Eu tenho um conjunto de imagens de uma captura de lapso de tempo (172 arquivos JPG) que desejo converter em um filme. Eu tentei vários parâmetros com o FFmpeg, mas tudo que consigo é um vídeo com quadros pretos (embora tenha o tamanho esperado).
ffmpeg -f image2 -vcodec mjpeg -y -i img_%03d.jpg timelapse2.mpg
O comando acima cria este vídeo: link
O que eu espero é algo assim (criado com o Time Lapse Assembler.app): link - Esta é a minha opção de fallback, mas eu realmente gostaria de criar filmes timelapse de um script.
Estou no OSX Lion (10.7.3) com a versão FFmpeg (0.10) instalada via Homebrew.
Eu também tentei encontrar uma versão adequada do mencoder para o OSX, mas isso não parece ser uma tarefa fácil. Além disso, a conversão do ImageMagick não parece funcionar muito bem, cria uma saída muito ruim e parece que não há muito que eu possa fazer sobre isso ...
Editar :
Com libx264 e um contêiner mp4:
ffmpeg -f image2 -y -i img_%03d.jpg -vcodec libx264 timelapse4.mp4
Saída:
ffmpeg version 0.10 Copyright (c) 2000-2012 the FFmpeg developers
built on Mar 26 2012 13:47:02 with clang 3.0 (tags/Apple/clang-211.12)
configuration: --prefix=/usr/local/Cellar/ffmpeg/0.10 --enable-shared --enable-gpl --enable-version3 --enable-nonfree --enable-hardcoded-tables --enable-libfreetype --cc=/usr/bin/clang --enable-libx264 --enable-libfaac --enable-libmp3lame --enable-librtmp --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libxvid --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libass --disable-ffplay
libavutil 51. 34.101 / 51. 34.101
libavcodec 53. 60.100 / 53. 60.100
libavformat 53. 31.100 / 53. 31.100
libavdevice 53. 4.100 / 53. 4.100
libavfilter 2. 60.100 / 2. 60.100
libswscale 2. 1.100 / 2. 1.100
libswresample 0. 6.100 / 0. 6.100
libpostproc 52. 0.100 / 52. 0.100
Input #0, image2, from 'img_%03d.jpg':
Duration: 00:00:06.88, start: 0.000000, bitrate: N/A
Stream #0:0: Video: mjpeg, yuvj420p, 3888x2592 [SAR 72:72 DAR 3:2], 25 fps, 25 tbr, 25 tbn, 25 tbc
[buffer @ 0x7f8ec9415f20] w:3888 h:2592 pixfmt:yuvj420p tb:1/1000000 sar:72/72 sws_param:
[libx264 @ 0x7f8ec981d800] using SAR=1/1
[libx264 @ 0x7f8ec981d800] frame MB size (243x162) > level limit (36864)
[libx264 @ 0x7f8ec981d800] MB rate (984150) > level limit (983040)
[libx264 @ 0x7f8ec981d800] using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE4.2 AVX
[libx264 @ 0x7f8ec981d800] profile High, level 5.1
[libx264 @ 0x7f8ec981d800] 264 - core 120 - H.264/MPEG-4 AVC codec - Copyleft 2003-2011 - 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 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 'timelapse4.mp4':
Metadata:
encoder : Lavf53.31.100
Stream #0:0: Video: h264 (![0][0][0] / 0x0021), yuvj420p, 3888x2592 [SAR 72:72 DAR 3:2], q=-1--1, 25 tbn, 25 tbc
Stream mapping:
Stream #0:0 -> #0:0 (mjpeg -> libx264)
Press [q] to stop, [?] for help
frame= 172 fps= 18 q=-1.0 Lsize= 259kB time=00:00:06.80 bitrate= 312.3kbits/s
video:256kB audio:0kB global headers:0kB muxing overhead 1.089647%
[libx264 @ 0x7f8ec981d800] frame I:1 Avg QP: 9.60 size:212820
[libx264 @ 0x7f8ec981d800] frame P:43 Avg QP:30.50 size: 291
[libx264 @ 0x7f8ec981d800] frame B:128 Avg QP:31.00 size: 285
[libx264 @ 0x7f8ec981d800] consecutive B-frames: 0.6% 0.0% 1.7% 97.7%
[libx264 @ 0x7f8ec981d800] mb I I16..4: 22.5% 77.2% 0.3%
[libx264 @ 0x7f8ec981d800] mb P I16..4: 0.0% 0.0% 0.0% P16..4: 0.0% 0.0% 0.0% 0.0% 0.0% skip:100.0%
[libx264 @ 0x7f8ec981d800] mb B I16..4: 0.0% 0.0% 0.0% B16..8: 0.0% 0.0% 0.0% direct: 0.0% skip:100.0% L0: 1.2% L1:98.8% BI: 0.0%
[libx264 @ 0x7f8ec981d800] 8x8 transform intra:77.2% inter:100.0%
[libx264 @ 0x7f8ec981d800] coded y,uvDC,uvAC intra: 41.2% 23.4% 0.6% inter: 0.0% 0.0% 0.0%
[libx264 @ 0x7f8ec981d800] i16 v,h,dc,p: 40% 25% 35% 1%
[libx264 @ 0x7f8ec981d800] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 36% 32% 30% 1% 0% 0% 0% 0% 0%
[libx264 @ 0x7f8ec981d800] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 51% 40% 6% 1% 1% 0% 1% 0% 1%
[libx264 @ 0x7f8ec981d800] i8c dc,h,v,p: 60% 21% 19% 0%
[libx264 @ 0x7f8ec981d800] Weighted P-Frames: Y:0.0% UV:0.0%
[libx264 @ 0x7f8ec981d800] ref P L0: 92.3% 0.0% 0.0% 7.7%
[libx264 @ 0x7f8ec981d800] ref B L0: 50.0% 0.0% 50.0%
[libx264 @ 0x7f8ec981d800] ref B L1: 99.4% 0.6%
[libx264 @ 0x7f8ec981d800] kb/s:304.49
Versão timelapse4.mp4: link