[FFmpeg-trac] #7301(undetermined:reopened): h264_nvenc / b_ref_mode each is not working

FFmpeg trac at avcodec.org
Wed Jul 22 14:14:39 EEST 2020


#7301: h264_nvenc / b_ref_mode each is not working
-------------------------------------+-------------------------------------
             Reporter:               |                    Owner:
  smallishzulu                       |
                 Type:  defect       |                   Status:  reopened
             Priority:  normal       |                Component:
                                     |  undetermined
              Version:  unspecified  |               Resolution:
             Keywords:  nvenc        |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
Changes (by Balling):

 * status:  closed => reopened
 * resolution:  invalid =>


Comment:

 Replying to [comment:4 smallishzulu]:
 > As indicated, this mode is not supported at all, so the current
 behaviour is correct. When this mode becomes available in the future, the
 value returned on calling NvEncGetEncodeCaps() with the
 NV_ENC_CAPS_SUPPORT_BFRAME_REF_MODE capability will include
 NV_ENC_BFRAME_REF_MODE_EACH.

 This is not absoulutely true because ret of nvenc_check_cap() we do not
 check (ret != 1 || ret != 3)
 https://github.com/FFmpeg/FFmpeg/blob/master/libavcodec/nvenc.c#L426

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Ticket URL: <https://trac.ffmpeg.org/ticket/7301#comment:6>
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