64 lines
2.3 KiB
C++
64 lines
2.3 KiB
C++
// Copyright 2014 Google Inc. All rights reserved.
|
|
//
|
|
// Use of this source code is governed by a BSD-style
|
|
// license that can be found in the LICENSE file or at
|
|
// https://developers.google.com/open-source/licenses/bsd
|
|
|
|
#ifndef MEDIA_FORMATS_MP4_MULTI_SEGMENT_SEGMENTER_H_
|
|
#define MEDIA_FORMATS_MP4_MULTI_SEGMENT_SEGMENTER_H_
|
|
|
|
#include "media/formats/mp4/segmenter.h"
|
|
|
|
namespace media {
|
|
namespace mp4 {
|
|
|
|
struct SegmentType;
|
|
|
|
/// Segmenter for MP4 live, main and simple profiles. The generated media file
|
|
/// can contain one or many segments with segment duration defined by @b
|
|
/// MuxerOptions.segment_duration. A segment can contain one or many
|
|
/// subsegments defined by @b num_subsegments_per_sidx. A subsegment can
|
|
/// contain one or many fragments with fragment duration defined by @b
|
|
/// MuxerOptions.fragment_duration. The actual segment or fragment duration
|
|
/// may not match the requested duration exactly, but will be approximated.
|
|
/// That is, the Segmenter tries to end segment/fragment at the first sample
|
|
/// with overall segment/fragment duration not smaller than defined duration
|
|
/// and yet meet SAP requirements. The generated segments are written to files
|
|
/// defined by @b MuxerOptions.segment_template if specified; otherwise,
|
|
/// the segments are appended to the main output file specified by @b
|
|
/// MuxerOptions.output_file_name.
|
|
class MultiSegmentSegmenter : public Segmenter {
|
|
public:
|
|
MultiSegmentSegmenter(const MuxerOptions& options,
|
|
scoped_ptr<FileType> ftyp,
|
|
scoped_ptr<Movie> moov);
|
|
virtual ~MultiSegmentSegmenter();
|
|
|
|
/// @name Segmenter implementation overrides.
|
|
/// @{
|
|
virtual Status Initialize(EncryptorSource* encryptor_source,
|
|
double clear_lead_in_seconds,
|
|
const std::vector<MediaStream*>& streams) OVERRIDE;
|
|
|
|
virtual bool GetInitRange(size_t* offset, size_t* size) OVERRIDE;
|
|
virtual bool GetIndexRange(size_t* offset, size_t* size) OVERRIDE;
|
|
/// @}
|
|
|
|
protected:
|
|
virtual Status FinalizeSegment() OVERRIDE;
|
|
|
|
private:
|
|
// Write segment to file.
|
|
Status WriteSegment();
|
|
|
|
scoped_ptr<SegmentType> styp_;
|
|
uint32 num_segments_;
|
|
|
|
DISALLOW_COPY_AND_ASSIGN(MultiSegmentSegmenter);
|
|
};
|
|
|
|
} // namespace mp4
|
|
} // namespace media
|
|
|
|
#endif // MEDIA_FORMATS_MP4_MULTI_SEGMENT_SEGMENTER_H_
|