From 089df6a2a17ec560a9c525857b4bbe43442b5ca8 Mon Sep 17 00:00:00 2001
From: Andreas Monzner <andreas.monzner@multimedia-labs.de>
Date: Tue, 3 Jan 2006 11:23:46 +0000
Subject: [PATCH] store and use previous selected audio pid

---
 lib/dvb/db.cpp             |  6 ++++--
 lib/dvb/pmt.cpp            | 30 ++++++++++++++++++++++++++++--
 lib/service/servicedvb.cpp | 29 ++++++++++++++++++++++++++++-
 3 files changed, 60 insertions(+), 5 deletions(-)

diff --git a/lib/dvb/db.cpp b/lib/dvb/db.cpp
index 65b42def..3920053d 100644
--- a/lib/dvb/db.cpp
+++ b/lib/dvb/db.cpp
@@ -220,7 +220,10 @@ int eDVBService::getCachePID(cacheID id)
 
 void eDVBService::setCachePID(cacheID id, int pid)
 {
-	m_cache[id] = pid;
+	if (pid == -1)
+		m_cache.erase(id);
+	else
+		m_cache[id] = pid;
 }
 
 DEFINE_REF(eDVBDB);
@@ -357,7 +360,6 @@ void eDVBDB::load()
 		fgets(line, 256, f);
 		if (strlen(line))
 			line[strlen(line)-1]=0;
-
 		std::string str=line;
 
 		if (str[1]!=':')	// old ... (only service_provider)
diff --git a/lib/dvb/pmt.cpp b/lib/dvb/pmt.cpp
index 6b2c835c..a4e10e16 100644
--- a/lib/dvb/pmt.cpp
+++ b/lib/dvb/pmt.cpp
@@ -129,6 +129,15 @@ int eDVBServicePMTHandler::getProgramInfo(struct program &program)
 
 	if (!m_PMT.getCurrent(ptr))
 	{
+		int cached_apid_ac3 = -1;
+		int cached_apid_mpeg = -1;
+		int cached_vpid = -1;
+		if ( m_service && !m_service->cacheEmpty() )
+		{
+			cached_vpid = m_service->getCachePID(eDVBService::cVPID);
+			cached_apid_mpeg = m_service->getCachePID(eDVBService::cAC3PID);
+			cached_apid_ac3 = m_service->getCachePID(eDVBService::cAPID);
+		}
 		eDVBTableSpec table_spec;
 		ptr->getSpec(table_spec);
 		program.pmtPid = table_spec.pid < 0x1fff ? table_spec.pid : -1;
@@ -201,9 +210,26 @@ int eDVBServicePMTHandler::getProgramInfo(struct program &program)
 					break;
 				}
 				if (isaudio)
-					program.audioStreams.push_back(audio);
+				{
+					if ( !program.audioStreams.empty() &&
+						( audio.pid == cached_apid_ac3 || audio.pid == cached_apid_mpeg) )
+					{
+						program.audioStreams.push_back(program.audioStreams[0]);
+						program.audioStreams[0] = audio;
+					}
+					else
+						program.audioStreams.push_back(audio);
+				}
 				else if (isvideo)
-					program.videoStreams.push_back(video);
+				{
+					if ( !program.videoStreams.empty() && video.pid == cached_vpid )
+					{
+						program.videoStreams.push_back(program.videoStreams[0]);
+						program.videoStreams[0] = video;
+					}
+					else
+						program.videoStreams.push_back(video);
+				}
 				else
 					continue;
 				if ( cadescriptors > 0 )
diff --git a/lib/service/servicedvb.cpp b/lib/service/servicedvb.cpp
index cad2ea08..9cba0aaf 100644
--- a/lib/service/servicedvb.cpp
+++ b/lib/service/servicedvb.cpp
@@ -8,6 +8,7 @@
 
 #include <lib/dvb/dvb.h>
 #include <lib/dvb/db.h>
+#include <lib/dvb/decoder.h>
 
 #include <lib/service/servicedvbrecord.h>
 #include <lib/dvb/metaparser.h>
@@ -613,8 +614,17 @@ void eDVBServicePlay::serviceEvent(int event)
 				/* don't worry about non-existing services, nor pvr services */
 			if (m_dvb_service && !m_is_pvr)
 			{
+				if (apidtype == eDVBAudio::aMPEG)
+				{
+					m_dvb_service->setCachePID(eDVBService::cAPID, apid);
+					m_dvb_service->setCachePID(eDVBService::cAC3PID, -1);
+				}
+				else
+				{
+					m_dvb_service->setCachePID(eDVBService::cAPID, -1);
+					m_dvb_service->setCachePID(eDVBService::cAC3PID, apid);
+				}
 				m_dvb_service->setCachePID(eDVBService::cVPID, vpid);
-				m_dvb_service->setCachePID(eDVBService::cAPID, apid);
 				m_dvb_service->setCachePID(eDVBService::cPCRPID, pcrpid);
 			}
 		}
@@ -979,6 +989,23 @@ int eDVBServicePlay::selectAudioStream(int i)
 	if (m_decoder->setAudioPID(program.audioStreams[i].pid, program.audioStreams[i].type))
 		return -4;
 
+	if (m_dvb_service && !m_is_pvr)
+	{
+		if (m_dvb_service && !m_is_pvr)
+		{
+			if (program.audioStreams[i].type == eDVBAudio::aMPEG)
+			{
+				m_dvb_service->setCachePID(eDVBService::cAPID, program.audioStreams[i].pid);
+				m_dvb_service->setCachePID(eDVBService::cAC3PID, -1);
+			}
+			else
+			{
+				m_dvb_service->setCachePID(eDVBService::cAPID, -1);
+				m_dvb_service->setCachePID(eDVBService::cAC3PID, program.audioStreams[i].pid);
+			}
+		}
+	}
+
 	m_current_audio_stream = i;
 
 	return 0;
-- 
2.30.2