gstreamer/gst-libs/gst/vaapi/gstcompat.h
Gwenole Beauchesne 1b500dee54 Allow build against either GStreamer API (0.10 or 1.0).
Introduce a new configure option --with-gstreamer-api that determines
the desired GStreamer API to use. By default, GStreamer 1.0 is selected.
Also integrate more compatibility glue into gstcompat.h and plugins.
2013-04-10 14:58:17 +02:00

274 lines
8.3 KiB
C

/*
* gstcompat.h - Compatibility glue for GStreamer
*
* Copyright (C) 2013 Intel Corporation
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation; either version 2.1
* of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301 USA
*/
#ifndef GST_COMPAT_H
#define GST_COMPAT_H
#include <gst/gst.h>
/* ------------------------------------------------------------------------ */
/* --- GStreamer >= 1.0 --- */
/* ------------------------------------------------------------------------ */
#if GST_CHECK_VERSION(1,0,0)
#include <gst/video/gstvideometa.h>
/* GstStructure */
#undef gst_structure_get_fourcc
#define gst_structure_get_fourcc(structure, fieldname, value) \
gst_compat_structure_get_fourcc(structure, fieldname, value)
static inline gboolean
gst_compat_structure_get_fourcc(const GstStructure *structure,
const gchar *fieldname, guint32 *value)
{
const gchar *s = gst_structure_get_string(structure, fieldname);
if (!s || strlen(s) != 4)
return FALSE;
*value = GST_MAKE_FOURCC(s[0], s[1], s[2], s[3]);
return TRUE;
}
/* GstTypeFind */
#undef GstTypeFindPeekFunction
#define GstTypeFindPeekFunction GstCompatTypeFindPeekFunction
#undef GstTypeFindSuggestFunction
#define GstTypeFindSuggestFunction GstCompatTypeFindSuggestFunction
typedef const guint8 *(*GstCompatTypeFindPeekFunction)(gpointer, gint64, guint);
typedef void (*GstCompatTypeFindSuggestFunction)(gpointer, guint, GstCaps *);
/* GstQuery */
#define GST_PAD_QUERY_FUNCTION_ARGS \
GstPad *pad, GstObject *parent, GstQuery *query
#define GST_PAD_QUERY_FUNCTION_CALL(func, pad, parent, query) \
(func)(pad, parent, query)
/* GstPlugin */
#define GST_PLUGIN_DESC_NAME(NAME) NAME
/* Misc helpers */
#define GST_MAKE_FORMAT_STRING(FORMAT) \
"format=(string)" G_STRINGIFY(FORMAT)
/* ------------------------------------------------------------------------ */
/* --- GStreamer = 0.10 --- */
/* ------------------------------------------------------------------------ */
#else
/* GstMemory */
typedef enum {
GST_MEMORY_FLAG_READONLY = GST_MINI_OBJECT_FLAG_READONLY
} GstMemoryFlags;
typedef enum {
GST_MAP_READ = 1 << 0,
GST_MAP_WRITE = 1 << 1
} GstMapFlags;
typedef struct {
GstMapFlags flags;
guint8 *data;
gsize size;
} GstMapInfo;
/* GstBuffer */
#undef gst_buffer_new_wrapped
#define gst_buffer_new_wrapped(data, size) \
gst_compat_buffer_new_wrapped_full(0, data, size, 0, size, data, g_free)
#undef gst_buffer_new_wrapped_full
#define gst_buffer_new_wrapped_full(flags, data, maxsize, ofs, size, ud, udd) \
gst_compat_buffer_new_wrapped_full(flags, data, maxsize, ofs, size, ud, udd)
#undef gst_buffer_get_size
#define gst_buffer_get_size(buffer) gst_compat_buffer_get_size(buffer)
#undef gst_buffer_map
#define gst_buffer_map(buffer, mip, f) gst_compat_buffer_map(buffer, mip, f)
#undef gst_buffer_unmap
#define gst_buffer_unmap(buffer, mip) gst_compat_buffer_unmap(buffer, mip)
#undef gst_buffer_extract
#define gst_buffer_extract(buffer, offset, dest, size) \
gst_compat_buffer_extract(buffer, offset, dest, size)
static inline GstBuffer *
gst_compat_buffer_new_wrapped_full(GstMemoryFlags flags, gpointer data,
gsize maxsize, gsize offset, gsize size, gpointer user_data,
GDestroyNotify notify)
{
GstBuffer *buffer;
/* XXX: unsupported */
g_return_val_if_fail(user_data == NULL, NULL);
g_return_val_if_fail(notify == NULL, NULL);
g_return_val_if_fail(maxsize >= size, NULL);
buffer = gst_buffer_new();
if (!buffer)
return NULL;
GST_BUFFER_DATA(buffer) = data + offset;
GST_BUFFER_SIZE(buffer) = size;
return buffer;
}
static inline gsize
gst_compat_buffer_get_size(GstBuffer *buffer)
{
return GST_BUFFER_SIZE(buffer);
}
static inline gboolean
gst_compat_buffer_map(GstBuffer *buffer, GstMapInfo *mip, GstMapFlags flags)
{
mip->flags = flags;
mip->data = GST_BUFFER_DATA(buffer);
mip->size = GST_BUFFER_SIZE(buffer);
return TRUE;
}
static inline void
gst_compat_buffer_unmap(GstBuffer *buffer, GstMapInfo *mip)
{
}
static inline gsize
gst_compat_buffer_extract(GstBuffer *buffer, gsize offset, gpointer dest,
gsize size)
{
gsize esize;
if (!buffer || !dest || offset >= GST_BUFFER_SIZE(buffer))
return 0;
esize = MIN(size, GST_BUFFER_SIZE(buffer) - offset);
memcpy(dest, GST_BUFFER_DATA(buffer) + offset, esize);
return esize;
}
/* GstAdapter */
#include <gst/base/gstadapter.h>
#undef gst_adapter_map
#define gst_adapter_map(adapter, size) gst_compat_adapter_map(adapter, size)
#undef gst_adapter_unmap
#define gst_adapter_unmap(adapter) gst_compat_adapter_unmap(adapter)
static inline gconstpointer
gst_compat_adapter_map(GstAdapter *adapter, gsize size)
{
return gst_adapter_peek(adapter, size);
}
static inline void
gst_compat_adapter_unmap(GstAdapter *adapter)
{
}
/* GstCaps */
#undef gst_caps_merge
#define gst_caps_merge(caps1, caps2) gst_compat_caps_merge(caps1, caps2)
#undef gst_caps_merge_structure
#define gst_caps_merge_structure(caps, structure) \
gst_compat_caps_merge_structure(caps, structure)
static inline GstCaps *
gst_compat_caps_merge(GstCaps *caps1, GstCaps *caps2)
{
(gst_caps_merge)(caps1, caps2);
return caps1;
}
static inline GstCaps *
gst_compat_caps_merge_structure(GstCaps *caps, GstStructure *structure)
{
(gst_caps_merge_structure)(caps, structure);
return caps;
}
/* GstVideoOverlayComposition */
#include <gst/video/video-overlay-composition.h>
#undef gst_video_overlay_rectangle_get_pixels_unscaled_raw
#define gst_video_overlay_rectangle_get_pixels_unscaled_raw(rect, flags) \
gst_compat_video_overlay_rectangle_get_pixels_unscaled_raw(rect, flags)
#ifndef HAVE_GST_VIDEO_OVERLAY_HWCAPS
#define gst_video_overlay_rectangle_get_flags(rect) (0)
#define gst_video_overlay_rectangle_get_global_alpha(rect) (1.0f)
#endif
static inline GstBuffer *
gst_compat_video_overlay_rectangle_get_pixels_unscaled_raw(
GstVideoOverlayRectangle *rect, GstVideoOverlayFormatFlags flags)
{
guint width, height, stride;
/* Try to retrieve the original buffer that was passed to
gst_video_overlay_rectangle_new_argb(). This will only work if
there was no previous user that required pixels with non native
alpha type */
return gst_video_overlay_rectangle_get_pixels_unscaled_argb(rect,
&width, &height, &stride, flags);
}
/* GstPad */
#undef GST_FLOW_EOS
#define GST_FLOW_EOS GST_FLOW_UNEXPECTED
/* GstElement */
#undef gst_element_class_set_static_metadata
#define gst_element_class_set_static_metadata(klass, name, path, desc, author) \
gst_compat_element_class_set_static_metadata(klass, name, path, desc, author)
static inline void
gst_compat_element_class_set_static_metadata(GstElementClass *klass,
const gchar *name, const char *path, const gchar *desc, const gchar *author)
{
gst_element_class_set_details_simple(klass, name, path, desc, author);
}
/* GstTypeFind */
#undef GstTypeFindPeekFunction
#define GstTypeFindPeekFunction GstCompatTypeFindPeekFunction
#undef GstTypeFindSuggestFunction
#define GstTypeFindSuggestFunction GstCompatTypeFindSuggestFunction
typedef guint8 *(*GstCompatTypeFindPeekFunction)(gpointer, gint64, guint);
typedef void (*GstCompatTypeFindSuggestFunction)(gpointer, guint, const GstCaps *);
/* GstQuery */
#define GST_PAD_QUERY_FUNCTION_ARGS \
GstPad *pad, GstQuery *query
#define GST_PAD_QUERY_FUNCTION_CALL(func, pad, parent, query) \
(func)(pad, query)
/* GstPlugin */
#define GST_PLUGIN_DESC_NAME(NAME) G_STRINGIFY(NAME)
/* Misc helpers */
#define GST_MAKE_FORMAT_STRING(FORMAT) \
"format=(fourcc)" G_STRINGIFY(FORMAT)
#endif
#endif /* GST_COMPAT_H */