Move Codec2-related code from hardware/google/av

Test: None
Bug: 112362730
Change-Id: Ie2f8ff431d65c40333f267ab9877d47089adeea4
diff --git a/media/codec2/components/vpx/C2SoftVpxDec.cpp b/media/codec2/components/vpx/C2SoftVpxDec.cpp
new file mode 100644
index 0000000..01de681
--- /dev/null
+++ b/media/codec2/components/vpx/C2SoftVpxDec.cpp
@@ -0,0 +1,640 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "C2SoftVpxDec"
+#include <log/log.h>
+
+#include <media/stagefright/foundation/AUtils.h>
+#include <media/stagefright/foundation/MediaDefs.h>
+
+#include <C2Debug.h>
+#include <C2PlatformSupport.h>
+#include <SimpleC2Interface.h>
+
+#include "C2SoftVpxDec.h"
+
+namespace android {
+
+#ifdef VP9
+constexpr char COMPONENT_NAME[] = "c2.android.vp9.decoder";
+#else
+constexpr char COMPONENT_NAME[] = "c2.android.vp8.decoder";
+#endif
+
+class C2SoftVpxDec::IntfImpl : public SimpleInterface<void>::BaseParams {
+public:
+    explicit IntfImpl(const std::shared_ptr<C2ReflectorHelper> &helper)
+        : SimpleInterface<void>::BaseParams(
+                helper,
+                COMPONENT_NAME,
+                C2Component::KIND_DECODER,
+                C2Component::DOMAIN_VIDEO,
+#ifdef VP9
+                MEDIA_MIMETYPE_VIDEO_VP9
+#else
+                MEDIA_MIMETYPE_VIDEO_VP8
+#endif
+                ) {
+        noPrivateBuffers(); // TODO: account for our buffers here
+        noInputReferences();
+        noOutputReferences();
+        noInputLatency();
+        noTimeStretch();
+
+        // TODO: output latency and reordering
+
+        addParameter(
+                DefineParam(mAttrib, C2_PARAMKEY_COMPONENT_ATTRIBUTES)
+                .withConstValue(new C2ComponentAttributesSetting(C2Component::ATTRIB_IS_TEMPORAL))
+                .build());
+
+        addParameter(
+                DefineParam(mSize, C2_PARAMKEY_PICTURE_SIZE)
+                .withDefault(new C2StreamPictureSizeInfo::output(0u, 320, 240))
+                .withFields({
+                    C2F(mSize, width).inRange(2, 2048, 2),
+                    C2F(mSize, height).inRange(2, 2048, 2),
+                })
+                .withSetter(SizeSetter)
+                .build());
+
+#ifdef VP9
+        // TODO: Add C2Config::PROFILE_VP9_2HDR ??
+        addParameter(
+                DefineParam(mProfileLevel, C2_PARAMKEY_PROFILE_LEVEL)
+                .withDefault(new C2StreamProfileLevelInfo::input(0u,
+                        C2Config::PROFILE_VP9_0, C2Config::LEVEL_VP9_5))
+                .withFields({
+                    C2F(mProfileLevel, profile).oneOf({
+                            C2Config::PROFILE_VP9_0,
+                            C2Config::PROFILE_VP9_2}),
+                    C2F(mProfileLevel, level).oneOf({
+                            C2Config::LEVEL_VP9_1,
+                            C2Config::LEVEL_VP9_1_1,
+                            C2Config::LEVEL_VP9_2,
+                            C2Config::LEVEL_VP9_2_1,
+                            C2Config::LEVEL_VP9_3,
+                            C2Config::LEVEL_VP9_3_1,
+                            C2Config::LEVEL_VP9_4,
+                            C2Config::LEVEL_VP9_4_1,
+                            C2Config::LEVEL_VP9_5,
+                    })
+                })
+                .withSetter(ProfileLevelSetter, mSize)
+                .build());
+
+#if 0
+        // sample BT.2020 static info
+        mHdrStaticInfo = std::make_shared<C2StreamHdrStaticInfo::output>();
+        mHdrStaticInfo->mastering = {
+            .red   = { .x = 0.708,  .y = 0.292 },
+            .green = { .x = 0.170,  .y = 0.797 },
+            .blue  = { .x = 0.131,  .y = 0.046 },
+            .white = { .x = 0.3127, .y = 0.3290 },
+            .maxLuminance = 1000,
+            .minLuminance = 0.1,
+        };
+        mHdrStaticInfo->maxCll = 1000;
+        mHdrStaticInfo->maxFall = 120;
+
+        mHdrStaticInfo->maxLuminance = 0; // disable static info
+
+        helper->addStructDescriptors<C2MasteringDisplayColorVolumeStruct, C2ColorXyStruct>();
+        addParameter(
+                DefineParam(mHdrStaticInfo, C2_PARAMKEY_HDR_STATIC_INFO)
+                .withDefault(mHdrStaticInfo)
+                .withFields({
+                    C2F(mHdrStaticInfo, mastering.red.x).inRange(0, 1),
+                    // TODO
+                })
+                .withSetter(HdrStaticInfoSetter)
+                .build());
+#endif
+#else
+        addParameter(
+                DefineParam(mProfileLevel, C2_PARAMKEY_PROFILE_LEVEL)
+                .withConstValue(new C2StreamProfileLevelInfo::input(0u,
+                        C2Config::PROFILE_UNUSED, C2Config::LEVEL_UNUSED))
+                .build());
+#endif
+
+        addParameter(
+                DefineParam(mMaxSize, C2_PARAMKEY_MAX_PICTURE_SIZE)
+                .withDefault(new C2StreamMaxPictureSizeTuning::output(0u, 320, 240))
+                .withFields({
+                    C2F(mSize, width).inRange(2, 2048, 2),
+                    C2F(mSize, height).inRange(2, 2048, 2),
+                })
+                .withSetter(MaxPictureSizeSetter, mSize)
+                .build());
+
+        addParameter(
+                DefineParam(mMaxInputSize, C2_PARAMKEY_INPUT_MAX_BUFFER_SIZE)
+                .withDefault(new C2StreamMaxBufferSizeInfo::input(0u, 320 * 240 * 3 / 4))
+                .withFields({
+                    C2F(mMaxInputSize, value).any(),
+                })
+                .calculatedAs(MaxInputSizeSetter, mMaxSize)
+                .build());
+
+        C2ChromaOffsetStruct locations[1] = { C2ChromaOffsetStruct::ITU_YUV_420_0() };
+        std::shared_ptr<C2StreamColorInfo::output> defaultColorInfo =
+            C2StreamColorInfo::output::AllocShared(
+                    1u, 0u, 8u /* bitDepth */, C2Color::YUV_420);
+        memcpy(defaultColorInfo->m.locations, locations, sizeof(locations));
+
+        defaultColorInfo =
+            C2StreamColorInfo::output::AllocShared(
+                    { C2ChromaOffsetStruct::ITU_YUV_420_0() },
+                    0u, 8u /* bitDepth */, C2Color::YUV_420);
+        helper->addStructDescriptors<C2ChromaOffsetStruct>();
+
+        addParameter(
+                DefineParam(mColorInfo, C2_PARAMKEY_CODED_COLOR_INFO)
+                .withConstValue(defaultColorInfo)
+                .build());
+
+        // TODO: support more formats?
+        addParameter(
+                DefineParam(mPixelFormat, C2_PARAMKEY_PIXEL_FORMAT)
+                .withConstValue(new C2StreamPixelFormatInfo::output(
+                                     0u, HAL_PIXEL_FORMAT_YCBCR_420_888))
+                .build());
+    }
+
+    static C2R SizeSetter(bool mayBlock, const C2P<C2StreamPictureSizeInfo::output> &oldMe,
+                          C2P<C2VideoSizeStreamInfo::output> &me) {
+        (void)mayBlock;
+        C2R res = C2R::Ok();
+        if (!me.F(me.v.width).supportsAtAll(me.v.width)) {
+            res = res.plus(C2SettingResultBuilder::BadValue(me.F(me.v.width)));
+            me.set().width = oldMe.v.width;
+        }
+        if (!me.F(me.v.height).supportsAtAll(me.v.height)) {
+            res = res.plus(C2SettingResultBuilder::BadValue(me.F(me.v.height)));
+            me.set().height = oldMe.v.height;
+        }
+        return res;
+    }
+
+    static C2R MaxPictureSizeSetter(bool mayBlock, C2P<C2StreamMaxPictureSizeTuning::output> &me,
+                                    const C2P<C2StreamPictureSizeInfo::output> &size) {
+        (void)mayBlock;
+        // TODO: get max width/height from the size's field helpers vs. hardcoding
+        me.set().width = c2_min(c2_max(me.v.width, size.v.width), 2048u);
+        me.set().height = c2_min(c2_max(me.v.height, size.v.height), 2048u);
+        return C2R::Ok();
+    }
+
+    static C2R MaxInputSizeSetter(bool mayBlock, C2P<C2StreamMaxBufferSizeInfo::input> &me,
+                                  const C2P<C2StreamMaxPictureSizeTuning::output> &maxSize) {
+        (void)mayBlock;
+        // assume compression ratio of 2
+        me.set().value = (((maxSize.v.width + 63) / 64) * ((maxSize.v.height + 63) / 64) * 3072);
+        return C2R::Ok();
+    }
+
+
+    static C2R ProfileLevelSetter(bool mayBlock, C2P<C2StreamProfileLevelInfo::input> &me,
+                                  const C2P<C2StreamPictureSizeInfo::output> &size) {
+        (void)mayBlock;
+        (void)size;
+        (void)me;  // TODO: validate
+        return C2R::Ok();
+    }
+
+private:
+    std::shared_ptr<C2StreamProfileLevelInfo::input> mProfileLevel;
+    std::shared_ptr<C2StreamPictureSizeInfo::output> mSize;
+    std::shared_ptr<C2StreamMaxPictureSizeTuning::output> mMaxSize;
+    std::shared_ptr<C2StreamMaxBufferSizeInfo::input> mMaxInputSize;
+    std::shared_ptr<C2StreamColorInfo::output> mColorInfo;
+    std::shared_ptr<C2StreamPixelFormatInfo::output> mPixelFormat;
+#ifdef VP9
+#if 0
+    std::shared_ptr<C2StreamHdrStaticInfo::output> mHdrStaticInfo;
+#endif
+#endif
+};
+
+C2SoftVpxDec::C2SoftVpxDec(
+        const char *name,
+        c2_node_id_t id,
+        const std::shared_ptr<IntfImpl> &intfImpl)
+    : SimpleC2Component(std::make_shared<SimpleInterface<IntfImpl>>(name, id, intfImpl)),
+      mIntf(intfImpl),
+      mCodecCtx(nullptr) {
+}
+
+C2SoftVpxDec::~C2SoftVpxDec() {
+    onRelease();
+}
+
+c2_status_t C2SoftVpxDec::onInit() {
+    status_t err = initDecoder();
+    return err == OK ? C2_OK : C2_CORRUPTED;
+}
+
+c2_status_t C2SoftVpxDec::onStop() {
+    mSignalledError = false;
+    mSignalledOutputEos = false;
+
+    return C2_OK;
+}
+
+void C2SoftVpxDec::onReset() {
+    (void)onStop();
+    c2_status_t err = onFlush_sm();
+    if (err != C2_OK)
+    {
+        ALOGW("Failed to flush decoder. Try to hard reset decoder");
+        destroyDecoder();
+        (void)initDecoder();
+    }
+}
+
+void C2SoftVpxDec::onRelease() {
+    destroyDecoder();
+}
+
+c2_status_t C2SoftVpxDec::onFlush_sm() {
+    if (mFrameParallelMode) {
+        // Flush decoder by passing nullptr data ptr and 0 size.
+        // Ideally, this should never fail.
+        if (vpx_codec_decode(mCodecCtx, nullptr, 0, nullptr, 0)) {
+            ALOGE("Failed to flush on2 decoder.");
+            return C2_CORRUPTED;
+        }
+    }
+
+    // Drop all the decoded frames in decoder.
+    vpx_codec_iter_t iter = nullptr;
+    while (vpx_codec_get_frame(mCodecCtx, &iter)) {
+    }
+
+    mSignalledError = false;
+    mSignalledOutputEos = false;
+    return C2_OK;
+}
+
+static int GetCPUCoreCount() {
+    int cpuCoreCount = 1;
+#if defined(_SC_NPROCESSORS_ONLN)
+    cpuCoreCount = sysconf(_SC_NPROCESSORS_ONLN);
+#else
+    // _SC_NPROC_ONLN must be defined...
+    cpuCoreCount = sysconf(_SC_NPROC_ONLN);
+#endif
+    CHECK(cpuCoreCount >= 1);
+    ALOGV("Number of CPU cores: %d", cpuCoreCount);
+    return cpuCoreCount;
+}
+
+status_t C2SoftVpxDec::initDecoder() {
+#ifdef VP9
+    mMode = MODE_VP9;
+#else
+    mMode = MODE_VP8;
+#endif
+
+    mWidth = 320;
+    mHeight = 240;
+    mFrameParallelMode = false;
+    mSignalledOutputEos = false;
+    mSignalledError = false;
+
+    if (!mCodecCtx) {
+        mCodecCtx = new vpx_codec_ctx_t;
+    }
+    if (!mCodecCtx) {
+        ALOGE("mCodecCtx is null");
+        return NO_MEMORY;
+    }
+
+    vpx_codec_dec_cfg_t cfg;
+    memset(&cfg, 0, sizeof(vpx_codec_dec_cfg_t));
+    cfg.threads = GetCPUCoreCount();
+
+    vpx_codec_flags_t flags;
+    memset(&flags, 0, sizeof(vpx_codec_flags_t));
+    if (mFrameParallelMode) flags |= VPX_CODEC_USE_FRAME_THREADING;
+
+    vpx_codec_err_t vpx_err;
+    if ((vpx_err = vpx_codec_dec_init(
+                 mCodecCtx, mMode == MODE_VP8 ? &vpx_codec_vp8_dx_algo : &vpx_codec_vp9_dx_algo,
+                 &cfg, flags))) {
+        ALOGE("on2 decoder failed to initialize. (%d)", vpx_err);
+        return UNKNOWN_ERROR;
+    }
+
+    return OK;
+}
+
+status_t C2SoftVpxDec::destroyDecoder() {
+    if  (mCodecCtx) {
+        vpx_codec_destroy(mCodecCtx);
+        delete mCodecCtx;
+        mCodecCtx = nullptr;
+    }
+
+    return OK;
+}
+
+void fillEmptyWork(const std::unique_ptr<C2Work> &work) {
+    uint32_t flags = 0;
+    if (work->input.flags & C2FrameData::FLAG_END_OF_STREAM) {
+        flags |= C2FrameData::FLAG_END_OF_STREAM;
+        ALOGV("signalling eos");
+    }
+    work->worklets.front()->output.flags = (C2FrameData::flags_t)flags;
+    work->worklets.front()->output.buffers.clear();
+    work->worklets.front()->output.ordinal = work->input.ordinal;
+    work->workletsProcessed = 1u;
+}
+
+void C2SoftVpxDec::finishWork(uint64_t index, const std::unique_ptr<C2Work> &work,
+                           const std::shared_ptr<C2GraphicBlock> &block) {
+    std::shared_ptr<C2Buffer> buffer = createGraphicBuffer(block,
+                                                           C2Rect(mWidth, mHeight));
+    auto fillWork = [buffer, index](const std::unique_ptr<C2Work> &work) {
+        uint32_t flags = 0;
+        if ((work->input.flags & C2FrameData::FLAG_END_OF_STREAM) &&
+                (c2_cntr64_t(index) == work->input.ordinal.frameIndex)) {
+            flags |= C2FrameData::FLAG_END_OF_STREAM;
+            ALOGV("signalling eos");
+        }
+        work->worklets.front()->output.flags = (C2FrameData::flags_t)flags;
+        work->worklets.front()->output.buffers.clear();
+        work->worklets.front()->output.buffers.push_back(buffer);
+        work->worklets.front()->output.ordinal = work->input.ordinal;
+        work->workletsProcessed = 1u;
+    };
+    if (work && c2_cntr64_t(index) == work->input.ordinal.frameIndex) {
+        fillWork(work);
+    } else {
+        finish(index, fillWork);
+    }
+}
+
+void C2SoftVpxDec::process(
+        const std::unique_ptr<C2Work> &work,
+        const std::shared_ptr<C2BlockPool> &pool) {
+    // Initialize output work
+    work->result = C2_OK;
+    work->workletsProcessed = 0u;
+    work->worklets.front()->output.configUpdate.clear();
+    work->worklets.front()->output.flags = work->input.flags;
+
+    if (mSignalledError || mSignalledOutputEos) {
+        work->result = C2_BAD_VALUE;
+        return;
+    }
+
+    size_t inOffset = 0u;
+    size_t inSize = 0u;
+    C2ReadView rView = mDummyReadView;
+    if (!work->input.buffers.empty()) {
+        rView = work->input.buffers[0]->data().linearBlocks().front().map().get();
+        inSize = rView.capacity();
+        if (inSize && rView.error()) {
+            ALOGE("read view map failed %d", rView.error());
+            work->result = C2_CORRUPTED;
+            return;
+        }
+    }
+
+    bool codecConfig = ((work->input.flags & C2FrameData::FLAG_CODEC_CONFIG) !=0);
+    bool eos = ((work->input.flags & C2FrameData::FLAG_END_OF_STREAM) != 0);
+
+    ALOGV("in buffer attr. size %zu timestamp %d frameindex %d, flags %x",
+          inSize, (int)work->input.ordinal.timestamp.peeku(),
+          (int)work->input.ordinal.frameIndex.peeku(), work->input.flags);
+
+    // Software VP9 Decoder does not need the Codec Specific Data (CSD)
+    // (specified in http://www.webmproject.org/vp9/profiles/). Ignore it if
+    // it was passed.
+    if (codecConfig) {
+        // Ignore CSD buffer for VP9.
+        if (mMode == MODE_VP9) {
+            fillEmptyWork(work);
+            return;
+        } else {
+            // Tolerate the CSD buffer for VP8. This is a workaround
+            // for b/28689536. continue
+            ALOGW("WARNING: Got CSD buffer for VP8. Continue");
+        }
+    }
+
+    int64_t frameIndex = work->input.ordinal.frameIndex.peekll();
+
+    if (inSize) {
+        uint8_t *bitstream = const_cast<uint8_t *>(rView.data() + inOffset);
+        vpx_codec_err_t err = vpx_codec_decode(
+                mCodecCtx, bitstream, inSize, &frameIndex, 0);
+        if (err != VPX_CODEC_OK) {
+            ALOGE("on2 decoder failed to decode frame. err: %d", err);
+            mSignalledError = true;
+            work->workletsProcessed = 1u;
+            work->result = C2_CORRUPTED;
+            return;
+        }
+    }
+
+    (void)outputBuffer(pool, work);
+
+    if (eos) {
+        drainInternal(DRAIN_COMPONENT_WITH_EOS, pool, work);
+        mSignalledOutputEos = true;
+    } else if (!inSize) {
+        fillEmptyWork(work);
+    }
+}
+
+static void copyOutputBufferToYV12Frame(uint8_t *dst,
+        const uint8_t *srcY, const uint8_t *srcU, const uint8_t *srcV,
+        size_t srcYStride, size_t srcUStride, size_t srcVStride,
+        uint32_t width, uint32_t height, int32_t bpp) {
+    size_t dstYStride = align(width, 16) * bpp ;
+    size_t dstUVStride = align(dstYStride / 2, 16);
+    uint8_t *dstStart = dst;
+
+    for (size_t i = 0; i < height; ++i) {
+         memcpy(dst, srcY, width * bpp);
+         srcY += srcYStride;
+         dst += dstYStride;
+    }
+
+    dst = dstStart + dstYStride * height;
+    for (size_t i = 0; i < height / 2; ++i) {
+         memcpy(dst, srcV, width / 2 * bpp);
+         srcV += srcVStride;
+         dst += dstUVStride;
+    }
+
+    dst = dstStart + (dstYStride * height) + (dstUVStride * height / 2);
+    for (size_t i = 0; i < height / 2; ++i) {
+         memcpy(dst, srcU, width / 2 * bpp);
+         srcU += srcUStride;
+         dst += dstUVStride;
+    }
+}
+
+bool C2SoftVpxDec::outputBuffer(
+        const std::shared_ptr<C2BlockPool> &pool,
+        const std::unique_ptr<C2Work> &work)
+{
+    if (!(work && pool)) return false;
+
+    vpx_codec_iter_t iter = nullptr;
+    vpx_image_t *img = vpx_codec_get_frame(mCodecCtx, &iter);
+
+    if (!img) return false;
+
+    if (img->d_w != mWidth || img->d_h != mHeight) {
+        mWidth = img->d_w;
+        mHeight = img->d_h;
+
+        C2VideoSizeStreamInfo::output size(0u, mWidth, mHeight);
+        std::vector<std::unique_ptr<C2SettingResult>> failures;
+        c2_status_t err = mIntf->config({&size}, C2_MAY_BLOCK, &failures);
+        if (err == C2_OK) {
+            work->worklets.front()->output.configUpdate.push_back(
+                C2Param::Copy(size));
+        } else {
+            ALOGE("Config update size failed");
+            mSignalledError = true;
+            work->workletsProcessed = 1u;
+            work->result = C2_CORRUPTED;
+            return false;
+        }
+
+    }
+    CHECK(img->fmt == VPX_IMG_FMT_I420 || img->fmt == VPX_IMG_FMT_I42016);
+    int32_t bpp = 1;
+    if (img->fmt == VPX_IMG_FMT_I42016) {
+        bpp = 2;
+    }
+
+    std::shared_ptr<C2GraphicBlock> block;
+    uint32_t format = HAL_PIXEL_FORMAT_YV12;
+    C2MemoryUsage usage = { C2MemoryUsage::CPU_READ, C2MemoryUsage::CPU_WRITE };
+    c2_status_t err = pool->fetchGraphicBlock(align(mWidth, 16) * bpp, mHeight, format, usage, &block);
+    if (err != C2_OK) {
+        ALOGE("fetchGraphicBlock for Output failed with status %d", err);
+        work->result = err;
+        return false;
+    }
+
+    C2GraphicView wView = block->map().get();
+    if (wView.error()) {
+        ALOGE("graphic view map failed %d", wView.error());
+        work->result = C2_CORRUPTED;
+        return false;
+    }
+
+    ALOGV("provided (%dx%d) required (%dx%d), out frameindex %d",
+           block->width(), block->height(), mWidth, mHeight, (int)*(int64_t *)img->user_priv);
+
+    uint8_t *dst = const_cast<uint8_t *>(wView.data()[C2PlanarLayout::PLANE_Y]);
+    size_t srcYStride = img->stride[VPX_PLANE_Y];
+    size_t srcUStride = img->stride[VPX_PLANE_U];
+    size_t srcVStride = img->stride[VPX_PLANE_V];
+    const uint8_t *srcY = (const uint8_t *)img->planes[VPX_PLANE_Y];
+    const uint8_t *srcU = (const uint8_t *)img->planes[VPX_PLANE_U];
+    const uint8_t *srcV = (const uint8_t *)img->planes[VPX_PLANE_V];
+    copyOutputBufferToYV12Frame(dst, srcY, srcU, srcV,
+                                srcYStride, srcUStride, srcVStride, mWidth, mHeight, bpp);
+
+    finishWork(*(int64_t *)img->user_priv, work, std::move(block));
+    return true;
+}
+
+c2_status_t C2SoftVpxDec::drainInternal(
+        uint32_t drainMode,
+        const std::shared_ptr<C2BlockPool> &pool,
+        const std::unique_ptr<C2Work> &work) {
+    if (drainMode == NO_DRAIN) {
+        ALOGW("drain with NO_DRAIN: no-op");
+        return C2_OK;
+    }
+    if (drainMode == DRAIN_CHAIN) {
+        ALOGW("DRAIN_CHAIN not supported");
+        return C2_OMITTED;
+    }
+
+    while ((outputBuffer(pool, work))) {
+    }
+
+    if (drainMode == DRAIN_COMPONENT_WITH_EOS &&
+            work && work->workletsProcessed == 0u) {
+        fillEmptyWork(work);
+    }
+
+    return C2_OK;
+}
+c2_status_t C2SoftVpxDec::drain(
+        uint32_t drainMode,
+        const std::shared_ptr<C2BlockPool> &pool) {
+    return drainInternal(drainMode, pool, nullptr);
+}
+
+class C2SoftVpxFactory : public C2ComponentFactory {
+public:
+    C2SoftVpxFactory() : mHelper(std::static_pointer_cast<C2ReflectorHelper>(
+        GetCodec2PlatformComponentStore()->getParamReflector())) {
+    }
+
+    virtual c2_status_t createComponent(
+            c2_node_id_t id,
+            std::shared_ptr<C2Component>* const component,
+            std::function<void(C2Component*)> deleter) override {
+        *component = std::shared_ptr<C2Component>(
+            new C2SoftVpxDec(COMPONENT_NAME, id,
+                          std::make_shared<C2SoftVpxDec::IntfImpl>(mHelper)),
+            deleter);
+        return C2_OK;
+    }
+
+    virtual c2_status_t createInterface(
+            c2_node_id_t id,
+            std::shared_ptr<C2ComponentInterface>* const interface,
+            std::function<void(C2ComponentInterface*)> deleter) override {
+        *interface = std::shared_ptr<C2ComponentInterface>(
+            new SimpleInterface<C2SoftVpxDec::IntfImpl>(
+                COMPONENT_NAME, id,
+                std::make_shared<C2SoftVpxDec::IntfImpl>(mHelper)),
+            deleter);
+        return C2_OK;
+    }
+
+    virtual ~C2SoftVpxFactory() override = default;
+
+private:
+    std::shared_ptr<C2ReflectorHelper> mHelper;
+};
+
+}  // namespace android
+
+extern "C" ::C2ComponentFactory* CreateCodec2Factory() {
+    ALOGV("in %s", __func__);
+    return new ::android::C2SoftVpxFactory();
+}
+
+extern "C" void DestroyCodec2Factory(::C2ComponentFactory* factory) {
+    ALOGV("in %s", __func__);
+    delete factory;
+}