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Correct MT8176 errata

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Cameron Gutman 2018-06-16 16:37:50 -07:00
parent e97845e46e
commit 61b6a49669
1 changed files with 2 additions and 2 deletions
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decoder-errata.txt
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This file serves to document some of the decoder errata when using MediaCodec hardware decoders on certain devices. This file serves to document some of the decoder errata when using MediaCodec hardware decoders on certain devices.
1. num_ref_frames is set to 16 by NVENC which causes decoders to allocate 16+ buffers. This can cause an error or lag on some devices. 1. num_ref_frames is set to 16 by NVENC which causes decoders to allocate 16+ buffers. This can cause an error or lag on some devices.
- Affected decoders: TI OMAP4, Allwinner A20 - Affected decoders: TI OMAP4 crashes, Allwinner A20, MT8176 lags (HEVC not affected)
2. Some H.264 decoders have a huge per-frame latency with the unmodified SPS sent from NVENC. Setting max_dec_frame_buffering=1 fixes this latency issue. 2. Some H.264 decoders have a huge per-frame latency with the unmodified SPS sent from NVENC. Setting max_dec_frame_buffering=1 fixes this latency issue.
- Affected decoders: NVIDIA Tegra 3 and 4, Broadcom VideoCore IV, MT8176 (HEVC not affected) - Affected decoders: NVIDIA Tegra 3 and 4, Broadcom VideoCore IV
3. Some decoders strictly require that you pass BUFFER_FLAG_CODEC_CONFIG and crash upon the IDR frame if you don't 3. Some decoders strictly require that you pass BUFFER_FLAG_CODEC_CONFIG and crash upon the IDR frame if you don't
- Affected decoders: TI OMAP4 - Affected decoders: TI OMAP4