fa7c5b6674
Deliver original decoded resolution unless output resolution is explicitly configured via ChangeResolution(). Bug: none Change-Id: I1d2a47fa564010202762062d7ac483ad3c4effde Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/375340 Reviewed-by: Erik Språng <sprang@webrtc.org> Commit-Queue: Sergey Silkin <ssilkin@webrtc.org> Cr-Commit-Position: refs/heads/main@{#43902}
101 lines
3.7 KiB
C++
101 lines
3.7 KiB
C++
/*
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* Copyright (c) 2019 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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#ifndef TEST_TESTSUPPORT_IVF_VIDEO_FRAME_GENERATOR_H_
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#define TEST_TESTSUPPORT_IVF_VIDEO_FRAME_GENERATOR_H_
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#include <memory>
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#include <optional>
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#include <string>
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#include "absl/strings/string_view.h"
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#include "api/environment/environment.h"
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#include "api/sequence_checker.h"
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#include "api/test/frame_generator_interface.h"
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#include "api/video/video_codec_type.h"
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#include "api/video/video_frame.h"
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#include "api/video_codecs/video_decoder.h"
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#include "modules/video_coding/utility/ivf_file_reader.h"
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#include "rtc_base/event.h"
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#include "rtc_base/synchronization/mutex.h"
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namespace webrtc {
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namespace test {
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// All methods except constructor must be used from the same thread.
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class IvfVideoFrameGenerator : public FrameGeneratorInterface {
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public:
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// Allow to specify a `fps_hint` in case the fps of the video is known.
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IvfVideoFrameGenerator(const Environment& env,
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absl::string_view file_name,
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std::optional<int> fps_hint);
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~IvfVideoFrameGenerator() override;
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VideoFrameData NextFrame() override;
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void SkipNextFrame() override;
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void ChangeResolution(size_t width, size_t height) override;
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Resolution GetResolution() const override;
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std::optional<int> fps() const override { return fps_hint_; }
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private:
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class DecodedCallback : public DecodedImageCallback {
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public:
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explicit DecodedCallback(IvfVideoFrameGenerator* reader)
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: reader_(reader) {}
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int32_t Decoded(VideoFrame& decoded_image) override;
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int32_t Decoded(VideoFrame& decoded_image, int64_t decode_time_ms) override;
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void Decoded(VideoFrame& decoded_image,
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std::optional<int32_t> decode_time_ms,
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std::optional<uint8_t> qp) override;
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private:
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IvfVideoFrameGenerator* const reader_;
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};
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void OnFrameDecoded(const VideoFrame& decoded_frame);
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DecodedCallback callback_;
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std::unique_ptr<IvfFileReader> file_reader_;
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std::unique_ptr<VideoDecoder> video_decoder_;
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// Resolution of IVF. Initially readed from IVF header and then set to
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// resolution of decoded frame.
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Resolution original_resolution_;
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// Resolution of output frames. When set, the decoded frames scaled to
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// `output_resolution_`. Otherwise the decoded resolution, which may vary from
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// frame to frame, is preserved.
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std::optional<Resolution> output_resolution_;
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std::optional<int> fps_hint_;
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// This lock is used to ensure that all API method will be called
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// sequentially. It is required because we need to ensure that generator
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// won't be destroyed while it is reading the next frame on another thread,
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// because it will cause SIGSEGV when decoder callback will be invoked.
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//
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// FrameGenerator is injected into PeerConnection via some scoped_ref object
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// and it can happen that the last pointer will be destroyed on the different
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// thread comparing to the one from which frames were read.
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Mutex lock_;
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// This lock is used to sync between sending and receiving frame from decoder.
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// We can't reuse `lock_` because then generator can be destroyed between
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// frame was sent to decoder and decoder callback was invoked.
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Mutex frame_decode_lock_;
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rtc::Event next_frame_decoded_;
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std::optional<VideoFrame> next_frame_ RTC_GUARDED_BY(frame_decode_lock_);
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};
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} // namespace test
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} // namespace webrtc
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#endif // TEST_TESTSUPPORT_IVF_VIDEO_FRAME_GENERATOR_H_
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