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Diffstat (limited to 'third_party/libwebrtc/modules/rtp_rtcp/source/rtp_generic_frame_descriptor.h')
-rw-r--r-- | third_party/libwebrtc/modules/rtp_rtcp/source/rtp_generic_frame_descriptor.h | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/third_party/libwebrtc/modules/rtp_rtcp/source/rtp_generic_frame_descriptor.h b/third_party/libwebrtc/modules/rtp_rtcp/source/rtp_generic_frame_descriptor.h new file mode 100644 index 0000000000..8760acca2a --- /dev/null +++ b/third_party/libwebrtc/modules/rtp_rtcp/source/rtp_generic_frame_descriptor.h @@ -0,0 +1,79 @@ +/* + * Copyright (c) 2018 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_RTP_RTCP_SOURCE_RTP_GENERIC_FRAME_DESCRIPTOR_H_ +#define MODULES_RTP_RTCP_SOURCE_RTP_GENERIC_FRAME_DESCRIPTOR_H_ + +#include <stddef.h> +#include <stdint.h> + +#include <vector> + +#include "absl/types/optional.h" +#include "api/array_view.h" + +namespace webrtc { + +class RtpGenericFrameDescriptorExtension; + +// Data to put on the wire for FrameDescriptor rtp header extension. +class RtpGenericFrameDescriptor { + public: + static constexpr int kMaxNumFrameDependencies = 8; + static constexpr int kMaxTemporalLayers = 8; + static constexpr int kMaxSpatialLayers = 8; + + RtpGenericFrameDescriptor(); + RtpGenericFrameDescriptor(const RtpGenericFrameDescriptor&); + ~RtpGenericFrameDescriptor(); + + bool FirstPacketInSubFrame() const { return beginning_of_subframe_; } + void SetFirstPacketInSubFrame(bool first) { beginning_of_subframe_ = first; } + bool LastPacketInSubFrame() const { return end_of_subframe_; } + void SetLastPacketInSubFrame(bool last) { end_of_subframe_ = last; } + + // Properties below undefined if !FirstPacketInSubFrame() + // Valid range for temporal layer: [0, 7] + int TemporalLayer() const; + void SetTemporalLayer(int temporal_layer); + + // Frame might by used, possible indirectly, for spatial layer sid iff + // (bitmask & (1 << sid)) != 0 + int SpatialLayer() const; + uint8_t SpatialLayersBitmask() const; + void SetSpatialLayersBitmask(uint8_t spatial_layers); + + int Width() const { return width_; } + int Height() const { return height_; } + void SetResolution(int width, int height); + + uint16_t FrameId() const; + void SetFrameId(uint16_t frame_id); + + rtc::ArrayView<const uint16_t> FrameDependenciesDiffs() const; + void ClearFrameDependencies() { num_frame_deps_ = 0; } + // Returns false on failure, i.e. number of dependencies is too large. + bool AddFrameDependencyDiff(uint16_t fdiff); + + private: + bool beginning_of_subframe_ = false; + bool end_of_subframe_ = false; + + uint16_t frame_id_ = 0; + uint8_t spatial_layers_ = 1; + uint8_t temporal_layer_ = 0; + size_t num_frame_deps_ = 0; + uint16_t frame_deps_id_diffs_[kMaxNumFrameDependencies]; + int width_ = 0; + int height_ = 0; +}; + +} // namespace webrtc + +#endif // MODULES_RTP_RTCP_SOURCE_RTP_GENERIC_FRAME_DESCRIPTOR_H_ |