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200b05246c
The "making of" video in the Xbox version of Myst III is unusually long. VideoDecoder::FixedRateVideoTrack::getFrameTime would trigger an overflow.
255 lines
7.6 KiB
C++
255 lines
7.6 KiB
C++
#include <cxxtest/TestSuite.h>
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#include "audio/timestamp.h"
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#include <limits.h>
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class TimestampTestSuite : public CxxTest::TestSuite
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{
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public:
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void test_diff_add_frames() {
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const Audio::Timestamp a(10000, 1000);
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const Audio::Timestamp b(10001, 1000);
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const Audio::Timestamp c(10002, 1000);
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TS_ASSERT_EQUALS(a.frameDiff(b), -1);
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TS_ASSERT_EQUALS(b.frameDiff(a), 1);
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TS_ASSERT_EQUALS(c.frameDiff(a), 2);
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TS_ASSERT_EQUALS(b.addFrames(2000).frameDiff(a), 2001);
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TS_ASSERT_EQUALS(a.frameDiff(b), -1);
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TS_ASSERT_EQUALS(b.frameDiff(a), 1);
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TS_ASSERT_EQUALS(c.frameDiff(a), 2);
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TS_ASSERT_EQUALS(b.addFrames(2000).frameDiff(a.addFrames(-1000)), 3001);
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TS_ASSERT_EQUALS(a.frameDiff(b), -1);
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TS_ASSERT_EQUALS(b.frameDiff(a), 1);
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TS_ASSERT_EQUALS(c.frameDiff(a), 2);
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}
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void test_diff_add_msecs() {
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Audio::Timestamp ts0(3, 22050);
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Audio::Timestamp ts1(0, 22050);
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Audio::Timestamp ts2(0, 22050);
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TS_ASSERT_EQUALS(ts0.msecs(), 3);
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TS_ASSERT_EQUALS(ts0.totalNumberOfFrames(), 3 * 22050 / 1000);
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TS_ASSERT_EQUALS(ts0.numberOfFrames(), 3 * 22050 / 1000);
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ts1 = ts1.addFrames(53248);
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TS_ASSERT_EQUALS(ts1.secs(), 2);
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TS_ASSERT_EQUALS(ts1.msecs(), 53248 * 1000 / 22050);
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TS_ASSERT_EQUALS(ts1.totalNumberOfFrames(), 53248);
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TS_ASSERT_EQUALS(ts1.numberOfFrames(), 53248 - 2 * 22050);
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ts1 = ts1.addMsecs(47);
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TS_ASSERT_EQUALS(ts1.secs(), 2);
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TS_ASSERT_EQUALS(ts1.msecs(), 2414+47);
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TS_ASSERT_EQUALS(ts1.totalNumberOfFrames(), 47*22050 / 1000 + 53248);
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TS_ASSERT_EQUALS(ts1.numberOfFrames(), 47*22050 / 1000 + 53248 - 2 * 22050);
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ts2 = ts2.addMsecs(47);
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TS_ASSERT_EQUALS(ts2.secs(), 0);
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TS_ASSERT_EQUALS(ts2.msecs(), 47);
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TS_ASSERT_EQUALS(ts2.totalNumberOfFrames(), 47*22050 / 1000);
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TS_ASSERT_EQUALS(ts2.numberOfFrames(), 47*22050 / 1000);
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ts2 = ts2.addFrames(53248);
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TS_ASSERT_EQUALS(ts2.secs(), 2);
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TS_ASSERT_EQUALS(ts2.msecs(), 2414+47);
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TS_ASSERT_EQUALS(ts2.totalNumberOfFrames(), 47*22050 / 1000 + 53248);
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TS_ASSERT_EQUALS(ts2.numberOfFrames(), 47*22050 / 1000 + 53248 - 2 * 22050);
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}
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void test_ticks() {
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const Audio::Timestamp a(1234, 60);
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const Audio::Timestamp b(5678, 60);
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TS_ASSERT_EQUALS(a.msecs(), 1234);
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TS_ASSERT_EQUALS(b.msecs(), 5678);
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TS_ASSERT_EQUALS(a.secs(), 1);
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TS_ASSERT_EQUALS(b.secs(), 5);
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TS_ASSERT_EQUALS(a.msecsDiff(b), 1234 - 5678);
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TS_ASSERT_EQUALS(b.msecsDiff(a), 5678 - 1234);
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TS_ASSERT_EQUALS(a.frameDiff(b), (1234 - 5678) * 60 / 1000);
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TS_ASSERT_EQUALS(b.frameDiff(a), (5678 - 1234) * 60 / 1000);
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TS_ASSERT_EQUALS(a.addFrames(1).msecs(), (1234 + 1000 * 1/60));
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TS_ASSERT_EQUALS(a.addFrames(59).msecs(), (1234 + 1000 * 59/60));
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TS_ASSERT_EQUALS(a.addFrames(60).msecs(), (1234 + 1000 * 60/60));
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// As soon as we go back even by only one frame, the msec value
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// has to drop by at least one.
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TS_ASSERT_EQUALS(a.addFrames(-1).msecs(), (1234 - 1000 * 1/60 - 1));
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TS_ASSERT_EQUALS(a.addFrames(-59).msecs(), (1234 - 1000 * 59/60 - 1));
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TS_ASSERT_EQUALS(a.addFrames(-60).msecs(), (1234 - 1000 * 60/60));
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}
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void test_more_add_diff() {
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const Audio::Timestamp c(10002, 1000);
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for (int i = -10000; i < 10000; i++) {
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int v = c.addFrames(i).frameDiff(c);
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TS_ASSERT_EQUALS(v, i);
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}
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}
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void test_negate() {
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const Audio::Timestamp a = Audio::Timestamp(0, 60).addFrames(13);
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const Audio::Timestamp b = -a;
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TS_ASSERT_EQUALS(a.msecs() + 1, -b.msecs());
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TS_ASSERT_EQUALS(a.totalNumberOfFrames(), -b.totalNumberOfFrames());
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TS_ASSERT_EQUALS(a.numberOfFrames(), 60 - b.numberOfFrames());
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}
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void test_add_sub() {
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const Audio::Timestamp a = Audio::Timestamp(0, 60).addFrames(13);
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const Audio::Timestamp b = -a;
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const Audio::Timestamp c = Audio::Timestamp(0, 60).addFrames(20);
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TS_ASSERT_EQUALS((a+a).secs(), 0);
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TS_ASSERT_EQUALS((a+a).numberOfFrames(), 2*13);
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TS_ASSERT_EQUALS((a+b).secs(), 0);
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TS_ASSERT_EQUALS((a+b).numberOfFrames(), 0);
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TS_ASSERT_EQUALS((a+c).secs(), 0);
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TS_ASSERT_EQUALS((a+c).numberOfFrames(), 13+20);
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TS_ASSERT_EQUALS((a-a).secs(), 0);
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TS_ASSERT_EQUALS((a-a).numberOfFrames(), 0);
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TS_ASSERT_EQUALS((a-b).secs(), 0);
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TS_ASSERT_EQUALS((a-b).numberOfFrames(), 2*13);
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TS_ASSERT_EQUALS((a-c).secs(), -1);
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TS_ASSERT_EQUALS((a-c).numberOfFrames(), 60 + (13 - 20));
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}
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void test_diff_with_conversion() {
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const Audio::Timestamp a = Audio::Timestamp(10, 1000).addFrames(20);
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const Audio::Timestamp b = Audio::Timestamp(10, 1000/5).addFrames(20/5);
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const Audio::Timestamp c = Audio::Timestamp(10, 1000*2).addFrames(20*2);
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TS_ASSERT_EQUALS(a.frameDiff(a), 0);
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TS_ASSERT_EQUALS(a.frameDiff(b), 0);
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TS_ASSERT_EQUALS(a.frameDiff(c), 0);
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TS_ASSERT_EQUALS(b.frameDiff(a), 0);
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TS_ASSERT_EQUALS(b.frameDiff(b), 0);
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TS_ASSERT_EQUALS(b.frameDiff(c), 0);
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TS_ASSERT_EQUALS(c.frameDiff(a), 0);
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TS_ASSERT_EQUALS(c.frameDiff(b), 0);
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TS_ASSERT_EQUALS(c.frameDiff(c), 0);
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}
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void test_convert() {
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const Audio::Timestamp a = Audio::Timestamp(10, 1000).addFrames(20);
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const Audio::Timestamp b = Audio::Timestamp(10, 1000/5).addFrames(20/5);
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const Audio::Timestamp c = Audio::Timestamp(10, 1000*2).addFrames(20*2);
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TS_ASSERT_EQUALS(a.convertToFramerate(1000/5), b);
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TS_ASSERT_EQUALS(a.convertToFramerate(1000*2), c);
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}
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void test_equals() {
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const Audio::Timestamp a = Audio::Timestamp(500, 1000);
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Audio::Timestamp b = Audio::Timestamp(0, 1000);
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Audio::Timestamp c = Audio::Timestamp(0, 100);
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TS_ASSERT_EQUALS(a, Audio::Timestamp(0, 500, 1000));
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TS_ASSERT(a != b);
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TS_ASSERT(a != c);
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TS_ASSERT(b == c);
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b = b.addFrames(500);
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c = c.addFrames(50);
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TS_ASSERT(a == b);
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TS_ASSERT(a == c);
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TS_ASSERT(b == c);
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}
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void test_compare() {
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const Audio::Timestamp a = Audio::Timestamp(60, 1000);
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Audio::Timestamp b = Audio::Timestamp(60, 60);
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Audio::Timestamp c = Audio::Timestamp(60, 44100);
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TS_ASSERT(a <= b);
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TS_ASSERT(b <= c);
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TS_ASSERT(a <= c);
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TS_ASSERT(b >= a);
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TS_ASSERT(c >= b);
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TS_ASSERT(c >= a);
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b = b.addFrames(60 / 12);
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c = c.addFrames(44100 / 10);
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TS_ASSERT(a < b);
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TS_ASSERT(b < c);
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TS_ASSERT(a < c);
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TS_ASSERT(b > a);
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TS_ASSERT(c > b);
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TS_ASSERT(c > a);
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TS_ASSERT(a <= b);
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TS_ASSERT(b <= c);
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TS_ASSERT(a <= c);
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TS_ASSERT(b >= a);
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TS_ASSERT(c >= b);
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TS_ASSERT(c >= a);
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}
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void test_framerate() {
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const Audio::Timestamp a = Audio::Timestamp(500, 1000);
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const Audio::Timestamp b = Audio::Timestamp(500, 67);
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const Audio::Timestamp c = Audio::Timestamp(500, 100);
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const Audio::Timestamp d = Audio::Timestamp(500, 44100);
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TS_ASSERT_EQUALS(a.framerate(), (uint)1000);
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TS_ASSERT_EQUALS(b.framerate(), (uint)67);
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TS_ASSERT_EQUALS(c.framerate(), (uint)100);
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TS_ASSERT_EQUALS(d.framerate(), (uint)44100);
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}
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void test_direct_query() {
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const Audio::Timestamp a = Audio::Timestamp(0, 22050);
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const Audio::Timestamp b = a.addFrames(11025);
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const Audio::Timestamp c = Audio::Timestamp(1500, 22050);
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TS_ASSERT_EQUALS(a.secs(), 0);
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TS_ASSERT_EQUALS(a.msecs(), 0);
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TS_ASSERT_EQUALS(a.numberOfFrames(), 0);
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TS_ASSERT_EQUALS(a.totalNumberOfFrames(), 0);
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TS_ASSERT_EQUALS(b.secs(), 0);
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TS_ASSERT_EQUALS(b.msecs(), 500);
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TS_ASSERT_EQUALS(b.numberOfFrames(), 11025);
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TS_ASSERT_EQUALS(b.totalNumberOfFrames(), 11025);
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TS_ASSERT_EQUALS(c.secs(), 1);
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TS_ASSERT_EQUALS(c.msecs(), 1500);
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TS_ASSERT_EQUALS(c.numberOfFrames(), 11025);
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TS_ASSERT_EQUALS(c.totalNumberOfFrames(), 33075);
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}
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void test_no_overflow() {
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// The constructor should not overflow and give incoherent values
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const Audio::Timestamp a = Audio::Timestamp(0, UINT_MAX, 1000);
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int secs = UINT_MAX / 1000;
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int frames = UINT_MAX % 1000;
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TS_ASSERT_EQUALS(a.secs(), secs);
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TS_ASSERT_EQUALS(a.numberOfFrames(), frames);
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}
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};
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