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/******************************************************************************
*
* Copyright (C) 2020 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.
*
*****************************************************************************
* Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore
*/
#include <algorithm>
#include <memory>
#include "ihevc_typedefs.h"
#include "itt_video_api.h"
#include "ihevce_api.h"
#include "ihevce_plugin.h"
#include "ihevce_profile.h"
constexpr size_t kRcType[] = {2, 3, 5};
constexpr IHEVCE_QUALITY_CONFIG_T kQuality[] = {
IHEVCE_QUALITY_P0, IHEVCE_QUALITY_P2, IHEVCE_QUALITY_P3, IHEVCE_QUALITY_P4,
IHEVCE_QUALITY_P5, IHEVCE_QUALITY_P6, IHEVCE_QUALITY_P7};
constexpr size_t kRcTypeNum = std::size(kRcType);
constexpr size_t kQualityNum = std::size(kQuality);
constexpr size_t kMaxQP = 51;
constexpr size_t kMaxGopPeriod = 16;
constexpr size_t kMaxWidth = 10240;
constexpr size_t kMaxHeight = 10240;
constexpr size_t kMaxBitrate = 500000000;
enum {
IDX_WD_BYTE_1,
IDX_WD_BYTE_2,
IDX_HT_BYTE_1,
IDX_HT_BYTE_2,
IDX_MAX_INTRA_TX_DEPTH,
IDX_MAX_INTER_TX_DEPTH,
IDX_CU_RC,
IDX_RC_MODE,
IDX_FRAME_QP,
IDX_PRESET,
IDX_BITRATE_BYTE_1,
IDX_BITRATE_BYTE_2,
IDX_ENABLE_ENTROPY_SYNC,
IDX_DEBLOCKING_TYPE,
IDX_USE_SC_MTX,
IDX_MAX_TEMPORAL_LAYERS,
IDX_MAX_CLOSED_GOP,
IDX_MIN_CLOSED_GOP,
IDX_MAX_I_OPEN_GOP,
IDX_MAX_CRA_OPEN_GOP,
IDX_ENABLE_SPS_AT_CDR,
IDX_ENABLE_VUI,
IDX_ENABLE_SEI,
IDX_ARCH_TYPE,
IDX_ENABLE_FORCE_IDR,
IDX_ENABLE_DYNAMIC_BITRATE,
IDX_FORCE_IDR_INTERVAL,
IDX_DYNAMIC_BITRATE_INTERVAL,
IDX_LAST
};
class Codec {
public:
Codec() = default;
~Codec() { deInitEncoder(); }
bool initEncoder(const uint8_t *data);
void deInitEncoder();
void encodeFrames(const uint8_t *data, size_t size);
private:
bool mIsForceIdrEnabled = false;
bool mIsDynamicBitrateChangeEnabled = false;
size_t mWidth = 352;
size_t mHeight = 288;
size_t mForceIdrInterval = 0; // in number of frames
size_t mDynamicBitrateInterval = 0; // in number of frames
uint64_t mBitrate = 5000000;
void *mCodecCtx = nullptr;
ihevce_static_cfg_params_t mEncParams = {};
};
bool Codec::initEncoder(const uint8_t *data) {
// default configuration
if (IHEVCE_EOK != ihevce_set_def_params(&mEncParams)) {
return false;
}
mWidth = ((data[IDX_WD_BYTE_1] << 8) | data[IDX_WD_BYTE_2]) % kMaxWidth;
mHeight = ((data[IDX_HT_BYTE_1] << 8) | data[IDX_HT_BYTE_2]) % kMaxHeight;
// update configuration
mEncParams.s_src_prms.i4_width = mWidth;
mEncParams.s_src_prms.i4_height = mHeight;
mEncParams.s_config_prms.i4_max_tr_tree_depth_I = (data[IDX_MAX_INTRA_TX_DEPTH] % 3) + 1;
mEncParams.s_config_prms.i4_max_tr_tree_depth_nI = (data[IDX_MAX_INTER_TX_DEPTH] & 0x03) + 1;
mEncParams.s_config_prms.i4_cu_level_rc = data[IDX_CU_RC] & 0x01;
mEncParams.s_config_prms.i4_rate_control_mode = kRcType[data[IDX_RC_MODE] % kRcTypeNum];
mEncParams.s_tgt_lyr_prms.as_tgt_params[0].ai4_frame_qp[0] = (data[IDX_FRAME_QP] % kMaxQP) + 1;
mEncParams.s_tgt_lyr_prms.as_tgt_params[0].i4_quality_preset =
kQuality[data[IDX_PRESET] % kQualityNum];
mEncParams.s_tgt_lyr_prms.as_tgt_params[0].ai4_tgt_bitrate[0] =
(((data[IDX_BITRATE_BYTE_1] << 8) | data[IDX_BITRATE_BYTE_2]) * 1000) % kMaxBitrate;
mEncParams.s_tgt_lyr_prms.as_tgt_params[0].ai4_peak_bitrate[0] =
((((data[IDX_BITRATE_BYTE_1] << 8) | data[IDX_BITRATE_BYTE_2]) * 1000) % kMaxBitrate) << 1;
mEncParams.s_coding_tools_prms.i4_enable_entropy_sync = data[IDX_ENABLE_ENTROPY_SYNC] & 0x01;
mEncParams.s_coding_tools_prms.i4_deblocking_type = data[IDX_DEBLOCKING_TYPE] & 0x01;
mEncParams.s_coding_tools_prms.i4_use_default_sc_mtx = data[IDX_USE_SC_MTX] & 0x01;
mEncParams.s_coding_tools_prms.i4_max_temporal_layers = data[IDX_MAX_TEMPORAL_LAYERS] & 0x02;
mEncParams.s_coding_tools_prms.i4_max_closed_gop_period =
data[IDX_MAX_CLOSED_GOP] % kMaxGopPeriod;
mEncParams.s_coding_tools_prms.i4_min_closed_gop_period =
data[IDX_MIN_CLOSED_GOP] % kMaxGopPeriod;
mEncParams.s_coding_tools_prms.i4_max_i_open_gop_period =
data[IDX_MAX_I_OPEN_GOP] % kMaxGopPeriod;
mEncParams.s_coding_tools_prms.i4_max_cra_open_gop_period =
data[IDX_MAX_CRA_OPEN_GOP] % kMaxGopPeriod;
mEncParams.s_out_strm_prms.i4_sps_at_cdr_enable = data[IDX_ENABLE_SPS_AT_CDR] & 0x01;
mEncParams.s_out_strm_prms.i4_vui_enable = data[IDX_ENABLE_VUI] & 0x01;
mEncParams.s_out_strm_prms.i4_sei_enable_flag = data[IDX_ENABLE_SEI] & 0x01;
mEncParams.e_arch_type = ((data[IDX_ARCH_TYPE] & 0x03) == 0x00) ? ARCH_ARM_NONEON : ARCH_NA;
mIsForceIdrEnabled = data[IDX_ENABLE_FORCE_IDR] & 0x01;
mIsDynamicBitrateChangeEnabled = data[IDX_ENABLE_DYNAMIC_BITRATE] & 0x01;
mForceIdrInterval = data[IDX_FORCE_IDR_INTERVAL] & 0x07;
mDynamicBitrateInterval = data[IDX_DYNAMIC_BITRATE_INTERVAL] & 0x07;
if (IHEVCE_EOK != ihevce_init(&mEncParams, &mCodecCtx)) {
return false;
}
return true;
}
void Codec::encodeFrames(const uint8_t *data, size_t size) {
size_t frameSize = (mWidth * mHeight * 3) / 2;
ihevce_out_buf_t sHeaderOp{};
ihevce_encode_header(mCodecCtx, &sHeaderOp);
size_t frameNumber = 0;
uint8_t *tmpData = new uint8_t[frameSize];
while (size > 0) {
ihevce_inp_buf_t sEncodeIp{};
ihevce_out_buf_t sEncodeOp{};
size_t bytesConsumed = std::min(size, frameSize);
if (bytesConsumed < frameSize) {
memset(&tmpData[bytesConsumed], data[0], frameSize - bytesConsumed);
}
memcpy(tmpData, data, bytesConsumed);
int32_t yStride = mWidth;
int32_t uStride = mWidth >> 1;
int32_t vStride = mWidth >> 1;
sEncodeIp.apv_inp_planes[0] = tmpData;
sEncodeIp.apv_inp_planes[1] = tmpData + (mWidth * mHeight);
sEncodeIp.apv_inp_planes[2] = tmpData + ((mWidth * mHeight) * 5) / 4;
sEncodeIp.ai4_inp_strd[0] = yStride;
sEncodeIp.ai4_inp_strd[1] = uStride;
sEncodeIp.ai4_inp_strd[2] = vStride;
sEncodeIp.ai4_inp_size[0] = yStride * mHeight;
sEncodeIp.ai4_inp_size[1] = uStride * mHeight >> 1;
sEncodeIp.ai4_inp_size[2] = vStride * mHeight >> 1;
sEncodeIp.i4_force_idr_flag = 0;
sEncodeIp.i4_curr_bitrate = mBitrate;
sEncodeIp.i4_curr_peak_bitrate = mBitrate << 1;
sEncodeIp.u8_pts = 0;
if (mIsForceIdrEnabled) {
if (frameNumber == mForceIdrInterval) {
sEncodeIp.i4_force_idr_flag = 1;
}
}
if (mIsDynamicBitrateChangeEnabled) {
if (frameNumber == mDynamicBitrateInterval) {
mBitrate = mBitrate << 1;
}
}
ihevce_encode(mCodecCtx, &sEncodeIp, &sEncodeOp);
++frameNumber;
data += bytesConsumed;
size -= bytesConsumed;
}
delete[] tmpData;
}
void Codec::deInitEncoder() {
if (mCodecCtx) {
ihevce_close(mCodecCtx);
mCodecCtx = nullptr;
}
return;
}
extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
if (size < IDX_LAST) {
return 0;
}
Codec *codec = new Codec();
if (codec->initEncoder(data)) {
data += IDX_LAST;
size -= IDX_LAST;
codec->encodeFrames(data, size);
}
delete codec;
return 0;
}
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