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// Copyright 2013 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.
#ifndef MEDIA_FILTERS_GPU_VIDEO_DECODER_FACTORIES_H_
#define MEDIA_FILTERS_GPU_VIDEO_DECODER_FACTORIES_H_
#include "base/memory/ref_counted.h"
#include "media/video/video_decode_accelerator.h"
namespace base {
class MessageLoopProxy;
class SharedMemory;
}
class SkBitmap;
namespace media {
// Helper interface for specifying factories needed to instantiate a hardware
// video decoder.
class MEDIA_EXPORT GpuVideoDecoderFactories
: public base::RefCountedThreadSafe<GpuVideoDecoderFactories> {
public:
// Caller owns returned pointer.
virtual VideoDecodeAccelerator* CreateVideoDecodeAccelerator(
VideoCodecProfile profile,
VideoDecodeAccelerator::Client* client) = 0;
// Allocate & delete native textures.
virtual uint32 CreateTextures(int32 count,
const gfx::Size& size,
std::vector<uint32>* texture_ids,
std::vector<gpu::Mailbox>* texture_mailboxes,
uint32 texture_target) = 0;
virtual void DeleteTexture(uint32 texture_id) = 0;
virtual void WaitSyncPoint(uint32 sync_point) = 0;
// Read pixels from a native texture and store into |pixels| as RGBA.
virtual void ReadPixels(uint32 texture_id,
uint32 texture_target,
const gfx::Size& size,
const SkBitmap& pixels) = 0;
// Allocate & return a shared memory segment. Caller is responsible for
// Close()ing the returned pointer.
virtual base::SharedMemory* CreateSharedMemory(size_t size) = 0;
// Returns the message loop the VideoDecodeAccelerator runs on.
virtual scoped_refptr<base::MessageLoopProxy> GetMessageLoop() = 0;
// Abort any outstanding factory operations and error any future
// attempts at factory operations
virtual void Abort() = 0;
// Returns true if Abort() has been called.
virtual bool IsAborted() = 0;
protected:
friend class base::RefCountedThreadSafe<GpuVideoDecoderFactories>;
virtual ~GpuVideoDecoderFactories();
};
} // namespace media
#endif // MEDIA_FILTERS_GPU_VIDEO_DECODER_FACTORIES_H_
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