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Remove MediaTek decoders from the decoders that need bitstream restrictions. The correct fix was to lower level_idc to reduce the required buffering. On newer MediaTek chipsets, sending bitstream restrictions actually slows down decoding by a factor of 3.

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This commit is contained in:
Cameron Gutman 2015-10-11 16:57:37 -07:00
parent 4619045375
commit a6003f6bff
2 changed files with 6 additions and 4 deletions
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1
app/src/main/java/com/limelight/binding/video/MediaCodecHelper.java
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@ -58,7 +58,6 @@ public class MediaCodecHelper {
spsFixupBitstreamFixupDecoderPrefixes = new LinkedList<String>(); spsFixupBitstreamFixupDecoderPrefixes = new LinkedList<String>();
spsFixupBitstreamFixupDecoderPrefixes.add("omx.nvidia"); spsFixupBitstreamFixupDecoderPrefixes.add("omx.nvidia");
spsFixupBitstreamFixupDecoderPrefixes.add("omx.qcom"); spsFixupBitstreamFixupDecoderPrefixes.add("omx.qcom");
spsFixupBitstreamFixupDecoderPrefixes.add("omx.mtk");
spsFixupBitstreamFixupDecoderPrefixes.add("omx.brcm"); spsFixupBitstreamFixupDecoderPrefixes.add("omx.brcm");
baselineProfileHackPrefixes = new LinkedList<String>(); baselineProfileHackPrefixes = new LinkedList<String>();

7
decoder-errata.txt
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@ -12,8 +12,8 @@ This file serves to document some of the decoder errata when using MediaCodec ha
4. Some decoders require num_ref_frames=1 and max_dec_frame_buffering=1 to avoid crashing on SPS on first I-frame 4. Some decoders require num_ref_frames=1 and max_dec_frame_buffering=1 to avoid crashing on SPS on first I-frame
- Affected decoders: Qualcomm in GS3 on 4.3+, Exynos 4 at 1080p only - Affected decoders: Qualcomm in GS3 on 4.3+, Exynos 4 at 1080p only
5. Some decoders will hang if max_dec_frame_buffering is not present 5. Some decoders will hang or crash if max_dec_frame_buffering is not present and level_idc is >= 50
- Affected decoders: MediaTek decoder in Fire HD 7 (2014) - Affected decoders: MediaTek decoder in Fire HD 6/7 (2014)
6. Some decoders will hang if max_dec_frame_buffering IS present 6. Some decoders will hang if max_dec_frame_buffering IS present
- Affected decoders: Exynos 5 in Galaxy Note 10.1 (2014) - Affected decoders: Exynos 5 in Galaxy Note 10.1 (2014)
@ -26,3 +26,6 @@ This file serves to document some of the decoder errata when using MediaCodec ha
9. Some decoders will not enter low latency mode if the profile isn't constrained high profile because B-frames may be present. 9. Some decoders will not enter low latency mode if the profile isn't constrained high profile because B-frames may be present.
- Affected decoders: Intel decoder in Nexus Player (after Android 6.0) - Affected decoders: Intel decoder in Nexus Player (after Android 6.0)
10. Some decoders actually suffer increased latency when max_dec_frame_buffering=1
- Affected decoders: MediaTek decoder in Fire TV 2015