[FFmpeg-trac] #4298(avfilter:new): zoompan filter creates shaky image
FFmpeg
trac at avcodec.org
Thu Feb 5 12:27:32 CET 2015
#4298: zoompan filter creates shaky image
----------------------------------+--------------------------------------
Reporter: slhck | Type: defect
Status: new | Priority: normal
Component: avfilter | Version: git-master
Keywords: zoompan | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
----------------------------------+--------------------------------------
Summary of the bug:
When using the `zoompan` filter and setting any x or y (or both) value,
the effect is shaky and jerky.
How to reproduce:
{{{
ffmpeg -framerate 25 -loop 1 -i in.jpg -vf
"zoompan=z='min(zoom+0.0015,1.4)':x=50:d=150" -t 6 -s 640x380 out.mp4
ffmpeg version N-69568-g21051af Copyright (c) 2000-2015 the FFmpeg
developers
built with gcc 4.9.2 (GCC)
configuration: --enable-gpl --enable-version3 --disable-w32threads
--enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r
--enable-gnutls --enable-iconv --enable-libass --enable-libbluray
--enable-libbs2b --enable-libcaca --enable-libfreetype --enable-libgme
--enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame
--enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg
--enable-libopus --enable-librtmp --enable-libschroedinger --enable-
libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-
libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-
libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-
libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-lzma
--enable-decklink --enable-zlib
libavutil 54. 18.100 / 54. 18.100
libavcodec 56. 21.102 / 56. 21.102
libavformat 56. 19.100 / 56. 19.100
libavdevice 56. 4.100 / 56. 4.100
libavfilter 5. 9.103 / 5. 9.103
libswscale 3. 1.101 / 3. 1.101
libswresample 1. 1.100 / 1. 1.100
libpostproc 53. 3.100 / 53. 3.100
[mjpeg @ 0000000000342a60] ignoring invalid SAR: 540/409
Input #0, image2, from 'out.jpg':
Duration: 00:00:00.04, start: 0.000000, bitrate: 3236 kb/s
Stream #0:0: Video: mjpeg, yuvj420p(pc, bt470bg/unknown/unknown),
640x360, 25 fps, 25 tbr, 25 tbn, 25 tbc
File 'out.mp4' already exists. Overwrite ? [y/N] y
[swscaler @ 0000000000307fe0] deprecated pixel format used, make sure you
did set range correctly
No pixel format specified, yuvj420p for H.264 encoding chosen.
Use -pix_fmt yuv420p for compatibility with outdated media players.
[libx264 @ 0000000004cf00a0] using cpu capabilities: MMX2 SSE2Fast SSSE3
SSE4.2 AVX
[libx264 @ 0000000004cf00a0] profile High, level 3.0
[libx264 @ 0000000004cf00a0] 264 - core 144 r2525 40bb568 - H.264/MPEG-4
AVC codec - Copyleft 2003-2014 - 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 'out.mp4':
Metadata:
encoder : Lavf56.19.100
Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021),
yuvj420p(pc), 640x360, q=-1--1, 25 fps, 12800 tbn, 25 tbc
Metadata:
encoder : Lavc56.21.102 libx264
Stream mapping:
Stream #0:0 -> #0:0 (mjpeg (native) -> h264 (libx264))
Press [q] to stop, [?] for help
[swscaler @ 0000000004ca5f80] deprecated pixel format used, make sure you
did set range correctly
Last message repeated 1 times
[swscaler @ 0000000004ca5f80] Warning: data is not aligned! This can lead
to a speedloss
[swscaler @ 0000000004ca5f80] deprecated pixel format used, make sure you
did set range correctly
Last message repeated 55 times
[swscaler @ 0000000009502c80] deprecated pixel format used, make sure you
did set range correctly
Last message repeated 41 times
[output stream 0:0 @ 00000000002cb160] 100 buffers queued in output stream
0:0, something may be wrong.
[swscaler @ 0000000009502c80] deprecated pixel format used, make sure you
did set range correctly
Last message repeated 49 times
[swscaler @ 0000000007cc2780] deprecated pixel format used, make sure you
did set range correctly
Last message repeated 1 times
frame= 150 fps=107 q=-1.0 Lsize= 122kB time=00:00:05.92 bitrate=
168.6kbits/s
video:119kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
muxing overhead: 2.158680%
[libx264 @ 0000000004cf00a0] frame I:1 Avg QP:18.48 size: 13916
[libx264 @ 0000000004cf00a0] frame P:38 Avg QP:18.97 size: 1965
[libx264 @ 0000000004cf00a0] frame B:111 Avg QP:23.90 size: 296
[libx264 @ 0000000004cf00a0] consecutive B-frames: 1.3% 0.0% 0.0% 98.7%
[libx264 @ 0000000004cf00a0] mb I I16..4: 13.4% 64.7% 22.0%
[libx264 @ 0000000004cf00a0] mb P I16..4: 0.6% 1.6% 0.2% P16..4:
37.9% 10.8% 5.9% 0.0% 0.0% skip:43.1%
[libx264 @ 0000000004cf00a0] mb B I16..4: 0.0% 0.0% 0.0% B16..8:
33.5% 0.3% 0.0% direct: 0.1% skip:66.0% L0:47.5% L1:51.4% BI: 1.2%
[libx264 @ 0000000004cf00a0] 8x8 transform intra:65.9% inter:74.8%
[libx264 @ 0000000004cf00a0] coded y,uvDC,uvAC intra: 50.9% 30.8% 5.7%
inter: 2.8% 1.3% 0.0%
[libx264 @ 0000000004cf00a0] i16 v,h,dc,p: 16% 37% 6% 42%
[libx264 @ 0000000004cf00a0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 27% 24% 29%
2% 3% 3% 4% 3% 4%
[libx264 @ 0000000004cf00a0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 29% 24% 15%
5% 7% 6% 6% 4% 4%
[libx264 @ 0000000004cf00a0] i8c dc,h,v,p: 62% 21% 16% 2%
[libx264 @ 0000000004cf00a0] Weighted P-Frames: Y:0.0% UV:0.0%
[libx264 @ 0000000004cf00a0] ref P L0: 67.5% 6.2% 16.7% 9.6%
[libx264 @ 0000000004cf00a0] ref B L0: 91.5% 6.8% 1.7%
[libx264 @ 0000000004cf00a0] ref B L1: 95.3% 4.7%
[libx264 @ 0000000004cf00a0] kb/s:161.96
}}}
When `x` is not set, there is no shakiness (see correct output).
Also mentioned here:
* http://superuser.com/questions/873939/ffmpeg-how-to-zoomin-a-video-from-
the-center?noredirect=1
* http://superuser.com/questions/776452/ffmpeg-create-zoompan-shaky-or-
jittery
--
Ticket URL: <https://trac.ffmpeg.org/ticket/4298>
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