Ladies & Gents,
As always, much thanks and gratitude to those who provide guidance helping us that don't quite get it yet.
That said; I have a some 6000 photos that were captured from a usb camera using motion, but something happened with the power to the laptop and so the output video was never created as in my tests. So now I need to turn these into a video for import to kdenlive as part of a larger construction experiment.
I have ffmpeg installed and I tried from the director where the files are stored
Code:
ffmpeg -y -i *.jpg imagestovideo.mpg
but clearly something is not right with that command as I get this error
Code:
ffmpeg version 2.8.5 Copyright (c) 2000-2016 the FFmpeg developers
built with gcc 5.3.1 (Debian 5.3.1-6) 20160114
configuration: --prefix=/usr --extra-cflags='-g -O2 -fstack-protector-strong -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-libopencore-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 --enable-libopus --enable-fontconfig --enable-libpulse --disable-mips32r2 --disable-mipsdspr1 --disable-mipsdspr2 --enable-libvidstab --enable-libzvbi --enable-avresample --disable-htmlpages --disable-podpages --enable-libutvideo --enable-libfdk-aac --enable-libx265 --enable-libbs2b --enable-libilbc --enable-libopenh264 --enable-libkvazaar --enable-libiec61883 --enable-vaapi --enable-opencl --enable-libdc1394 --disable-altivec --shlibdir=/usr/lib/x86_64-linux-gnu
libavutil 54. 31.100 / 54. 31.100
libavcodec 56. 60.100 / 56. 60.100
libavformat 56. 40.101 / 56. 40.101
libavdevice 56. 4.100 / 56. 4.100
libavfilter 5. 40.101 / 5. 40.101
libavresample 2. 1. 0 / 2. 1. 0
libswscale 3. 1.101 / 3. 1.101
libswresample 1. 2.101 / 1. 2.101
libpostproc 53. 3.100 / 53. 3.100
[mjpeg @ 0x21a48e0] Changeing bps to 8
Input #0, image2, from '01-20160122091158-05.jpg':
Duration: 00:00:00.04, start: 0.000000, bitrate: 3480 kb/s
Stream #0:0: Video: mjpeg, yuvj420p(pc, bt470bg/unknown/unknown), 352x288 [SAR 1:1 DAR 11:9], 25 tbr, 25 tbn, 25 tbc
[AVFilterGraph @ 0xa269f20] Error initializing threading.
[AVFilterGraph @ 0xa269f20] Error creating filter 'null'
Error opening filters!
The examples at
http://photo.stackexchange.com/quest...raphs-in-linux and
http://hamelot.co.uk/visualization/u...-into-a-video/ and others show using %d in the command line but when I try that the video files are not found. I assumed that *.jpg would use all the files in the directory ffmpeg was run from, it seams I was wrong.
In the one example they have pic%04d.png which is for padding zeros to the file name , in their case all the files start with pic followed by a number string. In my case each files starts with a number string and zero padding is not needed as far as I can tell. The file names go as
Code:
01-20160122091158-05.jpg
01-20160122091158-15.jpg
01-20160122091158-25.jpg
01-20160122091159-05.jpg
01-20160122091159-15.jpg
.....some 6280 files later
43-20160122122155-23.jpg
43-20160122122156-03.jpg
43-20160122122156-13.jpg
I don't know what causes the name to change from 01 to 02 and so on to 43. The rest of the file name I gather is a time/date stamp. Looking at those assumed time/date stamp names makes me think that I may need to rename the files by actual creation time. Although the photos were taken from the command line with
Code:
ueser@host:~/path/to/folder$ motion
so I assumed that the files were named in sequence correctly. But that is not really an issue at this point because ffmpeg is not generating the video for me.
Any pointers?
Do I need to set a framerate or image size for ffmpeg? Some websites indicate that is not needed.
Thanks
