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videometa: Extend GstVideoGLTextureUploadMeta

Browse source 
https://bugzilla.gnome.org/show_bug.cgi?id=697112
This commit is contained in:
Sebastian Dröge 2013-04-17 10:35:22 +02:00
parent e96ca66c36
commit 74f6376c53
2 changed files with 67 additions and 14 deletions
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23
gst-libs/gst/video/gstvideometa.c
View file

@ -19,6 +19,8 @@
#include "gstvideometa.h"
#include <string.h>
static gboolean
gst_video_meta_transform (GstBuffer * dest, GstMeta * meta,
GstBuffer * buffer, GQuark type, gpointer data)
@ -430,6 +432,10 @@ gst_video_gl_texture_upload_meta_transform (GstBuffer * dest, GstMeta * meta,
if (!dmeta)
return FALSE;
dmeta->texture_orientation = smeta->texture_orientation;
dmeta->n_textures = smeta->n_textures;
memcpy (dmeta->texture_type, smeta->texture_type,
sizeof (smeta->texture_type[0] * 4));
dmeta->buffer = dest;
dmeta->upload = smeta->upload;
dmeta->user_data = smeta->user_data;
@ -475,13 +481,16 @@ gst_video_gl_texture_upload_meta_get_info (void)
*/
GstVideoGLTextureUploadMeta *
gst_buffer_add_video_gl_texture_upload_meta (GstBuffer * buffer,
GstVideoGLTextureUpload upload, gpointer user_data,
GBoxedCopyFunc user_data_copy, GBoxedFreeFunc user_data_free)
GstVideoGLTextureOrientation texture_orientation, guint n_textures,
GstVideoGLTextureType texture_type[4], GstVideoGLTextureUpload upload,
gpointer user_data, GBoxedCopyFunc user_data_copy,
GBoxedFreeFunc user_data_free)
{
GstVideoGLTextureUploadMeta *meta;
g_return_val_if_fail (buffer != NULL, NULL);
g_return_val_if_fail (upload != NULL, NULL);
g_return_val_if_fail (n_textures > 0 && n_textures < 5, NULL);
meta =
(GstVideoGLTextureUploadMeta *) gst_buffer_add_meta (buffer,
@ -490,6 +499,9 @@ gst_buffer_add_video_gl_texture_upload_meta (GstBuffer * buffer,
if (!meta)
return NULL;
meta->texture_orientation = texture_orientation;
meta->n_textures = n_textures;
memcpy (meta->texture_type, texture_type, sizeof (texture_type[0] * 4));
meta->buffer = buffer;
meta->upload = upload;
meta->user_data = user_data;
@ -502,8 +514,7 @@ gst_buffer_add_video_gl_texture_upload_meta (GstBuffer * buffer,
/**
* gst_video_gl_texture_upload_meta_upload:
* @meta: a #GstVideoGLTextureUploadMeta
* @format: the GL format of the texture, e.g. GL_RGBA
* @texture_id: the texture ID to upload to
* @texture_id: the texture IDs to upload to
*
* Uploads the buffer which owns the meta to a specific texture ID.
*
@ -511,9 +522,9 @@ gst_buffer_add_video_gl_texture_upload_meta (GstBuffer * buffer,
*/
gboolean
gst_video_gl_texture_upload_meta_upload (GstVideoGLTextureUploadMeta * meta,
guint format, guint texture_id)
guint texture_id[4])
{
g_return_val_if_fail (meta != NULL, FALSE);
return meta->upload (meta, format, texture_id);
return meta->upload (meta, texture_id);
}

58
gst-libs/gst/video/gstvideometa.h
View file

@ -140,22 +140,59 @@ typedef struct {
GstVideoInfo *out_info;
} GstVideoMetaTransform;
/**
* GstVideoGLTextureType:
* @GST_VIDEO_GL_TEXTURE_TYPE_LUMINANCE: Luminance texture, GL_LUMINANCE
* @GST_VIDEO_GL_TEXTURE_TYPE_LUMINANCE_ALPHA: Luminance-alpha texture, GL_LUMINANCE_ALPHA
* @GST_VIDEO_GL_TEXTURE_TYPE_RGB16: RGB 565 texture, GL_RGB
* @GST_VIDEO_GL_TEXTURE_TYPE_RGB: RGB texture, GL_RGB
* @GST_VIDEO_GL_TEXTURE_TYPE_RGBA: RGBA texture, GL_RGBA
* @GST_VIDEO_GL_TEXTURE_TYPE_R: R texture, GL_RED_EXT
* @GST_VIDEO_GL_TEXTURE_TYPE_RG: RG texture, GL_RG_EXT
*
* The GL texture type.
*/
typedef enum
{
GST_VIDEO_GL_TEXTURE_TYPE_LUMINANCE,
GST_VIDEO_GL_TEXTURE_TYPE_LUMINANCE_ALPHA,
GST_VIDEO_GL_TEXTURE_TYPE_RGB16,
GST_VIDEO_GL_TEXTURE_TYPE_RGB,
GST_VIDEO_GL_TEXTURE_TYPE_RGBA,
GST_VIDEO_GL_TEXTURE_TYPE_R,
GST_VIDEO_GL_TEXTURE_TYPE_RG
} GstVideoGLTextureType;
/** GstVideoGLTextureOrientation:
* @GST_VIDEO_GL_TEXTURE_ORIENTATION_X_NORMAL_Y_NORMAL: Top line first in memory, left row first
* @GST_VIDEO_GL_TEXTURE_ORIENTATION_X_NORMAL_Y_FLIP: Bottom line first in memory, left row first
* @GST_VIDEO_GL_TEXTURE_ORIENTATION_X_FLIP_Y_NORMAL: Top line first in memory, right row first
* @GST_VIDEO_GL_TEXTURE_ORIENTATION_X_FLIP_Y_FLIP: Bottom line first in memory, right row first
*
* The orientation of the GL texture.
*/
typedef enum
{
GST_VIDEO_GL_TEXTURE_ORIENTATION_X_NORMAL_Y_NORMAL,
GST_VIDEO_GL_TEXTURE_ORIENTATION_X_NORMAL_Y_FLIP,
GST_VIDEO_GL_TEXTURE_ORIENTATION_X_FLIP_Y_NORMAL,
GST_VIDEO_GL_TEXTURE_ORIENTATION_X_FLIP_Y_FLIP
} GstVideoGLTextureOrientation;
#define GST_VIDEO_GL_TEXTURE_UPLOAD_META_API_TYPE (gst_video_gl_texture_upload_meta_api_get_type())
#define GST_VIDEO_GL_TEXTURE_UPLOAD_META_INFO (gst_video_gl_texture_upload_meta_get_info())
typedef struct _GstVideoGLTextureUploadMeta GstVideoGLTextureUploadMeta;
typedef gboolean (*GstVideoGLTextureUpload) (GstVideoGLTextureUploadMeta *meta, guint format, guint texture_id);
typedef gboolean (*GstVideoGLTextureUpload) (GstVideoGLTextureUploadMeta *meta, guint texture_id[4]);
#define GST_CAPS_FEATURE_META_GST_VIDEO_GL_TEXTURE_UPLOAD_META "meta:GstVideoGLTextureUploadMeta"
/**
* GstVideoGLTextureUploadMeta:
* @meta: parent #GstMeta
* @buffer: the buffer of this meta
* @upload: the function to upload the buffer to a specific texture ID
* @user_data: user data for the implementor of @upload
* @user_data_copy: function to copy @user_data
* @user_data_free: function to free @user_data
* @texture_orientation: Orientation of the textures
* @n_textures: Number of textures that are generated
* @texture_type: Type of each texture
*
* Extra buffer metadata for uploading a buffer to an OpenGL texture
* ID. The caller of gst_video_gl_texture_upload_meta_upload() must
@ -166,6 +203,11 @@ typedef gboolean (*GstVideoGLTextureUpload) (GstVideoGLTextureUploadMeta *meta,
struct _GstVideoGLTextureUploadMeta {
GstMeta meta;
GstVideoGLTextureOrientation texture_orientation;
guint n_textures;
GstVideoGLTextureType texture_type[4];
/* <private> */
GstBuffer *buffer;
GstVideoGLTextureUpload upload;
@ -175,8 +217,8 @@ struct _GstVideoGLTextureUploadMeta {
};
#define gst_buffer_get_video_gl_texture_upload_meta(b) ((GstVideoGLTextureUploadMeta*)gst_buffer_get_meta((b),GST_VIDEO_GL_TEXTURE_UPLOAD_META_API_TYPE))
GstVideoGLTextureUploadMeta * gst_buffer_add_video_gl_texture_upload_meta (GstBuffer *buffer, GstVideoGLTextureUpload upload, gpointer user_data, GBoxedCopyFunc copy_user_data, GBoxedFreeFunc free_user_data);
gboolean gst_video_gl_texture_upload_meta_upload (GstVideoGLTextureUploadMeta *meta, guint format, guint texture_id);
GstVideoGLTextureUploadMeta * gst_buffer_add_video_gl_texture_upload_meta (GstBuffer *buffer, GstVideoGLTextureOrientation texture_orientation, guint n_textures, GstVideoGLTextureType texture_type[4], GstVideoGLTextureUpload upload, gpointer user_data, GBoxedCopyFunc user_data_copy, GBoxedFreeFunc user_data_free);
gboolean gst_video_gl_texture_upload_meta_upload (GstVideoGLTextureUploadMeta *meta, guint texture_id[4]);
GType gst_video_gl_texture_upload_meta_api_get_type (void);
const GstMetaInfo * gst_video_gl_texture_upload_meta_get_info (void);