ffprobe: always print all Stereo3D fields

ffprobe is meant to generate parseable output, and if a field is present, it
should be printed even if it has a default value.

Signed-off-by: James Almer <jamrial@gmail.com>

fftools/ffprobe.c

@@ -2546,11 +2546,8 @@ static void print_pkt_side_data(WriterContext *w,
             print_int("inverted", !!(stereo->flags & AV_STEREO3D_FLAG_INVERT));
             print_str("view", av_stereo3d_view_name(stereo->view));
             print_str("primary_eye", av_stereo3d_primary_eye_name(stereo->primary_eye));
-            if (stereo->baseline)
             print_int("baseline", stereo->baseline);
-            if (stereo->horizontal_disparity_adjustment.num && stereo->horizontal_disparity_adjustment.den)
             print_q("horizontal_disparity_adjustment", stereo->horizontal_disparity_adjustment, '/');
-            if (stereo->horizontal_field_of_view)
             print_int("horizontal_field_of_view", stereo->horizontal_field_of_view);
         } else if (sd->type == AV_PKT_DATA_SPHERICAL) {
             const AVSphericalMapping *spherical = (AVSphericalMapping *)sd->data;

tests/ref/fate/matroska-spherical-mono

@@ -5,6 +5,9 @@ type=2D
 inverted=0
 view=packed
 primary_eye=none
+baseline=0
+horizontal_disparity_adjustment=0/0
+horizontal_field_of_view=0
 [/SIDE_DATA]
 [SIDE_DATA]
 side_data_type=Spherical Mapping

tests/ref/fate/matroska-spherical-mono-remux

@@ -29,6 +29,9 @@ type=2D
 inverted=0
 view=packed
 primary_eye=none
+baseline=0
+horizontal_disparity_adjustment=0/0
+horizontal_field_of_view=0
 [/SIDE_DATA]
 [SIDE_DATA]
 side_data_type=Spherical Mapping
@@ -55,6 +58,9 @@ type=2D
 inverted=0
 view=packed
 primary_eye=none
+baseline=0
+horizontal_disparity_adjustment=0/0
+horizontal_field_of_view=0
 [/SIDE_DATA]
 [SIDE_DATA]
 side_data_type=Spherical Mapping

tests/ref/fate/matroska-stereo_mode

@@ -134,6 +134,9 @@ type=side by side
 inverted=0
 view=packed
 primary_eye=none
+baseline=0
+horizontal_disparity_adjustment=0/0
+horizontal_field_of_view=0
 [/SIDE_DATA]
 [/STREAM]
 [STREAM]
@@ -151,6 +154,9 @@ type=top and bottom
 inverted=1
 view=packed
 primary_eye=none
+baseline=0
+horizontal_disparity_adjustment=0/0
+horizontal_field_of_view=0
 [/SIDE_DATA]
 [/STREAM]
 [STREAM]
@@ -166,6 +172,9 @@ type=interleaved lines
 inverted=1
 view=packed
 primary_eye=none
+baseline=0
+horizontal_disparity_adjustment=0/0
+horizontal_field_of_view=0
 [/SIDE_DATA]
 [/STREAM]
 [STREAM]
@@ -182,6 +191,9 @@ type=interleaved columns
 inverted=1
 view=packed
 primary_eye=none
+baseline=0
+horizontal_disparity_adjustment=0/0
+horizontal_field_of_view=0
 [/SIDE_DATA]
 [/STREAM]
 [STREAM]

tests/ref/fate/matroska-vp8-alpha-remux

@@ -37,5 +37,8 @@ type=2D
 inverted=0
 view=packed
 primary_eye=none
+baseline=0
+horizontal_disparity_adjustment=0/0
+horizontal_field_of_view=0
 [/SIDE_DATA]
 [/STREAM]

tests/ref/fate/mov-spherical-mono

@@ -5,6 +5,9 @@ type=2D
 inverted=0
 view=packed
 primary_eye=none
+baseline=0
+horizontal_disparity_adjustment=0/0
+horizontal_field_of_view=0
 [/SIDE_DATA]
 [SIDE_DATA]
 side_data_type=Spherical Mapping