Android 播放/下载M3U8视频(转)

这个直播的视频格式可能用的少,之前遇到了一次,现在想起来记录一下

<1>根据后台给出的m3u8的地址,实现播放,核心代码贴出


try {

            String url = "http://devimages.apple.com/iphone/samples/bipbop/bipbopall.m3u8";//测试的m3u8地址

            //String url="http://devimages.apple.com/iphone/samples/bipbop/gear1/fileSequence0.ts";

            MediaPlayer mPlayer = new MediaPlayer();

            mPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);

            mPlayer.setDataSource(url);

            mPlayer.prepare(); // might take long! (for buffering, etc)

            mPlayer.setDisplay(surfaceHolder);    //设置显示视频显示在SurfaceView上  自己写个SurfaceHolder设置进去,不懂的可以上网查下这个如何设置

        } catch (IOException e) {

            e.printStackTrace();

        }

<2>下载m3u8的视频。用浏览器打开m3u8的地址,会发现它是个下载地址,默认会把m3u8文件下载下来,右键以文本方式打开m3u8,会发现是一串有规律的文本文件:


#EXTM3U

#EXT-X-STREAM-INF:PROGRAM-ID=1, BANDWIDTH=200000

gear1/prog_index.m3u8

#EXT-X-STREAM-INF:PROGRAM-ID=1, BANDWIDTH=311111

gear2/prog_index.m3u8

#EXT-X-STREAM-INF:PROGRAM-ID=1, BANDWIDTH=484444

gear3/prog_index.m3u8

#EXT-X-STREAM-INF:PROGRAM-ID=1, BANDWIDTH=737777

gear4/prog_index.m3u8

m3u8的地址你都不能直接得到,我们用得到这个文件的链接地址的前半段(http://devimages.apple.com/iphone/samples/bipbop/)拼接上二级文件的相对地址gear1/prog_index.m3u8得到一个地址(http://devimages.apple.com/iphone/samples/bipbop/gear1/prog_index.m3u8)

把此地址放到浏览器中,我们又会得到一个同样名为prog_index.m3u8的文件,内容如下:


#EXTM3U

#EXT-X-TARGETDURATION:10

#EXT-X-MEDIA-SEQUENCE:0

#EXTINF:10, no desc

fileSequence0.ts

#EXTINF:10, no desc

fileSequence1.ts

#EXTINF:10, no desc

fileSequence2.ts

#EXTINF:10, no desc

fileSequence3.ts

#EXTINF:10, no desc

fileSequence4.ts

#EXTINF:10, no desc

////省略后半部分

<3>终于可以看到ts文件名了,我们还是没有得到真正的视频地址,老办法拼接后我们得到这么一段链(http://devimages.apple.com/iphone/samples/bipbop/gear1/fileSequence179.ts),这就是真正的视频地址。

通过网络下载把所有的ts文件都下载下来,我写了个方法,在此贴出:


/**

* 给类提供访问网络的方法

* @author Administrator

*

*/

public final class HttpConnect {

    /*import org.apache.http.client.HttpClient;

import org.apache.http.client.methods.HttpGet;

import org.apache.http.impl.client.DefaultHttpClient;*/

    /**

    * 利用HttpClient获取指定的Url对应的HttpResponse对象

    * @param url

    * @return

    */

    public static HttpResponse getResponseFromUrl(String url){

        try {

            HttpClient client = new DefaultHttpClient();

            HttpGet get = new HttpGet(url);

            HttpResponse response = client.execute(get);

            if(response.getStatusLine().getStatusCode() == HttpStatus.SC_OK){

                return response;

            }

        } catch (Exception e) {

            // TODO: handle exception

            e.printStackTrace();

        }

        return null;

    }

    /**

    * 利用HttpClient获取指定Url对应的字符串对象

    * @param url

    * @return

    */

    public static String getStringFromUrl(String url){

        try {

            StringBuilder result = new StringBuilder();

            HttpResponse res = HttpConnect.getResponseFromUrl(url);

            if(res != null){

                InputStream is = res.getEntity().getContent();

                BufferedReader reader = new BufferedReader(new InputStreamReader(is));

                String line = "";

                while((line = reader.readLine()) != null){

                    result.append(line);

                }

                is.close();

                return result.toString();

            }

        } catch (Exception e) {

            // TODO: handle exception

        }

        return null;

    }

}

使用:


/**

    * 解析m3u8,下载m3u8文件

    * @param url 传入m3u8的地址

    */

    public static void checkURlBTS(String url) {

        List m3u8List = null;//m3u8地址集合

        List tsList = null;//ts文件地址集合额

        HttpResponse res = HttpConnect.getResponseFromUrl(url);

        //HttpResponse res = HttpConnect.getResponseFromUrl(url);

        try {

            if (res != null) {

                m3u8List = new ArrayList<>();

                tsList=new ArrayList<>();

                InputStream in = res.getEntity().getContent();

                BufferedReader reader = new BufferedReader(new InputStreamReader(in));

                String line = "";

                while ((line = reader.readLine()) != null) {

                    if (line.startsWith("#")) {

                    } else if (line.length() > 0 && line.endsWith(".m3u8")) {

                        String mUpM3u8URL=url.substring(0,url.lastIndexOf("/")+1);

                        m3u8List.add(mUpM3u8URL+line);

                    } else if (line.length() > 0 && line.endsWith(".ts")) {//判断该文件是否含有.ts文件

                        String mUpTSURL=url.substring(0,url.lastIndexOf("/")+1);

                        tsList.add(mUpTSURL+line);

                    }

                }

                in.close();

            }

        } catch (Exception e) {

            e.printStackTrace();

        }

        if(m3u8List!=null&&m3u8List.size()!=0){

            for (int i=0;i urlList){

                    //for (int i=0;i",""+urlList.get(i));

                        load(urlList.get(i));

                    }

        }

    /**

    * @Desciption: 读取任意文件,并将文件保存到手机SDCard

    */

    public static void load(String loadURL) {

        String path = loadURL.substring(loadURL.substring(0, loadURL.lastIndexOf("/")).lastIndexOf("/") + 1, loadURL.lastIndexOf("/"));

        String fileName = loadURL.substring(loadURL.lastIndexOf("/") + 1, loadURL.length());

        OutputStream output = null;

        try {

        //因ts文件非常之多,下载很缓慢,我们项目是使用了okHttp下载的,但为了方便大家,写了个httpclient下载

            URL url = new URL(loadURL);

            HttpURLConnection conn = (HttpURLConnection) url.openConnection();

            //取得inputStream,并将流中的信息写入SDCard

            String SDCard = Environment.getExternalStorageDirectory() + "";

            String pathName = SDCard + "/" + path + "/" + fileName;//文件存储路径

            File file = new File(pathName);

            InputStream input = conn.getInputStream();

            if (file.exists()) {

                return;

            } else {

                String dir = SDCard + "/" + path;

                new File(dir).mkdir();//新建文件夹

                file.createNewFile();//新建文件

                output = new FileOutputStream(file);

                //读取大文件

                byte[] buffer = new byte[4 * 1024];

                while (input.read(buffer) != -1) {

                    output.write(buffer);

                }

                output.flush();

                Log.e("success-->","come in");

            }

        } catch (Exception e) {

            e.printStackTrace();

        } finally {

            try {

                if (output!=null){

                    output.close();

                }

            } catch (IOException e) {

                e.printStackTrace();

            }

        }

    }

最后播放缓存的m3u8.这个就不贴代码了,播放时,就把本地的m3u8地址替换网络的播放地址就可以了。

这有篇挺好的文章,(http://www.cnblogs.com/Leo_wl/p/5646916.html)

转载声明出处,原文:https://blog.csdn.net/lxy_tap/article/details/52487455

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