84                                           const SharedBuffer& srcBuffer, int64_t srcOffset,  in descramble()  argument
92     if (srcBuffer.heapBase.size > SIZE_MAX) {  in descramble()
93         ALOGE("Invalid memory size: %" PRIu64 "", srcBuffer.heapBase.size);  in descramble()
98     void* srcPtr = mmap(NULL, srcBuffer.heapBase.size, PROT_READ | PROT_WRITE, MAP_SHARED,  in descramble()
99                         srcBuffer.heapBase.fd.get(), 0);  in descramble()
107     if (!validateRangeForSize(srcBuffer.offset, srcBuffer.size, srcBuffer.heapBase.size)) {  in descramble()
111               srcBuffer.offset, srcBuffer.size, srcBuffer.heapBase.size);  in descramble()
125     if (!validateRangeForSize(srcOffset, totalBytesInSubSamples, srcBuffer.size)) {  in descramble()
130               srcOffset, totalBytesInSubSamples, srcBuffer.size);  in descramble()
134     srcPtr = (uint8_t*)srcPtr + srcBuffer.offset;  in descramble()
144         if (!validateRangeForSize(dstOffset, totalBytesInSubSamples, srcBuffer.size)) {  in descramble()
149                   dstOffset, totalBytesInSubSamples, srcBuffer.size);  in descramble()