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// Copyright 2021 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_VIDEO_RENDERABLE_GPU_MEMORY_BUFFER_VIDEO_FRAME_POOL_H_
#define MEDIA_VIDEO_RENDERABLE_GPU_MEMORY_BUFFER_VIDEO_FRAME_POOL_H_
#include <memory>
#include "base/memory/scoped_refptr.h"
#include "media/base/media_export.h"
#include "media/base/video_types.h"
#include "third_party/skia/include/core/SkImageInfo.h"
#include "third_party/skia/include/gpu/GrTypes.h"
#include "ui/gfx/buffer_types.h"
namespace gfx {
class ColorSpace;
class GpuMemoryBuffer;
class Size;
} // namespace gfx
namespace gpu {
class GpuMemoryBufferManager;
class SharedImageInterface;
struct Mailbox;
struct SyncToken;
} // namespace gpu
namespace media {
class VideoFrame;
// A video frame pool that returns GpuMemoryBuffer-backed VideoFrames. All
// access to this class must be on the thread on which it was created.
class MEDIA_EXPORT RenderableGpuMemoryBufferVideoFramePool {
public:
// Interface to GPU functionality. This particular interface (as opposed to,
// say, exposing a GpuMemoryBufferManager and SharedImageInterface) is
// chosen for testing.
class Context {
public:
// Allocate a GpuMemoryBuffer.
virtual std::unique_ptr<gfx::GpuMemoryBuffer> CreateGpuMemoryBuffer(
const gfx::Size& size,
gfx::BufferFormat format,
gfx::BufferUsage usage) = 0;
// Create a SharedImage representation of a plane of a GpuMemoryBuffer
// allocated by this interface. Populate `mailbox` and `sync_token`.
virtual void CreateSharedImage(gfx::GpuMemoryBuffer* gpu_memory_buffer,
gfx::BufferPlane plane,
const gfx::ColorSpace& color_space,
GrSurfaceOrigin surface_origin,
SkAlphaType alpha_type,
uint32_t usage,
gpu::Mailbox& mailbox,
gpu::SyncToken& sync_token) = 0;
// Destroy a SharedImage created by this interface.
virtual void DestroySharedImage(const gpu::SyncToken& sync_token,
const gpu::Mailbox& mailbox) = 0;
virtual ~Context() = default;
};
// Create a frame pool. The supplied `context` will live until all frames
// created by the pool have been destroyed (so it may outlive the returned
// pool).
static std::unique_ptr<RenderableGpuMemoryBufferVideoFramePool> Create(
std::unique_ptr<Context> context);
// Returns a GpuMemoryBuffer-backed VideoFrame that can be rendered to. This
// may return nullptr on an unsupported parameter, or may return nullptr
// forever in response to a context lost.
virtual scoped_refptr<VideoFrame> MaybeCreateVideoFrame(
const gfx::Size& coded_size,
const gfx::ColorSpace& color_space) = 0;
virtual ~RenderableGpuMemoryBufferVideoFramePool() = default;
};
} // namespace media
#endif // MEDIA_VIDEO_RENDERABLE_GPU_MEMORY_BUFFER_VIDEO_FRAME_POOL_H_