107 lines
3.3 KiB
C++
107 lines
3.3 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
|
|
//
|
|
// Defines the muxer interface.
|
|
|
|
#ifndef MEDIA_BASE_MUXER_H_
|
|
#define MEDIA_BASE_MUXER_H_
|
|
|
|
#include <memory>
|
|
#include <vector>
|
|
|
|
#include "packager/base/time/clock.h"
|
|
#include "packager/media/base/media_handler.h"
|
|
#include "packager/media/base/muxer_options.h"
|
|
#include "packager/media/base/status.h"
|
|
#include "packager/media/event/muxer_listener.h"
|
|
#include "packager/media/event/progress_listener.h"
|
|
|
|
namespace shaka {
|
|
namespace media {
|
|
|
|
class MediaSample;
|
|
|
|
/// Muxer is responsible for taking elementary stream samples and producing
|
|
/// media containers. An optional KeySource can be provided to Muxer
|
|
/// to generate encrypted outputs.
|
|
class Muxer : public MediaHandler {
|
|
public:
|
|
explicit Muxer(const MuxerOptions& options);
|
|
virtual ~Muxer();
|
|
|
|
/// Cancel a muxing job in progress. Will cause @a Run to exit with an error
|
|
/// status of type CANCELLED.
|
|
void Cancel();
|
|
|
|
/// Set a MuxerListener event handler for this object.
|
|
/// @param muxer_listener should not be NULL.
|
|
void SetMuxerListener(std::unique_ptr<MuxerListener> muxer_listener);
|
|
|
|
/// Set a ProgressListener event handler for this object.
|
|
/// @param progress_listener should not be NULL.
|
|
void SetProgressListener(std::unique_ptr<ProgressListener> progress_listener);
|
|
|
|
const std::vector<std::shared_ptr<StreamInfo>>& streams() const {
|
|
return streams_;
|
|
}
|
|
|
|
/// Inject clock, mainly used for testing.
|
|
/// The injected clock will be used to generate the creation time-stamp and
|
|
/// modification time-stamp of the muxer output.
|
|
/// If no clock is injected, the code uses base::Time::Now() to generate the
|
|
/// time-stamps.
|
|
/// @param clock is the Clock to be injected.
|
|
void set_clock(base::Clock* clock) {
|
|
clock_ = clock;
|
|
}
|
|
|
|
protected:
|
|
/// @name MediaHandler implementation overrides.
|
|
/// @{
|
|
Status InitializeInternal() override { return Status::OK; }
|
|
Status Process(std::unique_ptr<StreamData> stream_data) override;
|
|
Status OnFlushRequest(size_t input_stream_index) override { return Finalize(); }
|
|
/// @}
|
|
|
|
const MuxerOptions& options() const { return options_; }
|
|
MuxerListener* muxer_listener() { return muxer_listener_.get(); }
|
|
ProgressListener* progress_listener() { return progress_listener_.get(); }
|
|
base::Clock* clock() { return clock_; }
|
|
|
|
private:
|
|
// Initialize the muxer.
|
|
virtual Status InitializeMuxer() = 0;
|
|
|
|
// Final clean up.
|
|
virtual Status Finalize() = 0;
|
|
|
|
// Add a new sample.
|
|
virtual Status AddSample(size_t stream_id,
|
|
std::shared_ptr<MediaSample> sample) = 0;
|
|
|
|
// Finalize the segment or subsegment.
|
|
virtual Status FinalizeSegment(size_t stream_id,
|
|
std::shared_ptr<SegmentInfo> segment_info) = 0;
|
|
|
|
MuxerOptions options_;
|
|
std::vector<std::shared_ptr<StreamInfo>> streams_;
|
|
std::vector<uint8_t> current_key_id_;
|
|
bool encryption_started_ = false;
|
|
bool cancelled_;
|
|
|
|
std::unique_ptr<MuxerListener> muxer_listener_;
|
|
std::unique_ptr<ProgressListener> progress_listener_;
|
|
// An external injected clock, can be NULL.
|
|
base::Clock* clock_;
|
|
|
|
DISALLOW_COPY_AND_ASSIGN(Muxer);
|
|
};
|
|
|
|
} // namespace media
|
|
} // namespace shaka
|
|
|
|
#endif // MEDIA_BASE_MUXER_H_
|