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Diffstat (limited to 'third_party/libwebrtc/modules/video_coding/timing/inter_frame_delay.h')
-rw-r--r-- | third_party/libwebrtc/modules/video_coding/timing/inter_frame_delay.h | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/third_party/libwebrtc/modules/video_coding/timing/inter_frame_delay.h b/third_party/libwebrtc/modules/video_coding/timing/inter_frame_delay.h new file mode 100644 index 0000000000..03b5f78cc1 --- /dev/null +++ b/third_party/libwebrtc/modules/video_coding/timing/inter_frame_delay.h @@ -0,0 +1,46 @@ +/* + * Copyright (c) 2011 The WebRTC project authors. All Rights Reserved. + * + * Use of this source code is governed by a BSD-style license + * that can be found in the LICENSE file in the root of the source + * tree. An additional intellectual property rights grant can be found + * in the file PATENTS. All contributing project authors may + * be found in the AUTHORS file in the root of the source tree. + */ + +#ifndef MODULES_VIDEO_CODING_TIMING_INTER_FRAME_DELAY_H_ +#define MODULES_VIDEO_CODING_TIMING_INTER_FRAME_DELAY_H_ + +#include <stdint.h> + +#include "absl/types/optional.h" +#include "api/units/time_delta.h" +#include "api/units/timestamp.h" +#include "rtc_base/numerics/sequence_number_unwrapper.h" + +namespace webrtc { + +class InterFrameDelay { + public: + InterFrameDelay(); + + // Resets the estimate. Zeros are given as parameters. + void Reset(); + + // Calculates the delay of a frame with the given timestamp. + // This method is called when the frame is complete. + absl::optional<TimeDelta> CalculateDelay(uint32_t rtp_timestamp, + Timestamp now); + + private: + // The previous rtp timestamp passed to the delay estimate + int64_t prev_rtp_timestamp_unwrapped_; + RtpTimestampUnwrapper unwrapper_; + + // The previous wall clock timestamp used by the delay estimate + absl::optional<Timestamp> prev_wall_clock_; +}; + +} // namespace webrtc + +#endif // MODULES_VIDEO_CODING_TIMING_INTER_FRAME_DELAY_H_ |