97 lines
3.3 KiB
Ruby
97 lines
3.3 KiB
Ruby
class Libltc < Formula
|
|
desc "POSIX-C Library for handling Linear/Logitudinal Time Code (LTC)"
|
|
homepage "https://x42.github.io/libltc/"
|
|
url "https://github.com/x42/libltc/releases/download/v1.3.2/libltc-1.3.2.tar.gz"
|
|
sha256 "0a6d42cd6c21e925a27fa560dc45ac80057d275f23342102825909c02d3b1249"
|
|
license "LGPL-3.0"
|
|
|
|
bottle do
|
|
sha256 cellar: :any, arm64_ventura: "317e8d1f146e9c5118dabea794de694186057e4c71688523946fb24859ed4de7"
|
|
sha256 cellar: :any, arm64_monterey: "8289e0f5389ee652949981fbde5d3955d78048707c2731619e2d9d046cf1f89a"
|
|
sha256 cellar: :any, arm64_big_sur: "d003af07740326535cc95332c180cc467b29eaab2d227438e1486c8891bd5560"
|
|
sha256 cellar: :any, monterey: "9a4cdb442f640d04e8886b888bbc5427b448cc9d7a160672a505fda5fa1371c8"
|
|
sha256 cellar: :any, big_sur: "a8a22a13e7faa84038e3833a7ad379d5ca3afe26670476fad9f87afc5312338a"
|
|
sha256 cellar: :any, catalina: "2489b05efb1e77a52635ff5cded3850b9c1abe861b01145bccba7a2f6edaafaa"
|
|
sha256 cellar: :any_skip_relocation, x86_64_linux: "c160950aa4d33232070cb6607deec9ed4fc9b070dd5dcf0c3221404199016c46"
|
|
end
|
|
|
|
def install
|
|
system "./configure", "--prefix=#{prefix}"
|
|
system "make", "install"
|
|
end
|
|
|
|
test do
|
|
(testpath/"test.c").write <<~EOS
|
|
// stripped-down copy of:
|
|
// https://raw.githubusercontent.com/x42/libltc/87d45b3/tests/example_encode.c
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <ltc.h>
|
|
|
|
int main(int argc, char **argv) {
|
|
FILE* file;
|
|
double length = 2;
|
|
double fps = 25;
|
|
double sample_rate = 48000;
|
|
char *filename = "#{testpath}/foobar";
|
|
int vframe_cnt;
|
|
int vframe_last;
|
|
int total = 0;
|
|
ltcsnd_sample_t *buf;
|
|
LTCEncoder *encoder;
|
|
SMPTETimecode st;
|
|
|
|
const char timezone[6] = "+0100";
|
|
strcpy(st.timezone, timezone);
|
|
st.years = 8;
|
|
st.months = 12;
|
|
st.days = 31;
|
|
st.hours = 23;
|
|
st.mins = 59;
|
|
st.secs = 59;
|
|
st.frame = 0;
|
|
|
|
file = fopen(filename, "wb");
|
|
if (!file) {
|
|
fprintf(stderr, "Error: can not open file '%s' for writing.\\n", filename);
|
|
return 1;
|
|
}
|
|
|
|
encoder = ltc_encoder_create(sample_rate, fps,
|
|
fps==25?LTC_TV_625_50:LTC_TV_525_60, LTC_USE_DATE);
|
|
ltc_encoder_set_timecode(encoder, &st);
|
|
|
|
vframe_cnt = 0;
|
|
vframe_last = length * fps;
|
|
|
|
while (vframe_cnt++ < vframe_last) {
|
|
int byte_cnt;
|
|
for (byte_cnt = 0 ; byte_cnt < 10 ; byte_cnt++) {
|
|
ltc_encoder_encode_byte(encoder, byte_cnt, 1.0);
|
|
|
|
int len;
|
|
buf = ltc_encoder_get_bufptr(encoder, &len, 1);
|
|
|
|
if (len > 0) {
|
|
fwrite(buf, sizeof(ltcsnd_sample_t), len, file);
|
|
total+=len;
|
|
}
|
|
}
|
|
|
|
ltc_encoder_inc_timecode(encoder);
|
|
}
|
|
fclose(file);
|
|
ltc_encoder_free(encoder);
|
|
|
|
printf("Done: wrote %d samples to '%s'\\n", total, filename);
|
|
|
|
return 0;
|
|
}
|
|
EOS
|
|
system ENV.cc, "test.c", "-L#{lib}", "-lltc", "-lm", "-o", "test"
|
|
system "./test"
|
|
assert (testpath/"foobar").file?
|
|
end
|
|
end
|