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. > [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) [...] If you only want a segment of your desktop, you can let dshow capture the complete 1366x768, and have ffmpeg crop the video to the part you want to preserve. Insert (e.g.) "-vf crop=x=0:y=0:w=1024:h=768". Cheers, hope this helps, Moritz _______________________________________________ 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".
