Hi there, I'm scaling a video by with this filter:
-vf "scale=720:320:force_original_aspect_ratio=decrease" which works perfectly fine, since I can input the my desired resolution and ffmpeg decides on its own which dimension should be scaled by how much to keep the aspect ratio. The problem now is that in some cases ffmpeg will calculate a uneven number for one of the dimensions (with the h264 codec) thus I get this error: [libx264 @ 0x5633df10bcc0] width not divisible by 2 (569x320) Error initializing output stream 0:0 -- Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height Is there some way to prevent this to give ffmpeg a width and a height as an input and it says on its own which should be scaled by how much AND keep (at least the calculated) dimensions divisable by n (I know something similar is possible with negative numbers, but then I can only give one dimension)? I tried something like this as well, but I don't know if ffmpeg even can calculate modulo and if this isn't a problem with self referencing: -vf "scale=720:320:force_original_aspect_ratio=decrease:w=ow+(ow%2):h=oh+(oh%2)" -- Sent from: http://www.ffmpeg-archive.org/ _______________________________________________ ffmpeg-user mailing list [email protected] https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
