diff options
Diffstat (limited to 'common/recipes-multimedia/gstreamer/gst-plugins-good/0021-videocrop-support-cropping-interlaced-images.patch')
| -rw-r--r-- | common/recipes-multimedia/gstreamer/gst-plugins-good/0021-videocrop-support-cropping-interlaced-images.patch | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/common/recipes-multimedia/gstreamer/gst-plugins-good/0021-videocrop-support-cropping-interlaced-images.patch b/common/recipes-multimedia/gstreamer/gst-plugins-good/0021-videocrop-support-cropping-interlaced-images.patch new file mode 100644 index 0000000..7d66fe4 --- /dev/null +++ b/common/recipes-multimedia/gstreamer/gst-plugins-good/0021-videocrop-support-cropping-interlaced-images.patch @@ -0,0 +1,99 @@ +From b2975883315542cc9beead18a6bfe3bf1dab06b7 Mon Sep 17 00:00:00 2001 +From: Kazunori Kobayashi <kkobayas@igel.co.jp> +Date: Tue, 16 Oct 2012 16:42:17 +0900 +Subject: [PATCH 21/31] videocrop: support cropping interlaced images + +This patch supports it by adjusting the subbuffer offset and +chroma_byte_offset in caps. +--- + gst/videocrop/gstvideocrop.c | 43 ++++++++++++++++++++++++++++++++++++------ + gst/videocrop/gstvideocrop.h | 2 ++ + 2 files changed, 39 insertions(+), 6 deletions(-) + +diff --git a/gst/videocrop/gstvideocrop.c b/gst/videocrop/gstvideocrop.c +index dbebcfa..4d2a027 100644 +--- a/gst/videocrop/gstvideocrop.c ++++ b/gst/videocrop/gstvideocrop.c +@@ -679,20 +679,44 @@ gst_video_crop_transform_caps (GstBaseTransform * trans, + guint ratio_y_c; + GstStructure *structure; + gint tile_height; ++ gboolean interlaced; ++ const gchar *layout; ++ ++ structure = gst_caps_get_structure (caps, 0); ++ if (gst_structure_get_boolean (structure, "interlaced", &interlaced) && ++ (interlaced == TRUE) && ++ ((layout = ++ gst_structure_get_string (structure, "field-layout")) != NULL) ++ && (strcmp (layout, "sequential") == 0)) ++ vcrop->interlaced = TRUE; ++ else ++ vcrop->interlaced = FALSE; + + rowstride = img_details.stride; + /* Y plane / UV plane */ + ratio_y_c = img_details.uv_off / (img_details.size - img_details.uv_off); +- delta_chroma_offs = rowstride * vcrop->crop_top / ratio_y_c; ++ if (vcrop->interlaced) ++ delta_chroma_offs = rowstride * vcrop->crop_top / ratio_y_c / 2; ++ else ++ delta_chroma_offs = rowstride * vcrop->crop_top / ratio_y_c; + + /* set tile boudary for T/L addressing */ +- structure = gst_caps_get_structure (caps, 0); + if (gst_structure_get_int (structure, "tile-height", &tile_height)) { ++ gint tile_y_offs, tile_c_offs; ++ ++ if (vcrop->interlaced) { ++ tile_y_offs = vcrop->crop_top / 2 % tile_height; ++ tile_c_offs = vcrop->crop_top / ratio_y_c / 2 % tile_height; ++ } else { ++ tile_y_offs = vcrop->crop_top % tile_height; ++ tile_c_offs = vcrop->crop_top / ratio_y_c % tile_height; ++ } ++ + gst_structure_set (new_structure, "tile_boundary_y_offset", +- G_TYPE_INT, vcrop->crop_top % tile_height, NULL); ++ G_TYPE_INT, tile_y_offs, NULL); + + gst_structure_set (new_structure, "tile_boundary_c_offset", +- G_TYPE_INT, vcrop->crop_top / ratio_y_c % tile_height, NULL); ++ G_TYPE_INT, tile_c_offs, NULL); + } + } else { + rowstride = 0; +@@ -830,8 +854,15 @@ gst_video_crop_prepare_output_buffer (GstBaseTransform * trans, + sub_offset = (vcrop->crop_top * vcrop->in.stride) + + (ROUND_DOWN_2 (vcrop->crop_left) * vcrop->in.bytes_per_pixel); + } else if (vcrop->in.packing == VIDEO_CROP_PIXEL_FORMAT_SEMI_PLANAR) { +- sub_offset = (vcrop->crop_top * vcrop->in.stride) + +- ROUND_DOWN_2 (vcrop->crop_left); ++ GstStructure *structure; ++ ++ structure = gst_caps_get_structure (caps, 0); ++ if (vcrop->interlaced) ++ sub_offset = (vcrop->crop_top / 2 * vcrop->in.stride) + ++ ROUND_DOWN_2 (vcrop->crop_left); ++ else ++ sub_offset = (vcrop->crop_top * vcrop->in.stride) + ++ ROUND_DOWN_2 (vcrop->crop_left); + } else { + GST_LOG_OBJECT (vcrop, + "can't do zero-copy cropping except for packed format"); +diff --git a/gst/videocrop/gstvideocrop.h b/gst/videocrop/gstvideocrop.h +index 1534b3d..a72cacb 100644 +--- a/gst/videocrop/gstvideocrop.h ++++ b/gst/videocrop/gstvideocrop.h +@@ -83,6 +83,8 @@ struct _GstVideoCrop + + /* query for rowstride */ + GstQueryType query_type_stride; ++ ++ gboolean interlaced; + }; + + struct _GstVideoCropClass +-- +1.7.9.5 + |