Squashed commit of the following:

commit a2194ecc341fa0c530d0007d8561286c8b8f2d15
Author: Andreas Huber <andih@google.com>
Date:   Fri May 21 12:50:09 2010 -0700

    Instead of including the libvpx libraries prebuilt in our tree, build them from sources.

    Change-Id: I5ec57decf1200cf9137fe13ff77d06f47950c3d7

commit 711098ca3f16800a22ccdb26a07e57e471cca438
Author: Andreas Huber <andih@google.com>
Date:   Thu May 20 15:00:27 2010 -0700

    Support for VPX/VP8 decoding in stagefright

    Change-Id: I16d93faf3f56a5f8ec39c14367704469f914db9e
    related-to-bug: 2483739

Change-Id: Ibc124f6af540c2715cb2325151eecdd6edf085ec

6 files changed, 316 insertions, 0 deletions

diff --git a/media/libstagefright/Android.mk b/media/libstagefright/Android.mk
index 681943f..8d15013 100644
--- a/media/libstagefright/Android.mk
+++ b/media/libstagefright/Android.mk
@@ -77,6 +77,8 @@ LOCAL_STATIC_LIBRARIES := \
         libstagefright_mp3dec \
         libstagefright_vorbisdec \
         libstagefright_matroska \
+        libstagefright_vpxdec \
+        libvpx \
 
 LOCAL_SHARED_LIBRARIES += \
         libstagefright_amrnb_common \
diff --git a/media/libstagefright/OMXCodec.cpp b/media/libstagefright/OMXCodec.cpp
index 928a6c8..66011ca 100644
--- a/media/libstagefright/OMXCodec.cpp
+++ b/media/libstagefright/OMXCodec.cpp
@@ -28,6 +28,7 @@
 #include "include/M4vH263Decoder.h"
 #include "include/MP3Decoder.h"
 #include "include/VorbisDecoder.h"
+#include "include/VPXDecoder.h"
 
 #include "include/ESDS.h"
 
@@ -76,6 +77,7 @@ FACTORY_CREATE(AACDecoder)
 FACTORY_CREATE(AVCDecoder)
 FACTORY_CREATE(M4vH263Decoder)
 FACTORY_CREATE(VorbisDecoder)
+FACTORY_CREATE(VPXDecoder)
 FACTORY_CREATE_ENCODER(AMRNBEncoder)
 FACTORY_CREATE_ENCODER(AMRWBEncoder)
 FACTORY_CREATE_ENCODER(AACEncoder)
@@ -118,6 +120,7 @@ static sp<MediaSource> InstantiateSoftwareCodec(
         FACTORY_REF(AVCDecoder)
         FACTORY_REF(M4vH263Decoder)
         FACTORY_REF(VorbisDecoder)
+        FACTORY_REF(VPXDecoder)
     };
     for (size_t i = 0;
          i < sizeof(kFactoryInfo) / sizeof(kFactoryInfo[0]); ++i) {
@@ -158,6 +161,7 @@ static const CodecInfo kDecoderInfo[] = {
     { MEDIA_MIMETYPE_VIDEO_AVC, "AVCDecoder" },
 //    { MEDIA_MIMETYPE_VIDEO_AVC, "OMX.PV.avcdec" },
     { MEDIA_MIMETYPE_AUDIO_VORBIS, "VorbisDecoder" },
+    { MEDIA_MIMETYPE_VIDEO_VPX, "VPXDecoder" },
 };
 
 static const CodecInfo kEncoderInfo[] = {
diff --git a/media/libstagefright/codecs/on2/Android.mk b/media/libstagefright/codecs/on2/Android.mk
new file mode 100644
index 0000000..2e43120
--- /dev/null
+++ b/media/libstagefright/codecs/on2/Android.mk
@@ -0,0 +1,4 @@
+LOCAL_PATH:= $(call my-dir)
+include $(CLEAR_VARS)
+
+include $(call all-makefiles-under,$(LOCAL_PATH))
diff --git a/media/libstagefright/codecs/on2/dec/Android.mk b/media/libstagefright/codecs/on2/dec/Android.mk
new file mode 100644
index 0000000..03dfb75
--- /dev/null
+++ b/media/libstagefright/codecs/on2/dec/Android.mk
@@ -0,0 +1,16 @@
+LOCAL_PATH := $(call my-dir)
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES := \
+        VPXDecoder.cpp
+
+LOCAL_MODULE := libstagefright_vpxdec
+
+LOCAL_C_INCLUDES := \
+        $(TOP)/frameworks/base/media/libstagefright/include \
+        $(TOP)/external/opencore/extern_libs_v2/khronos/openmax/include \
+        $(TOP)/external/libvpx \
+        $(TOP)/external/libvpx/vpx_codec \
+        $(TOP)/external/libvpx/vpx_ports
+
+include $(BUILD_STATIC_LIBRARY)
diff --git a/media/libstagefright/codecs/on2/dec/VPXDecoder.cpp b/media/libstagefright/codecs/on2/dec/VPXDecoder.cpp
new file mode 100644
index 0000000..bad8956
--- /dev/null
+++ b/media/libstagefright/codecs/on2/dec/VPXDecoder.cpp
@@ -0,0 +1,230 @@
+/*
+ * Copyright (C) 2010 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 "VPXDecoder"
+#include <utils/Log.h>
+
+#include "VPXDecoder.h"
+
+#include <OMX_Component.h>
+
+#include <media/stagefright/MediaBufferGroup.h>
+#include <media/stagefright/MediaDebug.h>
+#include <media/stagefright/MediaDefs.h>
+#include <media/stagefright/MediaErrors.h>
+#include <media/stagefright/MetaData.h>
+#include <media/stagefright/Utils.h>
+
+#include "vpx_codec/vpx_decoder.h"
+#include "vp8/vp8dx.h"
+
+namespace android {
+
+VPXDecoder::VPXDecoder(const sp<MediaSource> &source)
+    : mSource(source),
+      mStarted(false),
+      mBufferSize(0),
+      mCtx(NULL),
+      mBufferGroup(NULL) {
+    sp<MetaData> inputFormat = source->getFormat();
+    const char *mime;
+    CHECK(inputFormat->findCString(kKeyMIMEType, &mime));
+    CHECK(!strcasecmp(mime, MEDIA_MIMETYPE_VIDEO_VPX));
+
+    CHECK(inputFormat->findInt32(kKeyWidth, &mWidth));
+    CHECK(inputFormat->findInt32(kKeyHeight, &mHeight));
+
+    mBufferSize = (mWidth * mHeight * 3) / 2;
+
+    mFormat = new MetaData;
+    mFormat->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_RAW);
+    mFormat->setInt32(kKeyWidth, mWidth);
+    mFormat->setInt32(kKeyHeight, mHeight);
+    mFormat->setInt32(kKeyColorFormat, OMX_COLOR_FormatYUV420Planar);
+    mFormat->setCString(kKeyDecoderComponent, "VPXDecoder");
+
+    int64_t durationUs;
+    if (inputFormat->findInt64(kKeyDuration, &durationUs)) {
+        mFormat->setInt64(kKeyDuration, durationUs);
+    }
+}
+
+VPXDecoder::~VPXDecoder() {
+    if (mStarted) {
+        stop();
+    }
+}
+
+status_t VPXDecoder::start(MetaData *) {
+    if (mStarted) {
+        return UNKNOWN_ERROR;
+    }
+
+    status_t err = mSource->start();
+
+    if (err != OK) {
+        return err;
+    }
+
+    mCtx = new vpx_codec_ctx_t;
+    if (vpx_codec_dec_init(
+                (vpx_codec_ctx_t *)mCtx, &vpx_codec_vp8_dx_algo, NULL, 0)) {
+        LOGE("on2 decoder failed to initialize.");
+
+        mSource->stop();
+
+        return UNKNOWN_ERROR;
+    }
+
+    mBufferGroup = new MediaBufferGroup;
+    mBufferGroup->add_buffer(new MediaBuffer(mBufferSize));
+    mBufferGroup->add_buffer(new MediaBuffer(mBufferSize));
+
+    mStarted = true;
+
+    return OK;
+}
+
+status_t VPXDecoder::stop() {
+    if (!mStarted) {
+        return UNKNOWN_ERROR;
+    }
+
+    delete mBufferGroup;
+    mBufferGroup = NULL;
+
+    vpx_codec_destroy((vpx_codec_ctx_t *)mCtx);
+    delete (vpx_codec_ctx_t *)mCtx;
+    mCtx = NULL;
+
+    mSource->stop();
+
+    mStarted = false;
+
+    return OK;
+}
+
+sp<MetaData> VPXDecoder::getFormat() {
+    return mFormat;
+}
+
+status_t VPXDecoder::read(
+        MediaBuffer **out, const ReadOptions *options) {
+    *out = NULL;
+
+    MediaBuffer *input;
+    status_t err = mSource->read(&input, options);
+
+    if (err != OK) {
+        return err;
+    }
+
+    LOGV("read %d bytes from source\n", input->range_length());
+
+    if (vpx_codec_decode(
+                (vpx_codec_ctx_t *)mCtx,
+                (uint8_t *)input->data() + input->range_offset(),
+                input->range_length(),
+                NULL,
+                0)) {
+        LOGE("on2 decoder failed to decode frame.");
+        input->release();
+        input = NULL;
+
+        return UNKNOWN_ERROR;
+    }
+
+    LOGV("successfully decoded 1 or more frames.");
+
+    int64_t timeUs;
+    CHECK(input->meta_data()->findInt64(kKeyTime, &timeUs));
+
+    input->release();
+    input = NULL;
+
+    vpx_codec_iter_t iter = NULL;
+    vpx_image_t *img = vpx_codec_get_frame((vpx_codec_ctx_t *)mCtx, &iter);
+
+    if (img == NULL) {
+        LOGI("on2 decoder did not return a frame.");
+
+        *out = new MediaBuffer(0);
+        return OK;
+    }
+
+    CHECK_EQ(img->fmt, IMG_FMT_I420);
+
+    int32_t width = img->d_w;
+    int32_t height = img->d_h;
+
+    if (width != mWidth || height != mHeight) {
+        LOGI("Image dimensions changed, width = %d, height = %d",
+             width, height);
+
+        mWidth = width;
+        mHeight = height;
+        mFormat->setInt32(kKeyWidth, width);
+        mFormat->setInt32(kKeyHeight, height);
+
+        mBufferSize = (mWidth * mHeight * 3) / 2;
+        delete mBufferGroup;
+        mBufferGroup = new MediaBufferGroup;
+        mBufferGroup->add_buffer(new MediaBuffer(mBufferSize));
+        mBufferGroup->add_buffer(new MediaBuffer(mBufferSize));
+
+        return INFO_FORMAT_CHANGED;
+    }
+
+    MediaBuffer *output;
+    CHECK_EQ(mBufferGroup->acquire_buffer(&output), OK);
+
+    const uint8_t *srcLine = (const uint8_t *)img->planes[PLANE_Y];
+    uint8_t *dst = (uint8_t *)output->data();
+    for (size_t i = 0; i < img->d_h; ++i) {
+        memcpy(dst, srcLine, img->d_w);
+
+        srcLine += img->stride[PLANE_Y];
+        dst += img->d_w;
+    }
+
+    srcLine = (const uint8_t *)img->planes[PLANE_U];
+    for (size_t i = 0; i < img->d_h / 2; ++i) {
+        memcpy(dst, srcLine, img->d_w / 2);
+
+        srcLine += img->stride[PLANE_U];
+        dst += img->d_w / 2;
+    }
+
+    srcLine = (const uint8_t *)img->planes[PLANE_V];
+    for (size_t i = 0; i < img->d_h / 2; ++i) {
+        memcpy(dst, srcLine, img->d_w / 2);
+
+        srcLine += img->stride[PLANE_V];
+        dst += img->d_w / 2;
+    }
+
+    output->set_range(0, (width * height * 3) / 2);
+
+    output->meta_data()->setInt64(kKeyTime, timeUs);
+
+    *out = output;
+
+    return OK;
+}
+
+}  // namespace android
+
diff --git a/media/libstagefright/include/VPXDecoder.h b/media/libstagefright/include/VPXDecoder.h
new file mode 100644
index 0000000..550c612
--- /dev/null
+++ b/media/libstagefright/include/VPXDecoder.h
@@ -0,0 +1,60 @@
+/*
+ * Copyright (C) 2010 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.
+ */
+
+#ifndef VPX_DECODER_H_
+
+#define VPX_DECODER_H_
+
+#include <media/stagefright/MediaSource.h>
+#include <utils/Vector.h>
+
+namespace android {
+
+struct MediaBufferGroup;
+
+struct VPXDecoder : public MediaSource {
+    VPXDecoder(const sp<MediaSource> &source);
+
+    virtual status_t start(MetaData *params);
+    virtual status_t stop();
+
+    virtual sp<MetaData> getFormat();
+
+    virtual status_t read(
+            MediaBuffer **buffer, const ReadOptions *options);
+
+protected:
+    virtual ~VPXDecoder();
+
+private:
+    sp<MediaSource> mSource;
+    bool mStarted;
+    int32_t mWidth, mHeight;
+    size_t mBufferSize;
+
+    void *mCtx;
+    MediaBufferGroup *mBufferGroup;
+
+    sp<MetaData> mFormat;
+
+    VPXDecoder(const VPXDecoder &);
+    VPXDecoder &operator=(const VPXDecoder &);
+};
+
+}  // namespace android
+
+#endif  // VPX_DECODER_H_
+