AVILib

AVILib 库来自 Transcode 的大型开源项目，Transcode-1.1.7 下载地址：

http://www.linuxfromscratch.org/blfs/view/svn/multimedia/transcode.html

解压至 $ANDROID_NDK_HOME/sources

cd Transcode-1.1.7/avilib

修改 platform.h 文件，将通过 Android NDK 构建系统而不是 Transcode 项目的 Makefiles 来完成 AVILIB 的编译。

 1 /*
 2  * platform.h -- platform utilities wrapper for stream handling libraries
 3  *               (avilib, wavilib) in transcode.
 4  * (C) 2007-2010 - Francesco Romani <fromani -at- gmail -dot- com>
 5  *
 6  * This software is provided 'as-is', without any express or implied
 7  * warranty.  In no event will the authors be held liable for any damages
 8  * arising from the use of this software.
 9  *
10  * Permission is granted to anyone to use this software for any purpose,
11  * including commercial applications, and to alter it and redistribute it
12  * freely, subject to the following restrictions:
13  *
14  * 1. The origin of this software must not be misrepresented; you must not
15  *    claim that you wrote the original software. If you use this software
16  *    in a product, an acknowledgment in the product documentation would be
17  *    appreciated but is not required.
18  * 2. Altered source versions must be plainly marked as such, and must not be
19  *    misrepresented as being the original software.
20  * 3. This notice may not be removed or altered from any source distribution.
21  */
22 
23 #ifndef PLATFORM_H
24 #define PLATFORM_H
25 
26 #ifdef HAVE_CONFIG_H
27 #include "config.h"
28 #endif
29 
30 #ifdef OS_DARWIN
31 #include <sys/uio.h>
32 #endif
33 
34 #include <sys/types.h>
35 #include <sys/stat.h>
36 #include <fcntl.h>
37 #include <unistd.h>
38 #include <stdint.h>
39 #include <stdlib.h>
40 #include <stdio.h>
41 
42 
43 /*************************************************************************/
44 /* POSIX-like I/O handling                                               */
45 /*************************************************************************/
46 
47 int plat_open(const char *pathname, int flags, int mode);
48 int plat_close(int fd);
49 ssize_t plat_read(int fd, void *buf, size_t count);
50 ssize_t plat_write(int fd, const void *buf, size_t count);
51 int64_t plat_seek(int fd, int64_t offset, int whence);
52 int plat_ftruncate(int fd, int64_t length);
53 
54 /*************************************************************************/
55 /* libc-like memory handling                                             */
56 /*************************************************************************/
57 
58 void *_plat_malloc(const char *file, int line, size_t size);
59 void *_plat_zalloc(const char *file, int line, size_t size);
60 void *_plat_realloc(const char *file, int line, void *ptr, size_t size);
61 void plat_free(void *ptr);
62 
63 #define plat_malloc(size) \
64             _plat_malloc(__FILE__, __LINE__, size)
65 #define plat_zalloc(size) \
66             _plat_zalloc(__FILE__, __LINE__, size)
67 #define plat_realloc(p,size) \
68             _plat_realloc(__FILE__, __LINE__, p, size)
69 
70 /*************************************************************************/
71 /* simple logging facility                                               */ 
72 /*************************************************************************/
73 
74 typedef enum platloglevel_ PlatLogLevel;
75 enum platloglevel_ {
76     PLAT_LOG_DEBUG = 0,
77     PLAT_LOG_INFO,
78     PLAT_LOG_WARNING,
79     PLAT_LOG_ERROR,
80 };
81 
82 int plat_log_open(void);
83 int plat_log_send(PlatLogLevel level,
84                   const char *tag, const char *fmt, ...);
85 int plat_log_close(void);
86 
87 #endif /* PLATFORM_H */
platform.h

Android NDK 构建系统需要创建 Android.mk 文件的导入模块。

 1 LOCAL_PATH := $(call my-dir)
 2 
 3 #
 4 # 转码 AVILib
 5 #
 6 
 7 # 源文件
 8 MY_AVILIB_SRC_FILES := avilib.c platform_posix.c
 9 
10 # 包含导出路径
11 MY_AVILIB_C_INCLUDES := $(LOCAL_PATH)
12 
13 #
14 # AVILib 静态
15 #
16 include $(CLEAR_VARS)
17 
18 # 模块名称
19 LOCAL_MODULE := avilib_static
20 
21 # 源文件 
22 LOCAL_SRC_FILES := $(MY_AVILIB_SRC_FILES)
23 
24 # 包含导出路径
25 LOCAL_EXPORT_C_INCLUDES := $(MY_AVILIB_C_INCLUDES)
26 
27 # 构建静态库 
28 include $(BUILD_STATIC_LIBRARY)
29 
30 #
31 # AVILib 共享
32 #
33 include $(CLEAR_VARS)
34 
35 #模块名称
36 LOCAL_MODULE := avilib_shared
37 
38 # 源文件 
39 LOCAL_SRC_FILES := $(MY_AVILIB_SRC_FILES)
40 
41 # 包含导出路径
42 LOCAL_EXPORT_C_INCLUDES := $(MY_AVILIB_C_INCLUDES)
43 
44 # 构建共享库
45 include $(BUILD_SHARED_LIBRARY)

 

posted @ 2015-07-09 12:06  壬子木  阅读(1884)  评论(0)    收藏  举报