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plugins: track video texture size changes.

Browse source 
Sync video texture sizes to GstVideoGLTextureUploadMeta private date,
i.e. GstVaapiVideoMetaTexture, on a regular basis. In particular, we
now update the texture size from the GstVideoMeta, if any, or reset
to some defaults otherwise.
This commit is contained in:
Gwenole Beauchesne 2014-12-09 11:46:58 +01:00
parent 9aa5eac5e3
commit 44013fdaf0
1 changed files with 59 additions and 5 deletions
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64
gst/vaapi/gstvaapivideometa_texture.c
View file

@ -33,6 +33,8 @@
#include <gst/vaapi/gstvaapitexture_glx.h>
#endif
#define DEFAULT_FORMAT GST_VIDEO_FORMAT_RGBA
#if GST_CHECK_VERSION(1,1,0) && USE_GLX
#include "gstvaapivideometa_texture.h"
@ -40,8 +42,48 @@
struct _GstVaapiVideoMetaTexture
{
GstVaapiTexture *texture;
GstVideoGLTextureType texture_type;
guint gl_format;
guint width;
guint height;
};
static gboolean
meta_texture_ensure_format (GstVaapiVideoMetaTexture * meta,
GstVideoFormat format)
{
switch (format) {
case GST_VIDEO_FORMAT_RGBA:
meta->gl_format = GL_RGBA;
meta->texture_type = GST_VIDEO_GL_TEXTURE_TYPE_RGBA;
break;
default:
goto error_unsupported_format;
}
return TRUE;
/* ERRORS */
error_unsupported_format:
GST_ERROR ("unsupported texture format %s",
gst_video_format_to_string (format));
return FALSE;
}
static void
meta_texture_ensure_size_from_buffer (GstVaapiVideoMetaTexture * meta,
GstBuffer * buffer)
{
GstVideoMeta *vmeta;
if (!buffer || !(vmeta = gst_buffer_get_video_meta (buffer))) {
meta->width = 0;
meta->height = 0;
} else {
meta->width = vmeta->width;
meta->height = vmeta->height;
}
}
static void
meta_texture_free (GstVaapiVideoMetaTexture * meta)
{
@ -62,6 +104,8 @@ meta_texture_new (void)
return NULL;
meta->texture = NULL;
meta_texture_ensure_format (meta, DEFAULT_FORMAT);
meta_texture_ensure_size_from_buffer (meta, NULL);
return meta;
}
@ -74,6 +118,10 @@ meta_texture_copy (GstVaapiVideoMetaTexture * meta)
if (!copy)
return NULL;
copy->texture_type = meta->texture_type;
copy->gl_format = meta->gl_format;
copy->width = meta->width;
copy->height = meta->height;
gst_vaapi_texture_replace (&copy->texture, meta->texture);
return copy;
}
@ -101,7 +149,7 @@ gst_vaapi_texture_upload (GstVideoGLTextureUploadMeta * meta,
/* FIXME: should we assume target? */
GstVaapiTexture *const texture =
gst_vaapi_texture_glx_new_wrapped (dpy, texture_id[0],
GL_TEXTURE_2D, GL_RGBA);
GL_TEXTURE_2D, meta_texture->gl_format);
gst_vaapi_texture_replace (&meta_texture->texture, texture);
if (!texture)
return FALSE;
@ -116,7 +164,6 @@ gboolean
gst_buffer_add_texture_upload_meta (GstBuffer * buffer)
{
GstVideoGLTextureUploadMeta *meta = NULL;
GstVideoGLTextureType tex_type[] = { GST_VIDEO_GL_TEXTURE_TYPE_RGBA };
GstVaapiVideoMetaTexture *meta_texture;
if (!buffer)
@ -126,9 +173,10 @@ gst_buffer_add_texture_upload_meta (GstBuffer * buffer)
if (!meta_texture)
return FALSE;
meta_texture_ensure_size_from_buffer (meta_texture, buffer);
meta = gst_buffer_add_video_gl_texture_upload_meta (buffer,
GST_VIDEO_GL_TEXTURE_ORIENTATION_X_NORMAL_Y_NORMAL,
1, tex_type, gst_vaapi_texture_upload,
1, &meta_texture->texture_type, gst_vaapi_texture_upload,
meta_texture, (GBoxedCopyFunc) meta_texture_copy,
(GBoxedFreeFunc) meta_texture_free);
if (!meta)
@ -143,7 +191,13 @@ error:
gboolean
gst_buffer_ensure_texture_upload_meta (GstBuffer * buffer)
{
return gst_buffer_get_video_gl_texture_upload_meta (buffer) ||
gst_buffer_add_texture_upload_meta (buffer);
GstVideoGLTextureUploadMeta *const meta =
gst_buffer_get_video_gl_texture_upload_meta (buffer);
if (meta) {
meta_texture_ensure_size_from_buffer (meta->user_data, buffer);
return TRUE;
}
return gst_buffer_add_texture_upload_meta (buffer);
}
#endif