Revert of Linux Video Capture: Add V4L2VideoCaptureDelegate{Single,Multi}Plane.

media/video/capture/linux/v4l2_capture_delegate_single_plane.cc

-// Copyright 2015 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "media/video/capture/linux/v4l2_capture_delegate_single_plane.h"
-
-#include <sys/mman.h>
-
-namespace media {
-
-scoped_refptr<V4L2CaptureDelegate::BufferTracker>
-V4L2CaptureDelegateSinglePlane::CreateBufferTracker() const {
-  return make_scoped_refptr(new BufferTrackerSPlane());
-}
-
-bool V4L2CaptureDelegateSinglePlane::FillV4L2Format(
-    v4l2_format* format,
-    uint32_t width,
-    uint32_t height,
-    uint32_t pixelformat_fourcc) const {
-  format->fmt.pix.width = width;
-  format->fmt.pix.height = height;
-  format->fmt.pix.pixelformat = pixelformat_fourcc;
-  return true;
-}
-
-void V4L2CaptureDelegateSinglePlane::FinishFillingV4L2Buffer(
-    v4l2_buffer* buffer) const {
-  buffer->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
-}
-
-void V4L2CaptureDelegateSinglePlane::SendBuffer(
-    const scoped_refptr<BufferTracker>& buffer_tracker,
-    const v4l2_format& format) const {
-  const size_t data_length = format.fmt.pix.sizeimage;
-  DCHECK_GE(data_length, capture_format().ImageAllocationSize());
-  client()->OnIncomingCapturedData(
-      buffer_tracker->GetPlaneStart(0),
-      data_length,
-      capture_format(),
-      rotation(),
-      base::TimeTicks::Now());
-}
-
-bool V4L2CaptureDelegateSinglePlane::BufferTrackerSPlane::Init(
-    int fd,
-    const v4l2_buffer& buffer) {
-  // Some devices require mmap() to be called with both READ and WRITE.
-  // See http://crbug.com/178582.
-  void* const start = mmap(NULL, buffer.length, PROT_READ | PROT_WRITE,
-                           MAP_SHARED, fd, buffer.m.offset);
-  if (start == MAP_FAILED) {
-    DLOG(ERROR) << "Error mmap()ing a V4L2 buffer into userspace";
-    return false;
-  }
-  AddMmapedPlane(static_cast<uint8_t*>(start), buffer.length);
-  return true;
-}
-
-}  // namespace media