From: Jun Zhao <barryjz...@tencent.com>
support regions of interest sidedata
Signed-off-by: Jun Zhao <barryjz...@tencent.com>
---
libavfilter/vf_showinfo.c | 33 +++++++++++++++++++++++++++++++++
1 files changed, 33 insertions(+), 0 deletions(-)
diff --git a/libavfilter/vf_showinfo.c b/libavfilter/vf_showinfo.c
index e41c330..d0e140f 100644
--- a/libavfilter/vf_showinfo.c
+++ b/libavfilter/vf_showinfo.c
@@ -111,6 +111,36 @@ static void dump_stereo3d(AVFilterContext *ctx,
AVFrameSideData *sd)
av_log(ctx, AV_LOG_INFO, " (inverted)");
}
+static void dump_roi(AVFilterContext *ctx, AVFrameSideData *sd)
+{
+ AVRegionOfInterest *roi;
+ int nb_rois;
+
+ if (sd->size < sizeof(*roi)) {
+ av_log(ctx, AV_LOG_INFO, "invalid data");
+ return;
+ }
+
+ roi = (AVRegionOfInterest *)sd->data;
+ if (roi->self_size == 0 || sd->size % roi->self_size != 0) {
+ av_log(ctx, AV_LOG_INFO, "invalid ROI side data");
+ return;
+ }
+ nb_rois = sd->size / roi->self_size;
+
+ av_log(ctx, AV_LOG_INFO, "Regions Of Interest(RoI) information: ");
+ for (int index = 0; index < nb_rois; index++) {
+ av_log(ctx, AV_LOG_INFO, "index: %d, region: (%d %d)/(%d %d), qp
offset: %d/%d",
+ index, roi->left, roi->top, roi->right, roi->bottom,
roi->qoffset.num, roi->qoffset.den);
+
+ if (roi->self_size == 0)
+ av_log(ctx, AV_LOG_INFO,
+ "AVRegionOfInterest.self_size must be set to
sizeof(AVRegionOfInterest).\n");
+
+ roi = (AVRegionOfInterest *)((char *)roi + roi->self_size);
+ }
+}
+
static void dump_color_property(AVFilterContext *ctx, AVFrame *frame)
{
const char *color_range_str = av_color_range_name(frame->color_range);
@@ -246,6 +276,9 @@ static int filter_frame(AVFilterLink *inlink, AVFrame
*frame)
case AV_FRAME_DATA_AFD:
av_log(ctx, AV_LOG_INFO, "afd: value of %"PRIu8, sd->data[0]);
break;
+ case AV_FRAME_DATA_REGIONS_OF_INTEREST:
+ dump_roi(ctx, sd);
+ break;
default:
av_log(ctx, AV_LOG_WARNING, "unknown side data type %d (%d bytes)",
sd->type, sd->size);
--
1.7.1
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