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8639673f0c
Bug: webrtc:12542 Change-Id: Ic70b46e226f158db7a478a9f20e1f940804febba Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/210966 Commit-Queue: Sergey Silkin <ssilkin@webrtc.org> Reviewed-by: Åsa Persson <asapersson@webrtc.org> Cr-Commit-Position: refs/heads/master@{#33434}
55 lines
1.8 KiB
C++
55 lines
1.8 KiB
C++
/*
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* Copyright (c) 2021 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "modules/video_coding/utility/qp_parser.h"
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#include <utility>
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#include "modules/video_coding/utility/vp8_header_parser.h"
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#include "modules/video_coding/utility/vp9_uncompressed_header_parser.h"
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namespace webrtc {
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absl::optional<uint32_t> QpParser::Parse(VideoCodecType codec_type,
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size_t spatial_idx,
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const uint8_t* frame_data,
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size_t frame_size) {
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if (frame_data == nullptr || frame_size == 0) {
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return absl::nullopt;
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}
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if (codec_type == kVideoCodecVP8) {
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int qp = -1;
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if (vp8::GetQp(frame_data, frame_size, &qp)) {
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return qp;
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}
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} else if (codec_type == kVideoCodecVP9) {
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int qp = -1;
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if (vp9::GetQp(frame_data, frame_size, &qp)) {
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return qp;
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}
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} else if (codec_type == kVideoCodecH264) {
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H264BitstreamParser& parser = FetchOrCreateH264Parser(spatial_idx);
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parser.ParseBitstream(
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rtc::ArrayView<const uint8_t>(frame_data, frame_size));
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return parser.GetLastSliceQp();
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}
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return absl::nullopt;
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}
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H264BitstreamParser& QpParser::FetchOrCreateH264Parser(size_t spatial_idx) {
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if (h264_parsers_.find(spatial_idx) == h264_parsers_.end()) {
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h264_parsers_.emplace(std::make_pair(spatial_idx, H264BitstreamParser()));
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}
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return h264_parsers_.at(spatial_idx);
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}
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} // namespace webrtc
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