Audio update.

Alsa: report needed down sampling of 3/5/6 to 2 channels.
Moved alsa code into alsa module.
Initial OSS output support.

ChangeLog

@@ -1,6 +1,7 @@
 User johns
 Date:
 
+    New audio driver oss.
     Fix bug: needed down sampling of 3/5/6 to 2 channels not reported.
     Search audio sync inside PES packets, for insane dvb streams.
     Use only the needed number of surfaces.

Makefile

@@ -19,9 +19,10 @@ VERSION = $(shell grep 'static const char \*const VERSION *=' $(PLUGIN).cpp | aw
 
 CONFIG := #-DDEBUG
 #CONFIG += -DHAVE_PTHREAD_NAME
-CONFIG += $(shell pkg-config --exists libva && echo "-DUSE_VAAPI")
 CONFIG += $(shell pkg-config --exists vdpau && echo "-DUSE_VDPAU")
+CONFIG += $(shell pkg-config --exists libva && echo "-DUSE_VAAPI")
 CONFIG += $(shell pkg-config --exists alsa && echo "-DUSE_ALSA")
+#CONFIG += -DUSE_OSS
 
 ### The C++ compiler and options:
 

README.txt

@@ -30,10 +30,11 @@ A software and GPU emulated HD output device plugin for VDR.
     o planned: Video CPU/Opengl
     o planned: Software Deinterlacer
     o planned: Video XvBA/XvBA
-    o Audio FFMpeg/Analog
+    o Audio FFMpeg/Alsa/Analog
-    o Audio FFMpeg/Digital
+    o Audio FFMpeg/Alsa/Digital
-    o planned: HDMI/SPDIF Passthrough
+    o Audio FFMpeg/OSS/Analog
-    o planned: OSS support
+    o planned: Alsa HDMI/SPDIF Passthrough
+    o planned: OSS HDMI/SPDIF Passthrough
 
 To compile you must have the 'requires' installed.
 
@@ -63,6 +64,9 @@ Install:
 	cd vdr-softhddevice
 	make VDRDIR=<path-to-your-vdr-files> LIBDIR=.
 
+	You can edit Makefile to enable/disable VDPAU / VA-API / Alsa / OSS
+	support.
+
 Setup:	environment
 ------
 	Following is supported:
@@ -99,6 +103,11 @@ Setup: /etc/vdr/setup.conf
 	softhddevice.AudioDelay = 0
 	+n or -n ms
 
+Commandline:
+------------
+
+	Use vdr -h to see the command line arguments support by the plugin.
+
 Warning:
 --------
 	libav is not supported, expect many bugs with it.
@@ -112,6 +121,9 @@ Requires:
 	media-libs/alsa-lib
 		Advanced Linux Sound Architecture Library
 		http://www.alsa-project.org
+    or
+	kernel support for oss/oss4 or alsa oss emulation
+
 	x11-libs/libva
 		Video Acceleration (VA) API for Linux
 		http://www.freedesktop.org/wiki/Software/vaapi

Todo

@@ -27,7 +27,6 @@ missing:
     atmolight
     zoom/fit-zoom 4:3
     multistream handling
-    audio out with oss/oss4
     HDMI/SPDIF Passthrough
     disable screensaver
     disable window cursor
@@ -67,10 +66,8 @@ audio/alsa:
     libav supports only resample of mono to 2 channels
     ffmpeg didn't support resample of 5 to 2 channels
     CodecAudioOpen can fail "can't open audio codec" and does Fatal exit.
-    insufficient thread locking around avcodec_open/close()
 
 audio/oss:
-    add and write oss support
 
 playback of recording
     play back is too fast

softhddevice.cpp

@@ -35,6 +35,7 @@
 #include "softhddevice.h"
 extern "C" {
     #include "video.h"
+    extern void AudioPoller(void);
 }
 
 //////////////////////////////////////////////////////////////////////////////
@@ -332,6 +333,9 @@ class cSoftHdDevice:public cDevice
     virtual void GetOsdSize(int &, int &, double &);
     virtual int PlayVideo(const uchar *, int);
     //virtual int PlayTsVideo(const uchar *, int);
+#ifdef USE_OSS			// FIXME: testing only oss
+    virtual int PlayTsAudio(const uchar *, int);
+#endif
     virtual void SetAudioChannelDevice(int);
     virtual int GetAudioChannelDevice(void);
     virtual void SetDigitalAudioDevice(bool);
@@ -569,6 +573,20 @@ int cSoftHdDevice::PlayTsVideo(const uchar * Data, int Length)
 }
 #endif
 
+#ifdef USE_OSS			// FIXME: testing only oss
+///
+///	Play a TS audio packet.
+///
+///	misuse this function as audio poller
+///
+int cSoftHdDevice::PlayTsAudio(const uchar * data, int length)
+{
+    AudioPoller();
+
+    return cDevice::PlayTsAudio(data,length);
+}
+#endif
+
 uchar *cSoftHdDevice::GrabImage(int &size, bool jpeg, int quality, int sizex,
     int sizey)
 {