85 lines
2.4 KiB
C++
85 lines
2.4 KiB
C++
// Copyright 2014 Google Inc. All rights reserved.
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//
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file or at
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// https://developers.google.com/open-source/licenses/bsd
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//
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// Implements MP4 Muxer.
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#ifndef MEDIA_MP4_MP4_MUXER_H_
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#define MEDIA_MP4_MP4_MUXER_H_
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#include <vector>
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#include "media/base/muxer.h"
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#include "media/mp4/fourccs.h"
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namespace media {
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class AudioStreamInfo;
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class StreamInfo;
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class VideoStreamInfo;
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namespace mp4 {
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class MP4Segmenter;
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struct ProtectionSchemeInfo;
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struct ProtectionSystemSpecificHeader;
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struct Track;
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class MP4Muxer : public Muxer {
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public:
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explicit MP4Muxer(const MuxerOptions& options);
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virtual ~MP4Muxer();
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// Muxer implementations.
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virtual Status Initialize() OVERRIDE;
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virtual Status Finalize() OVERRIDE;
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virtual Status AddSample(const MediaStream* stream,
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scoped_refptr<MediaSample> sample) OVERRIDE;
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private:
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// Generate Audio/Video Track atom.
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void InitializeTrak(const StreamInfo* info, Track* trak);
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void GenerateAudioTrak(const AudioStreamInfo* audio_info,
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Track* trak,
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uint32 track_id);
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void GenerateVideoTrak(const VideoStreamInfo* video_info,
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Track* trak,
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uint32 track_id);
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// Generate Pssh atom.
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void GeneratePssh(ProtectionSystemSpecificHeader* pssh);
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// Generates a sinf atom with CENC encryption parameters.
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void GenerateSinf(ProtectionSchemeInfo* sinf, FourCC old_type);
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// Should we enable encrytion?
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bool IsEncryptionRequired() { return (encryptor_source() != NULL); }
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// Helper functions for events.
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void GetStreamInfo(std::vector<StreamInfo*>* stream_infos);
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// Gets |start| and |end| initialization range. Returns true if there is an
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// init range and sets start-end byte-range-spec specified in RFC2616.
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bool GetInitRangeStartAndEnd(uint32* start, uint32* end);
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// Gets |start| and |end| index range. Returns true if there is an index range
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// and sets start-end byte-range-spec specified in RFC2616.
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bool GetIndexRangeStartAndEnd(uint32* start, uint32* end);
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// Fire events if there are no errors and Muxer::muxer_listener() is not NULL.
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void FireOnMediaStartEvent();
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void FireOnMediaEndEvent();
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scoped_ptr<MP4Segmenter> segmenter_;
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DISALLOW_COPY_AND_ASSIGN(MP4Muxer);
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};
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} // namespace mp4
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} // namespace media
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#endif // MEDIA_MP4_MP4_MUXER_H_
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