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Merge "fuzzer: Updates to fuzzer plugin"

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am: 25e615b9cb

Change-Id: Ic4b2c071197abb0b08774f0a4f5f71bf6ad17225
This commit is contained in:
Harish Mahendrakar 2019-11-14 13:23:04 -08:00 • committed by android-build-merger
commit 82735c3553
1 changed files with 34 additions and 3 deletions
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37
fuzzer/avc_dec_fuzzer.cpp
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@ -38,14 +38,24 @@ const IV_COLOR_FORMAT_T supportedColorFormats[] = {
IV_YUV_420P, IV_YUV_420SP_UV, IV_YUV_420SP_VU,
IV_YUV_422ILE, IV_RGB_565, IV_RGBA_8888};
/* Decoder ignores invalid arch, i.e. for arm build, if SSSE3 is requested,
* decoder defaults to a supported configuration. So same set of supported
* architectures can be used in arm/arm64/x86 builds */
const IVD_ARCH_T supportedArchitectures[] = {
ARCH_ARM_NONEON, ARCH_ARM_A9Q, ARCH_ARM_NEONINTR, ARCH_ARMV8_GENERIC,
ARCH_X86_GENERIC, ARCH_X86_SSSE3, ARCH_X86_SSE42};
enum {
OFFSET_COLOR_FORMAT = 6,
OFFSET_NUM_CORES,
OFFSET_ARCH,
/* Should be the last entry */
OFFSET_MAX,
};
const static int kMaxNumDecodeCalls = 100;
const static int kSupportedColorFormats = NELEMENTS(supportedColorFormats);
const static int kSupportedArchitectures = NELEMENTS(supportedArchitectures);
const static int kMaxCores = 4;
void *iv_aligned_malloc(void *ctxt, WORD32 alignment, WORD32 size) {
void *buf = NULL;
@ -76,6 +86,7 @@ class Codec {
IV_API_CALL_STATUS_T decodeFrame(const uint8_t *data, size_t size,
size_t *bytesConsumed);
void setParams(IVD_VIDEO_DECODE_MODE_T mode);
void setArchitecture(IVD_ARCH_T arch);
private:
IV_COLOR_FORMAT_T mColorFormat;
@ -172,6 +183,20 @@ void Codec::setParams(IVD_VIDEO_DECODE_MODE_T mode) {
ivd_api_function(mCodec, (void *)&s_ctl_ip, (void *)&s_ctl_op);
}
void Codec::setArchitecture(IVD_ARCH_T arch) {
ih264d_ctl_set_processor_ip_t s_ctl_ip;
ih264d_ctl_set_processor_op_t s_ctl_op;
s_ctl_ip.e_cmd = IVD_CMD_VIDEO_CTL;
s_ctl_ip.e_sub_cmd =
(IVD_CONTROL_API_COMMAND_TYPE_T)IH264D_CMD_CTL_SET_PROCESSOR;
s_ctl_ip.u4_arch = arch;
s_ctl_ip.u4_soc = SOC_GENERIC;
s_ctl_ip.u4_size = sizeof(ih264d_ctl_set_processor_ip_t);
s_ctl_op.u4_size = sizeof(ih264d_ctl_set_processor_op_t);
ivd_api_function(mCodec, (void *)&s_ctl_ip, (void *)&s_ctl_op);
}
void Codec::freeFrame() {
for (int i = 0; i < mOutBufHandle.u4_num_bufs; i++) {
if (mOutBufHandle.pu1_bufs[i]) {
@ -299,7 +324,8 @@ IV_API_CALL_STATUS_T Codec::decodeFrame(const uint8_t *data, size_t size,
* to feed next data */
if (!*bytesConsumed) *bytesConsumed = 4;
if (mWidth != dec_op.u4_pic_wd || mHeight != dec_op.u4_pic_ht) {
if (dec_op.u4_pic_wd && dec_op.u4_pic_ht &&
(mWidth != dec_op.u4_pic_wd || mHeight != dec_op.u4_pic_ht)) {
mWidth = std::min(dec_op.u4_pic_wd, (UWORD32)10240);
mHeight = std::min(dec_op.u4_pic_ht, (UWORD32)10240);
allocFrame();
@ -314,19 +340,23 @@ extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
}
size_t colorFormatOfst = std::min((size_t)OFFSET_COLOR_FORMAT, size - 1);
size_t numCoresOfst = std::min((size_t)OFFSET_NUM_CORES, size - 1);
size_t architectureOfst = std::min((size_t)OFFSET_ARCH, size - 1);
size_t architectureIdx = data[architectureOfst] % kSupportedArchitectures;
IVD_ARCH_T arch = (IVD_ARCH_T)supportedArchitectures[architectureIdx];
size_t colorFormatIdx = data[colorFormatOfst] % kSupportedColorFormats;
IV_COLOR_FORMAT_T colorFormat =
(IV_COLOR_FORMAT_T)(supportedColorFormats[colorFormatIdx]);
uint32_t numCores = (data[numCoresOfst] % kMaxCores) + 1;
size_t numDecodeCalls = 0;
Codec *codec = new Codec(colorFormat, numCores);
codec->createCodec();
codec->setArchitecture(arch);
codec->setCores();
codec->decodeHeader(data, size);
codec->setParams(IVD_DECODE_FRAME);
codec->allocFrame();
while (size > 0) {
while (size > 0 && numDecodeCalls < kMaxNumDecodeCalls) {
IV_API_CALL_STATUS_T ret;
size_t bytesConsumed;
ret = codec->decodeFrame(data, size, &bytesConsumed);
@ -334,6 +364,7 @@ extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
bytesConsumed = std::min(size, bytesConsumed);
data += bytesConsumed;
size -= bytesConsumed;
numDecodeCalls++;
}
codec->freeFrame();