blob: fef75db72e6bfbf80d0ec43ad8adeee6307038bd [file] [log] [blame]
// Copyright 2019 The Cobalt Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "starboard/shared/libaom/aom_library_loader.h"
#include <dlfcn.h>
#include "starboard/common/log.h"
namespace starboard {
namespace shared {
namespace aom {
namespace {
const char kAomLibraryName[] = "libaom.so";
class LibaomHandle {
public:
LibaomHandle() { LoadLibrary(); }
~LibaomHandle() {
if (handle_) {
dlclose(handle_);
}
}
bool IsLoaded() const { return handle_; }
private:
void ReportSymbolError() {
SB_LOG(ERROR) << "Aom load error: " << dlerror();
dlclose(handle_);
handle_ = NULL;
}
void LoadLibrary() {
SB_DCHECK(!handle_);
handle_ = dlopen(kAomLibraryName, RTLD_LAZY);
if (!handle_) {
return;
}
#define INITSYMBOL(symbol) \
symbol = reinterpret_cast<decltype(symbol)>(dlsym(handle_, #symbol)); \
if (!symbol) { \
ReportSymbolError(); \
return; \
}
INITSYMBOL(aom_codec_dec_init_ver);
INITSYMBOL(aom_codec_av1_dx);
INITSYMBOL(aom_codec_destroy);
INITSYMBOL(aom_codec_decode);
INITSYMBOL(aom_codec_get_frame);
}
void* handle_ = NULL;
};
LibaomHandle* GetHandle() {
static LibaomHandle instance;
return &instance;
}
} // namespace
aom_codec_err_t (*aom_codec_dec_init_ver)(aom_codec_ctx_t*,
aom_codec_iface_t*,
const aom_codec_dec_cfg_t*,
aom_codec_flags_t,
int) = NULL;
aom_codec_iface_t* (*aom_codec_av1_dx)(void) = NULL;
aom_codec_err_t (*aom_codec_destroy)(aom_codec_ctx_t*) = NULL;
aom_codec_err_t (*aom_codec_decode)(aom_codec_ctx_t*,
const uint8_t*,
size_t,
void*) = NULL;
aom_image_t* (*aom_codec_get_frame)(aom_codec_ctx_t*, aom_codec_iter_t*) = NULL;
bool is_aom_supported() {
return GetHandle()->IsLoaded();
}
} // namespace aom
} // namespace shared
} // namespace starboard