Unable to parse option value "bpyramid"

ffmpeg -version ffmpeg version 4.1 Copyright (c) 2000-2018 the FFmpeg developers built with gcc 4.4.7 (GCC) 20120313 (Red Hat 4.4.7-23) configuration: --prefix=/opt/ffmpeg-4.1/ --extra-cflags=-I/opt/ffmpeg-4.1/include --extra-ldflags='-L/opt/ffmpeg-4.1/lib -ldl' --pkg-config-flags=--static --enable-gpl --enable-libx265 --extra-libs=-lpthread --enable-libfdk_aac --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libvorbis --enable-libvpx --enable-libx264 --enable-nonfree libavutil 56. 22.100 / 56. 22.100 libavcodec 58. 35.100 / 58. 35.100 libavformat 58. 20.100 / 58. 20.100 libavdevice 58. 5.100 / 58. 5.100 libavfilter 7. 40.101 / 7. 40.101 libswscale 5. 3.100 / 5. 3.100 libswresample 3. 3.100 / 3. 3.100 libpostproc 55. 3.100 / 55. 3.100 ffmpeg -y -i /test-in.mp4 -codec:a aac -ac 2 -b:a 128k -threads 0 -codec:v libx264 -b:v 3000k -minrate 2400k -maxrate 4500k -bufsize 6000k -flags +loop+mv4 -cmp 256 -partitions +parti4x4+parti8x8+partp4x4+partp8x8+partb8x8 -me_method hex -subq 9 -trellis 1 -refs 3 -bf 3 -deinterlace -coder 1 -me_range 24 -g 25 -keyint_min 25 -r 25 -sc_threshold 0 -i_qfactor 0.71 -qmin 0 -qmax 40 -qdiff 4 -s 1280x720 -aspect 16:9 -psy 1 -fast-pskip 1 -flags2 +bpyramid+wpred+mixed_refs+dct8x8 -pix_fmt yuv420p -y /test-out.mp4

[aac @ 0x466dec0] [Eval @ 0x7fffbc209f40] Undefined constant or missing '(' in 'bpyramid' [aac @ 0x466dec0] Unable to parse option value "bpyramid" [aac @ 0x466dec0] Error setting option flags2 to value +bpyramid. Error initializing output stream 0:1 -- Error while opening encoder for output stream #0:1 - maybe incorrect parameters such as bit_rate, rate, width or height Conversion failed!

Answers

In 2018, those generic libavcodec options should not be used to configure libx264.

-flags2 +bpyramid+wpred+mixed_refs+dct8x8`

should be replaced with

-x264opts "b-pyramid=normal:weightb:mixed_refs:8x8dct"

Note that all of the above are set by default so you can skip them altogether.

Consider using presets. Manual tweaking of individual parameters hasn't been recommended for a long time now.

Gyan

Posted 2018-11-14T09:23:39.797

Reputation: 21 016

@maclin You can simplify your command even more as the presets will deal with most of it, some of your options don't apply to x264 anyway, some don't make sense, and some are default. No need to encode like it's 2006. ffmpeg -y -i input.mp4 -c:a aac -ac 2 -b:a 128k -c:v libx264 -preset medium -b:v 3000k -minrate 2400k -maxrate 4500k -bufsize 6000k -deinterlace -g 25 -r 25 -s 1280x720 -aspect 16:9 -pix_fmt yuv420p output.mp4 It could be more simplified further, but I left some of your extra options in there that aren't default or preset covered.

– llogan – 2018-11-14T19:56:15.150

@LordNeckbeard i cant find description of what keys are apllied to each preset, if it even exists? – maclin – 2018-11-15T08:28:49.133

@maclin See --preset in x264 --fullhelp. – llogan – 2018-11-15T19:35:05.500