[FFmpeg-trac] #7115(undetermined:closed): Image BECOMES darker unexpectedly
FFmpeg
trac at avcodec.org
Sat Mar 31 12:55:16 EEST 2018
#7115: Image BECOMES darker unexpectedly
-------------------------------------+-------------------------------------
Reporter: testh001 | Owner:
Type: defect | Status: closed
Priority: normal | Component:
Version: git-master | undetermined
Keywords: | Resolution:
Blocking: | worksforme
Analyzed by developer: 0 | Blocked By:
| Reproduced by developer: 0
-------------------------------------+-------------------------------------
Comment (by testh001):
@cehoyos
Thanks for the response. I was thinking that you had closed this because
it is working as intended, but since you have said that the input and
output is looking same for you, I suppose what I am experiencing is
actually a bug.
Sorry for missing full output, I didn't know it is required, and sorry for
`-hide_banner` command, I didn't know it is prohibited. I think the
easiest way to demonstrate the issue is to attach screen recording. But I
hadn't find a way to attach large videos in the ticket, so I made a video
and posted to youtube, please take a look, I demonstrated the issue there:
https://www.youtube.com/watch?v=2mY1M0yK0ck
To make this issue valid, as you said, I am attaching full output
(including copyright banner):
{{{
ffmpeg version N-90535-gcdd6a525e4 Copyright (c) 2000-2018 the FFmpeg
developers
built with gcc 7.3.0 (GCC)
configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-
bzlib --e
nable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-
libblur
ay --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb
--enable-
libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine
--enab
le-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame
--enable-li
bvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-
libx265 --en
able-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp
--enable-
libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa
--enabl
e-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-amf
--enabl
e-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec
--enab
le-dxva2 --enable-avisynth
libavutil 56. 12.100 / 56. 12.100
libavcodec 58. 16.100 / 58. 16.100
libavformat 58. 10.100 / 58. 10.100
libavdevice 58. 2.100 / 58. 2.100
libavfilter 7. 13.100 / 7. 13.100
libswscale 5. 0.102 / 5. 0.102
libswresample 3. 0.101 / 3. 0.101
libpostproc 55. 0.100 / 55. 0.100
Input #0, png_pipe, from '1.png':
Duration: N/A, bitrate: N/A
Stream #0:0: Video: png, rgb24(pc), 1920x1080 [SAR 3779:3779 DAR
16:9], 25 t
br, 25 tbn, 25 tbc
Stream mapping:
Stream #0:0 -> #0:0 (png (native) -> h264 (libx264))
Press [q] to stop, [?] for help
[libx264 @ 000000592af5d580] using SAR=1/1
[libx264 @ 000000592af5d580] using cpu capabilities: MMX2 SSE2Fast LZCNT
SSSE3 S
SE4.2
[libx264 @ 000000592af5d580] profile High 4:4:4 Predictive, level 4.0,
4:4:4 8-b
it
[libx264 @ 000000592af5d580] 264 - core 155 r2901 7d0ff22 - H.264/MPEG-4
AVC cod
ec - Copyleft 2003-2018 - http://www.videolan.org/x264.html - options:
cabac=1 r
ef=3 deblock=1:0:0 analyse=0x1:0x111 me=hex subme=7 psy=1 psy_rd=1.00:0.00
mixed
_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=0 cqm=0 deadzone=21,11
fast_pski
p=1 chroma_qp_offset=4 threads=3 lookahead_threads=1 sliced_threads=0 nr=0
decim
ate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3
b_pyramid=2 b_a
dapt=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 '1.mp4':
Metadata:
encoder : Lavf58.10.100
Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv444p,
1920x1080 [
SAR 1:1 DAR 16:9], q=-1--1, 25 fps, 12800 tbn, 25 tbc
Metadata:
encoder : Lavc58.16.100 libx264
Side data:
cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
frame= 1 fps=0.0 q=28.0 Lsize= 2kB time=00:00:00.00
bitrate=206666.7kbi
ts/s speed=0.000999x
video:1kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
muxing ove
rhead: 68.196999%
[libx264 @ 000000592af5d580] frame I:1 Avg QP:13.00 size: 510
[libx264 @ 000000592af5d580] mb I I16..4: 100.0% 0.0% 0.0%
[libx264 @ 000000592af5d580] coded y,u,v intra: 0.0% 0.0% 0.0%
[libx264 @ 000000592af5d580] i16 v,h,dc,p: 99% 0% 1% 0%
[libx264 @ 000000592af5d580] kb/s:102.00
}}}
Please take a look at the screen recording I posted and please tell me if
I am doing anything wrong or is this a bug? And in case of the latter,
please reopen the issue, if possible.
Thanks :)
--
Ticket URL: <https://trac.ffmpeg.org/ticket/7115#comment:4>
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