[FFmpeg-user] Not using all resources

[Henk D. Schoneveld]

> On 07 Sep 2015, at 14:57, Henk D. Schoneveld <belcampo at zonnet.nl> wrote:
> 
> 
>> On 07 Sep 2015, at 14:46, Carl Eugen Hoyos <cehoyos at ag.or.at> wrote:
>> 
>> Henk D. Schoneveld <belcampo <at> zonnet.nl> writes:
>> 
>>> This one is the one that loads the CPU to almost max
>>> arte.sh 305 4092.96
> Very sorry bout that:
> ffmpeg -y -ss $1 -i base.ts -t $2 -c:v libx264 -crf 22 -preset veryfast -crf 22 -g 50 -me_method umh -s 880x720 -c:a libfdk_aac -ab 128k -ac 2 -r 25 -map 0:0 -map 0:4 base.mp4
Did some more testing. 1 source. Once encoded with ffmpeg from todays  git and handbrakecli as well. Got ‘compatible’ command lines at least to what media info is telling me about the x264 parameters.
Perhaps I’m missing something but I don’t see any differences although x264 and fdk_aac and command lines are equal it results a slightly different filesize. Strange, very strange. Both don’t use all CPU resources although handbrake does slightly better. 

During encoding with ffmeg as well as Handbrake this comes by:
[h264 @ 0x4f03300] Found reference and non-reference fields in the same frame, which is not implemented. Update your FFmpeg version to the newest one from Git. If the problem still occurs, it means that your file has a feature which has not been implemented.
[h264 @ 0x4f03300] If you want to help, upload a sample of this file to ftp://upload.ffmpeg.org/incoming/ and contact the ffmpeg-devel mailing list. (ffmpeg-devel at ffmpeg.org)

ffmpeg
frame=86965 fps= 99
real    14m40.663s
filesize        400962860
Mediainfo says
Writing library                          : x264 core 148 r2597 e86f3a1
Encoding settings                        : cabac=1 / ref=1 / deblock=1:0:0 / analyse=0x3:0x113 / me=umh / subme=2 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=0 / me_range=16 / chroma_me=1 / trellis=0 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=0 / threads=12 / lookahead_threads=4 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=3 / b_pyramid=2 / b_adapt=1 / b_bias=0 / direct=1 / weightb=1 / open_gop=0 / weightp=1 / keyint=50 / keyint_min=5 / scenecut=40 / intra_refresh=0 / rc_lookahead=10 / rc=crf / mbtree=1 / crf=22.0 / qcomp=0.60 / qpmin=0 / qpmax=69 / qpstep=4 / ip_ratio=1.40 / aq=1:1.00

HandBrake
average encoding speed for job is 117.013283 fps
real    12m29.521s
filesize        406960213
Mediainfo says
Writing library                          : x264 core 148 r2597 e86f3a1
Encoding settings                        : cabac=1 / ref=1 / deblock=1:0:0 / analyse=0x3:0x113 / me=umh / subme=2 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=0 / me_range=16 / chroma_me=1 / trellis=0 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=0 / threads=12 / lookahead_threads=4 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=3 / b_pyramid=2 / b_adapt=1 / b_bias=0 / direct=1 / weightb=1 / open_gop=0 / weightp=1 / keyint=50 / keyint_min=5 / scenecut=40 / intra_refresh=0 / rc_lookahead=10 / rc=crf / mbtree=1 / crf=22.0 / qcomp=0.60 / qpmin=0 / qpmax=69 / qpstep=4 / ip_ratio=1.40 / aq=1:1.00
Encoded date                             : UTC 2015-09-07 22:16:15
>> 
>> You may not have realized it but I don't have 
>> this script on my system and I therefore don't 
>> know what command line you are using.
>> 
>> Carl Eugen
>> 
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