libva-1.0.6

 1) Refinement for VA_TRACE, new LIBVA_FOOL, see the description in va_trace.c/va_fool.c
 2) vaPutSurface flag VA_ENABLE_BLEND to blend the surface with a color
 3) libva.spec for RPM package
 4) Update VAAPI for dynamic bit rate control/AIR/maximum slice size ctrl
 5) Added VA_STATUS_ERROR_DECODING/ENCODING_ERROR to report decode/encode error
 6) Add config.h/va_vesion.h for Android
 7) Update "vainfo.c" for Android

Signed-off-by: Austin Yuan <shengquan.yuan@gmail.com>
Signed-off-by: Binglin Chen <binglin.chen@intel.com>
Signed-off-by: Fei Jiang <fei.jiang@intel.com>
Signed-off-by: Elaine Wang <elaine.wang@intel.com>
Signed-off-by: Ren Zhaohan <zhaohan.ren@intel.com>
Signed-off-by: Jerry Dong <jerry.dong@intel.com>

Signed-off-by: Austin Yuan <shengquan.yuan@gmail.com>

9 files changed, 1379 insertions, 503 deletions

diff --git a/va/Android.mk b/va/Android.mk
index 848aa83..494f7c7 100644
--- a/va/Android.mk
+++ b/va/Android.mk
@@ -13,6 +13,7 @@ include $(CLEAR_VARS)
 LOCAL_SRC_FILES := \
 	va.c \
 	va_trace.c \
+	va_fool.c 
 
 LOCAL_CFLAGS += \
 	-DANDROID \
diff --git a/va/Makefile.am b/va/Makefile.am
index 8451a38..685fb12 100644
--- a/va/Makefile.am
+++ b/va/Makefile.am
@@ -27,7 +27,7 @@ INCLUDES = \
 LDADD = \
 	$(LIBVA_LT_LDFLAGS)
 
-libva_la_SOURCES = va.c va_trace.c
+libva_la_SOURCES = va.c va_trace.c va_fool.c
 libva_ladir = $(libdir)
 libva_la_LDFLAGS = $(LDADD) -no-undefined
 libva_la_LIBADD = $(LIBVA_LIBS) -ldl
diff --git a/va/android/va_android.cpp b/va/android/va_android.cpp
index 4eb90a2..b4727aa 100644
--- a/va/android/va_android.cpp
+++ b/va/android/va_android.cpp
@@ -250,7 +250,7 @@ VADisplay vaGetDisplay (
             pDisplayContext->vaDestroy       = va_DisplayContextDestroy;
             pDisplayContext->vaGetDriverName = va_DisplayContextGetDriverName;
             pDisplayContexts                 = pDisplayContext;
-            pDriverContext->dri_state 	   = dri_state;
+            pDriverContext->dri_state 	     = dri_state;
             dpy                              = (VADisplay)pDisplayContext;
         }
         else
@@ -272,6 +272,33 @@ VADisplay vaGetDisplay (
 
 
 #ifdef ANDROID
+extern "C"  {
+    extern int fool_postp; /* do nothing for vaPutSurface if set */
+    extern int trace_flag; /* trace vaPutSurface parameters */
+
+    void va_TracePutSurface (
+        VADisplay dpy,
+        VASurfaceID surface,
+        void *draw, /* the target Drawable */
+        short srcx,
+        short srcy,
+        unsigned short srcw,
+        unsigned short srch,
+        short destx,
+        short desty,
+        unsigned short destw,
+        unsigned short desth,
+        VARectangle *cliprects, /* client supplied clip list */
+        unsigned int number_cliprects, /* number of clip rects in the clip list */
+        unsigned int flags /* de-interlacing flags */
+        );
+}
+
+#define VA_TRACE(trace_func,...)                \
+    if (trace_flag) {                           \
+        trace_func(__VA_ARGS__);                \
+    }
+
 VAStatus vaPutSurface (
     VADisplay dpy,
     VASurfaceID surface,
@@ -291,8 +318,16 @@ VAStatus vaPutSurface (
 {
     VADriverContextP ctx;
 
+    if (fool_postp)
+        return VA_STATUS_SUCCESS;
+
     CHECK_DISPLAY(dpy);
     ctx = CTX(dpy);
+
+    VA_TRACE(va_TracePutSurface, dpy, surface, static_cast<void*>(&draw), srcx, srcy, srcw, srch,
+             destx, desty, destw, desth,
+             cliprects, number_cliprects, flags );
+    
     return ctx->vtable.vaPutSurface( ctx, surface, static_cast<void*>(&draw), srcx, srcy, srcw, srch, 
                                      destx, desty, destw, desth,
                                      cliprects, number_cliprects, flags );
diff --git a/va/va.c b/va/va.c
index c0722ba..0320ed3 100644
--- a/va/va.c
+++ b/va/va.c
@@ -26,6 +26,7 @@
 #include "va.h"
 #include "va_backend.h"
 #include "va_trace.h"
+#include "va_fool.h"
 #include "config.h"
 
 #include <assert.h>
@@ -57,17 +58,65 @@
 extern int trace_flag;
 #define VA_TRACE(trace_func,...)                \
     if (trace_flag) {                           \
-        va_TraceMsg("========%s========\n", __func__);   \
         trace_func(__VA_ARGS__);                \
     }
 
+/*
+ * read a config "env" for libva.conf or from environment setting
+ * liva.conf has higher priority
+ * return 0: the "env" is set, and the value is copied into env_value
+ *        1: the env is not set
+ */
+int va_parseConfig(char *env, char *env_value)
+{
+    char *token, *value, *saveptr;
+    char oneline[1024];
+    FILE *fp=NULL;
+
+
+    if (env == NULL)
+        return 1;
+    
+    fp = fopen("/etc/libva.conf", "r");
+    while (fp && (fgets(oneline, 1024, fp) != NULL)) {
+	if (strlen(oneline) == 1)
+	    continue;
+        token = strtok_r(oneline, "=\n", &saveptr);
+	value = strtok_r(NULL, "=\n", &saveptr);
+
+	if (NULL == token || NULL == value)
+	    continue;
+
+        if (strcmp(token, env) == 0) {
+            if (env_value)
+                strncpy(env_value,value, 1024);
+
+            fclose(fp);
+
+            return 0;
+        }
+    }
+    if (fp)
+        fclose(fp);
+
+    /* no setting in config file, use env setting */
+    if (getenv(env)) {
+        if (env_value)
+            strncpy(env_value, getenv(env), 1024);
+
+        return 0;
+    }
+    
+    return 1;
+}
+
 int vaDisplayIsValid(VADisplay dpy)
 {
     VADisplayContextP pDisplayContext = (VADisplayContextP)dpy;
     return pDisplayContext && (pDisplayContext->vadpy_magic == VA_DISPLAY_MAGIC) && pDisplayContext->vaIsValid(pDisplayContext);
 }
 
-static void va_errorMessage(const char *msg, ...)
+void va_errorMessage(const char *msg, ...)
 {
     va_list args;
 
@@ -77,7 +126,7 @@ static void va_errorMessage(const char *msg, ...)
     va_end(args);
 }
 
-static void va_infoMessage(const char *msg, ...)
+void va_infoMessage(const char *msg, ...)
 {
     va_list args;
 
@@ -340,7 +389,9 @@ VAStatus vaInitialize (
 
     CHECK_DISPLAY(dpy);
 
-    va_TraceInit();
+    va_TraceInit(dpy);
+
+    va_FoolInit(dpy);
 
     va_infoMessage("libva version %s\n", VA_VERSION_S);
 
@@ -397,7 +448,9 @@ VAStatus vaTerminate (
   if (VA_STATUS_SUCCESS == vaStatus)
       pDisplayContext->vaDestroy(pDisplayContext);
 
-  va_TraceEnd();
+  va_TraceEnd(dpy);
+
+  va_FoolEnd(dpy);
 
   return vaStatus;
 }
@@ -511,6 +564,7 @@ VAStatus vaCreateConfig (
   ctx = CTX(dpy);
 
   VA_TRACE(va_TraceCreateConfig, dpy, profile, entrypoint, attrib_list, num_attribs, config_id);
+  va_FoolCreateConfig(dpy, profile, entrypoint, attrib_list, num_attribs, config_id);
   return ctx->vtable.vaCreateConfig ( ctx, profile, entrypoint, attrib_list, num_attribs, config_id );
 }
 
@@ -552,11 +606,15 @@ VAStatus vaCreateSurfaces (
 )
 {
   VADriverContextP ctx;
+  VAStatus ret;
   CHECK_DISPLAY(dpy);
   ctx = CTX(dpy);
 
   VA_TRACE(va_TraceCreateSurface, dpy, width, height, format, num_surfaces, surfaces);
-  return ctx->vtable.vaCreateSurfaces( ctx, width, height, format, num_surfaces, surfaces );
+
+  ret = ctx->vtable.vaCreateSurfaces( ctx, width, height, format, num_surfaces, surfaces );
+  va_FoolCreateSurfaces(dpy, width, height, format, num_surfaces, surfaces);
+  return ret;
 }
 
 
@@ -619,6 +677,8 @@ VAStatus vaCreateBuffer (
   CHECK_DISPLAY(dpy);
   ctx = CTX(dpy);
 
+  if (va_FoolCreateBuffer(dpy, context, type, size, num_elements, data, buf_id))
+      return VA_STATUS_SUCCESS;
   return ctx->vtable.vaCreateBuffer( ctx, context, type, size, num_elements, data, buf_id);
 }
 
@@ -643,10 +703,19 @@ VAStatus vaMapBuffer (
 )
 {
   VADriverContextP ctx;
+  VAStatus va_status;
+  
   CHECK_DISPLAY(dpy);
   ctx = CTX(dpy);
+  
+  if (va_FoolMapBuffer(dpy, buf_id, pbuf))
+      return VA_STATUS_SUCCESS;
+  va_status = ctx->vtable.vaMapBuffer( ctx, buf_id, pbuf );
 
-  return ctx->vtable.vaMapBuffer( ctx, buf_id, pbuf );
+  if (va_status == VA_STATUS_SUCCESS)
+      VA_TRACE(va_TraceMapBuffer, dpy, buf_id, pbuf);
+  
+  return va_status;
 }
 
 VAStatus vaUnmapBuffer (
@@ -658,6 +727,8 @@ VAStatus vaUnmapBuffer (
   CHECK_DISPLAY(dpy);
   ctx = CTX(dpy);
 
+  if (va_FoolUnmapBuffer(dpy, buf_id))
+      return VA_STATUS_SUCCESS;
   return ctx->vtable.vaUnmapBuffer( ctx, buf_id );
 }
 
@@ -699,7 +770,11 @@ VAStatus vaBeginPicture (
   CHECK_DISPLAY(dpy);
   ctx = CTX(dpy);
 
-  VA_TRACE(va_TraceBeginPicture, ctx, context, render_target);
+  VA_TRACE(va_TraceBeginPicture, dpy, context, render_target);
+
+  if (va_FoolBeginPicture(dpy, context, render_target))
+      return VA_STATUS_SUCCESS;
+
   return ctx->vtable.vaBeginPicture( ctx, context, render_target );
 }
 
@@ -714,7 +789,11 @@ VAStatus vaRenderPicture (
   CHECK_DISPLAY(dpy);
   ctx = CTX(dpy);
 
+  if (va_FoolRenderPicture(dpy, context, buffers, num_buffers))
+      return VA_STATUS_SUCCESS;
+
   VA_TRACE(va_TraceRenderPicture, dpy, context, buffers, num_buffers);
+
   return ctx->vtable.vaRenderPicture( ctx, context, buffers, num_buffers );
 }
 
@@ -728,8 +807,15 @@ VAStatus vaEndPicture (
   CHECK_DISPLAY(dpy);
   ctx = CTX(dpy);
 
+  if (va_FoolEndPicture(dpy, context)) {
+    VA_TRACE(va_TraceEndPicture, dpy, context);
+    return VA_STATUS_SUCCESS;
+  }
+  
   va_status = ctx->vtable.vaEndPicture( ctx, context );
+  
   VA_TRACE(va_TraceEndPicture, dpy, context);
+
   return va_status;
 }
 
@@ -742,6 +828,9 @@ VAStatus vaSyncSurface (
   CHECK_DISPLAY(dpy);
   ctx = CTX(dpy);
 
+  if (va_FoolSyncSurface( dpy, render_target))
+    return VA_STATUS_SUCCESS;
+  
   return ctx->vtable.vaSyncSurface( ctx, render_target );
 }
 
@@ -953,6 +1042,8 @@ VAStatus vaQuerySubpictureFormats (
   CHECK_DISPLAY(dpy);
   ctx = CTX(dpy);
 
+  if (va_FoolQuerySubpictureFormats(dpy, format_list, flags, num_formats))
+      return VA_STATUS_SUCCESS;
   return ctx->vtable.vaQuerySubpictureFormats ( ctx, format_list, flags, num_formats);
 }
 
@@ -1096,10 +1187,16 @@ int vaMaxNumDisplayAttributes (
     VADisplay dpy
 )
 {
+  int tmp;
+    
   if( !vaDisplayIsValid(dpy) )
       return 0;
   
-  return CTX(dpy)->max_display_attributes;
+  tmp = CTX(dpy)->max_display_attributes;
+
+  VA_TRACE(va_TraceMaxNumDisplayAttributes, dpy, tmp);
+  
+  return tmp;
 }
 
 /* 
@@ -1118,7 +1215,14 @@ VAStatus vaQueryDisplayAttributes (
   CHECK_DISPLAY(dpy);
   ctx = CTX(dpy);
 
-  return ctx->vtable.vaQueryDisplayAttributes ( ctx, attr_list, num_attributes );
+  VAStatus va_status;
+  
+  va_status = ctx->vtable.vaQueryDisplayAttributes ( ctx, attr_list, num_attributes );
+
+  VA_TRACE(va_TraceQueryDisplayAttributes, dpy, attr_list, num_attributes);
+
+  return va_status;
+  
 }
 
 /* 
@@ -1137,7 +1241,13 @@ VAStatus vaGetDisplayAttributes (
   CHECK_DISPLAY(dpy);
   ctx = CTX(dpy);
 
-  return ctx->vtable.vaGetDisplayAttributes ( ctx, attr_list, num_attributes );
+  VAStatus va_status;
+  
+  va_status = ctx->vtable.vaGetDisplayAttributes ( ctx, attr_list, num_attributes );
+
+  VA_TRACE(va_TraceGetDisplayAttributes, dpy, attr_list, num_attributes);
+  
+  return va_status;
 }
 
 /* 
@@ -1156,6 +1266,9 @@ VAStatus vaSetDisplayAttributes (
   CHECK_DISPLAY(dpy);
   ctx = CTX(dpy);
 
+  VA_TRACE(va_TraceSetDisplayAttributes, dpy, attr_list, num_attributes);
+
+  
   return ctx->vtable.vaSetDisplayAttributes ( ctx, attr_list, num_attributes );
 }
 
diff --git a/va/va.h b/va/va.h
index 0f12dfb..7f24a85 100644
--- a/va/va.h
+++ b/va/va.h
@@ -128,6 +128,8 @@ typedef int VAStatus;	/* Return status type from functions */
 #define VA_STATUS_ERROR_UNIMPLEMENTED           0x00000014
 #define VA_STATUS_ERROR_SURFACE_IN_DISPLAYING   0x00000015
 #define VA_STATUS_ERROR_INVALID_IMAGE_FORMAT    0x00000016
+#define VA_STATUS_ERROR_DECODING_ERROR          0x00000017
+#define VA_STATUS_ERROR_ENCODING_ERROR          0x00000018
 #define VA_STATUS_ERROR_UNKNOWN			0xFFFFFFFF
 
 /* De-interlacing flags for vaPutSurface() */
@@ -136,11 +138,19 @@ typedef int VAStatus;	/* Return status type from functions */
 #define VA_BOTTOM_FIELD         0x00000002
 
 /*
+ * Enabled the positioning/cropping/blending feature:
+ * 1, specify the video playback position in the isurface
+ * 2, specify the cropping info for video playback
+ * 3, encoded video will blend with background color
+ */
+#define VA_ENABLE_BLEND         0x00000004 /* video area blend with the constant color */ 
+    
+/*
  * Clears the drawable with background color.
  * for hardware overlay based implementation this flag
  * can be used to turn off the overlay
  */
-#define VA_CLEAR_DRAWABLE       0x00000008 
+#define VA_CLEAR_DRAWABLE       0x00000008
 
 /* Color space conversion flags for vaPutSurface() */
 #define VA_SRC_BT601            0x00000010
@@ -273,6 +283,7 @@ typedef struct _VAConfigAttrib {
 #define VA_RC_NONE	0x00000001	
 #define VA_RC_CBR	0x00000002	
 #define VA_RC_VBR	0x00000004	
+#define VA_RC_VCM	0x00000008 /* video conference mode */
 
 /*
  * if an attribute is not applicable for a given
@@ -502,8 +513,75 @@ typedef enum
     VAEncSliceParameterBufferType	= 24,
     VAEncH264VUIBufferType		= 25,
     VAEncH264SEIBufferType		= 26,
+    VAEncMiscParameterBufferType	= 27,
+    VABufferTypeMax                     = 0xff
 } VABufferType;
 
+typedef enum
+{
+    VAEncMiscParameterTypeFrameRate 	= 0,
+    VAEncMiscParameterTypeRateControl  	= 1,
+    VAEncMiscParameterTypeMaxSliceSize	= 2,
+    VAEncMiscParameterTypeAIR    	= 3,
+} VAEncMiscParameterType;
+
+/*
+ *  For application, e.g. set a new bitrate
+ *    VABufferID buf_id;
+ *    VAEncMiscParameterBuffer *misc_param;
+ *    VAEncMiscParameterRateControl *misc_rate_ctrl;
+ * 
+ *    vaCreateBuffer(dpy, context, VAEncMiscParameterBufferType,
+ *              sizeof(VAEncMiscParameterBuffer) + sizeof(VAEncMiscParameterRateControl),
+ *              1, NULL, &buf_id);
+ *
+ *    vaMapBuffer(dpy,buf_id,(void **)&misc_param);
+ *    misc_param->type = VAEncMiscParameterTypeRateControl;
+ *    misc_rate_ctrl= (VAEncMiscParameterRateControl *)misc_param->data;
+ *    misc_rate_ctrl->bits_per_second = 6400000;
+ *    vaUnmapBuffer(dpy, buf_id);
+ *    vaRenderPicture(dpy, context, &buf_id, 1);
+ */
+typedef struct _VAEncMiscParameterBuffer
+{
+    VAEncMiscParameterType type;
+    unsigned int data[0];
+} VAEncMiscParameterBuffer;
+
+typedef struct _VAEncMiscParameterRateControl
+{
+    unsigned int bits_per_second; /* this is the maximum bit-rate to be constrained by the rate control implementation */
+    unsigned int target_percentage; /* this is the bit-rate the rate control is targeting, as a percentage of the maximum bit-rate */
+                                    /* for example if target_percentage is 95 then the rate control will target a bit-rate that is */
+                                    /* 95% of the maximum bit-rate */
+    unsigned int window_size; /* windows size in milliseconds. For example if this is set to 500, then the rate control will guarantee the */
+                              /* target bit-rate over a 500 ms window */
+    unsigned int initial_qp;  /* initial QP at I frames */
+    unsigned int min_qp;     
+} VAEncMiscParameterRateControl;
+
+typedef struct _VAEncMiscParameterFrameRate
+{
+    unsigned int framerate;
+} VAEncMiscParameterFrameRate;
+
+/*
+ * Allow a maximum slice size to be specified (in bits).
+ * The encoder will attempt to make sure that individual slices do not exceed this size
+ * Or to signal applicate if the slice size exceed this size, see "status" of VACodedBufferSegment
+ */
+typedef struct _VAEncMiscParameterMaxSliceSize
+{
+    unsigned int max_slice_size;
+} VAEncMiscParameterMaxSliceSize;
+
+typedef struct _VAEncMiscParameterAIR
+{
+    unsigned int air_num_mbs;
+    unsigned int air_threshold;
+    unsigned int air_auto; /* if set to 1 then hardware auto-tune the AIR threshold */
+} VAEncMiscParameterAIR;
+
 
 /* 
  * There will be cases where the bitstream buffer will not have enough room to hold
@@ -1115,6 +1193,8 @@ typedef struct _VAEncSequenceParameterBufferH264
     unsigned char vui_flag;
 } VAEncSequenceParameterBufferH264;
 
+#define H264_LAST_PICTURE_EOSEQ     0x01 /* the last picture in the sequence */
+#define H264_LAST_PICTURE_EOSTREAM  0x02 /* the last picture in the stream */
 typedef struct _VAEncPictureParameterBufferH264
 {
     VASurfaceID reference_picture;
@@ -1122,9 +1202,7 @@ typedef struct _VAEncPictureParameterBufferH264
     VABufferID coded_buf;
     unsigned short picture_width;
     unsigned short picture_height;
-    unsigned char last_picture; /* if set to 1 it indicates the last picture in the sequence
-                                 * if set to 2 it indicates the last picture of the stream
-                                 */
+    unsigned char last_picture;
 } VAEncPictureParameterBufferH264;
 
 /****************************
@@ -1225,9 +1303,26 @@ VAStatus vaBufferSetNumElements (
 /*
  * device independent data structure for codedbuffer
  */
-typedef  struct _VACodedBufferSegment {
-    unsigned int size; /* size of the data buffer in the coded buffer segment, in bytes */
-    unsigned int bit_offset;/* bit offset into the data buffer where valid bitstream data begins */
+
+/* 
+ * FICTURE_AVE_QP(bit7-0): The average Qp value used during this frame
+ * LARGE_SLICE(bit8):At least one slice in the current frame was large
+ *              enough for the encoder to attempt to limit its size.
+ * SLICE_OVERFLOW(bit9): At least one slice in the current frame has
+ *              exceeded the maximum slice size specified.
+ */
+#define VA_CODED_BUF_STATUS_PICTURE_AVE_QP_MASK         0xff
+#define VA_CODED_BUF_STATUS_LARGE_SLICE_MASK            0x100
+#define VA_CODED_BUF_STATUS_SLICE_OVERFLOW_MASK         0x200
+
+/*
+ * device independent data structure for codedbuffer
+ */
+typedef  struct _VACodedBufferSegment  {
+    unsigned int size;/* size of the data buffer in the coded buffer segment, in bytes */
+    unsigned int bit_offset; /* bit offset into the data buffer where valid bitstream data begins */
+    unsigned int status; /* status set by the driver on the coded buffer*/
+    unsigned int reserved; /* for future use */
     void *buf; /* pointer to the beginning of the data buffer in the coded buffer segment */
     void *next; /* pointer to the next VACodedBufferSegment */
 } VACodedBufferSegment;
@@ -1713,7 +1808,10 @@ typedef enum
     VADisplayAttribContrast		= 1,
     VADisplayAttribHue			= 2,
     VADisplayAttribSaturation		= 3,
-    /* client can specifiy a background color for the target window */
+    /* client can specifiy a background color for the target window
+     * the new feature of video conference,
+     * the uncovered area of the surface is filled by this color
+     * also it will blend with the decoded video color*/
     VADisplayAttribBackgroundColor      = 4,
     /*
      * this is a gettable only attribute. For some implementations that use the
@@ -1739,7 +1837,15 @@ typedef enum
      * For type VADisplayAttribCSCMatrix, "value" field is a pointer to the color
      * conversion matrix. Each element in the matrix is float-point
      */
-    VADisplayAttribCSCMatrix           = 12
+    VADisplayAttribCSCMatrix           = 12,
+    /* specify the constant color used to blend with video surface
+     * Cd = Cv*Cc*Ac + Cb *(1 - Ac) C means the constant RGB
+     *      d: the final color to overwrite into the frame buffer 
+     *      v: decoded video after color conversion, 
+     *      c: video color specified by VADisplayAttribBlendColor
+     *      b: background color of the drawable
+     */
+    VADisplayAttribBlendColor          = 13,
 } VADisplayAttribType;
 
 /* flags for VADisplayAttribute */
diff --git a/va/va_android.h b/va/va_android.h
index 08844f4..7b98949 100644
--- a/va/va_android.h
+++ b/va/va_android.h
@@ -19,8 +19,8 @@ VADisplay vaGetDisplay (
 #endif
 
 #ifdef __cplusplus
-#ifdef ANDROID    
-#include <ui/ISurface.h>
+#ifdef ANDROID
+#include <surfaceflinger/ISurface.h>
 using namespace android;
 
 /*
diff --git a/va/va_trace.c b/va/va_trace.c
index 4ec9195..d289383 100644
--- a/va/va_trace.c
+++ b/va/va_trace.c
@@ -34,23 +34,87 @@
 #include <string.h>
 #include <dlfcn.h>
 #include <unistd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <time.h>
+
+
+/*
+ * Env. to debug some issue, e.g. the decode/encode issue in a video conference scenerio:
+ * .LIBVA_TRACE=log_file: general VA parameters saved into log_file
+ * .LIBVA_TRACE_BUFDATA: dump VA buffer data into log_file (if not set, just calculate a checksum)
+ * .LIBVA_TRACE_CODEDBUF=coded_clip_file: save the coded clip into file coded_clip_file
+ * .LIBVA_TRACE_SURFACE=decoded_yuv_file: save the decoded YUV file decoded_yuv_file
+ * .LIBVA_TRACE_LOGSIZE=numeric number: truncate the log_file or coded_clip_file, or decoded_yuv_file
+ *					when the size is bigger than the number
+ */
+
 
+/* global settings */
+
+/* LIBVA_TRACE */
 unsigned int trace_flag = 0;
 
-static const char *trace_file = 0;
-static FILE *trace_fp = 0;
+/* LIBVA_TRACE_LOGSIZE */
+static unsigned int trace_logsize = 0xffffffff; /* truncate the log when the size is bigger than it */
+
+/* LIBVA_TRACE_BUFDATA */
+static unsigned int trace_buffer_data; /* dump buffer data or not */
+
+#define TRACE_CONTEXT_MAX 4
+/* per context settings */
+static struct _trace_context {
+    VADisplay dpy; /* should use context as the key */
+    
+    /* LIBVA_TRACE */
+    FILE *trace_fp_log; /* save the log into a file */
+    char trace_log_fn[1024]; /* file name */
+    
+    /* LIBVA_TRACE_CODEDBUF */
+    FILE *trace_fp_codedbuf; /* save the encode result into a file */
+    char trace_codedbuf_fn[1024]; /* file name */
+    
+    /* LIBVA_TRACE_SURFACE */
+    FILE *trace_fp_surface; /* save the surface YUV into a file */
+    char trace_surface_fn[1024]; /* file name */
+
+    VAContextID  trace_context; /* current context */
+    
+    VASurfaceID  trace_rendertarget; /* current render target */
+    VAProfile trace_profile; /* current profile for buffers */
+    VAEntrypoint trace_entrypoint; /* current entrypoint */
+    VABufferID trace_codedbuf;
+    
+    unsigned int trace_frame_no; /* current frame NO */
+    unsigned int trace_slice_no; /* current slice NO */
+    unsigned int trace_slice_size; /* current slice buffer size */
+
+    unsigned int trace_frame_width; /* current frame width */
+    unsigned int trace_frame_height; /* current frame height */
+    unsigned int trace_sequence_start; /* get a new sequence for encoding or not */
+} trace_context[TRACE_CONTEXT_MAX] = { {0} }; /* trace five context at the same time */
+
+#define DPY2INDEX(dpy)                                  \
+    int idx;                                            \
+                                                        \
+    for (idx = 0; idx < TRACE_CONTEXT_MAX; idx++)       \
+        if (trace_context[idx].dpy == dpy)              \
+            break;                                      \
+                                                        \
+    if (idx == TRACE_CONTEXT_MAX)                       \
+        return;
+
+#define TRACE_FUNCNAME(idx)    va_TraceMsg(idx, "==========%s\n", __func__); 
 
-static VASurfaceID  trace_rendertarget; /* current render target */
-static VAProfile trace_profile; /* current entrypoint for buffers */
+/* Prototype declarations (functions defined in va.c) */
 
-static unsigned int trace_frame;
-static unsigned int trace_slice;
+void va_errorMessage(const char *msg, ...);
+void va_infoMessage(const char *msg, ...);
 
-static unsigned int trace_width;
-static unsigned int trace_height;
+int va_parseConfig(char *env, char *env_value);
 
-/* Prototypes (functions defined in va.c) */
-VAStatus vaBufferInfo (
+VAStatus vaBufferInfo(
     VADisplay dpy,
     VAContextID context,	/* in */
     VABufferID buf_id,		/* in */
@@ -76,45 +140,263 @@ VAStatus vaUnlockSurface(VADisplay dpy,
     VASurfaceID surface
 );
 
-void va_TraceInit(void)
+
+void va_TraceInit(VADisplay dpy)
 {
-    trace_file = (const char *)getenv("LIBVA_TRACE");
-    if (trace_file) {
-	trace_fp = fopen(trace_file, "w");
-        if (trace_fp)
-            trace_flag = 1;
+    char env_value[1024];
+    unsigned int suffix = 0xffff & ((unsigned int)time(NULL));
+    int trace_index = 0;
+    FILE *tmp;    
+    
+    for (trace_index = 0; trace_index < TRACE_CONTEXT_MAX; trace_index++)
+        if (trace_context[trace_index].dpy == 0)
+            break;
+
+    if (trace_index == TRACE_CONTEXT_MAX)
+        return;
+
+    if (va_parseConfig("LIBVA_TRACE", &env_value[0]) == 0) {
+        trace_flag = 1;
+        
+        sprintf(env_value+strlen(env_value), ".%d.%d", trace_index, suffix);
+
+        tmp = fopen(env_value, "w");
+	if (tmp) {
+            trace_context[trace_index].trace_fp_log = tmp;
+            strcpy(trace_context[trace_index].trace_log_fn, env_value);
+        } else {
+            trace_context[trace_index].trace_fp_log = stderr;
+            strcpy(trace_context[trace_index].trace_codedbuf_fn, "/dev/stderr");
+        }
+        va_infoMessage("LIBVA_TRACE is on, save log into %s\n", trace_context[trace_index].trace_log_fn);
+    }
+
+    if (trace_flag == 0)
+        return;
+
+    /* may re-get the global settings for multiple context */
+    if (va_parseConfig("LIBVA_TRACE_LOGSIZE", &env_value[0]) == 0) {
+        trace_logsize = atoi(env_value);
+        va_infoMessage("LIBVA_TRACE_LOGSIZE is on, size is %d\n", trace_logsize);
+    }
+    
+
+    if (va_parseConfig("LIBVA_TRACE_BUFDATA", NULL) == 0) {
+        trace_buffer_data = 1; /* dump buffer data */
+        va_infoMessage("LIBVA_TRACE_BUFDATA is on, dump buffer into log file\n");
+    }
+    
+
+    /* per-context setting */
+    if (va_parseConfig("LIBVA_TRACE_CODEDBUF", &env_value[0]) == 0) {
+        sprintf(env_value+strlen(env_value), ".%d.%d", trace_index, suffix);
+
+        tmp = fopen(env_value, "w");
+        
+        if (tmp) {
+            trace_context[trace_index].trace_fp_codedbuf = tmp;
+            strcpy(trace_context[trace_index].trace_codedbuf_fn, env_value);
+        } else {
+            trace_context[trace_index].trace_fp_codedbuf = stderr;
+            strcpy(trace_context[trace_index].trace_codedbuf_fn, "/dev/stderr");
+        }
+
+        va_infoMessage("LIBVA_TRACE_CODEDBUF is on, save coded clip into %s\n", trace_context[trace_index].trace_codedbuf_fn);
+    }
+
+    if (va_parseConfig("LIBVA_TRACE_SURFACE", &env_value[0]) == 0) {
+        sprintf(env_value+strlen(env_value), ".%d.%d", trace_index, suffix);
+
+        tmp = fopen(env_value, "w");
+        
+        if (tmp) {
+            trace_context[trace_index].trace_fp_surface = tmp;
+            strcpy(trace_context[trace_index].trace_surface_fn, env_value);
+        } else {
+            trace_context[trace_index].trace_fp_surface = stderr;
+            strcpy(trace_context[trace_index].trace_surface_fn, "/dev/stderr");
+        }
+
+        va_infoMessage("LIBVA_TRACE_SURFACE is on, save coded clip into %s\n", trace_context[trace_index].trace_surface_fn);
     }
+
+    trace_context[trace_index].dpy = dpy;
 }
 
-void va_TraceEnd(void)
+
+void va_TraceEnd(VADisplay dpy)
 {
-    if (trace_file && trace_fp) {
-        fclose(trace_fp);
+    DPY2INDEX(dpy);
+    
+    if (trace_context[idx].trace_fp_log && (trace_context[idx].trace_fp_log != stderr))
+        fclose(trace_context[idx].trace_fp_log);
+    
+    if (trace_context[idx].trace_fp_codedbuf && (trace_context[idx].trace_fp_codedbuf != stderr))
+        fclose(trace_context[idx].trace_fp_codedbuf);
+    
+    if (trace_context[idx].trace_fp_surface && (trace_context[idx].trace_fp_surface != stderr))
+        fclose(trace_context[idx].trace_fp_surface);
+
+    memset(&trace_context[idx], sizeof(struct _trace_context), 0);
+}
 
-        trace_file = NULL;
-        trace_fp = NULL;
+static unsigned int file_size(FILE *fp)
+{
+    struct stat buf;
 
-        trace_flag = 0;
+    fstat(fileno(fp), &buf);
 
-        trace_width = 0;
-        trace_height = 0;
-    }
+    return buf.st_size;
 }
 
-void va_TraceMsg(const char *msg, ...)
+
+static void truncate_file(FILE *fp)
+{
+    ftruncate(fileno(fp), 0);
+    rewind(fp);
+}
+
+void va_TraceMsg(int idx, const char *msg, ...)
 {
     va_list args;
+
+    if (file_size(trace_context[idx].trace_fp_log) >= trace_logsize)
+        truncate_file(trace_context[idx].trace_fp_log);
     
     if (msg)  {
         va_start(args, msg);
-        vfprintf(trace_fp, msg, args);
+        vfprintf(trace_context[idx].trace_fp_log, msg, args);
         va_end(args);
-    } else  {
-        fflush(trace_fp);
+    } else
+        fflush(trace_context[idx].trace_fp_log);
+}
+
+void va_TraceCodedBuf(VADisplay dpy)
+{
+    VACodedBufferSegment *buf_list = NULL;
+    VAStatus va_status;
+    unsigned char check_sum = 0;
+    DPY2INDEX(dpy);
+    
+    /* can only truncate at a sequence boudary */
+    if (((file_size(trace_context[idx].trace_fp_log) >= trace_logsize))
+        && trace_context[idx].trace_sequence_start) {
+        va_TraceMsg(idx, "==========truncate file %s\n", trace_context[idx].trace_codedbuf_fn);
+        truncate_file(trace_context[idx].trace_fp_log);
     }
+    
+
+    trace_context[idx].trace_sequence_start = 0; /* only truncate coded file when meet next new sequence */
+    
+    va_status = vaMapBuffer(dpy, trace_context[idx].trace_codedbuf, (void **)(&buf_list));
+    if (va_status != VA_STATUS_SUCCESS)
+        return;
+
+    va_TraceMsg(idx, "==========dump codedbuf into file %s\n", trace_context[idx].trace_codedbuf_fn);
+    
+    while (buf_list != NULL) {
+        unsigned int i;
+        
+        va_TraceMsg(idx, "\tsize = %d\n", buf_list->size);
+        if (trace_context[idx].trace_fp_log)
+            fwrite(buf_list->buf, buf_list->size, 1, trace_context[idx].trace_fp_codedbuf);
+
+        for (i=0; i<buf_list->size; i++)
+            check_sum ^= *((unsigned char *)buf_list->buf + i);
+
+        buf_list = buf_list->next;
+    }
+    vaUnmapBuffer(dpy,trace_context[idx].trace_codedbuf);
+    
+    va_TraceMsg(idx, "\tchecksum = 0x%02x\n", check_sum);
 }
 
 
+void va_TraceSurface(VADisplay dpy)
+{
+    unsigned int i, j;
+    unsigned int fourcc; /* following are output argument */
+    unsigned int luma_stride;
+    unsigned int chroma_u_stride;
+    unsigned int chroma_v_stride;
+    unsigned int luma_offset;
+    unsigned int chroma_u_offset;
+    unsigned int chroma_v_offset;
+    unsigned int buffer_name;
+    void *buffer = NULL;
+    unsigned char *Y_data, *UV_data, *tmp;
+    VAStatus va_status;
+    unsigned char check_sum = 0;
+    DPY2INDEX(dpy);
+    
+    va_TraceMsg(idx, "==========dump surface data in file %s\n", trace_context[idx].trace_surface_fn);
+
+    if ((file_size(trace_context[idx].trace_fp_surface) >= trace_logsize)) {
+        va_TraceMsg(idx, "==========truncate file %s\n", trace_context[idx].trace_surface_fn);
+        truncate_file(trace_context[idx].trace_fp_surface);
+    }
+
+    va_status = vaLockSurface(dpy, trace_context[idx].trace_rendertarget, &fourcc,
+                              &luma_stride, &chroma_u_stride, &chroma_v_stride,
+                              &luma_offset, &chroma_u_offset, &chroma_v_offset,
+                              &buffer_name, &buffer);
+
+    if (va_status != VA_STATUS_SUCCESS) {
+        va_TraceMsg(idx, "Error:vaLockSurface failed\n");
+        
+        return;
+    }
+
+    va_TraceMsg(idx, "\tfourcc = 0x%08x\n", fourcc);
+    va_TraceMsg(idx, "\twidth = %d\n", trace_context[idx].trace_frame_width);
+    va_TraceMsg(idx, "\theight = %d\n", trace_context[idx].trace_frame_height);
+    va_TraceMsg(idx, "\tluma_stride = %d\n", luma_stride);
+    va_TraceMsg(idx, "\tchroma_u_stride = %d\n", chroma_u_stride);
+    va_TraceMsg(idx, "\tchroma_v_stride = %d\n", chroma_v_stride);
+    va_TraceMsg(idx, "\tluma_offset = %d\n", luma_offset);
+    va_TraceMsg(idx, "\tchroma_u_offset = %d\n", chroma_u_offset);
+    va_TraceMsg(idx, "\tchroma_v_offset = %d\n", chroma_v_offset);
+
+    if (*(unsigned int *)buffer == 0) {
+        va_TraceMsg(idx, "Error:vaLockSurface return NULL buffer\n");
+        
+        vaUnlockSurface(dpy, trace_context[idx].trace_rendertarget);
+        return;
+    }
+    va_TraceMsg(idx, "\tbuffer location = 0x%08x\n", buffer);
+
+    Y_data = buffer;
+    UV_data = buffer + chroma_u_offset;
+
+    tmp = Y_data;
+    for (i=0; i<trace_context[idx].trace_frame_height; i++) {
+        for (j=0; j<trace_context[idx].trace_frame_width; j++)
+            check_sum ^= tmp[j];
+
+        if (trace_context[idx].trace_fp_surface)
+            fwrite(tmp, trace_context[idx].trace_frame_width, 1, trace_context[idx].trace_fp_surface);
+        
+        tmp = Y_data + i * luma_stride;
+    }
+
+    tmp = UV_data;
+    if (fourcc == VA_FOURCC_NV12) {
+        for (i=0; i<trace_context[idx].trace_frame_height/2; i++) {
+            for (j=0; j<trace_context[idx].trace_frame_width; j++)
+                check_sum ^= tmp[j];
+            
+            if (trace_context[idx].trace_fp_surface)
+                fwrite(tmp, trace_context[idx].trace_frame_width, 1, trace_context[idx].trace_fp_surface);
+            
+            tmp = UV_data + i * chroma_u_stride;
+        }
+    }
+
+    vaUnlockSurface(dpy, trace_context[idx].trace_rendertarget);
+
+    va_TraceMsg(idx, "\tchecksum = 0x%02x\n", check_sum & 0xff);
+}
+
 void va_TraceCreateConfig(
     VADisplay dpy,
     VAProfile profile, 
@@ -122,19 +404,23 @@ void va_TraceCreateConfig(
     VAConfigAttrib *attrib_list,
     int num_attribs,
     VAConfigID *config_id /* out */
-                         )
+)
 {
     int i;
+    DPY2INDEX(dpy);
+
+    TRACE_FUNCNAME(idx);
     
-    va_TraceMsg("\tprofile = %d\n", profile);
-    va_TraceMsg("\tentrypoint = %d\n", entrypoint);
-    va_TraceMsg("\tnum_attribs = %d\n", num_attribs);
+    va_TraceMsg(idx, "\tprofile = %d\n", profile);
+    va_TraceMsg(idx, "\tentrypoint = %d\n", entrypoint);
+    va_TraceMsg(idx, "\tnum_attribs = %d\n", num_attribs);
     for (i = 0; i < num_attribs; i++) {
-	va_TraceMsg("\t\tattrib_list[%d].type = 0x%08x\n", i, attrib_list[i].type);
-        va_TraceMsg("\t\tattrib_list[%d].value = 0x%08x\n", i, attrib_list[i].value);
+	va_TraceMsg(idx, "\t\tattrib_list[%d].type = 0x%08x\n", i, attrib_list[i].type);
+        va_TraceMsg(idx, "\t\tattrib_list[%d].value = 0x%08x\n", i, attrib_list[i].value);
     }
 
-    trace_profile = profile;
+    trace_context[idx].trace_profile = profile;
+    trace_context[idx].trace_entrypoint = entrypoint;
 }
 
 
@@ -145,17 +431,20 @@ void va_TraceCreateSurface(
     int format,
     int num_surfaces,
     VASurfaceID *surfaces	/* out */
-                          )
+)
 {
     int i;
+    DPY2INDEX(dpy);
+
+    TRACE_FUNCNAME(idx);
     
-    va_TraceMsg("\twidth = %d\n", width);
-    va_TraceMsg("\theight = %d\n", height);
-    va_TraceMsg("\tformat = %d\n", format);
-    va_TraceMsg("\tnum_surfaces = %d\n", num_surfaces);
+    va_TraceMsg(idx, "\twidth = %d\n", width);
+    va_TraceMsg(idx, "\theight = %d\n", height);
+    va_TraceMsg(idx, "\tformat = %d\n", format);
+    va_TraceMsg(idx, "\tnum_surfaces = %d\n", num_surfaces);
 
     for (i = 0; i < num_surfaces; i++)
-        va_TraceMsg("\t\tsurfaces[%d] = 0x%08x\n", i, surfaces[i]);
+        va_TraceMsg(idx, "\t\tsurfaces[%d] = 0x%08x\n", i, surfaces[i]);
 }
 
 
@@ -168,24 +457,29 @@ void va_TraceCreateContext(
     VASurfaceID *render_targets,
     int num_render_targets,
     VAContextID *context		/* out */
-                          )
+)
 {
     int i;
+    DPY2INDEX(dpy);
 
-    va_TraceMsg("\twidth = %d\n", picture_width);
-    va_TraceMsg("\theight = %d\n", picture_height);
-    va_TraceMsg("\tflag = 0x%08x\n", flag);
-    va_TraceMsg("\tnum_render_targets = %d\n", num_render_targets);
+    TRACE_FUNCNAME(idx);
+    
+    va_TraceMsg(idx, "\twidth = %d\n", picture_width);
+    va_TraceMsg(idx, "\theight = %d\n", picture_height);
+    va_TraceMsg(idx, "\tflag = 0x%08x\n", flag);
+    va_TraceMsg(idx, "\tnum_render_targets = %d\n", num_render_targets);
     for (i=0; i<num_render_targets; i++)
-        va_TraceMsg("\t\trender_targets[%d] = 0x%08x\n", i, render_targets[i]);
-    va_TraceMsg("\tcontext = 0x%08x\n", context);
+        va_TraceMsg(idx, "\t\trender_targets[%d] = 0x%08x\n", i, render_targets[i]);
+    va_TraceMsg(idx, "\tcontext = 0x%08x\n", *context);
 
 
-    trace_frame = 0;
-    trace_slice = 0;
+    trace_context[idx].trace_context = *context;
 
-    trace_width = picture_width;
-    trace_height = picture_height;
+    trace_context[idx].trace_frame_no = 0;
+    trace_context[idx].trace_slice_no = 0;
+
+    trace_context[idx].trace_frame_width = picture_width;
+    trace_context[idx].trace_frame_height = picture_height;
 }
 
 
@@ -207,12 +501,55 @@ static char * buffer_type_to_string(int type)
     case VAEncSequenceParameterBufferType: return "VAEncSequenceParameterBufferType";
     case VAEncPictureParameterBufferType: return "VAEncPictureParameterBufferType";
     case VAEncSliceParameterBufferType: return "VAEncSliceParameterBufferType";
+    case VAEncMiscParameterBufferType: return "VAEncMiscParameterBufferType";
     default: return "UnknowBuffer";
     }
 }
 
+void va_TraceMapBuffer (
+    VADisplay dpy,
+    VABufferID buf_id,	/* in */
+    void **pbuf 	/* out */
+)
+{
+    VABufferType type;
+    unsigned int size;
+    unsigned int num_elements;
+    
+    VACodedBufferSegment *buf_list;
+    int i = 0;
+    
+    DPY2INDEX(dpy);
+
+    vaBufferInfo(dpy, trace_context[idx].trace_context, buf_id, &type, &size, &num_elements);    
+    /*
+    va_TraceMsg(idx, "\tbuf_id=0x%x\n", buf_id);
+    va_TraceMsg(idx, "\tbuf_type=%s\n", buffer_type_to_string(type));
+    va_TraceMsg(idx, "\tbuf_size=%s\n", size);
+    va_TraceMsg(idx, "\tbuf_elements=%s\n", &num_elements);
+    */
+    
+    /* only trace CodedBuffer */
+    if (type != VAEncCodedBufferType)
+        return;
+    
+    buf_list = (VACodedBufferSegment *)(*pbuf);
+    while (buf_list != NULL) {
+        va_TraceMsg(idx, "\tCodedbuf[%d] =\n", i++);
+        
+        va_TraceMsg(idx, "\t   size = %d\n", buf_list->size);
+        va_TraceMsg(idx, "\t   bit_offset = %d\n", buf_list->bit_offset);
+        va_TraceMsg(idx, "\t   status = 0x%08x\n", buf_list->status);
+        va_TraceMsg(idx, "\t   reserved = 0x%08x\n", buf_list->reserved);
+        va_TraceMsg(idx, "\t   buf = 0x%08x\n", buf_list->buf);
+
+        buf_list = buf_list->next;
+    }
+    
+
+}
 
-static int va_TraceVABuffers(
+static void va_TraceVABuffers(
     VADisplay dpy,
     VAContextID context,
     VABufferID buffer,
@@ -220,21 +557,30 @@ static int va_TraceVABuffers(
     unsigned int size,
     unsigned int num_elements,
     void *pbuf
-                             )
+)
 {
-    int i;
+    unsigned int i;
     unsigned char *p = pbuf;
-    unsigned int *pi = (unsigned int *)pbuf;
+    unsigned char  check_sum = 0;
+    DPY2INDEX(dpy);
+    
+    va_TraceMsg(idx, "%s\n",  buffer_type_to_string(type));
 
-    va_TraceMsg("***Buffer Data***");
     for (i=0; i<size; i++) {
-        if ((i%16) == 0)
-            va_TraceMsg("\n0x%08x:", i);
-        va_TraceMsg(" %02x", p[i]);
+        unsigned char value =  p[i];
+            
+        if ((trace_buffer_data) && ((i%16) == 0))
+            va_TraceMsg(idx, "\n0x%08x:", i);
+
+        if (trace_buffer_data)
+            va_TraceMsg(idx, " %02x", value);
+
+        check_sum ^= value;
     }
 
-    va_TraceMsg("\n");
-    return 0;
+    va_TraceMsg(idx, "\tchecksum = 0x%02x\n", check_sum & 0xff);
+
+    return;
 }
 
 
@@ -247,6 +593,8 @@ static void va_TraceVAPictureParameterBufferMPEG2(
     unsigned int num_elements,
     void *data)
 {
+    DPY2INDEX(dpy);
+    
     va_TraceVABuffers(dpy, context, buffer, type, size, num_elements, data);
     
     return;
@@ -262,6 +610,8 @@ static void va_TraceVAIQMatrixBufferMPEG2(
     unsigned int num_elements,
     void *data)
 {
+    DPY2INDEX(dpy);
+    
     va_TraceVABuffers(dpy, context, buffer, type, size, num_elements, data);
     
     return;
@@ -277,6 +627,12 @@ static void va_TraceVASliceParameterBufferMPEG2(
     unsigned int num_elements,
     void *data)
 {
+    DPY2INDEX(dpy);
+
+    trace_context[idx].trace_slice_no++;
+    
+    /* todo: log TraceVASliceParameterBufferMPEG2 */
+    /* trace_context[idx].trace_slice_size = p->slice_data_size; */
     va_TraceVABuffers(dpy, context, buffer, type, size, num_elements, data);
     
     return;
@@ -293,6 +649,8 @@ static void va_TraceVAPictureParameterBufferMPEG4(
     unsigned int num_elements,
     void *data)
 {
+    DPY2INDEX(dpy);
+    
     va_TraceVABuffers(dpy, context, buffer, type, size, num_elements, data);
     
     return;
@@ -308,6 +666,9 @@ static void va_TraceVAIQMatrixBufferMPEG4(
     unsigned int num_elements,
     void *data)
 {
+    DPY2INDEX(dpy);
+
+    /* todo: log VAIQMatrixBufferMPEG4 */
     va_TraceVABuffers(dpy, context, buffer, type, size, num_elements, data);
     
     return;
@@ -323,6 +684,12 @@ static void va_TraceVASliceParameterBufferMPEG4(
     unsigned int num_elements,
     void *data)
 {
+    DPY2INDEX(dpy);
+
+    trace_context[idx].trace_slice_no++;
+
+    /* todo: log VASliceParameterBufferMPEG4 */
+    /* trace_context[idx].trace_slice_size = p->slice_data_size; */
     va_TraceVABuffers(dpy, context, buffer, type, size, num_elements, data);
     
     return;
@@ -339,76 +706,59 @@ static void va_TraceVAPictureParameterBufferH264(
     void *data)
 {
     int i;
-
+    DPY2INDEX(dpy);
+    
     VAPictureParameterBufferH264 *p = (VAPictureParameterBufferH264*)data;
 
-    va_TraceMsg  ("==========H264PicParameterBuffer============\n");
-
-#if 0    
-    if (p->num_ref_frames > 4)
-    {
-        int num = 0;
-        for (i = 15; i >= 0; i--)
-        {
-            if (p->ReferenceFrames[i].flags != VA_PICTURE_H264_INVALID)
-            {
-                num++;
-            }
-            if (num > 4)
-            {
-                p->ReferenceFrames[i].flags = VA_PICTURE_H264_INVALID;
-            }
-        }  	
-        p->num_ref_frames  = 4;
-    }
-#endif
-    
-#if 1
-    va_TraceMsg("picture id: %d\n", p->CurrPic.picture_id);
-    va_TraceMsg("frame idx: %d\n", p->CurrPic.frame_idx);
-    va_TraceMsg("picture flags: %d\n", p->CurrPic.flags);
-    va_TraceMsg("top field order count: %d\n", p->CurrPic.TopFieldOrderCnt);
-    va_TraceMsg("bottom field order count: %d\n", p->CurrPic.BottomFieldOrderCnt);
+    va_TraceMsg(idx, "VAPictureParameterBufferH264\n");
 
+    va_TraceMsg(idx, "\tCurrPic.picture_id = %d\n", p->CurrPic.picture_id);
+    va_TraceMsg(idx, "\tCurrPic.frame_idx = %d\n", p->CurrPic.frame_idx);
+    va_TraceMsg(idx, "\tCurrPic.flags = %d\n", p->CurrPic.flags);
+    va_TraceMsg(idx, "\tCurrPic.TopFieldOrderCnt = %d\n", p->CurrPic.TopFieldOrderCnt);
+    va_TraceMsg(idx, "\tCurrPic.BottomFieldOrderCnt = %d\n", p->CurrPic.BottomFieldOrderCnt);
 
-    va_TraceMsg("Reference frames: \n");
+    va_TraceMsg(idx, "\tReferenceFrames (TopFieldOrderCnt-BottomFieldOrderCnt-picture_id-frame_idx:\n");
     for (i = 0; i < 16; i++)
     {
-        if (p->ReferenceFrames[i].flags != VA_PICTURE_H264_INVALID)
-        {
-            //va_TraceMsg("%d-%d; ", p->ReferenceFrames[i].TopFieldOrderCnt, p->ReferenceFrames[i].BottomFieldOrderCnt);
-            va_TraceMsg("%d-%d-%d-%d; ", p->ReferenceFrames[i].TopFieldOrderCnt, p->ReferenceFrames[i].BottomFieldOrderCnt, p->ReferenceFrames[i].picture_id, p->ReferenceFrames[i].frame_idx);
-        }
+        if (p->ReferenceFrames[i].flags != VA_PICTURE_H264_INVALID) {
+            va_TraceMsg(idx, "\t\t%d-%d-%d-%d\n",
+                        p->ReferenceFrames[i].TopFieldOrderCnt,
+                        p->ReferenceFrames[i].BottomFieldOrderCnt,
+                        p->ReferenceFrames[i].picture_id,
+                        p->ReferenceFrames[i].frame_idx);
+        } else
+            va_TraceMsg(idx, "\t\t%inv-%inv-%inv-%inv\n");
     }
-    va_TraceMsg("\n");
-#endif
-    va_TraceMsg("picture_width_in_mbs_minus1: %d\n", p->picture_width_in_mbs_minus1);
-    va_TraceMsg("picture_height_in_mbs_minus1: %d\n", p->picture_height_in_mbs_minus1);
-    va_TraceMsg("bit_depth_luma_minus8: %d\n", p->bit_depth_luma_minus8);
-    va_TraceMsg("bit_depth_chroma_minus8: %d\n", p->bit_depth_chroma_minus8);
-    va_TraceMsg("num_ref_frames: %d\n", p->num_ref_frames);
-    va_TraceMsg("seq fields: %d\n", p->seq_fields.value);
-    va_TraceMsg("\t chroma_format_idc: %d\n", p->seq_fields.bits.chroma_format_idc);
-    va_TraceMsg("\t residual_colour_transform_flag: %d\n", p->seq_fields.bits.residual_colour_transform_flag);
-    va_TraceMsg("\t frame_mbs_only_flag: %d\n", p->seq_fields.bits.frame_mbs_only_flag);
-    va_TraceMsg("\t mb_adaptive_frame_field_flag: %d\n", p->seq_fields.bits.mb_adaptive_frame_field_flag);
-    va_TraceMsg("\t direct_8x8_inference_flag: %d\n", p->seq_fields.bits.direct_8x8_inference_flag);
-    va_TraceMsg("\t MinLumaBiPredSize8x8: %d\n", p->seq_fields.bits.MinLumaBiPredSize8x8);
-    va_TraceMsg("num_slice_groups_minus1: %d\n", p->num_slice_groups_minus1);
-    va_TraceMsg("slice_group_map_type: %d\n", p->slice_group_map_type);
-    va_TraceMsg("slice_group_change_rate_minus1: %d\n", p->slice_group_change_rate_minus1);
-    va_TraceMsg("pic_init_qp_minus26: %d\n", p->pic_init_qp_minus26);
-    va_TraceMsg("pic_init_qs_minus26: %d\n", p->pic_init_qs_minus26);
-    va_TraceMsg("chroma_qp_index_offset: %d\n", p->chroma_qp_index_offset);
-    va_TraceMsg("second_chroma_qp_index_offset: %d\n", p->second_chroma_qp_index_offset);
-    va_TraceMsg("pic_fields: %d\n", p->pic_fields.value);
-    va_TraceMsg("\t entropy_coding_mode_flag: %d\n", p->pic_fields.bits.entropy_coding_mode_flag);
-    va_TraceMsg("\t weighted_pred_flag: %d\n", p->pic_fields.bits.weighted_pred_flag);
-    va_TraceMsg("\t weighted_bipred_idc: %d\n", p->pic_fields.bits.weighted_bipred_idc);
-    va_TraceMsg("\t transform_8x8_mode_flag: %d\n", p->pic_fields.bits.transform_8x8_mode_flag);
-    va_TraceMsg("\t field_pic_flag: %d\n", p->pic_fields.bits.field_pic_flag);
-    va_TraceMsg("\t constrained_intra_pred_flag: %d\n", p->pic_fields.bits.constrained_intra_pred_flag);
-    va_TraceMsg("frame_num: %d\n", p->frame_num);
+    va_TraceMsg(idx, "\n");
+    
+    va_TraceMsg(idx, "\tpicture_width_in_mbs_minus1 = %d\n", p->picture_width_in_mbs_minus1);
+    va_TraceMsg(idx, "\tpicture_height_in_mbs_minus1 = %d\n", p->picture_height_in_mbs_minus1);
+    va_TraceMsg(idx, "\tbit_depth_luma_minus8 = %d\n", p->bit_depth_luma_minus8);
+    va_TraceMsg(idx, "\tbit_depth_chroma_minus8 = %d\n", p->bit_depth_chroma_minus8);
+    va_TraceMsg(idx, "\tnum_ref_frames = %d\n", p->num_ref_frames);
+    va_TraceMsg(idx, "\tseq fields = %d\n", p->seq_fields.value);
+    va_TraceMsg(idx, "\tchroma_format_idc = %d\n", p->seq_fields.bits.chroma_format_idc);
+    va_TraceMsg(idx, "\tresidual_colour_transform_flag = %d\n", p->seq_fields.bits.residual_colour_transform_flag);
+    va_TraceMsg(idx, "\tframe_mbs_only_flag = %d\n", p->seq_fields.bits.frame_mbs_only_flag);
+    va_TraceMsg(idx, "\tmb_adaptive_frame_field_flag = %d\n", p->seq_fields.bits.mb_adaptive_frame_field_flag);
+    va_TraceMsg(idx, "\tdirect_8x8_inference_flag = %d\n", p->seq_fields.bits.direct_8x8_inference_flag);
+    va_TraceMsg(idx, "\tMinLumaBiPredSize8x8 = %d\n", p->seq_fields.bits.MinLumaBiPredSize8x8);
+    va_TraceMsg(idx, "\tnum_slice_groups_minus1 = %d\n", p->num_slice_groups_minus1);
+    va_TraceMsg(idx, "\tslice_group_map_type = %d\n", p->slice_group_map_type);
+    va_TraceMsg(idx, "\tslice_group_change_rate_minus1 = %d\n", p->slice_group_change_rate_minus1);
+    va_TraceMsg(idx, "\tpic_init_qp_minus26 = %d\n", p->pic_init_qp_minus26);
+    va_TraceMsg(idx, "\tpic_init_qs_minus26 = %d\n", p->pic_init_qs_minus26);
+    va_TraceMsg(idx, "\tchroma_qp_index_offset = %d\n", p->chroma_qp_index_offset);
+    va_TraceMsg(idx, "\tsecond_chroma_qp_index_offset = %d\n", p->second_chroma_qp_index_offset);
+    va_TraceMsg(idx, "\tpic_fields = %d\n", p->pic_fields.value);
+    va_TraceMsg(idx, "\tentropy_coding_mode_flag = %d\n", p->pic_fields.bits.entropy_coding_mode_flag);
+    va_TraceMsg(idx, "\tweighted_pred_flag = %d\n", p->pic_fields.bits.weighted_pred_flag);
+    va_TraceMsg(idx, "\tweighted_bipred_idc = %d\n", p->pic_fields.bits.weighted_bipred_idc);
+    va_TraceMsg(idx, "\ttransform_8x8_mode_flag = %d\n", p->pic_fields.bits.transform_8x8_mode_flag);
+    va_TraceMsg(idx, "\tfield_pic_flag = %d\n", p->pic_fields.bits.field_pic_flag);
+    va_TraceMsg(idx, "\tconstrained_intra_pred_flag = %d\n", p->pic_fields.bits.constrained_intra_pred_flag);
+    va_TraceMsg(idx, "\tframe_num = %d\n", p->frame_num);
 
     return;
 }
@@ -424,93 +774,78 @@ static void va_TraceVASliceParameterBufferH264(
 {
     int i;
     VASliceParameterBufferH264* p = (VASliceParameterBufferH264*)data;
-
-    va_TraceMsg  ("========== SLICE HEADER ============.\n");
-    va_TraceMsg("slice_data_size: %d\n", p->slice_data_size);
-    va_TraceMsg("slice_data_offset: %d\n", p->slice_data_offset);
-    va_TraceMsg("slice_data_flag: %d\n", p->slice_data_flag);
-    va_TraceMsg("slice_data_bit_offset: %d\n", p->slice_data_bit_offset);
-    va_TraceMsg("first_mb_in_slice: %d\n", p->first_mb_in_slice);
-    va_TraceMsg("slice_type: %d\n", p->slice_type);
-    va_TraceMsg("direct_spatial_mv_pred_flag: %d\n", p->direct_spatial_mv_pred_flag);
-    va_TraceMsg("num_ref_idx_l0_active_minus1: %d\n", p->num_ref_idx_l0_active_minus1);
-    va_TraceMsg("num_ref_idx_l1_active_minus1: %d\n", p->num_ref_idx_l1_active_minus1);
-    va_TraceMsg("cabac_init_idc: %d\n", p->cabac_init_idc);
-    va_TraceMsg("slice_qp_delta: %d\n", p->slice_qp_delta);
-    va_TraceMsg("disable_deblocking_filter_idc: %d\n", p->disable_deblocking_filter_idc);
-    va_TraceMsg("slice_alpha_c0_offset_div2: %d\n", p->slice_alpha_c0_offset_div2);
-    va_TraceMsg("slice_beta_offset_div2: %d\n", p->slice_beta_offset_div2);	
-
-#if 1
-    if (p->slice_type == 0 || p->slice_type == 1)
-    {
-        va_TraceMsg("RefPicList0:\n");
-        for (i = 0; i < p->num_ref_idx_l0_active_minus1 + 1; i++)
-        {
-            //va_TraceMsg("%d-%d; ", p->RefPicList0[i].TopFieldOrderCnt, p->RefPicList0[i].BottomFieldOrderCnt);
-            va_TraceMsg("%d-%d-%d-%d; ", p->RefPicList0[i].TopFieldOrderCnt, p->RefPicList0[i].BottomFieldOrderCnt, p->RefPicList0[i].picture_id, p->RefPicList0[i].frame_idx);
+    DPY2INDEX(dpy);
+
+    trace_context[idx].trace_slice_no++;
+    trace_context[idx].trace_slice_size = p->slice_data_size;
+
+    va_TraceMsg(idx, "VASliceParameterBufferH264\n");
+    va_TraceMsg(idx, "\tslice_data_size = %d\n", p->slice_data_size);
+    va_TraceMsg(idx, "\tslice_data_offset = %d\n", p->slice_data_offset);
+    va_TraceMsg(idx, "\tslice_data_flag = %d\n", p->slice_data_flag);
+    va_TraceMsg(idx, "\tslice_data_bit_offset = %d\n", p->slice_data_bit_offset);
+    va_TraceMsg(idx, "\tfirst_mb_in_slice = %d\n", p->first_mb_in_slice);
+    va_TraceMsg(idx, "\tslice_type = %d\n", p->slice_type);
+    va_TraceMsg(idx, "\tdirect_spatial_mv_pred_flag = %d\n", p->direct_spatial_mv_pred_flag);
+    va_TraceMsg(idx, "\tnum_ref_idx_l0_active_minus1 = %d\n", p->num_ref_idx_l0_active_minus1);
+    va_TraceMsg(idx, "\tnum_ref_idx_l1_active_minus1 = %d\n", p->num_ref_idx_l1_active_minus1);
+    va_TraceMsg(idx, "\tcabac_init_idc = %d\n", p->cabac_init_idc);
+    va_TraceMsg(idx, "\tslice_qp_delta = %d\n", p->slice_qp_delta);
+    va_TraceMsg(idx, "\tdisable_deblocking_filter_idc = %d\n", p->disable_deblocking_filter_idc);
+    va_TraceMsg(idx, "\tslice_alpha_c0_offset_div2 = %d\n", p->slice_alpha_c0_offset_div2);
+    va_TraceMsg(idx, "\tslice_beta_offset_div2 = %d\n", p->slice_beta_offset_div2);	
+
+    if (p->slice_type == 0 || p->slice_type == 1) {
+        va_TraceMsg(idx, "\tRefPicList0 =");
+        for (i = 0; i < p->num_ref_idx_l0_active_minus1 + 1; i++) {
+            va_TraceMsg(idx, "%d-%d-%d-%d\n", p->RefPicList0[i].TopFieldOrderCnt, p->RefPicList0[i].BottomFieldOrderCnt, p->RefPicList0[i].picture_id, p->RefPicList0[i].frame_idx);
         }
-        va_TraceMsg("\n");
-        if (p->slice_type == 1)
-        {
-            va_TraceMsg("RefPicList1:\n");
+        if (p->slice_type == 1) {
+            va_TraceMsg(idx, "\tRefPicList1 =");
             for (i = 0; i < p->num_ref_idx_l1_active_minus1 + 1; i++)
             {
-                //va_TraceMsg("%d-%d; ", p->RefPicList1[i].TopFieldOrderCnt, p->RefPicList1[i].BottomFieldOrderCnt);
-                va_TraceMsg("%d-%d-%d-%d; ", p->RefPicList1[i].TopFieldOrderCnt, p->RefPicList1[i].BottomFieldOrderCnt, p->RefPicList1[i].picture_id, p->RefPicList1[i].frame_idx);
+                va_TraceMsg(idx, "%d-%d-%d-%d\n", p->RefPicList1[i].TopFieldOrderCnt, p->RefPicList1[i].BottomFieldOrderCnt, p->RefPicList1[i].picture_id, p->RefPicList1[i].frame_idx);
             }
         }
-        va_TraceMsg("\n");
     }
-#endif
-
-    va_TraceMsg("luma_log2_weight_denom: %d\n", p->luma_log2_weight_denom);
-    va_TraceMsg("chroma_log2_weight_denom: %d\n", p->chroma_log2_weight_denom);
-    va_TraceMsg("luma_weight_l0_flag: %d\n", p->luma_weight_l0_flag);
-    if (p->luma_weight_l0_flag)
-    {
-        for (i = 0; i <=  p->num_ref_idx_l0_active_minus1; i++)
-        {
-            va_TraceMsg("%d ", p->luma_weight_l0[i]);
-            va_TraceMsg("%d ", p->luma_offset_l0[i]);
+    
+    va_TraceMsg(idx, "\tluma_log2_weight_denom = %d\n", p->luma_log2_weight_denom);
+    va_TraceMsg(idx, "\tchroma_log2_weight_denom = %d\n", p->chroma_log2_weight_denom);
+    va_TraceMsg(idx, "\tluma_weight_l0_flag = %d\n", p->luma_weight_l0_flag);
+    if (p->luma_weight_l0_flag) {
+        for (i = 0; i <=  p->num_ref_idx_l0_active_minus1; i++) {
+            va_TraceMsg(idx, "\t%d ", p->luma_weight_l0[i]);
+            va_TraceMsg(idx, "\t%d ", p->luma_offset_l0[i]);
         }
-        va_TraceMsg("\n");
     }
-	
 		
-    va_TraceMsg("chroma_weight_l0_flag: %d\n", p->chroma_weight_l0_flag);
-    if (p->chroma_weight_l0_flag)
-    {
-        for (i = 0; i <= p->num_ref_idx_l0_active_minus1; i++)
-        {
-            va_TraceMsg("%d ", p->chroma_weight_l0[i][0]);
-            va_TraceMsg("%d ", p->chroma_offset_l0[i][0]);
-            va_TraceMsg("%d ", p->chroma_weight_l0[i][1]);
-            va_TraceMsg("%d ", p->chroma_offset_l0[i][1]);
+    va_TraceMsg(idx, "\tchroma_weight_l0_flag = %d\n", p->chroma_weight_l0_flag);
+    if (p->chroma_weight_l0_flag) {
+        for (i = 0; i <= p->num_ref_idx_l0_active_minus1; i++) {
+            va_TraceMsg(idx, "\t\t%d ", p->chroma_weight_l0[i][0]);
+            va_TraceMsg(idx, "\t\t%d ", p->chroma_offset_l0[i][0]);
+            va_TraceMsg(idx, "\t\t%d ", p->chroma_weight_l0[i][1]);
+            va_TraceMsg(idx, "\t\t%d ", p->chroma_offset_l0[i][1]);
         }
-        va_TraceMsg("\n");			
     }
-    va_TraceMsg("luma_weight_l1_flag: %d\n", p->luma_weight_l1_flag);
-    if (p->luma_weight_l1_flag)
-    {
-        for (i = 0; i <=  p->num_ref_idx_l1_active_minus1; i++)
-        {
-            va_TraceMsg("%d ", p->luma_weight_l1[i]);
-            va_TraceMsg("%d ", p->luma_offset_l1[i]);
+    
+    va_TraceMsg(idx, "\tluma_weight_l1_flag = %d\n", p->luma_weight_l1_flag);
+    if (p->luma_weight_l1_flag) {
+        for (i = 0; i <=  p->num_ref_idx_l1_active_minus1; i++) {
+            va_TraceMsg(idx, "\t\t%d ", p->luma_weight_l1[i]);
+            va_TraceMsg(idx, "\t\t%d ", p->luma_offset_l1[i]);
         }
-        va_TraceMsg("\n");
     }
-    va_TraceMsg("chroma_weight_l1_flag: %d\n", p->chroma_weight_l1_flag);
-    if (p->chroma_weight_l1_flag)
-    {
-        for (i = 0; i <= p->num_ref_idx_l1_active_minus1; i++)
-        {
-            va_TraceMsg("%d ", p->chroma_weight_l1[i][0]);
-            va_TraceMsg("%d ", p->chroma_offset_l1[i][0]);
-            va_TraceMsg("%d ", p->chroma_weight_l1[i][1]);
-            va_TraceMsg("%d ", p->chroma_offset_l1[i][1]);
+    
+    va_TraceMsg(idx, "\tchroma_weight_l1_flag = %d\n", p->chroma_weight_l1_flag);
+    if (p->chroma_weight_l1_flag) {
+        for (i = 0; i <= p->num_ref_idx_l1_active_minus1; i++) {
+            va_TraceMsg(idx, "\t\t%d ", p->chroma_weight_l1[i][0]);
+            va_TraceMsg(idx, "\t\t%d ", p->chroma_offset_l1[i][0]);
+            va_TraceMsg(idx, "\t\t%d ", p->chroma_weight_l1[i][1]);
+            va_TraceMsg(idx, "\t\t%d ", p->chroma_offset_l1[i][1]);
         }
-        va_TraceMsg("\n");			
+        va_TraceMsg(idx, "\n");			
     }	
 }
 
@@ -524,30 +859,171 @@ static void va_TraceVAIQMatrixBufferH264(
     void *data
 )
 {
-    va_TraceMsg("========== IQMatrix ============.\n");
     VAIQMatrixBufferH264* p = (VAIQMatrixBufferH264* )data;
     int i, j;
-    for (i = 0; i < 6; i++)
-    {
-        for (j = 0; j < 16; j++)
-        {
-            va_TraceMsg("%d\t", p->ScalingList4x4[i][j]);
+    DPY2INDEX(dpy);
+
+    va_TraceMsg(idx, "VAIQMatrixBufferH264\n");
+
+    va_TraceMsg(idx, "\tScalingList4x4[6][16]=\n");
+    for (i = 0; i < 6; i++) {
+        for (j = 0; j < 16; j++) {
+            va_TraceMsg(idx, "\t%d\t", p->ScalingList4x4[i][j]);
             if ((j + 1) % 8 == 0)
-                va_TraceMsg("\n");
+                va_TraceMsg(idx, "\n");
         }
     }
 
-    for (i = 0; i < 2; i++)
-    {
-        for (j = 0; j < 64; j++)
-        {
-            va_TraceMsg("%d\t", p->ScalingList8x8[i][j]);
+    va_TraceMsg(idx, "\tScalingList8x8[2][64]=\n");
+    for (i = 0; i < 2; i++) {
+        for (j = 0; j < 64; j++) {
+            va_TraceMsg(idx, "\t%d", p->ScalingList8x8[i][j]);
             if ((j + 1) % 8 == 0)
-                va_TraceMsg("\n");
+                va_TraceMsg(idx, "\n");
         }		
     }
 }
 
+static void va_TraceVAEncSequenceParameterBufferH264(
+    VADisplay dpy,
+    VAContextID context,
+    VABufferID buffer,
+    VABufferType type,
+    unsigned int size,
+    unsigned int num_elements,
+    void *data)
+{
+    VAEncSequenceParameterBufferH264 *p = (VAEncSequenceParameterBufferH264 *)data;
+    DPY2INDEX(dpy);
+    
+    va_TraceMsg(idx, "VAEncSequenceParameterBufferH264\n");
+    
+    va_TraceMsg(idx, "\tseq_parameter_set_id = %d\n", p->seq_parameter_set_id);
+    va_TraceMsg(idx, "\tlevel_idc = %d\n", p->level_idc);
+    va_TraceMsg(idx, "\tintra_period = %d\n", p->intra_period);
+    va_TraceMsg(idx, "\tintra_idr_period = %d\n", p->intra_idr_period);
+    va_TraceMsg(idx, "\tpicture_width_in_mbs = %d\n", p->picture_width_in_mbs);
+    va_TraceMsg(idx, "\tpicture_height_in_mbs = %d\n", p->picture_height_in_mbs);
+    va_TraceMsg(idx, "\tbits_per_second = %d\n", p->bits_per_second);
+    va_TraceMsg(idx, "\tframe_rate = %d\n", p->frame_rate);
+    va_TraceMsg(idx, "\tinitial_qp = %d\n", p->initial_qp);
+    va_TraceMsg(idx, "\tmin_qp = %d\n", p->min_qp);
+    va_TraceMsg(idx, "\tbasic_unit_size = %d\n", p->basic_unit_size);
+    va_TraceMsg(idx, "\tvui_flag = %d\n", p->vui_flag);
+
+    /* start a new sequce, coded log file can be truncated */
+    trace_context[idx].trace_sequence_start = 1;
+    
+    return;
+}
+
+static void va_TraceVAEncPictureParameterBufferH264(
+    VADisplay dpy,
+    VAContextID context,
+    VABufferID buffer,
+    VABufferType type,
+    unsigned int size,
+    unsigned int num_elements,
+    void *data)
+{
+    VAEncPictureParameterBufferH264 *p = (VAEncPictureParameterBufferH264 *)data;
+    DPY2INDEX(dpy);
+    
+    va_TraceMsg(idx, "VAEncSequenceParameterBufferH264\n");
+    va_TraceMsg(idx, "\treference_picture = 0x%08x\n", p->reference_picture);
+    va_TraceMsg(idx, "\treconstructed_picture = 0x%08x\n", p->reconstructed_picture);
+    va_TraceMsg(idx, "\tcoded_buf = %08x\n", p->coded_buf);
+    va_TraceMsg(idx, "\tpicture_width = %d\n", p->picture_width);
+    va_TraceMsg(idx, "\tpicture_height = %d\n", p->picture_height);
+    va_TraceMsg(idx, "\tlast_picture = 0x%08x\n", p->last_picture);
+
+    trace_context[idx].trace_codedbuf =  p->coded_buf;
+    
+    return;
+}
+
+
+static void va_TraceVAEncSliceParameterBuffer(
+    VADisplay dpy,
+    VAContextID context,
+    VABufferID buffer,
+    VABufferType type,
+    unsigned int size,
+    unsigned int num_elements,
+    void *data)
+{
+    VAEncSliceParameterBuffer* p = (VAEncSliceParameterBuffer*)data;
+    DPY2INDEX(dpy);
+    
+    va_TraceMsg(idx, "VAEncSliceParameterBuffer\n");
+    
+    va_TraceMsg(idx, "\tstart_row_number = %d\n", p->start_row_number);
+    va_TraceMsg(idx, "\tslice_height = %d\n", p->slice_height);
+    va_TraceMsg(idx, "\tslice_flags.is_intra = %d\n", p->slice_flags.bits.is_intra);
+    va_TraceMsg(idx, "\tslice_flags.disable_deblocking_filter_idc = %d\n", p->slice_flags.bits.disable_deblocking_filter_idc);
+    
+    return;
+}
+
+static void va_TraceVAEncMiscParameterBuffer(
+    VADisplay dpy,
+    VAContextID context,
+    VABufferID buffer,
+    VABufferType type,
+    unsigned int size,
+    unsigned int num_elements,
+    void *data)
+{
+    VAEncMiscParameterBuffer* tmp = (VAEncMiscParameterBuffer*)data;
+    DPY2INDEX(dpy);
+    
+    switch (tmp->type) {
+    case VAEncMiscParameterTypeFrameRate:
+    {
+        VAEncMiscParameterFrameRate *p = (VAEncMiscParameterFrameRate *)tmp->data;
+        va_TraceMsg(idx, "VAEncMiscParameterFrameRate\n");
+        va_TraceMsg(idx, "\tframerate = %d\n", p->framerate);
+        
+        break;
+    }
+    case VAEncMiscParameterTypeRateControl:
+    {
+        VAEncMiscParameterRateControl *p = (VAEncMiscParameterRateControl *)tmp->data;
+
+        va_TraceMsg(idx, "VAEncMiscParameterRateControl\n");
+        va_TraceMsg(idx, "\tbits_per_second = %d\n", p->bits_per_second);
+        va_TraceMsg(idx, "\twindow_size = %d\n", p->window_size);
+        va_TraceMsg(idx, "\tinitial_qp = %d\n", p->initial_qp);
+        va_TraceMsg(idx, "\tmin_qp = %d\n", p->min_qp);
+        break;
+    }
+    case VAEncMiscParameterTypeMaxSliceSize:
+    {
+        VAEncMiscParameterMaxSliceSize *p = (VAEncMiscParameterMaxSliceSize *)tmp->data;
+        
+        va_TraceMsg(idx, "VAEncMiscParameterTypeMaxSliceSize\n");
+        va_TraceMsg(idx, "\tmax_slice_size = %d\n", p->max_slice_size);
+        break;
+    }
+    case VAEncMiscParameterTypeAIR:
+    {
+        VAEncMiscParameterAIR *p = (VAEncMiscParameterAIR *)tmp->data;
+        
+        va_TraceMsg(idx, "VAEncMiscParameterAIR\n");
+        va_TraceMsg(idx, "\tair_num_mbs = %d\n", p->air_num_mbs);
+        va_TraceMsg(idx, "\tair_threshold = %d\n", p->air_threshold);
+        va_TraceMsg(idx, "\tair_auto = %d\n", p->air_auto);
+        break;
+    }
+    default:
+        va_TraceMsg(idx, "invalid VAEncMiscParameterBuffer type = %d\n", tmp->type);
+        break;
+    }
+    
+    return;
+}
+
+
 static void va_TraceVAPictureParameterBufferVC1(
     VADisplay dpy,
     VAContextID context,
@@ -559,174 +1035,96 @@ static void va_TraceVAPictureParameterBufferVC1(
 )
 {
     VAPictureParameterBufferVC1* p = (VAPictureParameterBufferVC1*)data;
-
-    va_TraceMsg("\tforward_reference_picture = 0x%08x\n", p->forward_reference_picture);
-    va_TraceMsg("\tbackward_reference_picture = 0x%08x\n", p->backward_reference_picture);
-    va_TraceMsg("\tinloop_decoded_picture = 0x%08x\n", p->inloop_decoded_picture);
-    
-    va_TraceMsg("\tpulldown = %d\n", p->sequence_fields.bits.pulldown);
-    va_TraceMsg("\tinterlace = %d\n", p->sequence_fields.bits.interlace);
-    va_TraceMsg("\ttfcntrflag = %d\n", p->sequence_fields.bits.tfcntrflag);
-    va_TraceMsg("\tfinterpflag = %d\n", p->sequence_fields.bits.finterpflag);
-    va_TraceMsg("\tpsf                           = %d.\n",
-                p->sequence_fields.bits.psf);
-    va_TraceMsg("\tmultires                      = %d.\n",
-                p->sequence_fields.bits.multires);
-    va_TraceMsg("\toverlap                       = %d.\n",
-                p->sequence_fields.bits.overlap);
-    va_TraceMsg("\tsyncmarker                    = %d.\n",
-                p->sequence_fields.bits.syncmarker);
-    va_TraceMsg("\trangered                      = %d.\n",
-                p->sequence_fields.bits.rangered);
-    va_TraceMsg("\tmax_b_frames                  = %d.\n",
-                p->sequence_fields.bits.max_b_frames);
-    va_TraceMsg("\tcoded_width                   = %d.\n",
-                p->coded_width);
-    va_TraceMsg("\tcoded_height                  = %d.\n",
-                p->coded_height);
-    va_TraceMsg("\tclosed_entry                  = %d.\n",
-                p->entrypoint_fields.bits.closed_entry);
-    va_TraceMsg("\tbroken_link                   = %d.\n",
-                p->entrypoint_fields.bits.broken_link);
-    va_TraceMsg("\tclosed_entry                  = %d.\n",
-                p->entrypoint_fields.bits.closed_entry);
-    va_TraceMsg("\tpanscan_flag                  = %d.\n",
-                p->entrypoint_fields.bits.panscan_flag);
-    va_TraceMsg("\tloopfilter                    = %d.\n",
-                p->entrypoint_fields.bits.loopfilter);
-    va_TraceMsg("\tconditional_overlap_flag      = %d.\n",
-                p->conditional_overlap_flag);
-    va_TraceMsg("\tfast_uvmc_flag                = %d.\n",
-                p->fast_uvmc_flag);
-    va_TraceMsg("\trange_mapping_luma_flag       = %d.\n",
-                p->range_mapping_fields.bits.luma_flag);
-    va_TraceMsg("\trange_mapping_luma            = %d.\n",
-                p->range_mapping_fields.bits.luma);
-    va_TraceMsg("\trange_mapping_chroma_flag     = %d.\n",
-                p->range_mapping_fields.bits.chroma_flag);
-    va_TraceMsg("\trange_mapping_chroma          = %d.\n",
-                p->range_mapping_fields.bits.chroma);
-    va_TraceMsg("\tb_picture_fraction            = %d.\n",
-                p->b_picture_fraction);
-    va_TraceMsg("\tcbp_table                     = %d.\n",
-                p->cbp_table);
-    va_TraceMsg("\tmb_mode_table                 = %d.\n",
-                p->mb_mode_table);
-    va_TraceMsg("\trange_reduction_frame         = %d.\n",
-                p->range_reduction_frame);
-    va_TraceMsg("\trounding_control              = %d.\n",
-                p->rounding_control);
-    va_TraceMsg("\tpost_processing               = %d.\n",
-                p->post_processing);
-    va_TraceMsg("\tpicture_resolution_index      = %d.\n",
-                p->picture_resolution_index);
-    va_TraceMsg("\tluma_scale                    = %d.\n",
-                p->luma_scale);
-    va_TraceMsg("\tluma_shift                    = %d.\n",
-                p->luma_shift);
-    va_TraceMsg("\tpicture_type                  = %d.\n",
-                p->picture_fields.bits.picture_type);
-    va_TraceMsg("\tframe_coding_mode             = %d.\n",
-                p->picture_fields.bits.frame_coding_mode);
-    va_TraceMsg("\ttop_field_first               = %d.\n",
-                p->picture_fields.bits.top_field_first);
-    va_TraceMsg("\tis_first_field                = %d.\n",
-                p->picture_fields.bits.is_first_field);
-    va_TraceMsg("\tintensity_compensation        = %d.\n",
-                p->picture_fields.bits.intensity_compensation);
-    va_TraceMsg("  ---------------------------------\n");
-    va_TraceMsg("\tmv_type_mb                    = %d.\n",
-                p->raw_coding.flags.mv_type_mb);
-    va_TraceMsg("\tdirect_mb                     = %d.\n",
-                p->raw_coding.flags.direct_mb);
-    va_TraceMsg("\tskip_mb                       = %d.\n",
-                p->raw_coding.flags.skip_mb);
-    va_TraceMsg("\tfield_tx                      = %d.\n",
-                p->raw_coding.flags.field_tx);
-    va_TraceMsg("\tforward_mb                    = %d.\n",
-                p->raw_coding.flags.forward_mb);
-    va_TraceMsg("\tac_pred                       = %d.\n",
-                p->raw_coding.flags.ac_pred);
-    va_TraceMsg("\toverflags                     = %d.\n",
-                p->raw_coding.flags.overflags);
-    va_TraceMsg("  ---------------------------------\n");
-    va_TraceMsg("\tbp_mv_type_mb                 = %d.\n",
-                p->bitplane_present.flags.bp_mv_type_mb);
-    va_TraceMsg("\tbp_direct_mb                  = %d.\n",
-                p->bitplane_present.flags.bp_direct_mb);
-    va_TraceMsg("\tbp_skip_mb                    = %d.\n",
-                p->bitplane_present.flags.bp_skip_mb);
-    va_TraceMsg("\tbp_field_tx                   = %d.\n",
-                p->bitplane_present.flags.bp_field_tx);
-    va_TraceMsg("\tbp_forward_mb                 = %d.\n",
-                p->bitplane_present.flags.bp_forward_mb);
-    va_TraceMsg("\tbp_ac_pred                    = %d.\n",
-                p->bitplane_present.flags.bp_ac_pred);
-    va_TraceMsg("\tbp_overflags                  = %d.\n",
-                p->bitplane_present.flags.bp_overflags);
-    va_TraceMsg("  ---------------------------------\n");
-    va_TraceMsg("\treference_distance_flag       = %d.\n",
-                p->reference_fields.bits.reference_distance_flag);
-    va_TraceMsg("\treference_distance            = %d.\n",
-                p->reference_fields.bits.reference_distance);
-    va_TraceMsg("\tnum_reference_pictures        = %d.\n",
-                p->reference_fields.bits.num_reference_pictures);
-    va_TraceMsg("\treference_field_pic_indicator = %d.\n",
-                p->reference_fields.bits.reference_field_pic_indicator);
-    va_TraceMsg("\tmv_mode                       = %d.\n",
-                p->mv_fields.bits.mv_mode);
-    va_TraceMsg("\tmv_mode2                      = %d.\n",
-                p->mv_fields.bits.mv_mode2);
-    va_TraceMsg("\tmv_table                      = %d.\n",
-                p->mv_fields.bits.mv_table);
-    va_TraceMsg("\ttwo_mv_block_pattern_table    = %d.\n",
-                p->mv_fields.bits.two_mv_block_pattern_table);
-    va_TraceMsg("\tfour_mv_switch                = %d.\n",
-                p->mv_fields.bits.four_mv_switch);
-    va_TraceMsg("\tfour_mv_block_pattern_table   = %d.\n",
-                p->mv_fields.bits.four_mv_block_pattern_table);
-    va_TraceMsg("\textended_mv_flag              = %d.\n",
-                p->mv_fields.bits.extended_mv_flag);
-    va_TraceMsg("\textended_mv_range             = %d.\n",
-                p->mv_fields.bits.extended_mv_range);
-    va_TraceMsg("\textended_dmv_flag             = %d.\n",
-                p->mv_fields.bits.extended_dmv_flag);
-    va_TraceMsg("\textended_dmv_range            = %d.\n",
-                p->mv_fields.bits.extended_dmv_range);
-    va_TraceMsg("\tdquant                        = %d.\n",
-                p->pic_quantizer_fields.bits.dquant);
-    va_TraceMsg("\tquantizer                     = %d.\n",
-                p->pic_quantizer_fields.bits.quantizer);
-    va_TraceMsg("\thalf_qp                       = %d.\n",
-                p->pic_quantizer_fields.bits.half_qp);
-    va_TraceMsg("\tpic_quantizer_scale           = %d.\n",
-                p->pic_quantizer_fields.bits.pic_quantizer_scale);
-    va_TraceMsg("\tpic_quantizer_type            = %d.\n",
-                p->pic_quantizer_fields.bits.pic_quantizer_type);
-    va_TraceMsg("\tdq_frame                      = %d.\n",
-                p->pic_quantizer_fields.bits.dq_frame);
-    va_TraceMsg("\tdq_profile                    = %d.\n",
-                p->pic_quantizer_fields.bits.dq_profile);
-    va_TraceMsg("\tdq_sb_edge                    = %d.\n",
-                p->pic_quantizer_fields.bits.dq_sb_edge);
-    va_TraceMsg("\tdq_db_edge                    = %d.\n",
-                p->pic_quantizer_fields.bits.dq_db_edge);
-    va_TraceMsg("\tdq_binary_level               = %d.\n",
-                p->pic_quantizer_fields.bits.dq_binary_level);
-    va_TraceMsg("\talt_pic_quantizer             = %d.\n",
-                p->pic_quantizer_fields.bits.alt_pic_quantizer);
-    va_TraceMsg("\tvariable_sized_transform_flag = %d.\n",
-                p->transform_fields.bits.variable_sized_transform_flag);
-    va_TraceMsg("\tmb_level_transform_type_flag  = %d.\n",
-                p->transform_fields.bits.mb_level_transform_type_flag);
-    va_TraceMsg("\tframe_level_transform_type    = %d.\n",
-                p->transform_fields.bits.frame_level_transform_type);
-    va_TraceMsg("\ttransform_ac_codingset_idx1   = %d.\n",
-                p->transform_fields.bits.transform_ac_codingset_idx1);
-    va_TraceMsg("\ttransform_ac_codingset_idx2   = %d.\n",
-                p->transform_fields.bits.transform_ac_codingset_idx2);
-    va_TraceMsg("\tintra_transform_dc_table      = %d.\n",
-                p->transform_fields.bits.intra_transform_dc_table);
+    DPY2INDEX(dpy);
+    
+    va_TraceMsg(idx, "VAPictureParameterBufferVC1\n");
+    
+    va_TraceMsg(idx, "\tforward_reference_picture = 0x%08x\n", p->forward_reference_picture);
+    va_TraceMsg(idx, "\tbackward_reference_picture = 0x%08x\n", p->backward_reference_picture);
+    va_TraceMsg(idx, "\tinloop_decoded_picture = 0x%08x\n", p->inloop_decoded_picture);
+    
+    va_TraceMsg(idx, "\tpulldown = %d\n", p->sequence_fields.bits.pulldown);
+    va_TraceMsg(idx, "\tinterlace = %d\n", p->sequence_fields.bits.interlace);
+    va_TraceMsg(idx, "\ttfcntrflag = %d\n", p->sequence_fields.bits.tfcntrflag);
+    va_TraceMsg(idx, "\tfinterpflag = %d\n", p->sequence_fields.bits.finterpflag);
+    va_TraceMsg(idx, "\tpsf = %d\n", p->sequence_fields.bits.psf);
+    va_TraceMsg(idx, "\tmultires = %d\n", p->sequence_fields.bits.multires);
+    va_TraceMsg(idx, "\toverlap = %d\n", p->sequence_fields.bits.overlap);
+    va_TraceMsg(idx, "\tsyncmarker = %d\n", p->sequence_fields.bits.syncmarker);
+    va_TraceMsg(idx, "\trangered = %d\n", p->sequence_fields.bits.rangered);
+    va_TraceMsg(idx, "\tmax_b_frames = %d\n", p->sequence_fields.bits.max_b_frames);
+    va_TraceMsg(idx, "\tcoded_width = %d\n", p->coded_width);
+    va_TraceMsg(idx, "\tcoded_height = %d\n", p->coded_height);
+    va_TraceMsg(idx, "\tclosed_entry = %d\n", p->entrypoint_fields.bits.closed_entry);
+    va_TraceMsg(idx, "\tbroken_link = %d\n", p->entrypoint_fields.bits.broken_link);
+    va_TraceMsg(idx, "\tclosed_entry = %d\n", p->entrypoint_fields.bits.closed_entry);
+    va_TraceMsg(idx, "\tpanscan_flag = %d\n", p->entrypoint_fields.bits.panscan_flag);
+    va_TraceMsg(idx, "\tloopfilter = %d\n", p->entrypoint_fields.bits.loopfilter);
+    va_TraceMsg(idx, "\tconditional_overlap_flag = %d\n", p->conditional_overlap_flag);
+    va_TraceMsg(idx, "\tfast_uvmc_flag = %d\n", p->fast_uvmc_flag);
+    va_TraceMsg(idx, "\trange_mapping_luma_flag = %d\n", p->range_mapping_fields.bits.luma_flag);
+    va_TraceMsg(idx, "\trange_mapping_luma = %d\n", p->range_mapping_fields.bits.luma);
+    va_TraceMsg(idx, "\trange_mapping_chroma_flag = %d\n", p->range_mapping_fields.bits.chroma_flag);
+    va_TraceMsg(idx, "\trange_mapping_chroma = %d\n", p->range_mapping_fields.bits.chroma);
+    va_TraceMsg(idx, "\tb_picture_fraction = %d\n", p->b_picture_fraction);
+    va_TraceMsg(idx, "\tcbp_table = %d\n", p->cbp_table);
+    va_TraceMsg(idx, "\tmb_mode_table = %d\n", p->mb_mode_table);
+    va_TraceMsg(idx, "\trange_reduction_frame = %d\n", p->range_reduction_frame);
+    va_TraceMsg(idx, "\trounding_control = %d\n", p->rounding_control);
+    va_TraceMsg(idx, "\tpost_processing = %d\n", p->post_processing);
+    va_TraceMsg(idx, "\tpicture_resolution_index = %d\n", p->picture_resolution_index);
+    va_TraceMsg(idx, "\tluma_scale = %d\n", p->luma_scale);
+    va_TraceMsg(idx, "\tluma_shift = %d\n", p->luma_shift);
+    va_TraceMsg(idx, "\tpicture_type = %d\n", p->picture_fields.bits.picture_type);
+    va_TraceMsg(idx, "\tframe_coding_mode = %d\n", p->picture_fields.bits.frame_coding_mode);
+    va_TraceMsg(idx, "\ttop_field_first = %d\n", p->picture_fields.bits.top_field_first);
+    va_TraceMsg(idx, "\tis_first_field = %d\n", p->picture_fields.bits.is_first_field);
+    va_TraceMsg(idx, "\tintensity_compensation = %d\n", p->picture_fields.bits.intensity_compensation);
+    va_TraceMsg(idx, "\tmv_type_mb = %d\n", p->raw_coding.flags.mv_type_mb);
+    va_TraceMsg(idx, "\tdirect_mb = %d\n", p->raw_coding.flags.direct_mb);
+    va_TraceMsg(idx, "\tskip_mb = %d\n", p->raw_coding.flags.skip_mb);
+    va_TraceMsg(idx, "\tfield_tx = %d\n", p->raw_coding.flags.field_tx);
+    va_TraceMsg(idx, "\tforward_mb = %d\n", p->raw_coding.flags.forward_mb);
+    va_TraceMsg(idx, "\tac_pred = %d\n", p->raw_coding.flags.ac_pred);
+    va_TraceMsg(idx, "\toverflags = %d\n", p->raw_coding.flags.overflags);
+    va_TraceMsg(idx, "\tbp_mv_type_mb = %d\n", p->bitplane_present.flags.bp_mv_type_mb);
+    va_TraceMsg(idx, "\tbp_direct_mb = %d\n", p->bitplane_present.flags.bp_direct_mb);
+    va_TraceMsg(idx, "\tbp_skip_mb = %d\n", p->bitplane_present.flags.bp_skip_mb);
+    va_TraceMsg(idx, "\tbp_field_tx = %d\n", p->bitplane_present.flags.bp_field_tx);
+    va_TraceMsg(idx, "\tbp_forward_mb = %d\n", p->bitplane_present.flags.bp_forward_mb);
+    va_TraceMsg(idx, "\tbp_ac_pred = %d\n", p->bitplane_present.flags.bp_ac_pred);
+    va_TraceMsg(idx, "\tbp_overflags = %d\n", p->bitplane_present.flags.bp_overflags);
+    va_TraceMsg(idx, "\treference_distance_flag = %d\n", p->reference_fields.bits.reference_distance_flag);
+    va_TraceMsg(idx, "\treference_distance = %d\n", p->reference_fields.bits.reference_distance);
+    va_TraceMsg(idx, "\tnum_reference_pictures = %d\n", p->reference_fields.bits.num_reference_pictures);
+    va_TraceMsg(idx, "\treference_field_pic_indicator = %d\n", p->reference_fields.bits.reference_field_pic_indicator);
+    va_TraceMsg(idx, "\tmv_mode = %d\n", p->mv_fields.bits.mv_mode);
+    va_TraceMsg(idx, "\tmv_mode2 = %d\n", p->mv_fields.bits.mv_mode2);
+    va_TraceMsg(idx, "\tmv_table = %d\n", p->mv_fields.bits.mv_table);
+    va_TraceMsg(idx, "\ttwo_mv_block_pattern_table = %d\n", p->mv_fields.bits.two_mv_block_pattern_table);
+    va_TraceMsg(idx, "\tfour_mv_switch = %d\n", p->mv_fields.bits.four_mv_switch);
+    va_TraceMsg(idx, "\tfour_mv_block_pattern_table = %d\n", p->mv_fields.bits.four_mv_block_pattern_table);
+    va_TraceMsg(idx, "\textended_mv_flag = %d\n", p->mv_fields.bits.extended_mv_flag);
+    va_TraceMsg(idx, "\textended_mv_range = %d\n", p->mv_fields.bits.extended_mv_range);
+    va_TraceMsg(idx, "\textended_dmv_flag = %d\n", p->mv_fields.bits.extended_dmv_flag);
+    va_TraceMsg(idx, "\textended_dmv_range = %d\n", p->mv_fields.bits.extended_dmv_range);
+    va_TraceMsg(idx, "\tdquant = %d\n", p->pic_quantizer_fields.bits.dquant);
+    va_TraceMsg(idx, "\tquantizer = %d\n", p->pic_quantizer_fields.bits.quantizer);
+    va_TraceMsg(idx, "\thalf_qp = %d\n", p->pic_quantizer_fields.bits.half_qp);
+    va_TraceMsg(idx, "\tpic_quantizer_scale = %d\n", p->pic_quantizer_fields.bits.pic_quantizer_scale);
+    va_TraceMsg(idx, "\tpic_quantizer_type = %d\n", p->pic_quantizer_fields.bits.pic_quantizer_type);
+    va_TraceMsg(idx, "\tdq_frame = %d\n", p->pic_quantizer_fields.bits.dq_frame);
+    va_TraceMsg(idx, "\tdq_profile = %d\n", p->pic_quantizer_fields.bits.dq_profile);
+    va_TraceMsg(idx, "\tdq_sb_edge = %d\n", p->pic_quantizer_fields.bits.dq_sb_edge);
+    va_TraceMsg(idx, "\tdq_db_edge = %d\n", p->pic_quantizer_fields.bits.dq_db_edge);
+    va_TraceMsg(idx, "\tdq_binary_level = %d\n", p->pic_quantizer_fields.bits.dq_binary_level);
+    va_TraceMsg(idx, "\talt_pic_quantizer = %d\n", p->pic_quantizer_fields.bits.alt_pic_quantizer);
+    va_TraceMsg(idx, "\tvariable_sized_transform_flag = %d\n", p->transform_fields.bits.variable_sized_transform_flag);
+    va_TraceMsg(idx, "\tmb_level_transform_type_flag = %d\n", p->transform_fields.bits.mb_level_transform_type_flag);
+    va_TraceMsg(idx, "\tframe_level_transform_type = %d\n", p->transform_fields.bits.frame_level_transform_type);
+    va_TraceMsg(idx, "\ttransform_ac_codingset_idx1 = %d\n", p->transform_fields.bits.transform_ac_codingset_idx1);
+    va_TraceMsg(idx, "\ttransform_ac_codingset_idx2 = %d\n", p->transform_fields.bits.transform_ac_codingset_idx2);
+    va_TraceMsg(idx, "\tintra_transform_dc_table = %d\n", p->transform_fields.bits.intra_transform_dc_table);
 }
 
 static void va_TraceVASliceParameterBufferVC1(
@@ -740,13 +1138,17 @@ static void va_TraceVASliceParameterBufferVC1(
 )
 {
     VASliceParameterBufferVC1 *p = (VASliceParameterBufferVC1*)data;
+    DPY2INDEX(dpy);
+
+    trace_context[idx].trace_slice_no++;
+    trace_context[idx].trace_slice_size = p->slice_data_size;
 
-    va_TraceMsg ("========== SLICE NUMBER ==========\n");
-    va_TraceMsg ("    slice_data_size               = %d\n", p->slice_data_size);
-    va_TraceMsg ("    slice_data_offset             = %d\n", p->slice_data_offset);
-    va_TraceMsg ("    slice_data_flag               = %d\n", p->slice_data_flag);
-    va_TraceMsg ("    macroblock_offset             = %d\n", p->macroblock_offset);
-    va_TraceMsg ("    slice_vertical_position       = %d\n", p->slice_vertical_position);
+    va_TraceMsg(idx, "VASliceParameterBufferVC1\n");
+    va_TraceMsg(idx, "\tslice_data_size = %d\n", p->slice_data_size);
+    va_TraceMsg(idx, "\tslice_data_offset = %d\n", p->slice_data_offset);
+    va_TraceMsg(idx, "\tslice_data_flag = %d\n", p->slice_data_flag);
+    va_TraceMsg(idx, "\tmacroblock_offset = %d\n", p->macroblock_offset);
+    va_TraceMsg(idx, "\tslice_vertical_position = %d\n", p->slice_vertical_position);
 }
 
 void va_TraceBeginPicture(
@@ -755,15 +1157,17 @@ void va_TraceBeginPicture(
     VASurfaceID render_target
 )
 {
-    int i;
+    DPY2INDEX(dpy);
 
-    va_TraceMsg("\tcontext = 0x%08x\n", context);
-    va_TraceMsg("\t\trender_targets = 0x%08x\n", render_target);
+    TRACE_FUNCNAME(idx);
+    
+    va_TraceMsg(idx, "\tcontext = 0x%08x\n", context);
+    va_TraceMsg(idx, "\trender_targets = 0x%08x\n", render_target);
 
-    trace_rendertarget = render_target; /* for surface data dump after vaEndPicture */
+    trace_context[idx].trace_rendertarget = render_target; /* for surface data dump after vaEndPicture */
 
-    trace_frame++;
-    trace_slice = 0;
+    trace_context[idx].trace_frame_no++;
+    trace_context[idx].trace_slice_no = 0;
 }
 
 static void va_TraceMPEG2Buf(
@@ -784,25 +1188,30 @@ static void va_TraceMPEG2Buf(
         va_TraceVAIQMatrixBufferMPEG2(dpy, context, buffer, type, size, num_elements, pbuf);
         break;
     case VABitPlaneBufferType:
+        va_TraceVABuffers(dpy, context, buffer, type, size, num_elements, pbuf);
         break;
     case VASliceGroupMapBufferType:
+        va_TraceVABuffers(dpy, context, buffer, type, size, num_elements, pbuf);
         break;
     case VASliceParameterBufferType:
-        trace_slice++;
         va_TraceVASliceParameterBufferMPEG2(dpy, context, buffer, type, size, num_elements, pbuf);
         break;
     case VASliceDataBufferType:
         va_TraceVABuffers(dpy, context, buffer, type, size, num_elements, pbuf);
         break;
     case VAMacroblockParameterBufferType:
+        va_TraceVABuffers(dpy, context, buffer, type, size, num_elements, pbuf);
         break;
     case VAResidualDataBufferType:
+        va_TraceVABuffers(dpy, context, buffer, type, size, num_elements, pbuf);
         break;
     case VADeblockingParameterBufferType:
+        va_TraceVABuffers(dpy, context, buffer, type, size, num_elements, pbuf);
         break;
     case VAImageBufferType:
         break;
     case VAProtectedSliceDataBufferType:
+        va_TraceVABuffers(dpy, context, buffer, type, size, num_elements, pbuf);
         break;
     case VAEncCodedBufferType:
         break;
@@ -816,6 +1225,8 @@ static void va_TraceMPEG2Buf(
         break;
     case VAEncH264SEIBufferType:
         break;
+    default:
+        break;
     }
 }
 
@@ -837,6 +1248,7 @@ static void va_TraceMPEG4Buf(
         va_TraceVAIQMatrixBufferMPEG4(dpy, context, buffer, type, size, num_elements, pbuf);
         break;
     case VABitPlaneBufferType:
+        va_TraceVABuffers(dpy, context, buffer, type, size, num_elements, pbuf);
         break;
     case VASliceGroupMapBufferType:
         break;
@@ -847,10 +1259,13 @@ static void va_TraceMPEG4Buf(
         va_TraceVABuffers(dpy, context, buffer, type, size, num_elements, pbuf);
         break;
     case VAMacroblockParameterBufferType:
+        va_TraceVABuffers(dpy, context, buffer, type, size, num_elements, pbuf);
         break;
     case VAResidualDataBufferType:
+        va_TraceVABuffers(dpy, context, buffer, type, size, num_elements, pbuf);
         break;
     case VADeblockingParameterBufferType:
+        va_TraceVABuffers(dpy, context, buffer, type, size, num_elements, pbuf);
         break;
     case VAImageBufferType:
         break;
@@ -860,10 +1275,13 @@ static void va_TraceMPEG4Buf(
     case VAEncCodedBufferType:
         break;
     case VAEncSequenceParameterBufferType:
+        va_TraceVABuffers(dpy, context, buffer, type, size, num_elements, pbuf);
         break;
     case VAEncPictureParameterBufferType:
+        va_TraceVABuffers(dpy, context, buffer, type, size, num_elements, pbuf);
         break;
     case VAEncSliceParameterBufferType:
+        va_TraceVAEncSliceParameterBuffer(dpy, context, buffer, type, size, num_elements, pbuf);
         break;
     case VAEncH264VUIBufferType:
         break;
@@ -885,6 +1303,8 @@ static void va_TraceH264Buf(
     void *pbuf
 )
 {
+    DPY2INDEX(dpy);
+    
     switch (type) {
     case VAPictureParameterBufferType:
         va_TraceVAPictureParameterBufferH264(dpy, context, buffer, type, size, num_elements, pbuf);
@@ -893,20 +1313,25 @@ static void va_TraceH264Buf(
         va_TraceVAIQMatrixBufferH264(dpy, context, buffer, type, size, num_elements, pbuf);
         break;
     case VABitPlaneBufferType:
+        va_TraceVABuffers(dpy, context, buffer, type, size, num_elements, pbuf);        
         break;
     case VASliceGroupMapBufferType:
+        va_TraceVABuffers(dpy, context, buffer, type, size, num_elements, pbuf);
         break;
     case VASliceParameterBufferType:
         va_TraceVASliceParameterBufferH264(dpy, context, buffer, type, size, num_elements, pbuf);
         break;
     case VASliceDataBufferType:
-        va_TraceVABuffers(dpy, context, buffer, type, size, num_elements, pbuf);
+        va_TraceVABuffers(dpy, context, buffer, type, trace_context[idx].trace_slice_size, num_elements, pbuf);
         break;
     case VAMacroblockParameterBufferType:
+        va_TraceVABuffers(dpy, context, buffer, type, size, num_elements, pbuf);        
         break;
     case VAResidualDataBufferType:
+        va_TraceVABuffers(dpy, context, buffer, type, size, num_elements, pbuf);        
         break;
     case VADeblockingParameterBufferType:
+        va_TraceVABuffers(dpy, context, buffer, type, size, num_elements, pbuf);
         break;
     case VAImageBufferType:
         break;
@@ -916,14 +1341,22 @@ static void va_TraceH264Buf(
     case VAEncCodedBufferType:
         break;
     case VAEncSequenceParameterBufferType:
+        va_TraceVAEncSequenceParameterBufferH264(dpy, context, buffer, type, size, num_elements, pbuf);
         break;
     case VAEncPictureParameterBufferType:
+        va_TraceVAEncPictureParameterBufferH264(dpy, context, buffer, type, size, num_elements, pbuf);
         break;
     case VAEncSliceParameterBufferType:
+        va_TraceVAEncSliceParameterBuffer(dpy, context, buffer, type, size, num_elements, pbuf);
         break;
     case VAEncH264VUIBufferType:
+        va_TraceVABuffers(dpy, context, buffer, type, size, num_elements, pbuf);
         break;
     case VAEncH264SEIBufferType:
+        va_TraceVABuffers(dpy, context, buffer, type, size, num_elements, pbuf);
+        break;
+    case VAEncMiscParameterBufferType:
+        va_TraceVAEncMiscParameterBuffer(dpy, context, buffer, type, size, num_elements, pbuf);
         break;
     default:
         break;
@@ -941,6 +1374,8 @@ static void va_TraceVC1Buf(
     void *pbuf
 )
 {
+    DPY2INDEX(dpy);
+
     switch (type) {
     case VAPictureParameterBufferType:
         va_TraceVAPictureParameterBufferVC1(dpy, context, buffer, type, size, num_elements, pbuf);
@@ -951,18 +1386,22 @@ static void va_TraceVC1Buf(
         va_TraceVABuffers(dpy, context, buffer, type, size, num_elements, pbuf);
         break;
     case VASliceGroupMapBufferType:
+        va_TraceVABuffers(dpy, context, buffer, type, size, num_elements, pbuf);
         break;
     case VASliceParameterBufferType:
         va_TraceVASliceParameterBufferVC1(dpy, context, buffer, type, size, num_elements, pbuf);
         break;
     case VASliceDataBufferType:
-        va_TraceVABuffers(dpy, context, buffer, type, size, num_elements, pbuf);
+        va_TraceVABuffers(dpy, context, buffer, type, trace_context[idx].trace_slice_size, num_elements, pbuf);
         break;
     case VAMacroblockParameterBufferType:
+        va_TraceVABuffers(dpy, context, buffer, type, size, num_elements, pbuf);
         break;
     case VAResidualDataBufferType:
+        va_TraceVABuffers(dpy, context, buffer, type, size, num_elements, pbuf);
         break;
     case VADeblockingParameterBufferType:
+        va_TraceVABuffers(dpy, context, buffer, type, size, num_elements, pbuf);
         break;
     case VAImageBufferType:
         break;
@@ -972,14 +1411,13 @@ static void va_TraceVC1Buf(
     case VAEncCodedBufferType:
         break;
     case VAEncSequenceParameterBufferType:
+        va_TraceVABuffers(dpy, context, buffer, type, size, num_elements, pbuf);
         break;
     case VAEncPictureParameterBufferType:
+        va_TraceVABuffers(dpy, context, buffer, type, size, num_elements, pbuf);
         break;
     case VAEncSliceParameterBufferType:
-        break;
-    case VAEncH264VUIBufferType:
-        break;
-    case VAEncH264SEIBufferType:
+        va_TraceVABuffers(dpy, context, buffer, type, size, num_elements, pbuf);
         break;
     default:
         break;
@@ -997,44 +1435,74 @@ void va_TraceRenderPicture(
     unsigned int size;
     unsigned int num_elements;
     int i;
+    DPY2INDEX(dpy);
 
-    va_TraceMsg("\tcontext = 0x%08x\n", context);
-    va_TraceMsg("\tnum_buffers = %d\n", num_buffers);
+    TRACE_FUNCNAME(idx);
+    
+    va_TraceMsg(idx, "\tcontext = 0x%08x\n", context);
+    va_TraceMsg(idx, "\tnum_buffers = %d\n", num_buffers);
     for (i = 0; i < num_buffers; i++) {
         void *pbuf;
-
+        unsigned int j;
+        
         /* get buffer type information */
         vaBufferInfo(dpy, context, buffers[i], &type, &size, &num_elements);
-        
-        va_TraceMsg("\t\tbuffers[%d] = 0x%08x\n", i, buffers[i]);
-        va_TraceMsg("\t\t\ttype = %s\n", buffer_type_to_string(type));
-        va_TraceMsg("\t\t\tsize = %d\n", size);
-        va_TraceMsg("\t\t\tnum_elements = %d\n", num_elements);
 
+        va_TraceMsg(idx, "\t---------------------------\n");
+        va_TraceMsg(idx, "\tbuffers[%d] = 0x%08x\n", i, buffers[i]);
+        va_TraceMsg(idx, "\t  type = %s\n", buffer_type_to_string(type));
+        va_TraceMsg(idx, "\t  size = %d\n", size);
+        va_TraceMsg(idx, "\t  num_elements = %d\n", num_elements);
 
         vaMapBuffer(dpy, buffers[i], &pbuf);
 
-        switch (trace_profile) {
+        switch (trace_context[idx].trace_profile) {
         case VAProfileMPEG2Simple:
         case VAProfileMPEG2Main:
-            va_TraceMPEG2Buf(dpy, context, buffers[i], type, size, num_elements, pbuf);
+            for (j=0; j<num_elements; j++) {
+                va_TraceMsg(idx, "\t  element[%d] = ", j);
+                va_TraceMsg(idx, "\t------------------", j);
+                va_TraceMPEG2Buf(dpy, context, buffers[i], type, size, num_elements, pbuf + size*j);
+            }
             break;
         case VAProfileMPEG4Simple:
         case VAProfileMPEG4AdvancedSimple:
         case VAProfileMPEG4Main:
-            va_TraceMPEG4Buf(dpy, context, buffers[i], type, size, num_elements, pbuf);
+            for (j=0; j<num_elements; j++) {
+                va_TraceMsg(idx, "\t  element[%d] = ", j);
+                va_TraceMsg(idx, "\t------------------", j);
+                va_TraceMPEG4Buf(dpy, context, buffers[i], type, size, num_elements, pbuf + size*j);
+            }
             break;
         case VAProfileH264Baseline:
         case VAProfileH264Main:
         case VAProfileH264High:
-            va_TraceH264Buf(dpy, context, buffers[i], type, size, num_elements, pbuf);
+            for (j=0; j<num_elements; j++) {
+                va_TraceMsg(idx, "\t  element[%d] = ", j);
+                va_TraceMsg(idx, "\t------------------", j);
+                
+                va_TraceH264Buf(dpy, context, buffers[i], type, size, num_elements, pbuf + size*j);
+            }
             break;
         case VAProfileVC1Simple:
         case VAProfileVC1Main:
         case VAProfileVC1Advanced:
-            va_TraceVC1Buf(dpy, context, buffers[i], type, size, num_elements, pbuf);
+            for (j=0; j<num_elements; j++) {
+                va_TraceMsg(idx, "\t element[%d] = ", j);
+                va_TraceMsg(idx, "\t------------------", j);
+                
+                va_TraceVC1Buf(dpy, context, buffers[i], type, size, num_elements, pbuf + size*j);
+            }
             break;
         case VAProfileH263Baseline:
+            for (j=0; j<num_elements; j++) {
+                va_TraceMsg(idx, "\t element[%d] = ", j);
+                va_TraceMsg(idx, "\t------------------", j);
+                
+                va_TraceMPEG4Buf(dpy, context, buffers[i], type, size, num_elements, pbuf + size*j);
+            }
+            break;
+        default:
             break;
         }
 
@@ -1048,80 +1516,149 @@ void va_TraceEndPicture(
     VAContextID context
 )
 {
-    int i, j;
-    unsigned int fourcc; /* following are output argument */
-    unsigned int luma_stride;
-    unsigned int chroma_u_stride;
-    unsigned int chroma_v_stride;
-    unsigned int luma_offset;
-    unsigned int chroma_u_offset;
-    unsigned int chroma_v_offset;
-    unsigned int buffer_name;
-    void *buffer;
-    char *Y_data, *UV_data, *tmp;
-    
-    VAStatus va_status;
-    
-    va_TraceMsg("\tcontext = 0x%08x\n", context);
-    va_TraceMsg("\t\trender_targets = 0x%08x\n", trace_rendertarget);
+    DPY2INDEX(dpy);
+
+    TRACE_FUNCNAME(idx);
     
-    /* force the pipleline finish rendering */
-    vaSyncSurface(dpy, trace_rendertarget);
+    va_TraceMsg(idx, "\tcontext = 0x%08x\n", context);
+    va_TraceMsg(idx, "\trender_targets = 0x%08x\n", trace_context[idx].trace_rendertarget);
 
-    va_TraceMsg("***dump surface data***\n", trace_rendertarget);
 
-    va_status = vaLockSurface(dpy, trace_rendertarget, &fourcc, &luma_stride, &chroma_u_stride, &chroma_v_stride,
-                                      &luma_offset, &chroma_u_offset, &chroma_v_offset, &buffer_name, &buffer);
+    /* want to trace codedbuf, and it is encode */
+    if (trace_context[idx].trace_fp_codedbuf &&
+        ((trace_context[idx].trace_entrypoint == VAEntrypointEncSlice) ||
+        (trace_context[idx].trace_entrypoint == VAEntrypointEncPicture))) {
+        /* force the pipleline finish rendering */
+        vaSyncSurface(dpy, trace_context[idx].trace_rendertarget);
+        va_TraceCodedBuf(dpy);
+    }
 
-    if (va_status != VA_STATUS_SUCCESS)
-        return;
-    
-    va_TraceMsg("\tfourcc=0x%08x\n", fourcc);
-    va_TraceMsg("\twidth=%d\n", trace_width);
-    va_TraceMsg("\theight=%d\n", trace_height);
-    va_TraceMsg("\tluma_stride=%d\n", luma_stride);
-    va_TraceMsg("\tchroma_u_stride=%d\n", chroma_u_stride);
-    va_TraceMsg("\tchroma_v_stride=%d\n", chroma_v_stride);
-    va_TraceMsg("\tluma_offset=%d\n", luma_offset);
-    va_TraceMsg("\tchroma_u_offset=%d\n", chroma_u_offset);
-    va_TraceMsg("\tchroma_v_offset=%d\n", chroma_v_offset);
-
-    if (!buffer) {
-        vaUnlockSurface(dpy, trace_rendertarget);
-        return;
+    /* trace decoded surface for decoding, or the source sourface for encoding */
+    if (trace_context[idx].trace_fp_surface) {
+        /* force the pipleline finish rendering */
+        vaSyncSurface(dpy, trace_context[idx].trace_rendertarget);
+        
+        va_TraceSurface(dpy);
     }
+}
 
-    Y_data = buffer;
-    UV_data = buffer + luma_offset;
 
-    tmp = Y_data;
-    va_TraceMsg("**Y data**\n");
-    for (i=0; i<trace_height; i++) {
-        for (j=0; j<trace_width; j++) {
-            if ((j%16) == 0)
-                va_TraceMsg("\n0x%08x:", j + i*trace_width);
-            va_TraceMsg(" %02x", tmp[j]);
-        }
+void va_TraceMaxNumDisplayAttributes (
+    VADisplay dpy,
+    int number
+)
+{
+    DPY2INDEX(dpy);
 
-        va_TraceMsg("\n");
-        tmp = Y_data + i * luma_stride;
+    TRACE_FUNCNAME(idx);
+    
+    va_TraceMsg(idx, "\t>max_display_attributes = %d\n", number);
+}
+
+void va_TraceQueryDisplayAttributes (
+    VADisplay dpy,
+    VADisplayAttribute *attr_list,	/* out */
+    int *num_attributes			/* out */
+)
+{
+    int i;
+    
+    DPY2INDEX(dpy);
+    
+    va_TraceMsg(idx, "\tnum_attributes = %d\n", *num_attributes);
+
+    for (i=0; i<*num_attributes; i++) {
+        va_TraceMsg(idx, "\tattr_list[%d] =\n");
+        va_TraceMsg(idx, "\t  typ = 0x%08x\n", attr_list[i].type);
+        va_TraceMsg(idx, "\t  min_value = %d\n", attr_list[i].min_value);
+        va_TraceMsg(idx, "\t  max_value = %d\n", attr_list[i].max_value);
+        va_TraceMsg(idx, "\t  value = %d\n", attr_list[i].value);
+        va_TraceMsg(idx, "\t  flags = %d\n", attr_list[i].flags);
     }
+}
 
-    tmp = UV_data;
-    if (fourcc == VA_FOURCC_NV12) {
-        va_TraceMsg("**UV data**\n");
-        
-        for (i=0; i<trace_height/2; i++) {
-            for (j=0; j<trace_width; j++) {
-                if ((j%16) == 0)
-                    va_TraceMsg("\n0x%08x:", j + i*trace_width);
-                va_TraceMsg(" %02x", tmp[j]);
-            }
 
-            va_TraceMsg("\n");
-            tmp = UV_data + i * chroma_u_stride;
-        }
+static void va_TraceDisplayAttributes (
+    VADisplay dpy,
+    VADisplayAttribute *attr_list,
+    int num_attributes
+)
+{
+    int i;
+    
+    DPY2INDEX(dpy);
+    
+    va_TraceMsg(idx, "\tnum_attributes = %d\n", num_attributes);
+    for (i=0; i<num_attributes; i++) {
+        va_TraceMsg(idx, "\tattr_list[%d] =\n");
+        va_TraceMsg(idx, "\t  typ = 0x%08x\n", attr_list[i].type);
+        va_TraceMsg(idx, "\t  min_value = %d\n", attr_list[i].min_value);
+        va_TraceMsg(idx, "\t  max_value = %d\n", attr_list[i].max_value);
+        va_TraceMsg(idx, "\t  value = %d\n", attr_list[i].value);
+        va_TraceMsg(idx, "\t  flags = %d\n", attr_list[i].flags);
     }
+}
+
+
+void va_TraceGetDisplayAttributes (
+    VADisplay dpy,
+    VADisplayAttribute *attr_list,
+    int num_attributes
+)
+{
+    DPY2INDEX(dpy);
 
-    vaUnlockSurface(dpy, trace_rendertarget);
+    TRACE_FUNCNAME(idx);
+
+    va_TraceDisplayAttributes (dpy, attr_list, num_attributes);
+}
+
+void va_TraceSetDisplayAttributes (
+    VADisplay dpy,
+    VADisplayAttribute *attr_list,
+    int num_attributes
+)
+{
+    DPY2INDEX(dpy);
+
+    TRACE_FUNCNAME(idx);
+
+    va_TraceDisplayAttributes (dpy, attr_list, num_attributes);
+}
+
+
+void va_TracePutSurface (
+    VADisplay dpy,
+    VASurfaceID surface,
+    void *draw, /* the target Drawable */
+    short srcx,
+    short srcy,
+    unsigned short srcw,
+    unsigned short srch,
+    short destx,
+    short desty,
+    unsigned short destw,
+    unsigned short desth,
+    VARectangle *cliprects, /* client supplied clip list */
+    unsigned int number_cliprects, /* number of clip rects in the clip list */
+    unsigned int flags /* de-interlacing flags */
+)
+{
+    DPY2INDEX(dpy);
+
+    TRACE_FUNCNAME(idx);
+    
+    va_TraceMsg(idx, "\tsurface = 0x%08x\n", surface);
+    va_TraceMsg(idx, "\tdraw = 0x%08x\n", draw);
+    va_TraceMsg(idx, "\tsrcx = %d\n", surface);
+    va_TraceMsg(idx, "\tsrcy = %d\n", surface);
+    va_TraceMsg(idx, "\tsrcw = %d\n", surface);
+    va_TraceMsg(idx, "\tsrch = %d\n", surface);
+    va_TraceMsg(idx, "\tdestx = %d\n", surface);
+    va_TraceMsg(idx, "\tdesty = %d\n", surface);
+    va_TraceMsg(idx, "\tdestw = %d\n", destw);
+    va_TraceMsg(idx, "\tdesth = %d\n", desth);
+    va_TraceMsg(idx, "\tcliprects = 0x%08x\n", cliprects);
+    va_TraceMsg(idx, "\tnumber_cliprects = %d\n", number_cliprects);
+    va_TraceMsg(idx, "\tflags = 0x%08x\n", flags);
 }
diff --git a/va/va_trace.h b/va/va_trace.h
index 1c860e3..bb1238f 100644
--- a/va/va_trace.h
+++ b/va/va_trace.h
@@ -25,10 +25,10 @@
 #ifndef VA_TRACE_H
 #define VA_TRACE_H
 
-void va_TraceInit(void);
-void va_TraceEnd(void);
+void va_TraceInit(VADisplay dpy);
+void va_TraceEnd(VADisplay dpy);
 
-void va_TraceMsg(const char *msg, ...);
+void va_TraceMsg(int idx, const char *msg, ...);
 
 void va_TraceCreateConfig(
     VADisplay dpy,
@@ -59,6 +59,14 @@ void va_TraceCreateContext(
     VAContextID *context		/* out */
 );
 
+
+void va_TraceMapBuffer (
+    VADisplay dpy,
+    VABufferID buf_id,	/* in */
+    void **pbuf 	/* out */
+);
+
+
 void va_TraceBeginPicture(
     VADisplay dpy,
     VAContextID context,
@@ -77,4 +85,48 @@ void va_TraceEndPicture(
     VAContextID context
 );
 
+
+void va_TraceMaxNumDisplayAttributes (
+    VADisplay dpy,
+    int number
+);
+
+void va_TraceQueryDisplayAttributes (
+    VADisplay dpy,
+    VADisplayAttribute *attr_list,	/* out */
+    int *num_attributes			/* out */
+);
+
+void va_TraceGetDisplayAttributes (
+    VADisplay dpy,
+    VADisplayAttribute *attr_list,
+    int num_attributes
+);
+
+void va_TraceSetDisplayAttributes (
+    VADisplay dpy,
+    VADisplayAttribute *attr_list,
+    int num_attributes
+);
+
+/* extern function called by display side */
+void va_TracePutSurface (
+    VADisplay dpy,
+    VASurfaceID surface,
+    void *draw, /* the target Drawable */
+    short srcx,
+    short srcy,
+    unsigned short srcw,
+    unsigned short srch,
+    short destx,
+    short desty,
+    unsigned short destw,
+    unsigned short desth,
+    VARectangle *cliprects, /* client supplied clip list */
+    unsigned int number_cliprects, /* number of clip rects in the clip list */
+    unsigned int flags /* de-interlacing flags */
+);
+
+
+
 #endif /* VA_TRACE_H */
diff --git a/va/x11/va_x11.c b/va/x11/va_x11.c
index cbd2614..70cea30 100644
--- a/va/x11/va_x11.c
+++ b/va/x11/va_x11.c
@@ -231,6 +231,31 @@ VADisplay vaGetDisplay (
 #define CTX(dpy) (((VADisplayContextP)dpy)->pDriverContext)
 #define CHECK_DISPLAY(dpy) if( !vaDisplayIsValid(dpy) ) { return VA_STATUS_ERROR_INVALID_DISPLAY; }
 
+extern int fool_postp; /* do nothing for vaPutSurface if set */
+extern int trace_flag; /* trace vaPutSurface parameters */
+#define VA_TRACE(trace_func,...)                \
+    if (trace_flag) {                           \
+        trace_func(__VA_ARGS__);                \
+    }
+
+void va_TracePutSurface (
+    VADisplay dpy,
+    VASurfaceID surface,
+    void *draw, /* the target Drawable */
+    short srcx,
+    short srcy,
+    unsigned short srcw,
+    unsigned short srch,
+    short destx,
+    short desty,
+    unsigned short destw,
+    unsigned short desth,
+    VARectangle *cliprects, /* client supplied clip list */
+    unsigned int number_cliprects, /* number of clip rects in the clip list */
+    unsigned int flags /* de-interlacing flags */
+);
+
+
 VAStatus vaPutSurface (
     VADisplay dpy,
     VASurfaceID surface,
@@ -250,9 +275,16 @@ VAStatus vaPutSurface (
 {
   VADriverContextP ctx;
 
+  if (fool_postp)
+      return VA_STATUS_SUCCESS;
+
   CHECK_DISPLAY(dpy);
   ctx = CTX(dpy);
-
+  
+  VA_TRACE(va_TracePutSurface, dpy, surface, (void *)draw, srcx, srcy, srcw, srch,
+           destx, desty, destw, desth,
+           cliprects, number_cliprects, flags );
+  
   return ctx->vtable.vaPutSurface( ctx, surface, (void *)draw, srcx, srcy, srcw, srch,
                                    destx, desty, destw, desth,
                                    cliprects, number_cliprects, flags );