[FFmpeg-devel] Bug in FFMPEG video filter TINTERLACE needs fixing

[Paul B Mahol]

On 7/8/20, Ben Hutchinson <benhut1 at gmail.com> wrote:
> According to the documentation on the TINTERLACE video filter, the filter
> mode called MERGEX2 will "Move odd frames into the upper field, even into
> the lower field, generating a double height frame at same frame rate." But
> it doesn't do this, at least in some cases (not sure about all cases). The
> first frame in a sequence should be considered frame one (an odd frame) for

Where is this written?

> the purpose of this interlacing algorithm. However, that is not what's
> happening in my experience. At least with raw video (using "-f rawvideo")
> it's treating the first frame as frame zero (an even frame) and thus my
> first frame (which contains top-field data) ends up getting put into the
> bottom-field of the output video, and this is messing up the output. Please
> fix this.
> _______________________________________________
> ffmpeg-devel mailing list
> ffmpeg-devel at ffmpeg.org
> https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
>
> To unsubscribe, visit link above, or email
> ffmpeg-devel-request at ffmpeg.org with subject "unsubscribe".