---
libavfilter/vf_showinfo.c | 32 ++++++++++++++++++++++++++++++++
1 file changed, 32 insertions(+)
diff --git a/libavfilter/vf_showinfo.c b/libavfilter/vf_showinfo.c
index 031d8fe..71adc8d 100644
--- a/libavfilter/vf_showinfo.c
+++ b/libavfilter/vf_showinfo.c
@@ -25,6 +25,7 @@
#include <inttypes.h>
#include "libavutil/adler32.h"
+#include "libavutil/display.h"
#include "libavutil/imgutils.h"
#include "libavutil/internal.h"
#include "libavutil/pixdesc.h"
@@ -68,6 +69,34 @@ static void dump_stereo3d(AVFilterContext *ctx,
AVFrameSideData *sd)
av_log(ctx, AV_LOG_INFO, " (inverted)");
}
+static void dump_transformation(AVFilterContext *ctx, AVFrameSideData *sd)
+{
+ AVRational scale, translation;
+ int rotation, hflip, vflip;
+ av_log(ctx, AV_LOG_INFO, "display transformation: ");
+
+ rotation = av_display_rotation_angle(sd->data);
+ if (rotation)
+ av_log(ctx, AV_LOG_INFO, "rotation of %d degrees ", rotation);
+
+ hflip = av_display_hflip(sd->data);
+ if (hflip)
+ av_log(ctx, AV_LOG_INFO, "horizontal flip ");
+
+ vflip = av_display_vflip(sd->data);
+ if (vflip)
+ av_log(ctx, AV_LOG_INFO, "vertical flip ");
+
+ translation = av_display_translation_factor(sd->data);
+ if (translation.num != 0 || translation.den != 0)
+ av_log(ctx, AV_LOG_INFO,
+ "translation of %d:%d ", translation.num, translation.den);
+
+ scale = av_display_scale_factor(sd->data);
+ if (scale.num != 1 || scale.den != 1)
+ av_log(ctx, AV_LOG_INFO, "scale of %d:%d", scale.num, scale.den);
+}
+
static int filter_frame(AVFilterLink *inlink, AVFrame *frame)
{
AVFilterContext *ctx = inlink->dst;
@@ -117,6 +146,9 @@ static int filter_frame(AVFilterLink *inlink, AVFrame
*frame)
case AV_FRAME_DATA_STEREO3D:
dump_stereo3d(ctx, sd);
break;
+ case AV_FRAME_DATA_DISPLAYMATRIX:
+ dump_transformation(ctx, sd);
+ break;
default:
av_log(ctx, AV_LOG_WARNING, "unknown side data type %d (%d bytes)",
sd->type, sd->size);
--
1.8.3.4 (Apple Git-47)
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