| /* |
| * libjingle |
| * Copyright 2011 Google Inc. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright notice, |
| * this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright notice, |
| * this list of conditions and the following disclaimer in the documentation |
| * and/or other materials provided with the distribution. |
| * 3. The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
| * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
| * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
| * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
| * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR |
| * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF |
| * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include "talk/media/webrtc/webrtcvideoframe.h" |
| |
| #include "libyuv/convert.h" |
| #include "libyuv/convert_from.h" |
| #include "libyuv/planar_functions.h" |
| #include "talk/base/logging.h" |
| #include "talk/media/base/videocapturer.h" |
| #include "talk/media/base/videocommon.h" |
| |
| namespace cricket { |
| |
| // Class that wraps ownerhip semantics of a buffer passed to it. |
| // * Buffers passed using Attach() become owned by this FrameBuffer and will be |
| // destroyed on FrameBuffer destruction. |
| // * Buffers passed using Alias() are not owned and will not be destroyed on |
| // FrameBuffer destruction, The buffer then must outlive the FrameBuffer. |
| class WebRtcVideoFrame::FrameBuffer { |
| public: |
| FrameBuffer(); |
| explicit FrameBuffer(size_t length); |
| ~FrameBuffer(); |
| |
| void Attach(uint8* data, size_t length); |
| void Alias(uint8* data, size_t length); |
| uint8* data(); |
| size_t length() const; |
| |
| webrtc::VideoFrame* frame(); |
| const webrtc::VideoFrame* frame() const; |
| |
| private: |
| talk_base::scoped_ptr<uint8[]> owned_data_; |
| webrtc::VideoFrame video_frame_; |
| }; |
| |
| WebRtcVideoFrame::FrameBuffer::FrameBuffer() {} |
| |
| WebRtcVideoFrame::FrameBuffer::FrameBuffer(size_t length) { |
| uint8* buffer = new uint8[length]; |
| Attach(buffer, length); |
| } |
| |
| WebRtcVideoFrame::FrameBuffer::~FrameBuffer() { |
| // Make sure that |video_frame_| doesn't delete the buffer, as |owned_data_| |
| // will release the buffer if this FrameBuffer owns it. |
| uint8_t* new_memory = NULL; |
| uint32_t new_length = 0; |
| uint32_t new_size = 0; |
| video_frame_.Swap(new_memory, new_length, new_size); |
| } |
| |
| void WebRtcVideoFrame::FrameBuffer::Attach(uint8* data, size_t length) { |
| Alias(data, length); |
| owned_data_.reset(data); |
| } |
| |
| void WebRtcVideoFrame::FrameBuffer::Alias(uint8* data, size_t length) { |
| owned_data_.reset(); |
| uint8_t* new_memory = reinterpret_cast<uint8_t*>(data); |
| uint32_t new_length = static_cast<uint32_t>(length); |
| uint32_t new_size = static_cast<uint32_t>(length); |
| video_frame_.Swap(new_memory, new_length, new_size); |
| } |
| |
| uint8* WebRtcVideoFrame::FrameBuffer::data() { |
| return video_frame_.Buffer(); |
| } |
| |
| size_t WebRtcVideoFrame::FrameBuffer::length() const { |
| return video_frame_.Length(); |
| } |
| |
| webrtc::VideoFrame* WebRtcVideoFrame::FrameBuffer::frame() { |
| return &video_frame_; |
| } |
| |
| const webrtc::VideoFrame* WebRtcVideoFrame::FrameBuffer::frame() const { |
| return &video_frame_; |
| } |
| |
| WebRtcVideoFrame::WebRtcVideoFrame() |
| : video_buffer_(new RefCountedBuffer()), is_black_(false) {} |
| |
| WebRtcVideoFrame::~WebRtcVideoFrame() {} |
| |
| bool WebRtcVideoFrame::Init( |
| uint32 format, int w, int h, int dw, int dh, uint8* sample, |
| size_t sample_size, size_t pixel_width, size_t pixel_height, |
| int64 elapsed_time, int64 time_stamp, int rotation) { |
| return Reset(format, w, h, dw, dh, sample, sample_size, pixel_width, |
| pixel_height, elapsed_time, time_stamp, rotation); |
| } |
| |
| bool WebRtcVideoFrame::Init(const CapturedFrame* frame, int dw, int dh) { |
| return Reset(frame->fourcc, frame->width, frame->height, dw, dh, |
| static_cast<uint8*>(frame->data), frame->data_size, |
| frame->pixel_width, frame->pixel_height, frame->elapsed_time, |
| frame->time_stamp, frame->rotation); |
| } |
| |
| bool WebRtcVideoFrame::Alias(const CapturedFrame* frame, int dw, int dh) { |
| if (CanonicalFourCC(frame->fourcc) != FOURCC_I420 || frame->rotation != 0 || |
| frame->width != dw || frame->height != dh) { |
| // TODO(fbarchard): Enable aliasing of more formats. |
| return Init(frame, dw, dh); |
| } else { |
| Alias(static_cast<uint8*>(frame->data), |
| frame->data_size, |
| frame->width, |
| frame->height, |
| frame->pixel_width, |
| frame->pixel_height, |
| frame->elapsed_time, |
| frame->time_stamp, |
| frame->rotation); |
| return true; |
| } |
| } |
| |
| bool WebRtcVideoFrame::InitToBlack(int w, int h, size_t pixel_width, |
| size_t pixel_height, int64 elapsed_time, |
| int64 time_stamp) { |
| InitToEmptyBuffer(w, h, pixel_width, pixel_height, elapsed_time, time_stamp); |
| if (!is_black_) { |
| return SetToBlack(); |
| } |
| return true; |
| } |
| |
| void WebRtcVideoFrame::Alias( |
| uint8* buffer, size_t buffer_size, int w, int h, size_t pixel_width, |
| size_t pixel_height, int64 elapsed_time, int64 time_stamp, int rotation) { |
| talk_base::scoped_refptr<RefCountedBuffer> video_buffer( |
| new RefCountedBuffer()); |
| video_buffer->Alias(buffer, buffer_size); |
| Attach(video_buffer.get(), buffer_size, w, h, pixel_width, pixel_height, |
| elapsed_time, time_stamp, rotation); |
| } |
| |
| size_t WebRtcVideoFrame::GetWidth() const { return frame()->Width(); } |
| |
| size_t WebRtcVideoFrame::GetHeight() const { return frame()->Height(); } |
| |
| const uint8* WebRtcVideoFrame::GetYPlane() const { |
| uint8_t* buffer = frame()->Buffer(); |
| return buffer; |
| } |
| |
| const uint8* WebRtcVideoFrame::GetUPlane() const { |
| uint8_t* buffer = frame()->Buffer(); |
| if (buffer) { |
| buffer += (frame()->Width() * frame()->Height()); |
| } |
| return buffer; |
| } |
| |
| const uint8* WebRtcVideoFrame::GetVPlane() const { |
| uint8_t* buffer = frame()->Buffer(); |
| if (buffer) { |
| int uv_size = static_cast<int>(GetChromaSize()); |
| buffer += frame()->Width() * frame()->Height() + uv_size; |
| } |
| return buffer; |
| } |
| |
| uint8* WebRtcVideoFrame::GetYPlane() { |
| uint8_t* buffer = frame()->Buffer(); |
| return buffer; |
| } |
| |
| uint8* WebRtcVideoFrame::GetUPlane() { |
| uint8_t* buffer = frame()->Buffer(); |
| if (buffer) { |
| buffer += (frame()->Width() * frame()->Height()); |
| } |
| return buffer; |
| } |
| |
| uint8* WebRtcVideoFrame::GetVPlane() { |
| uint8_t* buffer = frame()->Buffer(); |
| if (buffer) { |
| int uv_size = static_cast<int>(GetChromaSize()); |
| buffer += frame()->Width() * frame()->Height() + uv_size; |
| } |
| return buffer; |
| } |
| |
| VideoFrame* WebRtcVideoFrame::Copy() const { |
| uint8* old_buffer = video_buffer_->data(); |
| if (!old_buffer) |
| return NULL; |
| size_t new_buffer_size = video_buffer_->length(); |
| |
| WebRtcVideoFrame* ret_val = new WebRtcVideoFrame(); |
| ret_val->Attach(video_buffer_.get(), new_buffer_size, frame()->Width(), |
| frame()->Height(), pixel_width_, pixel_height_, elapsed_time_, |
| time_stamp_, rotation_); |
| return ret_val; |
| } |
| |
| bool WebRtcVideoFrame::MakeExclusive() { |
| const size_t length = video_buffer_->length(); |
| RefCountedBuffer* exclusive_buffer = new RefCountedBuffer(length); |
| memcpy(exclusive_buffer->data(), video_buffer_->data(), length); |
| Attach(exclusive_buffer, length, frame()->Width(), frame()->Height(), |
| pixel_width_, pixel_height_, elapsed_time_, time_stamp_, rotation_); |
| return true; |
| } |
| |
| size_t WebRtcVideoFrame::CopyToBuffer(uint8* buffer, size_t size) const { |
| if (!frame()->Buffer()) { |
| return 0; |
| } |
| |
| size_t needed = frame()->Length(); |
| if (needed <= size) { |
| memcpy(buffer, frame()->Buffer(), needed); |
| } |
| return needed; |
| } |
| |
| // TODO(fbarchard): Refactor into base class and share with lmi |
| size_t WebRtcVideoFrame::ConvertToRgbBuffer(uint32 to_fourcc, uint8* buffer, |
| size_t size, int stride_rgb) const { |
| if (!frame()->Buffer()) { |
| return 0; |
| } |
| size_t width = frame()->Width(); |
| size_t height = frame()->Height(); |
| size_t needed = (stride_rgb >= 0 ? stride_rgb : -stride_rgb) * height; |
| if (size < needed) { |
| LOG(LS_WARNING) << "RGB buffer is not large enough"; |
| return needed; |
| } |
| |
| if (libyuv::ConvertFromI420(GetYPlane(), GetYPitch(), GetUPlane(), |
| GetUPitch(), GetVPlane(), GetVPitch(), buffer, |
| stride_rgb, |
| static_cast<int>(width), |
| static_cast<int>(height), |
| to_fourcc)) { |
| LOG(LS_WARNING) << "RGB type not supported: " << to_fourcc; |
| return 0; // 0 indicates error |
| } |
| return needed; |
| } |
| |
| void WebRtcVideoFrame::Attach( |
| RefCountedBuffer* video_buffer, size_t buffer_size, int w, int h, |
| size_t pixel_width, size_t pixel_height, int64 elapsed_time, |
| int64 time_stamp, int rotation) { |
| if (video_buffer_.get() == video_buffer) { |
| return; |
| } |
| is_black_ = false; |
| video_buffer_ = video_buffer; |
| frame()->SetWidth(w); |
| frame()->SetHeight(h); |
| pixel_width_ = pixel_width; |
| pixel_height_ = pixel_height; |
| elapsed_time_ = elapsed_time; |
| time_stamp_ = time_stamp; |
| rotation_ = rotation; |
| } |
| |
| webrtc::VideoFrame* WebRtcVideoFrame::frame() { |
| return video_buffer_->frame(); |
| } |
| |
| const webrtc::VideoFrame* WebRtcVideoFrame::frame() const { |
| return video_buffer_->frame(); |
| } |
| |
| bool WebRtcVideoFrame::Reset( |
| uint32 format, int w, int h, int dw, int dh, uint8* sample, |
| size_t sample_size, size_t pixel_width, size_t pixel_height, |
| int64 elapsed_time, int64 time_stamp, int rotation) { |
| if (!Validate(format, w, h, sample, sample_size)) { |
| return false; |
| } |
| // Translate aliases to standard enums (e.g., IYUV -> I420). |
| format = CanonicalFourCC(format); |
| |
| // Round display width and height down to multiple of 4, to avoid webrtc |
| // size calculation error on odd sizes. |
| // TODO(Ronghua): Remove this once the webrtc allocator is fixed. |
| dw = (dw > 4) ? (dw & ~3) : dw; |
| dh = (dh > 4) ? (dh & ~3) : dh; |
| |
| // Set up a new buffer. |
| // TODO(fbarchard): Support lazy allocation. |
| int new_width = dw; |
| int new_height = dh; |
| if (rotation == 90 || rotation == 270) { // If rotated swap width, height. |
| new_width = dh; |
| new_height = dw; |
| } |
| |
| size_t desired_size = SizeOf(new_width, new_height); |
| talk_base::scoped_refptr<RefCountedBuffer> video_buffer( |
| new RefCountedBuffer(desired_size)); |
| // Since the libyuv::ConvertToI420 will handle the rotation, so the |
| // new frame's rotation should always be 0. |
| Attach(video_buffer.get(), desired_size, new_width, new_height, pixel_width, |
| pixel_height, elapsed_time, time_stamp, 0); |
| |
| int horiz_crop = ((w - dw) / 2) & ~1; |
| // ARGB on Windows has negative height. |
| // The sample's layout in memory is normal, so just correct crop. |
| int vert_crop = ((abs(h) - dh) / 2) & ~1; |
| // Conversion functions expect negative height to flip the image. |
| int idh = (h < 0) ? -dh : dh; |
| uint8* y = GetYPlane(); |
| int y_stride = GetYPitch(); |
| uint8* u = GetUPlane(); |
| int u_stride = GetUPitch(); |
| uint8* v = GetVPlane(); |
| int v_stride = GetVPitch(); |
| int r = libyuv::ConvertToI420( |
| sample, sample_size, y, y_stride, u, u_stride, v, v_stride, horiz_crop, |
| vert_crop, w, h, dw, idh, static_cast<libyuv::RotationMode>(rotation), |
| format); |
| if (r) { |
| LOG(LS_ERROR) << "Error parsing format: " << GetFourccName(format) |
| << " return code : " << r; |
| return false; |
| } |
| return true; |
| } |
| |
| VideoFrame* WebRtcVideoFrame::CreateEmptyFrame( |
| int w, int h, size_t pixel_width, size_t pixel_height, int64 elapsed_time, |
| int64 time_stamp) const { |
| WebRtcVideoFrame* frame = new WebRtcVideoFrame(); |
| frame->InitToEmptyBuffer(w, h, pixel_width, pixel_height, elapsed_time, |
| time_stamp); |
| return frame; |
| } |
| |
| void WebRtcVideoFrame::InitToEmptyBuffer(int w, int h, size_t pixel_width, |
| size_t pixel_height, |
| int64 elapsed_time, int64 time_stamp) { |
| size_t buffer_size = VideoFrame::SizeOf(w, h); |
| talk_base::scoped_refptr<RefCountedBuffer> video_buffer( |
| new RefCountedBuffer(buffer_size)); |
| Attach(video_buffer.get(), buffer_size, w, h, pixel_width, pixel_height, |
| elapsed_time, time_stamp, 0); |
| } |
| |
| } // namespace cricket |