#8916: Incorrect field order indication when encoding interlace top field first
using h264_nvenc
-------------------------------------+-------------------------------------
Reporter: Ptaah | Type: defect
Status: new | Priority: important
Component: avcodec | Version: git-
Keywords: avcodec | master
nvenc field tff bff | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
-------------------------------------+-------------------------------------
Summary of the bug:
When encoding top field first interlaced video (or making one using
tinterlace filter), the resulting h264 bitstream is marked as bottom field
first. This behaviour was not present prior version 4.0.
How to reproduce:
{{{
% ffmpeg -i interlaced.mp4 -codec:v h264_nvenc -flags +ildct+ilme -an
output.mp4
% ffprobe -i output.mp4 -show_entries
"frame=interlaced_frame,top_field_first" -pretty
[FRAME]
interlaced_frame=1
top_field_first=0
[/FRAME]
}}}
--
Ticket URL: <https://trac.ffmpeg.org/ticket/8916>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker
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