Index: webrtc/api/video/video_frame_buffer.cc |
diff --git a/webrtc/api/video/video_frame_buffer.cc b/webrtc/api/video/video_frame_buffer.cc |
new file mode 100644 |
index 0000000000000000000000000000000000000000..0adad9a28b25e53fe3ee4ede98207633fdde9cdf |
--- /dev/null |
+++ b/webrtc/api/video/video_frame_buffer.cc |
@@ -0,0 +1,125 @@ |
+/* |
+ * Copyright (c) 2017 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. |
+ */ |
+ |
+#include "webrtc/api/video/video_frame_buffer.h" |
+ |
+#include "libyuv/convert_from.h" |
+#include "webrtc/api/video/i420_buffer.h" |
+#include "webrtc/base/checks.h" |
+ |
+namespace webrtc { |
+ |
+namespace { |
+ |
+// Class for handling legacy implementations of NativeToI420Buffer() and |
+// adapting them into the new ToI420() function. |
+class LegacyI420Wrapper : public I420BufferInterface { |
+ public: |
+ explicit LegacyI420Wrapper(rtc::scoped_refptr<VideoFrameBuffer> buffer) |
+ : buffer_(buffer) {} |
+ |
+ int width() const override { return buffer_->width(); } |
+ int height() const override { return buffer_->height(); } |
+ |
+ const uint8_t* DataY() const override { return buffer_->DataY(); } |
+ const uint8_t* DataU() const override { return buffer_->DataU(); } |
+ const uint8_t* DataV() const override { return buffer_->DataV(); } |
+ |
+ int StrideY() const override { return buffer_->StrideY(); } |
+ int StrideU() const override { return buffer_->StrideU(); } |
+ int StrideV() const override { return buffer_->StrideV(); } |
+ |
+ private: |
+ rtc::scoped_refptr<VideoFrameBuffer> buffer_; |
+}; |
+ |
+} // namespace |
+ |
+// TODO(magjed): The default implementations in VideoFrameBuffer are provided in |
+// order to support the deprecated interface until external clients are updated. |
+// Remove once done. |
+VideoFrameBuffer::PixelFormat VideoFrameBuffer::Format() const { |
+ return native_handle() ? PixelFormat::kNative : PixelFormat::kI420; |
+} |
+ |
+const uint8_t* VideoFrameBuffer::DataY() const { |
+ return const_cast<VideoFrameBuffer*>(this)->ToI420()->DataY(); |
+} |
+ |
+const uint8_t* VideoFrameBuffer::DataU() const { |
+ return const_cast<VideoFrameBuffer*>(this)->ToI420()->DataU(); |
+} |
+ |
+const uint8_t* VideoFrameBuffer::DataV() const { |
+ return const_cast<VideoFrameBuffer*>(this)->ToI420()->DataV(); |
+} |
+ |
+// Returns the number of bytes between successive rows for a given plane. |
+int VideoFrameBuffer::StrideY() const { |
+ return const_cast<VideoFrameBuffer*>(this)->ToI420()->StrideY(); |
+} |
+ |
+int VideoFrameBuffer::StrideU() const { |
+ return const_cast<VideoFrameBuffer*>(this)->ToI420()->StrideU(); |
+} |
+ |
+int VideoFrameBuffer::StrideV() const { |
+ return const_cast<VideoFrameBuffer*>(this)->ToI420()->StrideV(); |
+} |
+ |
+void* VideoFrameBuffer::native_handle() const { |
+ RTC_DCHECK(Format() != PixelFormat::kNative); |
+ return nullptr; |
+} |
+ |
+rtc::scoped_refptr<VideoFrameBuffer> VideoFrameBuffer::NativeToI420Buffer() { |
+ return ToI420(); |
+} |
+ |
+rtc::scoped_refptr<I420BufferInterface> VideoFrameBuffer::ToI420() { |
+ return new rtc::RefCountedObject<LegacyI420Wrapper>(NativeToI420Buffer()); |
+} |
+ |
+rtc::scoped_refptr<I444BufferInterface> VideoFrameBuffer::ToI444() { |
+ RTC_NOTREACHED(); |
+ return nullptr; |
+} |
+ |
+VideoFrameBuffer::PixelFormat I420BufferInterface::Format() const { |
+ return PixelFormat::kI420; |
+} |
+ |
+rtc::scoped_refptr<I420BufferInterface> I420BufferInterface::ToI420() { |
+ return this; |
+} |
+ |
+VideoFrameBuffer::PixelFormat I444BufferInterface::Format() const { |
+ return PixelFormat::kI444; |
+} |
+ |
+rtc::scoped_refptr<I420BufferInterface> I444BufferInterface::ToI420() { |
+ rtc::scoped_refptr<I420Buffer> i420_buffer = |
+ I420Buffer::Create(width(), height()); |
+ libyuv::I420ToI444( |
+ DataY(), StrideY(), |
+ DataU(), StrideU(), |
+ DataV(), StrideV(), |
+ i420_buffer->MutableDataY(), i420_buffer->StrideY(), |
+ i420_buffer->MutableDataU(), i420_buffer->StrideU(), |
+ i420_buffer->MutableDataV(), i420_buffer->StrideV(), |
+ width(), height()); |
+ return i420_buffer; |
+} |
+ |
+rtc::scoped_refptr<I444BufferInterface> I444BufferInterface::ToI444() { |
+ return this; |
+} |
+ |
+} // namespace webrtc |