Sample output of ffmpeg encoding a time lapse.

ffmpeg-output.log

$ ffmpeg -f image2 -r 24 -pattern_type glob -i '*.JPG' -vf "scale=trunc(iw/4)*2:trunc(ih/4)*2" -c:v libx264 time-lapse.mp4
ffmpeg version 2.2.4 Copyright (c) 2000-2014 the FFmpeg developers
  built on Jun 23 2014 16:31:17 with Apple LLVM version 5.1 (clang-503.0.40) (based on LLVM 3.4svn)
  configuration: --prefix=/usr/local/Cellar/ffmpeg/2.2.4 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-nonfree --enable-hardcoded-tables --enable-avresample --enable-vda --cc=clang --host-cflags= --host-ldflags= --enable-libx264 --enable-libfaac --enable-libmp3lame --enable-libxvid
  libavutil      52. 66.100 / 52. 66.100
  libavcodec     55. 52.102 / 55. 52.102
  libavformat    55. 33.100 / 55. 33.100
  libavdevice    55. 10.100 / 55. 10.100
  libavfilter     4.  2.100 /  4.  2.100
  libavresample   1.  2.  0 /  1.  2.  0
  libswscale      2.  5.102 /  2.  5.102
  libswresample   0. 18.100 /  0. 18.100
  libpostproc    52.  3.100 / 52.  3.100
Input #0, image2, from '*.JPG':
  Duration: 00:00:24.88, start: 0.000000, bitrate: N/A
    Stream #0:0: Video: mjpeg, yuvj422p(pc), 4000x3000, 25 tbr, 25 tbn, 25 tbc
[swscaler @ 0x7f8dba011a00] deprecated pixel format used, make sure you did set range correctly
No pixel format specified, yuvj422p for H.264 encoding chosen.
Use -pix_fmt yuv420p for compatibility with outdated media players.
[libx264 @ 0x7f8dba00fc00] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
[libx264 @ 0x7f8dba00fc00] profile High 4:2:2, level 5.0, 4:2:2 8-bit
[libx264 @ 0x7f8dba00fc00] 264 - core 142 r2412 d7e6896 - 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=20 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 '946-sunset-quarter-20-fps.mp4':
  Metadata:
    encoder         : Lavf55.33.100
    Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuvj422p, 2000x1500, q=-1--1, 10240 tbn, 20 tbc
Stream mapping:
  Stream #0:0 -> #0:0 (mjpeg -> libx264)
Press [q] to stop, [?] for help
frame=  622 fps=1.8 q=-1.0 Lsize=   26832kB time=00:00:31.00 bitrate=7090.6kbits/s
video:26829kB audio:0kB subtitle:0 data:0 global headers:0kB muxing overhead 0.013093%
[libx264 @ 0x7f8dba00fc00] frame I:3     Avg QP:21.54  size:230922
[libx264 @ 0x7f8dba00fc00] frame P:619   Avg QP:23.02  size: 43262
[libx264 @ 0x7f8dba00fc00] mb I  I16..4: 23.4% 50.9% 25.8%
[libx264 @ 0x7f8dba00fc00] mb P  I16..4:  8.1%  7.7%  0.3%  P16..4: 51.2%  7.2%  7.8%  0.0%  0.0%    skip:17.7%
[libx264 @ 0x7f8dba00fc00] 8x8 transform intra:48.0% inter:76.1%
[libx264 @ 0x7f8dba00fc00] coded y,uvDC,uvAC intra: 18.5% 60.3% 1.3% inter: 25.6% 56.3% 1.3%
[libx264 @ 0x7f8dba00fc00] i16 v,h,dc,p:  8% 31%  5% 56%
[libx264 @ 0x7f8dba00fc00] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 16% 18% 40%  5%  5%  4%  6%  3%  4%
[libx264 @ 0x7f8dba00fc00] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 23% 23% 26%  5%  6%  5%  6%  3%  5%
[libx264 @ 0x7f8dba00fc00] i8c dc,h,v,p: 47% 25% 20%  8%
[libx264 @ 0x7f8dba00fc00] Weighted P-Frames: Y:52.0% UV:18.7%
[libx264 @ 0x7f8dba00fc00] ref P L0: 45.5% 14.9% 17.7% 13.9%  8.0%
[libx264 @ 0x7f8dba00fc00] kb/s:7066.71