Changes between Initial Version and Version 1 of Ticket #628, comment 9


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Timestamp:
Mar 31, 2022, 9:26:22 PM (4 years ago)
Author:
Balling

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  • Ticket #628, comment 9

    initial v1  
    1 I actually found the only place where it makes a difference: apparently this file md5 of both [NV12] output of -hwaccel nvdec and -c:v h264_cuvid are bitperfect and both do not care about the patch above increasing stuff to 256. While both -hwaccel d3d11va and -hwaccel dxva2 care about this, they need 64 MAX_SLICES to be bitperfect NV12 with nvdec and cuvid. That can be checked on this file and this: https://github.com/wang-bin/QtAV/issues/923
     1I actually found the only place where it makes a difference: apparently this file md5 of both [NV12] output of -hwaccel nvdec and -c:v h264_cuvid are bitperfect and both do not care about the patch above increasing stuff to 256. While both -hwaccel d3d11va and -hwaccel dxva2 care about this, they need 64 MAX_SLICES to be bitperfect NV12 with nvdec and cuvid. That can be also checked on this file: https://github.com/wang-bin/QtAV/issues/923
    22
    33Very cool. But I doubt that this is somehow issue in h264, I think this is just dxva bug.