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Set the vendor.qti-ext-dec-low-latency.enable Qualcomm vendor extension

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Cameron Gutman
2020-02-22 17:06:32 -08:00
parent 3011a5bad7
commit 81b6a8a311
2 changed files with 27 additions and 0 deletions
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app/src/main/java/com/limelight/binding/video/MediaCodecDecoderRenderer.java
+12
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@@ -319,6 +319,18 @@ public class MediaCodecDecoderRenderer extends VideoDecoderRenderer {
videoFormat.setInteger(MediaCodecHelper.KEY_LOW_LATENCY, 1);
}
else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
// Set the Qualcomm vendor low latency extension if the Android R option is unavailable
if (MediaCodecHelper.decoderSupportsQcomVendorLowLatency(selectedDecoderName)) {
// MediaCodec supports vendor-defined format keys using the "vendor.<extension name>.<parameter name>" syntax.
// These allow access to functionality that is not exposed through documented MediaFormat.KEY_* values.
// https://cs.android.com/android/platform/superproject/+/master:hardware/qcom/sdm845/media/mm-video-v4l2/vidc/common/inc/vidc_vendor_extensions.h;l=67
//
// Examples of Qualcomm's vendor extensions for Snapdragon 845:
// https://cs.android.com/android/platform/superproject/+/master:hardware/qcom/sdm845/media/mm-video-v4l2/vidc/vdec/src/omx_vdec_extensions.hpp
// https://cs.android.com/android/_/android/platform/hardware/qcom/sm8150/media/+/0621ceb1c1b19564999db8293574a0e12952ff6c
videoFormat.setInteger("vendor.qti-ext-dec-low-latency.enable", 1);
}
// Operate at maximum rate to lower latency as much as possible on
// some Qualcomm platforms. We could also set KEY_PRIORITY to 0 (realtime)
// but that will actually result in the decoder crashing if it can't satisfy