64 lines
2.2 KiB
C++
64 lines
2.2 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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#ifndef MEDIA_FORMATS_MP4_MULTI_SEGMENT_SEGMENTER_H_
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#define MEDIA_FORMATS_MP4_MULTI_SEGMENT_SEGMENTER_H_
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#include "packager/media/formats/mp4/segmenter.h"
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namespace shaka {
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namespace media {
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namespace mp4 {
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struct SegmentType;
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/// Segmenter for MP4 live, main and simple profiles. The generated media file
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/// can contain one or many segments with segment duration defined by @b
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/// MuxerOptions.segment_duration. A segment can contain one or many
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/// subsegments defined by @b num_subsegments_per_sidx. A subsegment can
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/// contain one or many fragments with fragment duration defined by @b
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/// MuxerOptions.fragment_duration. The actual segment or fragment duration
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/// may not match the requested duration exactly, but will be approximated.
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/// That is, the Segmenter tries to end segment/fragment at the first sample
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/// with overall segment/fragment duration not smaller than defined duration
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/// and yet meet SAP requirements. The generated segments are written to files
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/// defined by @b MuxerOptions.segment_template if specified; otherwise,
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/// the segments are appended to the main output file specified by @b
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/// MuxerOptions.output_file_name.
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class MultiSegmentSegmenter : public Segmenter {
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public:
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MultiSegmentSegmenter(const MuxerOptions& options,
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scoped_ptr<FileType> ftyp,
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scoped_ptr<Movie> moov);
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~MultiSegmentSegmenter() override;
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/// @name Segmenter implementation overrides.
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/// @{
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bool GetInitRange(size_t* offset, size_t* size) override;
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bool GetIndexRange(size_t* offset, size_t* size) override;
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/// @}
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private:
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// Segmenter implementation overrides.
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Status DoInitialize() override;
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Status DoFinalize() override;
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Status DoFinalizeSegment() override;
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// Write segment to file.
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Status WriteSegment();
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scoped_ptr<SegmentType> styp_;
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uint32_t num_segments_;
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DISALLOW_COPY_AND_ASSIGN(MultiSegmentSegmenter);
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};
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} // namespace mp4
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} // namespace media
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} // namespace shaka
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#endif // MEDIA_FORMATS_MP4_MULTI_SEGMENT_SEGMENTER_H_
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