On Mon, Apr 29, 2019 at 13:03:51 +0200, Mohammed Bey Ahmed Khernache wrote: > Hello, > how to encode a video sequence in hevc, with "*tiles*" or "*wpp*" schemes > using ffmpeg?
If I understand the (lib)x265 documentation correctly, x265 has no support for tiles, only slices. It has support for WPP, which is activated by default, and preferred over slices. > .\ffmpeg.exe -f rawvideo -vcodec rawvideo -s 1920x1080 -r 25 -pix_fmt > yuv420p -i .\pedestrian_area.yuv -c:v hevc -r 25 -x265-params -tiles 4x2 > crf=27 -vframes 375 -an -y pedestrian_area.mp4 This is not the way x265-params works. It requires one shell argument, which would make it look like: -x265-params "optionname1=value1:optionname2=value2:..." And it seems x265 doesn't support a "tiles" option anyway. > [NULL @ 00000178db486a40] Unable to find a suitable output format for '4x2' > 4x2: Invalid argument This is because "-tiles" was interpreted as the argument to the option "-x265-params", and hence "4x2" was interpreted as an output name. In summary: You probably need to do exactly nothing (but omit "-x265-params -tiles 4x2") to achieve WPP. And you pass "crf" with the ffmpeg option, i.e. "-crf 27": $ .\ffmpeg.exe -f rawvideo -vcodec rawvideo -s 1920x1080 -r 25 -pix_fmt yuv420p -i .\pedestrian_area.yuv -c:v hevc -crf 27 -vframes 375 -an -y pedestrian_area.mp4 (Just to point it out - untested.) Cheers, Moritz _______________________________________________ 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".
