17deeb47ed
Since all FrameObjects have a reference to its PacketBuffer and since the PacketBuffer can be thrown away at any moment the PacketBuffer has to be ref counted in order to avoid FrameObjects dereferencing a potentially destroyed object. BUG=webrtc:5514 R=danilchap@webrtc.org, mflodman@webrtc.org, stefan@webrtc.org Review URL: https://codereview.webrtc.org/2199133004 . Cr-Commit-Position: refs/heads/master@{#13725}
95 lines
2.7 KiB
C++
95 lines
2.7 KiB
C++
/*
|
|
* Copyright (c) 2016 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 WEBRTC_MODULES_VIDEO_CODING_FRAME_OBJECT_H_
|
|
#define WEBRTC_MODULES_VIDEO_CODING_FRAME_OBJECT_H_
|
|
|
|
#include "webrtc/common_types.h"
|
|
#include "webrtc/modules/include/module_common_types.h"
|
|
#include "webrtc/modules/video_coding/encoded_frame.h"
|
|
|
|
namespace webrtc {
|
|
namespace video_coding {
|
|
|
|
class FrameObject : public webrtc::VCMEncodedFrame {
|
|
public:
|
|
static const uint8_t kMaxFrameReferences = 5;
|
|
|
|
FrameObject();
|
|
virtual ~FrameObject() {}
|
|
|
|
virtual bool GetBitstream(uint8_t* destination) const = 0;
|
|
|
|
// The capture timestamp of this frame.
|
|
virtual uint32_t Timestamp() const = 0;
|
|
|
|
// When this frame was received.
|
|
virtual int64_t ReceivedTime() const = 0;
|
|
|
|
// When this frame should be rendered.
|
|
virtual int64_t RenderTime() const = 0;
|
|
|
|
|
|
// The tuple (|picture_id|, |spatial_layer|) uniquely identifies a frame
|
|
// object. For codec types that don't necessarily have picture ids they
|
|
// have to be constructed from the header data relevant to that codec.
|
|
uint16_t picture_id;
|
|
uint8_t spatial_layer;
|
|
uint32_t timestamp;
|
|
|
|
size_t num_references;
|
|
uint16_t references[kMaxFrameReferences];
|
|
bool inter_layer_predicted;
|
|
|
|
size_t size;
|
|
};
|
|
|
|
class PacketBuffer;
|
|
|
|
class RtpFrameObject : public FrameObject {
|
|
public:
|
|
RtpFrameObject(PacketBuffer* packet_buffer,
|
|
uint16_t first_seq_num,
|
|
uint16_t last_seq_num,
|
|
size_t frame_size,
|
|
int times_nacked,
|
|
int64_t received_time);
|
|
|
|
~RtpFrameObject();
|
|
uint16_t first_seq_num() const;
|
|
uint16_t last_seq_num() const;
|
|
int times_nacked() const;
|
|
enum FrameType frame_type() const;
|
|
VideoCodecType codec_type() const;
|
|
bool GetBitstream(uint8_t* destination) const override;
|
|
uint32_t Timestamp() const override;
|
|
int64_t ReceivedTime() const override;
|
|
int64_t RenderTime() const override;
|
|
RTPVideoTypeHeader* GetCodecHeader() const;
|
|
|
|
private:
|
|
rtc::scoped_refptr<PacketBuffer> packet_buffer_;
|
|
enum FrameType frame_type_;
|
|
VideoCodecType codec_type_;
|
|
uint16_t first_seq_num_;
|
|
uint16_t last_seq_num_;
|
|
uint32_t timestamp_;
|
|
int64_t received_time_;
|
|
|
|
// Equal to times nacked of the packet with the highet times nacked
|
|
// belonging to this frame.
|
|
int times_nacked_;
|
|
};
|
|
|
|
} // namespace video_coding
|
|
} // namespace webrtc
|
|
|
|
#endif // WEBRTC_MODULES_VIDEO_CODING_FRAME_OBJECT_H_
|