bdcf38c894
There is also an implementation in Chromium that can be removed if/when this lands: content/renderer/media/webrtc/webrtc_video_capturer_adapter.cc R=fbarchard@google.com, pbos@webrtc.org, perkj@webrtc.org Review URL: https://webrtc-codereview.appspot.com/32059004 git-svn-id: http://webrtc.googlecode.com/svn/trunk@7728 4adac7df-926f-26a2-2b94-8c16560cd09d
405 lines
14 KiB
C++
405 lines
14 KiB
C++
/*
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* libjingle
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* Copyright 2011 Google Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
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* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "talk/media/base/videoframe.h"
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#include <string.h>
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#if !defined(DISABLE_YUV)
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#include "libyuv/compare.h"
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#include "libyuv/planar_functions.h"
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#include "libyuv/scale.h"
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#endif
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#include "talk/media/base/videocommon.h"
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#include "webrtc/base/logging.h"
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namespace cricket {
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// Round to 2 pixels because Chroma channels are half size.
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#define ROUNDTO2(v) (v & ~1)
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rtc::StreamResult VideoFrame::Write(rtc::StreamInterface* stream,
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int* error) {
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rtc::StreamResult result = rtc::SR_SUCCESS;
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const uint8* src_y = GetYPlane();
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const uint8* src_u = GetUPlane();
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const uint8* src_v = GetVPlane();
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if (!src_y || !src_u || !src_v) {
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return result; // Nothing to write.
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}
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const int32 y_pitch = GetYPitch();
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const int32 u_pitch = GetUPitch();
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const int32 v_pitch = GetVPitch();
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const size_t width = GetWidth();
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const size_t height = GetHeight();
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const size_t half_width = (width + 1) >> 1;
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const size_t half_height = (height + 1) >> 1;
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// Write Y.
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for (size_t row = 0; row < height; ++row) {
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result = stream->Write(src_y + row * y_pitch, width, NULL, error);
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if (result != rtc::SR_SUCCESS) {
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return result;
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}
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}
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// Write U.
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for (size_t row = 0; row < half_height; ++row) {
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result = stream->Write(src_u + row * u_pitch, half_width, NULL, error);
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if (result != rtc::SR_SUCCESS) {
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return result;
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}
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}
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// Write V.
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for (size_t row = 0; row < half_height; ++row) {
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result = stream->Write(src_v + row * v_pitch, half_width, NULL, error);
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if (result != rtc::SR_SUCCESS) {
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return result;
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}
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}
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return result;
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}
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bool VideoFrame::CopyToPlanes(
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uint8* dst_y, uint8* dst_u, uint8* dst_v,
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int32 dst_pitch_y, int32 dst_pitch_u, int32 dst_pitch_v) const {
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#if !defined(DISABLE_YUV)
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int32 src_width = static_cast<int>(GetWidth());
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int32 src_height = static_cast<int>(GetHeight());
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return libyuv::I420Copy(GetYPlane(), GetYPitch(),
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GetUPlane(), GetUPitch(),
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GetVPlane(), GetVPitch(),
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dst_y, dst_pitch_y,
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dst_u, dst_pitch_u,
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dst_v, dst_pitch_v,
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src_width, src_height) == 0;
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#else
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int uv_size = GetUPitch() * GetChromaHeight();
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memcpy(dst_y, GetYPlane(), GetWidth() * GetHeight());
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memcpy(dst_u, GetUPlane(), uv_size);
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memcpy(dst_v, GetVPlane(), uv_size);
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return true;
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#endif
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}
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void VideoFrame::CopyToFrame(VideoFrame* dst) const {
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if (!dst) {
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LOG(LS_ERROR) << "NULL dst pointer.";
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return;
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}
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CopyToPlanes(dst->GetYPlane(), dst->GetUPlane(), dst->GetVPlane(),
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dst->GetYPitch(), dst->GetUPitch(), dst->GetVPitch());
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}
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size_t VideoFrame::ConvertToRgbBuffer(uint32 to_fourcc,
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uint8* buffer,
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size_t size,
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int stride_rgb) const {
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const size_t needed = std::abs(stride_rgb) * GetHeight();
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if (size < needed) {
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LOG(LS_WARNING) << "RGB buffer is not large enough";
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return needed;
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}
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if (libyuv::ConvertFromI420(GetYPlane(), GetYPitch(), GetUPlane(),
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GetUPitch(), GetVPlane(), GetVPitch(), buffer,
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stride_rgb, static_cast<int>(GetWidth()),
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static_cast<int>(GetHeight()), to_fourcc)) {
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LOG(LS_ERROR) << "RGB type not supported: " << to_fourcc;
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return 0; // 0 indicates error
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}
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return needed;
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}
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// TODO(fbarchard): Handle odd width/height with rounding.
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void VideoFrame::StretchToPlanes(
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uint8* dst_y, uint8* dst_u, uint8* dst_v,
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int32 dst_pitch_y, int32 dst_pitch_u, int32 dst_pitch_v,
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size_t width, size_t height, bool interpolate, bool vert_crop) const {
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if (!GetYPlane() || !GetUPlane() || !GetVPlane()) {
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LOG(LS_ERROR) << "NULL plane pointer.";
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return;
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}
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size_t src_width = GetWidth();
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size_t src_height = GetHeight();
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if (width == src_width && height == src_height) {
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CopyToPlanes(dst_y, dst_u, dst_v, dst_pitch_y, dst_pitch_u, dst_pitch_v);
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return;
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}
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const uint8* src_y = GetYPlane();
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const uint8* src_u = GetUPlane();
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const uint8* src_v = GetVPlane();
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if (vert_crop) {
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// Adjust the input width:height ratio to be the same as the output ratio.
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if (src_width * height > src_height * width) {
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// Reduce the input width, but keep size/position aligned for YuvScaler
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src_width = ROUNDTO2(src_height * width / height);
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int32 iwidth_offset = ROUNDTO2((GetWidth() - src_width) / 2);
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src_y += iwidth_offset;
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src_u += iwidth_offset / 2;
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src_v += iwidth_offset / 2;
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} else if (src_width * height < src_height * width) {
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// Reduce the input height.
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src_height = src_width * height / width;
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int32 iheight_offset = static_cast<int32>(
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(GetHeight() - src_height) >> 2);
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iheight_offset <<= 1; // Ensure that iheight_offset is even.
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src_y += iheight_offset * GetYPitch();
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src_u += iheight_offset / 2 * GetUPitch();
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src_v += iheight_offset / 2 * GetVPitch();
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}
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}
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// TODO(fbarchard): Implement a simple scale for non-libyuv.
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#if !defined(DISABLE_YUV)
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// Scale to the output I420 frame.
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libyuv::Scale(src_y, src_u, src_v,
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GetYPitch(), GetUPitch(), GetVPitch(),
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static_cast<int>(src_width), static_cast<int>(src_height),
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dst_y, dst_u, dst_v, dst_pitch_y, dst_pitch_u, dst_pitch_v,
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static_cast<int>(width), static_cast<int>(height), interpolate);
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#endif
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}
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size_t VideoFrame::StretchToBuffer(size_t dst_width, size_t dst_height,
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uint8* dst_buffer, size_t size,
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bool interpolate, bool vert_crop) const {
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if (!dst_buffer) {
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LOG(LS_ERROR) << "NULL dst_buffer pointer.";
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return 0;
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}
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size_t needed = SizeOf(dst_width, dst_height);
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if (needed <= size) {
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uint8* dst_y = dst_buffer;
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uint8* dst_u = dst_y + dst_width * dst_height;
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uint8* dst_v = dst_u + ((dst_width + 1) >> 1) * ((dst_height + 1) >> 1);
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StretchToPlanes(dst_y, dst_u, dst_v,
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static_cast<int32>(dst_width),
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static_cast<int32>((dst_width + 1) >> 1),
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static_cast<int32>((dst_width + 1) >> 1),
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dst_width, dst_height, interpolate, vert_crop);
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}
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return needed;
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}
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void VideoFrame::StretchToFrame(VideoFrame* dst,
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bool interpolate, bool vert_crop) const {
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if (!dst) {
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LOG(LS_ERROR) << "NULL dst pointer.";
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return;
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}
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StretchToPlanes(dst->GetYPlane(), dst->GetUPlane(), dst->GetVPlane(),
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dst->GetYPitch(), dst->GetUPitch(), dst->GetVPitch(),
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dst->GetWidth(), dst->GetHeight(),
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interpolate, vert_crop);
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dst->SetElapsedTime(GetElapsedTime());
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dst->SetTimeStamp(GetTimeStamp());
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}
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VideoFrame* VideoFrame::Stretch(size_t dst_width, size_t dst_height,
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bool interpolate, bool vert_crop) const {
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VideoFrame* dest = CreateEmptyFrame(static_cast<int>(dst_width),
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static_cast<int>(dst_height),
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GetPixelWidth(), GetPixelHeight(),
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GetElapsedTime(), GetTimeStamp());
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if (dest) {
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StretchToFrame(dest, interpolate, vert_crop);
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}
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return dest;
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}
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bool VideoFrame::SetToBlack() {
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#if !defined(DISABLE_YUV)
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return libyuv::I420Rect(GetYPlane(), GetYPitch(),
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GetUPlane(), GetUPitch(),
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GetVPlane(), GetVPitch(),
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0, 0,
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static_cast<int>(GetWidth()),
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static_cast<int>(GetHeight()),
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16, 128, 128) == 0;
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#else
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int uv_size = GetUPitch() * GetChromaHeight();
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memset(GetYPlane(), 16, GetWidth() * GetHeight());
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memset(GetUPlane(), 128, uv_size);
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memset(GetVPlane(), 128, uv_size);
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return true;
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#endif
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}
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static const size_t kMaxSampleSize = 1000000000u;
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// Returns whether a sample is valid.
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bool VideoFrame::Validate(uint32 fourcc, int w, int h,
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const uint8 *sample, size_t sample_size) {
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if (h < 0) {
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h = -h;
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}
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// 16384 is maximum resolution for VP8 codec.
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if (w < 1 || w > 16384 || h < 1 || h > 16384) {
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LOG(LS_ERROR) << "Invalid dimensions: " << w << "x" << h;
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return false;
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}
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uint32 format = CanonicalFourCC(fourcc);
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int expected_bpp = 8;
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switch (format) {
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case FOURCC_I400:
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case FOURCC_RGGB:
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case FOURCC_BGGR:
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case FOURCC_GRBG:
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case FOURCC_GBRG:
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expected_bpp = 8;
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break;
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case FOURCC_I420:
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case FOURCC_I411:
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case FOURCC_YU12:
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case FOURCC_YV12:
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case FOURCC_M420:
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case FOURCC_Q420:
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case FOURCC_NV21:
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case FOURCC_NV12:
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expected_bpp = 12;
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break;
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case FOURCC_I422:
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case FOURCC_YV16:
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case FOURCC_YUY2:
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case FOURCC_UYVY:
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case FOURCC_RGBP:
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case FOURCC_RGBO:
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case FOURCC_R444:
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expected_bpp = 16;
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break;
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case FOURCC_I444:
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case FOURCC_YV24:
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case FOURCC_24BG:
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case FOURCC_RAW:
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expected_bpp = 24;
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break;
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case FOURCC_ABGR:
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case FOURCC_BGRA:
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case FOURCC_ARGB:
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expected_bpp = 32;
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break;
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case FOURCC_MJPG:
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case FOURCC_H264:
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expected_bpp = 0;
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break;
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default:
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expected_bpp = 8; // Expect format is at least 8 bits per pixel.
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break;
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}
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size_t expected_size = (w * expected_bpp + 7) / 8 * h;
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// For compressed formats, expect 4 bits per 16 x 16 macro. I420 would be
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// 6 bits, but grey can be 4 bits.
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if (expected_bpp == 0) {
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expected_size = ((w + 15) / 16) * ((h + 15) / 16) * 4 / 8;
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}
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if (sample == NULL) {
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LOG(LS_ERROR) << "NULL sample pointer."
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<< " format: " << GetFourccName(format)
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<< " bpp: " << expected_bpp
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<< " size: " << w << "x" << h
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<< " expected: " << expected_size
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<< " " << sample_size;
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return false;
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}
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// TODO(fbarchard): Make function to dump information about frames.
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uint8 four_samples[4] = { 0, 0, 0, 0 };
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for (size_t i = 0; i < ARRAY_SIZE(four_samples) && i < sample_size; ++i) {
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four_samples[i] = sample[i];
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}
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if (sample_size < expected_size) {
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LOG(LS_ERROR) << "Size field is too small."
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<< " format: " << GetFourccName(format)
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<< " bpp: " << expected_bpp
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<< " size: " << w << "x" << h
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<< " " << sample_size
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<< " expected: " << expected_size
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<< " sample[0..3]: " << static_cast<int>(four_samples[0])
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<< ", " << static_cast<int>(four_samples[1])
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<< ", " << static_cast<int>(four_samples[2])
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<< ", " << static_cast<int>(four_samples[3]);
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return false;
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}
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if (sample_size > kMaxSampleSize) {
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LOG(LS_WARNING) << "Size field is invalid."
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<< " format: " << GetFourccName(format)
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<< " bpp: " << expected_bpp
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<< " size: " << w << "x" << h
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<< " " << sample_size
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<< " expected: " << 2 * expected_size
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<< " sample[0..3]: " << static_cast<int>(four_samples[0])
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<< ", " << static_cast<int>(four_samples[1])
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<< ", " << static_cast<int>(four_samples[2])
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<< ", " << static_cast<int>(four_samples[3]);
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return false;
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}
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// Show large size warning once every 100 frames.
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// TODO(fbarchard): Make frame counter atomic for thread safety.
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static int large_warn100 = 0;
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size_t large_expected_size = expected_size * 2;
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if (expected_bpp >= 8 &&
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(sample_size > large_expected_size || sample_size > kMaxSampleSize) &&
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large_warn100 % 100 == 0) {
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++large_warn100;
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LOG(LS_WARNING) << "Size field is too large."
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<< " format: " << GetFourccName(format)
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<< " bpp: " << expected_bpp
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<< " size: " << w << "x" << h
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<< " bytes: " << sample_size
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<< " expected: " << large_expected_size
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<< " sample[0..3]: " << static_cast<int>(four_samples[0])
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<< ", " << static_cast<int>(four_samples[1])
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<< ", " << static_cast<int>(four_samples[2])
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<< ", " << static_cast<int>(four_samples[3]);
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}
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// TODO(fbarchard): Add duplicate pixel check.
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// TODO(fbarchard): Use frame counter atomic for thread safety.
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static bool valid_once = true;
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if (valid_once) {
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valid_once = false;
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LOG(LS_INFO) << "Validate frame passed."
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<< " format: " << GetFourccName(format)
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<< " bpp: " << expected_bpp
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<< " size: " << w << "x" << h
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<< " bytes: " << sample_size
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<< " expected: " << expected_size
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<< " sample[0..3]: " << static_cast<int>(four_samples[0])
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<< ", " << static_cast<int>(four_samples[1])
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<< ", " << static_cast<int>(four_samples[2])
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<< ", " << static_cast<int>(four_samples[3]);
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}
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return true;
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}
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} // namespace cricket
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