On 1/6/17, Moritz Barsnick <barsn...@gmx.net> wrote: > On Fri, Jan 06, 2017 at 00:14:31 -0800, Tim Hiles wrote: >> I've tried recording my screen set at 1366 x 768 and specified -video_size >> to 1024x768. The command did create a recording however it did not change >> the size. The output is below (further comments after the output). > > Can you be a bit more clear? Are you trying to record the full 1366x768 > and resize it to 1024x768, or are you trying to capture only 1024x768 > of your screen? > >> ffmpeg -rtbufsize 1000M -f dshow -i >> video="screen-capture-recorder":audio="Internal Mic (IDT High Definiti" >> -flags +global_header -vcodec libx264 -pix_fmt yuv420p -video_size >> 1024x768 -preset ultrafast -acodec aac -ac 1 -ar 22050 "Sessiontest2.mp4" > > Since -video_size is an input option, it won't work this way. If you > want to tell the input to use this size, you need to place it *before* > the respective "-i"; which you did in your second example: > >> ...which is switching -video_size parameter before the codec and apply it >> to my command this is what I get. >> >> ffmpeg -rtbufsize 1000M -f dshow -video_size 1024x768 -i >> video="screen-capture-recorder":audio="Internal Mic (IDT High Definiti" >> -flags +global_header -vcodec libx264 -pix_fmt yuv420p -video_size >> 1024x768 -preset ultrafast -acodec aac -ac 1 -ar 22050 "Sessiontest2.mp4" > > The second "-video_size" has no effect, as mentioned above.
Yeah I suppose in the perfect world FFmpeg would at least *complain* about unused parameters, but it is as Maritz described. >> [dshow @ 0000000000558fe0] Could not set video options >> video=screen-capture-recorder:audio=Internal Mic (IDT High Definiti: I/O >> error > > As the documentation says: "If the device does not support the > requested options, it will fail to open." > > I would guess that the "-video_size" option is not supported by > screen-capture-recorder. Reading about it does confirm this: > > https://github.com/rdp/screen-capture-recorder-to-video-windows-free > See the section "Configuration": > > By default, it captures the "full screen" of the main desktop monitor > [...] To configure it differently, run the provided "configuration > setup utilities/shortcuts" or adjust registry settings before > starting a run (advanced users only) [...] I think it might respect video_size as well but I'm not certain, and definitely not sure if it i truncates versus scaled or what not, anyway you could try it. Yes, I'm not sure and I wrote it LOL, guess it's been awhile. _______________________________________________ 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".