What version of ffmpeg are you using here? You should not have to specify video_size by default it should capture the whole thing.
On 12/14/15, Casey Price <[email protected]> wrote: > Hello, > > I'm currently trying to record the desktop of a surface pro 3 running > windows 10 using screen-capture-recorder and ffmpeg. The following works in > the command line. > > ffmpeg -f dshow -video_size 1280x853 -i video=screen-capture-recorder > output.mpg > > However when I try to do the same in code I get the error > > '[dshow] Could not set video options' > > Which only happens when set the video_size option by doing the following: > > > av_dict_set(&dictionary, "video_size", "1280x853", NULL); > > if ((ret = avformat_open_input(&ifmt_ctx, input_device, inputFormat, > &dictionary)) < 0) { > printf("Cannot open input file\n"); > return ret; > } > > I've also noticed that screen-capture-recorder says it only supports up to > 1280x853 video size when doing -list_options, even though the resolution of > the tablet in windows is 1920x1280, I think this is due to some software > scaling that is going on with the surface, but not entirely certain because > the command line arguments that I posted above that works only records the > top left portion of the screen. > > Also, if I don't specify the video_size in the dictionary, the recording > works but only records a portion of the desktop. > > Has anyone had an issue like this before? I'm not entirely certain if the > issue lies with windows 10, directshow, screen-capture-recorder, or if I'm > just doing something wrong in my code. > > Thanks, > Casey > _______________________________________________ Libav-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/libav-user
