gstreamer/subprojects/gst-plugins-bad/sys/msdk/gstmsdk_va.c

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/* GStreamer Intel MSDK plugin
* Copyright (c) 2021, Intel Corporation
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* 3. Neither the name of the copyright holder nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGDECE
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _WIN32
#include "gstmsdk_va.h"
#define GST_MAP_VA (GST_MAP_FLAG_LAST << 1)
static GQuark
gst_msdk_va_memory_surface_quark_get (void)
{
static gsize g_quark;
if (g_once_init_enter (&g_quark)) {
gsize quark = (gsize) g_quark_from_static_string ("GstMsdkMemoryVASurface");
g_once_init_leave (&g_quark, quark);
}
return g_quark;
}
static gboolean
gst_msdk_is_va_mem (GstMemory * mem)
{
GstAllocator *allocator;
allocator = mem->allocator;
if (!allocator)
return FALSE;
return g_str_equal (allocator->mem_type, "VAMemory");
}
VASurfaceID
gst_msdk_va_peek_buffer_surface (GstBuffer * buffer)
{
GstMemory *mem;
VASurfaceID surface;
GstMapInfo map_info;
gpointer data;
g_return_val_if_fail (buffer, VA_INVALID_SURFACE);
mem = gst_buffer_peek_memory (buffer, 0);
if (!mem)
return VA_INVALID_SURFACE;
if (!gst_msdk_is_va_mem (mem))
return VA_INVALID_SURFACE;
data = gst_mini_object_get_qdata (GST_MINI_OBJECT (mem),
gst_msdk_va_memory_surface_quark_get ());
if (data) {
surface = *(VASurfaceID *) data;
g_assert (surface != VA_INVALID_SURFACE);
return surface;
}
if (!gst_buffer_map (buffer, &map_info, GST_MAP_READ | GST_MAP_VA))
return VA_INVALID_SURFACE;
surface = (*(VASurfaceID *) map_info.data);
gst_buffer_unmap (buffer, &map_info);
if (surface == VA_INVALID_ID) {
GST_WARNING ("Fail to get va surface by GST_MAP_VA mapping");
} else {
data = g_new (VASurfaceID, 1);
*(VASurfaceID *) data = surface;
gst_mini_object_set_qdata (GST_MINI_OBJECT_CAST (mem),
gst_msdk_va_memory_surface_quark_get (), data, g_free);
}
return surface;
}
#endif /* _WIN32 */