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Disable HEVC RFI on Fire TV 3 due to decoder hangs

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This commit is contained in:
Cameron Gutman
2022-11-06 18:13:19 -06:00
parent 6a8486a076
commit 4a6a39dd4c
1 changed files with 18 additions and 1 deletions
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17
app/src/main/java/com/limelight/binding/video/MediaCodecHelper.java
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@@ -318,6 +318,11 @@ public class MediaCodecHelper {
// We still have to check Build.MANUFACTURER to catch Amazon Fire tablets.
if (context.getPackageManager().hasSystemFeature("amazon.hardware.fire_tv") ||
Build.MANUFACTURER.equalsIgnoreCase("Amazon")) {
// HEVC and RFI have been confirmed working on Fire TV 2, Fire TV Stick 2, Fire TV 4K Max,
// Fire HD 8 2020, and Fire HD 8 2022 models.
//
// This is probably a good enough sample to conclude that all MediaTek Fire OS devices
// are likely to be okay.
whitelistedHevcDecoders.add("omx.mtk");
refFrameInvalidationHevcPrefixes.add("omx.mtk");
@@ -325,8 +330,20 @@ public class MediaCodecHelper {
// never produces any output frames. See comment above for details on why we only
// do this for Fire TV devices.
whitelistedHevcDecoders.add("omx.amlogic");
// Fire TV 3 seems to produce random artifacts on HEVC streams after packet loss.
// Enabling RFI turns these artifacts into full decoder output hangs, so let's not enable
// that for Fire OS 6 Amlogic devices. We will leave HEVC enabled because that's the only
// way these devices can hit 4K. Hopefully this is just a problem with the BSP used in
// the Fire OS 6 Amlogic devices, so we will leave this enabled for Fire OS 7+.
//
// Apart from a few TV models, the main Amlogic-based Fire TV devices are the Fire TV
// Cubes and Fire TV 3. This check will exclude the Fire TV 3 and Fire TV Cube 1, but
// allow the newer Fire TV Cubes to use HEVC RFI.
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
refFrameInvalidationHevcPrefixes.add("omx.amlogic");
}
}
ActivityManager activityManager =
(ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE);