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intel / libyami

Yet Another Media Infrastructure. it is core part of media codec with hardware acceleration, it is yummy to your video experience on Linux like platform.
Apache License 2.0
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[R2R] one case md5 does not match with the reference which run manually on KBL #792

Open wangzj0601 opened 6 years ago

wangzj0601 commented 6 years ago

Test enc Platform: KBL Kernel version: 4.12.0-rc2 Libva: 1.8.3pre1 master branch commit f1a3296d160dbedd695f2712c97fb0dc508785f2 intel_driver:  1.8.3pre1 master branch commit 127183b7f528ead9d0f2054277e6da162c6522f2 libyami: apache branch f61cffd77eec64bbcdbb805789a0f70b10f7482f libyami-utils: master branch d6c38d3925eae30e225b7048464a61c10a95503b

Reproduce steps

  1. yamitranscode -i /media/transcode/bit/1080p_blue_sky.yuv.h264 -o 1920x1080.h264
  2. md5sum 1920x1080.h264 as reference
  3. for i in seq 1 10; do yamitranscode -i /media/transcode/bit/1080p_blue_sky.yuv.h264 -o 1920x1080.h264; md5sum 1920x1080.h264 >>zj.txt; rm -rf 1920x1080.h264; done
  4. compare md5 got by automaitc with reference

Expected Result

all md5 are same Actual Result

md5 does not match with the reference run manually

wangzj0601 commented 6 years ago

This issue also can be duplicated on SKL platform when do vp8 encode enc Kernel version: 4.12.0-rc2 Libva: 2.0.1.pre1 master branch commit cb1f254ec65954ff7585f40df4b38337c462b14c intel_driver:  2.0.1.pre1 master branch commit 37613a52e5e0ded88ded0cdf658af5bbe4ea48e0 libva-utils: 2.0.1.pre1 master branch commit 624b382df777cfa8f5dbb2c1eff07411e6ab0468 libyami: apache branch a1f863cd8f6e52787952e15d5bd60ab84784c0e0 tag:1.3.0.pre1 libyami-utils: master branch 8cfdf784719be0499b9839a6a94d277856c4ac94 tag:1.3.0.pre1

step 1.yamiencode -i /media/encoderbitstreams/4K_2013_3840_2160_300frames.yuv -s I420 -W 3840 -H 2160 --qp 80 -c VP8 --rcmode CQP --ipperiod 2 -o ./4K_2013_3840_2160_300frames.yuv_80_2.vp8

  1. yamidecode -i 4K_2013_3840_2160_300frames.yuv_80_2.vp8 -m 0 -f I420
  2. md5sum 4K_2013_3840_2160_300frames.yuv_80_2.vp8_3840x2160.I420
  3. rm -rf 4K_2013_3840_2160_300frames.yuv_80_2.vp8_3840x2160.I420
  4. yamidecode -i 4K_2013_3840_2160_300frames.yuv_80_2.vp8 -m 0 -f I420
  5. md5sum 4K_2013_3840_2160_300frames.yuv_80_2.vp8_3840x2160.I420
  6. compare the two md5 value