On Tue, Oct 9, 2018 at 2:36 AM Carl Eugen Hoyos <[email protected]> wrote: > > 2018-10-09 1:03 GMT+02:00, Jeroen Ooms <[email protected]>: > > I would like to capture the screen in MacOS. This works via the command > > line: > > > > Command line: ffmpeg -f avfoundation -i "1" -pix_fmt yuv420p -r 25 > > -t 5 out.mov > > > > However I can't figure out how to do this in C. I tried the following, > > but it gives an error "Device selection unsupported.". > > > > AVBufferRef *capture; > > AVDictionary *opts = NULL; > > av_dict_set(&opts, "video_device_index", "1", 0); > > av_dict_set(&opts, "audio_device_index", "none", 0); > > av_hwdevice_ctx_create(&capture, AV_HWDEVICE_TYPE_VIDEOTOOLBOX, > > "avfoundation", opts, 0); > > From the command line above, avfoundation > is a device / format, not a hwdevice.
I don't understand, it is listed as a video device in av_input_video_device_next(). Which API is used to read from such an input then? I can only find command line examples for avfoundation, it is unclear to me how to capture the camera/screen in C. _______________________________________________ ffmpeg-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
