92 lines
3.1 KiB
C
92 lines
3.1 KiB
C
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/*
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* Copyright (c) 2016 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 API_VIDEO_ENCODED_FRAME_H_
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#define API_VIDEO_ENCODED_FRAME_H_
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#include <stddef.h>
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#include <stdint.h>
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#include "modules/video_coding/encoded_frame.h"
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namespace webrtc {
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namespace video_coding {
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// NOTE: This class is still under development and may change without notice.
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struct VideoLayerFrameId {
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// TODO(philipel): The default ctor is currently used internaly, but have a
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// look if we can remove it.
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VideoLayerFrameId() : picture_id(-1), spatial_layer(0) {}
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VideoLayerFrameId(int64_t picture_id, uint8_t spatial_layer)
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: picture_id(picture_id), spatial_layer(spatial_layer) {}
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bool operator==(const VideoLayerFrameId& rhs) const {
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return picture_id == rhs.picture_id && spatial_layer == rhs.spatial_layer;
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}
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bool operator!=(const VideoLayerFrameId& rhs) const {
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return !(*this == rhs);
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}
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bool operator<(const VideoLayerFrameId& rhs) const {
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if (picture_id == rhs.picture_id)
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return spatial_layer < rhs.spatial_layer;
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return picture_id < rhs.picture_id;
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}
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bool operator<=(const VideoLayerFrameId& rhs) const { return !(rhs < *this); }
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bool operator>(const VideoLayerFrameId& rhs) const { return rhs < *this; }
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bool operator>=(const VideoLayerFrameId& rhs) const { return rhs <= *this; }
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int64_t picture_id;
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uint8_t spatial_layer;
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};
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// TODO(philipel): Remove webrtc::VCMEncodedFrame inheritance.
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// TODO(philipel): Move transport specific info out of EncodedFrame.
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// NOTE: This class is still under development and may change without notice.
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class EncodedFrame : public webrtc::VCMEncodedFrame {
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public:
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static const uint8_t kMaxFrameReferences = 5;
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EncodedFrame() = default;
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EncodedFrame(const EncodedFrame&) = default;
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virtual ~EncodedFrame() {}
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// When this frame was received.
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virtual int64_t ReceivedTime() const = 0;
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// When this frame should be rendered.
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virtual int64_t RenderTime() const = 0;
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// This information is currently needed by the timing calculation class.
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// TODO(philipel): Remove this function when a new timing class has
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// been implemented.
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virtual bool delayed_by_retransmission() const;
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bool is_keyframe() const { return num_references == 0; }
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VideoLayerFrameId id;
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// TODO(philipel): Add simple modify/access functions to prevent adding too
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// many |references|.
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size_t num_references = 0;
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int64_t references[kMaxFrameReferences];
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bool inter_layer_predicted = false;
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// Is this subframe the last one in the superframe (In RTP stream that would
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// mean that the last packet has a marker bit set).
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bool is_last_spatial_layer = true;
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};
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} // namespace video_coding
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} // namespace webrtc
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#endif // API_VIDEO_ENCODED_FRAME_H_
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