gstreamer/subprojects/gst-plugins-bad/sys/amfcodec/gstamfutils.cpp

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/* GStreamer
* Copyright (C) 2022 Seungha Yang <seungha@centricular.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <core/Factory.h>
#include "gstamfutils.h"
#include <gmodule.h>
using namespace amf;
AMFFactory *_factory = nullptr;
static gboolean loaded = FALSE;
static gboolean
gst_amf_load_library (void)
{
AMF_RESULT result;
GModule *amf_module = nullptr;
AMFInit_Fn init_func = nullptr;
amf_module = g_module_open (AMF_DLL_NAMEA, G_MODULE_BIND_LAZY);
if (!amf_module)
return FALSE;
if (!g_module_symbol (amf_module, AMF_INIT_FUNCTION_NAME, (gpointer *)
& init_func)) {
g_module_close (amf_module);
amf_module = nullptr;
return FALSE;
}
result = init_func (AMF_FULL_VERSION, &_factory);
if (result != AMF_OK) {
g_module_close (amf_module);
amf_module = nullptr;
_factory = nullptr;
return FALSE;
}
return TRUE;
}
gboolean
gst_amf_init_once (void)
{
static gsize init_once = 0;
if (g_once_init_enter (&init_once)) {
loaded = gst_amf_load_library ();
g_once_init_leave (&init_once, 1);
}
return loaded;
}
gpointer
gst_amf_get_factory (void)
{
return (gpointer) _factory;
}
const gchar *
gst_amf_result_to_string (AMF_RESULT result)
{
#define CASE(err) \
case err: \
return G_STRINGIFY (err);
switch (result) {
CASE (AMF_OK);
CASE (AMF_FAIL);
CASE (AMF_UNEXPECTED);
CASE (AMF_ACCESS_DENIED);
CASE (AMF_INVALID_ARG);
CASE (AMF_OUT_OF_RANGE);
CASE (AMF_OUT_OF_MEMORY);
CASE (AMF_INVALID_POINTER);
CASE (AMF_NO_INTERFACE);
CASE (AMF_NOT_IMPLEMENTED);
CASE (AMF_NOT_SUPPORTED);
CASE (AMF_NOT_FOUND);
CASE (AMF_ALREADY_INITIALIZED);
CASE (AMF_NOT_INITIALIZED);
CASE (AMF_INVALID_FORMAT);
CASE (AMF_WRONG_STATE);
CASE (AMF_FILE_NOT_OPEN);
CASE (AMF_NO_DEVICE);
CASE (AMF_DIRECTX_FAILED);
CASE (AMF_OPENCL_FAILED);
CASE (AMF_GLX_FAILED);
CASE (AMF_XV_FAILED);
CASE (AMF_ALSA_FAILED);
CASE (AMF_EOF);
CASE (AMF_REPEAT);
CASE (AMF_INPUT_FULL);
CASE (AMF_RESOLUTION_CHANGED);
CASE (AMF_RESOLUTION_UPDATED);
CASE (AMF_INVALID_DATA_TYPE);
CASE (AMF_INVALID_RESOLUTION);
CASE (AMF_CODEC_NOT_SUPPORTED);
CASE (AMF_SURFACE_FORMAT_NOT_SUPPORTED);
CASE (AMF_SURFACE_MUST_BE_SHARED);
CASE (AMF_DECODER_NOT_PRESENT);
CASE (AMF_DECODER_SURFACE_ALLOCATION_FAILED);
CASE (AMF_DECODER_NO_FREE_SURFACES);
CASE (AMF_ENCODER_NOT_PRESENT);
CASE (AMF_DEM_ERROR);
CASE (AMF_DEM_PROPERTY_READONLY);
CASE (AMF_DEM_REMOTE_DISPLAY_CREATE_FAILED);
CASE (AMF_DEM_START_ENCODING_FAILED);
CASE (AMF_DEM_QUERY_OUTPUT_FAILED);
CASE (AMF_TAN_CLIPPING_WAS_REQUIRED);
CASE (AMF_TAN_UNSUPPORTED_VERSION);
CASE (AMF_NEED_MORE_INPUT);
default:
break;
}
#undef CASE
return "Unknown";
}