import com.google.android.exoplayer2.upstream.DefaultHttpDataSource; //导入依赖的package包/类
public CustomDefaultHttpDataSourceFactory(String userAgent,
                                          TransferListener<? super DataSource> listener,
                                          boolean enableShoutcast,
                                          PlayerCallback playerCallback) {
    this(userAgent,
         listener,
         DefaultHttpDataSource.DEFAULT_CONNECT_TIMEOUT_MILLIS,
         DefaultHttpDataSource.DEFAULT_READ_TIMEOUT_MILLIS,
         false,
         enableShoutcast,
         playerCallback);
}
 

import com.google.android.exoplayer2.upstream.DefaultHttpDataSource; //导入依赖的package包/类
@Override
public DefaultHttpDataSource createDataSource() {
    // toggle Shoutcast extraction
    if (enableShoutcast) {
        return new IcyDataSource(userAgent, null, playerCallback);
    } else {
        return new DefaultHttpDataSource(userAgent, null, listener, connectTimeoutMillis,
                readTimeoutMillis, allowCrossProtocolRedirects, null);
    }
}
 

import com.google.android.exoplayer2.upstream.DefaultHttpDataSource; //导入依赖的package包/类
private HttpDataSource.Factory buildHttpDataSourceFactory(DefaultBandwidthMeter bandwidthMeter) {
	return new DefaultHttpDataSourceFactory(mUserAgent, bandwidthMeter,
			DefaultHttpDataSource.DEFAULT_CONNECT_TIMEOUT_MILLIS,
			DefaultHttpDataSource.DEFAULT_READ_TIMEOUT_MILLIS,
			true /* allowCrossProtocolRedirects */);
}
 

import com.google.android.exoplayer2.upstream.DefaultHttpDataSource; //导入依赖的package包/类
private HttpDataSource.Factory buildHttpDataSourceFactory(DefaultBandwidthMeter bandwidthMeter) {

        return new DefaultHttpDataSourceFactory(Util.getUserAgent(mContext, TAG), bandwidthMeter, DefaultHttpDataSource.DEFAULT_CONNECT_TIMEOUT_MILLIS,
                DefaultHttpDataSource.DEFAULT_READ_TIMEOUT_MILLIS, true);
    }
 

import com.google.android.exoplayer2.upstream.DefaultHttpDataSource; //导入依赖的package包/类
private void setConnectTimeoutMillis() {
    connectTimeoutMillis = DefaultHttpDataSource.DEFAULT_CONNECT_TIMEOUT_MILLIS;
}
 

import com.google.android.exoplayer2.upstream.DefaultHttpDataSource; //导入依赖的package包/类
private void setReadTimeoutMillis() {
    readTimeoutMillis = DefaultHttpDataSource.DEFAULT_READ_TIMEOUT_MILLIS;
}
 

import com.google.android.exoplayer2.upstream.DefaultHttpDataSource; //导入依赖的package包/类
@Override
public DefaultHttpDataSource createDataSource() {

    return new DefaultHttpDataSource(userAgent, null, listener, connectTimeoutMillis, readTimeoutMillis, allowCrossProtocolRedirects, null);
}
 

import com.google.android.exoplayer2.upstream.DefaultHttpDataSource; //导入依赖的package包/类
/**
 * Constructs a new instance, optionally configured to follow cross-protocol redirects.
 *
 * @param context                     A context.
 * @param listener                    An optional listener.
 * @param userAgent                   The User-Agent string that should be used when requesting remote data.
 * @param connectTimeoutMillis        The connection timeout that should be used when requesting remote                                    data, in milliseconds. A timeout of zero is interpreted as an infinite timeout.
 * @param readTimeoutMillis           The read timeout that should be used when requesting remote data,                                    in milliseconds. A timeout of zero is interpreted as an infinite timeout.
 * @param allowCrossProtocolRedirects Whether cross-protocol redirects (i.e. redirects from HTTP                                    to HTTPS and vice versa) are enabled when fetching remote data.
 */
public MyDefaultDataSource(Context context, TransferListener<? super DataSource> listener,
                           String userAgent, int connectTimeoutMillis, int readTimeoutMillis,
                           boolean allowCrossProtocolRedirects) {
    this(context, listener,
            new DefaultHttpDataSource(userAgent, null, listener, connectTimeoutMillis,
                    readTimeoutMillis, allowCrossProtocolRedirects, null));
}
 

import com.google.android.exoplayer2.upstream.DefaultHttpDataSource; //导入依赖的package包/类
/**
 * Constructs a new instance, optionally configured to follow cross-protocol redirects.
 *
 * @param context                     A context.
 * @param listener                    An optional listener.
 * @param userAgent                   The User-Agent string that should be used when requesting remote data.
 * @param connectTimeoutMillis        The connection timeout that should be used when requesting remote
 *                                    data, in milliseconds. A timeout of zero is interpreted as an infinite timeout.
 * @param readTimeoutMillis           The read timeout that should be used when requesting remote data,
 *                                    in milliseconds. A timeout of zero is interpreted as an infinite timeout.
 * @param allowCrossProtocolRedirects Whether cross-protocol redirects (i.e. redirects from HTTP
 *                                    to HTTPS and vice versa) are enabled when fetching remote data.
 */
public AitripDataSource(Context context, TransferListener<? super DataSource> listener,
                        String userAgent, int connectTimeoutMillis, int readTimeoutMillis,
                        boolean allowCrossProtocolRedirects) {
    this(context, listener,
            new DefaultHttpDataSource(userAgent, null, listener, connectTimeoutMillis,
                    readTimeoutMillis, allowCrossProtocolRedirects, null));
}