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Diffstat (limited to 'media/libstagefright/colorconversion/ColorConverter.cpp')
-rw-r--r--media/libstagefright/colorconversion/ColorConverter.cpp524
1 files changed, 0 insertions, 524 deletions
diff --git a/media/libstagefright/colorconversion/ColorConverter.cpp b/media/libstagefright/colorconversion/ColorConverter.cpp
deleted file mode 100644
index 597167f..0000000
--- a/media/libstagefright/colorconversion/ColorConverter.cpp
+++ /dev/null
@@ -1,524 +0,0 @@
-/*
- * Copyright (C) 2009 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 "ColorConverter"
-#include <utils/Log.h>
-
-#include <media/stagefright/foundation/ADebug.h>
-#include <media/stagefright/ColorConverter.h>
-#include <media/stagefright/MediaErrors.h>
-
-namespace android {
-
-ColorConverter::ColorConverter(
- OMX_COLOR_FORMATTYPE from, OMX_COLOR_FORMATTYPE to)
- : mSrcFormat(from),
- mDstFormat(to),
- mClip(NULL) {
-}
-
-ColorConverter::~ColorConverter() {
- delete[] mClip;
- mClip = NULL;
-}
-
-bool ColorConverter::isValid() const {
- if (mDstFormat != OMX_COLOR_Format16bitRGB565) {
- return false;
- }
-
- switch (mSrcFormat) {
- case OMX_COLOR_FormatYUV420Planar:
- case OMX_COLOR_FormatCbYCrY:
- case OMX_QCOM_COLOR_FormatYVU420SemiPlanar:
- case OMX_COLOR_FormatYUV420SemiPlanar:
- case OMX_TI_COLOR_FormatYUV420PackedSemiPlanar:
- return true;
-
- default:
- return false;
- }
-}
-
-ColorConverter::BitmapParams::BitmapParams(
- void *bits,
- size_t width, size_t height,
- size_t cropLeft, size_t cropTop,
- size_t cropRight, size_t cropBottom)
- : mBits(bits),
- mWidth(width),
- mHeight(height),
- mCropLeft(cropLeft),
- mCropTop(cropTop),
- mCropRight(cropRight),
- mCropBottom(cropBottom) {
-}
-
-size_t ColorConverter::BitmapParams::cropWidth() const {
- return mCropRight - mCropLeft + 1;
-}
-
-size_t ColorConverter::BitmapParams::cropHeight() const {
- return mCropBottom - mCropTop + 1;
-}
-
-status_t ColorConverter::convert(
- const void *srcBits,
- size_t srcWidth, size_t srcHeight,
- size_t srcCropLeft, size_t srcCropTop,
- size_t srcCropRight, size_t srcCropBottom,
- void *dstBits,
- size_t dstWidth, size_t dstHeight,
- size_t dstCropLeft, size_t dstCropTop,
- size_t dstCropRight, size_t dstCropBottom) {
- if (mDstFormat != OMX_COLOR_Format16bitRGB565) {
- return ERROR_UNSUPPORTED;
- }
-
- BitmapParams src(
- const_cast<void *>(srcBits),
- srcWidth, srcHeight,
- srcCropLeft, srcCropTop, srcCropRight, srcCropBottom);
-
- BitmapParams dst(
- dstBits,
- dstWidth, dstHeight,
- dstCropLeft, dstCropTop, dstCropRight, dstCropBottom);
-
- status_t err;
-
- switch (mSrcFormat) {
- case OMX_COLOR_FormatYUV420Planar:
- err = convertYUV420Planar(src, dst);
- break;
-
- case OMX_COLOR_FormatCbYCrY:
- err = convertCbYCrY(src, dst);
- break;
-
- case OMX_QCOM_COLOR_FormatYVU420SemiPlanar:
- err = convertQCOMYUV420SemiPlanar(src, dst);
- break;
-
- case OMX_COLOR_FormatYUV420SemiPlanar:
- err = convertYUV420SemiPlanar(src, dst);
- break;
-
- case OMX_TI_COLOR_FormatYUV420PackedSemiPlanar:
- err = convertTIYUV420PackedSemiPlanar(src, dst);
- break;
-
- default:
- {
- CHECK(!"Should not be here. Unknown color conversion.");
- break;
- }
- }
-
- return err;
-}
-
-status_t ColorConverter::convertCbYCrY(
- const BitmapParams &src, const BitmapParams &dst) {
- // XXX Untested
-
- uint8_t *kAdjustedClip = initClip();
-
- if (!((src.mCropLeft & 1) == 0
- && src.cropWidth() == dst.cropWidth()
- && src.cropHeight() == dst.cropHeight())) {
- return ERROR_UNSUPPORTED;
- }
-
- uint16_t *dst_ptr = (uint16_t *)dst.mBits
- + dst.mCropTop * dst.mWidth + dst.mCropLeft;
-
- const uint8_t *src_ptr = (const uint8_t *)src.mBits
- + (src.mCropTop * dst.mWidth + src.mCropLeft) * 2;
-
- for (size_t y = 0; y < src.cropHeight(); ++y) {
- for (size_t x = 0; x < src.cropWidth(); x += 2) {
- signed y1 = (signed)src_ptr[2 * x + 1] - 16;
- signed y2 = (signed)src_ptr[2 * x + 3] - 16;
- signed u = (signed)src_ptr[2 * x] - 128;
- signed v = (signed)src_ptr[2 * x + 2] - 128;
-
- signed u_b = u * 517;
- signed u_g = -u * 100;
- signed v_g = -v * 208;
- signed v_r = v * 409;
-
- signed tmp1 = y1 * 298;
- signed b1 = (tmp1 + u_b) / 256;
- signed g1 = (tmp1 + v_g + u_g) / 256;
- signed r1 = (tmp1 + v_r) / 256;
-
- signed tmp2 = y2 * 298;
- signed b2 = (tmp2 + u_b) / 256;
- signed g2 = (tmp2 + v_g + u_g) / 256;
- signed r2 = (tmp2 + v_r) / 256;
-
- uint32_t rgb1 =
- ((kAdjustedClip[r1] >> 3) << 11)
- | ((kAdjustedClip[g1] >> 2) << 5)
- | (kAdjustedClip[b1] >> 3);
-
- uint32_t rgb2 =
- ((kAdjustedClip[r2] >> 3) << 11)
- | ((kAdjustedClip[g2] >> 2) << 5)
- | (kAdjustedClip[b2] >> 3);
-
- if (x + 1 < src.cropWidth()) {
- *(uint32_t *)(&dst_ptr[x]) = (rgb2 << 16) | rgb1;
- } else {
- dst_ptr[x] = rgb1;
- }
- }
-
- src_ptr += src.mWidth * 2;
- dst_ptr += dst.mWidth;
- }
-
- return OK;
-}
-
-status_t ColorConverter::convertYUV420Planar(
- const BitmapParams &src, const BitmapParams &dst) {
- if (!((src.mCropLeft & 1) == 0
- && src.cropWidth() == dst.cropWidth()
- && src.cropHeight() == dst.cropHeight())) {
- return ERROR_UNSUPPORTED;
- }
-
- uint8_t *kAdjustedClip = initClip();
-
- uint16_t *dst_ptr = (uint16_t *)dst.mBits
- + dst.mCropTop * dst.mWidth + dst.mCropLeft;
-
- const uint8_t *src_y =
- (const uint8_t *)src.mBits + src.mCropTop * src.mWidth + src.mCropLeft;
-
- const uint8_t *src_u =
- (const uint8_t *)src_y + src.mWidth * src.mHeight
- + src.mCropTop * (src.mWidth / 2) + src.mCropLeft / 2;
-
- const uint8_t *src_v =
- src_u + (src.mWidth / 2) * (src.mHeight / 2);
-
- for (size_t y = 0; y < src.cropHeight(); ++y) {
- for (size_t x = 0; x < src.cropWidth(); x += 2) {
- // B = 1.164 * (Y - 16) + 2.018 * (U - 128)
- // G = 1.164 * (Y - 16) - 0.813 * (V - 128) - 0.391 * (U - 128)
- // R = 1.164 * (Y - 16) + 1.596 * (V - 128)
-
- // B = 298/256 * (Y - 16) + 517/256 * (U - 128)
- // G = .................. - 208/256 * (V - 128) - 100/256 * (U - 128)
- // R = .................. + 409/256 * (V - 128)
-
- // min_B = (298 * (- 16) + 517 * (- 128)) / 256 = -277
- // min_G = (298 * (- 16) - 208 * (255 - 128) - 100 * (255 - 128)) / 256 = -172
- // min_R = (298 * (- 16) + 409 * (- 128)) / 256 = -223
-
- // max_B = (298 * (255 - 16) + 517 * (255 - 128)) / 256 = 534
- // max_G = (298 * (255 - 16) - 208 * (- 128) - 100 * (- 128)) / 256 = 432
- // max_R = (298 * (255 - 16) + 409 * (255 - 128)) / 256 = 481
-
- // clip range -278 .. 535
-
- signed y1 = (signed)src_y[x] - 16;
- signed y2 = (signed)src_y[x + 1] - 16;
-
- signed u = (signed)src_u[x / 2] - 128;
- signed v = (signed)src_v[x / 2] - 128;
-
- signed u_b = u * 517;
- signed u_g = -u * 100;
- signed v_g = -v * 208;
- signed v_r = v * 409;
-
- signed tmp1 = y1 * 298;
- signed b1 = (tmp1 + u_b) / 256;
- signed g1 = (tmp1 + v_g + u_g) / 256;
- signed r1 = (tmp1 + v_r) / 256;
-
- signed tmp2 = y2 * 298;
- signed b2 = (tmp2 + u_b) / 256;
- signed g2 = (tmp2 + v_g + u_g) / 256;
- signed r2 = (tmp2 + v_r) / 256;
-
- uint32_t rgb1 =
- ((kAdjustedClip[r1] >> 3) << 11)
- | ((kAdjustedClip[g1] >> 2) << 5)
- | (kAdjustedClip[b1] >> 3);
-
- uint32_t rgb2 =
- ((kAdjustedClip[r2] >> 3) << 11)
- | ((kAdjustedClip[g2] >> 2) << 5)
- | (kAdjustedClip[b2] >> 3);
-
- if (x + 1 < src.cropWidth()) {
- *(uint32_t *)(&dst_ptr[x]) = (rgb2 << 16) | rgb1;
- } else {
- dst_ptr[x] = rgb1;
- }
- }
-
- src_y += src.mWidth;
-
- if (y & 1) {
- src_u += src.mWidth / 2;
- src_v += src.mWidth / 2;
- }
-
- dst_ptr += dst.mWidth;
- }
-
- return OK;
-}
-
-status_t ColorConverter::convertQCOMYUV420SemiPlanar(
- const BitmapParams &src, const BitmapParams &dst) {
- uint8_t *kAdjustedClip = initClip();
-
- if (!((src.mCropLeft & 1) == 0
- && src.cropWidth() == dst.cropWidth()
- && src.cropHeight() == dst.cropHeight())) {
- return ERROR_UNSUPPORTED;
- }
-
- uint16_t *dst_ptr = (uint16_t *)dst.mBits
- + dst.mCropTop * dst.mWidth + dst.mCropLeft;
-
- const uint8_t *src_y =
- (const uint8_t *)src.mBits + src.mCropTop * src.mWidth + src.mCropLeft;
-
- const uint8_t *src_u =
- (const uint8_t *)src_y + src.mWidth * src.mHeight
- + src.mCropTop * src.mWidth + src.mCropLeft;
-
- for (size_t y = 0; y < src.cropHeight(); ++y) {
- for (size_t x = 0; x < src.cropWidth(); x += 2) {
- signed y1 = (signed)src_y[x] - 16;
- signed y2 = (signed)src_y[x + 1] - 16;
-
- signed u = (signed)src_u[x & ~1] - 128;
- signed v = (signed)src_u[(x & ~1) + 1] - 128;
-
- signed u_b = u * 517;
- signed u_g = -u * 100;
- signed v_g = -v * 208;
- signed v_r = v * 409;
-
- signed tmp1 = y1 * 298;
- signed b1 = (tmp1 + u_b) / 256;
- signed g1 = (tmp1 + v_g + u_g) / 256;
- signed r1 = (tmp1 + v_r) / 256;
-
- signed tmp2 = y2 * 298;
- signed b2 = (tmp2 + u_b) / 256;
- signed g2 = (tmp2 + v_g + u_g) / 256;
- signed r2 = (tmp2 + v_r) / 256;
-
- uint32_t rgb1 =
- ((kAdjustedClip[b1] >> 3) << 11)
- | ((kAdjustedClip[g1] >> 2) << 5)
- | (kAdjustedClip[r1] >> 3);
-
- uint32_t rgb2 =
- ((kAdjustedClip[b2] >> 3) << 11)
- | ((kAdjustedClip[g2] >> 2) << 5)
- | (kAdjustedClip[r2] >> 3);
-
- if (x + 1 < src.cropWidth()) {
- *(uint32_t *)(&dst_ptr[x]) = (rgb2 << 16) | rgb1;
- } else {
- dst_ptr[x] = rgb1;
- }
- }
-
- src_y += src.mWidth;
-
- if (y & 1) {
- src_u += src.mWidth;
- }
-
- dst_ptr += dst.mWidth;
- }
-
- return OK;
-}
-
-status_t ColorConverter::convertYUV420SemiPlanar(
- const BitmapParams &src, const BitmapParams &dst) {
- // XXX Untested
-
- uint8_t *kAdjustedClip = initClip();
-
- if (!((src.mCropLeft & 1) == 0
- && src.cropWidth() == dst.cropWidth()
- && src.cropHeight() == dst.cropHeight())) {
- return ERROR_UNSUPPORTED;
- }
-
- uint16_t *dst_ptr = (uint16_t *)dst.mBits
- + dst.mCropTop * dst.mWidth + dst.mCropLeft;
-
- const uint8_t *src_y =
- (const uint8_t *)src.mBits + src.mCropTop * src.mWidth + src.mCropLeft;
-
- const uint8_t *src_u =
- (const uint8_t *)src_y + src.mWidth * src.mHeight
- + src.mCropTop * src.mWidth + src.mCropLeft;
-
- for (size_t y = 0; y < src.cropHeight(); ++y) {
- for (size_t x = 0; x < src.cropWidth(); x += 2) {
- signed y1 = (signed)src_y[x] - 16;
- signed y2 = (signed)src_y[x + 1] - 16;
-
- signed v = (signed)src_u[x & ~1] - 128;
- signed u = (signed)src_u[(x & ~1) + 1] - 128;
-
- signed u_b = u * 517;
- signed u_g = -u * 100;
- signed v_g = -v * 208;
- signed v_r = v * 409;
-
- signed tmp1 = y1 * 298;
- signed b1 = (tmp1 + u_b) / 256;
- signed g1 = (tmp1 + v_g + u_g) / 256;
- signed r1 = (tmp1 + v_r) / 256;
-
- signed tmp2 = y2 * 298;
- signed b2 = (tmp2 + u_b) / 256;
- signed g2 = (tmp2 + v_g + u_g) / 256;
- signed r2 = (tmp2 + v_r) / 256;
-
- uint32_t rgb1 =
- ((kAdjustedClip[b1] >> 3) << 11)
- | ((kAdjustedClip[g1] >> 2) << 5)
- | (kAdjustedClip[r1] >> 3);
-
- uint32_t rgb2 =
- ((kAdjustedClip[b2] >> 3) << 11)
- | ((kAdjustedClip[g2] >> 2) << 5)
- | (kAdjustedClip[r2] >> 3);
-
- if (x + 1 < src.cropWidth()) {
- *(uint32_t *)(&dst_ptr[x]) = (rgb2 << 16) | rgb1;
- } else {
- dst_ptr[x] = rgb1;
- }
- }
-
- src_y += src.mWidth;
-
- if (y & 1) {
- src_u += src.mWidth;
- }
-
- dst_ptr += dst.mWidth;
- }
-
- return OK;
-}
-
-status_t ColorConverter::convertTIYUV420PackedSemiPlanar(
- const BitmapParams &src, const BitmapParams &dst) {
- uint8_t *kAdjustedClip = initClip();
-
- if (!((src.mCropLeft & 1) == 0
- && src.cropWidth() == dst.cropWidth()
- && src.cropHeight() == dst.cropHeight())) {
- return ERROR_UNSUPPORTED;
- }
-
- uint16_t *dst_ptr = (uint16_t *)dst.mBits
- + dst.mCropTop * dst.mWidth + dst.mCropLeft;
-
- const uint8_t *src_y = (const uint8_t *)src.mBits;
-
- const uint8_t *src_u =
- (const uint8_t *)src_y + src.mWidth * (src.mHeight - src.mCropTop / 2);
-
- for (size_t y = 0; y < src.cropHeight(); ++y) {
- for (size_t x = 0; x < src.cropWidth(); x += 2) {
- signed y1 = (signed)src_y[x] - 16;
- signed y2 = (signed)src_y[x + 1] - 16;
-
- signed u = (signed)src_u[x & ~1] - 128;
- signed v = (signed)src_u[(x & ~1) + 1] - 128;
-
- signed u_b = u * 517;
- signed u_g = -u * 100;
- signed v_g = -v * 208;
- signed v_r = v * 409;
-
- signed tmp1 = y1 * 298;
- signed b1 = (tmp1 + u_b) / 256;
- signed g1 = (tmp1 + v_g + u_g) / 256;
- signed r1 = (tmp1 + v_r) / 256;
-
- signed tmp2 = y2 * 298;
- signed b2 = (tmp2 + u_b) / 256;
- signed g2 = (tmp2 + v_g + u_g) / 256;
- signed r2 = (tmp2 + v_r) / 256;
-
- uint32_t rgb1 =
- ((kAdjustedClip[r1] >> 3) << 11)
- | ((kAdjustedClip[g1] >> 2) << 5)
- | (kAdjustedClip[b1] >> 3);
-
- uint32_t rgb2 =
- ((kAdjustedClip[r2] >> 3) << 11)
- | ((kAdjustedClip[g2] >> 2) << 5)
- | (kAdjustedClip[b2] >> 3);
-
- if (x + 1 < src.cropWidth()) {
- *(uint32_t *)(&dst_ptr[x]) = (rgb2 << 16) | rgb1;
- } else {
- dst_ptr[x] = rgb1;
- }
- }
-
- src_y += src.mWidth;
-
- if (y & 1) {
- src_u += src.mWidth;
- }
-
- dst_ptr += dst.mWidth;
- }
-
- return OK;
-}
-
-uint8_t *ColorConverter::initClip() {
- static const signed kClipMin = -278;
- static const signed kClipMax = 535;
-
- if (mClip == NULL) {
- mClip = new uint8_t[kClipMax - kClipMin + 1];
-
- for (signed i = kClipMin; i <= kClipMax; ++i) {
- mClip[i - kClipMin] = (i < 0) ? 0 : (i > 255) ? 255 : (uint8_t)i;
- }
- }
-
- return &mClip[-kClipMin];
-}
-
-} // namespace android
generated by cgit v1.1 at 2024-06-09 13:52:00 +0000