabilities : getProfileLevels()) {
final CodecProfileLevel[] codecProfileLevels;
if (MimeTypes.VIDEO_VP9.equals(mimeType) && Util.SDK_INT <= 23 && capabilities != null) {
codecProfileLevels = getVp9CodecProfileLevelsV23(capabilities);
} else {
codecProfileLevels = getProfileLevels();
}
for (CodecProfileLevel capabilities : codecProfileLevels) {
if (capabilities.profile == profile && capabilities.level >= level) {
return true;
}
@ -572,6 +581,41 @@ public final class MediaCodecInfo {
return true;
}
/**
* On versions L and M, VP9 codecCapabilities do not advertise profile level
* support. In this case, estimate the level from MediaCodecInfo.VideoCapabilities
* instead. Assume VP9 is not supported before L. For more information, consult
* https://developer.android.com/reference/android/media/MediaCodecInfo.CodecProfileLevel.html
*/
private static CodecProfileLevel[] getVp9CodecProfileLevelsV23(CodecCapabilities capabilities) {
// https://www.webmproject.org/vp9/levels
final int[][] bitrateMapping = {
{200, 10}, {800, 11}, {1800, 20}, {3600, 21}, {7200, 30}, {12000, 31}, {18000, 40},
{30000, 41}, {60000, 50}, {120000, 51}, {180000, 52},
};
VideoCapabilities videoCapabilities = capabilities.getVideoCapabilities();
if (videoCapabilities == null) {
return new CodecProfileLevel[0];
}
ArrayList<CodecProfileLevel> profileLevelList = new ArrayList<>();
for (int[] entry : bitrateMapping) {
int bitrate = entry[0];
int level = entry[1];
if (videoCapabilities.getBitrateRange().contains(bitrate)) {
CodecProfileLevel profileLevel = new CodecProfileLevel();
// Assume all platforms before N only support VP9 profile 0.
profileLevel.profile = CodecProfileLevel.VP9Profile0;
profileLevel.level = level;
profileLevelList.add(profileLevel);
}
}
return profileLevelList.toArray(new CodecProfileLevel[profileLevelList.size()]);
}
private void logNoSupport(String message) {
Log.d(TAG, "NoSupport [" + message + "] [" + name + ", " + mimeType + "] ["
+ Util.DEVICE_DEBUG_INFO + "]");