44 lines
1.0 KiB
C
44 lines
1.0 KiB
C
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// Copyright (c) 2015 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef MEDIA_FORMATS_WEBM_OPUS_PACKET_BUILDER_H_
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#define MEDIA_FORMATS_WEBM_OPUS_PACKET_BUILDER_H_
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#include <vector>
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#include "base/memory/scoped_ptr.h"
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#include "base/memory/scoped_vector.h"
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namespace media {
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// From Opus RFC. See https://tools.ietf.org/html/rfc6716#page-14
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enum OpusConstants {
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kNumPossibleOpusConfigs = 32,
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kMinOpusPacketFrameCount = 1,
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kMaxOpusPacketFrameCount = 48
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};
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class OpusPacket {
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public:
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OpusPacket(uint8_t config, uint8_t frame_count, bool is_VBR);
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~OpusPacket();
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const uint8_t* data() const;
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int size() const;
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double duration_ms() const;
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private:
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std::vector<uint8_t> data_;
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double duration_ms_;
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DISALLOW_COPY_AND_ASSIGN(OpusPacket);
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};
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// Builds an exhaustive collection of Opus packet configurations.
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ScopedVector<OpusPacket> BuildAllOpusPackets();
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} // namespace media
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#endif // MEDIA_FORMATS_WEBM_OPUS_PACKET_BUILDER_H_
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