涓轰粈涔堝埆浜虹殑鐩存挱鍒囨崲鍍忓痉鑺欎竴鏍蜂笣婊戯紝浣犵殑鍗村崱鎴怭PT锛?/h3>

鏄ㄥぉ鏈変釜鍋氱洿鎾瑼pp鐨勫摜浠窡鎴戝悙妲斤細"鐢ㄦ埛姣忔鍒囬閬撻兘瑕佺瓑2绉掞紝寮瑰箷鍖洪兘寮€濮嬮獋琛椾簡锛? 杩欒鎴戞兂璧峰幓骞村弬涓庝紭鍖栫殑涓€娆剧洿鎾簲鐢ㄢ€斺€斺€?strong>鈥嬮€氳繃绾跨▼绠＄悊鍜岀綉缁滄敼閫狅紝纭敓鐢熸妸鍒囨崲鏃堕棿浠?000ms鐮嶅埌300ms鈥?/strong>鈥嬨€備粖澶╁氨甯︿綘浠墥涓€鎵掕繖閲岃竟鐨勯棬閬撱€?/p>

---

鈻嶇嚎绋嬫睜閰嶇疆锛氬埆璁╀富绾跨▼鍙樻垚"鏄ヨ繍鐏溅绔?

鍜变滑寰楁槑鐧斤紝Android涓荤嚎绋嬪氨鍍忓崟杞﹂亾鐨勫皬璺紝鈥?strong>鈥嬫墍鏈塙I鎿嶄綔閮芥尋鍦ㄨ繖鏉¤矾涓娾€?/strong>鈥嬨€傛潵鐪嬩釜鍙嶉潰鏁欐潗锛?/p>

java澶嶅埗
// 閿欒绀鸿寖锛佺粷瀵逛笉瑕佸湪涓荤嚎绋嬪仛杩欎簺锛?/span>
public void switchChannel(String url) {
    new Thread(() -> {
        // 涓嬭浇鐩存挱娴佹暟鎹?/span>
        byte[] data = downloadLiveStream(url);
        updateUI(data);
    }).start();
}

杩欑鍐欐硶灏卞儚鍦ㄨ秴甯傛敹閾跺彴寮€鏂扮粨璐﹂€氶亾鈥斺€斺€?strong>鈥嬬湅浼艰В鍐抽棶棰橈紝瀹為檯鍒堕€犳洿澶氭贩涔扁€?/strong>鈥嬨€?/p>

鉁?鈥?strong>鈥嬫纭墦寮€鏂瑰紡鈥?/strong>鈥嬶紙绾跨▼姹犱笁瑕佺礌锛夛細

1. 鈥?strong>鈥嬫牳蹇冪嚎绋嬫暟鈥?/strong>鈥?= 鎵嬫満CPU鏍告暟脳2锛堟瘮濡?鏍告墜鏈鸿16锛?/li>
2. 鈥?strong>鈥嬬瓑寰呴槦鍒椻€?/strong>鈥?鐢⊿ynchronousQueue锛堟嫆缁濇棤鑴戝爢绉换鍔★級
3. 鈥?strong>鈥嬬嚎绋嬪懡鍚嶁€?/strong>鈥?涓€瀹氳甯︿笟鍔＄壒寰侊紒姣斿"live-switch-pool"

java澶嶅埗
// 涓撲笟閫夋墜鐨勭嚎绋嬫睜閰嶇疆
ExecutorService switchExecutor = new ThreadPoolExecutor(
    Runtime.getRuntime().availableProcessors() * 2, 
    20,
    30L, TimeUnit.SECONDS,
    new SynchronousQueue<>(),
    r -> new Thread(r, "LiveChannel-Switch-Thread")
);

鈿狅笍 鈥?strong>鈥嬩釜浜鸿鐐光€?/strong>鈥嬶細鐪嬪埌鏈変汉杩樺湪鐢ˋsyncTask灏辨兂鎷嶆瀛愶紒2023骞翠簡锛岀嚎绋嬫睜閰嶇疆寰楁牴鎹€?strong>鈥嬪叿浣撲笟鍔″満鏅€?/strong>鈥嬫潵瀹氾紝鐩存挱鍒囨崲杩欑楂橀鎿嶄綔锛屽繀椤荤敤鐙珛绾跨▼姹狅紒

鈻嶇綉缁滆姹備紭鍖栵細浣犵殑HTTP搴撳彲鑳芥鍦?纾ㄦ磱宸?

閬囧埌杩囪繖绉嶆儏鍐靛悧锛熺偣鍑诲垏鎹㈤閬撴椂锛岃繘搴︽潯璺熻湕鐗涗技鐨勫線鍓嶈弓銆傝繖鏃跺€欏叓鎴愭槸缃戠粶灞傚湪鎷栧悗鑵裤€?/p>

鈥?strong>鈥嬩笁澶ц嚧鍛戒激鈥?/strong>鈥嬶細

1. 姣忔鍒囨崲閮芥柊寤鸿繛鎺ワ紙鎻℃墜涓夋娴垂500ms+锛?/li>
2. 娌″仛DNS棰勮В鏋?/li>
3. 瓒呮椂璁剧疆澶鏉?/li>

馃挕 鈥?strong>鈥嬭В鍐虫柟妗堝寘鈥?/strong>鈥嬶細

• 鈥?strong>鈥嬭繛鎺ユ睜澶嶇敤鈥?/strong>鈥嬶紙鍍忕敤鍏氦浠ｆ浛绉佸杞︼級锛?/li>

java澶嶅埗
OkHttpClient client = new OkHttpClient.Builder()
    .connectionPool(new ConnectionPool(5, 1, TimeUnit.MINUTES))
    .build();

• 鈥?strong>鈥嬮鍔犺浇绛栫暐鈥?/strong>鈥嬶紙鎻愬墠鐚滅敤鎴疯鍒囧摢涓閬擄級锛?/li>

java澶嶅埗
// 鐢ㄦ埛鍋滅暀鍦ㄩ閬撳垪琛ㄦ椂灏卞紑濮嬮杩炴帴
fun preconnectChannels() {
    liveChannelUrls.forEach { url ->
        client.newCall(Request.Builder().url(url).build()).enqueue(null)
    }
}

• 鈥?strong>鈥嬪姩鎬佽秴鏃舵満鍒垛€?/strong>鈥嬶紙缃戠粶宸椂鍙婃椂鏀惧純娌荤枟锛夛細

java澶嶅埗
if (NetworkMonitor.is4G()) {
    timeout = 3000 // 4G鐜3绉掕秴鏃?/span>
} else {
    timeout = 5000 // WiFi鐜5绉?/span>
}

鈻峌I鍝嶅簲鎻愰€燂細鍒娓叉煋鎷栦簡鍚庤吙

灏辩畻鏁版嵁鍔犺浇鍐嶅揩锛岃鏄疷I鍗￠】鐓ф牱鐧芥惌銆傝繖閲屾湁涓湡瀹炴渚嬶細鏌愮洿鎾瑼pp浼樺寲鍚庢暟鎹姞杞戒粎闇€200ms锛屼絾鏁翠綋鎰熺煡寤惰繜浠嶆湁800ms鈥斺€斺€?strong>鈥嬪師鏉ュ崱鍦⊿urfaceView閲嶅缓涓娾€?/strong>鈥嬶紒

鈥?strong>鈥嬪繀鏉€涓夎繛鈥?/strong>鈥嬶細

1. 鈥?strong>鈥婽extureView浠ｆ浛SurfaceView鈥?/strong>鈥嬶紙澶嶇敤宸叉湁瑙嗗浘锛?/li>
2. 鈥?strong>鈥嬪崰浣嶅浘绛栫暐鈥?/strong>鈥嬶紙鍏堢敤闈欐€佸浘杩囨浮锛?/li>
3. 鈥?strong>鈥嬪叧閿抚棰勮В鏋愨€?/strong>鈥嬶紙鎻愬墠瑙ｇ爜I甯э級

java澶嶅埗
// 瑙嗗浘澶嶇敤妯℃澘
public class LivePlayerWrapper {
    private TextureView cachedView;
    
    public void switchChannel(String url) {
        if (cachedView == null) {
            cachedView = new TextureView(context);
        }
        // 閲嶇敤鐜版湁TextureView
        setupPlayer(cachedView, url);
    }
}

鈿狅笍 鈥?strong>鈥嬭娉暀璁€?/strong>鈥嬶細鍗冧竾鍒湪鍒囨崲鏃惰皟鐢?code>invalidate()锛佽繖浼氬鑷存暣涓鍥炬爲閲嶇粯锛屾兂鎯充綘瀹惰淇椂鎹釜鐏场灏辫鎷嗘暣涓埧瀛愶紝鏄笉鏄緢锠紵

鈻嶅唴瀛樼鐞嗭細鍒鎵嬫満鍙樻垚"鏆栨墜瀹?

鐩存挱搴旂敤鏈€鎬曚粈涔堬紵鍒囨崲鍑犳灏遍棯閫€锛佹垜瑙佽繃鏈€澶稿紶鐨勬儏鍐碉細姣忔鍒囨崲棰戦亾鍐呭瓨涓婃定30MB锛屽垏5娆＄洿鎺OM銆?/p>

鈥?strong>鈥嬮槻宕╂簝涓夋澘鏂р€?/strong>鈥嬶細

1. 浣跨敤WeakReference鍖呰鎾斁鍣ㄥ疄渚?/li>
2. 鍒囨崲鏃舵墜鍔ㄨЕ鍙慓C锛堣櫧鐒朵笉寤鸿浣嗙湡鐨勬湁鏁堬級
3. 寤虹珛鍐呭瓨璀︽垝绾匡細

java澶嶅埗
if (Runtime.getRuntime().freeMemory() < 100 * 1024 * 1024) {
    releaseCachedPlayers(); // 閲婃斁缂撳瓨鐨勬挱鏀惧櫒
}

鈻嶄釜浜虹璐ф椂闂?/h3>

鍋氫簡杩欎箞澶氬勾绉诲姩绔紭鍖栵紝鍙戠幇寰堝鍥㈤槦閮介櫡鍏ヤ竴涓鍖衡€斺€斺€?strong>鈥嬫妸绾跨▼姹犲拰缃戠粶浼樺寲褰撲袱涓嫭绔嬮棶棰樺鐞嗏€?/strong>鈥嬨€傚叾瀹炶繖淇╁氨鍍忚眴娴嗗拰娌规潯锛屽繀椤绘惌閰嶇潃鏉ャ€?/p>

涓句釜渚嬪瓙锛氬氨绠椾綘缃戠粶璇锋眰浼樺寲鍒?00ms瀹屾垚锛屽鏋滆繖鏃跺€欎富绾跨▼姝ｅ湪澶勭悊寮瑰箷娓叉煋锛屽垏鎹㈡搷浣滅収鏍蜂細鍗′綇銆傝繖鏃跺€欏氨闇€瑕侊細

1. 缁欑綉缁滆姹傜嚎绋嬭缃洿楂樼殑浼樺厛绾?/li>
2. 鍦ㄤ富绾跨▼绻佸繖鏃跺惎鐢ㄥ鐢ㄦ覆鏌撻€氶亾
3. 鍔ㄦ€佽皟鏁磋В鐮佸櫒鐨勫伐浣滄ā寮?/li>

鏈€鍚庤鍙ュぇ瀹炶瘽锛氭兂瑕佺湡姝ｅ仛鍒?绉掑垏"锛屽緱鎶婃暣涓摼璺綋鎴愭帴鍔涜禌璺戔€斺€斺€?strong>鈥嬫瘡涓幆鑺傞兘涓嶈兘鎺夐摼瀛愨€?/strong>鈥嬨€傞偅浜涘彧鐩潃鏌愪釜鐜妭浼樺寲鐨勶紝灏卞儚鍙粰鎺ュ姏璧涚殑绗竴妫掕繍鍔ㄥ憳涔拌窇闉嬶紝鍚庨潰鍑犳鍏夌潃鑴氳窇锛岃兘蹇墠鎬紒

本文由嘻道妙招独家原创，未经允许，严禁转载