зеркало из https://github.com/mozilla/gecko-dev.git
79 строки
2.1 KiB
Plaintext
79 строки
2.1 KiB
Plaintext
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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include "mozilla/dom/MediaIPCUtils.h";
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include protocol PVideoDecoderManager;
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include LayersSurfaces;
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using VideoInfo from "MediaInfo.h";
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using mozilla::layers::LayersBackend from "mozilla/layers/LayersTypes.h";
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using struct mozilla::layers::TextureFactoryIdentifier from "mozilla/layers/CompositorTypes.h";
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namespace mozilla {
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namespace dom {
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struct MediaDataIPDL
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{
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int64_t offset;
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int64_t time;
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int64_t timecode;
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int64_t duration;
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uint32_t frames;
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bool keyframe;
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};
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struct VideoDataIPDL
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{
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MediaDataIPDL base;
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IntSize display;
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SurfaceDescriptorGPUVideo sd;
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int32_t frameID;
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};
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struct MediaRawDataIPDL
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{
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MediaDataIPDL base;
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Shmem buffer;
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};
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// This protocol provides a way to use MediaDataDecoder/MediaDataDecoderCallback
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// across processes. The parent side currently is only implemented to work with
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// Window Media Foundation, but can be extended easily to support other backends.
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// The child side runs in the content process, and the parent side runs in the
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// GPU process. We run a separate IPDL thread for both sides.
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async protocol PVideoDecoder
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{
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manager PVideoDecoderManager;
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parent:
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async Init(VideoInfo info, TextureFactoryIdentifier identifier);
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async Input(MediaRawDataIPDL data);
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async Flush();
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async Drain();
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async Shutdown();
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async SetSeekThreshold(int64_t time);
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async __delete__();
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child:
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async InitComplete(bool hardware, nsCString hardwareReason);
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async InitFailed(nsresult reason);
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// Each output includes a SurfaceDescriptorGPUVideo that represents the decoded
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// frame. This SurfaceDescriptor can be used on the Layers IPDL protocol, but
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// must be released explicitly using DeallocateSurfaceDescriptorGPUVideo
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// on the manager protocol.
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async Output(VideoDataIPDL data);
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async InputExhausted();
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async DrainComplete();
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async Error(nsresult error);
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};
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} // namespace dom
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} // namespace mozilla
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