/*
 INTEL CONFIDENTIAL
 Copyright 2009 Intel Corporation All Rights Reserved.
 The source code contained or described herein and all documents related to the source code ("Material") are owned by Intel Corporation or its suppliers or licensors. Title to the Material remains with Intel Corporation or its suppliers and licensors. The Material contains trade secrets and proprietary and confidential information of Intel or its suppliers and licensors. The Material is protected by worldwide copyright and trade secret laws and treaty provisions. No part of the Material may be used, copied, reproduced, modified, published, uploaded, posted, transmitted, distributed, or disclosed in any way without Intel’s prior express written permission.

 No license under any patent, copyright, trade secret or other intellectual property right is granted to or conferred upon you by disclosure or delivery of the Materials, either expressly, by implication, inducement, estoppel or otherwise. Any license under such intellectual property rights must be express and approved by Intel in writing.
 */
#include <glib.h>
#include <string.h>
#include <stdlib.h>

#include "mixvideolog.h"

#include "mixvideoformatenc_h264.h"
#include "mixvideoconfigparamsenc_h264.h"
#include <va/va_tpi.h>

#undef SHOW_SRC

#ifdef SHOW_SRC
Window win = 0;
#endif /* SHOW_SRC */


/* The parent class. The pointer will be saved
 * in this class's initialization. The pointer
 * can be used for chaining method call if needed.
 */
static MixVideoFormatEncClass *parent_class = NULL;

static void mix_videoformatenc_h264_finalize(GObject * obj);

/*
 * Please note that the type we pass to G_DEFINE_TYPE is MIX_TYPE_VIDEOFORMATENC
 */
G_DEFINE_TYPE (MixVideoFormatEnc_H264, mix_videoformatenc_h264, MIX_TYPE_VIDEOFORMATENC);

static void mix_videoformatenc_h264_init(MixVideoFormatEnc_H264 * self) {
    MixVideoFormatEnc *parent = MIX_VIDEOFORMATENC(self);

    /* member initialization */
    self->encoded_frames = 0;
    self->pic_skipped = FALSE;
    self->is_intra = TRUE;
    self->cur_frame = NULL;
    self->ref_frame = NULL;
    self->rec_frame = NULL;
#ifdef ANDROID
    self->last_mix_buffer = NULL;
#endif

    self->ci_shared_surfaces = NULL;
    self->surfaces= NULL;
    self->surface_num = 0;

    self->coded_buf_index = 0;
    parent->initialized = FALSE;
}

static void mix_videoformatenc_h264_class_init(
        MixVideoFormatEnc_H264Class * klass) {

    /* root class */
    GObjectClass *gobject_class = (GObjectClass *) klass;

    /* direct parent class */
    MixVideoFormatEncClass *video_formatenc_class = 
        MIX_VIDEOFORMATENC_CLASS(klass);

    /* parent class for later use */
    parent_class = g_type_class_peek_parent(klass);

    /* setup finializer */
    gobject_class->finalize = mix_videoformatenc_h264_finalize;

    /* setup vmethods with base implementation */
    video_formatenc_class->getcaps = mix_videofmtenc_h264_getcaps;
    video_formatenc_class->initialize = mix_videofmtenc_h264_initialize;
    video_formatenc_class->encode = mix_videofmtenc_h264_encode;
    video_formatenc_class->flush = mix_videofmtenc_h264_flush;
    video_formatenc_class->eos = mix_videofmtenc_h264_eos;
    video_formatenc_class->deinitialize = mix_videofmtenc_h264_deinitialize;
    video_formatenc_class->getmaxencodedbufsize = mix_videofmtenc_h264_get_max_encoded_buf_size;
    video_formatenc_class->set_dynamic_config = mix_videofmtenc_h264_set_dynamic_enc_config;
}

MixVideoFormatEnc_H264 *
mix_videoformatenc_h264_new(void) {
    MixVideoFormatEnc_H264 *ret =
        g_object_new(MIX_TYPE_VIDEOFORMATENC_H264, NULL);

    return ret;
}

void mix_videoformatenc_h264_finalize(GObject * obj) {
    /* clean up here. */

    /*MixVideoFormatEnc_H264 *mix = MIX_VIDEOFORMATENC_H264(obj); */
    GObjectClass *root_class = (GObjectClass *) parent_class;

    LOG_V( "\n");

    /* Chain up parent */
    if (root_class->finalize) {
        root_class->finalize(obj);
    }
}

MixVideoFormatEnc_H264 *
mix_videoformatenc_h264_ref(MixVideoFormatEnc_H264 * mix) {
    return (MixVideoFormatEnc_H264 *) g_object_ref(G_OBJECT(mix));
}

/*H.264 vmethods implementation */
MIX_RESULT mix_videofmtenc_h264_getcaps(MixVideoFormatEnc *mix, GString *msg) {

    LOG_V( "mix_videofmtenc_h264_getcaps\n");

    if (mix == NULL) {
        LOG_E( "mix == NULL\n");				
        return MIX_RESULT_NULL_PTR;	
    }
	

    if (parent_class->getcaps) {
        return parent_class->getcaps(mix, msg);
    }
    return MIX_RESULT_SUCCESS;
}

MIX_RESULT mix_videofmtenc_h264_initialize(MixVideoFormatEnc *mix, 
        MixVideoConfigParamsEnc * config_params_enc,
        MixFrameManager * frame_mgr,
        MixBufferPool * input_buf_pool,
        MixSurfacePool ** surface_pool,
        VADisplay va_display ) {

    MIX_RESULT ret = MIX_RESULT_SUCCESS;
    MixVideoFormatEnc *parent = NULL;
    MixVideoConfigParamsEncH264 * config_params_enc_h264;
    
    VAStatus va_status = VA_STATUS_SUCCESS;
    VASurfaceID * surfaces = NULL;
    
    gint va_max_num_profiles, va_max_num_entrypoints, va_max_num_attribs;
    gint va_num_profiles,  va_num_entrypoints;

    VAProfile *va_profiles = NULL;
    VAEntrypoint *va_entrypoints = NULL;
    VAConfigAttrib va_attrib[2];	
    guint index;		
	

    /*frame_mgr and input_buf_pool is reservered for future use*/
    
    if (mix == NULL || config_params_enc == NULL || va_display == NULL) {
        LOG_E( 
                "mix == NULL || config_params_enc == NULL || va_display == NULL\n");			
        return MIX_RESULT_NULL_PTR;
    }

    LOG_V( "begin\n");

    
    /* Chainup parent method. */
    if (parent_class->initialize) {
        ret = parent_class->initialize(mix, config_params_enc,
                frame_mgr, input_buf_pool, surface_pool, 
                va_display);
    }
    
    if (ret != MIX_RESULT_SUCCESS)
    {
        return ret;
    }
    
    if (!MIX_IS_VIDEOFORMATENC_H264(mix))
        return MIX_RESULT_INVALID_PARAM;

    
    parent = MIX_VIDEOFORMATENC(&(mix->parent));
    MixVideoFormatEnc_H264 *self = MIX_VIDEOFORMATENC_H264(mix);
    
    if (MIX_IS_VIDEOCONFIGPARAMSENC_H264 (config_params_enc)) {
        config_params_enc_h264 = 
            MIX_VIDEOCONFIGPARAMSENC_H264 (config_params_enc);
    } else {
        LOG_V( 
                "mix_videofmtenc_h264_initialize:  no h264 config params found\n");
        return MIX_RESULT_FAIL;
    }
    
    g_mutex_lock(parent->objectlock);        
    
    LOG_V( 
            "Start to get properities from h.264 params\n");
    
    /* get properties from H264 params Object, which is special to H264 format*/
    ret = mix_videoconfigparamsenc_h264_get_bus (config_params_enc_h264, 
            &self->basic_unit_size);
    
    if (ret != MIX_RESULT_SUCCESS) {
        LOG_E( 
                "Failed to mix_videoconfigparamsenc_h264_get_bus\n");               
        goto cleanup;
    }		
    
    
    ret = mix_videoconfigparamsenc_h264_get_dlk (config_params_enc_h264,
            &self->disable_deblocking_filter_idc);
    
    if (ret != MIX_RESULT_SUCCESS) {
        LOG_E( 
                "Failed to mix_videoconfigparamsenc_h264_get_dlk\n");            
        goto cleanup;
    }	
    
    
    ret = mix_videoconfigparamsenc_h264_get_slice_num (config_params_enc_h264,
            &self->slice_num);
    
    if (ret != MIX_RESULT_SUCCESS) {
        LOG_E( 
                "Failed to mix_videoconfigparamsenc_h264_get_slice_num\n");                 
        goto cleanup;
    }		
    
    ret = mix_videoconfigparamsenc_h264_get_delimiter_type (config_params_enc_h264,
            &self->delimiter_type);
    
    if (ret != MIX_RESULT_SUCCESS) {
        LOG_E ( 
                "Failed to mix_videoconfigparamsenc_h264_get_delimiter_type\n");                 
        goto cleanup;
    }			

    ret = mix_videoconfigparamsenc_h264_get_IDR_interval(config_params_enc_h264,
            &self->idr_interval);
    
    if (ret != MIX_RESULT_SUCCESS) {
        LOG_E ( 
                "Failed to mix_videoconfigparamsenc_h264_get_IDR_interval\n");                 
        goto cleanup;
    }		
	
    LOG_V( 
            "======H264 Encode Object properities======:\n");
    
    LOG_I( "self->basic_unit_size = %d\n", 
            self->basic_unit_size);		
    LOG_I( "self->disable_deblocking_filter_idc = %d\n", 
            self->disable_deblocking_filter_idc);			
    LOG_I( "self->slice_num = %d\n", 
            self->slice_num);			
    LOG_I ("self->delimiter_type = %d\n", 
            self->delimiter_type);		
    LOG_I ("self->idr_interval = %d\n", 
            self->idr_interval);		
    
    LOG_V( 
            "Get properities from params done\n");

    parent->va_display = va_display;	
    
    LOG_V( "Get Display\n");
    LOG_I( "Display = 0x%08x\n", 
            (guint)va_display);			
	
    
#if 0
    /* query the vender information, can ignore*/
    va_vendor = vaQueryVendorString (va_display);
    LOG_I( "Vendor = %s\n", 
            va_vendor);			
#endif		
        
    /*get the max number for profiles/entrypoints/attribs*/
    va_max_num_profiles = vaMaxNumProfiles(va_display);
    LOG_I( "va_max_num_profiles = %d\n", 
            va_max_num_profiles);		
    
    va_max_num_entrypoints = vaMaxNumEntrypoints(va_display);
    LOG_I( "va_max_num_entrypoints = %d\n", 
            va_max_num_entrypoints);	
    
    va_max_num_attribs = vaMaxNumConfigAttributes(va_display);
    LOG_I( "va_max_num_attribs = %d\n", 
            va_max_num_attribs);		        
    
    va_profiles = g_malloc(sizeof(VAProfile)*va_max_num_profiles);
    va_entrypoints = g_malloc(sizeof(VAEntrypoint)*va_max_num_entrypoints);	
    
    if (va_profiles == NULL || va_entrypoints ==NULL) 
    {
        LOG_E( 
                "!va_profiles || !va_entrypoints\n");	
        ret = MIX_RESULT_NO_MEMORY;
        goto cleanup;			
    }
    
    LOG_I( 
            "va_profiles = 0x%08x\n", (guint)va_profiles);		
    
    LOG_V( "vaQueryConfigProfiles\n");
    
    
    va_status = vaQueryConfigProfiles (va_display, va_profiles, &va_num_profiles);
    
    if (va_status != VA_STATUS_SUCCESS)	 
    {
        LOG_E( 
                "Failed to call vaQueryConfigProfiles\n");	
        
        ret = MIX_RESULT_FAIL;
        goto cleanup;					
    }
    
    LOG_V( "vaQueryConfigProfiles Done\n");
    
    
    /*check whether profile is supported*/
    for(index= 0; index < va_num_profiles; index++) {
        if(parent->va_profile == va_profiles[index])
            break;
    }
    
    if(index == va_num_profiles) 
    {
        LOG_E( "Profile not supported\n");				
        ret = MIX_RESULT_FAIL;
        goto cleanup;	
    }
    
    LOG_V( "vaQueryConfigEntrypoints\n");
    
    
    /*Check entry point*/
    va_status = vaQueryConfigEntrypoints(va_display, 
            parent->va_profile, 
            va_entrypoints, &va_num_entrypoints);
    
    if (va_status != VA_STATUS_SUCCESS)	 
    {
        LOG_E( 
                "Failed to call vaQueryConfigEntrypoints\n");	
        ret = MIX_RESULT_FAIL;
        goto cleanup;	
    }
    
    for (index = 0; index < va_num_entrypoints; index ++) {
        if (va_entrypoints[index] == VAEntrypointEncSlice) {
            break;
        }
    }
    
    if (index == va_num_entrypoints) {
        LOG_E( "Entrypoint not found\n");			
        ret = MIX_RESULT_FAIL;
        goto cleanup;	
    }	
    
    va_attrib[0].type = VAConfigAttribRTFormat;
    va_attrib[1].type = VAConfigAttribRateControl;
    
    LOG_V( "vaGetConfigAttributes\n");
    
    va_status = vaGetConfigAttributes(va_display, parent->va_profile, 
            parent->va_entrypoint,
            &va_attrib[0], 2);		
    
    if (va_status != VA_STATUS_SUCCESS)	 
    {
        LOG_E( 
                "Failed to call vaGetConfigAttributes\n");	
        ret = MIX_RESULT_FAIL;
        goto cleanup;	
    }
    
    if ((va_attrib[0].value & parent->va_format) == 0) {
        LOG_E( "Matched format not found\n");	
        ret = MIX_RESULT_FAIL;
        goto cleanup;	
    }	  
    
    
    if ((va_attrib[1].value & parent->va_rcmode) == 0) {
        LOG_E( "RC mode not found\n");	
        ret = MIX_RESULT_FAIL;
        goto cleanup;	
    }
    
    va_attrib[0].value = parent->va_format; //VA_RT_FORMAT_YUV420;
    va_attrib[1].value = parent->va_rcmode; 
    
    LOG_V( "======VA Configuration======\n");
    
    LOG_I( "profile = %d\n", 
            parent->va_profile);	
    LOG_I( "va_entrypoint = %d\n", 
            parent->va_entrypoint);	
    LOG_I( "va_attrib[0].type = %d\n", 
            va_attrib[0].type);			
    LOG_I( "va_attrib[1].type = %d\n", 
            va_attrib[1].type);				
    LOG_I( "va_attrib[0].value (Format) = %d\n", 
            va_attrib[0].value);			
    LOG_I( "va_attrib[1].value (RC mode) = %d\n", 
            va_attrib[1].value);				
    
    LOG_V( "vaCreateConfig\n");
    
    va_status = vaCreateConfig(va_display, parent->va_profile, 
            parent->va_entrypoint, 
            &va_attrib[0], 2, &(parent->va_config));
    
    if (va_status != VA_STATUS_SUCCESS)	 
    {
        LOG_E( "Failed vaCreateConfig\n");				
        ret = MIX_RESULT_FAIL;
        goto cleanup;	
    }
    
    /*TODO: compute the surface number*/
    int numSurfaces;
    
    if (parent->share_buf_mode) {
        numSurfaces = 2;
    }
    else {
        numSurfaces = 8;
        parent->ci_frame_num = 0;			
    }
    
    self->surface_num = numSurfaces + parent->ci_frame_num;
    
    surfaces = g_malloc(sizeof(VASurfaceID)*numSurfaces);
    
    if (surfaces == NULL)
    {
        LOG_E( 
                "Failed allocate surface\n");	
        ret = MIX_RESULT_NO_MEMORY;
        goto cleanup;				
    }
    
    LOG_V( "vaCreateSurfaces\n");
    
    va_status = vaCreateSurfaces(va_display, parent->picture_width, 
            parent->picture_height, parent->va_format,
            numSurfaces, surfaces);
    
    if (va_status != VA_STATUS_SUCCESS)	 
    {
        LOG_E( 
                "Failed vaCreateSurfaces\n");	
        ret = MIX_RESULT_FAIL;
        goto cleanup;	
    }
    
    if (parent->share_buf_mode) {
        
        LOG_V( 
                "We are in share buffer mode!\n");	
        self->ci_shared_surfaces = 
            g_malloc(sizeof(VASurfaceID) * parent->ci_frame_num);
        
        if (self->ci_shared_surfaces == NULL)
        {
            LOG_E( 
                    "Failed allocate shared surface\n");	
            
            ret = MIX_RESULT_NO_MEMORY;
            goto cleanup;					
        }
        
        guint index;
        for(index = 0; index < parent->ci_frame_num; index++) {
            
            LOG_I( "ci_frame_id = %lu\n", 
                    parent->ci_frame_id[index]);	
            
            LOG_V( 
                    "vaCreateSurfaceFromCIFrame\n");		
            
            va_status = vaCreateSurfaceFromCIFrame(va_display, 
                    (gulong) (parent->ci_frame_id[index]), 
                    &self->ci_shared_surfaces[index]);
            if (va_status != VA_STATUS_SUCCESS)	 
            {
                LOG_E( 
                        "Failed to vaCreateSurfaceFromCIFrame\n");				   
                ret = MIX_RESULT_FAIL;
                goto cleanup;	
            }		
        }
        
        LOG_V( 
                "vaCreateSurfaceFromCIFrame Done\n");
        
    }// if (parent->share_buf_mode)
    
    self->surfaces = g_malloc(sizeof(VASurfaceID) * self->surface_num);
    
    if (self->surfaces == NULL)
    {
        LOG_E( 
                "Failed allocate private surface\n");	
        ret = MIX_RESULT_NO_MEMORY;
        goto cleanup;				
    }		
    
    if (parent->share_buf_mode) {  
        /*shared surfaces should be put in pool first, 
          because we will get it accoring to CI index*/
        for(index = 0; index < parent->ci_frame_num; index++)
            self->surfaces[index] = self->ci_shared_surfaces[index];
    }
    
    for(index = 0; index < numSurfaces; index++) {
        self->surfaces[index + parent->ci_frame_num] = surfaces[index];	
    }
    
    LOG_V( "assign surface Done\n");	
    LOG_I( "Created %d libva surfaces\n", 
            numSurfaces + parent->ci_frame_num);		
        
#if 0  //current put this in gst
    images = g_malloc(sizeof(VAImage)*numSurfaces);	
    if (images == NULL)
    {
        g_mutex_unlock(parent->objectlock);            
        return MIX_RESULT_FAIL;
    }		
        
    for (index = 0; index < numSurfaces; index++) {   
        //Derive an VAImage from an existing surface. 
        //The image buffer can then be mapped/unmapped for CPU access
        va_status = vaDeriveImage(va_display, surfaces[index],
                &images[index]);
    }
#endif		 
    
    LOG_V( "mix_surfacepool_new\n");	
    
    parent->surfacepool = mix_surfacepool_new();
    if (surface_pool)
        *surface_pool = parent->surfacepool;  
    //which is useful to check before encode

    if (parent->surfacepool == NULL)
    {
        LOG_E( 
                "Failed to mix_surfacepool_new\n");
        ret = MIX_RESULT_FAIL;
        goto cleanup;	
    }
    
    LOG_V( 
            "mix_surfacepool_initialize\n");			
    
    ret = mix_surfacepool_initialize(parent->surfacepool,
            self->surfaces, parent->ci_frame_num + numSurfaces, va_display);
    
    switch (ret)
    {
        case MIX_RESULT_SUCCESS:
            break;
        case MIX_RESULT_ALREADY_INIT:
            LOG_E( "Error init failure\n");				
            ret = MIX_RESULT_ALREADY_INIT;
            goto cleanup;	         
        default:
            break;
    }
    
    
    //Initialize and save the VA context ID
    LOG_V( "vaCreateContext\n");		       
    
    va_status = vaCreateContext(va_display, parent->va_config,
            parent->picture_width, parent->picture_height,
            0, self->surfaces, parent->ci_frame_num + numSurfaces,
            &(parent->va_context));
    
    LOG_I( 
            "Created libva context width %d, height %d\n", 
            parent->picture_width, parent->picture_height);
    
    if (va_status != VA_STATUS_SUCCESS)	 
    {
        LOG_E( 
                "Failed to vaCreateContext\n");	
        LOG_I( "va_status = %d\n", 
                (guint)va_status);			
        ret = MIX_RESULT_FAIL;
        goto cleanup;	
    }
    
    guint max_size = 0;
    ret = mix_videofmtenc_h264_get_max_encoded_buf_size (parent, &max_size);
    if (ret != MIX_RESULT_SUCCESS)
    {
        LOG_E( 
                "Failed to mix_videofmtenc_h264_get_max_encoded_buf_size\n");	
        goto cleanup;	
        
    }
    
    /*Create coded buffer for output*/
    va_status = vaCreateBuffer (va_display, parent->va_context,
            VAEncCodedBufferType,
            self->coded_buf_size,  //
            1, NULL,
            &(self->coded_buf[0]));
    
    if (va_status != VA_STATUS_SUCCESS)	 
    {
        LOG_E( 
                "Failed to vaCreateBuffer: VAEncCodedBufferType\n");	
        ret = MIX_RESULT_FAIL;
        goto cleanup;	
    }
    
    /*Create coded buffer for output*/
    va_status = vaCreateBuffer (va_display, parent->va_context,
            VAEncCodedBufferType,
            self->coded_buf_size,  //
            1, NULL,
            &(self->coded_buf[1]));
    
    if (va_status != VA_STATUS_SUCCESS)	 
    {
        LOG_E( 
                "Failed to vaCreateBuffer: VAEncCodedBufferType\n");	
        ret = MIX_RESULT_FAIL;
        goto cleanup;	
    }
    
#ifdef SHOW_SRC
    Display * display = XOpenDisplay (NULL);
    LOG_I( "display = 0x%08x\n", 
            (guint) display);	        
    win = XCreateSimpleWindow(display, RootWindow(display, 0), 0, 0,
            parent->picture_width,  parent->picture_height, 0, 0,
            WhitePixel(display, 0));
    XMapWindow(display, win);
    XSelectInput(display, win, KeyPressMask | StructureNotifyMask);
    
    XSync(display, False);
    LOG_I( "va_display = 0x%08x\n", 
            (guint) va_display);	            
    
#endif /* SHOW_SRC */		
    
cleanup:
    
    
    if (ret == MIX_RESULT_SUCCESS) {
        parent->initialized = TRUE;		
    }
    
    /*free profiles and entrypoints*/
    if (va_profiles)	
        g_free(va_profiles);
    
    if (va_entrypoints)
        g_free (va_entrypoints);	
    
    if (surfaces) 
        g_free (surfaces);
    
    g_mutex_unlock(parent->objectlock);              
    
    LOG_V( "end\n");		
    
    return ret;
}

MIX_RESULT mix_videofmtenc_h264_encode(MixVideoFormatEnc *mix, MixBuffer * bufin[],
        gint bufincnt, MixIOVec * iovout[], gint iovoutcnt,
        MixVideoEncodeParams * encode_params) {
    
    MIX_RESULT ret = MIX_RESULT_SUCCESS;
    MixVideoFormatEnc *parent = NULL;
    
    LOG_V( "Begin\n");		
    
    /*currenly only support one input and output buffer*/

    if (bufincnt != 1 || iovoutcnt != 1) {
        LOG_E( 
                "buffer count not equel to 1\n");			
        LOG_E( 
                "maybe some exception occurs\n");				
    }
   
    if (mix == NULL ||bufin[0] == NULL ||  iovout[0] == NULL) {
        LOG_E( 
                "!mix || !bufin[0] ||!iovout[0]\n");				
        return MIX_RESULT_NULL_PTR;
    }
    
#if 0
    if (parent_class->encode) {
        return parent_class->encode(mix, bufin, bufincnt, iovout,
                iovoutcnt, encode_params);
    }
#endif
    
    if (!MIX_IS_VIDEOFORMATENC_H264(mix))
        return MIX_RESULT_INVALID_PARAM;      
	
    parent = MIX_VIDEOFORMATENC(&(mix->parent));
    MixVideoFormatEnc_H264 *self = MIX_VIDEOFORMATENC_H264 (mix);
    
    LOG_V( "Locking\n");		
    g_mutex_lock(parent->objectlock);
    

    //TODO: also we could move some encode Preparation work to here
    
    LOG_V( 
            "mix_videofmtenc_h264_process_encode\n");		        
    
    ret = mix_videofmtenc_h264_process_encode (self, 
            bufin[0], iovout[0]);
    if (ret != MIX_RESULT_SUCCESS)
    {
        LOG_E( 
                "Failed mix_videofmtenc_h264_process_encode\n");		
        goto cleanup;
    }
    
cleanup:		
    
    LOG_V( "UnLocking\n");		
    
    g_mutex_unlock(parent->objectlock);
    
    LOG_V( "end\n");		
    
    return ret;
}

MIX_RESULT mix_videofmtenc_h264_flush(MixVideoFormatEnc *mix) {
    
    //MIX_RESULT ret = MIX_RESULT_SUCCESS;
    
    LOG_V( "Begin\n");	

    if (mix == NULL) {
        LOG_E( "mix == NULL\n");				
        return MIX_RESULT_NULL_PTR;	
    }	
 
    
    /*not chain to parent flush func*/
#if 0
    if (parent_class->flush) {
        return parent_class->flush(mix, msg);
    }
#endif

    if (!MIX_IS_VIDEOFORMATENC_H264(mix))
        return MIX_RESULT_INVALID_PARAM;
    
    MixVideoFormatEnc_H264 *self = MIX_VIDEOFORMATENC_H264(mix);
    
    g_mutex_lock(mix->objectlock);

#if 0    
    /*unref the current source surface*/ 
    if (self->cur_frame != NULL)
    {
        mix_videoframe_unref (self->cur_frame);
        self->cur_frame = NULL;
    }
#endif		
    
    /*unref the reconstructed surface*/ 
    if (self->rec_frame != NULL)
    {
        mix_videoframe_unref (self->rec_frame);
        self->rec_frame = NULL;
    }

    /*unref the reference surface*/ 
    if (self->ref_frame != NULL)
    {
        mix_videoframe_unref (self->ref_frame);
        self->ref_frame = NULL;       
    }
#ifdef ANDROID
    if(self->last_mix_buffer) {
       mix_buffer_unref(self->last_mix_buffer);
       self->last_mix_buffer = NULL;
    }
#endif   
    /*reset the properities*/    
    self->encoded_frames = 0;
    self->pic_skipped = FALSE;
    self->is_intra = TRUE;
    
    g_mutex_unlock(mix->objectlock);
    
    LOG_V( "end\n");		
    
    return MIX_RESULT_SUCCESS;
}

MIX_RESULT mix_videofmtenc_h264_eos(MixVideoFormatEnc *mix) {
   
    LOG_V( "\n");		 

    if (mix == NULL) {
        LOG_E( "mix == NULL\n");				
        return MIX_RESULT_NULL_PTR;	
    }	

    if (parent_class->eos) {
        return parent_class->eos(mix);
    }
    return MIX_RESULT_SUCCESS;
}

MIX_RESULT mix_videofmtenc_h264_deinitialize(MixVideoFormatEnc *mix) {
    
    MixVideoFormatEnc *parent = NULL;
    VAStatus va_status;
    MIX_RESULT ret = MIX_RESULT_SUCCESS;	
	
	    
    LOG_V( "Begin\n");		

    if (mix == NULL) {
        LOG_E( "mix == NULL\n");				
        return MIX_RESULT_NULL_PTR;	
    }	

    if (!MIX_IS_VIDEOFORMATENC_H264(mix))
        return MIX_RESULT_INVALID_PARAM;      	

    if (parent_class->deinitialize) {
        ret =  parent_class->deinitialize(mix);
    }

    if (ret != MIX_RESULT_SUCCESS)
    {
        return ret;
    }		

    parent = MIX_VIDEOFORMATENC(&(mix->parent));
    MixVideoFormatEnc_H264 *self = MIX_VIDEOFORMATENC_H264(mix);	
   
    LOG_V( "Release frames\n");		

    g_mutex_lock(parent->objectlock);

#if 0
    /*unref the current source surface*/ 
    if (self->cur_frame != NULL)
    {
        mix_videoframe_unref (self->cur_frame);
        self->cur_frame = NULL;
    }
#endif	
    
    /*unref the reconstructed surface*/ 
    if (self->rec_frame != NULL)
    {
        mix_videoframe_unref (self->rec_frame);
        self->rec_frame = NULL;
    }

    /*unref the reference surface*/ 
    if (self->ref_frame != NULL)
    {
        mix_videoframe_unref (self->ref_frame);
        self->ref_frame = NULL;       
    }	

    LOG_V( "Release surfaces\n");			

    if (self->ci_shared_surfaces)
    {
        g_free (self->ci_shared_surfaces);
        self->ci_shared_surfaces = NULL;
    }

    if (self->surfaces)
    {
        g_free (self->surfaces);    
        self->surfaces = NULL;
    }		

    LOG_V( "vaDestroyContext\n");	
    
    va_status = vaDestroyContext (parent->va_display, parent->va_context);
    if (va_status != VA_STATUS_SUCCESS)	 
    {
        LOG_E( 
                "Failed vaDestroyContext\n");		
        ret =  MIX_RESULT_FAIL;
        goto cleanup;
    }		

    LOG_V( "vaDestroyConfig\n");	
    
    va_status = vaDestroyConfig (parent->va_display, parent->va_config);	
    if (va_status != VA_STATUS_SUCCESS)	 
    {
        LOG_E( 
                "Failed vaDestroyConfig\n");	
        ret =  MIX_RESULT_FAIL;
        goto cleanup;
    }			

cleanup:
    parent->initialized = FALSE;

    g_mutex_unlock(parent->objectlock);	

    LOG_V( "end\n");			
    
    return ret;
}

MIX_RESULT mix_videofmtenc_h264_send_seq_params (MixVideoFormatEnc_H264 *mix)
{
    
    VAStatus va_status;
    VAEncSequenceParameterBufferH264 h264_seq_param;
    
    MixVideoFormatEnc *parent = NULL;
    
    if (mix == NULL) {
        LOG_E("mix == NULL\n");					
        return MIX_RESULT_NULL_PTR;
    }
    
    LOG_V( "Begin\n\n");		
    
    if (!MIX_IS_VIDEOFORMATENC_H264(mix))
        return MIX_RESULT_INVALID_PARAM;

    parent = MIX_VIDEOFORMATENC(&(mix->parent));	
    
    /*set up the sequence params for HW*/
    h264_seq_param.level_idc = 30;  //TODO, hard code now
    h264_seq_param.intra_period = parent->intra_period;
    h264_seq_param.intra_idr_period = mix->idr_interval;
    h264_seq_param.picture_width_in_mbs = parent->picture_width / 16;
    h264_seq_param.picture_height_in_mbs = parent->picture_height/ 16;
    h264_seq_param.bits_per_second = parent->bitrate;
    h264_seq_param.frame_rate = 
        (unsigned int) (parent->frame_rate_num + parent->frame_rate_denom /2 ) / parent->frame_rate_denom;
    h264_seq_param.initial_qp = parent->initial_qp;
    h264_seq_param.min_qp = parent->min_qp;
    h264_seq_param.basic_unit_size = mix->basic_unit_size; //for rate control usage
    h264_seq_param.intra_period = parent->intra_period;
    //h264_seq_param.vui_flag = 248;
    //h264_seq_param.seq_parameter_set_id = 176;	 

    LOG_V( 
            "===h264 sequence params===\n");		
    
    LOG_I( "seq_parameter_set_id = %d\n", 
            (guint)h264_seq_param.seq_parameter_set_id);	
    LOG_I( "level_idc = %d\n", 
            (guint)h264_seq_param.level_idc);	
    LOG_I( "intra_period = %d\n", 
            h264_seq_param.intra_period);		
    LOG_I( "idr_interval = %d\n", 
            h264_seq_param.intra_idr_period);		
    LOG_I( "picture_width_in_mbs = %d\n", 
            h264_seq_param.picture_width_in_mbs);	 
    LOG_I( "picture_height_in_mbs = %d\n", 
            h264_seq_param.picture_height_in_mbs);		
    LOG_I( "bitrate = %d\n", 
            h264_seq_param.bits_per_second);	
    LOG_I( "frame_rate = %d\n", 
            h264_seq_param.frame_rate);	
    LOG_I( "initial_qp = %d\n", 
            h264_seq_param.initial_qp);		
    LOG_I( "min_qp = %d\n", 
            h264_seq_param.min_qp);	
    LOG_I( "basic_unit_size = %d\n", 
            h264_seq_param.basic_unit_size);			
    LOG_I( "vui_flag = %d\n\n", 
            h264_seq_param.vui_flag);		             
    
    va_status = vaCreateBuffer(parent->va_display, parent->va_context,
            VAEncSequenceParameterBufferType,
            sizeof(h264_seq_param),
            1, &h264_seq_param,
            &mix->seq_param_buf);
    if (va_status != VA_STATUS_SUCCESS)	 
    {
        LOG_E( 
                "Failed to vaCreateBuffer\n");				
        return MIX_RESULT_FAIL;
    }
    
    va_status = vaRenderPicture(parent->va_display, parent->va_context, 
            &mix->seq_param_buf, 1);
    if (va_status != VA_STATUS_SUCCESS)	 
    {
        LOG_E( 
                "Failed to vaRenderPicture\n");					
        return MIX_RESULT_FAIL;
    }	
    
    return MIX_RESULT_SUCCESS;
}

MIX_RESULT mix_videofmtenc_h264_send_picture_parameter (MixVideoFormatEnc_H264 *mix)
{
    VAStatus va_status;
    VAEncPictureParameterBufferH264 h264_pic_param;
    MixVideoFormatEnc *parent = NULL;
    
    if (mix == NULL) {
        LOG_E("mix == NULL\n");			
        return MIX_RESULT_NULL_PTR;
    }
    
    LOG_V( "Begin\n\n");		

    if (!MIX_IS_VIDEOFORMATENC_H264(mix))
        return MIX_RESULT_INVALID_PARAM;
        
    parent = MIX_VIDEOFORMATENC(&(mix->parent));
    
    /*set picture params for HW*/
    h264_pic_param.reference_picture = mix->ref_frame->frame_id;  
    h264_pic_param.reconstructed_picture = mix->rec_frame->frame_id;
    h264_pic_param.coded_buf = mix->coded_buf[mix->coded_buf_index];
    h264_pic_param.picture_width = parent->picture_width;
    h264_pic_param.picture_height = parent->picture_height;
    h264_pic_param.last_picture = 0;	
    
    
    LOG_V( 
            "======h264 picture params======\n");		
    LOG_I( "reference_picture = 0x%08x\n", 
            h264_pic_param.reference_picture);	
    LOG_I( "reconstructed_picture = 0x%08x\n", 
            h264_pic_param.reconstructed_picture);	
    LOG_I( "coded_buf_index = %d\n", 
            mix->coded_buf_index);	
    LOG_I( "coded_buf = 0x%08x\n", 
            h264_pic_param.coded_buf);
    LOG_I( "picture_width = %d\n", 
            h264_pic_param.picture_width);	
    LOG_I( "picture_height = %d\n\n", 
            h264_pic_param.picture_height);			
       
    va_status = vaCreateBuffer(parent->va_display, parent->va_context,
            VAEncPictureParameterBufferType,
            sizeof(h264_pic_param),
            1,&h264_pic_param,
            &mix->pic_param_buf);	
    
    if (va_status != VA_STATUS_SUCCESS)	 
    {
        LOG_E( 
                "Failed to vaCreateBuffer\n");												
        return MIX_RESULT_FAIL;
    }
    
    
    va_status = vaRenderPicture(parent->va_display, parent->va_context,
            &mix->pic_param_buf, 1);	
    
    if (va_status != VA_STATUS_SUCCESS)	 
    {
        LOG_E( 
                "Failed to vaRenderPicture\n");									
        return MIX_RESULT_FAIL;
    }				
    
    LOG_V( "end\n");		
    return MIX_RESULT_SUCCESS;  
    
}


MIX_RESULT mix_videofmtenc_h264_send_slice_parameter (MixVideoFormatEnc_H264 *mix)
{
    VAStatus va_status;
    
    guint slice_num;
    guint slice_height;
    guint slice_index;
    guint slice_height_in_mb;
    
    if (mix == NULL) {
        LOG_E("mix == NULL\n");					
        return MIX_RESULT_NULL_PTR;
    }
    
    LOG_V( "Begin\n\n");			
    
    
    MixVideoFormatEnc *parent = NULL;	
    
    if (!MIX_IS_VIDEOFORMATENC_H264(mix))
        return MIX_RESULT_INVALID_PARAM;
		
    parent = MIX_VIDEOFORMATENC(&(mix->parent));		
        
    slice_num = mix->slice_num;
    slice_height = parent->picture_height / slice_num;	
        
    slice_height += 15;
    slice_height &= (~15);

#if 1 		 
    va_status = vaCreateBuffer (parent->va_display, parent->va_context, 
            VAEncSliceParameterBufferType,
            sizeof(VAEncSliceParameterBuffer),
            slice_num, NULL,
            &mix->slice_param_buf);		
    
    if (va_status != VA_STATUS_SUCCESS)	 
    {
        LOG_E( 
                "Failed to vaCreateBuffer\n");				
        return MIX_RESULT_FAIL;
    }
     
    VAEncSliceParameterBuffer *slice_param, *current_slice;

    va_status = vaMapBuffer(parent->va_display,
            mix->slice_param_buf,
            (void **)&slice_param);	
    
    if (va_status != VA_STATUS_SUCCESS)	 
    {
        LOG_E( 
                "Failed to vaMapBuffer\n");				
        return MIX_RESULT_FAIL;
    }			
    
    current_slice = slice_param;

        
    for (slice_index = 0; slice_index < slice_num; slice_index++) {
        current_slice = slice_param + slice_index;
        slice_height_in_mb = 
            min (slice_height, parent->picture_height  
                    - slice_index * slice_height) / 16;
        
        // starting MB row number for this slice
        current_slice->start_row_number = slice_index * slice_height / 16;  
        // slice height measured in MB
        current_slice->slice_height = slice_height_in_mb;   
        current_slice->slice_flags.bits.is_intra = mix->is_intra;	
        current_slice->slice_flags.bits.disable_deblocking_filter_idc 
            = mix->disable_deblocking_filter_idc;
        
        LOG_V( 
                "======h264 slice params======\n");		
        
        LOG_I( "slice_index = %d\n",  		      
                (gint) slice_index);	 
        LOG_I( "start_row_number = %d\n", 
                (gint) current_slice->start_row_number);	
        LOG_I( "slice_height_in_mb = %d\n", 
                (gint) current_slice->slice_height);		
        LOG_I( "slice.is_intra = %d\n", 
                (gint) current_slice->slice_flags.bits.is_intra);		
        LOG_I( 
                "disable_deblocking_filter_idc = %d\n\n", 
                (gint) mix->disable_deblocking_filter_idc);			
        
    }
    
    va_status = vaUnmapBuffer(parent->va_display, mix->slice_param_buf);
    
    if (va_status != VA_STATUS_SUCCESS)	 
    {
        LOG_E( 
                "Failed to vaUnmapBuffer\n");					
        return MIX_RESULT_FAIL;
    }	
#endif		

#if 0
        VAEncSliceParameterBuffer slice_param;
        slice_index = 0;
        slice_height_in_mb = slice_height / 16;
        slice_param.start_row_number = 0;  
        slice_param.slice_height = slice_height / 16;   
        slice_param.slice_flags.bits.is_intra = mix->is_intra;	
        slice_param.slice_flags.bits.disable_deblocking_filter_idc
            = mix->disable_deblocking_filter_idc;

        va_status = vaCreateBuffer (parent->va_display, parent->va_context, 
                VAEncSliceParameterBufferType,
                sizeof(slice_param),
                slice_num, &slice_param,
                &mix->slice_param_buf);		
    
        if (va_status != VA_STATUS_SUCCESS)	 
        {
            LOG_E( 
                    "Failed to vaCreateBuffer\n");	
            return MIX_RESULT_FAIL;
        }			
#endif
        
    va_status = vaRenderPicture(parent->va_display, parent->va_context,
            &mix->slice_param_buf, 1);	
    
    if (va_status != VA_STATUS_SUCCESS)	 
    {
        LOG_E( 
                "Failed to vaRenderPicture\n");				
        return MIX_RESULT_FAIL;
    }	
        	
    
    LOG_V( "end\n");		
    
    return MIX_RESULT_SUCCESS;
}

MIX_RESULT mix_videofmtenc_h264_process_encode (MixVideoFormatEnc_H264 *mix,
        MixBuffer * bufin, MixIOVec * iovout)
{
    
    MIX_RESULT ret = MIX_RESULT_SUCCESS;
    VAStatus va_status = VA_STATUS_SUCCESS;
    VADisplay va_display = NULL;	
    VAContextID va_context;
    gulong surface = 0;
    guint16 width, height;
    
    MixVideoFrame *  tmp_frame;
    guint8 *buf;
    
    if ((mix == NULL) || (bufin == NULL) || (iovout == NULL)) {
        LOG_E( 
                "mix == NUL) || bufin == NULL || iovout == NULL\n");
        return MIX_RESULT_NULL_PTR;
    }    

    LOG_V( "Begin\n");		
    
    if (!MIX_IS_VIDEOFORMATENC_H264(mix))
        return MIX_RESULT_INVALID_PARAM;
        
    MixVideoFormatEnc *parent = MIX_VIDEOFORMATENC(&(mix->parent));
    
    va_display = parent->va_display;
    va_context = parent->va_context;
    width = parent->picture_width;
    height = parent->picture_height;		
    

    LOG_I( "encoded_frames = %d\n", 
            mix->encoded_frames);	
    LOG_I( "is_intra = %d\n", 
            mix->is_intra);	
    LOG_I( "ci_frame_id = 0x%08x\n", 
            (guint) parent->ci_frame_id);

    /* determine the picture type*/
    if ((mix->encoded_frames % parent->intra_period) == 0) {
        mix->is_intra = TRUE;
    } else {
        mix->is_intra = FALSE;
    }		

    LOG_I( "is_intra_picture = %d\n", 
            mix->is_intra);			
    
    LOG_V( 
            "Get Surface from the pool\n");		
    
    /*current we use one surface for source data, 
     * one for reference and one for reconstructed*/
    /*TODO, could be refine here*/

    if (!parent->share_buf_mode) {
        LOG_V( 
                "We are NOT in share buffer mode\n");		
        
        if (mix->ref_frame == NULL)
        {
            ret = mix_surfacepool_get(parent->surfacepool, &mix->ref_frame);
            if (ret != MIX_RESULT_SUCCESS)  //#ifdef SLEEP_SURFACE not used
            {
                LOG_E( 
                        "Failed to mix_surfacepool_get\n");	
                goto cleanup;
            }
        }
        
        if (mix->rec_frame == NULL)	
        {
            ret = mix_surfacepool_get(parent->surfacepool, &mix->rec_frame);
            if (ret != MIX_RESULT_SUCCESS)
            {
                LOG_E( 
                        "Failed to mix_surfacepool_get\n");					
                goto cleanup;
            }
        }

        if (parent->need_display) {
            mix->cur_frame = NULL;				
        }
        
        if (mix->cur_frame == NULL)
        {
            ret = mix_surfacepool_get(parent->surfacepool, &mix->cur_frame);
            if (ret != MIX_RESULT_SUCCESS)
            {
                LOG_E( 
                        "Failed to mix_surfacepool_get\n");					
                goto cleanup;
            }			
        }
        
        LOG_V( "Get Surface Done\n");		

        
        VAImage src_image;
        guint8 *pvbuf;
        guint8 *dst_y;
        guint8 *dst_uv;	
        int i,j;
        
        LOG_V( 
                "map source data to surface\n");	
        
        ret = mix_videoframe_get_frame_id(mix->cur_frame, &surface);
        if (ret != MIX_RESULT_SUCCESS)
        {
            LOG_E( 
                    "Failed to mix_videoframe_get_frame_id\n");				
                goto cleanup;
        }
        
        
        LOG_I( 
                "surface id = 0x%08x\n", (guint) surface);
        
        va_status = vaDeriveImage(va_display, surface, &src_image);	 
        //need to destroy
        
        if (va_status != VA_STATUS_SUCCESS)	 
        {
            LOG_E( 
                    "Failed to vaDeriveImage\n");	
            ret = MIX_RESULT_FAIL;
            goto cleanup;
        }
        
        VAImage *image = &src_image;
        
        LOG_V( "vaDeriveImage Done\n");			

        
        va_status = vaMapBuffer (va_display, image->buf, (void **)&pvbuf);
        if (va_status != VA_STATUS_SUCCESS)	 
        {
            LOG_E( "Failed to vaMapBuffer\n");
            ret = MIX_RESULT_FAIL;
            goto cleanup;
        }		
        
        LOG_V( 
                "vaImage information\n");	
        LOG_I( 
                "image->pitches[0] = %d\n", image->pitches[0]);
        LOG_I( 
                "image->pitches[1] = %d\n", image->pitches[1]);		
        LOG_I( 
                "image->offsets[0] = %d\n", image->offsets[0]);
        LOG_I( 
                "image->offsets[1] = %d\n", image->offsets[1]);	
        LOG_I( 
                "image->num_planes = %d\n", image->num_planes);			
        LOG_I( 
                "image->width = %d\n", image->width);			
        LOG_I( 
                "image->height = %d\n", image->height);			
        
        LOG_I( 
                "input buf size = %d\n", bufin->size);			
        
        guint8 *inbuf = bufin->data;

#ifndef ANDROID
#define USE_SRC_FMT_YUV420
#else
#define USE_SRC_FMT_NV21
#endif

#ifdef USE_SRC_FMT_YUV420
        /*need to convert YUV420 to NV12*/
        dst_y = pvbuf +image->offsets[0];
        
        for (i = 0; i < height; i ++) {
            memcpy (dst_y, inbuf + i * width, width);
            dst_y += image->pitches[0];
        }
        
        dst_uv = pvbuf + image->offsets[1];
        
        for (i = 0; i < height / 2; i ++) {
            for (j = 0; j < width; j+=2) {
                dst_uv [j] = inbuf [width * height + i * width / 2 + j / 2];
                dst_uv [j + 1] = 
                    inbuf [width * height * 5 / 4 + i * width / 2 + j / 2];
            }
            dst_uv += image->pitches[1];
        }
#else //USE_SRC_FMT_NV12 or USE_SRC_FMT_NV21
            int offset_uv = width * height;
            guint8 *inbuf_uv = inbuf + offset_uv;
            int height_uv = height / 2;
            int width_uv = width;

            dst_y = pvbuf + image->offsets[0];
            for (i = 0; i < height; i++) {
                memcpy (dst_y, inbuf + i * width, width);
                dst_y += image->pitches[0];
            }

#ifdef USE_SRC_FMT_NV12
            dst_uv = pvbuf + image->offsets[1];
            for (i = 0; i < height_uv; i++) {
                memcpy(dst_uv, inbuf_uv + i * width_uv, width_uv);
                dst_uv += image->pitches[1];
            }
#else //USE_SRC_FMT_NV21
            dst_uv = pvbuf + image->offsets[1];
            for (i = 0; i < height_uv; i ++) {
                for (j = 0; j < width_uv; j += 2) {
                    dst_uv[j] = inbuf_uv[j+1];  //u
                    dst_uv[j+1] = inbuf_uv[j];  //v
                }
                dst_uv += image->pitches[1];
                inbuf_uv += width_uv;
            }
#endif
#endif //USE_SRC_FMT_YUV420

        va_status = vaUnmapBuffer(va_display, image->buf);	
        if (va_status != VA_STATUS_SUCCESS)	 
        {
            LOG_E( 
                    "Failed to vaUnmapBuffer\n");	
            ret = MIX_RESULT_FAIL;				
            goto cleanup;
        }	
        
        va_status = vaDestroyImage(va_display, src_image.image_id);
        if (va_status != VA_STATUS_SUCCESS)	 
        {
            LOG_E( 
                    "Failed to vaDestroyImage\n");	
            ret = MIX_RESULT_FAIL;				
            goto cleanup;
        }	
        
        LOG_V( 
                "Map source data to surface done\n");	
        
    }
    
    else {//if (!parent->share_buf_mode)
               
        MixVideoFrame * frame = mix_videoframe_new();
        
        if (mix->ref_frame == NULL)
        {
            ret = mix_videoframe_set_ci_frame_idx (frame, mix->surface_num - 1);
            if (ret != MIX_RESULT_SUCCESS)
            {
                LOG_E( 
                        "mix_videoframe_set_ci_frame_idx failed\n");				
                goto cleanup;
            }				
            
            ret = mix_surfacepool_get_frame_with_ci_frameidx 
                (parent->surfacepool, &mix->ref_frame, frame);
            if (ret != MIX_RESULT_SUCCESS)
            {
                LOG_E( 
                        "get reference surface from pool failed\n");				
                goto cleanup;
            }
        }
        
        if (mix->rec_frame == NULL)	
        {
            ret = mix_videoframe_set_ci_frame_idx (frame, mix->surface_num - 2);    
            if (ret != MIX_RESULT_SUCCESS) 
            {
                LOG_E( 
                        "mix_videoframe_set_ci_frame_idx failed\n");				
                goto cleanup;
            }					
            
            ret = mix_surfacepool_get_frame_with_ci_frameidx
                (parent->surfacepool, &mix->rec_frame, frame);

            if (ret != MIX_RESULT_SUCCESS)
            {
                LOG_E( 
                        "get recontructed surface from pool failed\n");				
                goto cleanup;
            }
        }

        //mix_videoframe_unref (mix->cur_frame);

        if (parent->need_display) {
            mix->cur_frame = NULL;		
        }
        
        if (mix->cur_frame == NULL)
        {
            guint ci_idx;
#ifndef ANDROID
            memcpy (&ci_idx, bufin->data, bufin->size);
#else
            memcpy (&ci_idx, bufin->data, sizeof(unsigned int));
#endif

            LOG_I( 
                    "surface_num = %d\n", mix->surface_num);			 
            LOG_I( 
                    "ci_frame_idx = %d\n", ci_idx);					
            
            if (ci_idx > mix->surface_num - 2) {
                LOG_E( 
                        "the CI frame idx is too bigger than CI frame number\n");		
                ret = MIX_RESULT_FAIL;					
                goto cleanup;

            }
            
            
            ret = mix_videoframe_set_ci_frame_idx (frame, ci_idx);        
            if (ret != MIX_RESULT_SUCCESS) 
            {
                LOG_E( 
                        "mix_videoframe_set_ci_frame_idx failed\n");				
                goto cleanup;
            }	

            
            ret = mix_surfacepool_get_frame_with_ci_frameidx
                (parent->surfacepool, &mix->cur_frame, frame);

            if (ret != MIX_RESULT_SUCCESS)
            {
                LOG_E( 
                        "get current working surface from pool failed\n");
                goto cleanup;

            }			
        }
        
        ret = mix_videoframe_get_frame_id(mix->cur_frame, &surface);
        
    }

    /**
     * Start encoding process
     **/
    
    LOG_V( "vaBeginPicture\n");	
    LOG_I( "va_context = 0x%08x\n",(guint)va_context);
    LOG_I( "surface = 0x%08x\n",(guint)surface);	        
    LOG_I( "va_display = 0x%08x\n",(guint)va_display);


    va_status = vaBeginPicture(va_display, va_context, surface);
    if (va_status != VA_STATUS_SUCCESS)	 
    {
        LOG_E( "Failed vaBeginPicture\n");
        ret = MIX_RESULT_FAIL;	 
        goto cleanup;
    }	
    
    ret = mix_videofmtenc_h264_send_encode_command (mix);
    if (ret != MIX_RESULT_SUCCESS)
    {
        LOG_E ( 
                "Failed mix_videofmtenc_h264_send_encode_command\n");	
        goto cleanup;
    }			
    
    
    if ((parent->va_rcmode == VA_RC_NONE) || mix->encoded_frames == 0) {
        
        va_status = vaEndPicture (va_display, va_context);
        if (va_status != VA_STATUS_SUCCESS)	 
        {
            LOG_E( "Failed vaEndPicture\n");	
            ret = MIX_RESULT_FAIL;				
            goto cleanup;
        }
    }

    LOG_V( "vaEndPicture\n");		
    
    if (mix->encoded_frames == 0) {
        mix->encoded_frames ++;
        mix->last_coded_buf = mix->coded_buf[mix->coded_buf_index];
        mix->coded_buf_index ++; 
        mix->coded_buf_index %=2;
        
        mix->last_frame = mix->cur_frame;
        
        
        /* determine the picture type*/
        if ((mix->encoded_frames % parent->intra_period) == 0) {
            mix->is_intra = TRUE;
        } else {
            mix->is_intra = FALSE;
        }						
        
        tmp_frame = mix->rec_frame;
        mix->rec_frame= mix->ref_frame;
        mix->ref_frame = tmp_frame;			
        
        
    }
    
    
    LOG_V( "vaSyncSurface\n");	
    
    va_status = vaSyncSurface(va_display, mix->last_frame->frame_id);
    if (va_status != VA_STATUS_SUCCESS)	 
    {
        LOG_E( "Failed vaSyncSurface\n");		

        //return MIX_RESULT_FAIL;
    }				      

    LOG_V( 
            "Start to get encoded data\n");		

    /*get encoded data from the VA buffer*/
    va_status = vaMapBuffer (va_display, mix->last_coded_buf, (void **)&buf);
    if (va_status != VA_STATUS_SUCCESS)	 
    {
        LOG_E( "Failed vaMapBuffer\n");	
        ret = MIX_RESULT_FAIL;			
        goto cleanup;
	 }				

    
    VACodedBufferSegment *coded_seg = NULL;
    int num_seg = 0;
    guint total_size = 0;
    guint size = 0;	
    
    coded_seg = (VACodedBufferSegment *)buf;
    num_seg = 1;
    
    while (1) {
        total_size += coded_seg->size;
        
        if (coded_seg->next == NULL)	
            break;		
        
        coded_seg = coded_seg->next;
        num_seg ++;
    }

    LOG_I ("segment number = %d\n", num_seg);

#if 0
    // first 4 bytes is the size of the buffer
    memcpy (&(iovout->data_size), (void*)buf, 4); 
    //size = (guint*) buf;

    guint size = iovout->data_size + 100;
#endif	

    iovout->data_size = total_size;
    size = total_size + 100;
    
    iovout->buffer_size = size;

    //We will support two buffer mode, one is application allocates the buffer and passes to encode, 
    //the other is encode allocate memory

    
    if (iovout->data == NULL) { //means  app doesn't allocate the buffer, so _encode will allocate it.
        iovout->data = g_malloc (size);  // In case we have lots of 0x000001 start code, and we replace them with 4 bytes length prefixed
        if (iovout->data == NULL) {
            LOG_E( "iovout->data == NULL\n");					
            ret = MIX_RESULT_NO_MEMORY;
            goto cleanup;				
        }
    }
    
    coded_seg = (VACodedBufferSegment *)buf;
    total_size = 0;
    
    if (mix->delimiter_type == MIX_DELIMITER_ANNEXB) {
        
        while (1) {
            
            memcpy (iovout->data + total_size, coded_seg->buf, coded_seg->size);
            total_size += coded_seg->size;	
            
            if (coded_seg->next == NULL)	
                break;		            
            
            coded_seg = coded_seg->next;
        }		

        //memcpy (iovout->data, buf + 16, iovout->data_size); //parload is started from 17th byte
        //size = iovout->data_size;       
        
    } else {
        
        guint pos = 0;
        guint zero_byte_count = 0;	
        guint prefix_length = 0;				
        guint8 nal_unit_type = 0; 
        //guint8 * payload = buf + 16;
        guint8 * payload = coded_seg->buf;        
        
        while ((payload[pos++] == 0x00)) {                
            zero_byte_count ++;
            if (pos >= coded_seg->size)  //to make sure the buffer to be accessed is valid
                break;
        }			 

        nal_unit_type = (guint8)(payload[pos] & 0x1f);
        prefix_length = zero_byte_count + 1;		 

        LOG_I ("nal_unit_type = %d\n", nal_unit_type);		 
        LOG_I ("zero_byte_count = %d\n", zero_byte_count);	

        size = iovout->data_size;		

        if ((payload [pos - 1] & 0x01) && mix->slice_num == 1 && nal_unit_type == 1 && num_seg == 1) {
            iovout->data[0] = ((size - prefix_length) >> 24) & 0xff;
            iovout->data[1] = ((size - prefix_length) >> 16) & 0xff;
            iovout->data[2] = ((size - prefix_length) >> 8)  & 0xff;
            iovout->data[3] = (size - prefix_length)   & 0xff;      
            // use 4 bytes to indicate the NALU length
            //memcpy (iovout->data + 4, buf + 16 + prefix_length, size - prefix_length);				
            memcpy (iovout->data + 4, coded_seg->buf + prefix_length, size - prefix_length);				            
            LOG_V ("We only have one start code, copy directly\n");	
        } 
        else { 

            if (num_seg == 1) {	   
                ret = mix_videofmtenc_h264_AnnexB_to_length_prefixed (coded_seg->buf, coded_seg->size, iovout->data, &size);
                if (ret != MIX_RESULT_SUCCESS)
                {
                    LOG_E ( 
                            "Failed mix_videofmtenc_h264_AnnexB_to_length_prefixed\n");	
                    goto cleanup;
                }
            
            } else {
                
                guint8 * tem_buf = NULL;
                tem_buf = g_malloc (size);
                if (tem_buf == NULL) {
                    LOG_E( "tem_buf == NULL\n");					
                    ret = MIX_RESULT_NO_MEMORY;
                    goto cleanup;				
                }			
                
                while (1) {
                    
                    memcpy (tem_buf + total_size, coded_seg->buf, coded_seg->size);
                    total_size += coded_seg->size;	
                    
                    if (coded_seg->next == NULL)	
                        break;		
                    
                    coded_seg = coded_seg->next;
                }	
                
                ret = mix_videofmtenc_h264_AnnexB_to_length_prefixed (tem_buf, iovout->data_size, iovout->data, &size);
                if (ret != MIX_RESULT_SUCCESS)
                {
                    LOG_E ( 
                            "Failed mix_videofmtenc_h264_AnnexB_to_length_prefixed\n");	
                    goto cleanup;
                }		

                g_free (tem_buf);
            }
        }
    }
    
    LOG_I( 
            "out size is = %d\n", iovout->data_size);	

    va_status = vaUnmapBuffer (va_display, mix->last_coded_buf);
    if (va_status != VA_STATUS_SUCCESS)	 
    {
        LOG_E( "Failed vaUnmapBuffer\n");
        ret = MIX_RESULT_FAIL;			
        goto cleanup;
    }		

    LOG_V( "get encoded data done\n");	

    if (!((parent->va_rcmode == VA_RC_NONE) || mix->encoded_frames == 1)) {
        
        va_status = vaEndPicture (va_display, va_context);
        if (va_status != VA_STATUS_SUCCESS)	 
        {
            LOG_E( "Failed vaEndPicture\n");	
            ret = MIX_RESULT_FAIL;				
            goto cleanup;
        }
    }		
            
    if (mix->encoded_frames == 1) {
        va_status = vaBeginPicture(va_display, va_context, surface);
        if (va_status != VA_STATUS_SUCCESS)	 
        {
            LOG_E( "Failed vaBeginPicture\n");
            ret = MIX_RESULT_FAIL;
            goto cleanup;				
        }				
        
        ret = mix_videofmtenc_h264_send_encode_command (mix);
        if (ret != MIX_RESULT_SUCCESS)
        {
            LOG_E ( 
                    "Failed mix_videofmtenc_h264_send_encode_command\n");	
            goto cleanup;
        }				
        
        va_status = vaEndPicture (va_display, va_context);
        if (va_status != VA_STATUS_SUCCESS)	 
        {
            LOG_E( "Failed vaEndPicture\n");		
            ret = MIX_RESULT_FAIL;
            goto cleanup;				
        }					
        
    }	
   
    VASurfaceStatus status;
    
    /*query the status of current surface*/
    va_status = vaQuerySurfaceStatus(va_display, surface,  &status);
    if (va_status != VA_STATUS_SUCCESS)	 
    {
        LOG_E( 
                "Failed vaQuerySurfaceStatus\n");				
        ret = MIX_RESULT_FAIL;
        goto cleanup;			
    }				
    mix->pic_skipped = status & VASurfaceSkipped;		

    if (parent->need_display) {
		ret = mix_videoframe_set_sync_flag(mix->cur_frame, TRUE);
        if (ret != MIX_RESULT_SUCCESS) {
            LOG_E("Failed to set sync_flag\n");
            goto cleanup;
        }
        
        ret = mix_framemanager_enqueue(parent->framemgr, mix->cur_frame);	
        if (ret != MIX_RESULT_SUCCESS)
        {            
            LOG_E( 
                    "Failed mix_framemanager_enqueue\n");	
            goto cleanup;
        }		
    }

    
    /*update the reference surface and reconstructed surface */
    if (!mix->pic_skipped) {
        tmp_frame = mix->rec_frame;
        mix->rec_frame= mix->ref_frame;
        mix->ref_frame = tmp_frame;
    } 			
            
#if 0
    if (mix->ref_frame != NULL)
        mix_videoframe_unref (mix->ref_frame);
    mix->ref_frame = mix->rec_frame;
    
    mix_videoframe_unref (mix->cur_frame);
#endif		
    
    mix->encoded_frames ++;
    mix->last_coded_buf = mix->coded_buf[mix->coded_buf_index];
    mix->coded_buf_index ++; 
    mix->coded_buf_index %=2;
    mix->last_frame = mix->cur_frame;

#ifdef ANDROID
    if(mix->last_mix_buffer) {       
       LOG_V("calls to mix_buffer_unref \n");
       LOG_V("refcount = %d\n", MIX_PARAMS(mix->last_mix_buffer)->refcount);
       mix_buffer_unref(mix->last_mix_buffer);
    }

    LOG_V("ref the current bufin\n");
    mix->last_mix_buffer = mix_buffer_ref(bufin);
#endif

    if (!(parent->need_display)) {
        mix_videoframe_unref (mix->cur_frame);
        mix->cur_frame = NULL;
    }

cleanup:

    if (ret != MIX_RESULT_SUCCESS) {
        if (iovout->data) {
            g_free (iovout->data);
            iovout->data = NULL;
        }
    }
        
    LOG_V( "end\n");		
 
    return ret;
}

MIX_RESULT mix_videofmtenc_h264_get_max_encoded_buf_size (
        MixVideoFormatEnc *mix, guint *max_size)
{

    MixVideoFormatEnc *parent = NULL;
   
    if (mix == NULL || max_size == NULL)
    {
        LOG_E( 
                "mix == NULL || max_size == NULL\n");
            return MIX_RESULT_NULL_PTR;
    }

    parent = MIX_VIDEOFORMATENC(mix);
    MixVideoFormatEnc_H264 *self = MIX_VIDEOFORMATENC_H264(mix);		
    
    LOG_V( "Begin\n");		

    if (MIX_IS_VIDEOFORMATENC_H264(self)) {

        if (self->coded_buf_size > 0) {
            *max_size = self->coded_buf_size;
            LOG_V ("Already calculate the max encoded size, get the value directly");
            return MIX_RESULT_SUCCESS;  			
        }
		
        /*base on the rate control mode to calculate the defaule encoded buffer size*/
        if (self->va_rcmode == VA_RC_NONE) {
            self->coded_buf_size = 
                (parent->picture_width* parent->picture_height * 400) / (16 * 16);  
            // set to value according to QP
        }
        else {	
            self->coded_buf_size = parent->bitrate/ 4; 
        }
        
        self->coded_buf_size = 
            max (self->coded_buf_size , 
                    (parent->picture_width* parent->picture_height * 400) / (16 * 16));
        
        /*in case got a very large user input bit rate value*/
        self->coded_buf_size = 
            min(self->coded_buf_size, 
                    (parent->picture_width * parent->picture_height * 1.5 * 8));
        self->coded_buf_size =  (self->coded_buf_size + 15) &(~15);
    }
    else
    {
        LOG_E( 
                "not H264 video encode Object\n");				
        return MIX_RESULT_INVALID_PARAM;		
    }

    *max_size = self->coded_buf_size;
	
    return MIX_RESULT_SUCCESS;    
}

MIX_RESULT mix_videofmtenc_h264_AnnexB_to_length_prefixed (
        guint8 * bufin, guint bufin_len, guint8* bufout, guint * bufout_len)
{
    
    guint pos = 0;
    guint last_pos = 0;
    
    guint zero_byte_count = 0;	
    guint nal_size = 0;
    guint prefix_length = 0;	
    guint size_copied = 0;	
    guint leading_zero_count = 0;	
    
    if (bufin == NULL || bufout == NULL || bufout_len == NULL) {
        
        LOG_E(
                "bufin == NULL || bufout == NULL || bufout_len = NULL\n");
        return MIX_RESULT_NULL_PTR;
    }
    
    if (bufin_len <= 0 || *bufout_len <= 0) {
        LOG_E(
                "bufin_len <= 0 || *bufout_len <= 0\n");
        return MIX_RESULT_FAIL;		
    }
    
    LOG_V ("Begin\n");		
    
    while ((bufin[pos++] == 0x00)) {                
        zero_byte_count ++;
        if (pos >= bufin_len)  //to make sure the buffer to be accessed is valid
            break;
    }	
    
    if (bufin[pos - 1] != 0x01 || zero_byte_count < 2)
    {
        LOG_E("The stream is not AnnexB format \n");
        return MIX_RESULT_FAIL;	;  //not AnnexB, we won't process it
    }			
    
    zero_byte_count = 0;	
    last_pos = pos;	            
    
    while (pos < bufin_len) {
        
        while (bufin[pos++] == 0) {
            zero_byte_count ++;
            if (pos >= bufin_len) //to make sure the buffer to be accessed is valid
                break;			
        }
        
        if (bufin[pos - 1] == 0x01 && zero_byte_count >= 2) {
            if (zero_byte_count == 2) {
                prefix_length = 3;
            }
            else {
                prefix_length = 4;
                leading_zero_count = zero_byte_count - 3;
            }
            
            LOG_I("leading_zero_count = %d\n", leading_zero_count);						
            
            nal_size = pos - last_pos - prefix_length - leading_zero_count;	
            if (nal_size < 0) {
                LOG_E ("something wrong in the stream\n");	      
                return MIX_RESULT_FAIL;	  //not AnnexB, we won't process it						
            }
            
            if (*bufout_len < (size_copied + nal_size + 4)) {
                LOG_E ("The length of destination buffer is too small\n");	      
                return MIX_RESULT_FAIL;						
            }
            
            LOG_I ("nal_size = %d\n", nal_size);											
            
            /*We use 4 bytes length prefix*/            
            bufout [size_copied] = nal_size >> 24 & 0xff;
            bufout [size_copied + 1] = nal_size >> 16 & 0xff;
            bufout [size_copied + 2] = nal_size >> 8 & 0xff;
            bufout [size_copied + 3] = nal_size  & 0xff;	
            
            size_copied += 4;	//4 bytes length prefix								
            memcpy (bufout + size_copied, bufin + last_pos, nal_size);
            size_copied += nal_size;			
			
            LOG_I ("size_copied = %d\n", size_copied);							
            
            zero_byte_count = 0;	
            leading_zero_count = 0;
            last_pos = pos;					
        }
        
        else if (pos == bufin_len) {
            
            LOG_V ("Last NALU in this frame\n");            
            
            nal_size = pos - last_pos;		
            
            if (*bufout_len < (size_copied + nal_size + 4)) {
                LOG_E ("The length of destination buffer is too small\n");	      
                return MIX_RESULT_FAIL;						
            }
            
            /*We use 4 bytes length prefix*/            
            bufout [size_copied] = nal_size >> 24 & 0xff;
            bufout [size_copied + 1] = nal_size >> 16 & 0xff;
            bufout [size_copied + 2] = nal_size >> 8 & 0xff;
            bufout [size_copied + 3] = nal_size  & 0xff;               
            
            size_copied += 4;	//4 bytes length prefix		
            memcpy (bufout + size_copied, bufin + last_pos, nal_size);
            size_copied += nal_size;				
			
            LOG_I ("size_copied = %d\n", size_copied);							
        }
        
        else {
            zero_byte_count = 0;
            leading_zero_count = 0;
        }
        
    }
    
    if (size_copied != *bufout_len) {
        *bufout_len = size_copied;
    }
    
    LOG_V ("End\n");		    
    
    return MIX_RESULT_SUCCESS;            			
    
}

MIX_RESULT mix_videofmtenc_h264_send_encode_command (MixVideoFormatEnc_H264 *mix)
{
    MIX_RESULT ret = MIX_RESULT_SUCCESS;

    LOG_V( "Begin\n");		

    MixVideoFormatEnc *parent = MIX_VIDEOFORMATENC(&(mix->parent));
	
    if (!MIX_IS_VIDEOFORMATENC_H264(mix))
        return MIX_RESULT_INVALID_PARAM;	
	
    if (mix->encoded_frames == 0 || parent->new_header_required) {
        ret = mix_videofmtenc_h264_send_seq_params (mix);
        if (ret != MIX_RESULT_SUCCESS)
        {
            LOG_E( 
                    "Failed mix_videofmtenc_h264_send_seq_params\n");
            return MIX_RESULT_FAIL;
        }

	 parent->new_header_required = FALSE; //Set to require new header filed to FALSE
    }
    
    ret = mix_videofmtenc_h264_send_picture_parameter (mix);	
    
    if (ret != MIX_RESULT_SUCCESS)
    {
        LOG_E( 
                "Failed mix_videofmtenc_h264_send_picture_parameter\n");	
        return MIX_RESULT_FAIL;
    }
    
    ret = mix_videofmtenc_h264_send_slice_parameter (mix);
    if (ret != MIX_RESULT_SUCCESS)
    {            
        LOG_E( 
                "Failed mix_videofmtenc_h264_send_slice_parameter\n");	
        return MIX_RESULT_FAIL;
    }		
    

    LOG_V( "End\n");		


    return MIX_RESULT_SUCCESS;
}

MIX_RESULT mix_videofmtenc_h264_set_dynamic_enc_config (MixVideoFormatEnc * mix, 
	MixVideoConfigParamsEnc * config_params_enc, 
	MixEncParamsType params_type) {


	MIX_RESULT ret = MIX_RESULT_SUCCESS;
	MixVideoFormatEnc *parent = NULL;
	MixVideoConfigParamsEncH264 * config_params_enc_h264;

	LOG_V( "Begin\n");		

	if (!MIX_IS_VIDEOFORMATENC_H264(mix))
		return MIX_RESULT_INVALID_PARAM;	

	MixVideoFormatEnc_H264 *self = MIX_VIDEOFORMATENC_H264(mix);

	parent = MIX_VIDEOFORMATENC(&(mix->parent));

	if (MIX_IS_VIDEOCONFIGPARAMSENC_H264 (config_params_enc)) {
		config_params_enc_h264 = 
			MIX_VIDEOCONFIGPARAMSENC_H264 (config_params_enc);
	} else {
		LOG_V( 
			"mix_videofmtenc_h264_initialize:  no h264 config params found\n");
		return MIX_RESULT_FAIL;
	}	

	/*
	* For case params_type == MIX_ENC_PARAMS_SLICE_SIZE
	* we don't need to chain up to parent method, as we will handle
	* dynamic slice height change inside this method, and other dynamic
	* controls will be handled in parent method.
	*/
	if (params_type == MIX_ENC_PARAMS_SLICE_SIZE) {

		g_mutex_lock(parent->objectlock);     	
		
		ret = mix_videoconfigparamsenc_h264_get_slice_num (config_params_enc_h264,
			&self->slice_num);

		if (ret != MIX_RESULT_SUCCESS) {
			LOG_E( 
				"Failed to mix_videoconfigparamsenc_h264_get_slice_num\n");  

			g_mutex_unlock(parent->objectlock);       

			return ret;
		}			

		g_mutex_unlock(parent->objectlock);       
		
	} else if (params_type == MIX_ENC_PARAMS_IDR_INTERVAL) {

		g_mutex_lock(parent->objectlock);     	
		
		ret = mix_videoconfigparamsenc_h264_get_IDR_interval(config_params_enc_h264,
			&self->idr_interval);

		if (ret != MIX_RESULT_SUCCESS) {
			LOG_E( 
				"Failed to mix_videoconfigparamsenc_h264_get_IDR_interval\n");  

			g_mutex_unlock(parent->objectlock);       

			return ret;
		}			

		parent->new_header_required = TRUE;

		g_mutex_unlock(parent->objectlock);    
		
	} else{

		/* Chainup parent method. */
		if (parent_class->set_dynamic_config) {
			ret = parent_class->set_dynamic_config(mix, config_params_enc,
				params_type);
		}

		if (ret != MIX_RESULT_SUCCESS)
		{
			LOG_V( 
				"chainup parent method (set_dynamic_config) failed \n");
			return ret;
		}	
	}


	LOG_V( "End\n");		

	return MIX_RESULT_SUCCESS;
	
}