Write the scene render frame range to image/video files

This is useful to create a mapping from the frame range in the video to
frame index in the blend file.

Part of: https://developer.blender.org/D2273

Reviewed by: @campbellbarton

1 files changed, 17 insertions, 0 deletions

diff --git a/source/blender/blenkernel/intern/image.c b/source/blender/blenkernel/intern/image.c
index 34891d95669..6abffd83a4d 100644
--- a/source/blender/blenkernel/intern/image.c
+++ b/source/blender/blenkernel/intern/image.c
@@ -1711,6 +1711,15 @@ static void stampdata(Scene *scene, Object *camera, StampData *stamp_data, int d
 		stamp_data->frame[0] = '\0';
 	}
 
+	if (scene->r.stamp & R_STAMP_FRAME_RANGE) {
+		BLI_snprintf(stamp_data->frame_range, sizeof(stamp_data->frame),
+		             do_prefix ? "Frame Range %d:%d" : "%d:%d",
+		             scene->r.sfra, scene->r.efra);
+	}
+	else {
+		stamp_data->frame_range[0] = '\0';
+	}
+
 	if (use_dynamic && scene->r.stamp & R_STAMP_CAMERA) {
 		BLI_snprintf(stamp_data->camera, sizeof(stamp_data->camera), do_prefix ? "Camera %s" : "%s", camera ? camera->id.name + 2 : "<none>");
 	}
@@ -1771,6 +1780,13 @@ static void stampdata(Scene *scene, Object *camera, StampData *stamp_data, int d
 			stamp_data->memory[0] = '\0';
 		}
 	}
+	if (scene->r.stamp & R_STAMP_FRAME_RANGE) {
+		BLI_snprintf(stamp_data->frame_range, sizeof(stamp_data->frame_range),
+		             do_prefix ? "Frame Range %d:%d" : "%d:%d", scene->r.sfra, scene->r.efra);
+	}
+	else {
+		stamp_data->frame_range[0] = '\0';
+	}
 }
 
 /* Will always add prefix. */
@@ -2151,6 +2167,7 @@ void BKE_stamp_info_callback(void *data, struct StampData *stamp_data, StampCall
 	CALL(marker, "Marker");
 	CALL(time, "Time");
 	CALL(frame, "Frame");
+	CALL(frame_range, "FrameRange");
 	CALL(camera, "Camera");
 	CALL(cameralens, "Lens");
 	CALL(scene, "Scene");