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plugin: encode: add a helper macro to register encode type.

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Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer-vaapi/-/merge_requests/315>
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He Junyan 2020-04-23 00:02:02 +08:00 committed by Víctor Manuel Jáquez Leal
parent 0e4c750918
commit 3b3e987237
1 changed files with 78 additions and 0 deletions
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78
gst/vaapi/gstvaapiencode.h
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@ -44,6 +44,84 @@ G_BEGIN_DECLS
#define GST_IS_VAAPIENCODE_CLASS(klass) \ #define GST_IS_VAAPIENCODE_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_VAAPIENCODE)) (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_VAAPIENCODE))
#define GST_VAAPI_ENCODE_REGISTER_TYPE(NAME, CODEC, CLASS, _EXT_FMT_) \
static GType encode_type = G_TYPE_INVALID; \
static gpointer gst_vaapiencode_##NAME##_parent_class = NULL; \
static void \
gst_vaapiencode_##NAME##_class_init ( \
GstVaapiEncode##CLASS##Class * klass, gpointer data); \
static void gst_vaapiencode_##NAME##_class_intern_init (gpointer klass, \
gpointer data) \
{ \
gst_vaapiencode_##NAME##_parent_class = \
g_type_class_peek_parent (klass); \
gst_vaapiencode_##NAME##_class_init (klass, data); \
} \
static void \
gst_vaapiencode_##NAME##_init (GstVaapiEncode##CLASS * encode); \
GType \
gst_vaapiencode_##NAME##_register_type (GstVaapiDisplay * display) \
{ \
GstCaps *caps; \
guint i, n; \
GTypeInfo type_info = { \
sizeof (GstVaapiEncodeClass), \
NULL, \
NULL, \
(GClassInitFunc) gst_vaapiencode_##NAME##_class_intern_init, \
NULL, \
NULL, \
sizeof (GstVaapiEncode##CLASS), \
0, \
(GInstanceInitFunc) gst_vaapiencode_##NAME##_init, \
}; \
GArray *extra_fmts = NULL; \
GstVideoFormat ext_video_fmts[] = _EXT_FMT_; \
\
GST_DEBUG_CATEGORY_INIT (gst_vaapi_##NAME##_encode_debug, \
GST_PLUGIN_NAME, 0, GST_PLUGIN_DESC); \
\
if ((n = G_N_ELEMENTS (ext_video_fmts))) { \
extra_fmts = \
g_array_sized_new (FALSE, FALSE, sizeof (GstVideoFormat), n); \
for (i = 0; i < n; i++) \
g_array_append_val (extra_fmts, ext_video_fmts[i]); \
} \
caps = gst_vaapi_build_template_caps_by_codec (display, \
GST_VAAPI_CONTEXT_USAGE_ENCODE, \
GST_VAAPI_CODEC_##CODEC, extra_fmts); \
g_clear_pointer (&extra_fmts, g_array_unref); \
if (!caps) { \
GST_ERROR ("failed to get sink caps for " #CODEC \
" encode, can not register"); \
return G_TYPE_INVALID; \
} \
\
for (i = 0; i < gst_caps_get_size (caps); i++) { \
GstStructure *structure = gst_caps_get_structure (caps, i); \
if (!structure) \
continue; \
gst_structure_set (structure, "interlace-mode", G_TYPE_STRING, \
"progressive", NULL); \
} \
GST_DEBUG (#CODEC" encode's sink caps %" GST_PTR_FORMAT, caps); \
\
/* class data will be leaked if the element never gets instantiated */ \
GST_MINI_OBJECT_FLAG_SET (caps, GST_MINI_OBJECT_FLAG_MAY_BE_LEAKED); \
type_info.class_data = caps; \
encode_type = g_type_register_static (GST_TYPE_VAAPIENCODE, \
"GstVaapiEncode"#CLASS, &type_info, 0); \
\
return encode_type; \
} \
\
GType \
gst_vaapiencode_##NAME##_get_type (void) \
{ \
g_assert (encode_type != G_TYPE_INVALID); \
return encode_type; \
}
typedef struct _GstVaapiEncode GstVaapiEncode; typedef struct _GstVaapiEncode GstVaapiEncode;
typedef struct _GstVaapiEncodeClass GstVaapiEncodeClass; typedef struct _GstVaapiEncodeClass GstVaapiEncodeClass;