]> git.sesse.net Git - x264/blobdiff - encoder/encoder.c
MBAFF: Copy deblocked pixels to other plane
[x264] / encoder / encoder.c
index 8c01210a5067c00a0e74aaaace60697c9c593f24..1e9a46fa19176196a866ba749f6ad055afa785c2 100644 (file)
@@ -1,7 +1,7 @@
 /*****************************************************************************
  * encoder.c: top-level encoder functions
  *****************************************************************************
- * Copyright (C) 2003-2010 x264 project
+ * Copyright (C) 2003-2011 x264 project
  *
  * Authors: Laurent Aimar <fenrir@via.ecp.fr>
  *          Loren Merritt <lorenm@u.washington.edu>
@@ -25,8 +25,6 @@
  * For more information, contact us at licensing@x264.com.
  *****************************************************************************/
 
-#include <math.h>
-
 #include "common/common.h"
 
 #include "set.h"
@@ -124,7 +122,7 @@ static void x264_slice_header_init( x264_t *h, x264_slice_header_t *sh,
 
     if( !h->mb.b_direct_auto_read && sh->i_type == SLICE_TYPE_B )
     {
-        if( h->fref1[0]->i_poc_l0ref0 == h->fref0[0]->i_poc )
+        if( h->fref[1][0]->i_poc_l0ref0 == h->fref[0][0]->i_poc )
         {
             if( h->mb.b_direct_auto_write )
                 sh->b_direct_spatial_mv_pred = ( h->stat.i_direct_score[1] > h->stat.i_direct_score[0] );
@@ -143,27 +141,29 @@ static void x264_slice_header_init( x264_t *h, x264_slice_header_t *sh,
     sh->i_num_ref_idx_l0_active = 1;
     sh->i_num_ref_idx_l1_active = 1;
 
-    sh->b_ref_pic_list_reordering_l0 = h->b_ref_reorder[0];
-    sh->b_ref_pic_list_reordering_l1 = h->b_ref_reorder[1];
+    sh->b_ref_pic_list_reordering[0] = h->b_ref_reorder[0];
+    sh->b_ref_pic_list_reordering[1] = h->b_ref_reorder[1];
 
     /* If the ref list isn't in the default order, construct reordering header */
-    /* List1 reordering isn't needed yet */
-    if( sh->b_ref_pic_list_reordering_l0 )
+    for( int list = 0; list < 2; list++ )
     {
-        int pred_frame_num = i_frame;
-        for( int i = 0; i < h->i_ref0; i++ )
+        if( sh->b_ref_pic_list_reordering[list] )
         {
-            int diff = h->fref0[i]->i_frame_num - pred_frame_num;
-            sh->ref_pic_list_order[0][i].idc = ( diff > 0 );
-            sh->ref_pic_list_order[0][i].arg = (abs(diff) - 1) & ((1 << sps->i_log2_max_frame_num) - 1);
-            pred_frame_num = h->fref0[i]->i_frame_num;
+            int pred_frame_num = i_frame;
+            for( int i = 0; i < h->i_ref[list]; i++ )
+            {
+                int diff = h->fref[list][i]->i_frame_num - pred_frame_num;
+                sh->ref_pic_list_order[list][i].idc = ( diff > 0 );
+                sh->ref_pic_list_order[list][i].arg = (abs(diff) - 1) & ((1 << sps->i_log2_max_frame_num) - 1);
+                pred_frame_num = h->fref[list][i]->i_frame_num;
+            }
         }
     }
 
     sh->i_cabac_init_idc = param->i_cabac_init_idc;
 
-    sh->i_qp = i_qp;
-    sh->i_qp_delta = i_qp - pps->i_pic_init_qp;
+    sh->i_qp = SPEC_QP(i_qp);
+    sh->i_qp_delta = sh->i_qp - pps->i_pic_init_qp;
     sh->b_sp_for_swidth = 0;
     sh->i_qs_delta = 0;
 
@@ -234,8 +234,8 @@ static void x264_slice_header_write( bs_t *s, x264_slice_header_t *sh, int i_nal
     /* ref pic list reordering */
     if( sh->i_type != SLICE_TYPE_I )
     {
-        bs_write1( s, sh->b_ref_pic_list_reordering_l0 );
-        if( sh->b_ref_pic_list_reordering_l0 )
+        bs_write1( s, sh->b_ref_pic_list_reordering[0] );
+        if( sh->b_ref_pic_list_reordering[0] )
         {
             for( int i = 0; i < sh->i_num_ref_idx_l0_active; i++ )
             {
@@ -247,8 +247,8 @@ static void x264_slice_header_write( bs_t *s, x264_slice_header_t *sh, int i_nal
     }
     if( sh->i_type == SLICE_TYPE_B )
     {
-        bs_write1( s, sh->b_ref_pic_list_reordering_l1 );
-        if( sh->b_ref_pic_list_reordering_l1 )
+        bs_write1( s, sh->b_ref_pic_list_reordering[1] );
+        if( sh->b_ref_pic_list_reordering[1] )
         {
             for( int i = 0; i < sh->i_num_ref_idx_l1_active; i++ )
             {
@@ -381,15 +381,15 @@ static void x264_encoder_thread_init( x264_t *h )
  *
  ****************************************************************************/
 
-static int x264_validate_parameters( x264_t *h )
+static int x264_validate_parameters( x264_t *h, int b_open )
 {
 #if HAVE_MMX
 #ifdef __SSE__
-    if( !(x264_cpu_detect() & X264_CPU_SSE) )
+    if( b_open && !(x264_cpu_detect() & X264_CPU_SSE) )
     {
         x264_log( h, X264_LOG_ERROR, "your cpu does not support SSE1, but x264 was compiled with asm support\n");
 #else
-    if( !(x264_cpu_detect() & X264_CPU_MMXEXT) )
+    if( b_open && !(x264_cpu_detect() & X264_CPU_MMXEXT) )
     {
         x264_log( h, X264_LOG_ERROR, "your cpu does not support MMXEXT, but x264 was compiled with asm support\n");
 #endif
@@ -455,23 +455,10 @@ static int x264_validate_parameters( x264_t *h )
         h->param.analyse.i_weighted_pred = 0;
     }
 
-    if( h->param.b_interlaced )
-    {
-        if( h->param.analyse.i_me_method >= X264_ME_ESA )
-        {
-            x264_log( h, X264_LOG_WARNING, "interlace + me=esa is not implemented\n" );
-            h->param.analyse.i_me_method = X264_ME_UMH;
-        }
-        if( h->param.analyse.i_weighted_pred > 0 )
-        {
-            x264_log( h, X264_LOG_WARNING, "interlace + weightp is not implemented\n" );
-            h->param.analyse.i_weighted_pred = X264_WEIGHTP_NONE;
-        }
-    }
-
     h->param.i_frame_packing = x264_clip3( h->param.i_frame_packing, -1, 5 );
 
     /* Detect default ffmpeg settings and terminate with an error. */
+    if( b_open )
     {
         int score = 0;
         score += h->param.analyse.i_me_range == 0;
@@ -500,7 +487,11 @@ static int x264_validate_parameters( x264_t *h )
         return -1;
     }
     h->param.rc.f_rf_constant = x264_clip3f( h->param.rc.f_rf_constant, -QP_BD_OFFSET, 51 );
+    h->param.rc.f_rf_constant_max = x264_clip3f( h->param.rc.f_rf_constant_max, -QP_BD_OFFSET, 51 );
     h->param.rc.i_qp_constant = x264_clip3( h->param.rc.i_qp_constant, 0, QP_MAX );
+    h->param.analyse.i_subpel_refine = x264_clip3( h->param.analyse.i_subpel_refine, 0, 10 );
+    h->param.rc.f_ip_factor = X264_MAX( h->param.rc.f_ip_factor, 0.01f );
+    h->param.rc.f_pb_factor = X264_MAX( h->param.rc.f_pb_factor, 0.01f );
     if( h->param.rc.i_rc_method == X264_RC_CRF )
     {
         h->param.rc.i_qp_constant = h->param.rc.f_rf_constant + QP_BD_OFFSET;
@@ -536,9 +527,15 @@ static int x264_validate_parameters( x264_t *h )
         h->param.rc.i_qp_max = x264_clip3( (int)(X264_MAX3( qp_p, qp_i, qp_b ) + .999), 0, QP_MAX );
         h->param.rc.i_aq_mode = 0;
         h->param.rc.b_mb_tree = 0;
+        h->param.rc.i_bitrate = 0;
     }
     h->param.rc.i_qp_max = x264_clip3( h->param.rc.i_qp_max, 0, QP_MAX );
     h->param.rc.i_qp_min = x264_clip3( h->param.rc.i_qp_min, 0, h->param.rc.i_qp_max );
+    h->param.rc.i_qp_step = x264_clip3( h->param.rc.i_qp_step, 0, QP_MAX );
+    h->param.rc.i_bitrate = x264_clip3( h->param.rc.i_bitrate, 0, 2000000 );
+    h->param.rc.i_vbv_buffer_size = x264_clip3( h->param.rc.i_vbv_buffer_size, 0, 2000000 );
+    h->param.rc.i_vbv_max_bitrate = x264_clip3( h->param.rc.i_vbv_max_bitrate, 0, 2000000 );
+    h->param.rc.f_vbv_buffer_init = x264_clip3f( h->param.rc.f_vbv_buffer_init, 0, 2000000 );
     if( h->param.rc.i_vbv_buffer_size )
     {
         if( h->param.rc.i_rc_method == X264_RC_CQP )
@@ -583,39 +580,59 @@ static int x264_validate_parameters( x264_t *h )
         x264_log( h, X264_LOG_WARNING, "interlaced + slice-max-mbs is not implemented\n" );
         h->param.i_slice_max_mbs = 0;
     }
+    h->param.i_slice_max_size = X264_MAX( h->param.i_slice_max_size, 0 );
+    h->param.i_slice_max_mbs = X264_MAX( h->param.i_slice_max_mbs, 0 );
+
+    h->param.b_interlaced = !!h->param.b_interlaced;
     int max_slices = (h->param.i_height+((16<<h->param.b_interlaced)-1))/(16<<h->param.b_interlaced);
     if( h->param.b_sliced_threads )
         h->param.i_slice_count = x264_clip3( h->param.i_threads, 0, max_slices );
     else
     {
         h->param.i_slice_count = x264_clip3( h->param.i_slice_count, 0, max_slices );
-        h->param.i_slice_max_size = X264_MAX( h->param.i_slice_max_size, 0 );
-        h->param.i_slice_max_mbs = X264_MAX( h->param.i_slice_max_mbs, 0 );
         if( h->param.i_slice_max_mbs || h->param.i_slice_max_size )
             h->param.i_slice_count = 0;
     }
 
+    if( h->param.b_bluray_compat )
+    {
+        h->param.i_bframe_pyramid = X264_MIN( X264_B_PYRAMID_STRICT, h->param.i_bframe_pyramid );
+        h->param.i_bframe = X264_MIN( h->param.i_bframe, 3 );
+        h->param.b_aud = 1;
+        h->param.i_nal_hrd = X264_MAX( h->param.i_nal_hrd, X264_NAL_HRD_VBR );
+        h->param.i_slice_max_size = 0;
+        h->param.i_slice_max_mbs = 0;
+        h->param.b_intra_refresh = 0;
+        h->param.i_frame_reference = X264_MIN( h->param.i_frame_reference, 6 );
+        h->param.i_dpb_size = X264_MIN( h->param.i_dpb_size, 6 );
+        /* Due to the proliferation of broken players that don't handle dupes properly. */
+        h->param.analyse.i_weighted_pred = X264_MIN( h->param.analyse.i_weighted_pred, X264_WEIGHTP_SIMPLE );
+        if( h->param.b_fake_interlaced )
+            h->param.b_pic_struct = 1;
+    }
+
     h->param.i_frame_reference = x264_clip3( h->param.i_frame_reference, 1, X264_REF_MAX );
     h->param.i_dpb_size = x264_clip3( h->param.i_dpb_size, 1, X264_REF_MAX );
     if( h->param.i_scenecut_threshold < 0 )
         h->param.i_scenecut_threshold = 0;
+    h->param.analyse.i_direct_mv_pred = x264_clip3( h->param.analyse.i_direct_mv_pred, X264_DIRECT_PRED_NONE, X264_DIRECT_PRED_AUTO );
     if( !h->param.analyse.i_subpel_refine && h->param.analyse.i_direct_mv_pred > X264_DIRECT_PRED_SPATIAL )
     {
         x264_log( h, X264_LOG_WARNING, "subme=0 + direct=temporal is not supported\n" );
         h->param.analyse.i_direct_mv_pred = X264_DIRECT_PRED_SPATIAL;
     }
     h->param.i_bframe = x264_clip3( h->param.i_bframe, 0, X264_MIN( X264_BFRAME_MAX, h->param.i_keyint_max-1 ) );
-    h->param.i_open_gop = x264_clip3( h->param.i_open_gop, X264_OPEN_GOP_NONE, X264_OPEN_GOP_BLURAY );
     h->param.i_bframe_bias = x264_clip3( h->param.i_bframe_bias, -90, 100 );
     if( h->param.i_bframe <= 1 )
         h->param.i_bframe_pyramid = X264_B_PYRAMID_NONE;
     h->param.i_bframe_pyramid = x264_clip3( h->param.i_bframe_pyramid, X264_B_PYRAMID_NONE, X264_B_PYRAMID_NORMAL );
+    h->param.i_bframe_adaptive = x264_clip3( h->param.i_bframe_adaptive, X264_B_ADAPT_NONE, X264_B_ADAPT_TRELLIS );
     if( !h->param.i_bframe )
     {
         h->param.i_bframe_adaptive = X264_B_ADAPT_NONE;
         h->param.analyse.i_direct_mv_pred = 0;
         h->param.analyse.b_weighted_bipred = 0;
-        h->param.i_open_gop = X264_OPEN_GOP_NONE;
+        h->param.b_open_gop = 0;
     }
     if( h->param.b_intra_refresh && h->param.i_bframe_pyramid == X264_B_PYRAMID_NORMAL )
     {
@@ -628,10 +645,10 @@ static int x264_validate_parameters( x264_t *h )
         h->param.i_frame_reference = 1;
         h->param.i_dpb_size = 1;
     }
-    if( h->param.b_intra_refresh && h->param.i_open_gop )
+    if( h->param.b_intra_refresh && h->param.b_open_gop )
     {
         x264_log( h, X264_LOG_WARNING, "intra-refresh is not compatible with open-gop\n" );
-        h->param.i_open_gop = X264_OPEN_GOP_NONE;
+        h->param.b_open_gop = 0;
     }
     float fps = h->param.i_fps_num > 0 && h->param.i_fps_den > 0 ? (float) h->param.i_fps_num / h->param.i_fps_den : 25.0;
     if( h->param.i_keyint_min == X264_KEYINT_MIN_AUTO )
@@ -684,14 +701,12 @@ static int x264_validate_parameters( x264_t *h )
     if( h->param.analyse.i_me_method < X264_ME_DIA ||
         h->param.analyse.i_me_method > X264_ME_TESA )
         h->param.analyse.i_me_method = X264_ME_HEX;
-    if( h->param.analyse.i_me_range < 4 )
-        h->param.analyse.i_me_range = 4;
+    h->param.analyse.i_me_range = x264_clip3( h->param.analyse.i_me_range, 4, 1024 );
     if( h->param.analyse.i_me_range > 16 && h->param.analyse.i_me_method <= X264_ME_HEX )
         h->param.analyse.i_me_range = 16;
     if( h->param.analyse.i_me_method == X264_ME_TESA &&
         (h->mb.b_lossless || h->param.analyse.i_subpel_refine <= 1) )
         h->param.analyse.i_me_method = X264_ME_ESA;
-    h->param.analyse.i_subpel_refine = x264_clip3( h->param.analyse.i_subpel_refine, 0, 10 );
     h->param.analyse.b_mixed_references = h->param.analyse.b_mixed_references && h->param.i_frame_reference > 1;
     h->param.analyse.inter &= X264_ANALYSE_PSUB16x16|X264_ANALYSE_PSUB8x8|X264_ANALYSE_BSUB16x16|
                               X264_ANALYSE_I4x4|X264_ANALYSE_I8x8;
@@ -705,33 +720,57 @@ static int x264_validate_parameters( x264_t *h )
     }
     h->param.analyse.i_chroma_qp_offset = x264_clip3(h->param.analyse.i_chroma_qp_offset, -12, 12);
     h->param.analyse.i_trellis = x264_clip3( h->param.analyse.i_trellis, 0, 2 );
+    h->param.rc.i_aq_mode = x264_clip3( h->param.rc.i_aq_mode, 0, 2 );
+    h->param.rc.f_aq_strength = x264_clip3f( h->param.rc.f_aq_strength, 0, 3 );
+    if( h->param.rc.f_aq_strength == 0 )
+        h->param.rc.i_aq_mode = 0;
+
+    if( h->param.i_log_level < X264_LOG_INFO )
+    {
+        h->param.analyse.b_psnr = 0;
+        h->param.analyse.b_ssim = 0;
+    }
+    /* Warn users trying to measure PSNR/SSIM with psy opts on. */
+    if( b_open && (h->param.analyse.b_psnr || h->param.analyse.b_ssim) )
+    {
+        char *s = NULL;
+
+        if( h->param.analyse.b_psy )
+        {
+            s = h->param.analyse.b_psnr ? "psnr" : "ssim";
+            x264_log( h, X264_LOG_WARNING, "--%s used with psy on: results will be invalid!\n", s );
+        }
+        else if( !h->param.rc.i_aq_mode && h->param.analyse.b_ssim )
+        {
+            x264_log( h, X264_LOG_WARNING, "--ssim used with AQ off: results will be invalid!\n" );
+            s = "ssim";
+        }
+        else if(  h->param.rc.i_aq_mode && h->param.analyse.b_psnr )
+        {
+            x264_log( h, X264_LOG_WARNING, "--psnr used with AQ on: results will be invalid!\n" );
+            s = "psnr";
+        }
+        if( s )
+            x264_log( h, X264_LOG_WARNING, "--tune %s should be used if attempting to benchmark %s!\n", s, s );
+    }
+
     if( !h->param.analyse.b_psy )
     {
         h->param.analyse.f_psy_rd = 0;
         h->param.analyse.f_psy_trellis = 0;
     }
-    if( !h->param.analyse.i_trellis )
-        h->param.analyse.f_psy_trellis = 0;
     h->param.analyse.f_psy_rd = x264_clip3f( h->param.analyse.f_psy_rd, 0, 10 );
     h->param.analyse.f_psy_trellis = x264_clip3f( h->param.analyse.f_psy_trellis, 0, 10 );
-    if( h->param.analyse.i_subpel_refine < 6 )
-        h->param.analyse.f_psy_rd = 0;
-    h->mb.i_psy_rd = FIX8( h->param.analyse.f_psy_rd );
+    h->mb.i_psy_rd = h->param.analyse.i_subpel_refine >= 6 ? FIX8( h->param.analyse.f_psy_rd ) : 0;
+    h->mb.i_psy_trellis = h->param.analyse.i_trellis ? FIX8( h->param.analyse.f_psy_trellis / 4 ) : 0;
     /* Psy RDO increases overall quantizers to improve the quality of luma--this indirectly hurts chroma quality */
     /* so we lower the chroma QP offset to compensate */
-    /* This can be triggered repeatedly on multiple calls to parameter_validate, but since encoding
-     * uses the pps chroma qp offset not the param chroma qp offset, this is not a problem. */
-    if( h->mb.i_psy_rd )
+    if( b_open && h->mb.i_psy_rd )
         h->param.analyse.i_chroma_qp_offset -= h->param.analyse.f_psy_rd < 0.25 ? 1 : 2;
-    h->mb.i_psy_trellis = FIX8( h->param.analyse.f_psy_trellis / 4 );
     /* Psy trellis has a similar effect. */
-    if( h->mb.i_psy_trellis )
+    if( b_open && h->mb.i_psy_trellis )
         h->param.analyse.i_chroma_qp_offset -= h->param.analyse.f_psy_trellis < 0.25 ? 1 : 2;
     h->param.analyse.i_chroma_qp_offset = x264_clip3(h->param.analyse.i_chroma_qp_offset, -12, 12);
-    h->param.rc.i_aq_mode = x264_clip3( h->param.rc.i_aq_mode, 0, 2 );
-    h->param.rc.f_aq_strength = x264_clip3f( h->param.rc.f_aq_strength, 0, 3 );
-    if( h->param.rc.f_aq_strength == 0 )
-        h->param.rc.i_aq_mode = 0;
     /* MB-tree requires AQ to be on, even if the strength is zero. */
     if( !h->param.rc.i_aq_mode && h->param.rc.b_mb_tree )
     {
@@ -772,7 +811,22 @@ static int x264_validate_parameters( x264_t *h )
     }
 
     h->param.analyse.i_weighted_pred = x264_clip3( h->param.analyse.i_weighted_pred, X264_WEIGHTP_NONE, X264_WEIGHTP_SMART );
-    if( !h->param.analyse.i_weighted_pred && h->param.rc.b_mb_tree && h->param.analyse.b_psy && !h->param.b_interlaced )
+
+    if( h->param.b_interlaced )
+    {
+        if( h->param.analyse.i_me_method >= X264_ME_ESA )
+        {
+            x264_log( h, X264_LOG_WARNING, "interlace + me=esa is not implemented\n" );
+            h->param.analyse.i_me_method = X264_ME_UMH;
+        }
+        if( h->param.analyse.i_weighted_pred > 0 )
+        {
+            x264_log( h, X264_LOG_WARNING, "interlace + weightp is not implemented\n" );
+            h->param.analyse.i_weighted_pred = X264_WEIGHTP_NONE;
+        }
+    }
+
+    if( !h->param.analyse.i_weighted_pred && h->param.rc.b_mb_tree && h->param.analyse.b_psy )
         h->param.analyse.i_weighted_pred = X264_WEIGHTP_FAKE;
 
     if( h->i_thread_frames > 1 )
@@ -798,6 +852,8 @@ static int x264_validate_parameters( x264_t *h )
         h->param.analyse.i_mv_range_thread = r2;
     }
 
+    if( h->param.rc.f_rate_tolerance < 0 )
+        h->param.rc.f_rate_tolerance = 0;
     if( h->param.rc.f_qblur < 0 )
         h->param.rc.f_qblur = 0;
     if( h->param.rc.f_complexity_blur < 0 )
@@ -805,15 +861,11 @@ static int x264_validate_parameters( x264_t *h )
 
     h->param.i_sps_id &= 31;
 
-    if( h->param.i_log_level < X264_LOG_INFO )
-    {
-        h->param.analyse.b_psnr = 0;
-        h->param.analyse.b_ssim = 0;
-    }
-
     if( h->param.b_interlaced )
         h->param.b_pic_struct = 1;
 
+    h->param.i_nal_hrd = x264_clip3( h->param.i_nal_hrd, X264_NAL_HRD_NONE, X264_NAL_HRD_CBR );
+
     if( h->param.i_nal_hrd && !h->param.rc.i_vbv_buffer_size )
     {
         x264_log( h, X264_LOG_WARNING, "NAL HRD parameters require VBV parameters\n" );
@@ -841,8 +893,12 @@ static int x264_validate_parameters( x264_t *h )
     BOOLIFY( b_repeat_headers );
     BOOLIFY( b_annexb );
     BOOLIFY( b_vfr_input );
+    BOOLIFY( b_pulldown );
+    BOOLIFY( b_tff );
     BOOLIFY( b_pic_struct );
     BOOLIFY( b_fake_interlaced );
+    BOOLIFY( b_open_gop );
+    BOOLIFY( b_bluray_compat );
     BOOLIFY( analyse.b_transform_8x8 );
     BOOLIFY( analyse.b_weighted_bipred );
     BOOLIFY( analyse.b_chroma_me );
@@ -907,6 +963,7 @@ static void x264_set_aspect_ratio( x264_t *h, x264_param_t *param, int initial )
                 h->param.vui.i_sar_width = i_w;
                 h->param.vui.i_sar_height = i_h;
             }
+            x264_sps_init( h->sps, h->param.i_sps_id, &h->param );
         }
     }
 }
@@ -934,7 +991,7 @@ x264_t *x264_encoder_open( x264_param_t *param )
         goto fail;
     }
 
-    if( x264_validate_parameters( h ) < 0 )
+    if( x264_validate_parameters( h, 1 ) < 0 )
         goto fail;
 
     if( h->param.psz_cqm_file )
@@ -946,8 +1003,6 @@ x264_t *x264_encoder_open( x264_param_t *param )
     if( h->param.rc.psz_stat_in )
         h->param.rc.psz_stat_in = strdup( h->param.rc.psz_stat_in );
 
-    x264_set_aspect_ratio( h, &h->param, 1 );
-
     x264_reduce_fraction( &h->param.i_fps_num, &h->param.i_fps_den );
     x264_reduce_fraction( &h->param.i_timebase_num, &h->param.i_timebase_den );
 
@@ -968,6 +1023,8 @@ x264_t *x264_encoder_open( x264_param_t *param )
     h->pps = &h->pps_array[0];
     x264_pps_init( h->pps, h->param.i_sps_id, &h->param, h->sps );
 
+    x264_set_aspect_ratio( h, &h->param, 1 );
+
     x264_validate_levels( h, 1 );
 
     h->chroma_qp_table = i_chroma_qp_table + 12 + h->pps->i_chroma_qp_index_offset;
@@ -978,6 +1035,10 @@ x264_t *x264_encoder_open( x264_param_t *param )
     h->mb.i_mb_width = h->sps->i_mb_width;
     h->mb.i_mb_height = h->sps->i_mb_height;
     h->mb.i_mb_count = h->mb.i_mb_width * h->mb.i_mb_height;
+    /* Adaptive MBAFF and subme 0 are not supported as we require halving motion
+     * vectors during prediction, resulting in hpel mvs.
+     * The chosen solution is to make MBAFF non-adaptive in this case. */
+    h->mb.b_adaptive_mbaff = h->param.b_interlaced && h->param.analyse.i_subpel_refine;
 
     /* Init frames. */
     if( h->param.i_bframe_adaptive == X264_B_ADAPT_TRELLIS && !h->param.rc.b_stat_read )
@@ -989,8 +1050,7 @@ x264_t *x264_encoder_open( x264_param_t *param )
     i_slicetype_length = h->frames.i_delay;
     h->frames.i_delay += h->i_thread_frames - 1;
     h->frames.i_delay += h->param.i_sync_lookahead;
-    h->frames.i_delay += h->param.b_vfr_input && (h->param.rc.i_rc_method == X264_RC_ABR || h->param.rc.b_stat_write
-                                                 || h->param.rc.i_vbv_buffer_size);
+    h->frames.i_delay += h->param.b_vfr_input;
     h->frames.i_bframe_delay = h->param.i_bframe ? (h->param.i_bframe_pyramid ? 2 : 1) : 0;
 
     h->frames.i_max_ref0 = h->param.i_frame_reference;
@@ -1019,8 +1079,7 @@ x264_t *x264_encoder_open( x264_param_t *param )
                         + h->i_thread_frames + 3) * sizeof(x264_frame_t *) );
     if( h->param.analyse.i_weighted_pred > 0 )
         CHECKED_MALLOCZERO( h->frames.blank_unused, h->i_thread_frames * 4 * sizeof(x264_frame_t *) );
-    h->i_ref0 = 0;
-    h->i_ref1 = 0;
+    h->i_ref[0] = h->i_ref[1] = 0;
     h->i_cpb_delay = h->i_coded_fields = h->i_disp_fields = 0;
     h->i_prev_duration = ((uint64_t)h->param.i_fps_den * h->sps->vui.i_time_scale) / ((uint64_t)h->param.i_fps_num * h->sps->vui.i_num_units_in_tick);
     h->i_disp_fields_last_frame = -1;
@@ -1031,8 +1090,10 @@ x264_t *x264_encoder_open( x264_param_t *param )
     x264_predict_8x8c_init( h->param.cpu, h->predict_8x8c );
     x264_predict_8x8_init( h->param.cpu, h->predict_8x8, &h->predict_8x8_filter );
     x264_predict_4x4_init( h->param.cpu, h->predict_4x4 );
-    if( !h->param.b_cabac )
-        x264_init_vlc_tables();
+    if( h->param.b_cabac )
+        x264_cabac_init();
+    else
+        x264_cavlc_init();
     x264_pixel_init( h->param.cpu, &h->pixf );
     x264_dct_init( h->param.cpu, &h->dctf );
     x264_zigzag_init( h->param.cpu, &h->zigzagf, h->param.b_interlaced );
@@ -1064,15 +1125,19 @@ x264_t *x264_encoder_open( x264_param_t *param )
         p += sprintf( p, " none!" );
     x264_log( h, X264_LOG_INFO, "%s\n", buf );
 
-    for( qp = h->param.rc.i_qp_min; qp <= h->param.rc.i_qp_max; qp++ )
-        if( x264_analyse_init_costs( h, qp ) )
+    float *logs = x264_analyse_prepare_costs( h );
+    if( !logs )
+        goto fail;
+    for( qp = X264_MIN( h->param.rc.i_qp_min, QP_MAX_SPEC ); qp <= h->param.rc.i_qp_max; qp++ )
+        if( x264_analyse_init_costs( h, logs, qp ) )
             goto fail;
-    if( x264_analyse_init_costs( h, X264_LOOKAHEAD_QP ) )
+    if( x264_analyse_init_costs( h, logs, X264_LOOKAHEAD_QP ) )
         goto fail;
+    x264_free( logs );
 
     static const uint16_t cost_mv_correct[7] = { 24, 47, 95, 189, 379, 757, 1515 };
     /* Checks for known miscompilation issues. */
-    if( h->cost_mv[x264_lambda_tab[X264_LOOKAHEAD_QP]][2013] != cost_mv_correct[BIT_DEPTH-8] )
+    if( h->cost_mv[X264_LOOKAHEAD_QP][2013] != cost_mv_correct[BIT_DEPTH-8] )
     {
         x264_log( h, X264_LOG_ERROR, "MV cost test failed: x264 has been miscompiled!\n" );
         goto fail;
@@ -1095,8 +1160,8 @@ x264_t *x264_encoder_open( x264_param_t *param )
         * ( h->param.rc.i_rc_method == X264_RC_ABR ? pow( 0.95, h->param.rc.i_qp_min )
           : pow( 0.95, h->param.rc.i_qp_constant ) * X264_MAX( 1, h->param.rc.f_ip_factor )));
 
-    CHECKED_MALLOC( h->nal_buffer, h->out.i_bitstream * 3/2 + 4 );
     h->nal_buffer_size = h->out.i_bitstream * 3/2 + 4;
+    CHECKED_MALLOC( h->nal_buffer, h->nal_buffer_size );
 
     if( h->param.i_threads > 1 &&
         x264_threadpool_init( &h->threadpool, h->param.i_threads, (void*)x264_encoder_thread_init, h ) )
@@ -1122,6 +1187,9 @@ x264_t *x264_encoder_open( x264_param_t *param )
         else
             h->thread[i]->fdec = h->thread[0]->fdec;
 
+        h->thread[i]->sps = &h->thread[i]->sps_array[0];
+        h->thread[i]->pps = &h->thread[i]->pps_array[0];
+
         CHECKED_MALLOC( h->thread[i]->out.p_bitstream, h->out.i_bitstream );
         /* Start each thread with room for init_nal_count NAL units; it'll realloc later if needed. */
         CHECKED_MALLOC( h->thread[i]->out.nal, init_nal_count*sizeof(x264_nal_t) );
@@ -1244,27 +1312,22 @@ int x264_encoder_reconfig( x264_t *h, x264_param_t *param )
     if( h->param.rc.i_vbv_max_bitrate > 0 && h->param.rc.i_vbv_buffer_size > 0 &&
           param->rc.i_vbv_max_bitrate > 0 &&   param->rc.i_vbv_buffer_size > 0 )
     {
+        rc_reconfig |= h->param.rc.i_vbv_max_bitrate != param->rc.i_vbv_max_bitrate;
+        rc_reconfig |= h->param.rc.i_vbv_buffer_size != param->rc.i_vbv_buffer_size;
+        rc_reconfig |= h->param.rc.i_bitrate != param->rc.i_bitrate;
         COPY( rc.i_vbv_max_bitrate );
         COPY( rc.i_vbv_buffer_size );
         COPY( rc.i_bitrate );
-        rc_reconfig = 1;
-    }
-    if( h->param.rc.f_rf_constant != param->rc.f_rf_constant )
-    {
-        COPY( rc.f_rf_constant );
-        rc_reconfig = 1;
-    }
-    if( h->param.rc.f_rf_constant_max != param->rc.f_rf_constant_max )
-    {
-        COPY( rc.f_rf_constant_max );
-        rc_reconfig = 1;
     }
-
+    rc_reconfig |= h->param.rc.f_rf_constant != param->rc.f_rf_constant;
+    rc_reconfig |= h->param.rc.f_rf_constant_max != param->rc.f_rf_constant_max;
+    COPY( rc.f_rf_constant );
+    COPY( rc.f_rf_constant_max );
 #undef COPY
 
     mbcmp_init( h );
 
-    int ret = x264_validate_parameters( h );
+    int ret = x264_validate_parameters( h, 0 );
 
     /* Supported reconfiguration options (1-pass only):
      * vbv-maxrate
@@ -1343,9 +1406,11 @@ static int x264_encoder_encapsulate_nals( x264_t *h, int start )
         nal_size += h->out.nal[i].i_payload;
 
     /* Worst-case NAL unit escaping: reallocate the buffer if it's too small. */
-    if( h->nal_buffer_size < nal_size * 3/2 + h->out.i_nal * 4 )
+    int necessary_size = nal_size * 3/2 + h->out.i_nal * 4;
+    if( h->nal_buffer_size < necessary_size )
     {
-        uint8_t *buf = x264_malloc( nal_size * 2 + h->out.i_nal * 4 );
+        h->nal_buffer_size = necessary_size * 2;
+        uint8_t *buf = x264_malloc( h->nal_buffer_size );
         if( !buf )
             return -1;
         if( previous_nal_size )
@@ -1400,6 +1465,8 @@ int x264_encoder_headers( x264_t *h, x264_nal_t **pp_nal, int *pi_nal )
         return -1;
 
     frame_size = x264_encoder_encapsulate_nals( h, 0 );
+    if( frame_size < 0 )
+        return -1;
 
     /* now set output*/
     *pi_nal = h->out.i_nal;
@@ -1421,20 +1488,24 @@ static inline void x264_reference_check_reorder( x264_t *h )
             h->b_ref_reorder[0] = 1;
             return;
         }
-    for( int i = 0; i < h->i_ref0 - 1; i++ )
-        /* P and B-frames use different default orders. */
-        if( h->sh.i_type == SLICE_TYPE_P ? h->fref0[i]->i_frame_num < h->fref0[i+1]->i_frame_num
-                                         : h->fref0[i]->i_poc < h->fref0[i+1]->i_poc )
+    for( int list = 0; list <= (h->sh.i_type == SLICE_TYPE_B); list++ )
+        for( int i = 0; i < h->i_ref[list] - 1; i++ )
         {
-            h->b_ref_reorder[0] = 1;
-            return;
+            int framenum_diff = h->fref[list][i+1]->i_frame_num - h->fref[list][i]->i_frame_num;
+            int poc_diff = h->fref[list][i+1]->i_poc - h->fref[list][i]->i_poc;
+            /* P and B-frames use different default orders. */
+            if( h->sh.i_type == SLICE_TYPE_P ? framenum_diff > 0 : list == 1 ? poc_diff < 0 : poc_diff > 0 )
+            {
+                h->b_ref_reorder[list] = 1;
+                return;
+            }
         }
 }
 
 /* return -1 on failure, else return the index of the new reference frame */
 int x264_weighted_reference_duplicate( x264_t *h, int i_ref, const x264_weight_t *w )
 {
-    int i = h->i_ref0;
+    int i = h->i_ref[0];
     int j = 1;
     x264_frame_t *newframe;
     if( i <= 1 ) /* empty list, definitely can't duplicate frame */
@@ -1451,20 +1522,22 @@ int x264_weighted_reference_duplicate( x264_t *h, int i_ref, const x264_weight_t
         return -1;
 
     newframe = x264_frame_pop_blank_unused( h );
+    if( !newframe )
+        return -1;
 
     //FIXME: probably don't need to copy everything
-    *newframe = *h->fref0[i_ref];
+    *newframe = *h->fref[0][i_ref];
     newframe->i_reference_count = 1;
-    newframe->orig = h->fref0[i_ref];
+    newframe->orig = h->fref[0][i_ref];
     newframe->b_duplicate = 1;
     memcpy( h->fenc->weight[j], w, sizeof(h->fenc->weight[i]) );
 
     /* shift the frames to make space for the dupe. */
     h->b_ref_reorder[0] = 1;
-    if( h->i_ref0 < X264_REF_MAX )
-        ++h->i_ref0;
-    h->fref0[X264_REF_MAX-1] = NULL;
-    x264_frame_unshift( &h->fref0[j], newframe );
+    if( h->i_ref[0] < X264_REF_MAX )
+        ++h->i_ref[0];
+    h->fref[0][X264_REF_MAX-1] = NULL;
+    x264_frame_unshift( &h->fref[0][j], newframe );
 
     return j;
 }
@@ -1472,14 +1545,14 @@ int x264_weighted_reference_duplicate( x264_t *h, int i_ref, const x264_weight_t
 static void x264_weighted_pred_init( x264_t *h )
 {
     /* for now no analysis and set all weights to nothing */
-    for( int i_ref = 0; i_ref < h->i_ref0; i_ref++ )
-        h->fenc->weighted[i_ref] = h->fref0[i_ref]->filtered[0];
+    for( int i_ref = 0; i_ref < h->i_ref[0]; i_ref++ )
+        h->fenc->weighted[i_ref] = h->fref[0][i_ref]->filtered[0];
 
     // FIXME: This only supports weighting of one reference frame
     // and duplicates of that frame.
     h->fenc->i_lines_weighted = 0;
 
-    for( int i_ref = 0; i_ref < (h->i_ref0 << h->sh.b_mbaff); i_ref++ )
+    for( int i_ref = 0; i_ref < (h->i_ref[0] << h->sh.b_mbaff); i_ref++ )
         for( int i = 0; i < 3; i++ )
             h->sh.weight[i_ref][i].weightfn = NULL;
 
@@ -1493,7 +1566,7 @@ static void x264_weighted_pred_init( x264_t *h )
     int buffer_next = 0;
     for( int i = 0; i < 3; i++ )
     {
-        for( int j = 0; j < h->i_ref0; j++ )
+        for( int j = 0; j < h->i_ref[0]; j++ )
         {
             if( h->fenc->weight[j][i].weightfn )
             {
@@ -1517,7 +1590,7 @@ static void x264_weighted_pred_init( x264_t *h )
                         //scale full resolution frame
                         if( h->param.i_threads == 1 )
                         {
-                            pixel *src = h->fref0[j]->filtered[0] - h->fref0[j]->i_stride[0]*i_padv - PADH;
+                            pixel *src = h->fref[0][j]->filtered[0] - h->fref[0][j]->i_stride[0]*i_padv - PADH;
                             pixel *dst = h->fenc->weighted[j] - h->fenc->i_stride[0]*i_padv - PADH;
                             int stride = h->fenc->i_stride[0];
                             int width = h->fenc->i_width[0] + PADH*2;
@@ -1532,7 +1605,7 @@ static void x264_weighted_pred_init( x264_t *h )
     }
 
     if( weightplane[1] )
-        for( int i = 0; i < h->i_ref0; i++ )
+        for( int i = 0; i < h->i_ref[0]; i++ )
         {
             if( h->sh.weight[i][1].weightfn && !h->sh.weight[i][2].weightfn )
             {
@@ -1553,13 +1626,22 @@ static void x264_weighted_pred_init( x264_t *h )
     h->sh.weight[0][2].i_denom = h->sh.weight[0][1].i_denom;
 }
 
+static inline int x264_reference_distance( x264_t *h, x264_frame_t *frame )
+{
+    if( h->param.i_frame_packing == 5 )
+        return abs((h->fenc->i_frame&~1) - (frame->i_frame&~1)) +
+                  ((h->fenc->i_frame&1) != (frame->i_frame&1));
+    else
+        return abs(h->fenc->i_frame - frame->i_frame);
+}
+
 static inline void x264_reference_build_list( x264_t *h, int i_poc )
 {
     int b_ok;
 
     /* build ref list 0/1 */
-    h->mb.pic.i_fref[0] = h->i_ref0 = 0;
-    h->mb.pic.i_fref[1] = h->i_ref1 = 0;
+    h->mb.pic.i_fref[0] = h->i_ref[0] = 0;
+    h->mb.pic.i_fref[1] = h->i_ref[1] = 0;
     if( h->sh.i_type == SLICE_TYPE_I )
         return;
 
@@ -1568,54 +1650,50 @@ static inline void x264_reference_build_list( x264_t *h, int i_poc )
         if( h->frames.reference[i]->b_corrupt )
             continue;
         if( h->frames.reference[i]->i_poc < i_poc )
-            h->fref0[h->i_ref0++] = h->frames.reference[i];
+            h->fref[0][h->i_ref[0]++] = h->frames.reference[i];
         else if( h->frames.reference[i]->i_poc > i_poc )
-            h->fref1[h->i_ref1++] = h->frames.reference[i];
+            h->fref[1][h->i_ref[1]++] = h->frames.reference[i];
     }
 
-    /* Order ref0 from higher to lower poc */
-    do
+    /* Order reference lists by distance from the current frame. */
+    for( int list = 0; list < 2; list++ )
     {
-        b_ok = 1;
-        for( int i = 0; i < h->i_ref0 - 1; i++ )
+        h->fref_nearest[list] = h->fref[list][0];
+        do
         {
-            if( h->fref0[i]->i_poc < h->fref0[i+1]->i_poc )
+            b_ok = 1;
+            for( int i = 0; i < h->i_ref[list] - 1; i++ )
             {
-                XCHG( x264_frame_t*, h->fref0[i], h->fref0[i+1] );
-                b_ok = 0;
-                break;
+                if( list ? h->fref[list][i+1]->i_poc < h->fref_nearest[list]->i_poc
+                         : h->fref[list][i+1]->i_poc > h->fref_nearest[list]->i_poc )
+                    h->fref_nearest[list] = h->fref[list][i+1];
+                if( x264_reference_distance( h, h->fref[list][i] ) > x264_reference_distance( h, h->fref[list][i+1] ) )
+                {
+                    XCHG( x264_frame_t*, h->fref[list][i], h->fref[list][i+1] );
+                    b_ok = 0;
+                    break;
+                }
             }
-        }
-    } while( !b_ok );
+        } while( !b_ok );
+    }
 
     if( h->sh.i_mmco_remove_from_end )
-        for( int i = h->i_ref0-1; i >= h->i_ref0 - h->sh.i_mmco_remove_from_end; i-- )
+        for( int i = h->i_ref[0]-1; i >= h->i_ref[0] - h->sh.i_mmco_remove_from_end; i-- )
         {
-            int diff = h->i_frame_num - h->fref0[i]->i_frame_num;
-            h->sh.mmco[h->sh.i_mmco_command_count].i_poc = h->fref0[i]->i_poc;
+            int diff = h->i_frame_num - h->fref[0][i]->i_frame_num;
+            h->sh.mmco[h->sh.i_mmco_command_count].i_poc = h->fref[0][i]->i_poc;
             h->sh.mmco[h->sh.i_mmco_command_count++].i_difference_of_pic_nums = diff;
         }
 
-    /* Order ref1 from lower to higher poc (bubble sort) for B-frame */
-    do
-    {
-        b_ok = 1;
-        for( int i = 0; i < h->i_ref1 - 1; i++ )
-        {
-            if( h->fref1[i]->i_poc > h->fref1[i+1]->i_poc )
-            {
-                XCHG( x264_frame_t*, h->fref1[i], h->fref1[i+1] );
-                b_ok = 0;
-                break;
-            }
-        }
-    } while( !b_ok );
-
     x264_reference_check_reorder( h );
 
-    h->i_ref1 = X264_MIN( h->i_ref1, h->frames.i_max_ref1 );
-    h->i_ref0 = X264_MIN( h->i_ref0, h->frames.i_max_ref0 );
-    h->i_ref0 = X264_MIN( h->i_ref0, h->param.i_frame_reference ); // if reconfig() has lowered the limit
+    h->i_ref[1] = X264_MIN( h->i_ref[1], h->frames.i_max_ref1 );
+    h->i_ref[0] = X264_MIN( h->i_ref[0], h->frames.i_max_ref0 );
+    h->i_ref[0] = X264_MIN( h->i_ref[0], h->param.i_frame_reference ); // if reconfig() has lowered the limit
+
+    /* For Blu-ray compliance, don't reference frames outside of the minigop. */
+    if( IS_X264_TYPE_B( h->fenc->i_type ) && h->param.b_bluray_compat )
+        h->i_ref[0] = X264_MIN( h->i_ref[0], IS_X264_TYPE_B( h->fref[0][0]->i_type ) + 1 );
 
     /* add duplicates */
     if( h->fenc->i_type == X264_TYPE_P )
@@ -1653,9 +1731,9 @@ static inline void x264_reference_build_list( x264_t *h, int i_poc )
         h->mb.ref_blind_dupe = idx;
     }
 
-    assert( h->i_ref0 + h->i_ref1 <= X264_REF_MAX );
-    h->mb.pic.i_fref[0] = h->i_ref0;
-    h->mb.pic.i_fref[1] = h->i_ref1;
+    assert( h->i_ref[0] + h->i_ref[1] <= X264_REF_MAX );
+    h->mb.pic.i_fref[0] = h->i_ref[0];
+    h->mb.pic.i_fref[1] = h->i_ref[1];
 }
 
 static void x264_fdec_filter_row( x264_t *h, int mb_y, int b_inloop )
@@ -1667,7 +1745,10 @@ static void x264_fdec_filter_row( x264_t *h, int mb_y, int b_inloop )
     int b_measure_quality = 1;
     int min_y = mb_y - (1 << h->sh.b_mbaff);
     int b_start = min_y == h->i_threadslice_start;
-    int max_y = b_end ? h->i_threadslice_end : mb_y;
+    /* Even in interlaced mode, deblocking never modifies more than 4 pixels
+     * above each MB, as bS=4 doesn't happen for the top of interlaced mbpairs. */
+    int minpix_y = min_y*16 - 4 * !b_start;
+    int maxpix_y = mb_y*16 - 4 * !b_end;
     b_deblock &= b_hpel || h->param.psz_dump_yuv;
     if( h->param.b_sliced_threads && b_start && min_y && !b_inloop )
     {
@@ -1680,9 +1761,19 @@ static void x264_fdec_filter_row( x264_t *h, int mb_y, int b_inloop )
         return;
 
     if( b_deblock )
-        for( int y = min_y; y < max_y; y += (1 << h->sh.b_mbaff) )
+        for( int y = min_y; y < mb_y; y += (1 << h->sh.b_mbaff) )
             x264_frame_deblock_row( h, y );
 
+    /* FIXME: Prediction requires different borders for interlaced/progressive mc,
+     * but the actual image data is equivalent. For now, maintain this
+     * consistency by copying deblocked pixels between planes. */
+    if( h->param.b_interlaced )
+        for( int p = 0; p < 2; p++ )
+            for( int i = minpix_y>>p; i < maxpix_y>>p; i++ )
+                memcpy( h->fdec->plane_fld[p] + i*h->fdec->i_stride[p],
+                        h->fdec->plane[p]     + i*h->fdec->i_stride[p],
+                        h->mb.i_mb_width*16*sizeof(pixel) );
+
     if( b_hpel )
     {
         int end = mb_y == h->mb.i_mb_height;
@@ -1694,25 +1785,30 @@ static void x264_fdec_filter_row( x264_t *h, int mb_y, int b_inloop )
         }
     }
 
+    if( h->sh.b_mbaff )
+        for( int i = 0; i < 2; i++ )
+        {
+            XCHG( pixel *, h->intra_border_backup[0][i], h->intra_border_backup[3][i] );
+            XCHG( pixel *, h->intra_border_backup[1][i], h->intra_border_backup[4][i] );
+        }
+
     if( h->i_thread_frames > 1 && h->fdec->b_kept_as_ref )
         x264_frame_cond_broadcast( h->fdec, mb_y*16 + (b_end ? 10000 : -(X264_THREAD_HEIGHT << h->sh.b_mbaff)) );
 
-    min_y = min_y*16 - 8 * !b_start;
-    max_y = b_end ? X264_MIN( h->i_threadslice_end*16 , h->param.i_height ) : mb_y*16 - 8;
-
     if( b_measure_quality )
     {
+        maxpix_y = X264_MIN( maxpix_y, h->param.i_height );
         if( h->param.analyse.b_psnr )
         {
             uint64_t ssd_y = x264_pixel_ssd_wxh( &h->pixf,
-                h->fdec->plane[0] + min_y * h->fdec->i_stride[0], h->fdec->i_stride[0],
-                h->fenc->plane[0] + min_y * h->fenc->i_stride[0], h->fenc->i_stride[0],
-                h->param.i_width, max_y-min_y );
+                h->fdec->plane[0] + minpix_y * h->fdec->i_stride[0], h->fdec->i_stride[0],
+                h->fenc->plane[0] + minpix_y * h->fenc->i_stride[0], h->fenc->i_stride[0],
+                h->param.i_width, maxpix_y-minpix_y );
             uint64_t ssd_u, ssd_v;
             x264_pixel_ssd_nv12( &h->pixf,
-                h->fdec->plane[1] + (min_y>>1) * h->fdec->i_stride[1], h->fdec->i_stride[1],
-                h->fenc->plane[1] + (min_y>>1) * h->fenc->i_stride[1], h->fenc->i_stride[1],
-                h->param.i_width>>1, (max_y-min_y)>>1, &ssd_u, &ssd_v );
+                h->fdec->plane[1] + (minpix_y>>1) * h->fdec->i_stride[1], h->fdec->i_stride[1],
+                h->fenc->plane[1] + (minpix_y>>1) * h->fenc->i_stride[1], h->fenc->i_stride[1],
+                h->param.i_width>>1, (maxpix_y-minpix_y)>>1, &ssd_u, &ssd_v );
             h->stat.frame.i_ssd[0] += ssd_y;
             h->stat.frame.i_ssd[1] += ssd_u;
             h->stat.frame.i_ssd[2] += ssd_v;
@@ -1723,12 +1819,12 @@ static void x264_fdec_filter_row( x264_t *h, int mb_y, int b_inloop )
             x264_emms();
             /* offset by 2 pixels to avoid alignment of ssim blocks with dct blocks,
              * and overlap by 4 */
-            min_y += b_start ? 2 : -6;
+            minpix_y += b_start ? 2 : -6;
             h->stat.frame.f_ssim +=
                 x264_pixel_ssim_wxh( &h->pixf,
-                    h->fdec->plane[0] + 2+min_y*h->fdec->i_stride[0], h->fdec->i_stride[0],
-                    h->fenc->plane[0] + 2+min_y*h->fenc->i_stride[0], h->fenc->i_stride[0],
-                    h->param.i_width-2, max_y-min_y, h->scratch_buffer );
+                    h->fdec->plane[0] + 2+minpix_y*h->fdec->i_stride[0], h->fdec->i_stride[0],
+                    h->fenc->plane[0] + 2+minpix_y*h->fenc->i_stride[0], h->fenc->i_stride[0],
+                    h->param.i_width-2, maxpix_y-minpix_y, h->scratch_buffer );
         }
     }
 }
@@ -1822,8 +1918,8 @@ static inline void x264_slice_init( x264_t *h, int i_nal_type, int i_global_qp )
     {
         x264_slice_header_init( h, &h->sh, h->sps, h->pps, -1, h->i_frame_num, i_global_qp );
 
-        h->sh.i_num_ref_idx_l0_active = h->i_ref0 <= 0 ? 1 : h->i_ref0;
-        h->sh.i_num_ref_idx_l1_active = h->i_ref1 <= 0 ? 1 : h->i_ref1;
+        h->sh.i_num_ref_idx_l0_active = h->i_ref[0] <= 0 ? 1 : h->i_ref[0];
+        h->sh.i_num_ref_idx_l1_active = h->i_ref[1] <= 0 ? 1 : h->i_ref[1];
         if( h->sh.i_num_ref_idx_l0_active != h->pps->i_num_ref_idx_l0_default_active ||
             (h->sh.i_type == SLICE_TYPE_B && h->sh.i_num_ref_idx_l1_active != h->pps->i_num_ref_idx_l1_default_active) )
         {
@@ -1831,6 +1927,12 @@ static inline void x264_slice_init( x264_t *h, int i_nal_type, int i_global_qp )
         }
     }
 
+    if( h->fenc->i_type == X264_TYPE_BREF && h->param.b_bluray_compat && h->sh.i_mmco_command_count )
+    {
+        h->b_sh_backup = 1;
+        h->sh_backup = h->sh;
+    }
+
     h->fdec->i_frame_num = h->sh.i_frame_num;
 
     if( h->sps->i_poc_type == 0 )
@@ -1839,11 +1941,12 @@ static inline void x264_slice_init( x264_t *h, int i_nal_type, int i_global_qp )
         if( h->param.b_interlaced )
         {
             h->sh.i_delta_poc_bottom = h->param.b_tff ? 1 : -1;
-            if( h->sh.i_delta_poc_bottom == -1 )
-                h->sh.i_poc = h->fdec->i_poc + 1;
+            h->sh.i_poc += h->sh.i_delta_poc_bottom == -1;
         }
         else
             h->sh.i_delta_poc_bottom = 0;
+        h->fdec->i_delta_poc[0] = h->sh.i_delta_poc_bottom == -1;
+        h->fdec->i_delta_poc[1] = h->sh.i_delta_poc_bottom ==  1;
     }
     else if( h->sps->i_poc_type == 1 )
     {
@@ -1862,7 +1965,7 @@ static int x264_slice_write( x264_t *h )
     int i_skip;
     int mb_xy, i_mb_x, i_mb_y;
     int i_skip_bak = 0; /* Shut up GCC. */
-    bs_t bs_bak;
+    bs_t UNINIT(bs_bak);
     x264_cabac_t cabac_bak;
     uint8_t cabac_prevbyte_bak = 0; /* Shut up GCC. */
     int mv_bits_bak = 0;
@@ -1873,9 +1976,11 @@ static int x264_slice_write( x264_t *h )
      * other inaccuracies. */
     int overhead_guess = (NALU_OVERHEAD - (h->param.b_annexb && h->out.i_nal)) + 1 + h->param.b_cabac + 5;
     int slice_max_size = h->param.i_slice_max_size > 0 ? (h->param.i_slice_max_size-overhead_guess)*8 : 0;
+    int back_up_bitstream = slice_max_size || (!h->param.b_cabac && h->sps->i_profile_idc < PROFILE_HIGH);
     int starting_bits = bs_pos(&h->out.bs);
     int b_deblock = h->sh.i_disable_deblocking_filter_idc != 1;
     int b_hpel = h->fdec->b_kept_as_ref;
+    uint8_t *last_emu_check;
     b_deblock &= b_hpel || h->param.psz_dump_yuv;
     bs_realign( &h->out.bs );
 
@@ -1904,7 +2009,10 @@ static int x264_slice_write( x264_t *h )
         /* init cabac */
         x264_cabac_context_init( &h->cabac, h->sh.i_type, x264_clip3( h->sh.i_qp-QP_BD_OFFSET, 0, 51 ), h->sh.i_cabac_init_idc );
         x264_cabac_encode_init ( &h->cabac, h->out.bs.p, h->out.bs.p_end );
+        last_emu_check = h->cabac.p;
     }
+    else
+        last_emu_check = h->out.bs.p;
     h->mb.i_last_qp = h->sh.i_qp;
     h->mb.i_last_dqp = 0;
 
@@ -1919,7 +2027,7 @@ static int x264_slice_write( x264_t *h )
         if( x264_bitstream_check_buffer( h ) )
             return -1;
 
-        if( slice_max_size )
+        if( back_up_bitstream )
         {
             mv_bits_bak = h->stat.frame.i_mv_bits;
             tex_bits_bak = h->stat.frame.i_tex_bits;
@@ -1943,12 +2051,24 @@ static int x264_slice_write( x264_t *h )
         if( i_mb_x == 0 && !h->mb.b_reencode_mb )
             x264_fdec_filter_row( h, i_mb_y, 1 );
 
+        if( h->param.b_interlaced )
+        {
+            if( h->mb.b_adaptive_mbaff )
+            {
+                if( !(i_mb_y&1) )
+                    h->mb.b_interlaced = 1;
+                x264_zigzag_init( h->param.cpu, &h->zigzagf, h->mb.b_interlaced );
+            }
+            h->mb.field[mb_xy] = h->mb.b_interlaced;
+        }
+
         /* load cache */
         x264_macroblock_cache_load( h, i_mb_x, i_mb_y );
 
         x264_macroblock_analyse( h );
 
         /* encode this macroblock -> be careful it can change the mb type to P_SKIP if needed */
+reencode:
         x264_macroblock_encode( h );
 
         if( h->param.b_cabac )
@@ -1977,6 +2097,19 @@ static int x264_slice_write( x264_t *h )
                     i_skip = 0;
                 }
                 x264_macroblock_write_cavlc( h );
+                /* If there was a CAVLC level code overflow, try again at a higher QP. */
+                if( h->mb.b_overflow )
+                {
+                    h->mb.i_chroma_qp = h->chroma_qp_table[++h->mb.i_qp];
+                    h->mb.i_skip_intra = 0;
+                    h->mb.b_skip_mc = 0;
+                    h->mb.b_overflow = 0;
+                    h->out.bs = bs_bak;
+                    i_skip = i_skip_bak;
+                    h->stat.frame.i_mv_bits = mv_bits_bak;
+                    h->stat.frame.i_tex_bits = tex_bits_bak;
+                    goto reencode;
+                }
             }
         }
 
@@ -1988,15 +2121,14 @@ static int x264_slice_write( x264_t *h )
             /* Count the skip run, just in case. */
             if( !h->param.b_cabac )
                 total_bits += bs_size_ue_big( i_skip );
-            /* HACK: we assume no more than 3 bytes of NALU escaping, but
-             * this can fail in CABAC streams with an extremely large number of identical
-             * blocks in sequence (e.g. all-black intra blocks).
-             * Thus, every 64 blocks, pretend we've used a byte.
-             * For reference, a seqeuence of identical empty-CBP i16x16 blocks will use
-             * one byte after 26 macroblocks, assuming a perfectly adapted CABAC.
-             * That's 78 macroblocks to generate the 3-byte sequence to trigger an escape. */
-            else if( ((mb_xy - h->sh.i_first_mb) & 63) == 63 )
-                slice_max_size -= 8;
+            /* Check for escape bytes. */
+            uint8_t *end = h->param.b_cabac ? h->cabac.p : h->out.bs.p;
+            for( ; last_emu_check < end - 2; last_emu_check++ )
+                if( last_emu_check[0] == 0 && last_emu_check[1] == 0 && last_emu_check[2] <= 3 )
+                {
+                    slice_max_size -= 8;
+                    last_emu_check++;
+                }
             /* We'll just re-encode this last macroblock if we go over the max slice size. */
             if( total_bits - starting_bits > slice_max_size && !h->mb.b_reencode_mb )
             {
@@ -2164,6 +2296,7 @@ static void x264_thread_sync_context( x264_t *dst, x264_t *src )
     memcpy( &dst->i_frame, &src->i_frame, offsetof(x264_t, mb.type) - offsetof(x264_t, i_frame) );
     dst->param = src->param;
     dst->stat = src->stat;
+    dst->pixf = src->pixf;
 }
 
 static void x264_thread_sync_stat( x264_t *dst, x264_t *src )
@@ -2349,7 +2482,7 @@ int     x264_encoder_encode( x264_t *h,
         thread_oldest  = h;
     }
 #if HAVE_MMX
-    if( h->i_thread_frames == 1 && h->param.cpu&X264_CPU_SSE_MISALIGN )
+    if( h->param.cpu&X264_CPU_SSE_MISALIGN )
         x264_cpu_mask_misalign_sse();
 #endif
 
@@ -2505,7 +2638,7 @@ int     x264_encoder_encode( x264_t *h,
         i_nal_ref_idc = NAL_PRIORITY_HIGH; /* Not completely true but for now it is (as all I/P are kept as ref)*/
         h->sh.i_type = SLICE_TYPE_I;
         x264_reference_hierarchy_reset( h );
-        if( h->param.i_open_gop )
+        if( h->param.b_open_gop )
             h->frames.i_poc_last_open_gop = h->fenc->b_keyframe ? h->fenc->i_poc : -1;
     }
     else if( h->fenc->i_type == X264_TYPE_P )
@@ -2605,10 +2738,10 @@ int     x264_encoder_encode( x264_t *h,
         }
         else if( h->fenc->i_type == X264_TYPE_P )
         {
-            int pocdiff = (h->fdec->i_poc - h->fref0[0]->i_poc)/2;
+            int pocdiff = (h->fdec->i_poc - h->fref[0][0]->i_poc)/2;
             float increment = X264_MAX( ((float)h->mb.i_mb_width-1) / h->param.i_keyint_max, 1 );
-            h->fdec->f_pir_position = h->fref0[0]->f_pir_position;
-            h->fdec->i_frames_since_pir = h->fref0[0]->i_frames_since_pir + pocdiff;
+            h->fdec->f_pir_position = h->fref[0][0]->f_pir_position;
+            h->fdec->i_frames_since_pir = h->fref[0][0]->i_frames_since_pir + pocdiff;
             if( h->fdec->i_frames_since_pir >= h->param.i_keyint_max ||
                 (h->b_queued_intra_refresh && h->fdec->f_pir_position + 0.5 >= h->mb.i_mb_width) )
             {
@@ -2680,7 +2813,7 @@ int     x264_encoder_encode( x264_t *h,
 
         if( h->fenc->i_type != X264_TYPE_IDR )
         {
-            int time_to_recovery = h->param.i_open_gop ? 0 : X264_MIN( h->mb.i_mb_width - 1, h->param.i_keyint_max ) + h->param.i_bframe - 1;
+            int time_to_recovery = h->param.b_open_gop ? 0 : X264_MIN( h->mb.i_mb_width - 1, h->param.i_keyint_max ) + h->param.i_bframe - 1;
             x264_nal_start( h, NAL_SEI, NAL_PRIORITY_DISPOSABLE );
             x264_sei_recovery_point_write( h, &h->out.bs, time_to_recovery );
             if( x264_nal_end( h ) )
@@ -2708,6 +2841,17 @@ int     x264_encoder_encode( x264_t *h,
         overhead += h->out.nal[h->out.i_nal-1].i_payload + NALU_OVERHEAD - (h->param.b_annexb && h->out.i_nal-1);
     }
 
+    /* As required by Blu-ray. */
+    if( !IS_X264_TYPE_B( h->fenc->i_type ) && h->b_sh_backup )
+    {
+        h->b_sh_backup = 0;
+        x264_nal_start( h, NAL_SEI, NAL_PRIORITY_DISPOSABLE );
+        x264_sei_dec_ref_pic_marking_write( h, &h->out.bs );
+        if( x264_nal_end( h ) )
+            return -1;
+        overhead += h->out.nal[h->out.i_nal-1].i_payload + NALU_OVERHEAD - (h->param.b_annexb && h->out.i_nal-1);
+    }
+
     if( h->fenc->b_keyframe && h->param.b_intra_refresh )
         h->i_cpb_delay_pir_offset = h->fenc->i_cpb_delay;
 
@@ -2725,18 +2869,18 @@ int     x264_encoder_encode( x264_t *h,
         x264_reference_check_reorder( h );
     }
 
-    if( h->i_ref0 )
-        h->fdec->i_poc_l0ref0 = h->fref0[0]->i_poc;
+    if( h->i_ref[0] )
+        h->fdec->i_poc_l0ref0 = h->fref[0][0]->i_poc;
+
+    /* ------------------------ Create slice header  ----------------------- */
+    x264_slice_init( h, i_nal_type, i_global_qp );
 
+    /*------------------------- Weights -------------------------------------*/
     if( h->sh.i_type == SLICE_TYPE_B )
         x264_macroblock_bipred_init( h );
 
-    /*------------------------- Weights -------------------------------------*/
     x264_weighted_pred_init( h );
 
-    /* ------------------------ Create slice header  ----------------------- */
-    x264_slice_init( h, i_nal_type, i_global_qp );
-
     if( i_nal_ref_idc != NAL_PRIORITY_DISPOSABLE )
         h->i_frame_num++;
 
@@ -2799,11 +2943,14 @@ static int x264_encoder_frame_end( x264_t *h, x264_t *thread_current,
     }
 
     int frame_size = x264_encoder_encapsulate_nals( h, 0 );
+    if( frame_size < 0 )
+        return -1;
 
     /* Set output picture properties */
     pic_out->i_type = h->fenc->i_type;
 
     pic_out->b_keyframe = h->fenc->b_keyframe;
+    pic_out->i_pic_struct = h->fenc->i_pic_struct;
 
     pic_out->i_pts = h->fdec->i_pts;
     pic_out->i_dts = h->fdec->i_dts;
@@ -2851,6 +2998,8 @@ static int x264_encoder_frame_end( x264_t *h, x264_t *thread_current,
         if( x264_nal_end( h ) )
             return -1;
         int total_size = x264_encoder_encapsulate_nals( h, h->out.i_nal-1 );
+        if( total_size < 0 )
+            return -1;
         frame_size += total_size;
         filler -= total_size;
     }
@@ -2886,14 +3035,10 @@ static int x264_encoder_frame_end( x264_t *h, x264_t *thread_current,
         for( int i_list = 0; i_list < 2; i_list++ )
             for( int i = 0; i < X264_REF_MAX*2; i++ )
                 h->stat.i_mb_count_ref[h->sh.i_type][i_list][i] += h->stat.frame.i_mb_count_ref[i_list][i];
-    if( h->sh.i_type == SLICE_TYPE_P )
+    if( h->sh.i_type == SLICE_TYPE_P && h->param.analyse.i_weighted_pred >= X264_WEIGHTP_SIMPLE )
     {
-        h->stat.i_consecutive_bframes[h->fdec->i_frame - h->fref0[0]->i_frame - 1]++;
-        if( h->param.analyse.i_weighted_pred >= X264_WEIGHTP_SIMPLE )
-        {
-            h->stat.i_wpred[0] += !!h->sh.weight[0][0].weightfn;
-            h->stat.i_wpred[1] += !!h->sh.weight[0][1].weightfn || !!h->sh.weight[0][2].weightfn;
-        }
+        h->stat.i_wpred[0] += !!h->sh.weight[0][0].weightfn;
+        h->stat.i_wpred[1] += !!h->sh.weight[0][1].weightfn || !!h->sh.weight[0][2].weightfn;
     }
     if( h->sh.i_type == SLICE_TYPE_B )
     {
@@ -2908,6 +3053,8 @@ static int x264_encoder_frame_end( x264_t *h, x264_t *thread_current,
                 h->stat.i_direct_score[i] += h->stat.frame.i_direct_score[i];
         }
     }
+    else
+        h->stat.i_consecutive_bframes[h->fenc->i_bframes]++;
 
     psz_message[0] = '\0';
     double dur = h->fenc->f_duration;
@@ -2980,11 +3127,11 @@ static int x264_encoder_frame_end( x264_t *h, x264_t *thread_current,
 
     /* Remove duplicates, must be done near the end as breaks h->fref0 array
      * by freeing some of its pointers. */
-    for( int i = 0; i < h->i_ref0; i++ )
-        if( h->fref0[i] && h->fref0[i]->b_duplicate )
+    for( int i = 0; i < h->i_ref[0]; i++ )
+        if( h->fref[0][i] && h->fref[0][i]->b_duplicate )
         {
-            x264_frame_push_blank_unused( h, h->fref0[i] );
-            h->fref0[i] = 0;
+            x264_frame_push_blank_unused( h, h->fref[0][i] );
+            h->fref[0][i] = 0;
         }
 
     if( h->param.psz_dump_yuv )
@@ -3070,11 +3217,11 @@ void    x264_encoder_close  ( x264_t *h )
             }
         }
     }
-    if( h->param.i_bframe && h->stat.i_frame_count[SLICE_TYPE_P] )
+    if( h->param.i_bframe && h->stat.i_frame_count[SLICE_TYPE_B] )
     {
         char *p = buf;
         int den = 0;
-        // weight by number of frames (including the P-frame) that are in a sequence of N B-frames
+        // weight by number of frames (including the I/P-frames) that are in a sequence of N B-frames
         for( int i = 0; i <= h->param.i_bframe; i++ )
             den += (i+1) * h->stat.i_consecutive_bframes[i];
         for( int i = 0; i <= h->param.i_bframe; i++ )
@@ -3306,6 +3453,12 @@ void    x264_encoder_close  ( x264_t *h )
 
     h = h->thread[0];
 
+    for( int i = 0; i < h->i_thread_frames; i++ )
+        if( h->thread[i]->b_thread_active )
+            for( int j = 0; j < h->thread[i]->i_ref[0]; j++ )
+                if( h->thread[i]->fref[0][j] && h->thread[i]->fref[0][j]->b_duplicate )
+                    x264_frame_delete( h->thread[i]->fref[0][j] );
+
     for( int i = h->param.i_threads - 1; i >= 0; i-- )
     {
         x264_frame_t **frame;
@@ -3320,10 +3473,13 @@ void    x264_encoder_close  ( x264_t *h )
                     x264_frame_delete( *frame );
             }
             frame = &h->thread[i]->fdec;
-            assert( (*frame)->i_reference_count > 0 );
-            (*frame)->i_reference_count--;
-            if( (*frame)->i_reference_count == 0 )
-                x264_frame_delete( *frame );
+            if( *frame )
+            {
+                assert( (*frame)->i_reference_count > 0 );
+                (*frame)->i_reference_count--;
+                if( (*frame)->i_reference_count == 0 )
+                    x264_frame_delete( *frame );
+            }
             x264_macroblock_cache_free( h->thread[i] );
         }
         x264_macroblock_thread_free( h->thread[i], 0 );