stagefright: misc fixes to software video encoders (and decoders)

- move logic to set encoder parameters to common encoder class
  (similarly to what was done for decoders)
- set compressed buffer size based on frame size and compression ratio,
  and codec-specific minimum size
- set raw buffer size based on frame size and metadata mode
- do not set stride and slice height on compressed ports
- advertise only QCIF support for google H263 encoder
- set large-enough input size for video decoders to support adaptive
  playback
- do not change input buffer size on output port reconfiguration, as
  no input buffer reallocation takes place
- do not return empty buffers with EOS after EOS has been signaled

Bug: 18513091
Bug: 18639027
Change-Id: Ib13492ef66adf331aa4572c67d2b283ea020cb41

1 files changed, 7 insertions, 0 deletions

diff --git a/media/libstagefright/tests/Utils_test.cpp b/media/libstagefright/tests/Utils_test.cpp
index 43e0269..5c323c1 100644
--- a/media/libstagefright/tests/Utils_test.cpp
+++ b/media/libstagefright/tests/Utils_test.cpp
@@ -172,6 +172,13 @@ TEST_F(UtilsTest, TestMathTemplates) {
     ASSERT_EQ(divUp(12, 4), 3);
     ASSERT_EQ(divUp(13, 4), 4);
 
+    ASSERT_EQ(align(11, 4), 12);
+    ASSERT_EQ(align(12, 4), 12);
+    ASSERT_EQ(align(13, 4), 16);
+    ASSERT_EQ(align(11, 8), 16);
+    ASSERT_EQ(align(11, 2), 12);
+    ASSERT_EQ(align(11, 1), 11);
+
     ASSERT_EQ(abs(5L), 5L);
     ASSERT_EQ(abs(-25), 25);