[FFmpeg-user] How to add zoom in effect to a video?

Mon Feb 9 10:39:03 CET 2015

Hi,
I'm working in a project where I should generate a video, from an input 
set of videos or images.
The problem is when I generate the video I must add a zoomin effect to 
each input element.

I solved the problem with images in this way (I repeat this command for 
each image):
ffmpeg -loop 1 -i test.jpg -vf "zoompan=z='min(zoom+0.0015,1.5)':d=125" 
-c:v mpeg2video -t 5 -s "796x450" test.mpeg

And after I concat the generated videos. I reencode with mpeg2 because 
is better than mp4 to concat.

Now, I'm trying the same solution for videos, but without success.

This is the output:

ffmpeg -i small.mp4 -vf 
"zoompan=z='min(zoom+0.0015,1.5)':d=125:s=640x360" -c:v libx264 -c:a 
libfdk_aac -y smallzoom.mp4ffmpeg version 2.3.git Copyright (c) 
2000-2014 the FFmpeg developers
   built on Aug  7 2014 18:14:20 with gcc 4.6 (Ubuntu/Linaro 4.6.3-1ubuntu5)
   configuration: --prefix=/home/stuzzo/ffmpeg_build 
--extra-cflags=-I/home/stuzzo/ffmpeg_build/include 
--extra-ldflags=-L/home/stuzzo/ffmpeg_build/lib 
--bindir=/home/stuzzo/bin --extra-libs=-ldl --enable-gpl --enable-libass 
--enable-libfdk-aac --enable-libmp3lame --enable-libopus 
--enable-libtheora --enable-libvorbis --enable-libvpx --enable-libxvid 
--enable-libx264 --enable-nonfree
   libavutil      52. 98.100 / 52. 98.100
   libavcodec     55. 72.102 / 55. 72.102
   libavformat    55. 51.101 / 55. 51.101
   libavdevice    55. 13.102 / 55. 13.102
   libavfilter     4. 11.102 /  4. 11.102
   libswscale      2.  6.100 /  2.  6.100
   libswresample   0. 19.100 /  0. 19.100
   libpostproc    52.  3.100 / 52.  3.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'small.mp4':
   Metadata:
     major_brand     : mp42
     minor_version   : 0
     compatible_brands: mp42isomavc1
     creation_time   : 2010-03-20 21:29:11
     encoder         : HandBrake 0.9.4 2009112300
   Duration: 00:00:05.57, start: 0.000000, bitrate: 551 kb/s
     Stream #0:0(und): Video: h264 (Constrained Baseline) (avc1 / 
0x31637661), yuv420p(tv, bt709), 560x320, 465 kb/s, 30 fps, 30 tbr, 90k 
tbn, 60 tbc (default)
     Metadata:
       creation_time   : 2010-03-20 21:29:11
       encoder         : JVT/AVC Coding
     Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 48000 Hz, mono, 
fltp, 83 kb/s (default)
     Metadata:
       creation_time   : 2010-03-20 21:29:11
[libx264 @ 0x3066180] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
[libx264 @ 0x3066180] profile High, level 3.0
[libx264 @ 0x3066180] 264 - core 142 - 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=12 
lookahead_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_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 'smallzoom.mp4':
   Metadata:
     major_brand     : mp42
     minor_version   : 0
     compatible_brands: mp42isomavc1
     encoder         : Lavf55.51.101
     Stream #0:0(und): Video: h264 (libx264) ([33][0][0][0] / 0x0021), 
yuv420p, 640x360, q=-1--1, 30 fps, 15360 tbn, 30 tbc (default)
     Metadata:
       creation_time   : 2010-03-20 21:29:11
       encoder         : Lavc55.72.102 libx264
     Stream #0:1(eng): Audio: aac (libfdk_aac) ([64][0][0][0] / 0x0040), 
48000 Hz, mono, s16, 104 kb/s (default)
     Metadata:
       creation_time   : 2010-03-20 21:29:11
       encoder         : Lavc55.72.102 libfdk_aac
Stream mapping:
   Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
   Stream #0:1 -> #0:1 (aac (native) -> aac (libfdk_aac))
Press [q] to stop, [?] for help
[output stream 0:0 @ 0x30671a0] 100 buffers queued in output stream 0:0, 
something may be wrong.
frame=  175 fps= 11 q=-1.0 Lsize=     244kB time=00:00:05.76 bitrate= 
346.6kbits/s dup=0 drop=20575
video:165kB audio:71kB subtitle:0kB other streams:0kB global headers:0kB 
muxing overhead: 3.131025%
[libx264 @ 0x3066180] frame I:1     Avg QP:20.98  size: 20122
[libx264 @ 0x3066180] frame P:46    Avg QP:21.52  size:  2151
[libx264 @ 0x3066180] frame B:128   Avg QP:25.80  size:   385
[libx264 @ 0x3066180] consecutive B-frames:  2.3%  0.0%  1.7% 96.0%
[libx264 @ 0x3066180] mb I  I16..4: 46.3% 27.6% 26.1%
[libx264 @ 0x3066180] mb P  I16..4:  1.8%  0.4%  0.1%  P16..4: 37.3%  
7.8%  5.7%  0.0%  0.0%    skip:46.8%
[libx264 @ 0x3066180] mb B  I16..4:  0.0%  0.1%  0.0%  B16..8: 22.7%  
1.1%  0.2%  direct: 0.4%  skip:75.5%  L0:45.0% L1:52.6% BI: 2.4%
[libx264 @ 0x3066180] 8x8 transform intra:25.2% inter:68.0%
[libx264 @ 0x3066180] coded y,uvDC,uvAC intra: 29.7% 62.3% 31.5% inter: 
2.9% 9.0% 1.4%
[libx264 @ 0x3066180] i16 v,h,dc,p:  0% 30%  1% 69%
[libx264 @ 0x3066180] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 14% 30% 17% 4%  6%  
4% 13%  4%  9%
[libx264 @ 0x3066180] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 18% 30%  9% 4%  8%  
6% 13%  4%  7%
[libx264 @ 0x3066180] i8c dc,h,v,p: 44% 40%  9%  7%
[libx264 @ 0x3066180] Weighted P-Frames: Y:0.0% UV:0.0%
[libx264 @ 0x3066180] ref P L0: 61.2%  5.1% 22.5% 11.1%
[libx264 @ 0x3066180] ref B L0: 82.0% 13.6%  4.4%
[libx264 @ 0x3066180] ref B L1: 94.0%  6.0%
[libx264 @ 0x3066180] kb/s:230.91

The result appears shaky.
I posted this problem also on superuser 
http://superuser.com/questions/870554/how-to-add-zoom-in-effect-to-a-video
and a problem related is here 
http://superuser.com/questions/873939/ffmpeg-how-to-zoomin-a-video-from-the-center

Any help would be appreciated!

Thank you.
Alfredo