chromium/media/mojo/mojom/media_types_enum_mojom_traits.h

// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef MEDIA_MOJO_MOJOM_MEDIA_TYPES_ENUM_MOJOM_TRAITS_H_
#define MEDIA_MOJO_MOJOM_MEDIA_TYPES_ENUM_MOJOM_TRAITS_H_

#include "base/notreached.h"
#include "build/build_config.h"
#include "media/base/cdm_factory.h"
#include "media/base/renderer_factory_selector.h"
#include "media/base/svc_scalability_mode.h"
#include "media/base/video_transformation.h"
#include "media/cdm/cdm_document_service.h"
#include "media/mojo/mojom/media_types.mojom-shared.h"

// Most enums have automatically generated traits, in media_types.mojom.h, due
// to their [native] attribute. This file defines traits for enums that are used
// in files that cannot directly include media_types.mojom.h.

namespace mojo {

#if BUILDFLAG(IS_WIN)
template <>
struct EnumTraits<media::mojom::CdmEvent, ::media::CdmEvent> {
  static media::mojom::CdmEvent ToMojom(::media::CdmEvent input) {
    switch (input) {
      case ::media::CdmEvent::kSignificantPlayback:
        return media::mojom::CdmEvent::kSignificantPlayback;
      case ::media::CdmEvent::kPlaybackError:
        return media::mojom::CdmEvent::kPlaybackError;
      case ::media::CdmEvent::kCdmError:
        return media::mojom::CdmEvent::kCdmError;
      case ::media::CdmEvent::kHardwareContextReset:
        return media::mojom::CdmEvent::kHardwareContextReset;
    }

    NOTREACHED();
  }

  // Returning false results in deserialization failure and causes the
  // message pipe receiving it to be disconnected.
  static bool FromMojom(media::mojom::CdmEvent input,
                        ::media::CdmEvent* output) {
    switch (input) {
      case media::mojom::CdmEvent::kSignificantPlayback:
        *output = ::media::CdmEvent::kSignificantPlayback;
        return true;
      case media::mojom::CdmEvent::kPlaybackError:
        *output = ::media::CdmEvent::kPlaybackError;
        return true;
      case media::mojom::CdmEvent::kCdmError:
        *output = ::media::CdmEvent::kCdmError;
        return true;
      case media::mojom::CdmEvent::kHardwareContextReset:
        *output = ::media::CdmEvent::kHardwareContextReset;
        return true;
    }

    NOTREACHED();
  }
};
#endif  // BUILDFLAG(IS_WIN)

template <>
struct EnumTraits<media::mojom::CdmSessionClosedReason,
                  ::media::CdmSessionClosedReason> { … };

template <>
struct EnumTraits<media::mojom::EncryptionType, ::media::EncryptionType> { … };

template <>
struct EnumTraits<media::mojom::SVCScalabilityMode, media::SVCScalabilityMode> { … };

template <>
struct EnumTraits<media::mojom::SVCInterLayerPredMode,
                  media::SVCInterLayerPredMode> { … };

template <>
struct EnumTraits<media::mojom::VideoRotation, ::media::VideoRotation> { … };

template <>
struct EnumTraits<media::mojom::RendererType, ::media::RendererType> { … };

template <>
struct EnumTraits<media::mojom::CreateCdmStatus, media::CreateCdmStatus> { … };

}  // namespace mojo

#endif  // MEDIA_MOJO_MOJOM_MEDIA_TYPES_ENUM_MOJOM_TRAITS_H_