gecko-dev/dom/media/ipc/PRemoteVideoDecoder.ipdl

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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
include "mozilla/dom/MediaIPCUtils.h";
include protocol PRemoteDecoderManager;
include PMediaDecoderParams;
include LayersSurfaces;
using mozilla::MediaDataDecoder::ConversionRequired from "PlatformDecoderModule.h";
namespace mozilla {
struct RemoteVideoDataIPDL
{
MediaDataIPDL base;
IntSize display;
IntSize frameSize;
SurfaceDescriptorBuffer sdBuffer;
int32_t frameID;
};
// This protocol provides a way to use MediaDataDecoder across processes.
// The parent side currently is only implemented to work with
// RemoteDecoderModule.
// The child side runs in the content process, and the parent side runs
// in the RDD process. We run a separate IPDL thread for both sides.
async protocol PRemoteVideoDecoder
{
manager PRemoteDecoderManager;
parent:
async Init();
async Input(MediaRawDataIPDL data);
async Flush();
async Drain();
async Shutdown();
// To clear the threshold, call with INT64_MIN.
async SetSeekThreshold(int64_t time);
async __delete__();
child:
async InitComplete(nsCString decoderDescription,
ConversionRequired conversion);
async InitFailed(nsresult reason);
async FlushComplete();
// Each output includes a SurfaceDescriptorBuffer that represents the decoded
// frame.
async VideoOutput(RemoteVideoDataIPDL data);
async InputExhausted();
async DrainComplete();
async Error(nsresult error);
};
} // namespace mozilla