On Tue, Jul 5, 2016, at 02:10 AM, Carl Eugen Hoyos wrote: > > Did you test different swscale options?
To elaborate, you can try various scaling algorithms using the "flags" option in the scale filter. https://ffmpeg.org/ffmpeg-scaler.html#sws_005fflags https://ffmpeg.org/ffmpeg-filters.html#scale Alternatively, you can try the zscale filter. I haven't yet compared its speed to scale however. You will need z.lib and re-compile ffmpeg with --enable-libzimg to support this filter. https://ffmpeg.org/ffmpeg-filters.html#zscale How do you know scaling is the culprit? Why are you re-encoding in the first place? I wouldn't use mpeg4. libx264 will provide a better quality per bit. Ensure that your linked x264 isn't ancient. Finally, you're encoding with an ARM processor on a phone. I'm not an ARM expert, but I wouldn't expect much. _______________________________________________ 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".
