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, 6 insertions, 2 deletions

diff --git a/media/libstagefright/include/SoftVideoDecoderOMXComponent.h b/media/libstagefright/include/SoftVideoDecoderOMXComponent.h
index 9e97ebd..4529007 100644
--- a/media/libstagefright/include/SoftVideoDecoderOMXComponent.h
+++ b/media/libstagefright/include/SoftVideoDecoderOMXComponent.h
@@ -61,9 +61,10 @@ protected:
     void initPorts(OMX_U32 numInputBuffers,
             OMX_U32 inputBufferSize,
             OMX_U32 numOutputBuffers,
-            const char *mimeType);
+            const char *mimeType,
+            OMX_U32 minCompressionRatio = 1u);
 
-    virtual void updatePortDefinitions(bool updateCrop = true);
+    virtual void updatePortDefinitions(bool updateCrop = true, bool updateInputSize = false);
 
     uint32_t outputBufferWidth();
     uint32_t outputBufferHeight();
@@ -99,6 +100,9 @@ protected:
     } mOutputPortSettingsChange;
 
 private:
+    uint32_t mMinInputBufferSize;
+    uint32_t mMinCompressionRatio;
+
     const char *mComponentRole;
     OMX_VIDEO_CODINGTYPE mCodingType;
     const CodecProfileLevel *mProfileLevels;