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| author | Tim-Philipp Müller <tim.muller@collabora.co.uk> | 2011-11-12 14:59:35 +0000 |
|---|---|---|
| committer | Tim-Philipp Müller <tim.muller@collabora.co.uk> | 2011-12-05 15:37:02 +0000 |
| commit | 6630236af4e7ab3dfbce2265c7ad7ff9b59c302c (patch) | |
| tree | d7e1b3469c0190d341335d91bc9237128d61b674 /win32 | |
| parent | a7a3f969b306c1747972f5e662fd4b186cd6ecaa (diff) | |
video: add video overlay composition API for subtitles
Basic API to attach overlay rectangles to buffers,
or blend them directly onto raw video buffers.
To be used primarily for things like subtitles or
logo overlays, not meant to replace videomixer.
Allows us to associate subtitle overlays with
non-raw video surface buffers, so that subtitles
are not lost and can instead be rendered later
when those surfaces are displayed or converted,
whilst re-using all the existing overlay plugins
and not having to teach them about our special
video surfaces. Could also have been made part
of the surface buffer abstraction of course, but
a secondary goal was to consolidate the blending
code for raw video into libgstvideo, and this
kind of API allows us to do both in a way that's
minimally invasive to existing elements, and at
the same time is fairly intuitive.
More features and extensions like the ability to
pass the source data or text/markup directly will
be added later.
https://bugzilla.gnome.org/show_bug.cgi?id=665080
API: gst_video_buffer_get_overlay_composition()
API: gst_video_buffer_set_overlay_composition()
API: gst_video_overlay_composition_new()
API: gst_video_overlay_composition_add_rectangle()
API: gst_video_overlay_composition_n_rectangles()
API: gst_video_overlay_composition_get_rectangle()
API: gst_video_overlay_composition_make_writable()
API: gst_video_overlay_composition_copy()
API: gst_video_overlay_composition_ref()
API: gst_video_overlay_composition_unref()
API: gst_video_overlay_composition_blend()
API: gst_video_overlay_rectangle_new_argb()
API: gst_video_overlay_rectangle_get_pixels_argb()
API: gst_video_overlay_rectangle_get_pixels_unscaled_argb()
API: gst_video_overlay_rectangle_get_render_rectangle()
API: gst_video_overlay_rectangle_set_render_rectangle()
API: gst_video_overlay_rectangle_copy()
API: gst_video_overlay_rectangle_ref()
API: gst_video_overlay_rectangle_unref()
Diffstat (limited to 'win32')
| -rw-r--r-- | win32/common/libgstvideo.def | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/win32/common/libgstvideo.def b/win32/common/libgstvideo.def index 4e2e59299..fee972a2f 100644 --- a/win32/common/libgstvideo.def +++ b/win32/common/libgstvideo.def @@ -1,4 +1,6 @@ EXPORTS + gst_video_buffer_get_overlay_composition + gst_video_buffer_set_overlay_composition gst_video_calculate_display_ratio gst_video_convert_frame gst_video_convert_frame_async @@ -33,6 +35,21 @@ EXPORTS gst_video_frame_rate gst_video_get_size gst_video_get_size_from_caps + gst_video_overlay_composition_add_rectangle + gst_video_overlay_composition_blend + gst_video_overlay_composition_copy + gst_video_overlay_composition_get_rectangle + gst_video_overlay_composition_get_type + gst_video_overlay_composition_make_writable + gst_video_overlay_composition_n_rectangles + gst_video_overlay_composition_new + gst_video_overlay_rectangle_copy + gst_video_overlay_rectangle_get_pixels_argb + gst_video_overlay_rectangle_get_pixels_unscaled_argb + gst_video_overlay_rectangle_get_render_rectangle + gst_video_overlay_rectangle_get_type + gst_video_overlay_rectangle_new_argb + gst_video_overlay_rectangle_set_render_rectangle gst_video_parse_caps_chroma_site gst_video_parse_caps_color_matrix gst_video_parse_caps_framerate |