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textoverlay: Support NV21 too and minor cleanups

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This commit is contained in:
Sebastian Dröge 2010-08-24 10:12:53 +02:00
parent c30ad57e86
commit faebf174fb
1 changed files with 13 additions and 15 deletions
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28
ext/pango/gsttextoverlay.c
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@ -186,8 +186,7 @@ static GstStaticPadTemplate src_template_factory =
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_VIDEO_CAPS_BGRx ";"
GST_VIDEO_CAPS_xRGB ";"
GST_VIDEO_CAPS_YUV ("{I420, UYUV, NV12}"))
GST_VIDEO_CAPS_xRGB ";" GST_VIDEO_CAPS_YUV ("{I420, UYUV, NV12, NV21}"))
);
static GstStaticPadTemplate video_sink_template_factory =
@ -195,8 +194,7 @@ static GstStaticPadTemplate video_sink_template_factory =
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_VIDEO_CAPS_BGRx ";"
GST_VIDEO_CAPS_xRGB ";"
GST_VIDEO_CAPS_YUV ("{I420, UYUV, NV12}"))
GST_VIDEO_CAPS_xRGB ";" GST_VIDEO_CAPS_YUV ("{I420, UYUV, NV12, NV21}"))
);
static GstStaticPadTemplate text_sink_template_factory =
@ -1362,12 +1360,12 @@ gst_text_overlay_render_pangocairo (GstTextOverlay * overlay,
#define BOX_YPAD 6
static inline void
gst_text_overlay_shade_I420_y (GstTextOverlay * overlay, guchar * dest,
gst_text_overlay_shade_Y (GstTextOverlay * overlay, guchar * dest,
gint x0, gint x1, gint y0, gint y1)
{
gint i, j, dest_stride;
dest_stride = gst_video_format_get_row_stride (GST_VIDEO_FORMAT_I420, 0,
dest_stride = gst_video_format_get_row_stride (overlay->format, 0,
overlay->width);
x0 = CLAMP (x0 - BOX_XPAD, 0, overlay->width);
@ -1445,7 +1443,7 @@ gst_text_overlay_shade_xRGB (GstTextOverlay * overlay, guchar * dest,
*/
static inline void
gst_text_overlay_blit_NV12 (GstTextOverlay * overlay,
gst_text_overlay_blit_NV12_NV21 (GstTextOverlay * overlay,
guint8 * yuv_pixels, gint xpos, gint ypos)
{
int y_stride, uv_stride;
@ -1455,11 +1453,10 @@ gst_text_overlay_blit_NV12 (GstTextOverlay * overlay,
w = overlay->width;
h = overlay->height;
y_stride = gst_video_format_get_row_stride (GST_VIDEO_FORMAT_NV12, 0, w);
uv_stride = gst_video_format_get_row_stride (GST_VIDEO_FORMAT_NV12, 1, w);
u_offset =
gst_video_format_get_component_offset (GST_VIDEO_FORMAT_NV12, 1, w, h);
v_offset = u_offset + 1;
y_stride = gst_video_format_get_row_stride (overlay->format, 0, w);
uv_stride = gst_video_format_get_row_stride (overlay->format, 1, w);
u_offset = gst_video_format_get_component_offset (overlay->format, 1, w, h);
v_offset = gst_video_format_get_component_offset (overlay->format, 2, w, h);
gst_text_overlay_blit_1 (overlay, yuv_pixels, xpos, ypos, overlay->text_image,
y_stride);
@ -1723,8 +1720,8 @@ gst_text_overlay_push_frame (GstTextOverlay * overlay, GstBuffer * video_frame)
switch (overlay->format) {
case GST_VIDEO_FORMAT_I420:
case GST_VIDEO_FORMAT_NV12:
/* NV12 is similar enough for same function to cope */
gst_text_overlay_shade_I420_y (overlay,
case GST_VIDEO_FORMAT_NV21:
gst_text_overlay_shade_Y (overlay,
GST_BUFFER_DATA (video_frame), xpos, xpos + overlay->image_width,
ypos, ypos + overlay->image_height);
break;
@ -1758,7 +1755,8 @@ gst_text_overlay_push_frame (GstTextOverlay * overlay, GstBuffer * video_frame)
GST_BUFFER_DATA (video_frame), xpos, ypos);
break;
case GST_VIDEO_FORMAT_NV12:
gst_text_overlay_blit_NV12 (overlay,
case GST_VIDEO_FORMAT_NV21:
gst_text_overlay_blit_NV12_NV21 (overlay,
GST_BUFFER_DATA (video_frame), xpos, ypos);
break;
case GST_VIDEO_FORMAT_UYVY: