[vlc-devel] [PATCH 07/28] core: change var_InheritURational to output a vlc_rational_t

Steve Lhomme robux4 at videolabs.io
Mon Apr 3 10:21:55 CEST 2017


---
 include/vlc_variables.h                  |  4 ++--
 modules/access/decklink.cpp              |  2 +-
 modules/access/imem.c                    |  4 ++--
 modules/access/timecode.c                |  3 +--
 modules/access/v4l2/video.c              |  9 ++++-----
 modules/demux/image.c                    |  4 ++--
 modules/demux/rawvid.c                   |  5 ++---
 modules/stream_out/transcode/transcode.c |  2 +-
 modules/video_filter/fps.c               |  2 +-
 src/misc/variables.c                     | 16 ++++++++--------
 src/video_output/video_output.c          |  3 +--
 test/src/misc/variables.c                | 32 ++++++++++++++++----------------
 12 files changed, 41 insertions(+), 45 deletions(-)

diff --git a/include/vlc_variables.h b/include/vlc_variables.h
index 83752b171f..59ad99367c 100644
--- a/include/vlc_variables.h
+++ b/include/vlc_variables.h
@@ -652,8 +652,8 @@ static inline void *var_InheritAddress( vlc_object_t *obj, const char *name )
 }
 #define var_InheritAddress(o, n) var_InheritAddress(VLC_OBJECT(o), n)
 
-VLC_API int var_InheritURational( vlc_object_t *, unsigned *num, unsigned *den, const char *var );
-#define var_InheritURational(a,b,c,d) var_InheritURational(VLC_OBJECT(a), b, c, d)
+VLC_API int var_InheritURational( vlc_object_t *, vlc_rational_t *dst, const char *var );
+#define var_InheritURational(a,b,d) var_InheritURational(VLC_OBJECT(a), b, d)
 
 #define var_GetInteger(a,b)   var_GetInteger( VLC_OBJECT(a),b)
 #define var_GetBool(a,b)   var_GetBool( VLC_OBJECT(a),b)
diff --git a/modules/access/decklink.cpp b/modules/access/decklink.cpp
index b4d054c6fa..ee3ba6398f 100644
--- a/modules/access/decklink.cpp
+++ b/modules/access/decklink.cpp
@@ -197,7 +197,7 @@ static es_format_t GetModeSettings(demux_t *demux, IDeckLinkDisplayMode *m)
     video_fmt.i_bitrate = video_fmt.video.i_width * video_fmt.video.i_height * video_fmt.video.i_frame_rate * 2 * 8;
 
     vlc_rational_t aspect;
-    if (!var_InheritURational(demux, &aspect.num, &aspect.den, "decklink-aspect-ratio") &&
+    if (!var_InheritURational(demux, &aspect, "decklink-aspect-ratio") &&
          aspect.num > 0 && aspect.den > 0) {
         video_fmt.video.i_sar_num = aspect.num * video_fmt.video.i_height;
         video_fmt.video.i_sar_den = aspect.den * video_fmt.video.i_width;
diff --git a/modules/access/imem.c b/modules/access/imem.c
index dbdc982075..e6974e1182 100644
--- a/modules/access/imem.c
+++ b/modules/access/imem.c
@@ -431,13 +431,13 @@ static int OpenDemux(vlc_object_t *object)
         fmt.video.i_width  = var_InheritInteger(object, "imem-width");
         fmt.video.i_height = var_InheritInteger(object, "imem-height");
         vlc_rational_t rat;
-        if (!var_InheritURational(object, &rat.num, &rat.den, "imem-dar") && rat.num && rat.den) {
+        if (!var_InheritURational(object, &rat, "imem-dar") && rat.num && rat.den) {
             if (fmt.video.i_width > 0 && fmt.video.i_height > 0) {
                 fmt.video.i_sar_num = rat.num * fmt.video.i_height;
                 fmt.video.i_sar_den = rat.den * fmt.video.i_width;
             }
         }
-        if (!var_InheritURational(object, &rat.num, &rat.den, "imem-fps") && rat.num && rat.den) {
+        if (!var_InheritURational(object, &rat, "imem-fps") && rat.num && rat.den) {
             fmt.video.i_frame_rate      = rat.num;
             fmt.video.i_frame_rate_base = rat.den;
         }
diff --git a/modules/access/timecode.c b/modules/access/timecode.c
index fd579792ca..18d8ed40ce 100644
--- a/modules/access/timecode.c
+++ b/modules/access/timecode.c
@@ -178,8 +178,7 @@ static int Open (vlc_object_t *obj)
     sys->es = es_out_Add (demux->out, &fmt);
 
     vlc_rational_t fps;
-    if (var_InheritURational (demux, &fps.num, &fps.den, "timecode-fps")
-     || !fps.num || !fps.den)
+    if (var_InheritURational (demux, &fps, "timecode-fps") || !fps.num || !fps.den)
     {
         msg_Err (demux, "invalid frame rate");
         free (sys);
diff --git a/modules/access/v4l2/video.c b/modules/access/v4l2/video.c
index 96bd3bb91e..c36945c049 100644
--- a/modules/access/v4l2/video.c
+++ b/modules/access/v4l2/video.c
@@ -438,12 +438,11 @@ int SetupFormat (vlc_object_t *obj, int fd, uint32_t fourcc,
     uint64_t best_area = 0;
 
     vlc_rational_t fps;
-    if (var_InheritURational(obj, &fps.den, &fps.num,
-                             CFG_PREFIX"fps") == VLC_SUCCESS)
+    if (var_InheritURational(obj, &fps, CFG_PREFIX"fps") == VLC_SUCCESS)
     {
-        msg_Dbg (obj, " requested frame internal: %u/%u", fps.num, fps.den);
-        min_it.numerator   = fps.num;
-        min_it.denominator = fps.den;
+        msg_Dbg (obj, " requested frame internal: %u/%u", fps.den, fps.num);
+        min_it.numerator   = fps.den;
+        min_it.denominator = fps.num;
     }
     else
         min_it = zero;
diff --git a/modules/demux/image.c b/modules/demux/image.c
index 9663fb516a..1904d20119 100644
--- a/modules/demux/image.c
+++ b/modules/demux/image.c
@@ -666,8 +666,8 @@ static int Open(vlc_object_t *object)
     fmt.i_id    = var_InheritInteger(demux, "image-id");
     fmt.i_group = var_InheritInteger(demux, "image-group");
     vlc_rational_t fps;
-    if (var_InheritURational(demux, &fps.num, &fps.den, "image-fps") ||
-        !fps.num || !fps.den) {
+    if (var_InheritURational(demux, &fps, "image-fps") || !fps.num || !fps.den)
+    {
         msg_Err(demux, "Invalid frame rate, using 10/1 instead");
         fps.num      = 10;
         fps.den      = 1;
diff --git a/modules/demux/rawvid.c b/modules/demux/rawvid.c
index d503f856fb..d92fd9e842 100644
--- a/modules/demux/rawvid.c
+++ b/modules/demux/rawvid.c
@@ -291,14 +291,13 @@ valid:
         free( psz_tmp );
     }
 
-    if( var_InheritURational( p_demux, &fps.num, &fps.den, "rawvid-fps" ) )
+    if( var_InheritURational( p_demux, &fps, "rawvid-fps" ) )
     {
         fps.num = 0;
         fps.den = 1;
     }
 
-    if( var_InheritURational( p_demux, &sar.num, &sar.den,
-                              "rawvid-aspect-ratio" ) )
+    if( var_InheritURational( p_demux, &sar, "rawvid-aspect-ratio" ) )
         sar.num = sar.den = 1;
 
     /* moan about anything wrong */
diff --git a/modules/stream_out/transcode/transcode.c b/modules/stream_out/transcode/transcode.c
index 0f91d252c6..e22e256a80 100644
--- a/modules/stream_out/transcode/transcode.c
+++ b/modules/stream_out/transcode/transcode.c
@@ -346,7 +346,7 @@ static int Open( vlc_object_t *p_this )
 
     p_sys->f_scale = var_GetFloat( p_stream, SOUT_CFG_PREFIX "scale" );
 
-    p_sys->b_master_sync = var_InheritURational( p_stream, &p_sys->fps.num, &p_sys->fps.den, SOUT_CFG_PREFIX "fps" ) == VLC_SUCCESS;
+    p_sys->b_master_sync = var_InheritURational( p_stream, &p_sys->fps, SOUT_CFG_PREFIX "fps" ) == VLC_SUCCESS;
 
     p_sys->i_width = var_GetInteger( p_stream, SOUT_CFG_PREFIX "width" );
 
diff --git a/modules/video_filter/fps.c b/modules/video_filter/fps.c
index 5222b17233..146c870e72 100644
--- a/modules/video_filter/fps.c
+++ b/modules/video_filter/fps.c
@@ -151,7 +151,7 @@ static int Open( vlc_object_t *p_this)
     video_format_Copy( &p_filter->fmt_out.video, &p_filter->fmt_in.video );
 
     /* If we don't have fps option, use filter output values */
-    if( var_InheritURational( p_filter, &fps.num, &fps.den, CFG_PREFIX "fps" ) )
+    if( var_InheritURational( p_filter, &fps, CFG_PREFIX "fps" ) )
     {
         fps.num = p_filter->fmt_in.video.i_frame_rate;
         fps.den = p_filter->fmt_in.video.i_frame_rate_base;
diff --git a/src/misc/variables.c b/src/misc/variables.c
index 72296111e1..53a35f03a2 100644
--- a/src/misc/variables.c
+++ b/src/misc/variables.c
@@ -1214,7 +1214,7 @@ int var_Inherit( vlc_object_t *p_this, const char *psz_name, int i_type,
  * The rational is already reduced.
  */
 int (var_InheritURational)(vlc_object_t *object,
-                           unsigned *num, unsigned *den,
+                           vlc_rational_t *dst,
                            const char *var)
 {
     char *str = var_InheritString(object, var);
@@ -1263,20 +1263,20 @@ int (var_InheritURational)(vlc_object_t *object,
     free(str);
 
     if (n == 0) {
-        *num = 0;
-        *den = d ? 1 : 0;
+        dst->num = 0;
+        dst->den = d ? 1 : 0;
     } else if (d == 0) {
-        *num = 1;
-        *den = 0;
+        dst->num = 1;
+        dst->den = 0;
     } else
-        vlc_ureduce(num, den, n, d, 0);
+        vlc_ureduce(&dst->num, &dst->den, n, d, 0);
 
     return VLC_SUCCESS;
 
 error:
     free(str);
-    *num = 0;
-    *den = 0;
+    dst->num = 0;
+    dst->den = 0;
     return VLC_EGENERIC;
 }
 
diff --git a/src/video_output/video_output.c b/src/video_output/video_output.c
index a9abda4342..ec052f9585 100644
--- a/src/video_output/video_output.c
+++ b/src/video_output/video_output.c
@@ -576,8 +576,7 @@ static void VoutGetDisplayCfg(vout_thread_t *vout, vout_display_cfg_t *cfg, cons
     cfg->display.width   = display_width > 0  ? display_width  : 0;
     cfg->display.height  = display_height > 0 ? display_height : 0;
     cfg->is_display_filled  = var_GetBool(vout, "autoscale");
-    if (var_InheritURational(vout, &cfg->display.sar.num, &cfg->display.sar.den,
-                             "monitor-par") |
+    if (var_InheritURational(vout, &cfg->display.sar, "monitor-par") ||
             !cfg->display.sar.num  || !cfg->display.sar.den) {
         cfg->display.sar.num = 1;
         cfg->display.sar.den = 1;
diff --git a/test/src/misc/variables.c b/test/src/misc/variables.c
index 3d95c9f465..20fc302f7e 100644
--- a/test/src/misc/variables.c
+++ b/test/src/misc/variables.c
@@ -104,63 +104,63 @@ static void test_fracts( libvlc_int_t *p_libvlc )
     vlc_rational_t frac;
 
     var_Create( p_libvlc, name, VLC_VAR_STRING );
-    assert( var_InheritURational( p_libvlc, &frac.num, &frac.den, name ) != 0 );
+    assert( var_InheritURational( p_libvlc, &frac, name ) != 0 );
 
     var_SetString( p_libvlc, name, "123garbage" );
-    assert( var_InheritURational( p_libvlc, &frac.num, &frac.den, name ) != 0 );
+    assert( var_InheritURational( p_libvlc, &frac, name ) != 0 );
 
     var_SetString( p_libvlc, name, "4/5garbage" );
-    assert( var_InheritURational( p_libvlc, &frac.num, &frac.den, name ) != 0 );
+    assert( var_InheritURational( p_libvlc, &frac, name ) != 0 );
 
     var_SetString( p_libvlc, name, "6.7garbage" );
-    assert( var_InheritURational( p_libvlc, &frac.num, &frac.den, name ) != 0 );
+    assert( var_InheritURational( p_libvlc, &frac, name ) != 0 );
 
     var_SetString( p_libvlc, name, "." );
-    assert( var_InheritURational( p_libvlc, &frac.num, &frac.den, name ) == 0 );
+    assert( var_InheritURational( p_libvlc, &frac, name ) == 0 );
     assert( frac.num == 0 && frac.den == 1 );
 
     var_SetString( p_libvlc, name, "010" );
-    assert( var_InheritURational( p_libvlc, &frac.num, &frac.den, name ) == 0 );
+    assert( var_InheritURational( p_libvlc, &frac, name ) == 0 );
     assert( frac.num == 10 && frac.den == 1 );
 
     var_SetString( p_libvlc, name, "30" );
-    assert( var_InheritURational( p_libvlc, &frac.num, &frac.den, name ) == 0 );
+    assert( var_InheritURational( p_libvlc, &frac, name ) == 0 );
     assert( frac.num == 30 && frac.den == 1 );
 
     var_SetString( p_libvlc, name, "30.0" );
-    assert( var_InheritURational( p_libvlc, &frac.num, &frac.den, name ) == 0 );
+    assert( var_InheritURational( p_libvlc, &frac, name ) == 0 );
     assert( frac.num == 30 && frac.den == 1 );
 
     var_SetString( p_libvlc, name, "030.030" );
-    assert( var_InheritURational( p_libvlc, &frac.num, &frac.den, name ) == 0 );
+    assert( var_InheritURational( p_libvlc, &frac, name ) == 0 );
     assert( frac.num == 3003 && frac.den == 100 );
 
     var_SetString( p_libvlc, name, "60/2" );
-    assert( var_InheritURational( p_libvlc, &frac.num, &frac.den, name ) == 0 );
+    assert( var_InheritURational( p_libvlc, &frac, name ) == 0 );
     assert( frac.num == 30 && frac.den == 1 );
 
     var_SetString( p_libvlc, name, "29.97" );
-    assert( var_InheritURational( p_libvlc, &frac.num, &frac.den, name ) == 0 );
+    assert( var_InheritURational( p_libvlc, &frac, name ) == 0 );
     assert( frac.num == 2997 && frac.den == 100 );
 
     var_SetString( p_libvlc, name, "30000/1001" );
-    assert( var_InheritURational( p_libvlc, &frac.num, &frac.den, name ) == 0 );
+    assert( var_InheritURational( p_libvlc, &frac, name ) == 0 );
     assert( frac.num == 30000 && frac.den == 1001 );
 
     var_SetString( p_libvlc, name, ".125" );
-    assert( var_InheritURational( p_libvlc, &frac.num, &frac.den, name ) == 0 );
+    assert( var_InheritURational( p_libvlc, &frac, name ) == 0 );
     assert( frac.num == 1 && frac.den == 8 );
 
     var_SetString( p_libvlc, name, "12:9" );
-    assert( var_InheritURational( p_libvlc, &frac.num, &frac.den, name ) == 0 );
+    assert( var_InheritURational( p_libvlc, &frac, name ) == 0 );
     assert( frac.num == 4 && frac.den == 3 );
 
     var_SetString( p_libvlc, name, "000000/00000000" );
-    assert( var_InheritURational( p_libvlc, &frac.num, &frac.den, name ) == 0 );
+    assert( var_InheritURational( p_libvlc, &frac, name ) == 0 );
     assert( frac.num == 0 && frac.den == 0 );
 
     var_SetString( p_libvlc, name, "12345/0" );
-    assert( var_InheritURational( p_libvlc, &frac.num, &frac.den, name ) == 0 );
+    assert( var_InheritURational( p_libvlc, &frac, name ) == 0 );
     assert( frac.num == 1 && frac.den == 0 );
 
     var_Destroy( p_libvlc, name );
-- 
2.11.1



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