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| 1 /* | |
| 2 * libjingle | |
| 3 * Copyright 2004 Google Inc. | |
| 4 * | |
| 5 * Redistribution and use in source and binary forms, with or without | |
| 6 * modification, are permitted provided that the following conditions are met: | |
| 7 * | |
| 8 * 1. Redistributions of source code must retain the above copyright notice, | |
| 9 * this list of conditions and the following disclaimer. | |
| 10 * 2. Redistributions in binary form must reproduce the above copyright notice, | |
| 11 * this list of conditions and the following disclaimer in the documentation | |
| 12 * and/or other materials provided with the distribution. | |
| 13 * 3. The name of the author may not be used to endorse or promote products | |
| 14 * derived from this software without specific prior written permission. | |
| 15 * | |
| 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED | |
| 17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF | |
| 18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO | |
| 19 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
| 21 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; | |
| 22 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, | |
| 23 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR | |
| 24 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF | |
| 25 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 26 */ | |
| 27 | |
| 28 #ifndef TALK_MEDIA_BASE_VIDEOFRAME_H_ | |
| 29 #define TALK_MEDIA_BASE_VIDEOFRAME_H_ | |
| 30 | |
| 31 #include "webrtc/base/basictypes.h" | |
| 32 #include "webrtc/base/stream.h" | |
| 33 #include "webrtc/common_video/include/video_frame_buffer.h" | |
| 34 #include "webrtc/common_video/rotation.h" | |
| 35 | |
| 36 namespace cricket { | |
| 37 | |
| 38 // Represents a YUV420 (a.k.a. I420) video frame. | |
| 39 class VideoFrame { | |
| 40 public: | |
| 41 VideoFrame() {} | |
| 42 virtual ~VideoFrame() {} | |
| 43 | |
| 44 virtual bool InitToBlack(int w, int h, int64_t time_stamp) = 0; | |
| 45 | |
| 46 // Creates a frame from a raw sample with FourCC |format| and size |w| x |h|. | |
| 47 // |h| can be negative indicating a vertically flipped image. | |
| 48 // |dw| is destination width; can be less than |w| if cropping is desired. | |
| 49 // |dh| is destination height, like |dw|, but must be a positive number. | |
| 50 // Returns whether the function succeeded or failed. | |
| 51 | |
| 52 virtual bool Reset(uint32_t fourcc, | |
| 53 int w, | |
| 54 int h, | |
| 55 int dw, | |
| 56 int dh, | |
| 57 uint8_t* sample, | |
| 58 size_t sample_size, | |
| 59 int64_t time_stamp, | |
| 60 webrtc::VideoRotation rotation, | |
| 61 bool apply_rotation) = 0; | |
| 62 | |
| 63 // Basic accessors. | |
| 64 // Note this is the width and height without rotation applied. | |
| 65 virtual size_t GetWidth() const = 0; | |
| 66 virtual size_t GetHeight() const = 0; | |
| 67 | |
| 68 size_t GetChromaWidth() const { return (GetWidth() + 1) / 2; } | |
| 69 size_t GetChromaHeight() const { return (GetHeight() + 1) / 2; } | |
| 70 size_t GetChromaSize() const { return GetUPitch() * GetChromaHeight(); } | |
| 71 // These can return NULL if the object is not backed by a buffer. | |
| 72 virtual const uint8_t* GetYPlane() const = 0; | |
| 73 virtual const uint8_t* GetUPlane() const = 0; | |
| 74 virtual const uint8_t* GetVPlane() const = 0; | |
| 75 virtual uint8_t* GetYPlane() = 0; | |
| 76 virtual uint8_t* GetUPlane() = 0; | |
| 77 virtual uint8_t* GetVPlane() = 0; | |
| 78 | |
| 79 virtual int32_t GetYPitch() const = 0; | |
| 80 virtual int32_t GetUPitch() const = 0; | |
| 81 virtual int32_t GetVPitch() const = 0; | |
| 82 | |
| 83 // Returns the handle of the underlying video frame. This is used when the | |
| 84 // frame is backed by a texture. The object should be destroyed when it is no | |
| 85 // longer in use, so the underlying resource can be freed. | |
| 86 virtual void* GetNativeHandle() const = 0; | |
| 87 | |
| 88 // Returns the underlying video frame buffer. This function is ok to call | |
| 89 // multiple times, but the returned object will refer to the same memory. | |
| 90 virtual rtc::scoped_refptr<webrtc::VideoFrameBuffer> GetVideoFrameBuffer() | |
| 91 const = 0; | |
| 92 | |
| 93 virtual int64_t GetTimeStamp() const = 0; | |
| 94 virtual void SetTimeStamp(int64_t time_stamp) = 0; | |
| 95 | |
| 96 // Indicates the rotation angle in degrees. | |
| 97 // TODO(guoweis): Remove this function, rename GetVideoRotation and remove the | |
| 98 // skeleton implementation of GetRotation once chrome is updated. | |
| 99 virtual int GetRotation() const { return GetVideoRotation(); } | |
| 100 virtual webrtc::VideoRotation GetVideoRotation() const { | |
| 101 return webrtc::kVideoRotation_0; | |
| 102 } | |
| 103 | |
| 104 // Make a shallow copy of the frame. The frame buffer itself is not copied. | |
| 105 // Both the current and new VideoFrame will share a single reference-counted | |
| 106 // frame buffer. | |
| 107 virtual VideoFrame *Copy() const = 0; | |
| 108 | |
| 109 // Since VideoFrame supports shallow copy and the internal frame buffer might | |
| 110 // be shared, this function can be used to check exclusive ownership. | |
| 111 virtual bool IsExclusive() const = 0; | |
| 112 | |
| 113 // In case VideoFrame needs exclusive access of the frame buffer, user can | |
| 114 // call MakeExclusive() to make sure the frame buffer is exclusively | |
| 115 // accessible to the current object. This might mean a deep copy of the frame | |
| 116 // buffer if it is currently shared by other objects. | |
| 117 virtual bool MakeExclusive() = 0; | |
| 118 | |
| 119 // Writes the frame into the given frame buffer, provided that it is of | |
| 120 // sufficient size. Returns the frame's actual size, regardless of whether | |
| 121 // it was written or not (like snprintf). If there is insufficient space, | |
| 122 // nothing is written. | |
| 123 virtual size_t CopyToBuffer(uint8_t* buffer, size_t size) const; | |
| 124 | |
| 125 // Writes the frame into the given planes, stretched to the given width and | |
| 126 // height. The parameter "interpolate" controls whether to interpolate or just | |
| 127 // take the nearest-point. The parameter "crop" controls whether to crop this | |
| 128 // frame to the aspect ratio of the given dimensions before stretching. | |
| 129 virtual bool CopyToPlanes(uint8_t* dst_y, | |
| 130 uint8_t* dst_u, | |
| 131 uint8_t* dst_v, | |
| 132 int32_t dst_pitch_y, | |
| 133 int32_t dst_pitch_u, | |
| 134 int32_t dst_pitch_v) const; | |
| 135 | |
| 136 // Writes the frame into the target VideoFrame. | |
| 137 virtual void CopyToFrame(VideoFrame* target) const; | |
| 138 | |
| 139 // Return a copy of frame which has its pending rotation applied. The | |
| 140 // ownership of the returned frame is held by this frame. | |
| 141 virtual const VideoFrame* GetCopyWithRotationApplied() const = 0; | |
| 142 | |
| 143 // Writes the frame into the given stream and returns the StreamResult. | |
| 144 // See webrtc/base/stream.h for a description of StreamResult and error. | |
| 145 // Error may be NULL. If a non-success value is returned from | |
| 146 // StreamInterface::Write(), we immediately return with that value. | |
| 147 virtual rtc::StreamResult Write(rtc::StreamInterface* stream, | |
| 148 int* error) const; | |
| 149 | |
| 150 // Converts the I420 data to RGB of a certain type such as ARGB and ABGR. | |
| 151 // Returns the frame's actual size, regardless of whether it was written or | |
| 152 // not (like snprintf). Parameters size and stride_rgb are in units of bytes. | |
| 153 // If there is insufficient space, nothing is written. | |
| 154 virtual size_t ConvertToRgbBuffer(uint32_t to_fourcc, | |
| 155 uint8_t* buffer, | |
| 156 size_t size, | |
| 157 int stride_rgb) const; | |
| 158 | |
| 159 // Writes the frame into the given planes, stretched to the given width and | |
| 160 // height. The parameter "interpolate" controls whether to interpolate or just | |
| 161 // take the nearest-point. The parameter "crop" controls whether to crop this | |
| 162 // frame to the aspect ratio of the given dimensions before stretching. | |
| 163 virtual void StretchToPlanes(uint8_t* y, | |
| 164 uint8_t* u, | |
| 165 uint8_t* v, | |
| 166 int32_t pitchY, | |
| 167 int32_t pitchU, | |
| 168 int32_t pitchV, | |
| 169 size_t width, | |
| 170 size_t height, | |
| 171 bool interpolate, | |
| 172 bool crop) const; | |
| 173 | |
| 174 // Writes the frame into the target VideoFrame, stretched to the size of that | |
| 175 // frame. The parameter "interpolate" controls whether to interpolate or just | |
| 176 // take the nearest-point. The parameter "crop" controls whether to crop this | |
| 177 // frame to the aspect ratio of the target frame before stretching. | |
| 178 virtual void StretchToFrame(VideoFrame *target, bool interpolate, | |
| 179 bool crop) const; | |
| 180 | |
| 181 // Stretches the frame to the given size, creating a new VideoFrame object to | |
| 182 // hold it. The parameter "interpolate" controls whether to interpolate or | |
| 183 // just take the nearest-point. The parameter "crop" controls whether to crop | |
| 184 // this frame to the aspect ratio of the given dimensions before stretching. | |
| 185 virtual VideoFrame *Stretch(size_t w, size_t h, bool interpolate, | |
| 186 bool crop) const; | |
| 187 | |
| 188 // Sets the video frame to black. | |
| 189 virtual bool SetToBlack(); | |
| 190 | |
| 191 // Tests if sample is valid. Returns true if valid. | |
| 192 static bool Validate(uint32_t fourcc, | |
| 193 int w, | |
| 194 int h, | |
| 195 const uint8_t* sample, | |
| 196 size_t sample_size); | |
| 197 | |
| 198 // Size of an I420 image of given dimensions when stored as a frame buffer. | |
| 199 static size_t SizeOf(size_t w, size_t h) { | |
| 200 return w * h + ((w + 1) / 2) * ((h + 1) / 2) * 2; | |
| 201 } | |
| 202 | |
| 203 protected: | |
| 204 // Creates an empty frame. | |
| 205 virtual VideoFrame *CreateEmptyFrame(int w, int h, | |
| 206 int64_t time_stamp) const = 0; | |
| 207 virtual void SetRotation(webrtc::VideoRotation rotation) = 0; | |
| 208 }; | |
| 209 | |
| 210 } // namespace cricket | |
| 211 | |
| 212 #endif // TALK_MEDIA_BASE_VIDEOFRAME_H_ | |
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Chromium Code Reviews
Issue 1587193006:
Move talk/media to webrtc/media (Closed)
Base URL: https://chromium.googlesource.com/external/webrtc.git@master