Migrate content/common/gpu/media code to media/gpu

content/common/gpu/media/v4l2_device.cc

Index: content/common/gpu/media/v4l2_device.cc
diff --git a/content/common/gpu/media/v4l2_device.cc b/content/common/gpu/media/v4l2_device.cc
deleted file mode 100644
index bd050a40f4a7692a4a43f24a785e172853c6c1e9..0000000000000000000000000000000000000000
--- a/content/common/gpu/media/v4l2_device.cc
+++ /dev/null
@@ -1,324 +0,0 @@
-// Copyright 2014 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 <libdrm/drm_fourcc.h>
-#include <linux/videodev2.h>
-#include <string.h>
-
-#include "base/numerics/safe_conversions.h"
-#include "build/build_config.h"
-#include "content/common/gpu/media/generic_v4l2_device.h"
-#if defined(ARCH_CPU_ARMEL)
-#include "content/common/gpu/media/tegra_v4l2_device.h"
-#endif
-
-namespace content {
-
-V4L2Device::V4L2Device(Type type) : type_(type) {
-}
-
-V4L2Device::~V4L2Device() {
-}
-
-// static
-scoped_refptr<V4L2Device> V4L2Device::Create(Type type) {
-  DVLOG(3) << __PRETTY_FUNCTION__;
-
-  scoped_refptr<GenericV4L2Device> generic_device(new GenericV4L2Device(type));
-  if (generic_device->Initialize())
-    return generic_device;
-
-#if defined(ARCH_CPU_ARMEL)
-  scoped_refptr<TegraV4L2Device> tegra_device(new TegraV4L2Device(type));
-  if (tegra_device->Initialize())
-    return tegra_device;
-#endif
-
-  DVLOG(1) << "Failed to create V4L2Device";
-  return scoped_refptr<V4L2Device>();
-}
-
-// static
-media::VideoPixelFormat V4L2Device::V4L2PixFmtToVideoPixelFormat(
-    uint32_t pix_fmt) {
-  switch (pix_fmt) {
-    case V4L2_PIX_FMT_NV12:
-    case V4L2_PIX_FMT_NV12M:
-      return media::PIXEL_FORMAT_NV12;
-
-    case V4L2_PIX_FMT_MT21:
-      return media::PIXEL_FORMAT_MT21;
-
-    case V4L2_PIX_FMT_YUV420:
-    case V4L2_PIX_FMT_YUV420M:
-      return media::PIXEL_FORMAT_I420;
-
-    case V4L2_PIX_FMT_RGB32:
-      return media::PIXEL_FORMAT_ARGB;
-
-    default:
-      LOG(FATAL) << "Add more cases as needed";
-      return media::PIXEL_FORMAT_UNKNOWN;
-  }
-}
-
-// static
-uint32_t V4L2Device::VideoPixelFormatToV4L2PixFmt(
-    media::VideoPixelFormat format) {
-  switch (format) {
-    case media::PIXEL_FORMAT_NV12:
-      return V4L2_PIX_FMT_NV12M;
-
-    case media::PIXEL_FORMAT_MT21:
-      return V4L2_PIX_FMT_MT21;
-
-    case media::PIXEL_FORMAT_I420:
-      return V4L2_PIX_FMT_YUV420M;
-
-    default:
-      LOG(FATAL) << "Add more cases as needed";
-      return 0;
-  }
-}
-
-// static
-uint32_t V4L2Device::VideoCodecProfileToV4L2PixFmt(
-    media::VideoCodecProfile profile,
-    bool slice_based) {
-  if (profile >= media::H264PROFILE_MIN &&
-      profile <= media::H264PROFILE_MAX) {
-    if (slice_based)
-      return V4L2_PIX_FMT_H264_SLICE;
-    else
-      return V4L2_PIX_FMT_H264;
-  } else if (profile >= media::VP8PROFILE_MIN &&
-             profile <= media::VP8PROFILE_MAX) {
-    if (slice_based)
-      return V4L2_PIX_FMT_VP8_FRAME;
-    else
-      return V4L2_PIX_FMT_VP8;
-  } else if (profile >= media::VP9PROFILE_MIN &&
-             profile <= media::VP9PROFILE_MAX) {
-    return V4L2_PIX_FMT_VP9;
-  } else {
-    LOG(FATAL) << "Add more cases as needed";
-    return 0;
-  }
-}
-
-// static
-uint32_t V4L2Device::V4L2PixFmtToDrmFormat(uint32_t format) {
-  switch (format) {
-    case V4L2_PIX_FMT_NV12:
-    case V4L2_PIX_FMT_NV12M:
-      return DRM_FORMAT_NV12;
-
-    case V4L2_PIX_FMT_YUV420:
-    case V4L2_PIX_FMT_YUV420M:
-      return DRM_FORMAT_YUV420;
-
-    case V4L2_PIX_FMT_RGB32:
-      return DRM_FORMAT_ARGB8888;
-
-    default:
-      DVLOG(1) << "Add more cases as needed";
-      return 0;
-  }
-}
-
-// static
-gfx::Size V4L2Device::CodedSizeFromV4L2Format(struct v4l2_format format) {
-  gfx::Size coded_size;
-  gfx::Size visible_size;
-  media::VideoPixelFormat frame_format = media::PIXEL_FORMAT_UNKNOWN;
-  size_t bytesperline = 0;
-  // Total bytes in the frame.
-  size_t sizeimage = 0;
-
-  if (V4L2_TYPE_IS_MULTIPLANAR(format.type)) {
-    DCHECK_GT(format.fmt.pix_mp.num_planes, 0);
-    bytesperline =
-        base::checked_cast<int>(format.fmt.pix_mp.plane_fmt[0].bytesperline);
-    for (size_t i = 0; i < format.fmt.pix_mp.num_planes; ++i) {
-      sizeimage +=
-          base::checked_cast<int>(format.fmt.pix_mp.plane_fmt[i].sizeimage);
-    }
-    visible_size.SetSize(base::checked_cast<int>(format.fmt.pix_mp.width),
-                         base::checked_cast<int>(format.fmt.pix_mp.height));
-    frame_format =
-        V4L2Device::V4L2PixFmtToVideoPixelFormat(format.fmt.pix_mp.pixelformat);
-  } else {
-    bytesperline = base::checked_cast<int>(format.fmt.pix.bytesperline);
-    sizeimage = base::checked_cast<int>(format.fmt.pix.sizeimage);
-    visible_size.SetSize(base::checked_cast<int>(format.fmt.pix.width),
-                         base::checked_cast<int>(format.fmt.pix.height));
-    frame_format =
-        V4L2Device::V4L2PixFmtToVideoPixelFormat(format.fmt.pix.pixelformat);
-  }
-
-  // V4L2 does not provide per-plane bytesperline (bpl) when different
-  // components are sharing one physical plane buffer. In this case, it only
-  // provides bpl for the first component in the plane. So we can't depend on it
-  // for calculating height, because bpl may vary within one physical plane
-  // buffer. For example, YUV420 contains 3 components in one physical plane,
-  // with Y at 8 bits per pixel, and Cb/Cr at 4 bits per pixel per component,
-  // but we only get 8 pits per pixel from bytesperline in physical plane 0.
-  // So we need to get total frame bpp from elsewhere to calculate coded height.
-
-  // We need bits per pixel for one component only to calculate
-  // coded_width from bytesperline.
-  int plane_horiz_bits_per_pixel =
-      media::VideoFrame::PlaneHorizontalBitsPerPixel(frame_format, 0);
-
-  // Adding up bpp for each component will give us total bpp for all components.
-  int total_bpp = 0;
-  for (size_t i = 0; i < media::VideoFrame::NumPlanes(frame_format); ++i)
-    total_bpp += media::VideoFrame::PlaneBitsPerPixel(frame_format, i);
-
-  if (sizeimage == 0 || bytesperline == 0 || plane_horiz_bits_per_pixel == 0 ||
-      total_bpp == 0 || (bytesperline * 8) % plane_horiz_bits_per_pixel != 0) {
-    LOG(ERROR) << "Invalid format provided";
-    return coded_size;
-  }
-
-  // Coded width can be calculated by taking the first component's bytesperline,
-  // which in V4L2 always applies to the first component in physical plane
-  // buffer.
-  int coded_width = bytesperline * 8 / plane_horiz_bits_per_pixel;
-  // Sizeimage is coded_width * coded_height * total_bpp.
-  int coded_height = sizeimage * 8 / coded_width / total_bpp;
-
-  coded_size.SetSize(coded_width, coded_height);
-  // It's possible the driver gave us a slightly larger sizeimage than what
-  // would be calculated from coded size. This is technically not allowed, but
-  // some drivers (Exynos) like to have some additional alignment that is not a
-  // multiple of bytesperline. The best thing we can do is to compensate by
-  // aligning to next full row.
-  if (sizeimage > media::VideoFrame::AllocationSize(frame_format, coded_size))
-    coded_size.SetSize(coded_width, coded_height + 1);
-  DVLOG(3) << "coded_size=" << coded_size.ToString();
-
-  // Sanity checks. Calculated coded size has to contain given visible size
-  // and fulfill buffer byte size requirements.
-  DCHECK(gfx::Rect(coded_size).Contains(gfx::Rect(visible_size)));
-  DCHECK_LE(sizeimage,
-            media::VideoFrame::AllocationSize(frame_format, coded_size));
-
-  return coded_size;
-}
-
-void V4L2Device::GetSupportedResolution(uint32_t pixelformat,
-                                        gfx::Size* min_resolution,
-                                        gfx::Size* max_resolution) {
-  max_resolution->SetSize(0, 0);
-  min_resolution->SetSize(0, 0);
-  v4l2_frmsizeenum frame_size;
-  memset(&frame_size, 0, sizeof(frame_size));
-  frame_size.pixel_format = pixelformat;
-  for (; Ioctl(VIDIOC_ENUM_FRAMESIZES, &frame_size) == 0; ++frame_size.index) {
-    if (frame_size.type == V4L2_FRMSIZE_TYPE_DISCRETE) {
-      if (frame_size.discrete.width >=
-              base::checked_cast<uint32_t>(max_resolution->width()) &&
-          frame_size.discrete.height >=
-              base::checked_cast<uint32_t>(max_resolution->height())) {
-        max_resolution->SetSize(frame_size.discrete.width,
-                                frame_size.discrete.height);
-      }
-      if (min_resolution->IsEmpty() ||
-          (frame_size.discrete.width <=
-               base::checked_cast<uint32_t>(min_resolution->width()) &&
-           frame_size.discrete.height <=
-               base::checked_cast<uint32_t>(min_resolution->height()))) {
-        min_resolution->SetSize(frame_size.discrete.width,
-                                frame_size.discrete.height);
-      }
-    } else if (frame_size.type == V4L2_FRMSIZE_TYPE_STEPWISE ||
-               frame_size.type == V4L2_FRMSIZE_TYPE_CONTINUOUS) {
-      max_resolution->SetSize(frame_size.stepwise.max_width,
-                              frame_size.stepwise.max_height);
-      min_resolution->SetSize(frame_size.stepwise.min_width,
-                              frame_size.stepwise.min_height);
-      break;
-    }
-  }
-  if (max_resolution->IsEmpty()) {
-    max_resolution->SetSize(1920, 1088);
-    LOG(ERROR) << "GetSupportedResolution failed to get maximum resolution for "
-               << "fourcc " << std::hex << pixelformat
-               << ", fall back to " << max_resolution->ToString();
-  }
-  if (min_resolution->IsEmpty()) {
-    min_resolution->SetSize(16, 16);
-    LOG(ERROR) << "GetSupportedResolution failed to get minimum resolution for "
-               << "fourcc " << std::hex << pixelformat
-               << ", fall back to " << min_resolution->ToString();
-  }
-}
-
-media::VideoDecodeAccelerator::SupportedProfiles
-V4L2Device::GetSupportedDecodeProfiles(const size_t num_formats,
-                                       const uint32_t pixelformats[]) {
-  DCHECK_EQ(type_, kDecoder);
-  media::VideoDecodeAccelerator::SupportedProfiles profiles;
-  media::VideoDecodeAccelerator::SupportedProfile profile;
-  v4l2_fmtdesc fmtdesc;
-  memset(&fmtdesc, 0, sizeof(fmtdesc));
-  fmtdesc.type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
-
-  for (; Ioctl(VIDIOC_ENUM_FMT, &fmtdesc) == 0; ++fmtdesc.index) {
-    if (std::find(pixelformats, pixelformats + num_formats,
-                  fmtdesc.pixelformat) == pixelformats + num_formats)
-      continue;
-    int min_profile, max_profile;
-    switch (fmtdesc.pixelformat) {
-      case V4L2_PIX_FMT_H264:
-      case V4L2_PIX_FMT_H264_SLICE:
-        min_profile = media::H264PROFILE_MIN;
-        max_profile = media::H264PROFILE_MAX;
-        break;
-      case V4L2_PIX_FMT_VP8:
-      case V4L2_PIX_FMT_VP8_FRAME:
-        min_profile = media::VP8PROFILE_MIN;
-        max_profile = media::VP8PROFILE_MAX;
-        break;
-      case V4L2_PIX_FMT_VP9:
-        min_profile = media::VP9PROFILE_MIN;
-        max_profile = media::VP9PROFILE_MAX;
-        break;
-      default:
-        NOTREACHED() << "Unhandled pixelformat " << std::hex
-                     << fmtdesc.pixelformat;
-        return profiles;
-    }
-    GetSupportedResolution(fmtdesc.pixelformat, &profile.min_resolution,
-                           &profile.max_resolution);
-    for (int media_profile = min_profile; media_profile <= max_profile;
-         ++media_profile) {
-      profile.profile = static_cast<media::VideoCodecProfile>(media_profile);
-      profiles.push_back(profile);
-    }
-  }
-  return profiles;
-}
-
-bool V4L2Device::SupportsDecodeProfileForV4L2PixelFormats(
-    media::VideoCodecProfile profile,
-    const size_t num_formats,
-    const uint32_t pixelformats[]) {
-  // Get all supported profiles by this device, taking into account only fourccs
-  // in pixelformats.
-  const auto supported_profiles =
-      GetSupportedDecodeProfiles(num_formats, pixelformats);
-
-  // Try to find requested profile among the returned supported_profiles.
-  const auto iter = std::find_if(
-      supported_profiles.begin(), supported_profiles.end(),
-      [profile](const media::VideoDecodeAccelerator::SupportedProfile& p) {
-        return profile == p.profile;
-      });
-
-  return iter != supported_profiles.end();
-}
-
-}  //  namespace content