From b410bee3a45052cdf118a00939fd161279c415a8 Mon Sep 17 00:00:00 2001
From: Andreas Brachold <vdr07@deltab.de>
Date: Sun, 10 Jun 2007 19:02:38 +0000
Subject: - for build now 'pkg-config' needed - Use swscale to converting image

---
 liboutput/Makefile |  9 +++++++--
 liboutput/encode.c | 36 ++++++++++++++++++++++++++++++++----
 liboutput/encode.h |  2 ++
 3 files changed, 41 insertions(+), 6 deletions(-)

(limited to 'liboutput')

diff --git a/liboutput/Makefile b/liboutput/Makefile
index 126cfc8..7300393 100644
--- a/liboutput/Makefile
+++ b/liboutput/Makefile
@@ -9,6 +9,7 @@ VDRDIR = ../../../..
 
 CXX      ?= g++
 CXXFLAGS ?= -O0 -g -Wall -Woverloaded-virtual
+PKG-CONFIG ?= pkg-config
 
 -include $(VDRDIR)/Make.config
 
@@ -18,12 +19,16 @@ CXXFLAGS ?= -O0 -g -Wall -Woverloaded-virtual
 INCLUDES += -I$(VDRDIR)/include -I.
 ifdef FFMDIR
 INCLUDES += -I$(FFMDIR)/libavcodec -I$(FFMDIR)/libavutil
+DEFINES += -DFFMDIR
+else
+  INCLUDES += $(shell $(PKG-CONFIG) --cflags libavcodec)
 endif
 
 DEFINES  += -D_GNU_SOURCE
 
-ifdef FFMDIR
-DEFINES += -DFFMDIR
+ifndef WITHOUT_SWSCALER
+  DEFINES += -DHAVE_SWSCALER
+  INCLUDES += $(shell $(PKG-CONFIG) --cflags libswscale)
 endif
 
 ### The object files (add further files here):
diff --git a/liboutput/encode.c b/liboutput/encode.c
index 67d78f7..ae8bff6 100644
--- a/liboutput/encode.c
+++ b/liboutput/encode.c
@@ -1,7 +1,7 @@
 /***************************************************************************
  * encode.c
  *
- * (C) Copyright  2004-2006 Andreas Brachold    <anbr at users.berlios.de>
+ * (C) Copyright  2004-2007 Andreas Brachold    <anbr at users.berlios.de>
  *  Created: Thu Aug  5 2004
  * 
  ****************************************************************************/
@@ -26,6 +26,16 @@
 #include <string.h>
 #include <stdlib.h>
 
+extern "C" {
+#ifdef HAVE_SWSCALER
+#ifdef FFMDIR
+#include <swscale.h>
+#else
+#include <ffmpeg/swscale.h>
+#endif
+#endif
+}
+
 #include "encode.h"
 #include <vdr/device.h>
 #include <vdr/tools.h>
@@ -190,11 +200,29 @@ bool cEncode::ConvertImageToFrame(AVFrame *frame)
     }
     else
     {
-        if(img_convert((AVPicture*)frame->data, PIX_FMT_YUV420P, 
+        int result;
+#ifndef HAVE_SWSCALER
+        result=img_convert((AVPicture*)frame->data, PIX_FMT_YUV420P, 
                        (AVPicture*)m_pImageFilled, PIX_FMT_RGB24, 
-                        m_nWidth, m_nHeight))  
+                       m_nWidth, m_nHeight);
+#else
+        SwsContext* convert_ctx = sws_getContext(m_nWidth, m_nHeight, 
+                        PIX_FMT_RGB24, m_nWidth, m_nHeight, 
+                        PIX_FMT_YUV420P, SWS_BICUBIC, NULL, NULL, NULL);
+
+	    if(!convert_ctx) {
+            esyslog("imageplugin: failed to initialize swscaler context");
+            return false;
+    	}
+
+	    result=sws_scale(convert_ctx, ((AVPicture*)m_pImageFilled)->data, 
+                                      ((AVPicture*)m_pImageFilled)->linesize, 
+                         0, m_nHeight, frame->data, frame->linesize);
+	    sws_freeContext(convert_ctx);
+#endif
+        if(result < 0)
         {
-            esyslog("imageplugin: failed convert RGB to YUV");
+            esyslog("imageplugin: failed convert RGB to YUV: %X", result);
             return false;
         }
     }
diff --git a/liboutput/encode.h b/liboutput/encode.h
index 805e279..77437fe 100644
--- a/liboutput/encode.h
+++ b/liboutput/encode.h
@@ -25,11 +25,13 @@
 #ifndef _ENCODE_H
 #define _ENCODE_H
 
+extern "C" {
 #ifdef FFMDIR
 #include <avcodec.h>
 #else
 #include <ffmpeg/avcodec.h>
 #endif 
+}
 
 #include "../setup-image.h"
 //#define TESTCODE
-- 
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