1// Copyright (c) 2012 The Chromium Authors. All rights reserved. 2// Use of this source code is governed by a BSD-style license that can be 3// found in the LICENSE file. 4 5#include "media/base/media.h" 6 7#include <string> 8 9#include "base/files/file_path.h" 10#include "base/logging.h" 11#include "base/path_service.h" 12#include "base/strings/stringize_macros.h" 13#include "media/ffmpeg/ffmpeg_common.h" 14#include "third_party/ffmpeg/ffmpeg_stubs.h" 15 16using third_party_ffmpeg::kNumStubModules; 17using third_party_ffmpeg::kModuleFfmpegsumo; 18using third_party_ffmpeg::InitializeStubs; 19using third_party_ffmpeg::StubPathMap; 20 21namespace media { 22namespace internal { 23 24// Handy to prevent shooting ourselves in the foot with macro wizardry. 25#if !defined(LIBAVCODEC_VERSION_MAJOR) || \ 26 !defined(LIBAVFORMAT_VERSION_MAJOR) || \ 27 !defined(LIBAVUTIL_VERSION_MAJOR) 28#error FFmpeg headers not included! 29#endif 30 31#define AVCODEC_VERSION STRINGIZE(LIBAVCODEC_VERSION_MAJOR) 32#define AVFORMAT_VERSION STRINGIZE(LIBAVFORMAT_VERSION_MAJOR) 33#define AVUTIL_VERSION STRINGIZE(LIBAVUTIL_VERSION_MAJOR) 34 35#if defined(OS_MACOSX) 36// TODO(evan): should be using .so like ffmepgsumo here. 37#define DSO_NAME(MODULE, VERSION) ("lib" MODULE "." VERSION ".dylib") 38static const base::FilePath::CharType kSumoLib[] = 39 FILE_PATH_LITERAL("ffmpegsumo.so"); 40#elif defined(OS_POSIX) 41#define DSO_NAME(MODULE, VERSION) ("lib" MODULE ".so." VERSION) 42static const base::FilePath::CharType kSumoLib[] = 43 FILE_PATH_LITERAL("libffmpegsumo.so"); 44#else 45#error "Do not know how to construct DSO name for this OS." 46#endif 47 48bool InitializeMediaLibraryInternal(const base::FilePath& module_dir) { 49 StubPathMap paths; 50 51 // First try to initialize with Chrome's sumo library. 52 DCHECK_EQ(kNumStubModules, 1); 53 paths[kModuleFfmpegsumo].push_back(module_dir.Append(kSumoLib).value()); 54 55 // If that fails, see if any system libraries are available. 56 paths[kModuleFfmpegsumo].push_back(module_dir.Append( 57 FILE_PATH_LITERAL(DSO_NAME("avutil", AVUTIL_VERSION))).value()); 58 paths[kModuleFfmpegsumo].push_back(module_dir.Append( 59 FILE_PATH_LITERAL(DSO_NAME("avcodec", AVCODEC_VERSION))).value()); 60 paths[kModuleFfmpegsumo].push_back(module_dir.Append( 61 FILE_PATH_LITERAL(DSO_NAME("avformat", AVFORMAT_VERSION))).value()); 62 63 return InitializeStubs(paths); 64} 65 66} // namespace internal 67} // namespace media 68