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avtest.i
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/*
* avtest.i - test / example file for libav.i
* This file is part of yorick-av, a Yorick plu-ing to write movies
* using LibAV/FFmpeg.
*
* Copyright (c) 2012 Thibaut Paumard
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
if (open("libav.i", "r", 1)) plug_dir, _("./", plug_dir());
require, "libav.i";
func avtest_draw_frame(i)
{
x = span(0, 2*pi, 100);
nframes=200.;
y = sin(x-2.*pi*i/nframes);
plg, y, x;
return i<=nframes;
}
func avtest(fname, params=, vcodec=, pix_fmt=, b=, r=, g=, bf=)
{
if (is_void(fname)) fname = "avtest2.ogg";
winkill;
window;
range, -1, 1;
av_movie, fname, avtest_draw_frame, params=params,
vcodec=vcodec, pix_fmt=pix_fmt,
b=b, r=r, g=g, bf=bf;
winkill;
}