[FFmpeg-user] cropdetect (Was: ffmpeg convert to wrong duration using dvd2concat)

Paul B Mahol onemda at gmail.com
Wed Jan 20 22:11:31 CET 2016

On 1/20/16, Moritz Barsnick <barsnick at gmx.net> wrote:
> Regarding cropdetect:
> On Wed, Jan 20, 2016 at 11:31:50 -0500, Etienne Desautels wrote:
>> [Parsed_cropdetect_1 @ 0x40b8900] x1:719 x2:0 y1:479 y2:0 w:-718 h:-478
>> x:720 y:480 pts:6006 t:0.066733 crop=-718:-478:720:480
> I have noticed dimensions like this before. Are they actually useful?
> What do they produce if fed to the crop filter (e.g. via metadata)?


> I realize they represent "empty" frames, where "everything" is cropped.
> Does something need fixing here? (I started an attempt a few months
> ago, but got distracted by life.)
> Moritz
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