[FFmpeg-trac] #8062(avfilter:new): artifacts using delogo filter on some videos
FFmpeg
trac at avcodec.org
Tue Aug 6 11:22:35 EEST 2019
#8062: artifacts using delogo filter on some videos
----------------------------------+--------------------------------------
Reporter: mengyelv | Type: defect
Status: new | Priority: normal
Component: avfilter | Version: git-master
Keywords: | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
----------------------------------+--------------------------------------
Summary of the bug:
When using delogo filter on some videos, the areas delogoed will sometimes
show artifacts, like the TV snow noise. I tried v4.1 and the lastest build
on linux and windows, all having this problem. I processed around 10k
videos, a few percent of them had this problem.
I also tried to first re-encode the videos to others format, did not help
fix the problem.
How to reproduce:
{{{
command:
ffmpeg -i D:/782848_cut.mp4 -vf "delogo=x=62:y=41:w=197:h=101"
D:/782848_cut_delogo.mp4 -y
ffmpeg version N-94455-g01994c93db Copyright (c) 2000-2019 the FFmpeg
developers
built with gcc 9.1.1 (GCC) 20190716
configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-
fontconfig --enable-gnutls --enable-iconv --enabl
e-libass --enable-libdav1d --enable-libbluray --enable-libfreetype
--enable-libmp3lame --enable-libopencore-amrnb --enab
le-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-
libshine --enable-libsnappy --enable-libsoxr --enabl
e-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack
--enable-libwebp --enable-libx264 --enable-libx265 -
-enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp
--enable-libvidstab --enable-libvorbis --enabl
e-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid
--enable-libaom --enable-libmfx --enable-amf --en
able-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-
nvdec --enable-dxva2 --enable-avisynth --enable-l
ibopenmpt
libavutil 56. 33.100 / 56. 33.100
libavcodec 58. 55.100 / 58. 55.100
libavformat 58. 30.100 / 58. 30.100
libavdevice 58. 9.100 / 58. 9.100
libavfilter 7. 58.100 / 7. 58.100
libswscale 5. 6.100 / 5. 6.100
libswresample 3. 6.100 / 3. 6.100
libpostproc 55. 6.100 / 55. 6.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'D:/782848_cut.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2mp41
encoder : Lavf58.12.100
Duration: 00:00:20.17, start: 0.000000, bitrate: 2432 kb/s
Stream #0:0(und): Video: mpeg4 (Simple Profile) (mp4v / 0x7634706D),
yuv420p, 1280x720 [SAR 1:1 DAR 16:9], 2106 kb/s
, 25.05 fps, 25 tbr, 10000k tbn, 25 tbc (default)
Metadata:
handler_name : VideoHandler
Stream #0:1(und): Audio: mp3 (mp4a / 0x6134706D), 44100 Hz, stereo,
fltp, 319 kb/s (default)
Metadata:
handler_name : SoundHandler
Stream mapping:
Stream #0:0 -> #0:0 (mpeg4 (native) -> h264 (libx264))
Stream #0:1 -> #0:1 (mp3 (mp3float) -> aac (native))
Press [q] to stop, [?] for help
[libx264 @ 000002d530180140] using SAR=1/1
[libx264 @ 000002d530180140] using cpu capabilities: MMX2 SSE2Fast SSSE3
SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 000002d530180140] profile High, level 3.1, 4:2:0, 8-bit
[libx264 @ 000002d530180140] 264 - core 158 r2984 3759fcb - H.264/MPEG-4
AVC codec - Copyleft 2003-2019 - http://www.vid
eolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0
analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed
_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11
fast_pskip=1 chroma_qp_offset=-2 threads=12 looka
head_threads=2 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=2 keyint=250
keyint_min=25 scenecut=40 intra_refresh=0 rc_lookah
ead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4
ip_ratio=1.40 aq=1:1.00
Output #0, mp4, to 'D:/782848_cut_delogo.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2mp41
encoder : Lavf58.30.100
Stream #0:0(und): Video: h264 (libx264) (avc1 / 0x31637661), yuv420p,
1280x720 [SAR 1:1 DAR 16:9], q=-1--1, 25 fps,
12800 tbn, 25 tbc (default)
Metadata:
handler_name : VideoHandler
encoder : Lavc58.55.100 libx264
Side data:
cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz,
stereo, fltp, 128 kb/s (default)
Metadata:
handler_name : SoundHandler
encoder : Lavc58.55.100 aac
frame= 505 fps= 88 q=-1.0 Lsize= 5675kB time=00:00:20.17
bitrate=2303.9kbits/s speed=3.53x
video:5340kB audio:320kB subtitle:0kB other streams:0kB global headers:0kB
muxing overhead: 0.261392%
[libx264 @ 000002d530180140] frame I:3 Avg QP:19.33 size: 37616
[libx264 @ 000002d530180140] frame P:461 Avg QP:20.26 size: 11030
[libx264 @ 000002d530180140] frame B:41 Avg QP:21.11 size: 6583
[libx264 @ 000002d530180140] consecutive B-frames: 84.8% 12.7% 1.8% 0.8%
[libx264 @ 000002d530180140] mb I I16..4: 39.7% 59.1% 1.2%
[libx264 @ 000002d530180140] mb P I16..4: 11.5% 14.9% 0.3% P16..4:
29.1% 5.3% 2.7% 0.0% 0.0% skip:36.2%
[libx264 @ 000002d530180140] mb B I16..4: 5.9% 6.1% 0.0% B16..8:
34.8% 3.5% 0.5% direct: 9.8% skip:39.3% L0:72
.5% L1:16.8% BI:10.6%
[libx264 @ 000002d530180140] 8x8 transform intra:55.5% inter:85.2%
[libx264 @ 000002d530180140] coded y,uvDC,uvAC intra: 15.7% 40.7% 5.6%
inter: 12.6% 14.9% 1.1%
[libx264 @ 000002d530180140] i16 v,h,dc,p: 62% 25% 12% 1%
[libx264 @ 000002d530180140] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 26% 17% 50%
3% 1% 1% 1% 1% 2%
[libx264 @ 000002d530180140] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 45% 25% 13%
2% 5% 3% 3% 2% 2%
[libx264 @ 000002d530180140] i8c dc,h,v,p: 44% 23% 31% 2%
[libx264 @ 000002d530180140] Weighted P-Frames: Y:1.7% UV:0.7%
[libx264 @ 000002d530180140] ref P L0: 73.2% 11.9% 11.1% 3.7% 0.1%
[libx264 @ 000002d530180140] ref B L0: 84.8% 14.9% 0.4%
[libx264 @ 000002d530180140] ref B L1: 99.2% 0.8%
[libx264 @ 000002d530180140] kb/s:2165.42
[aac @ 000002d5301e7bc0] Qavg: 489.392
}}}
Patches should be submitted to the ffmpeg-devel mailing list and not this
bug tracker.
--
Ticket URL: <https://trac.ffmpeg.org/ticket/8062>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker
More information about the FFmpeg-trac
mailing list