From 3a2633008be4a92fbca6e76c057f86e220558197 Mon Sep 17 00:00:00 2001
From: James Dong <jdong@google.com>
Date: Fri, 11 May 2012 14:50:16 -0700
Subject: Remove unused VideoSourceDownSampler class

Change-Id: I2faf5962ff4cc366c688ef5bb27f53596f08fe0a
related-to-bug: 6484217
---
 media/libstagefright/Android.mk                 |   1 -
 media/libstagefright/VideoSourceDownSampler.cpp | 142 ------------------------
 2 files changed, 143 deletions(-)
 delete mode 100644 media/libstagefright/VideoSourceDownSampler.cpp

(limited to 'media/libstagefright')

diff --git a/media/libstagefright/Android.mk b/media/libstagefright/Android.mk
index 78a68fd..8ad1cb9 100644
--- a/media/libstagefright/Android.mk
+++ b/media/libstagefright/Android.mk
@@ -14,7 +14,6 @@ LOCAL_SRC_FILES:=                         \
         AwesomePlayer.cpp                 \
         CameraSource.cpp                  \
         CameraSourceTimeLapse.cpp         \
-        VideoSourceDownSampler.cpp        \
         DataSource.cpp                    \
         DRMExtractor.cpp                  \
         ESDS.cpp                          \
diff --git a/media/libstagefright/VideoSourceDownSampler.cpp b/media/libstagefright/VideoSourceDownSampler.cpp
deleted file mode 100644
index 90a42c9..0000000
--- a/media/libstagefright/VideoSourceDownSampler.cpp
+++ /dev/null
@@ -1,142 +0,0 @@
-/*
- * 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 "VideoSourceDownSampler"
-
-#include <media/stagefright/foundation/ADebug.h>
-#include <media/stagefright/VideoSourceDownSampler.h>
-#include <media/stagefright/MediaBuffer.h>
-#include <media/stagefright/MetaData.h>
-#include <media/stagefright/YUVImage.h>
-#include <media/stagefright/YUVCanvas.h>
-#include "OMX_Video.h"
-
-namespace android {
-
-VideoSourceDownSampler::VideoSourceDownSampler(const sp<MediaSource> &videoSource,
-        int32_t width, int32_t height) {
-    ALOGV("Construct VideoSourceDownSampler");
-    CHECK(width > 0);
-    CHECK(height > 0);
-
-    mRealVideoSource = videoSource;
-    mWidth = width;
-    mHeight = height;
-
-    mMeta = new MetaData(*(mRealVideoSource->getFormat()));
-    CHECK(mMeta->findInt32(kKeyWidth, &mRealSourceWidth));
-    CHECK(mMeta->findInt32(kKeyHeight, &mRealSourceHeight));
-
-    if ((mWidth != mRealSourceWidth) || (mHeight != mRealSourceHeight)) {
-        // Change meta data for width and height.
-        CHECK(mWidth <= mRealSourceWidth);
-        CHECK(mHeight <= mRealSourceHeight);
-
-        mNeedDownSampling = true;
-        computeDownSamplingParameters();
-        mMeta->setInt32(kKeyWidth, mWidth);
-        mMeta->setInt32(kKeyHeight, mHeight);
-    } else {
-        mNeedDownSampling = false;
-    }
-}
-
-VideoSourceDownSampler::~VideoSourceDownSampler() {
-}
-
-void VideoSourceDownSampler::computeDownSamplingParameters() {
-    mDownSampleSkipX = mRealSourceWidth / mWidth;
-    mDownSampleSkipY = mRealSourceHeight / mHeight;
-
-    mDownSampleOffsetX = mRealSourceWidth - mDownSampleSkipX * mWidth;
-    mDownSampleOffsetY = mRealSourceHeight - mDownSampleSkipY * mHeight;
-}
-
-void VideoSourceDownSampler::downSampleYUVImage(
-        const MediaBuffer &sourceBuffer, MediaBuffer **buffer) const {
-    // find the YUV format
-    int32_t srcFormat;
-    CHECK(mMeta->findInt32(kKeyColorFormat, &srcFormat));
-    YUVImage::YUVFormat yuvFormat;
-    if (srcFormat == OMX_COLOR_FormatYUV420SemiPlanar) {
-        yuvFormat = YUVImage::YUV420SemiPlanar;
-    } else if (srcFormat == OMX_COLOR_FormatYUV420Planar) {
-        yuvFormat = YUVImage::YUV420Planar;
-    }
-
-    // allocate mediaBuffer for down sampled image and setup a canvas.
-    *buffer = new MediaBuffer(YUVImage::bufferSize(yuvFormat, mWidth, mHeight));
-    YUVImage yuvDownSampledImage(yuvFormat,
-            mWidth, mHeight,
-            (uint8_t *)(*buffer)->data());
-    YUVCanvas yuvCanvasDownSample(yuvDownSampledImage);
-
-    YUVImage yuvImageSource(yuvFormat,
-            mRealSourceWidth, mRealSourceHeight,
-            (uint8_t *)sourceBuffer.data());
-    yuvCanvasDownSample.downsample(mDownSampleOffsetX, mDownSampleOffsetY,
-            mDownSampleSkipX, mDownSampleSkipY,
-            yuvImageSource);
-}
-
-status_t VideoSourceDownSampler::start(MetaData *params) {
-    ALOGV("start");
-    return mRealVideoSource->start();
-}
-
-status_t VideoSourceDownSampler::stop() {
-    ALOGV("stop");
-    return mRealVideoSource->stop();
-}
-
-sp<MetaData> VideoSourceDownSampler::getFormat() {
-    ALOGV("getFormat");
-    return mMeta;
-}
-
-status_t VideoSourceDownSampler::read(
-        MediaBuffer **buffer, const ReadOptions *options) {
-    ALOGV("read");
-    MediaBuffer *realBuffer;
-    status_t err = mRealVideoSource->read(&realBuffer, options);
-
-    if (mNeedDownSampling) {
-        downSampleYUVImage(*realBuffer, buffer);
-
-        int64_t frameTime;
-        realBuffer->meta_data()->findInt64(kKeyTime, &frameTime);
-        (*buffer)->meta_data()->setInt64(kKeyTime, frameTime);
-
-        // We just want this buffer to be deleted when the encoder releases it.
-        // So don't add a reference to it and set the observer to NULL.
-        (*buffer)->setObserver(NULL);
-
-        // The original buffer is no longer required. Release it.
-        realBuffer->release();
-    } else {
-        *buffer = realBuffer;
-    }
-
-    return err;
-}
-
-status_t VideoSourceDownSampler::pause() {
-    ALOGV("pause");
-    return mRealVideoSource->pause();
-}
-
-}  // namespace android
-- 
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