ppm2raw1

Usage

Overview

ppm2raw converts a PPM to a Raw DV stream.

Options

-n

NTSC output required.

-a

Maintain aspect ratio when scaling images.

-s

Scale images to the full frame size, regardless of aspect ratio

-w

Wide screen output (default: off).

-p number

Number of encoder passes (default is 3).

-q qno

Encoder qno.

-b colour

Use the colour triple for backgrounds - default is 000000. Format must be a hex string representing red, green, blue. For example, ffffff would be white.

-A wav

Use the wav to dub the output. The wav file must contain stereo, 16 bit samples at a frequency of 32khz, 44.1khz or 48khz.

-2

Two pass encoding (default: off).

Options

--help

Show help message.

Examples

ppm2raw needs a PPM input provided on stdin. Fortunately, many tools generate PPM on stdout.

For example, to re-encode any ffmpeg compatible file or stream format to a PAL Raw DV stream which rescales the images according to the aspect ratio of the input using the following command:

ffmpeg -i 'some-file' -f ppmpipe - |
ppm2raw -a > file.dv

For NTSC, you would add -n to the ppm2raw command.