> Am 14.08.2018 um 11:42 schrieb 홍석진 <[email protected]>: > > Hi. > > I have something to discuss with you about vf_fps.c in FFmpeg 4. > > When I tried to encode a video which has only one video frame, a encoded > video (result) had no video stream. > I used video fps filter to adjust fps from 25 to 12 (ffmpeg argument > fps=fps=12.0000000000). > > I know that vf_fps.c was newly rewritten in FFmpeg 4. > I tried to analyze vf_fps.c source code and finally realized that fps filter > remove frame few conditions as below > /* There are two conditions where we want to drop a frame: > * - If we have two buffered frames and the second frame is acceptable > * as the next output frame, then drop the first buffered frame. > * - If we have status (EOF) set, drop frames when we hit the > * status timestamp. */ > In that case, video frame of my video contents can't be passed to > ff_filter_frame function because this video contents has only one frame. > > So, I wonder if I should think of this video as unusual. Because when I use > FFmpeg 3, encoded result video has video stream.
Please provide the input file. Thank you, Carl Eugen _______________________________________________ ffmpeg-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
