当我们尝试使用官方样本的最新媒体库0.7.0时，视频在第一帧停顿。
官方样本位于//github.com/googlecast/CastMediaPlayerStreamingDRM。
我们尝试的链接是http://9x9ch1.streamingfast.net/hls-live/livepkgr/definst/liveevent/live-ch1-2.m3u8。
HLS链接有问题吗？
控制台日志：
[24.843s] [cast.receiver.IpcChannel]发送的IPC消息：{＆＃34; namespace＆＃34;：＆＃34; urn：x-cast：com.google.cast.media＆＃34;，＆ ＃34; senderId＆＃34;：＆＃34; ：＆＃34;＆＃34;数据＆＃34;：＆＃34; {\＆＃34;类型\＆＃34; ：\＆＃34; MEDIA_STATUS \＆＃34; \＆＃34;状态\＆＃34;：[{\＆＃34; mediaSessionId \＆＃34;：1，\＆＃34; playbackRate \＆＃ 34;：1＆GT; \＆＃34; playerState \＆＃34;：\＆＃34; BUFFERING \＆＃34; \＆＃34; currentTime的\＆＃34;：0，\＆＃34; supportedMediaCommands \＆＃34;：15，\＆＃34;体积\＆＃34;：{\＆＃34;电平\＆＃34;：1，\＆＃34;静音\＆＃34;：假}， \＆＃34;媒体\＆＃34;：{\＆＃34;内容识别\＆＃34;：\＆＃34; // 9x9ch1.streamingfast.net/hls-live/livepkgr/definst /＆GT; liveevent /活ch1-2.m3u8 \＆＃34; \＆＃34;流类型\＆＃34;：\＆＃34;缓冲\＆＃34; \＆＃34;的contentType \＆＃34;：\＆＃34;视频/ MP4 \＆＃34; \＆＃34;持续时间\＆＃34;：空}}]，\＆＃34;的requestId \＆＃34;：23248020 }＆＃34;} cast_receiver.js：18 [24.667s] [cast.player.api.Player] loadedmetadata media_player.js：24
###媒体元素数据加载mpl.js：61{} mpl.js：103 [25.049s] [cast.receiver.IpcChannel]已发送IPC消息：{＆＃34;名称空间＆＃34;：＆＃34; urn：x-cast：com.google.cast.sample.mediaplayer＆＃34;，＆＃ 34; senderId＆＃34;：＆＃34; ：＆＃34;＆＃34;数据＆＃34;：＆＃34; {\＆＃34; video_bitrates \＆＃34 ;: [0]}＆＃34;} cast_receiver.js：18
###媒体元素可以播放mpl.js：129[24.882s] [cast.player.api.Player]玩 media_player.js：24
###媒体元素播放mpl.js：139[25.249s] [goog.net.XhrIo]请求完成[获取//9x9ch1.streamingfast.net/hls-live/streams/livepkgr/events/definst/liveevent/live-ch1 -2Num505727.ts 200] media_player.js：24 [25.259s] [cast.player.core.QualityManager] 0：当前= 4195699.16，平均= 4789802.98 media_player.js：24 [25.276s] [cast.player.core.SourceBufferManager] adjustTime：8：7.822999954223633 media_player.js：24 [25.278s] [cast.player.core.SourceBufferManager] 0：追加 media_player.js：24 [25.531s] [goog.net.XhrIo]开放Xhr [GET //9x9ch1.streamingfast.net/hls-live/streams/livepkgr/events/definst/liveevent/live-ch1-2Num505728。 ts -1] media_player.js：24 [25.536s] [goog.net.XhrIo]如果不完整将在24000ms后中止，xhr2 false [GET //9x9ch1.streamingfast.net/hls-live/streams/livepkgr/events/definst/liveevent /live-ch1-2Num505728.ts -1] media_player.js：24 [25.542s] [goog.net.XhrIo]发送请求[GET //9x9ch1.streamingfast.net/hls-live/streams/livepkgr/events/definst/liveevent/live-ch1-2Num505728。 ts -1] media_player.js：24 [25.560s] [cast.player.core.SourceBufferManager] 0：0 - 15.89799976348877 media_player.js：24 [25.567s] [cast.player.core.SourceBufferManager] 0：updateend media_player.js：24 [25.894s] [cast.receiver.MediaManager]缓冲状态改变了，isPlayerBuffering：false旧时间：0当前时间：0.349 cast_receiver.js：18 [25.916s] [cast.receiver.MediaManager]发送广播状态消息 cast_receiver.js：18 [25.929s] [cast.receiver.IpcChannel]发送的IPC消息：{＆＃34; namespace＆＃34;：＆＃34; urn：x-cast：com.google.cast.media＆＃34;，＆＃34; senderId＆＃34;：＆＃34; ：＆＃34;＆＃34;数据＆＃34;：＆＃34; {\＆＃34;类型\＆＃34;：\＆ ＃34; MEDIA_STATUS \＆＃34; \＆＃34;状态\＆＃34;：[{\＆＃34; mediaSessionId \＆＃34;：1，\＆＃34; playbackRate \＆＃34 ;: 1 GT; \＆＃34; playerState \＆＃34;：\＆＃34; PLAYING \＆＃34; \＆＃34; currentTime的\＆＃34;：0.349，\＆＃34; supportedMediaCommands \＆＃ 34;：15，\＆＃34;体积\＆＃34;：{\＆＃34;电平\＆＃34;：1，\＆＃34;静音\＆＃34;：假}}]，\ ＆＃34;的requestId \＆＃34;：0}＆＃34;} cast_receiver.js：18 [26.543s] [goog.net.XhrIo]请求完成[GET //9x9ch1.streamingfast.net/hls-live/streams/livepkgr/events/definst/liveevent/live-ch1-2Num505728。 ts 200] media_player.js：24 [26.548s] [cast.player.core.QualityManager] 0：当前= 6509453.83，平均= 5993558.58 media_player.js：24 [26.554s] [cast.player.core.SourceBufferManager] adjustTime：16：15.89799976348877 media_player.js：24 [26.555s] [cast.player.core.SourceBufferManager] 0：追加 media_player.js：24 [26.668s] [cast.player.core.SourceBufferManager] 0：0 - 23.839000701904297 media_player.js：24 [26.673s] [cast.player.core.SourceBufferManager] 0：updateend media_player.js：24 [26.908s] [cast.receiver.MediaManager]缓冲状态已更改，isPlayerBuffering：true旧时间：0.349当前时间：0.349 cast_receiver.js：18 [26.909s] [cast.receiver.MediaManager]发送广播状态消息 cast_receiver.js：18 [26.912s] [cast.receiver.IpcChannel]发送的IPC消息：{＆＃34; namespace＆＃34;：＆＃34; urn：x-cast：com.google.cast.media＆＃34;，＆＃34; senderId＆＃34;：＆＃34; ：＆＃34;＆＃34;数据＆＃34;：＆＃34; {\＆＃34;类型\＆＃34;：\＆ ＃34; MEDIA_STATUS \＆＃34; \＆＃34;状态\＆＃34;：[{\＆＃34; mediaSessionId \＆＃34;：1，\＆＃34; playbackRate \＆＃34 ;: 1 GT; \＆＃34; playerState \＆＃34;：\＆＃34; BUFFERING \＆＃34; \＆＃34; currentTime的\＆＃34;：0.349，\＆＃34; supportedMediaCommands \＆＃ 34;：15，\＆＃34;体积\＆＃34;：{\＆＃34;电平\＆＃34;：1，\＆＃34;静音\＆＃34;：假}}]，\ ＆＃34;的requestId \＆＃34;：0}＆＃34;} cast_receiver.js：18
### MEDIA ELEMENT STALLED mpl.js：148[30.855s] [cast.player.hls.Playlist] update：//9x9ch1.streamingfast.net/hls-live/livepkgr/definst/liveevent/live-ch1-2.m3u8 media_player.js：24 [30.858s] [goog.net.XhrIo]开放Xhr [GET //9x9ch1.streamingfast.net/hls-live/livepkgr/definst/liveevent/live-ch1-2.m3u8 -1] media_player.js：24 [30.861s] [goog.net.XhrIo]如果不完整则会在30000ms后中止，xhr2 false [GET //9x9ch1.streamingfast.net/hls-live/livepkgr/definst/liveevent/live-ch1 -2.m3u8 -1] media_player.js：24 [30.863s] [goog.net.XhrIo]发送请求[GET //9x9ch1.streamingfast.net/hls-live/livepkgr/definst/liveevent/live-ch1-2.m3u8 -1] media_player.js：24 [30.962s] [goog.net.XhrIo]请求完成[获取//9x9ch1.streamingfast.net/hls-live/livepkgr/definst/liveevent/live-ch1-2.m3u8 200] media_player.js：24 [30.982s] [cast.player.hls.Playlist]更新于：8000 media_player.js：24 [38.995s] [cast.player.hls.Playlist]更新：//9x9ch1.streamingfast.net/hls-live/livepkgr/definst/liveevent/live-ch1-2.m3u8 media_player.js：24 [39.002s] [goog.net.XhrIo]开放Xhr [GET //9x9ch1.streamingfast.net/hls-live/livepkgr/definst/liveevent/live-ch1-2.m3u8 -1] media_player.js：24 [39.009s] [goog.net.XhrIo]如果不完整则会在30000ms后中止，xhr2 false [GET //9x9ch1.streamingfast.net/hls-live/livepkgr/definst/liveevent/live-ch1 -2.m3u8 -1] media_player.js：24 [39.012s] [goog.net.XhrIo]发送请求[GET //9x9ch1.streamingfast.net/hls-live/livepkgr/definst/liveevent/live-ch1-2.m3u8 -1] media_player.js：24 [39.083s] [goog.net.XhrIo]请求完成[获取//9x9ch1.streamingfast.net/hls-live/livepkgr/definst/liveevent/live-ch1-2.m3u8 200] media_player.js：24 [39.120s] [cast.player.hls.Playlist]更新于：8000 media_player.js：24 [47.135s] [cast.player.hls.Playlist]更新：//9x9ch1.streamingfast.net/hls-live/livepkgr/definst/liveevent/live-ch1-2.m3u8 media_player.js：24 [47.140s] [goog.net.XhrIo]开放Xhr [GET //9x9ch1.streamingfast.net/hls-live/livepkgr/definst/liveevent/live-ch1-2.m3u8 -1] media_player.js：24 [47.145s] [goog.net.XhrIo]如果不完整将在30000ms后中止，xhr2 false [GET //9x9ch1.streamingfast.net/hls-live/livepkgr/definst/liveevent/live-ch1 -2.m3u8 -1] media_player.js：24 [47.150s] [goog.net.XhrIo]发送请求[GET //9x9ch1.streamingfast.net/hls-live/livepkgr/definst/liveevent/live-ch1-2.m3u8 -1] media_player.js：24 [47.256s] [goog.net.XhrIo]请求完成[获取//9x9ch1.streamingfast.net/hls-live/livepkgr/definst/liveevent/live-ch1-2.m3u8 200] media_player.js：24 [47.290s] [cast.player.hls.Playlist]更新于：8000 media_player.js：24 [47.295s] [cast.player.hls.PlaylistIterator]更新：505728在新播放列表中找不到
谢谢！