Add a param for setting output usage.

Add a parameter to AOSP for setting the buffer useage of output memory
Once it is set as CPU_READ, force to use system memory, instead of
video memory.

Tracked-On: OAM-111768
Signed-off-by: Shaofeng Tang <shaofeng.tang@intel.com>

Author: Shao-Feng

c2_components/include/mfx_c2_decoder_component.h

@@ -281,6 +281,7 @@ class MfxC2DecoderComponent : public MfxC2Component
     std::shared_ptr<C2StreamColorAspectsTuning::output> m_defaultColorAspects;
     std::shared_ptr<C2StreamColorAspectsInfo::input> m_codedColorAspects;
     std::shared_ptr<C2StreamColorAspectsInfo::output> m_colorAspects;
+    std::shared_ptr<C2StreamUsageTuning::output> m_outputUsage;
     /* ----------------------------------------Setters------------------------------------------- */
     static C2R OutputSurfaceAllocatorSetter(bool mayBlock, C2P<C2PortSurfaceAllocatorTuning::output> &me);
     static C2R SizeSetter(bool mayBlock, const C2P<C2StreamPictureSizeInfo::output> &oldMe,

c2_components/src/mfx_c2_decoder_component.cpp

@@ -57,7 +57,6 @@ enum VP8_LEVEL {
     LEVEL_VP8_Version0 = C2_PROFILE_LEVEL_VENDOR_START,
 };
 
-
 C2R MfxC2DecoderComponent::OutputSurfaceAllocatorSetter(bool mayBlock, C2P<C2PortSurfaceAllocatorTuning::output> &me) {
     (void)mayBlock;
     (void)me;
@@ -222,6 +221,13 @@ MfxC2DecoderComponent::MfxC2DecoderComponent(const C2String name, const CreateCo
         .withConstValue(AllocSharedString<C2PortMediaTypeSetting::output>("video/raw"))
         .build());
 
+    addParameter(
+        DefineParam(m_outputUsage, C2_PARAMKEY_OUTPUT_STREAM_USAGE)
+        .withDefault(new C2StreamUsageTuning::output(0u, C2AndroidMemoryUsage::HW_CODEC_WRITE))
+        .withFields({C2F(m_outputUsage, value).any()})
+        .withSetter(Setter<decltype(*m_outputUsage)>::StrictValueWithNoDeps)
+        .build());
+
     switch(m_decoderType) {
         case DECODER_H264: {
             m_uOutputDelay = /*max_dpb_size*/16 + /*for async depth*/1 + /*for msdk unref in sync part*/1;
@@ -280,7 +286,6 @@ MfxC2DecoderComponent::MfxC2DecoderComponent(const C2String name, const CreateCo
         }
         case DECODER_H265: {
             m_uOutputDelay = /*max_dpb_size*/16 + /*for async depth*/1 + /*for msdk unref in sync part*/1;
-
 	    m_uInputDelay = 15;
 
             addParameter(
@@ -1183,9 +1188,11 @@ mfxStatus MfxC2DecoderComponent::InitDecoder(std::shared_ptr<C2BlockPool> c2_all
             uint64_t usage, igbp_id;
             android::_UnwrapNativeCodec2GrallocMetadata(out_block->handle(), &width, &height, &format, &usage,
                                                         &stride, &generation, &igbp_id, &igbp_slot);
-            if ((!igbp_id && !igbp_slot) || (!igbp_id && igbp_slot == 0xffffffff))
+            MFX_DEBUG_TRACE_PRINTF("m_outputUsage is C2MemoryUsage::CPU_READ? %s", m_outputUsage->value == C2MemoryUsage::CPU_READ? "Y": "N");
+            if((!igbp_id && !igbp_slot) || (!igbp_id && igbp_slot == 0xffffffff) || m_outputUsage->value == C2MemoryUsage::CPU_READ)
             {
                 // No surface & BQ
+                MFX_DEBUG_TRACE_PRINTF("No surface & BQ, Force to use System memory");
                 m_mfxVideoParams.IOPattern = MFX_IOPATTERN_OUT_SYSTEM_MEMORY;
                 m_allocator = nullptr;
             }