mirror of
https://github.com/ZDoom/ZMusic.git
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177 lines
4.4 KiB
C++
177 lines
4.4 KiB
C++
/*
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** music_stream.cpp
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** Plays a streaming song from a StreamSource
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**
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**---------------------------------------------------------------------------
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** Copyright 2008 Randy Heit
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** Copyright 2019 Christoph Oelckers
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** All rights reserved.
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**
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** Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions
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** are met:
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**
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** 1. Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** 2. Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in the
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** documentation and/or other materials provided with the distribution.
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** 3. The name of the author may not be used to endorse or promote products
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** derived from this software without specific prior written permission.
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**
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** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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**---------------------------------------------------------------------------
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*/
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#include "zmusic/musinfo.h"
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#include "zmusic/zmusic_internal.h"
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#include "streamsources/streamsource.h"
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class StreamSong : public MusInfo
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{
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public:
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StreamSong (StreamSource *source);
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~StreamSong ();
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void Play (bool looping, int subsong) override;
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void Pause () override;
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void Resume () override;
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void Stop () override;
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bool IsPlaying () override;
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bool IsValid () const override { return m_Source != nullptr; }
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bool SetPosition (unsigned int pos) override;
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bool SetSubsong (int subsong) override;
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std::string GetStats() override;
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void ChangeSettingInt(const char *name, int value) override { if (m_Source) m_Source->ChangeSettingInt(name, value); }
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void ChangeSettingNum(const char *name, double value) override { if (m_Source) m_Source->ChangeSettingNum(name, value); }
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void ChangeSettingString(const char *name, const char *value) override { if(m_Source) m_Source->ChangeSettingString(name, value); }
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bool ServiceStream(void* buff, int len) override;
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SoundStreamInfo GetStreamInfo() const override { return m_Source->GetFormat(); }
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protected:
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StreamSource *m_Source = nullptr;
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};
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void StreamSong::Play (bool looping, int subsong)
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{
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m_Status = STATE_Stopped;
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m_Looping = looping;
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if (m_Source != nullptr)
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{
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m_Source->SetPlayMode(looping);
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m_Source->SetSubsong(subsong);
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if (m_Source->Start())
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{
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m_Status = STATE_Playing;
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}
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}
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}
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void StreamSong::Pause ()
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{
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m_Status = STATE_Paused;
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}
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void StreamSong::Resume ()
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{
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m_Status = STATE_Playing;
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}
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void StreamSong::Stop ()
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{
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m_Status = STATE_Stopped;
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}
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StreamSong::~StreamSong ()
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{
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Stop ();
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if (m_Source != nullptr)
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{
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delete m_Source;
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m_Source = nullptr;
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}
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}
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StreamSong::StreamSong (StreamSource *source)
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{
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m_Source = source;
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}
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bool StreamSong::IsPlaying ()
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{
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if (m_Status != STATE_Stopped)
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{
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return true;
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}
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return false;
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}
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//
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// StreamSong :: SetPosition
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//
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// Sets the position in ms.
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bool StreamSong::SetPosition(unsigned int pos)
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{
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if (m_Source != nullptr)
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{
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return m_Source->SetPosition(pos);
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}
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else
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{
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return false;
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}
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}
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bool StreamSong::SetSubsong(int subsong)
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{
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return m_Source->SetSubsong(subsong);
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}
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std::string StreamSong::GetStats()
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{
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std::string s1, s2;
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if (m_Source != NULL)
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{
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auto stat = m_Source->GetStats();
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s2 = stat.c_str();
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}
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if (s1.empty() && s2.empty()) return "No song loaded\n";
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if (s1.empty()) return s2;
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if (s2.empty()) return s1;
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return s1 + "\n" + s2;
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}
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bool StreamSong::ServiceStream (void *buff, int len)
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{
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bool written = m_Source->GetData(buff, len);
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if (!written)
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{
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m_Status = STATE_Stopped;
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memset((char*)buff, 0, len);
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return false;
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}
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return true;
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}
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MusInfo *OpenStreamSong(StreamSource *source)
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{
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auto song = new StreamSong(source);
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if (song->IsValid()) return song;
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delete song;
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return nullptr;
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}
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