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vp9-svc: Allow for 2 stage downscaling for spatial layers.

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For 1 pass cbr mode: allow for two-stage 1:2 scaling
(which will use the 1:2 optimized scaler) if the spatial
layer is 1/4x1/4 of souce.

Without this change, the base layer for 3 spatial layers would
be using the non-normative scaler which is un-optimized/C code.

Change-Id: I9d73f92a4a96927d0f1d6bf75315c1e60513226a
This commit is contained in:
Marco
2016-02-25 08:38:08 -08:00
parent dbaf5f64e2
commit c83bcb3474
5 changed files with 66 additions and 6 deletions
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4
test/datarate_test.cc
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@@ -957,7 +957,7 @@ TEST_P(DatarateOnePassCbrSvc, OnePassCbrSvc3SpatialLayers) {
ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
ASSERT_GE(cfg_.rc_target_bitrate, file_datarate_ * 0.85)
<< " The datarate for the file exceeds the target by too much!";
ASSERT_LE(cfg_.rc_target_bitrate, file_datarate_ * 1.17)
ASSERT_LE(cfg_.rc_target_bitrate, file_datarate_ * 1.22)
<< " The datarate for the file is lower than the target by too much!";
EXPECT_EQ(GetMismatchFrames(), (unsigned int) 0);
}
@@ -1035,7 +1035,7 @@ TEST_P(DatarateOnePassCbrSvc, OnePassCbrSvc3SpatialLayers4threads) {
ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
ASSERT_GE(cfg_.rc_target_bitrate, file_datarate_ * 0.85)
<< " The datarate for the file exceeds the target by too much!";
ASSERT_LE(cfg_.rc_target_bitrate, file_datarate_ * 1.17)
ASSERT_LE(cfg_.rc_target_bitrate, file_datarate_ * 1.22)
<< " The datarate for the file is lower than the target by too much!";
EXPECT_EQ(GetMismatchFrames(), (unsigned int) 0);
}