x264: add hrd-option

(cherry picked from commit 878968cc492db7412943c3a1ec6c19428a2fe41d)
Signed-off-by: Ilkka Ollakka <ileoo@iki.fi>

modules/codec/x264.c

@@ -381,6 +381,9 @@ static void Close( vlc_object_t * );
     "Currently default is lower than x264 default because unmuxable output" \
     "doesn't handle larger values that well yet" )
 
+#define HRD_TEXT N_("HRD-timing information")
+#define HRD_LONGTEXT N_("HRD-timing information")
+
 static const char *const enc_me_list[] =
   { "dia", "hex", "umh", "esa", "tesa" };
 static const char *const enc_me_list_text[] =
@@ -478,6 +481,11 @@ vlc_module_begin ()
     add_integer( SOUT_CFG_PREFIX "slice-max-size", 0, NULL, SLICE_MAX_SIZE, SLICE_MAX_SIZE_LONGTEXT, false )
     add_integer( SOUT_CFG_PREFIX "slice-max-mbs", 0, NULL, SLICE_MAX_MBS, SLICE_MAX_MBS_LONGTEXT, false )
 
+#if X264_BUILD >= 92
+    add_string( SOUT_CFG_PREFIX "hrd", "none", NULL, HRD_TEXT, HRD_LONGTEXT, false )
+        change_string_list( x264_nal_hrd_names, x264_nal_hrd_names, 0 );
+#endif
+
 
 /* Ratecontrol */
 
@@ -678,7 +686,7 @@ static const char *const ppsz_sout_options[] = {
     "sps-id", "ssim", "stats", "subme", "trellis",
     "verbose", "vbv-bufsize", "vbv-init", "vbv-maxrate", "weightb", "weightp",
     "aq-mode", "aq-strength", "psy-rd", "psy", "profile", "lookahead", "slices",
-    "slice-max-size", "slice-max-mbs", "intra-refresh", "mbtree", NULL
+    "slice-max-size", "slice-max-mbs", "intra-refresh", "mbtree", "hrd", NULL
 };
 
 static block_t *Encode( encoder_t *, picture_t * );
@@ -913,6 +921,14 @@ static int  Open ( vlc_object_t *p_this )
     if( i_val >= 1 )
         p_sys->param.analyse.i_subpel_refine = i_val;
 
+#if X264_BUILD >= 92
+    psz_val = var_GetString( p_enc, SOUT_CFG_PREFIX "hrd");
+    if( !strcmp( psz_val, "vbr" ) )
+        p_sys->param.i_nal_hrd = X264_NAL_HRD_VBR;
+    else if( !strcmp( psz_val, "cbr" ) )
+        p_sys->param.i_nal_hrd = X264_NAL_HRD_CBR;
+#endif
+
     //TODO: psz_val == NULL ?
     psz_val = var_GetString( p_enc, SOUT_CFG_PREFIX "me" );
     if( !strcmp( psz_val, "dia" ) )