% ncplayer(1) % nick black % v2.3.12 # NAME ncplayer - Render images and video to a terminal # SYNOPSIS **ncplayer** [**-h**] [**-V**] [**-q**] [**-d** ***delaymult***] [**-l** ***loglevel***] [**-b** ***blitter***] [**-s** ***scalemode***] [**-k**] [**-L**] [**-t** ***seconds***] [**-n**] [**-a** ***color***] files # DESCRIPTION **ncplayer** uses a multimedia-enabled Notcurses to render images and videos to a terminal. By default, **stretch**-type scaling is used to fill the rendering area, and the **sex**-type blitter is used (where known to work well) for a 3x2→1 mapping from pixels to cells. In a terminal that doesn't support Unicode 13 sextants, the **quadblitter** is used instead. # OPTIONS **-d** ***delaymult***: Apply a non-negative rational multiplier to the delayscale. Only applies to multiframe media such as video and animated images. Not supported with **-k**. **-t** ***seconds***: Delay **seconds** after each file. If this option is used, the "press any key to continue" prompt will not be displayed. **seconds** may be any non-negative number. **-l** ***loglevel***: Log between everything (loglevel 8) and nothing (loglevel 0) to stderr. **-s** ***scalemode***: Scaling mode, one of **none**, **hires**, **scale**, **scalehi**, or **stretch**. **-b** ***blitter***: Blitter, one of **ascii**, **half**, **quad**, **sex**, **braille**, or **pixel**. **-m margins**: Define rendering margins (see below). **-L**: Loop frames until a key is pressed. Not supported with **-k**. **-k**: Use direct mode (see **notcurses_direct(3)**). This will have the effect of leaving the output on-screen after program exit, and generating it inline (rather than clearing the screen and placing it at the top). Not supported with **-L** or **-d**. **-q**: Print neither frame/timing information along the top of the screen, nor the output summary on exit. **-a**: Treat ***color*** as if it were transparent. **-n**: Use non-interpolative scaling. The result is usually less pleasing to the eye, but it doesn't introduce new colors. **-V**: Print the program name and version, and exit with success. **-h**: Print help information, and exit with success. files: Select which files to render, and what order to render them in. Default margins are all 0 and default scaling is **stretch**. The full rendering area will thus be used. Using **-m**, margins can be supplied. Provide a single number to set all four margins to the same value, or four comma-delimited values for the top, right, bottom, and left margins respectively. Top, right, and bottom margins are ignored when **-k** is used. Negative margins are illegal. Scaling mode **stretch** resizes the object to match the target rendering area exactly. Unless a blitter is specified with **-b**, **stretch** will use the highest-resolution non-pixel blitter available. **scale** resizes the object so that the longer edge of the rendering area is matched exactly, and the other edge is changed to maintain aspect ratio. **none** uses the original image size. Both **scale** and **none** aim for a 1:1 aspect ratio, and default to **NCBLIT_2x1** at the cost of some potential resolution. The alternatives **scalehi** and **hires** use the highest-resolution non-pixel blitter available. Pixel blitting is never performed unless explicitly requested with **-bpixel**. Blitters can be selected at runtime by pressing '0' through '6'. **NCBLIT_DEFAULT** corresponds to '0'. The various blitters are described in **notcurses_visual(3)**. If a blitter cannot be used in the current environment, the current blitter will be retained. Multiframe media can be paused with space. Press space (or any other valid control) to resume. # NOTES If you're looking for a fast, inline image viewer for the shell, try using **ncplayer -k -t0 -q**. Optimal display requires a terminal advertising the **rgb** terminfo(5) capability, or that the environment variable **COLORTERM** is defined to **24bit** (and that the terminal honors this variable), along with a fixed-width font with good coverage of the Unicode Block Drawing Characters. # BUGS Direct mode is kinda fundamentally suboptimal for multiframe media, and is not yet supported with **-L** nor **-d**. Top, right, and bottom margins are ignored without warning when using direct mode. # SEE ALSO **notcurses(3)**, **notcurses_direct(3)**, **notcurses_visual(3)**, **terminfo(5)**, **unicode(7)**