[FFmpeg-trac] #8985(undetermined:new): GIF overlay blinks when added as a layer
FFmpeg
trac at avcodec.org
Fri Nov 13 10:04:33 EET 2020
#8985: GIF overlay blinks when added as a layer
-------------------------------------+-------------------------------------
Reporter: emaincourt | Type: defect
Status: new | Priority: normal
Component: | Version:
undetermined | unspecified
Keywords: gif | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
-------------------------------------+-------------------------------------
Summary of the bug:
When adding a GIF overlay to an MP4 video, with {{{enable}}} option set,
the GIF blinks before disappearing. Actually what happens when I take a
look at the encoded output frame by frame is that the GIF disappears from
the timeline a few milliseconds before 3s, then appears again and
eventually leaves.
So far, I've always been facing this bug when using GIFs from Giphy. Other
GIFs that I had locally seem to be ok.
Please find [https://streamable.com/llfzzn here] a demonstration of that
behaviour.
How to reproduce:
{{{
% ffmpeg \
-i 0689a8a9-43b5-45d2-b0e8-acbea6905ce1.mp4 \
-ignore_loop 0 \
-i 02a6e696-969b-4a90-9444-e4b0b4d6f6da.gif \
-t 10.000000 \
-filter_complex "[0:v][1:v]overlay=enable='between(t, 1, 3)'" \
-pix_fmt yuv420p \
output.mp4
ffmpeg version 4.3.1 Copyright (c) 2000-2020 the FFmpeg developers
built with Apple clang version 12.0.0 (clang-1200.0.32.21)
configuration: --prefix=/usr/local/Cellar/ffmpeg/4.3.1_2 --enable-shared
--enable-pthreads --enable-version3 --enable-avresample --cc=clang --host-
cflags= --host-ldflags= --enable-ffplay --enable-gnutls --enable-gpl
--enable-libaom --enable-libbluray --enable-libdav1d --enable-libmp3lame
--enable-libopus --enable-librav1e --enable-librubberband --enable-
libsnappy --enable-libsrt --enable-libtesseract --enable-libtheora
--enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwebp
--enable-libx264 --enable-libx265 --enable-libxml2 --enable-libxvid
--enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r
--enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb
--enable-libopenjpeg --enable-librtmp --enable-libspeex --enable-libsoxr
--enable-videotoolbox --disable-libjack --disable-indev=jack
libavutil 56. 51.100 / 56. 51.100
libavcodec 58. 91.100 / 58. 91.100
libavformat 58. 45.100 / 58. 45.100
libavdevice 58. 10.100 / 58. 10.100
libavfilter 7. 85.100 / 7. 85.100
libavresample 4. 0. 0 / 4. 0. 0
libswscale 5. 7.100 / 5. 7.100
libswresample 3. 7.100 / 3. 7.100
libpostproc 55. 7.100 / 55. 7.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from
'0689a8a9-43b5-45d2-b0e8-acbea6905ce1.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf57.56.101
Duration: 00:00:10.00, start: 0.000000, bitrate: 21 kb/s
Stream #0:0(und): Video: h264 (High 4:4:4 Predictive) (avc1 /
0x31637661), yuv444p, 1920x1080 [SAR 1:1 DAR 16:9], 18 kb/s, 30 fps, 30
tbr, 15360 tbn, 60 tbc (default)
Metadata:
handler_name : VideoHandler
Input #1, gif, from '02a6e696-969b-4a90-9444-e4b0b4d6f6da.gif':
Duration: 00:00:01.20, start: 0.000000, bitrate: 1437 kb/s
Stream #1:0: Video: gif, bgra, 480x279, 7.42 fps, 6.58 tbr, 100 tbn,
100 tbc
Stream mapping:
Stream #0:0 (h264) -> overlay:main
Stream #1:0 (gif) -> overlay:overlay
overlay -> Stream #0:0 (libx264)
Press [q] to stop, [?] for help
[libx264 @ 0x7f997c80a800] using SAR=1/1
[libx264 @ 0x7f997c80a800] using cpu capabilities: MMX2 SSE2Fast SSSE3
SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 0x7f997c80a800] profile High, level 4.0, 4:2:0, 8-bit
[libx264 @ 0x7f997c80a800] 264 - core 161 r3018M db0d417 - H.264/MPEG-4
AVC codec - Copyleft 2003-2020 - http://www.videolan.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=6
lookahead_threads=1 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_lookahead=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 'output.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf58.45.100
Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p,
1920x1080 [SAR 1:1 DAR 16:9], q=-1--1, 30 fps, 15360 tbn, 30 tbc (default)
Metadata:
encoder : Lavc58.91.100 libx264
Side data:
cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A
frame= 300 fps= 62 q=-1.0 Lsize= 69kB time=00:00:09.90 bitrate=
57.1kbits/s speed=2.05x
video:65kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
muxing overhead: 6.697149%
[libx264 @ 0x7f997c80a800] frame I:2 Avg QP: 8.70 size: 7746
[libx264 @ 0x7f997c80a800] frame P:76 Avg QP:12.24 size: 433
[libx264 @ 0x7f997c80a800] frame B:222 Avg QP:14.13 size: 77
[libx264 @ 0x7f997c80a800] consecutive B-frames: 1.0% 0.0% 3.0% 96.0%
[libx264 @ 0x7f997c80a800] mb I I16..4: 89.9% 8.4% 1.7%
[libx264 @ 0x7f997c80a800] mb P I16..4: 0.2% 0.0% 0.0% P16..4: 0.2%
0.0% 0.0% 0.0% 0.0% skip:99.6%
[libx264 @ 0x7f997c80a800] mb B I16..4: 0.0% 0.0% 0.0% B16..8: 0.2%
0.0% 0.0% direct: 0.0% skip:99.8% L0:52.6% L1:47.3% BI: 0.1%
[libx264 @ 0x7f997c80a800] 8x8 transform intra:9.2% inter:34.0%
[libx264 @ 0x7f997c80a800] coded y,uvDC,uvAC intra: 2.6% 3.0% 2.5% inter:
0.0% 0.0% 0.0%
[libx264 @ 0x7f997c80a800] i16 v,h,dc,p: 98% 1% 2% 0%
[libx264 @ 0x7f997c80a800] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 62% 20% 16% 0%
0% 0% 0% 1% 0%
[libx264 @ 0x7f997c80a800] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 31% 23% 14% 4%
3% 8% 4% 8% 4%
[libx264 @ 0x7f997c80a800] i8c dc,h,v,p: 96% 2% 2% 0%
[libx264 @ 0x7f997c80a800] Weighted P-Frames: Y:2.6% UV:2.6%
[libx264 @ 0x7f997c80a800] ref P L0: 23.3% 3.8% 33.7% 39.2%
[libx264 @ 0x7f997c80a800] ref B L0: 89.6% 9.8% 0.6%
[libx264 @ 0x7f997c80a800] ref B L1: 98.9% 1.1%
[libx264 @ 0x7f997c80a800] kb/s:52.46
}}}
--
Ticket URL: <https://trac.ffmpeg.org/ticket/8985>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker
More information about the FFmpeg-trac
mailing list