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Enable HEVC on all Shield TV devices

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This commit is contained in:
Cameron Gutman 2022-06-06 17:29:47 -05:00
parent d4490f0e17
commit 297ac64fde
1 changed files with 12 additions and 20 deletions
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32
app/src/main/java/com/limelight/binding/video/MediaCodecHelper.java
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@ -136,14 +136,20 @@ public class MediaCodecHelper {
// Exynos seems to be the only HEVC decoder that works reliably
whitelistedHevcDecoders.add("omx.exynos");
// On Darcy (Shield 2017), HEVC runs fine with no fixups required.
// For some reason, other X1 implementations require bitstream fixups.
if (Build.DEVICE.equalsIgnoreCase("darcy")) {
// On Darcy (Shield 2017), HEVC runs fine with no fixups required. For some reason,
// other X1 implementations require bitstream fixups. However, since numReferenceFrames
// has been supported in GFE since late 2017, we'll go ahead and enable HEVC for all
// device models.
//
// NVIDIA does partial HEVC acceleration on the Shield Tablet. I don't know
// whether the performance is good enough to use for streaming, but they're
// using the same omx.nvidia.h265.decode name as the Shield TV which has a
// fully accelerated HEVC pipeline. AFAIK, the only K1 device with this
// partially accelerated HEVC decoder is the Shield Tablet, so I'll
// check for it here.
if (!Build.DEVICE.equalsIgnoreCase("shieldtablet")) {
whitelistedHevcDecoders.add("omx.nvidia");
}
else {
// TODO: This needs a similar fixup to the Tegra 3 otherwise it buffers 16 frames
}
// Plot twist: On newer Sony devices (BRAVIA_ATV2, BRAVIA_ATV3_4K, BRAVIA_UR1_4K) the H.264 decoder crashes
// on several configurations (> 60 FPS and 1440p) that work with HEVC, so we'll whitelist those devices for HEVC.
@ -568,20 +574,6 @@ public class MediaCodecHelper {
}
public static boolean decoderIsWhitelistedForHevc(String decoderName, boolean meteredData, PreferenceConfiguration prefs) {
// TODO: Shield Tablet K1/LTE?
//
// NVIDIA does partial HEVC acceleration on the Shield Tablet. I don't know
// whether the performance is good enough to use for streaming, but they're
// using the same omx.nvidia.h265.decode name as the Shield TV which has a
// fully accelerated HEVC pipeline. AFAIK, the only K1 device with this
// partially accelerated HEVC decoder is the Shield Tablet, so I'll
// check for it here.
//
// TODO: Temporarily disabled with NVIDIA HEVC support
/*if (Build.DEVICE.equalsIgnoreCase("shieldtablet")) {
return false;
}*/
// Google didn't have official support for HEVC (or more importantly, a CTS test) until
// Lollipop. I've seen some MediaTek devices on 4.4 crash when attempting to use HEVC,
// so I'm restricting HEVC usage to Lollipop and higher.