diff options
| -rw-r--r-- | doc/indevs.texi | 10 | ||||
| -rw-r--r-- | libavdevice/x11grab.c | 2 | ||||
| -rw-r--r-- | libavdevice/xcbgrab.c | 2 |
3 files changed, 14 insertions, 0 deletions
diff --git a/doc/indevs.texi b/doc/indevs.texi index 82d3b22669..1a49293d31 100644 --- a/doc/indevs.texi +++ b/doc/indevs.texi @@ -1102,6 +1102,16 @@ It may be necessary to disable it for remote displays (legacy x11grab only). @end table +@subsection @var{grab_x} @var{grab_y} AVOption + +The syntax is: +@example +-grab_x @var{x_offset} -grab_y @var{y_offset} +@end example + +Set the grabing region coordinates. The are expressed as offset from the top left +corner of the X11 window. The default value is 0. + @section decklink The decklink input device provides capture capabilities for Blackmagic diff --git a/libavdevice/x11grab.c b/libavdevice/x11grab.c index 3a833eb27f..8a18830be0 100644 --- a/libavdevice/x11grab.c +++ b/libavdevice/x11grab.c @@ -657,6 +657,8 @@ static int x11grab_read_close(AVFormatContext *s1) #define OFFSET(x) offsetof(X11GrabContext, x) #define DEC AV_OPT_FLAG_DECODING_PARAM static const AVOption options[] = { + { "grab_x", "Initial x coordinate.", OFFSET(x_off), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, D }, + { "grab_y", "Initial y coordinate.", OFFSET(y_off), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, D }, { "draw_mouse", "draw the mouse pointer", OFFSET(draw_mouse), AV_OPT_TYPE_INT, {.i64 = 1}, 0, 1, DEC }, { "follow_mouse", "move the grabbing region when the mouse pointer reaches within specified amount of pixels to the edge of region", diff --git a/libavdevice/xcbgrab.c b/libavdevice/xcbgrab.c index 6a33c60eef..2750e22b01 100644 --- a/libavdevice/xcbgrab.c +++ b/libavdevice/xcbgrab.c @@ -81,6 +81,8 @@ typedef struct XCBGrabContext { static const AVOption options[] = { { "x", "Initial x coordinate.", OFFSET(x), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, D }, { "y", "Initial y coordinate.", OFFSET(y), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, D }, + { "grab_x", "Initial x coordinate.", OFFSET(x), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, D }, + { "grab_y", "Initial y coordinate.", OFFSET(y), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, D }, { "video_size", "A string describing frame size, such as 640x480 or hd720.", OFFSET(video_size), AV_OPT_TYPE_STRING, {.str = "vga" }, 0, 0, D }, { "framerate", "", OFFSET(framerate), AV_OPT_TYPE_STRING, {.str = "ntsc" }, 0, 0, D }, { "draw_mouse", "Draw the mouse pointer.", OFFSET(draw_mouse), AV_OPT_TYPE_INT, { .i64 = 1 }, 0, 1, D }, |