| /* |
| * Copyright (c) 2014 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_VIDEO_FRAME_H_ |
| #define WEBRTC_VIDEO_FRAME_H_ |
| |
| #include "webrtc/base/scoped_ref_ptr.h" |
| #include "webrtc/base/timeutils.h" |
| #include "webrtc/common_types.h" |
| #include "webrtc/common_video/include/video_frame_buffer.h" |
| #include "webrtc/common_video/rotation.h" |
| #include "webrtc/typedefs.h" |
| |
| namespace webrtc { |
| |
| // TODO(nisse): This class duplicates cricket::VideoFrame. There's |
| // ongoing work to merge the classes. See |
| // https://bugs.chromium.org/p/webrtc/issues/detail?id=5682. |
| class VideoFrame { |
| public: |
| // TODO(nisse): Deprecated. Using the default constructor violates the |
| // reasonable assumption that video_frame_buffer() returns a valid buffer. |
| VideoFrame(); |
| |
| // TODO(nisse): This constructor is consistent with |
| // cricket::WebRtcVideoFrame. After the class |
| // cricket::WebRtcVideoFrame and its baseclass cricket::VideoFrame |
| // are deleted, we should consider whether or not we want to stick |
| // to this style and deprecate the other constructors. |
| VideoFrame(const rtc::scoped_refptr<VideoFrameBuffer>& buffer, |
| webrtc::VideoRotation rotation, |
| int64_t timestamp_us); |
| |
| // Preferred constructor. |
| VideoFrame(const rtc::scoped_refptr<VideoFrameBuffer>& buffer, |
| uint32_t timestamp, |
| int64_t render_time_ms, |
| VideoRotation rotation); |
| |
| // CreateFrame: Sets the frame's members and buffers. If required size is |
| // bigger than allocated one, new buffers of adequate size will be allocated. |
| |
| // TODO(nisse): Deprecated. Should be deleted in the cricket::VideoFrame and |
| // webrtc::VideoFrame merge. Instead, create a VideoFrameBuffer and pass to |
| // the constructor. E.g, use I420Buffer::Copy(WrappedI420Buffer(...)). |
| void CreateFrame(const uint8_t* buffer_y, |
| const uint8_t* buffer_u, |
| const uint8_t* buffer_v, |
| int width, |
| int height, |
| int stride_y, |
| int stride_u, |
| int stride_v, |
| VideoRotation rotation); |
| |
| // CreateFrame: Sets the frame's members and buffers. If required size is |
| // bigger than allocated one, new buffers of adequate size will be allocated. |
| // |buffer| must be a packed I420 buffer. |
| |
| // TODO(nisse): Deprecated, see above method for advice. |
| void CreateFrame(const uint8_t* buffer, |
| int width, |
| int height, |
| VideoRotation rotation); |
| |
| // Deep copy frame: If required size is bigger than allocated one, new |
| // buffers of adequate size will be allocated. |
| // TODO(nisse): Should be deleted in the cricket::VideoFrame and |
| // webrtc::VideoFrame merge. Instead, use I420Buffer::Copy to make a copy of |
| // the pixel data, and use the constructor to wrap it into a VideoFrame. |
| void CopyFrame(const VideoFrame& videoFrame); |
| |
| // Creates a shallow copy of |videoFrame|, i.e, the this object will retain a |
| // reference to the video buffer also retained by |videoFrame|. |
| // TODO(nisse): Deprecated. Should be deleted in the cricket::VideoFrame and |
| // webrtc::VideoFrame merge. Instead, pass video_frame_buffer() and timestamps |
| // to the constructor. |
| void ShallowCopy(const VideoFrame& videoFrame); |
| |
| // Get frame width. |
| int width() const; |
| |
| // Get frame height. |
| int height() const; |
| |
| // System monotonic clock, same timebase as rtc::TimeMicros(). |
| int64_t timestamp_us() const { return timestamp_us_; } |
| void set_timestamp_us(int64_t timestamp_us) { |
| timestamp_us_ = timestamp_us; |
| } |
| |
| // TODO(nisse): After the cricket::VideoFrame and webrtc::VideoFrame |
| // merge, timestamps other than timestamp_us will likely be |
| // deprecated. |
| |
| // Set frame timestamp (90kHz). |
| void set_timestamp(uint32_t timestamp) { timestamp_rtp_ = timestamp; } |
| |
| // Get frame timestamp (90kHz). |
| uint32_t timestamp() const { return timestamp_rtp_; } |
| |
| // Set capture ntp time in milliseconds. |
| void set_ntp_time_ms(int64_t ntp_time_ms) { |
| ntp_time_ms_ = ntp_time_ms; |
| } |
| |
| // Get capture ntp time in milliseconds. |
| int64_t ntp_time_ms() const { return ntp_time_ms_; } |
| |
| // Naming convention for Coordination of Video Orientation. Please see |
| // http://www.etsi.org/deliver/etsi_ts/126100_126199/126114/12.07.00_60/ts_126114v120700p.pdf |
| // |
| // "pending rotation" or "pending" = a frame that has a VideoRotation > 0. |
| // |
| // "not pending" = a frame that has a VideoRotation == 0. |
| // |
| // "apply rotation" = modify a frame from being "pending" to being "not |
| // pending" rotation (a no-op for "unrotated"). |
| // |
| VideoRotation rotation() const { return rotation_; } |
| void set_rotation(VideoRotation rotation) { |
| rotation_ = rotation; |
| } |
| |
| // Set render time in milliseconds. |
| void set_render_time_ms(int64_t render_time_ms) { |
| set_timestamp_us(render_time_ms * rtc::kNumMicrosecsPerMillisec);; |
| } |
| |
| // Get render time in milliseconds. |
| int64_t render_time_ms() const { |
| return timestamp_us() / rtc::kNumMicrosecsPerMillisec; |
| } |
| |
| // Return true if and only if video_frame_buffer() is null. Which is possible |
| // only if the object was default-constructed. |
| // TODO(nisse): Deprecated. Should be deleted in the cricket::VideoFrame and |
| // webrtc::VideoFrame merge. The intention is that video_frame_buffer() never |
| // should return nullptr. To handle potentially uninitialized or non-existent |
| // frames, consider using rtc::Optional. Otherwise, IsZeroSize() can be |
| // replaced by video_frame_buffer() == nullptr. |
| bool IsZeroSize() const; |
| |
| // Return the underlying buffer. Never nullptr for a properly |
| // initialized VideoFrame. |
| // Creating a new reference breaks the HasOneRef and IsMutable |
| // logic. So return a const ref to our reference. |
| const rtc::scoped_refptr<webrtc::VideoFrameBuffer>& video_frame_buffer() |
| const; |
| |
| // Return true if the frame is stored in a texture. |
| bool is_texture() const { |
| return video_frame_buffer() && |
| video_frame_buffer()->native_handle() != nullptr; |
| } |
| |
| private: |
| // An opaque reference counted handle that stores the pixel data. |
| rtc::scoped_refptr<webrtc::VideoFrameBuffer> video_frame_buffer_; |
| uint32_t timestamp_rtp_; |
| int64_t ntp_time_ms_; |
| int64_t timestamp_us_; |
| VideoRotation rotation_; |
| }; |
| |
| |
| // TODO(pbos): Rename EncodedFrame and reformat this class' members. |
| class EncodedImage { |
| public: |
| static const size_t kBufferPaddingBytesH264; |
| |
| // Some decoders require encoded image buffers to be padded with a small |
| // number of additional bytes (due to over-reading byte readers). |
| static size_t GetBufferPaddingBytes(VideoCodecType codec_type); |
| |
| EncodedImage() : EncodedImage(nullptr, 0, 0) {} |
| |
| EncodedImage(uint8_t* buffer, size_t length, size_t size) |
| : _buffer(buffer), _length(length), _size(size) {} |
| |
| struct AdaptReason { |
| AdaptReason() |
| : quality_resolution_downscales(-1), |
| bw_resolutions_disabled(-1) {} |
| |
| int quality_resolution_downscales; // Number of times this frame is down |
| // scaled in resolution due to quality. |
| // Or -1 if information is not provided. |
| int bw_resolutions_disabled; // Number of resolutions that are not sent |
| // due to bandwidth for this frame. |
| // Or -1 if information is not provided. |
| }; |
| uint32_t _encodedWidth = 0; |
| uint32_t _encodedHeight = 0; |
| uint32_t _timeStamp = 0; |
| // NTP time of the capture time in local timebase in milliseconds. |
| int64_t ntp_time_ms_ = 0; |
| int64_t capture_time_ms_ = 0; |
| FrameType _frameType = kVideoFrameDelta; |
| uint8_t* _buffer; |
| size_t _length; |
| size_t _size; |
| VideoRotation rotation_ = kVideoRotation_0; |
| bool _completeFrame = false; |
| AdaptReason adapt_reason_; |
| int qp_ = -1; // Quantizer value. |
| |
| // When an application indicates non-zero values here, it is taken as an |
| // indication that all future frames will be constrained with those limits |
| // until the application indicates a change again. |
| PlayoutDelay playout_delay_ = {-1, -1}; |
| }; |
| |
| } // namespace webrtc |
| #endif // WEBRTC_VIDEO_FRAME_H_ |