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video: add macros checking for GST_VIDEO_BUFFER_FLAG_TOP/BOTTOM_FIELD flags

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The GST_VIDEO_BUFFER_FLAG_TOP_FIELD flag is a superset of
GST_VIDEO_BUFFER_FLAG_BOTTOM_FIELD as they are defined using other
flags. As a result we can't use GST_BUFFER_FLAG_IS_SET() to check for
those flags.
This commit is contained in:
Guillaume Desmottes 2020-02-06 14:35:47 +05:30 committed by Olivier Crête
parent 19f27f94ee
commit 26f386ce8b
2 changed files with 47 additions and 0 deletions
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22
gst-libs/gst/video/video-frame.h
View file

@ -173,9 +173,11 @@ gboolean gst_video_frame_copy_plane (GstVideoFrame *dest, const GstVideoFr
* @GST_VIDEO_BUFFER_FLAG_TOP_FIELD: The video frame has the top field only. This is the
* same as GST_VIDEO_BUFFER_FLAG_TFF |
* GST_VIDEO_BUFFER_FLAG_ONEFIELD (Since: 1.16).
* Use GST_VIDEO_BUFFER_IS_TOP_FIELD() to check for this flag.
* @GST_VIDEO_BUFFER_FLAG_BOTTOM_FIELD: The video frame has the bottom field only. This is
* the same as GST_VIDEO_BUFFER_FLAG_ONEFIELD
* (GST_VIDEO_BUFFER_FLAG_TFF flag unset) (Since: 1.16).
* Use GST_VIDEO_BUFFER_IS_BOTTOM_FIELD() to check for this flag.
* @GST_VIDEO_BUFFER_FLAG_MARKER: The #GstBuffer contains the end of a video field or frame
* boundary such as the last subframe or packet (Since: 1.18).
* @GST_VIDEO_BUFFER_FLAG_LAST: Offset to define more flags
@ -204,6 +206,26 @@ typedef enum {
GST_VIDEO_BUFFER_FLAG_LAST = (GST_BUFFER_FLAG_LAST << 8)
} GstVideoBufferFlags;
/* GST_VIDEO_BUFFER_FLAG_TOP_FIELD is a subset of
* GST_VIDEO_BUFFER_FLAG_BOTTOM_FIELD so needs to be checked accordingly. */
#define _GST_VIDEO_BUFFER_FLAG_FIELD_MASK GST_VIDEO_BUFFER_FLAG_TOP_FIELD
/**
* GST_VIDEO_BUFFER_IS_TOP_FIELD:
* @buf: a #GstBuffer
*
* Check if GST_VIDEO_BUFFER_FLAG_TOP_FIELD is set on @buf (Since: 1.18).
*/
#define GST_VIDEO_BUFFER_IS_TOP_FIELD(buf) ((GST_BUFFER_FLAGS (buf) & _GST_VIDEO_BUFFER_FLAG_FIELD_MASK) == GST_VIDEO_BUFFER_FLAG_TOP_FIELD)
/**
* GST_VIDEO_BUFFER_IS_BOTTOM_FIELD:
* @buf: a #GstBuffer
*
* Check if GST_VIDEO_BUFFER_FLAG_BOTTOM_FIELD is set on @buf (Since: 1.18).
*/
#define GST_VIDEO_BUFFER_IS_BOTTOM_FIELD(buf) ((GST_BUFFER_FLAGS (buf) & _GST_VIDEO_BUFFER_FLAG_FIELD_MASK) == GST_VIDEO_BUFFER_FLAG_BOTTOM_FIELD)
/**
* GstVideoFrameMapFlags:
* @GST_VIDEO_FRAME_MAP_FLAG_NO_REF: Don't take another reference of the buffer and store it in

25
tests/check/libs/video.c
View file

@ -3747,6 +3747,30 @@ GST_START_TEST (test_video_meta_align)
GST_END_TEST;
GST_START_TEST (test_video_flags)
{
GstBuffer *buf;
buf = gst_buffer_new ();
fail_unless (!GST_VIDEO_BUFFER_IS_TOP_FIELD (buf));
fail_unless (!GST_VIDEO_BUFFER_IS_BOTTOM_FIELD (buf));
gst_buffer_unref (buf);
buf = gst_buffer_new ();
GST_BUFFER_FLAG_SET (buf, GST_VIDEO_BUFFER_FLAG_TOP_FIELD);
fail_unless (GST_VIDEO_BUFFER_IS_TOP_FIELD (buf));
fail_unless (!GST_VIDEO_BUFFER_IS_BOTTOM_FIELD (buf));
gst_buffer_unref (buf);
buf = gst_buffer_new ();
GST_BUFFER_FLAG_SET (buf, GST_VIDEO_BUFFER_FLAG_BOTTOM_FIELD);
fail_unless (!GST_VIDEO_BUFFER_IS_TOP_FIELD (buf));
fail_unless (GST_VIDEO_BUFFER_IS_BOTTOM_FIELD (buf));
gst_buffer_unref (buf);
}
GST_END_TEST;
static Suite *
video_suite (void)
{
@ -3797,6 +3821,7 @@ video_suite (void)
tcase_add_test (tc_chain, test_video_format_info_plane_to_components);
tcase_add_test (tc_chain, test_video_info_align);
tcase_add_test (tc_chain, test_video_meta_align);
tcase_add_test (tc_chain, test_video_flags);
return s;
}