Adding iSAC-fb support
Adding tests, too.
Review URL: https://webrtc-codereview.appspot.com/1070011
git-svn-id: http://webrtc.googlecode.com/svn/trunk@3440 4adac7df-926f-26a2-2b94-8c16560cd09d
diff --git a/webrtc/modules/audio_coding/neteq4/timestamp_scaler_unittest.cc b/webrtc/modules/audio_coding/neteq4/timestamp_scaler_unittest.cc
index ecbed98..c676094 100644
--- a/webrtc/modules/audio_coding/neteq4/timestamp_scaler_unittest.cc
+++ b/webrtc/modules/audio_coding/neteq4/timestamp_scaler_unittest.cc
@@ -252,6 +252,62 @@
EXPECT_CALL(db, Die()); // Called when database object is deleted.
}
+TEST(TimestampScaler, TestOpusLargeStep) {
+ MockDecoderDatabase db;
+ DecoderDatabase::DecoderInfo info;
+ info.codec_type = kDecoderOpus; // Uses a factor 2/3 scaling.
+ static const uint8_t kRtpPayloadType = 17;
+ EXPECT_CALL(db, GetDecoderInfo(kRtpPayloadType))
+ .WillRepeatedly(Return(&info));
+
+ TimestampScaler scaler(db);
+ // Test both sides of the timestamp wrap-around.
+ static const uint32_t kStep = 960;
+ uint32_t external_timestamp = 0;
+ // |external_timestamp| will be a large positive value.
+ external_timestamp = external_timestamp - 5 * kStep;
+ uint32_t internal_timestamp = external_timestamp;
+ for (; external_timestamp != 5 * kStep; external_timestamp += kStep) {
+ // Scale to internal timestamp.
+ EXPECT_EQ(internal_timestamp,
+ scaler.ToInternal(external_timestamp, kRtpPayloadType));
+ // Scale back.
+ EXPECT_EQ(external_timestamp, scaler.ToExternal(internal_timestamp));
+ // Internal timestamp should be incremented with twice the step.
+ internal_timestamp += 2 * kStep / 3;
+ }
+
+ EXPECT_CALL(db, Die()); // Called when database object is deleted.
+}
+
+TEST(TimestampScaler, TestIsacFbLargeStep) {
+ MockDecoderDatabase db;
+ DecoderDatabase::DecoderInfo info;
+ info.codec_type = kDecoderISACfb; // Uses a factor 2/3 scaling.
+ static const uint8_t kRtpPayloadType = 17;
+ EXPECT_CALL(db, GetDecoderInfo(kRtpPayloadType))
+ .WillRepeatedly(Return(&info));
+
+ TimestampScaler scaler(db);
+ // Test both sides of the timestamp wrap-around.
+ static const uint32_t kStep = 960;
+ uint32_t external_timestamp = 0;
+ // |external_timestamp| will be a large positive value.
+ external_timestamp = external_timestamp - 5 * kStep;
+ uint32_t internal_timestamp = external_timestamp;
+ for (; external_timestamp != 5 * kStep; external_timestamp += kStep) {
+ // Scale to internal timestamp.
+ EXPECT_EQ(internal_timestamp,
+ scaler.ToInternal(external_timestamp, kRtpPayloadType));
+ // Scale back.
+ EXPECT_EQ(external_timestamp, scaler.ToExternal(internal_timestamp));
+ // Internal timestamp should be incremented with twice the step.
+ internal_timestamp += 2 * kStep / 3;
+ }
+
+ EXPECT_CALL(db, Die()); // Called when database object is deleted.
+}
+
TEST(TimestampScaler, Failures) {
static const uint8_t kRtpPayloadType = 17;
MockDecoderDatabase db;
