deploy: current vibn theia state

Made-with: Cursor

dev-packages/ffmpeg/native/linux-ffmpeg.c

@@ -0,0 +1,68 @@
+// *****************************************************************************
+// Copyright (C) 2019 Ericsson and others.
+//
+// This program and the accompanying materials are made available under the
+// terms of the Eclipse Public License v. 2.0 which is available at
+// http://www.eclipse.org/legal/epl-2.0.
+//
+// This Source Code may also be made available under the following Secondary
+// Licenses when the conditions for such availability set forth in the Eclipse
+// Public License v. 2.0 are satisfied: GNU General Public License, version 2
+// with the GNU Classpath Exception which is available at
+// https://www.gnu.org/software/classpath/license.html.
+//
+// SPDX-License-Identifier: EPL-2.0 OR GPL-2.0-only WITH Classpath-exception-2.0
+// *****************************************************************************
+
+#ifndef LINUX_FFMPEG
+#define LINUX_FFMPEG
+
+#include <stdlib.h>
+#include <dlfcn.h>
+
+#include "ffmpeg.h"
+
+char *load_ffmpeg_library(struct FFMPEG_Library *library, char *library_path)
+{
+    void *handle = dlopen(library_path, RTLD_NOW);
+    char *error = dlerror();
+    if (error != NULL)
+    {
+        goto error;
+    }
+
+    struct AVCodecDescriptor *(*avcodec_descriptor_next)(const struct AVCodecDescriptor *) = dlsym(handle, "avcodec_descriptor_next");
+    error = dlerror();
+    if (error != NULL)
+    {
+        goto error;
+    }
+
+    struct AVCodec *(*avcodec_find_decoder)(enum AVCodecID) = dlsym(handle, "avcodec_find_decoder");
+    error = dlerror();
+    if (error != NULL)
+    {
+        goto error;
+    }
+
+    library->handle = handle;
+    library->avcodec_descriptor_next = avcodec_descriptor_next;
+    library->avcodec_find_decoder = avcodec_find_decoder;
+    return NULL;
+
+error:
+    if (handle != NULL)
+    {
+        dlclose(handle);
+    }
+    return error;
+}
+
+char *unload_ffmpeg_library(struct FFMPEG_Library *library)
+{
+    dlclose(library->handle);
+    *library = NULL_FFMPEG_LIBRARY;
+    return dlerror();
+}
+
+#endif // LINUX_FFMPEG guard