80 lines
2.2 KiB
C++
80 lines
2.2 KiB
C++
// Copyright (c) 2013 Google Inc. 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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#ifndef MEDIA_BASE_DEMUXER_H_
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#define MEDIA_BASE_DEMUXER_H_
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#include <vector>
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#include "base/memory/ref_counted.h"
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#include "base/memory/scoped_ptr.h"
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#include "media/base/container_names.h"
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#include "media/base/status.h"
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namespace media {
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class Decryptor;
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class DecryptorSource;
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class File;
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class MediaParser;
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class MediaSample;
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class MediaStream;
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class StreamInfo;
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class Demuxer {
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public:
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// |file_name| specifies the input source. It uses prefix matching to create
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// a proper File object. The user can extend File to support their custom
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// File objects with its own prefix.
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// decryptor_source generates decryptor(s) when init_data is available.
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// Demuxer does not take over the ownership of decryptor_source.
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Demuxer(const std::string& file_name, DecryptorSource* decryptor_source);
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~Demuxer();
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// Initializes corresponding MediaParser, Decryptor, instantiates
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// MediaStream(s) etc.
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Status Initialize();
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// Drives the remuxing from demuxer side (push): Reads the file and push
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// the Data to Muxer until Eof.
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Status Run();
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// Reads from the source and send it to the parser.
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Status Parse();
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uint32 num_streams() const {
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return streams_.size();
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}
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// Demuxer retains the ownership of streams.
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MediaStream* streams(uint32 index) {
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if (index >= streams_.size())
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return NULL;
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return streams_[index];
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}
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private:
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// Parser event handlers.
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void ParserInitEvent(const std::vector<scoped_refptr<StreamInfo> >& streams);
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bool NewSampleEvent(uint32 track_id,
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const scoped_refptr<MediaSample>& sample);
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void KeyNeededEvent(MediaContainerName container,
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scoped_ptr<uint8[]> init_data,
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int init_data_size);
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DecryptorSource* decryptor_source_;
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std::string file_name_;
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File* media_file_;
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bool init_event_received_;
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scoped_ptr<MediaParser> parser_;
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std::vector<MediaStream*> streams_;
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scoped_ptr<uint8[]> buffer_;
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DISALLOW_COPY_AND_ASSIGN(Demuxer);
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};
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}
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#endif // MEDIA_BASE_DEMUXER_H_
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