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/*
* Copyright (C) 2005-2013 Team XBMC
* http://xbmc.org
*
* This Program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This Program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with XBMC; see the file COPYING. If not, see
* <http://www.gnu.org/licenses/>.
*
*/
#include "DVDCodecs/DVDCodecs.h"
#include "DVDInputStreams/DVDInputStreamHttp.h"
#include "DVDDemuxShoutcast.h"
#include "DVDDemuxUtils.h"
#include "DVDClock.h" // for DVD_TIME_BASE
#include "../../../utils/HttpHeader.h"
#define ICY_NOTICE1 "icy-notice1" // string
#define ICY_NOTICE2 "icy-notice2" // string
#define ICY_NAME "icy-name" // string
#define ICY_GENRE "icy-genre" // string
#define ICY_URL "icy-url" // string
#define ICY_PUBLIC "icy-pub" // int (1 / 0)
#define ICY_BITRATE "icy-br" // int (bitrate = val * 1000 ?)
#define ICY_METAINTERVAL "icy-metaint" // int
#define CONTENT_TYPE_MP3 "audio/mpeg"
#define CONTENT_TYPE_AAC "audio/aac"
#define CONTENT_TYPE_AACPLUS "audio/aacp"
// class CDemuxStreamVideoFFmpeg
void CDemuxStreamAudioShoutcast::GetStreamInfo(std::string& strInfo)
{
strInfo = "Shoutcast";
}
CDVDDemuxShoutcast::CDVDDemuxShoutcast() : CDVDDemux()
{
m_pInput = NULL;
m_pDemuxStream = NULL;
m_iMetaStreamInterval = 0;
}
CDVDDemuxShoutcast::~CDVDDemuxShoutcast()
{
Dispose();
}
bool CDVDDemuxShoutcast::Open(CDVDInputStream* pInput)
{
Dispose();
m_pInput = pInput;
// the input stream should be a http stream
if (!pInput->IsStreamType(DVDSTREAM_TYPE_HTTP)) return false;
CDVDInputStreamHttp* pInputStreamHttp = (CDVDInputStreamHttp*)pInput;
CHttpHeader* pHeader = pInputStreamHttp->GetHttpHeader();
std::string strMetaInt = pHeader->GetValue(ICY_METAINTERVAL);
std::string strMimeType = pHeader->GetMimeType();
// create new demuxer stream
m_pDemuxStream = new CDemuxStreamAudioShoutcast();
m_pDemuxStream->iId = 0;
m_pDemuxStream->iPhysicalId = 0;
m_pDemuxStream->iDuration = 0;
m_pDemuxStream->iChannels = 2;
m_pDemuxStream->iSampleRate = 0;
// set meta interval
m_iMetaStreamInterval = atoi(strMetaInt.c_str());
if (stricmp(strMimeType.c_str(), CONTENT_TYPE_AAC) == 0 ||
stricmp(strMimeType.c_str(), CONTENT_TYPE_AACPLUS) == 0)
{
// need an aac decoder first
m_pDemuxStream->codec = AV_CODEC_ID_AAC;
}
else // (stricmp(strMimeType, CONTENT_TYPE_MP3) == 0)
{
// default to mp3
m_pDemuxStream->codec = AV_CODEC_ID_MP3;
}
return true;
}
void CDVDDemuxShoutcast::Dispose()
{
if (m_pDemuxStream) delete m_pDemuxStream;
m_pDemuxStream = NULL;
m_pInput = NULL;
}
void CDVDDemuxShoutcast::Reset()
{
CDVDInputStream* pInputStream = m_pInput;
Dispose();
Open(pInputStream);
}
void CDVDDemuxShoutcast::Flush()
{
}
DemuxPacket* CDVDDemuxShoutcast::Read()
{
// XXX
// if meta interval is greater than FileCurl's max read size (currently 64k)
// it will simply fail becuse the meta-interval will get incorrect
int iDataToRead = SHOUTCAST_BUFFER_SIZE;
if (m_iMetaStreamInterval > 0) iDataToRead = m_iMetaStreamInterval;
DemuxPacket* pPacket;
pPacket = CDVDDemuxUtils::AllocateDemuxPacket(iDataToRead);
if (pPacket)
{
pPacket->dts = DVD_NOPTS_VALUE;
pPacket->pts = DVD_NOPTS_VALUE;
pPacket->iStreamId = 0;
// read the data
int iRead = m_pInput->Read(pPacket->pData, iDataToRead);
pPacket->iSize = iRead;
if (iRead <= 0)
{
CDVDDemuxUtils::FreeDemuxPacket(pPacket);
pPacket = NULL;
}
}
if (m_iMetaStreamInterval > 0)
{
// we already have read m_iMetaStreamInterval bytes of streaming data
// metadata follows
uint8_t l;
int iRead = m_pInput->Read(&l, 1);
if (iRead > 0)
{
int iMetaLength = l * 16;
if (iMetaLength > 0)
{
// iMetaLength cannot be larger then 16 * 255
uint8_t buffer[16 * 255];
// skip meta data for now
m_pInput->Read(buffer, iMetaLength);
}
}
}
return pPacket;
}
bool CDVDDemuxShoutcast::SeekTime(int time, bool backwords, double* startpts)
{
return false;
}
int CDVDDemuxShoutcast::GetStreamLength()
{
return 0;
}
CDemuxStream* CDVDDemuxShoutcast::GetStream(int iStreamId)
{
return m_pDemuxStream;
}
int CDVDDemuxShoutcast::GetNrOfStreams()
{
return 1;
}
std::string CDVDDemuxShoutcast::GetFileName()
{
if(m_pInput)
return m_pInput->GetFileName();
else
return "";
}
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