Switch to exponential interpolation between presets.

[x264] / output / matroska.c

diff --git a/output/matroska.c b/output/matroska.c
index b1c3f13e389654e7e1ff43fd7510452c4c335b1d..91f42e5bd79956a26ba69e0bd05702103b6bf882 100644 (file)
--- a/output/matroska.c
+++ b/output/matroska.c
@@ -1,7 +1,7 @@
 /*****************************************************************************
  * matroska.c: matroska muxer
  *****************************************************************************
- * Copyright (C) 2005-2015 x264 project
+ * Copyright (C) 2005-2016 x264 project
  *
  * Authors: Mike Matsnev <mike@haali.su>
  *
@@ -62,9 +62,14 @@ static int open_file( char *psz_filename, hnd_t *p_handle, cli_output_opt_t *opt
     return 0;
 }
 
+#define STEREO_COUNT 7
+static const uint8_t stereo_modes[STEREO_COUNT] = {5,9,7,1,3,13,0};
+static const uint8_t stereo_w_div[STEREO_COUNT] = {1,2,1,2,1,1,1};
+static const uint8_t stereo_h_div[STEREO_COUNT] = {1,1,2,1,2,1,1};
+
 static int set_param( hnd_t handle, x264_param_t *p_param )
 {
-    mkv_hnd_t   *p_mkv = handle;
+    mkv_hnd_t *p_mkv = handle;
     int64_t dw, dh;
 
     if( p_param->i_fps_num > 0 && !p_param->b_vfr_input )
@@ -77,25 +82,27 @@ static int set_param( hnd_t handle, x264_param_t *p_param )
         p_mkv->frame_duration = 0;
     }
 
-    p_mkv->width = p_mkv->d_width = p_param->i_width;
-    p_mkv->height = p_mkv->d_height = p_param->i_height;
+    dw = p_mkv->width = p_param->i_width;
+    dh = p_mkv->height = p_param->i_height;
     p_mkv->display_size_units = DS_PIXELS;
-    p_mkv->stereo_mode = p_param->i_frame_packing;
-
+    p_mkv->stereo_mode = -1;
+    if( p_param->i_frame_packing >= 0 && p_param->i_frame_packing < STEREO_COUNT )
+    {
+        p_mkv->stereo_mode = stereo_modes[p_param->i_frame_packing];
+        dw /= stereo_w_div[p_param->i_frame_packing];
+        dh /= stereo_h_div[p_param->i_frame_packing];
+    }
     if( p_param->vui.i_sar_width && p_param->vui.i_sar_height
         && p_param->vui.i_sar_width != p_param->vui.i_sar_height )
     {
         if ( p_param->vui.i_sar_width > p_param->vui.i_sar_height ) {
-            dw = (int64_t)p_param->i_width * p_param->vui.i_sar_width / p_param->vui.i_sar_height;
-            dh = p_param->i_height;
+            dw = dw * p_param->vui.i_sar_width / p_param->vui.i_sar_height;
         } else {
-            dw = p_param->i_width;
-            dh = (int64_t)p_param->i_height * p_param->vui.i_sar_height / p_param->vui.i_sar_width;
+            dh = dh * p_param->vui.i_sar_height / p_param->vui.i_sar_width;
         }
-
-        p_mkv->d_width = (int)dw;
-        p_mkv->d_height = (int)dh;
     }
+    p_mkv->d_width = (int)dw;
+    p_mkv->d_height = (int)dh;
 
     p_mkv->i_timebase_num = p_param->i_timebase_num;
     p_mkv->i_timebase_den = p_param->i_timebase_den;
@@ -150,11 +157,11 @@ static int write_headers( hnd_t handle, x264_nal_t *p_nal )
                            avcC, avcC_len, p_mkv->frame_duration, 50000,
                            p_mkv->width, p_mkv->height,
                            p_mkv->d_width, p_mkv->d_height, p_mkv->display_size_units, p_mkv->stereo_mode );
+    free( avcC );
+
     if( ret < 0 )
         return ret;
 
-    free( avcC );
-
     // SEI
 
     if( !p_mkv->b_writing_frame )