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54 lines
2.2 KiB
Plaintext
54 lines
2.2 KiB
Plaintext
// Copyright 2014 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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module media.mojom;
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import "media/mojo/interfaces/media_types.mojom";
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// DemuxerStream is modeled after media::DemuxerStream using mojo in order to
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// enable proxying between a media::Pipeline and media::Renderer living in two
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// different applications.
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interface DemuxerStream {
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// See media::DemuxerStream for descriptions.
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[Native]
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enum Type;
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// See media::DemuxerStream for descriptions.
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[Native]
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enum Status;
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// Initializes the DemuxerStream. Read() can only be called after the callback
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// is received. The returned |pipe| will be used to fill out the data section
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// of the media::DecoderBuffer returned via DemuxerStream::Read(). Only the
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// config for |type| should be non-null, which is the initial config of the
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// stream.
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Initialize() => (Type type,
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handle<data_pipe_consumer> pipe,
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AudioDecoderConfig? audio_config,
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VideoDecoderConfig? video_config);
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// Requests a DecoderBuffer from this stream for decoding and rendering.
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// See media::DemuxerStream::ReadCB for a general explanation of the fields.
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//
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// Notes on the callback:
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// - If |status| is OK, |buffer| should be non-null and clients must fill out
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// the data section of the returned media::DecoderBuffer by reading from
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// the |pipe| provided during Initialize().
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// - If |status| is ABORTED, all other fields should be null.
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// - If |status| is CONFIG_CHANGED, the config for the stream type should be
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// non-null.
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//
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// TODO(dalecurtis): Remove this method in favor of serializing everything
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// into the DataPipe given to Initialize() once DataPipe supports framed data
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// in a nicer fashion.
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Read() => (Status status,
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DecoderBuffer? buffer,
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AudioDecoderConfig? audio_config,
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VideoDecoderConfig? video_config);
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// Enables converting bitstream to a format that is expected by the decoder.
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// For example, H.264/AAC bitstream based packets into H.264 Annex B format.
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EnableBitstreamConverter();
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};
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