Hi Kevin, Replies below..
On Sun, Feb 25, 2018 at 7:24 AM, Kevin Duffey <kevinmduffey-at-yahoo....@ffmpeg.org> wrote: > Hi all, > I have figured out from various sources how to add a watermark using a png > file. Works well enough. > What I also want to do is add timecode at 00:00:00:00 to my video as a text > overlay. > I have tried a few variations with the filter_complex, but I cant seem to get > past any number of issues. In particular I get an issue with both text and a > text file.. though I am never loading a text file, when trying to use > drawtext. > This is on a windows machine, though I suspect other than some of the batch > syntax, it would be the same call on linux or mac. In particular I am trying > to convert a directory of MOV DNxHR encoded videos to H.265, with the > watermark AND timecode added. I have to do this on a regular basis at work and we use this script on pretty much a daily basis: https://github.com/kieranjol/IFIscripts/blob/master/bitc.py - it works on windows, linux and OSX. It looks for the starting timecode within the file if it exists and adds our institutions watermark, but it should be easy enough to alter these in the code itself. Let me know if you need further help with it. I added standalone versions of the ffmpeg calls in that script to ffmprovisr, which could help you out too - https://amiaopensource.github.io/ffmprovisr/#overlay > I think it would not be hard to add them in two passes.. e.g. add timecode > first pass with copy mode, to keep it as DNxHR, then 2nd pass add watermark > and convert to H.265 with lower resolution. I was hoping, however, to do it > all in one pass, so as to save a lot of time Yeah, you should be able to do it in one, however you can't add burn in a timecode and use copy mode. You can't use any filters with -c copy or -c:v copy as far as I know. > Here is what I have, which fails with Cannot find a valid font for the > family Sans. Even though I specify the font file, and have tried by using \\ > and \\\ as well. One time I was able to get past that, though I dont recall > how now, and got the issue of the using both text and a text file with > drawtext. If it's any consolation, I spent many many hours figuring out the correct escaping. I'd fix it in Windows, then it would break in OSX or linux. > Any help would be greatly appreciated. Naturally the watermark.png is the > watermark image. My source DNxHR is 4K. Here I am specifying h.264, though I > would like to render to H.265 if possible... and assuming yahoo accept it as > an upload format. > > for /R %%a in ("*.mov") do ffmpeg -i "%%a" -i watermark.png -filter_complex > "[2:v]scale=4096x2160 > [ovrl],[1:v][ovrl]overlay=(main_w-overlay_w)/2:(main_h-overlay_h)/2; > drawtext=fontfile='C:\\Windows\\Fonts||arial.ttf':fontsize=15:timecode='00\:00\:00\:00':r=24:x=(w-tw)/2:y=h-(2*lh):fontcolor=white" > -s 720x480 -c:v libx264 -preset ultrafast -crf 20 d:\encoded\%%~na.mp4 Why are there two || characters before arial.ttf? Batch scripts are not supported here, just regular ffmpeg calls. Turning the ffmpeg call into a batch script is something you have to do. Also it helps to copy/paste the full uncut terminal output of your ffmpeg command and the output. Your command line is pretty complex and difficult to replicate, so it also helps to simplify the issue as much as possible, considering you just need to find out how to escape characters in windows in a ffmpeg/drawtext call. C\\:\\\\Windows\\\\Fonts\\\\'arial.ttf' ^^ worked for me - so two escapes for the colon, three for each slash, and then place 'arial.tff' in single quotes. Here is a very simple command line which works on Windows 10: ffmpeg -i out.mkv -vf drawtext=fontfile=C\\:\\\\Windows\\\\Fonts\\\\'arial.ttf':fontsize=14:text=watermark_text -y out.mov Try your ffmpeg call without the batch script first and see if it works. Sometimes scripts might need their own escaping, and that's a different question for a different place.. Best, Kieran O'Leary. _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
