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// Copyright 2023 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "media/gpu/v4l2/test/h264_dpb.h"
namespace media {
namespace v4l2_test {
H264SliceMetadata::H264SliceMetadata() = default;
H264SliceMetadata::H264SliceMetadata(const H264SliceMetadata&) = default;
int H264DPB::CountRefPics() {
int ret = 0;
for (auto& i : *this) {
if (i.second.ref) {
ret++;
}
}
return ret;
}
void H264DPB::Delete(const H264SliceMetadata& pic) {
erase(pic.ref_ts_nsec);
}
void H264DPB::DeleteUnused() {
std::vector<uint64_t> keys;
for (auto& i : *this) {
if (i.second.outputted && !i.second.ref) {
keys.push_back(i.first);
}
}
for (auto i : keys) {
erase(i);
}
}
void H264DPB::UnmarkLowestFrameNumWrapShortRefPic() {
int key = -1;
for (auto& i : *this) {
H264SliceMetadata pic = i.second;
if (pic.ref && !pic.long_term_reference_flag &&
(key < 0 || pic.frame_num_wrap < this->at(key).frame_num_wrap)) {
key = i.first;
}
}
if (key >= 0) {
this->at(key).ref = false;
}
}
std::vector<H264SliceMetadata*> H264DPB::GetNotOutputtedPicsAppending() {
std::vector<H264SliceMetadata*> notOutputtedSlices;
for (auto& i : *this) {
if (!i.second.outputted) {
notOutputtedSlices.push_back(&(i.second));
}
}
return notOutputtedSlices;
}
void H264DPB::MarkAllUnusedRef() {
for (auto& i : *this) {
i.second.ref = false;
}
}
void H264DPB::UpdatePicNums(const int curr_frame_num, const int max_frame_num) {
for (auto& i : *this) {
if (!i.second.ref) {
continue;
}
// Update picture numbers as defined in section 8.2.4.1.
if (i.second.long_term_reference_flag) {
i.second.long_term_pic_num = i.second.long_term_frame_idx;
} else {
if (i.second.frame_num > curr_frame_num) {
i.second.frame_num_wrap = i.second.frame_num - max_frame_num;
} else {
i.second.frame_num_wrap = i.second.frame_num;
}
i.second.pic_num = i.second.frame_num_wrap;
}
}
}
void H264DPB::UnmarkPicByPicNum(const int pic_num) {
for (auto& i : *this) {
if (i.second.pic_num == pic_num && i.second.ref &&
!i.second.long_term_reference_flag) {
i.second.ref = false;
break;
}
}
}
void H264DPB::UnmarkLongTerm(const int pic_num) {
for (auto& i : *this) {
if (i.second.long_term_pic_num == pic_num && i.second.ref &&
i.second.long_term_reference_flag) {
i.second.ref = false;
break;
}
}
}
H264SliceMetadata* H264DPB::GetShortRefPicByPicNum(const int pic_num) {
for (auto& i : *this) {
if (i.second.ref && !i.second.long_term_reference_flag &&
i.second.pic_num == pic_num) {
return &i.second;
}
}
return nullptr;
}
H264SliceMetadata* H264DPB::GetLongRefPicByFrameIdx(const int frame_index) {
for (auto& i : *this) {
if (i.second.ref && i.second.long_term_reference_flag &&
i.second.long_term_frame_idx == frame_index) {
return &i.second;
}
}
return nullptr;
}
void H264DPB::UnmarkLongTermPicsGreaterThanFrameIndex(const int index) {
for (auto& i : *this) {
if (i.second.long_term_reference_flag &&
i.second.long_term_frame_idx > index) {
i.second.ref = false;
}
}
}
std::set<int> H264DPB::GetHeldCaptureIds() const {
std::set<int> dpb_ids;
for (auto& i : *this) {
if (i.second.ref || !i.second.outputted) {
dpb_ids.insert(i.second.capture_queue_buffer_id);
}
}
return dpb_ids;
}
} // namespace v4l2_test
} // namespace media
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