问题
Im trying to make a small movie file from a folder with webcam images.
They are named like this:
00-00-38.jpg
00-05-37.jpg
00-10-37.jpg
00-15-37.jpg
H-M-S.jpg format
Although i tried patterntype glob and simpler commands i cannot get it to work.
This is what i tried:
ffmpeg -r 1 -pattern_type glob -i '*.jpg' -scale=720:-1 -c:v libx264 out.mp4
(got only one image)
ffmpeg -r 25 -i *.jpg -vf "scale=720:-1" output.mp4
(same size as a jpg file but no video)
Console output:
ffmpeg -framerate 1 -pattern_type glob -i "*.jpg" -vf scale=720:-1 -c:v libx264 -pix_fmt yuv420p out.mp4
ffmpeg version 1.0.10 Copyright (c) 2000-2014 the FFmpeg developers built on Jul 25 2014 07:50:40 with gcc 4.7 (Debian 4.7.2-5)
configuration: --prefix=/usr --extra-cflags='-g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Werror=format-security '
--extra-ldflags='-Wl,-z,relro' --cc='ccache cc' --enable-shared --enable-libmp3lame --enable-gpl --enable-nonfree --enable-libvorbis
--enable-pthreads --enable-libfaac --enable-libxvid --enable-postproc --enable-x11grab --enable-libgsm --enable-libtheora --enable-li
bopencore-amrnb --enable-libopencore-amrwb --enable-libx264 --enable-libspeex --enable-nonfree --disable-stripping --enable-libvpx --
enable-libschroedinger --disable-encoder=libschroedinger --enable-version3 --enable-libopenjpeg --enable-librtmp --enable-avfilter --
enable-libfreetype --enable-libvo-aacenc --disable-decoder=amrnb --enable-libvo-amrwbenc --enable-libaacplus --libdir=/usr/lib/x86_64
-linux-gnu --disable-vda --enable-libbluray --enable-libcdio --enable-gnutls --enable-frei0r --enable-openssl --enable-libass --enabl
e-libopus --enable-fontconfig --enable-libfdk-aac --enable-libdc1394 --disable-altivec --dis
libavutil 51. 73.101 / 51. 73.101
libavcodec 54. 59.100 / 54. 59.100
libavformat 54. 29.104 / 54. 29.104
libavdevice 54. 2.101 / 54. 2.101
libavfilter 3. 17.100 / 3. 17.100
libswscale 2. 1.101 / 2. 1.101
libswresample 0. 15.100 / 0. 15.100
libpostproc 52. 0.100 / 52. 0.100
[image2 @ 0x1d53f00] max_analyze_duration 5000000 reached at 5000000
Input #0, image2, from '*.jpg':
Duration: 00:04:48.00, start: 0.000000, bitrate: N/A
Stream #0:0: Video: mjpeg, yuvj420p, 800x593 [SAR 96:96 DAR 800:593], 1 fps, 1 tbr, 1 tbn, 1 tbc
[libx264 @ 0x1d35bc0] using SAR=1780/1779
[libx264 @ 0x1d35bc0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX XOP FMA4 FMA3 SSEMisalign LZCNT BMI1
[libx264 @ 0x1d35bc0] profile High, level 2.2
[libx264 @ 0x1d35bc0] 264 - core 132 - H.264/MPEG-4 AVC codec - Copyleft 2003-2013 - http://www.videolan.org/x264.html - options: ca
bac=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 8x8dc
t=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 key
int_min=1 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 : Lavf54.29.104
Stream #0:0: Video: h264 ([33][0][0][0] / 0x0021), yuv420p, 720x534 [SAR 1780:1779 DAR 800:593], q=-1--1, 1 tbn, 1 tbc
Stream mapping:
Stream #0:0 -> #0:0 (mjpeg -> libx264)
Press [q] to stop, [?] for help
frame= 288 fps=145 q=32763.0 Lsize= 349kB time=00:04:46.00 bitrate= 10.0kbits/s
video:345kB audio:0kB subtitle:0 global headers:0kB muxing overhead 1.208469%
[libx264 @ 0x1d35bc0] frame I:2 Avg QP: 2.80 size:130328
[libx264 @ 0x1d35bc0] frame P:73 Avg QP: 4.70 size: 1167
[libx264 @ 0x1d35bc0] frame B:213 Avg QP:17.33 size: 30
[libx264 @ 0x1d35bc0] consecutive B-frames: 1.4% 0.0% 0.0% 98.6%
[libx264 @ 0x1d35bc0] mb I I16..4: 20.2% 24.9% 55.0%
[libx264 @ 0x1d35bc0] mb P I16..4: 0.0% 0.0% 0.0% P16..4: 4.3% 0.1% 0.2% 0.0% 0.0% skip:95.5%
[libx264 @ 0x1d35bc0] mb B I16..4: 0.0% 0.0% 0.0% B16..8: 0.8% 0.0% 0.0% direct: 0.0% skip:99.2% L0: 5.4% L1:94.5% BI: 0.0
%
[libx264 @ 0x1d35bc0] 8x8 transform intra:24.9% inter:51.5%
[libx264 @ 0x1d35bc0] coded y,uvDC,uvAC intra: 99.4% 0.0% 0.0% inter: 0.6% 0.0% 0.0%
[libx264 @ 0x1d35bc0] i16 v,h,dc,p: 5% 19% 52% 25%
[libx264 @ 0x1d35bc0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 10% 28% 21% 4% 6% 4% 8% 5% 15%
[libx264 @ 0x1d35bc0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 14% 27% 13% 6% 8% 5% 9% 6% 12%
[libx264 @ 0x1d35bc0] i8c dc,h,v,p: 100% 0% 0% 0%
[libx264 @ 0x1d35bc0] Weighted P-Frames: Y:0.0% UV:0.0%
[libx264 @ 0x1d35bc0] ref P L0: 98.1% 0.0% 1.7% 0.2%
[libx264 @ 0x1d35bc0] ref B L0: 52.0% 48.0%
[libx264 @ 0x1d35bc0] ref B L1: 73.0% 27.0%
[libx264 @ 0x1d35bc0] kb/s:9.78
The video is 364KB without any video.
回答1:
Try this:
ffmpeg -framerate 1 -pattern_type glob -i "*.jpg" -vf scale=720:-1 -c:v libx264 -pix_fmt yuv420p out.mp4
If that doesn't work for you, include the exact command you used and the full console output indicating what is wrong.
回答2:
I've always done something along the lines of:
a=0
for i in *.jpg; do
new=$(printf "/home/Movies/jpgs/%04d.jpg" "$a")
cp -f "$i" "$new"
let a=a+1
done
to get the files in the right order, anything else breaks the encoding as soon as the input numbers are non-monotonic.
来源：https://stackoverflow.com/questions/28781131/ffmpeg-create-movie-from-timestamped-images