diff options
Diffstat (limited to 'src/gstreamer/gstlibcamera-utils.cpp')
| -rw-r--r-- | src/gstreamer/gstlibcamera-utils.cpp | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/src/gstreamer/gstlibcamera-utils.cpp b/src/gstreamer/gstlibcamera-utils.cpp index 2edebba0..a548b0c1 100644 --- a/src/gstreamer/gstlibcamera-utils.cpp +++ b/src/gstreamer/gstlibcamera-utils.cpp @@ -599,6 +599,43 @@ gst_task_resume(GstTask *task) } #endif +#if !GST_CHECK_VERSION(1, 22, 0) +/* + * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu> + * Library <2002> Ronald Bultje <rbultje@ronald.bitfreak.net> + * Copyright (C) <2007> David A. Schleef <ds@schleef.org> + */ +/* + * This function has been imported directly from the gstreamer project to + * support backwards compatibility and should be removed when the older version + * is no longer supported. + */ +gint gst_video_format_info_extrapolate_stride(const GstVideoFormatInfo *finfo, gint plane, gint stride) +{ + gint estride; + gint comp[GST_VIDEO_MAX_COMPONENTS]; + gint i; + + /* There is nothing to extrapolate on first plane. */ + if (plane == 0) + return stride; + + gst_video_format_info_component(finfo, plane, comp); + + /* + * For now, all planar formats have a single component on first plane, but + * if there was a planar format with more, we'd have to make a ratio of the + * number of component on the first plane against the number of component on + * the current plane. + */ + estride = 0; + for (i = 0; i < GST_VIDEO_MAX_COMPONENTS && comp[i] >= 0; i++) + estride += GST_VIDEO_FORMAT_INFO_SCALE_WIDTH(finfo, comp[i], stride); + + return estride; +} +#endif + G_LOCK_DEFINE_STATIC(cm_singleton_lock); static std::weak_ptr<CameraManager> cm_singleton_ptr; |