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/*
* Copyright 2011, 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 "AndroidMediaUtils"
#include <hardware/camera3.h>
#include <utils/Log.h>
#include "android_media_Utils.h"
#define ALIGN(x, mask) ( ((x) + (mask) - 1) & ~((mask) - 1) )
// Must be in sync with the value in HeicCompositeStream.cpp
#define CAMERA3_HEIC_BLOB_ID 0x00FE
namespace android {
// -----------Utility functions used by ImageReader/Writer JNI-----------------
enum {
IMAGE_MAX_NUM_PLANES = 3,
};
bool usingRGBAToJpegOverride(int32_t imageFormat,
int32_t containerFormat) {
return containerFormat == HAL_PIXEL_FORMAT_BLOB && imageFormat == HAL_PIXEL_FORMAT_RGBA_8888;
}
int32_t applyFormatOverrides(int32_t imageFormat, int32_t containerFormat) {
// Using HAL_PIXEL_FORMAT_RGBA_8888 gralloc buffers containing JPEGs to get around SW
// write limitations for some platforms (b/17379185).
if (usingRGBAToJpegOverride(imageFormat, containerFormat)) {
return HAL_PIXEL_FORMAT_BLOB;
}
return containerFormat;
}
bool isFormatOpaque(int format) {
// This is the only opaque format exposed in the ImageFormat public API.
// Note that we do support CPU access for HAL_PIXEL_FORMAT_RAW_OPAQUE
// (ImageFormat#RAW_PRIVATE) so it doesn't count as opaque here.
return format == HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED;
}
bool isPossiblyYUV(PixelFormat format) {
switch (static_cast<int>(format)) {
case HAL_PIXEL_FORMAT_RGBA_8888:
case HAL_PIXEL_FORMAT_RGBX_8888:
case HAL_PIXEL_FORMAT_RGB_888:
case HAL_PIXEL_FORMAT_RGB_565:
case HAL_PIXEL_FORMAT_BGRA_8888:
case HAL_PIXEL_FORMAT_Y8:
case HAL_PIXEL_FORMAT_Y16:
case HAL_PIXEL_FORMAT_RAW16:
case HAL_PIXEL_FORMAT_RAW10:
case HAL_PIXEL_FORMAT_RAW_OPAQUE:
case HAL_PIXEL_FORMAT_BLOB:
case HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED:
return false;
case HAL_PIXEL_FORMAT_YV12:
case HAL_PIXEL_FORMAT_YCbCr_420_888:
case HAL_PIXEL_FORMAT_YCrCb_420_SP:
default:
return true;
}
}
uint32_t Image_getBlobSize(LockedImage* buffer, bool usingRGBAOverride) {
ALOGV("%s", __FUNCTION__);
LOG_ALWAYS_FATAL_IF(buffer == NULL, "Input buffer is NULL!!!");
uint32_t size = 0;
uint32_t width = buffer->width;
uint8_t* blobBuffer = buffer->data;
if (usingRGBAOverride) {
width = (buffer->width + buffer->stride * (buffer->height - 1)) * 4;
}
// First check for BLOB transport header at the end of the buffer
uint8_t* header = blobBuffer + (width - sizeof(struct camera3_jpeg_blob));
struct camera3_jpeg_blob *blob = (struct camera3_jpeg_blob*)(header);
if (blob->jpeg_blob_id == CAMERA3_JPEG_BLOB_ID ||
blob->jpeg_blob_id == CAMERA3_HEIC_BLOB_ID) {
size = blob->jpeg_size;
ALOGV("%s: Jpeg/Heic size = %d", __FUNCTION__, size);
}
// failed to find size, default to whole buffer
if (size == 0) {
/*
* This is a problem because not including the JPEG/BLOB header
* means that in certain rare situations a regular JPEG/HEIC blob
* will be mis-identified as having a header, in which case
* we will get a garbage size value.
*/
ALOGW("%s: No JPEG/HEIC header detected, defaulting to size=width=%d",
__FUNCTION__, width);
size = width;
}
return size;
}
status_t getLockedImageInfo(LockedImage* buffer, int idx,
int32_t containerFormat, uint8_t **base, uint32_t *size, int *pixelStride, int *rowStride) {
ALOGV("%s", __FUNCTION__);
LOG_ALWAYS_FATAL_IF(buffer == NULL, "Input buffer is NULL!!!");
LOG_ALWAYS_FATAL_IF(base == NULL, "base is NULL!!!");
LOG_ALWAYS_FATAL_IF(size == NULL, "size is NULL!!!");
LOG_ALWAYS_FATAL_IF(pixelStride == NULL, "pixelStride is NULL!!!");
LOG_ALWAYS_FATAL_IF(rowStride == NULL, "rowStride is NULL!!!");
LOG_ALWAYS_FATAL_IF((idx >= IMAGE_MAX_NUM_PLANES) || (idx < 0), "idx (%d) is illegal", idx);
ALOGV("%s: buffer: %p", __FUNCTION__, buffer);
uint32_t dataSize, ySize, cSize, cStride;
uint32_t pStride = 0, rStride = 0;
uint8_t *cb, *cr;
uint8_t *pData = NULL;
int bytesPerPixel = 0;
dataSize = ySize = cSize = cStride = 0;
int32_t fmt = buffer->flexFormat;
bool usingRGBAOverride = usingRGBAToJpegOverride(fmt, containerFormat);
fmt = applyFormatOverrides(fmt, containerFormat);
switch (fmt) {
case HAL_PIXEL_FORMAT_YCbCr_420_888:
pData =
(idx == 0) ?
buffer->data :
(idx == 1) ?
buffer->dataCb :
buffer->dataCr;
// only map until last pixel
if (idx == 0) {
pStride = 1;
rStride = buffer->stride;
dataSize = buffer->stride * (buffer->height - 1) + buffer->width;
} else {
pStride = buffer->chromaStep;
rStride = buffer->chromaStride;
dataSize = buffer->chromaStride * (buffer->height / 2 - 1) +
buffer->chromaStep * (buffer->width / 2 - 1) + 1;
}
break;
// NV21
case HAL_PIXEL_FORMAT_YCrCb_420_SP:
cr = buffer->data + (buffer->stride * buffer->height);
cb = cr + 1;
// only map until last pixel
ySize = buffer->width * (buffer->height - 1) + buffer->width;
cSize = buffer->width * (buffer->height / 2 - 1) + buffer->width - 1;
pData =
(idx == 0) ?
buffer->data :
(idx == 1) ?
cb:
cr;
dataSize = (idx == 0) ? ySize : cSize;
pStride = (idx == 0) ? 1 : 2;
rStride = buffer->width;
break;
case HAL_PIXEL_FORMAT_YV12:
// Y and C stride need to be 16 pixel aligned.
LOG_ALWAYS_FATAL_IF(buffer->stride % 16,
"Stride is not 16 pixel aligned %d", buffer->stride);
ySize = buffer->stride * buffer->height;
cStride = ALIGN(buffer->stride / 2, 16);
cr = buffer->data + ySize;
cSize = cStride * buffer->height / 2;
cb = cr + cSize;
pData =
(idx == 0) ?
buffer->data :
(idx == 1) ?
cb :
cr;
dataSize = (idx == 0) ? ySize : cSize;
pStride = 1;
rStride = (idx == 0) ? buffer->stride : ALIGN(buffer->stride / 2, 16);
break;
case HAL_PIXEL_FORMAT_Y8:
// Single plane, 8bpp.
LOG_ALWAYS_FATAL_IF(idx != 0, "Wrong index: %d", idx);
pData = buffer->data;
dataSize = buffer->stride * buffer->height;
pStride = 1;
rStride = buffer->stride;
break;
case HAL_PIXEL_FORMAT_Y16:
bytesPerPixel = 2;
// Single plane, 16bpp, strides are specified in pixels, not in bytes
LOG_ALWAYS_FATAL_IF(idx != 0, "Wrong index: %d", idx);
pData = buffer->data;
dataSize = buffer->stride * buffer->height * bytesPerPixel;
pStride = bytesPerPixel;
rStride = buffer->stride * 2;
break;
case HAL_PIXEL_FORMAT_BLOB:
// Used for JPEG data, height must be 1, width == size, single plane.
LOG_ALWAYS_FATAL_IF(idx != 0, "Wrong index: %d", idx);
// When RGBA override is being used, buffer height will be equal to width
if (usingRGBAOverride) {
LOG_ALWAYS_FATAL_IF(buffer->height != buffer->width,
"RGBA override BLOB format buffer should have height == width");
} else {
LOG_ALWAYS_FATAL_IF(buffer->height != 1,
"BLOB format buffer should have height value 1");
}
pData = buffer->data;
dataSize = Image_getBlobSize(buffer, usingRGBAOverride);
pStride = 0;
rStride = 0;
break;
case HAL_PIXEL_FORMAT_RAW16:
// Single plane 16bpp bayer data.
bytesPerPixel = 2;
LOG_ALWAYS_FATAL_IF(idx != 0, "Wrong index: %d", idx);
pData = buffer->data;
dataSize = buffer->stride * buffer->height * bytesPerPixel;
pStride = bytesPerPixel;
rStride = buffer->stride * 2;
break;
case HAL_PIXEL_FORMAT_RAW_OPAQUE:
// Used for RAW_OPAQUE data, height must be 1, width == size, single plane.
LOG_ALWAYS_FATAL_IF(idx != 0, "Wrong index: %d", idx);
LOG_ALWAYS_FATAL_IF(buffer->height != 1,
"RAW_PRIVATE should has height value one but got %d", buffer->height);
pData = buffer->data;
dataSize = buffer->width;
pStride = 0; // RAW OPAQUE doesn't have pixel stride
rStride = 0; // RAW OPAQUE doesn't have row stride
break;
case HAL_PIXEL_FORMAT_RAW10:
// Single plane 10bpp bayer data.
LOG_ALWAYS_FATAL_IF(idx != 0, "Wrong index: %d", idx);
LOG_ALWAYS_FATAL_IF(buffer->width % 4,
"Width is not multiple of 4 %d", buffer->width);
LOG_ALWAYS_FATAL_IF(buffer->height % 2,
"Height is not even %d", buffer->height);
LOG_ALWAYS_FATAL_IF(buffer->stride < (buffer->width * 10 / 8),
"stride (%d) should be at least %d",
buffer->stride, buffer->width * 10 / 8);
pData = buffer->data;
dataSize = buffer->stride * buffer->height;
pStride = 0;
rStride = buffer->stride;
break;
case HAL_PIXEL_FORMAT_RAW12:
// Single plane 10bpp bayer data.
LOG_ALWAYS_FATAL_IF(idx != 0, "Wrong index: %d", idx);
LOG_ALWAYS_FATAL_IF(buffer->width % 4,
"Width is not multiple of 4 %d", buffer->width);
LOG_ALWAYS_FATAL_IF(buffer->height % 2,
"Height is not even %d", buffer->height);
LOG_ALWAYS_FATAL_IF(buffer->stride < (buffer->width * 12 / 8),
"stride (%d) should be at least %d",
buffer->stride, buffer->width * 12 / 8);
pData = buffer->data;
dataSize = buffer->stride * buffer->height;
pStride = 0;
rStride = buffer->stride;
break;
case HAL_PIXEL_FORMAT_RGBA_8888:
case HAL_PIXEL_FORMAT_RGBX_8888:
// Single plane, 32bpp.
bytesPerPixel = 4;
LOG_ALWAYS_FATAL_IF(idx != 0, "Wrong index: %d", idx);
pData = buffer->data;
dataSize = buffer->stride * buffer->height * bytesPerPixel;
pStride = bytesPerPixel;
rStride = buffer->stride * 4;
break;
case HAL_PIXEL_FORMAT_RGB_565:
// Single plane, 16bpp.
bytesPerPixel = 2;
LOG_ALWAYS_FATAL_IF(idx != 0, "Wrong index: %d", idx);
pData = buffer->data;
dataSize = buffer->stride * buffer->height * bytesPerPixel;
pStride = bytesPerPixel;
rStride = buffer->stride * 2;
break;
case HAL_PIXEL_FORMAT_RGB_888:
// Single plane, 24bpp.
bytesPerPixel = 3;
LOG_ALWAYS_FATAL_IF(idx != 0, "Wrong index: %d", idx);
pData = buffer->data;
dataSize = buffer->stride * buffer->height * bytesPerPixel;
pStride = bytesPerPixel;
rStride = buffer->stride * 3;
break;
default:
return BAD_VALUE;
}
*base = pData;
*size = dataSize;
*pixelStride = pStride;
*rowStride = rStride;
return OK;
}
status_t lockImageFromBuffer(sp<GraphicBuffer> buffer, uint32_t inUsage,
const Rect& rect, int fenceFd, LockedImage* outputImage) {
ALOGV("%s: Try to lock the GraphicBuffer", __FUNCTION__);
if (buffer == nullptr || outputImage == nullptr) {
ALOGE("Input BufferItem or output LockedImage is NULL!");
return BAD_VALUE;
}
if (isFormatOpaque(buffer->getPixelFormat())) {
ALOGE("Opaque format buffer is not lockable!");
return BAD_VALUE;
}
void* pData = NULL;
android_ycbcr ycbcr = android_ycbcr();
status_t res;
int format = buffer->getPixelFormat();
int flexFormat = format;
if (isPossiblyYUV(format)) {
res = buffer->lockAsyncYCbCr(inUsage, rect, &ycbcr, fenceFd);
pData = ycbcr.y;
flexFormat = HAL_PIXEL_FORMAT_YCbCr_420_888;
}
// lockAsyncYCbCr for YUV is unsuccessful.
if (pData == NULL) {
res = buffer->lockAsync(inUsage, rect, &pData, fenceFd);
if (res != OK) {
ALOGE("Lock buffer failed!");
return res;
}
}
outputImage->data = reinterpret_cast<uint8_t*>(pData);
outputImage->width = buffer->getWidth();
outputImage->height = buffer->getHeight();
outputImage->format = format;
outputImage->flexFormat = flexFormat;
outputImage->stride =
(ycbcr.y != NULL) ? static_cast<uint32_t>(ycbcr.ystride) : buffer->getStride();
outputImage->dataCb = reinterpret_cast<uint8_t*>(ycbcr.cb);
outputImage->dataCr = reinterpret_cast<uint8_t*>(ycbcr.cr);
outputImage->chromaStride = static_cast<uint32_t>(ycbcr.cstride);
outputImage->chromaStep = static_cast<uint32_t>(ycbcr.chroma_step);
ALOGV("%s: Successfully locked the image from the GraphicBuffer", __FUNCTION__);
// Crop, transform, scalingMode, timestamp, and frameNumber should be set by caller,
// and cann't be set them here.
return OK;
}
status_t lockImageFromBuffer(BufferItem* bufferItem, uint32_t inUsage,
int fenceFd, LockedImage* outputImage) {
ALOGV("%s: Try to lock the BufferItem", __FUNCTION__);
if (bufferItem == nullptr || outputImage == nullptr) {
ALOGE("Input BufferItem or output LockedImage is NULL!");
return BAD_VALUE;
}
status_t res = lockImageFromBuffer(bufferItem->mGraphicBuffer, inUsage, bufferItem->mCrop,
fenceFd, outputImage);
if (res != OK) {
ALOGE("%s: lock graphic buffer failed", __FUNCTION__);
return res;
}
outputImage->crop = bufferItem->mCrop;
outputImage->transform = bufferItem->mTransform;
outputImage->scalingMode = bufferItem->mScalingMode;
outputImage->timestamp = bufferItem->mTimestamp;
outputImage->dataSpace = bufferItem->mDataSpace;
outputImage->frameNumber = bufferItem->mFrameNumber;
ALOGV("%s: Successfully locked the image from the BufferItem", __FUNCTION__);
return OK;
}
int getBufferWidth(BufferItem* buffer) {
if (buffer == NULL) return -1;
if (!buffer->mCrop.isEmpty()) {
return buffer->mCrop.getWidth();
}
ALOGV("%s: buffer->mGraphicBuffer: %p", __FUNCTION__, buffer->mGraphicBuffer.get());
return buffer->mGraphicBuffer->getWidth();
}
int getBufferHeight(BufferItem* buffer) {
if (buffer == NULL) return -1;
if (!buffer->mCrop.isEmpty()) {
return buffer->mCrop.getHeight();
}
ALOGV("%s: buffer->mGraphicBuffer: %p", __FUNCTION__, buffer->mGraphicBuffer.get());
return buffer->mGraphicBuffer->getHeight();
}
} // namespace android