72 lines
2.1 KiB
C++
72 lines
2.1 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 APP_STREAM_DESCRIPTOR_H_
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#define APP_STREAM_DESCRIPTOR_H_
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#include <stdint.h>
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#include <set>
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#include <string>
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#include "packager/media/base/container_names.h"
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namespace shaka {
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namespace media {
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/// Defines a single input/output stream, it's input source, output destination,
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/// stream selector, and optional segment template and user-specified bandwidth.
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struct StreamDescriptor {
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StreamDescriptor();
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~StreamDescriptor();
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std::string stream_selector;
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std::string input;
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std::string output;
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std::string segment_template;
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uint32_t bandwidth = 0;
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std::string language;
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MediaContainerName output_format = CONTAINER_UNKNOWN;
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std::string hls_name;
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std::string hls_group_id;
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std::string hls_playlist_name;
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uint32_t trick_play_factor = 0;
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};
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class StreamDescriptorCompareFn {
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public:
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bool operator()(const StreamDescriptor& a, const StreamDescriptor& b) {
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if (a.input == b.input) {
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if (a.stream_selector == b.stream_selector)
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// Stream with high trick_play_factor is at the beginning.
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return a.trick_play_factor > b.trick_play_factor;
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else
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return a.stream_selector < b.stream_selector;
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}
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return a.input < b.input;
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}
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};
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/// Sorted list of StreamDescriptor.
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typedef std::multiset<StreamDescriptor, StreamDescriptorCompareFn>
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StreamDescriptorList;
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/// Parses a descriptor string, and inserts into sorted list of stream
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/// descriptors.
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/// @param descriptor_string contains comma separate name-value pairs describing
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/// the stream.
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/// @param descriptor_list is a pointer to the sorted descriptor list into
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/// which the new descriptor should be inserted.
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/// @return true if successful, false otherwise. May print error messages.
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bool InsertStreamDescriptor(const std::string& descriptor_string,
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StreamDescriptorList* descriptor_list);
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} // namespace media
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} // namespace shaka
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#endif // APP_STREAM_DESCRIPTOR_H_
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