diff options
Diffstat (limited to 'gst/videocrop/gstvideocrop.c')
| -rw-r--r-- | gst/videocrop/gstvideocrop.c | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/gst/videocrop/gstvideocrop.c b/gst/videocrop/gstvideocrop.c index 082ca1184..a6b4562d8 100644 --- a/gst/videocrop/gstvideocrop.c +++ b/gst/videocrop/gstvideocrop.c @@ -102,6 +102,8 @@ enum GST_VIDEO_CAPS_YUV ("Y800") ";" \ GST_VIDEO_CAPS_YUV ("I420") ";" \ GST_VIDEO_CAPS_YUV ("YV12") ";" \ + GST_VIDEO_CAPS_YUV ("NV12") ";" \ + GST_VIDEO_CAPS_YUV ("NV21") ";" \ GST_VIDEO_CAPS_RGB_16 ";" \ GST_VIDEO_CAPS_RGB_15 ";" \ GST_VIDEO_CAPS_GRAY @@ -327,6 +329,15 @@ gst_video_crop_get_image_details_from_caps (GstVideoCrop * vcrop, details->size = details->v_off + details->v_stride * (GST_ROUND_UP_2 (height) / 2); break; + case GST_MAKE_FOURCC ('N', 'V', '1', '2'): + case GST_MAKE_FOURCC ('N', 'V', '2', '1'): + details->packing = VIDEO_CROP_PIXEL_FORMAT_SEMI_PLANAR; + details->y_stride = GST_ROUND_UP_4 (width); + details->uv_stride = details->y_stride; + details->y_off = 0; + details->uv_off = details->y_stride * GST_ROUND_UP_2 (height); + details->size = details->y_stride * GST_ROUND_UP_2 (height) * 3 / 2; + break; } default: goto unknown_format; @@ -480,6 +491,42 @@ gst_video_crop_transform_planar (GstVideoCrop * vcrop, GstBuffer * inbuf, } } +static void +gst_video_crop_transform_semi_planar (GstVideoCrop * vcrop, GstBuffer * inbuf, + GstBuffer * outbuf) +{ + guint8 *y_out, *uv_out; + guint8 *y_in, *uv_in; + guint i, dx; + + /* Y plane */ + y_in = GST_BUFFER_DATA (inbuf); + y_out = GST_BUFFER_DATA (outbuf); + + y_in += vcrop->crop_top * vcrop->in.y_stride + vcrop->crop_left; + dx = vcrop->out.width; + + for (i = 0; i < vcrop->out.height; ++i) { + memcpy (y_out, y_in, dx); + y_in += vcrop->in.y_stride; + y_out += vcrop->out.y_stride; + } + + /* UV plane */ + uv_in = GST_BUFFER_DATA (inbuf) + vcrop->in.uv_off; + uv_out = GST_BUFFER_DATA (outbuf) + vcrop->out.uv_off; + + uv_in += (vcrop->crop_top / 2) * vcrop->in.uv_stride; + uv_in += GST_ROUND_DOWN_2 (vcrop->crop_left); + dx = GST_ROUND_UP_2 (vcrop->out.width); + + for (i = 0; i < GST_ROUND_UP_2 (vcrop->out.height) / 2; i++) { + memcpy (uv_out, uv_in, dx); + uv_in += vcrop->in.uv_stride; + uv_out += vcrop->out.uv_stride; + } +} + static GstFlowReturn gst_video_crop_transform (GstBaseTransform * trans, GstBuffer * inbuf, GstBuffer * outbuf) @@ -496,6 +543,9 @@ gst_video_crop_transform (GstBaseTransform * trans, GstBuffer * inbuf, case VIDEO_CROP_PIXEL_FORMAT_PLANAR: gst_video_crop_transform_planar (vcrop, inbuf, outbuf); break; + case VIDEO_CROP_PIXEL_FORMAT_SEMI_PLANAR: + gst_video_crop_transform_semi_planar (vcrop, inbuf, outbuf); + break; default: g_assert_not_reached (); } |