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Chromecast自定义接收器JPG加载(Chromecast Custom Receiver JPG loading)

 我无法将简单的JPG或PNG文件转换为chromecast设备。 我一直收到错误消息  
[cast.receiver.MediaManager] Load metadata error
 
 我甚至尝试使用Google的示例“sample_media_receiver.html”和“web_sender_tool.html”，但没有成功。  
 像MP4甚至HLS这样的视频文件可以正常工作，但不是简单的图像。 在默认接收器中，图像正常工作，但不在自定义接收器中。  
 我尝试了不同的元数据值，没有任何元数据 - 没有任何帮助。  
 这是chromecast控制台的日志（有工作的MP4而不是工作JPG）：  
### Application Loaded. Starting system. sample_media_receiver.html:605
 [  0.285s] [cast.receiver.IpcChannel] Opening message bus websocket
 cast_receiver.js:19
 [  0.297s] [goog.net.WebSocket] Opening the WebSocket on ws://localhost:8008/v2/ipc
 cast_receiver.js:19
 [  0.369s] [goog.net.WebSocket] WebSocket opened on ws://localhost:8008/v2/ipc
 cast_receiver.js:19
 [  0.380s] [cast.receiver.IpcChannel] IpcChannel opened
 cast_receiver.js:19
 [  0.393s] [cast.receiver.CastMessageBus] Dispatching CastMessageBus message [urn:x-cast:com.google.cast.system, SystemSender]: {"type":"opened"}
 cast_receiver.js:19
 [  0.408s] [cast.receiver.CastReceiverManager] CastReceiverManager message received: [object Object]
 cast_receiver.js:19
 [  0.410s] [cast.receiver.CastReceiverManager] Underlying message bus is open
 cast_receiver.js:19
 [  0.413s] [cast.receiver.IpcChannel] IPC message sent: {"namespace":"urn:x-cast:com.google.cast.system","senderId":"SystemSender","data":"{\"type\":\"ready\",\"statusText\":\"Ready to play\",\"activeNamespaces\":[\"urn:x-cast:com.google.devrel.custom\",\"urn:x-cast:com.google.cast.media\"],\"version\":\"2.0.0\",\"messagesVersion\":\"1.0\"}"}
 cast_receiver.js:19
 [  0.421s] [cast.receiver.IpcChannel] IPC message sent: {"namespace":"urn:x-cast:com.google.cast.system","senderId":"SystemSender","data":"{\"type\":\"startheartbeat\",\"maxInactivity\":6000}"}
 cast_receiver.js:19
 [  0.440s] [cast.receiver.IpcChannel] Received message: {"data":"{\"applicationId\":\"XXXXXXX\",\"applicationName\":\"MDTest\",\"launchingSenderId\":\"8:client-68103\",\"messagesVersion\":\"1.0\",\"sessionId\":\"2A80FF6F-F9B2-4D78-D99A-997CF6FC2F69\",\"type\":\"ready\",\"version\":\"1.0\"}","namespace":"urn:x-cast:com.google.cast.system","senderId":"SystemSender"}
 cast_receiver.js:19
 [  0.443s] [cast.receiver.CastMessageBus] Dispatching CastMessageBus message [urn:x-cast:com.google.cast.system, SystemSender]: {"applicationId":"XXXXXXXX","applicationName":"MDTest","launchingSenderId":"8:client-68103","messagesVersion":"1.0","sessionId":"2A80FF6F-F9B2-4D78-D99A-997CF6FC2F69","type":"ready","version":"1.0"}
 cast_receiver.js:19
 [  0.446s] [cast.receiver.CastReceiverManager] CastReceiverManager message received: [object Object]
 cast_receiver.js:19
 [  0.448s] [cast.receiver.CastReceiverManager] Dispatching CastReceiverManager system ready event [[object Object]]
 cast_receiver.js:19
### Cast Receiver Manager is READY:  sample_media_receiver.html:204
 [  0.567s] [cast.receiver.IpcChannel] Received message: {"data":"{\"senderId\":\"8:client-68103\",\"type\":\"senderconnected\",\"userAgent\":\"\"}","namespace":"urn:x-cast:com.google.cast.system","senderId":"SystemSender"}
 cast_receiver.js:19
 [  0.570s] [cast.receiver.CastMessageBus] Dispatching CastMessageBus message [urn:x-cast:com.google.cast.system, SystemSender]: {"senderId":"8:client-68103","type":"senderconnected","userAgent":""}
 cast_receiver.js:19
 [  0.572s] [cast.receiver.CastReceiverManager] CastReceiverManager message received: [object Object]
 cast_receiver.js:19
 [  0.574s] [cast.receiver.CastReceiverManager] Dispatching CastReceiverManager sender connected event [8:client-68103]
 cast_receiver.js:19
 [  0.576s] [cast.receiver.CastMessageBus] Registering sender [urn:x-cast:com.google.devrel.custom, 8:client-68103]
 cast_receiver.js:19
 [  0.578s] [cast.receiver.CastMessageBus] Registering sender [urn:x-cast:com.google.cast.media, 8:client-68103]
 cast_receiver.js:19
### Cast Receiver Manager - Sender Connected :  sample_media_receiver.html:217
 [ 17.252s] [cast.receiver.IpcChannel] Received message: {"data":"{\"type\":\"LOAD\",\"requestId\":28532030,\"sessionId\":\"2A80FF6F-F9B2-4D78-D99A-997CF6FC2F69\",\"media\":{\"contentId\":\"http://192.168.0.103/~marco/cast/video0.mp4\",\"streamType\":\"buffered\",\"contentType\":\"video/mp4\",\"metadata\":null,\"duration\":null,\"customData\":null},\"autoplay\":true,\"currentTime\":null,\"customData\":null}","namespace":"urn:x-cast:com.google.cast.media","senderId":"8:client-68103"}
 cast_receiver.js:19
 [ 17.255s] [cast.receiver.CastMessageBus] Dispatching CastMessageBus message [urn:x-cast:com.google.cast.media, 8:client-68103]: {"type":"LOAD","requestId":28532030,"sessionId":"2A80FF6F-F9B2-4D78-D99A-997CF6FC2F69","media":{"contentId":"http://192.168.0.103/~marco/cast/video0.mp4","streamType":"buffered","contentType":"video/mp4","metadata":null,"duration":null,"customData":null},"autoplay":true,"currentTime":null,"customData":null}
 cast_receiver.js:19
 [ 17.258s] [cast.receiver.MediaManager] MediaManager message received [8:client-68103] {"type":"LOAD","requestId":28532030,"sessionId":"2A80FF6F-F9B2-4D78-D99A-997CF6FC2F69","media":{"contentId":"http://192.168.0.103/~marco/cast/video0.mp4","streamType":"buffered","contentType":"video/mp4","metadata":null,"duration":null,"customData":null},"autoplay":true,"currentTime":null,"customData":null}
 cast_receiver.js:19
 [ 17.259s] [cast.receiver.MediaManager] Dispatching MediaManager load event
 cast_receiver.js:19
### Media Manager - LOAD: {"type":"load","B":false,"defaultPrevented":false,"Qa":true,"data":{"requestId":28532030,"sessionId":"2A80FF6F-F9B2-4D78-D99A-997CF6FC2F69","media":{"contentId":"http://192.168.0.103/~marco/cast/video0.mp4","streamType":"buffered","contentType":"video/mp4","metadata":null,"duration":null,"customData":null},"autoplay":true,"currentTime":null,"customData":null},"senderId":"8:client-68103"} sample_media_receiver.html:549
### Media Protocol Identified as mp4 sample_media_receiver.html:588
######### MEDIA ELEMENT LOAD START sample_media_receiver.html:121
 [ 18.270s] [cast.receiver.MediaManager] Metadata loaded
 cast_receiver.js:19
 [ 18.286s] [cast.receiver.MediaManager] Sending broadcast status message
 cast_receiver.js:19
 [ 18.300s] [cast.receiver.IpcChannel] IPC message sent: {"namespace":"urn:x-cast:com.google.cast.media","senderId":"*:*","data":"{\"type\":\"MEDIA_STATUS\",\"status\":[{\"mediaSessionId\":1,\"playbackRate\":1,\"playerState\":\"BUFFERING\",\"currentTime\":0,\"supportedMediaCommands\":15,\"volume\":{\"level\":1,\"muted\":false},\"media\":{\"contentId\":\"http://192.168.0.103/~marco/cast/video0.mp4\",\"streamType\":\"buffered\",\"contentType\":\"video/mp4\",\"metadata\":null,\"duration\":8.057324,\"customData\":null}}],\"requestId\":28532030}"}
 cast_receiver.js:19
######### MEDIA ELEMENT DATA LOADED sample_media_receiver.html:125
######### MEDIA ELEMENT CAN PLAY sample_media_receiver.html:129
######### MEDIA ELEMENT PLAYING sample_media_receiver.html:137
 [ 20.625s] [cast.receiver.MediaManager] Buffering state changed, isPlayerBuffering: false old time: 0.083322 current time: 1.125
 cast_receiver.js:19
 [ 20.627s] [cast.receiver.MediaManager] Sending broadcast status message
 cast_receiver.js:19
 [ 20.630s] [cast.receiver.IpcChannel] IPC message sent: {"namespace":"urn:x-cast:com.google.cast.media","senderId":"*:*","data":"{\"type\":\"MEDIA_STATUS\",\"status\":[{\"mediaSessionId\":1,\"playbackRate\":1,\"playerState\":\"PLAYING\",\"currentTime\":1.125,\"supportedMediaCommands\":15,\"volume\":{\"level\":1,\"muted\":false}}],\"requestId\":0}"}
 cast_receiver.js:19
######### MEDIA ELEMENT ENDED sample_media_receiver.html:133
### Media Manager - ENDED:  sample_media_receiver.html:347
 [ 27.445s] [cast.receiver.MediaManager] Resetting media element
 cast_receiver.js:19
 [ 27.579s] [cast.receiver.MediaManager] Sending broadcast status message
 cast_receiver.js:19
 [ 27.581s] [cast.receiver.IpcChannel] IPC message sent: {"namespace":"urn:x-cast:com.google.cast.media","senderId":"*:*","data":"{\"type\":\"MEDIA_STATUS\",\"status\":[{\"mediaSessionId\":1,\"playbackRate\":1,\"playerState\":\"IDLE\",\"currentTime\":0,\"supportedMediaCommands\":15,\"volume\":{\"level\":1,\"muted\":false},\"idleReason\":\"FINISHED\"}],\"requestId\":0}"}
 cast_receiver.js:19
######### MEDIA ELEMENT ABORT [object Event] sample_media_receiver.html:153
 [ 31.019s] [cast.receiver.IpcChannel] Received message: {"data":"{\"type\":\"LOAD\",\"requestId\":28532031,\"sessionId\":\"2A80FF6F-F9B2-4D78-D99A-997CF6FC2F69\",\"media\":{\"contentId\":\"http://192.168.0.103/~marco/cast/myimage.jpg\",\"streamType\":\"buffered\",\"contentType\":\"image/jpg\",\"metadata\":null,\"duration\":null,\"customData\":null},\"autoplay\":true,\"currentTime\":null,\"customData\":null}","namespace":"urn:x-cast:com.google.cast.media","senderId":"8:client-68103"}
 cast_receiver.js:19
 [ 31.028s] [cast.receiver.CastMessageBus] Dispatching CastMessageBus message [urn:x-cast:com.google.cast.media, 8:client-68103]: {"type":"LOAD","requestId":28532031,"sessionId":"2A80FF6F-F9B2-4D78-D99A-997CF6FC2F69","media":{"contentId":"http://192.168.0.103/~marco/cast/myimage.jpg","streamType":"buffered","contentType":"image/jpg","metadata":null,"duration":null,"customData":null},"autoplay":true,"currentTime":null,"customData":null}
 cast_receiver.js:19
 [ 31.031s] [cast.receiver.MediaManager] MediaManager message received [8:client-68103] {"type":"LOAD","requestId":28532031,"sessionId":"2A80FF6F-F9B2-4D78-D99A-997CF6FC2F69","media":{"contentId":"http://192.168.0.103/~marco/cast/myimage.jpg","streamType":"buffered","contentType":"image/jpg","metadata":null,"duration":null,"customData":null},"autoplay":true,"currentTime":null,"customData":null}
 cast_receiver.js:19
 [ 31.033s] [cast.receiver.MediaManager] Dispatching MediaManager load event
 cast_receiver.js:19
### Media Manager - LOAD: {"type":"load","B":false,"defaultPrevented":false,"Qa":true,"data":{"requestId":28532031,"sessionId":"2A80FF6F-F9B2-4D78-D99A-997CF6FC2F69","media":{"contentId":"http://192.168.0.103/~marco/cast/myimage.jpg","streamType":"buffered","contentType":"image/jpg","metadata":null,"duration":null,"customData":null},"autoplay":true,"currentTime":null,"customData":null},"senderId":"8:client-68103"} sample_media_receiver.html:549
### Media Protocol Identified as jpg sample_media_receiver.html:588
######### MEDIA ELEMENT LOAD START sample_media_receiver.html:121
######### MEDIA ELEMENT ERROR [object Event] sample_media_receiver.html:149
 [ 31.293s] [cast.receiver.MediaManager] Load metadata error
 cast_receiver.js:19
### Media Manager - LOAD METADATA ERROR: {"senderId":"8:client-68103","message":{"requestId":28532031,"sessionId":"2A80FF6F-F9B2-4D78-D99A-997CF6FC2F69","media":{"contentId":"http://192.168.0.103/~marco/cast/myimage.jpg","streamType":"buffered","contentType":"image/jpg","metadata":null,"duration":null,"customData":null},"autoplay":true,"currentTime":null,"customData":null}} sample_media_receiver.html:399
 [ 31.297s] [cast.receiver.MediaManager] Resetting media element
 cast_receiver.js:19
 [ 31.303s] [cast.receiver.MediaManager] Sending error message to 8:client-68103
 cast_receiver.js:19
 [ 31.305s] [cast.receiver.IpcChannel] IPC message sent: {"namespace":"urn:x-cast:com.google.cast.media","senderId":"8:client-68103","data":"{\"requestId\":28532031,\"type\":\"LOAD_FAILED\"}"}
 
 哪里不对？ 

I am not able to cast a simple JPG or PNG file to chromecast device. I keep getting the error message  
[cast.receiver.MediaManager] Load metadata error
 
I even tried it with Google's examples "sample_media_receiver.html" and "web_sender_tool.html", but without success. 
Video files like MP4 or even HLS work fine, but not an simple image. Altough in the default receiver the images are working, but not in the custom receiver. 
I tried with different values of metadata and without any metadata - nothing helps. 
Here is the log of the chromecast console (with working MP4 and not working JPG): 
### Application Loaded. Starting system. sample_media_receiver.html:605
 [  0.285s] [cast.receiver.IpcChannel] Opening message bus websocket
 cast_receiver.js:19
 [  0.297s] [goog.net.WebSocket] Opening the WebSocket on ws://localhost:8008/v2/ipc
 cast_receiver.js:19
 [  0.369s] [goog.net.WebSocket] WebSocket opened on ws://localhost:8008/v2/ipc
 cast_receiver.js:19
 [  0.380s] [cast.receiver.IpcChannel] IpcChannel opened
 cast_receiver.js:19
 [  0.393s] [cast.receiver.CastMessageBus] Dispatching CastMessageBus message [urn:x-cast:com.google.cast.system, SystemSender]: {"type":"opened"}
 cast_receiver.js:19
 [  0.408s] [cast.receiver.CastReceiverManager] CastReceiverManager message received: [object Object]
 cast_receiver.js:19
 [  0.410s] [cast.receiver.CastReceiverManager] Underlying message bus is open
 cast_receiver.js:19
 [  0.413s] [cast.receiver.IpcChannel] IPC message sent: {"namespace":"urn:x-cast:com.google.cast.system","senderId":"SystemSender","data":"{\"type\":\"ready\",\"statusText\":\"Ready to play\",\"activeNamespaces\":[\"urn:x-cast:com.google.devrel.custom\",\"urn:x-cast:com.google.cast.media\"],\"version\":\"2.0.0\",\"messagesVersion\":\"1.0\"}"}
 cast_receiver.js:19
 [  0.421s] [cast.receiver.IpcChannel] IPC message sent: {"namespace":"urn:x-cast:com.google.cast.system","senderId":"SystemSender","data":"{\"type\":\"startheartbeat\",\"maxInactivity\":6000}"}
 cast_receiver.js:19
 [  0.440s] [cast.receiver.IpcChannel] Received message: {"data":"{\"applicationId\":\"XXXXXXX\",\"applicationName\":\"MDTest\",\"launchingSenderId\":\"8:client-68103\",\"messagesVersion\":\"1.0\",\"sessionId\":\"2A80FF6F-F9B2-4D78-D99A-997CF6FC2F69\",\"type\":\"ready\",\"version\":\"1.0\"}","namespace":"urn:x-cast:com.google.cast.system","senderId":"SystemSender"}
 cast_receiver.js:19
 [  0.443s] [cast.receiver.CastMessageBus] Dispatching CastMessageBus message [urn:x-cast:com.google.cast.system, SystemSender]: {"applicationId":"XXXXXXXX","applicationName":"MDTest","launchingSenderId":"8:client-68103","messagesVersion":"1.0","sessionId":"2A80FF6F-F9B2-4D78-D99A-997CF6FC2F69","type":"ready","version":"1.0"}
 cast_receiver.js:19
 [  0.446s] [cast.receiver.CastReceiverManager] CastReceiverManager message received: [object Object]
 cast_receiver.js:19
 [  0.448s] [cast.receiver.CastReceiverManager] Dispatching CastReceiverManager system ready event [[object Object]]
 cast_receiver.js:19
### Cast Receiver Manager is READY:  sample_media_receiver.html:204
 [  0.567s] [cast.receiver.IpcChannel] Received message: {"data":"{\"senderId\":\"8:client-68103\",\"type\":\"senderconnected\",\"userAgent\":\"\"}","namespace":"urn:x-cast:com.google.cast.system","senderId":"SystemSender"}
 cast_receiver.js:19
 [  0.570s] [cast.receiver.CastMessageBus] Dispatching CastMessageBus message [urn:x-cast:com.google.cast.system, SystemSender]: {"senderId":"8:client-68103","type":"senderconnected","userAgent":""}
 cast_receiver.js:19
 [  0.572s] [cast.receiver.CastReceiverManager] CastReceiverManager message received: [object Object]
 cast_receiver.js:19
 [  0.574s] [cast.receiver.CastReceiverManager] Dispatching CastReceiverManager sender connected event [8:client-68103]
 cast_receiver.js:19
 [  0.576s] [cast.receiver.CastMessageBus] Registering sender [urn:x-cast:com.google.devrel.custom, 8:client-68103]
 cast_receiver.js:19
 [  0.578s] [cast.receiver.CastMessageBus] Registering sender [urn:x-cast:com.google.cast.media, 8:client-68103]
 cast_receiver.js:19
### Cast Receiver Manager - Sender Connected :  sample_media_receiver.html:217
 [ 17.252s] [cast.receiver.IpcChannel] Received message: {"data":"{\"type\":\"LOAD\",\"requestId\":28532030,\"sessionId\":\"2A80FF6F-F9B2-4D78-D99A-997CF6FC2F69\",\"media\":{\"contentId\":\"http://192.168.0.103/~marco/cast/video0.mp4\",\"streamType\":\"buffered\",\"contentType\":\"video/mp4\",\"metadata\":null,\"duration\":null,\"customData\":null},\"autoplay\":true,\"currentTime\":null,\"customData\":null}","namespace":"urn:x-cast:com.google.cast.media","senderId":"8:client-68103"}
 cast_receiver.js:19
 [ 17.255s] [cast.receiver.CastMessageBus] Dispatching CastMessageBus message [urn:x-cast:com.google.cast.media, 8:client-68103]: {"type":"LOAD","requestId":28532030,"sessionId":"2A80FF6F-F9B2-4D78-D99A-997CF6FC2F69","media":{"contentId":"http://192.168.0.103/~marco/cast/video0.mp4","streamType":"buffered","contentType":"video/mp4","metadata":null,"duration":null,"customData":null},"autoplay":true,"currentTime":null,"customData":null}
 cast_receiver.js:19
 [ 17.258s] [cast.receiver.MediaManager] MediaManager message received [8:client-68103] {"type":"LOAD","requestId":28532030,"sessionId":"2A80FF6F-F9B2-4D78-D99A-997CF6FC2F69","media":{"contentId":"http://192.168.0.103/~marco/cast/video0.mp4","streamType":"buffered","contentType":"video/mp4","metadata":null,"duration":null,"customData":null},"autoplay":true,"currentTime":null,"customData":null}
 cast_receiver.js:19
 [ 17.259s] [cast.receiver.MediaManager] Dispatching MediaManager load event
 cast_receiver.js:19
### Media Manager - LOAD: {"type":"load","B":false,"defaultPrevented":false,"Qa":true,"data":{"requestId":28532030,"sessionId":"2A80FF6F-F9B2-4D78-D99A-997CF6FC2F69","media":{"contentId":"http://192.168.0.103/~marco/cast/video0.mp4","streamType":"buffered","contentType":"video/mp4","metadata":null,"duration":null,"customData":null},"autoplay":true,"currentTime":null,"customData":null},"senderId":"8:client-68103"} sample_media_receiver.html:549
### Media Protocol Identified as mp4 sample_media_receiver.html:588
######### MEDIA ELEMENT LOAD START sample_media_receiver.html:121
 [ 18.270s] [cast.receiver.MediaManager] Metadata loaded
 cast_receiver.js:19
 [ 18.286s] [cast.receiver.MediaManager] Sending broadcast status message
 cast_receiver.js:19
 [ 18.300s] [cast.receiver.IpcChannel] IPC message sent: {"namespace":"urn:x-cast:com.google.cast.media","senderId":"*:*","data":"{\"type\":\"MEDIA_STATUS\",\"status\":[{\"mediaSessionId\":1,\"playbackRate\":1,\"playerState\":\"BUFFERING\",\"currentTime\":0,\"supportedMediaCommands\":15,\"volume\":{\"level\":1,\"muted\":false},\"media\":{\"contentId\":\"http://192.168.0.103/~marco/cast/video0.mp4\",\"streamType\":\"buffered\",\"contentType\":\"video/mp4\",\"metadata\":null,\"duration\":8.057324,\"customData\":null}}],\"requestId\":28532030}"}
 cast_receiver.js:19
######### MEDIA ELEMENT DATA LOADED sample_media_receiver.html:125
######### MEDIA ELEMENT CAN PLAY sample_media_receiver.html:129
######### MEDIA ELEMENT PLAYING sample_media_receiver.html:137
 [ 20.625s] [cast.receiver.MediaManager] Buffering state changed, isPlayerBuffering: false old time: 0.083322 current time: 1.125
 cast_receiver.js:19
 [ 20.627s] [cast.receiver.MediaManager] Sending broadcast status message
 cast_receiver.js:19
 [ 20.630s] [cast.receiver.IpcChannel] IPC message sent: {"namespace":"urn:x-cast:com.google.cast.media","senderId":"*:*","data":"{\"type\":\"MEDIA_STATUS\",\"status\":[{\"mediaSessionId\":1,\"playbackRate\":1,\"playerState\":\"PLAYING\",\"currentTime\":1.125,\"supportedMediaCommands\":15,\"volume\":{\"level\":1,\"muted\":false}}],\"requestId\":0}"}
 cast_receiver.js:19
######### MEDIA ELEMENT ENDED sample_media_receiver.html:133
### Media Manager - ENDED:  sample_media_receiver.html:347
 [ 27.445s] [cast.receiver.MediaManager] Resetting media element
 cast_receiver.js:19
 [ 27.579s] [cast.receiver.MediaManager] Sending broadcast status message
 cast_receiver.js:19
 [ 27.581s] [cast.receiver.IpcChannel] IPC message sent: {"namespace":"urn:x-cast:com.google.cast.media","senderId":"*:*","data":"{\"type\":\"MEDIA_STATUS\",\"status\":[{\"mediaSessionId\":1,\"playbackRate\":1,\"playerState\":\"IDLE\",\"currentTime\":0,\"supportedMediaCommands\":15,\"volume\":{\"level\":1,\"muted\":false},\"idleReason\":\"FINISHED\"}],\"requestId\":0}"}
 cast_receiver.js:19
######### MEDIA ELEMENT ABORT [object Event] sample_media_receiver.html:153
 [ 31.019s] [cast.receiver.IpcChannel] Received message: {"data":"{\"type\":\"LOAD\",\"requestId\":28532031,\"sessionId\":\"2A80FF6F-F9B2-4D78-D99A-997CF6FC2F69\",\"media\":{\"contentId\":\"http://192.168.0.103/~marco/cast/myimage.jpg\",\"streamType\":\"buffered\",\"contentType\":\"image/jpg\",\"metadata\":null,\"duration\":null,\"customData\":null},\"autoplay\":true,\"currentTime\":null,\"customData\":null}","namespace":"urn:x-cast:com.google.cast.media","senderId":"8:client-68103"}
 cast_receiver.js:19
 [ 31.028s] [cast.receiver.CastMessageBus] Dispatching CastMessageBus message [urn:x-cast:com.google.cast.media, 8:client-68103]: {"type":"LOAD","requestId":28532031,"sessionId":"2A80FF6F-F9B2-4D78-D99A-997CF6FC2F69","media":{"contentId":"http://192.168.0.103/~marco/cast/myimage.jpg","streamType":"buffered","contentType":"image/jpg","metadata":null,"duration":null,"customData":null},"autoplay":true,"currentTime":null,"customData":null}
 cast_receiver.js:19
 [ 31.031s] [cast.receiver.MediaManager] MediaManager message received [8:client-68103] {"type":"LOAD","requestId":28532031,"sessionId":"2A80FF6F-F9B2-4D78-D99A-997CF6FC2F69","media":{"contentId":"http://192.168.0.103/~marco/cast/myimage.jpg","streamType":"buffered","contentType":"image/jpg","metadata":null,"duration":null,"customData":null},"autoplay":true,"currentTime":null,"customData":null}
 cast_receiver.js:19
 [ 31.033s] [cast.receiver.MediaManager] Dispatching MediaManager load event
 cast_receiver.js:19
### Media Manager - LOAD: {"type":"load","B":false,"defaultPrevented":false,"Qa":true,"data":{"requestId":28532031,"sessionId":"2A80FF6F-F9B2-4D78-D99A-997CF6FC2F69","media":{"contentId":"http://192.168.0.103/~marco/cast/myimage.jpg","streamType":"buffered","contentType":"image/jpg","metadata":null,"duration":null,"customData":null},"autoplay":true,"currentTime":null,"customData":null},"senderId":"8:client-68103"} sample_media_receiver.html:549
### Media Protocol Identified as jpg sample_media_receiver.html:588
######### MEDIA ELEMENT LOAD START sample_media_receiver.html:121
######### MEDIA ELEMENT ERROR [object Event] sample_media_receiver.html:149
 [ 31.293s] [cast.receiver.MediaManager] Load metadata error
 cast_receiver.js:19
### Media Manager - LOAD METADATA ERROR: {"senderId":"8:client-68103","message":{"requestId":28532031,"sessionId":"2A80FF6F-F9B2-4D78-D99A-997CF6FC2F69","media":{"contentId":"http://192.168.0.103/~marco/cast/myimage.jpg","streamType":"buffered","contentType":"image/jpg","metadata":null,"duration":null,"customData":null},"autoplay":true,"currentTime":null,"customData":null}} sample_media_receiver.html:399
 [ 31.297s] [cast.receiver.MediaManager] Resetting media element
 cast_receiver.js:19
 [ 31.303s] [cast.receiver.MediaManager] Sending error message to 8:client-68103
 cast_receiver.js:19
 [ 31.305s] [cast.receiver.IpcChannel] IPC message sent: {"namespace":"urn:x-cast:com.google.cast.media","senderId":"8:client-68103","data":"{\"requestId\":28532031,\"type\":\"LOAD_FAILED\"}"}
 
What is wrong?

原文：https://stackoverflow.com/questions/21731453

更新时间：2022-05-06 14:05

最满意答案

 您可以尝试使用class="input-small" ，而不是使用class="span2"作为输入字段  
<div class="span2">
      <div class="input-append">
       <input class="input-small" type="text"><span class="add-on">&deg;C</span>
      </div>
</div>
 
 这将根据您的需要挤压输入字段的宽度。 

Instead of using class="span2" for your input fields, you can try class="input-small" like  
<div class="span2">
      <div class="input-append">
       <input class="input-small" type="text"><span class="add-on">&deg;C</span>
      </div>
</div>
 
This will squeeze the width of the input fields as desired by you..

如何在Twitter Bootstrap中创建动态宽度列(How to create a dynamic width column in Twitter Bootstrap)[2023-05-13]

表格使用旧表格标签的结构开玩笑吧 - 或者我不是。

Id	Name	Email address
100001	Joe	MamiePVillalobos@teleworm.us
100	Christine	Christine ... 如何使用twitter-bootstrap跨越从右到左？(How to use twitter-bootstrap spans from right to left?)[2023-08-07] 你可以做这样的事情：你也可以做这样的事情： You could do something like this: ... 使用Twitter Bootstrap中心一列3(Center a column using Twitter Bootstrap 3)[2022-12-27] 在Bootstrap 3中有一个列两种方法：方法1（偏移）：第一种方法使用Bootstrap自己的偏移类，因此它不需要标记更改，也不需要额外的CSS。关键是设置偏移量等于行的剩余大小的一半。因此，例如，大小为2的列将以5的偏移量为中心，即(12-2)/2 。在标记中，它看起来像：现在，这种方法有一个明显的缺点，它只适用于偶数列大小， ... twitter bootstrap prepended输入不起作用(twitter bootstrap prepended input does not work)[2021-12-10] 您正在尝试使用bootstrap 2.3.2中的代码并链接到bootstrap 3 css文件，您可以将css更改为link to link to //netdna.bootstrapcdn.com/twitter-bootstrap/2.3.2/css/bootstrap-combined.min.css 它会起作用。小提琴 You are trying to use code from bootstrap 2.3.2 and linking to the bootstrap 3 css file, ... 如何在Twitter Bootstrap的网格系统中设置列中的输入宽度？(How do I set the width of inputs within a column in Twitter Bootstrap's grid system?)[2022-08-10] 使用.span12创建一个div，并在.span5和span7中包含另一个级别的行/跨度 jQuery的 Create a div with .span12 and include another level of row/span with your .span5 and span7 jQuery twitter-bootstrap输入字段的最大宽度(twitter-bootstrap max width of input field)[2023-10-21] 编辑：自bootstrap v3以来，类已经发展，所以使用col-xx-X类来获得下面解释的结果（可能需要进一步的更改）现场演示（jsfiddle）您可以使用.row-fluid并使用.spanX使输入填充其容器： Twitter Bootstrap附加跨度，输入大于请求的列宽(Twitter Bootstrap add-on spans with input greater than requested column width)[2024-01-22] 您可以尝试使用class="input-small" ，而不是使用class="span2"作为输入字段 °C 这将根据您的需要挤压输入字段的宽度。 Instead of using class="span2 ... Twitter Bootstrap模态宽度问题(Twitter Bootstrap Modal Width issues)[2022-01-27] 您可以使用jQuery选择有问题的模态并编辑其CSS属性。使用以下方法将模态设置为屏幕宽度的90％并将其定位在屏幕的中心： $('#myModal').modal({ backdrop: true, keyboard: true, show: false }).css({ // make width 90% of screen 'width': function () { ... Twitter Bootstrap（自适应） - 某些最小宽度后的附加列(Twitter Bootstrap (Responsive) - Additional Column After Certain Min Width)[2022-05-21] 很容易做一些jQuery。添加和id到您的div并添加/删除span类和css准备好并调整大小。 ..... ..sidebar junk.. ..sidebar 2 ju ... Twitter Bootstrap 3：带验证问题的输入加载项(Twitter Bootstrap 3: Input Add-On with Validation Issue)[2022-01-16] 无需进行所有CSS修改。 Bootstrap允许您本机执行此操作： Input with success 相关文章更多 Canvas上的画出来的东西怎么存储jpg/png图片？ Hadoop0.20+ custom MultipleOutputFormat Solr安装异常：SolrException: Error loading class 'solr.VelocityResponseWriter' 怎样把tiff文件转换成jpg格式的啊？（在线！要源码，谢谢） maven项目使用SOLR时报 previously initiated loading for a different type with name "javax/servlet/http/HttpServletRequest" 错的解决方法关于订阅号和自定义菜单的关系问题微信公众平台开发（58）自定义菜单微信公众平台开发（58）自定义菜单 Custom SOLR Search Components - 2 Dev Tricks 微信公众平台自定义菜单接口API指南最新问答更多 h2元素推动其他h2和div。(h2 element pushing other h2 and div down. two divs, two headers, and they're wrapped within a parent div) 创建一个功能(Create a function) 我投了份简历，是电脑编程方面的学徒，面试时说要培训三个月，前面 PDO语句不显示获取的结果(PDOstatement not displaying fetched results) Qt冻结循环的原因？(Qt freezing cause of the loop?) TableView重复youtube-api结果(TableView Repeating youtube-api result) 如何使用自由职业者帐户登录我的php网站？(How can I login into my php website using freelancer account? [closed]) SQL Server 2014版本支持的最大数据库数(Maximum number of databases supported by SQL Server 2014 editions) 我如何获得DynamicJasper 3.1.2（或更高版本）的Maven仓库？(How do I get the maven repository for DynamicJasper 3.1.2 (or higher)?) 以编程方式创建UITableView(Creating a UITableView Programmatically) 如何打破按钮上的生命周期循环(How to break do-while loop on button) C＃使用EF访问MVC上的部分类的自定义属性(C# access custom attributes of a partial class on MVC with EF) 如何获得facebook app的publish_stream权限？(How to get publish_stream permissions for facebook app?) 如何防止调用冗余函数的postgres视图(how to prevent postgres views calling redundant functions) Sql Server在欧洲获取当前日期时间(Sql Server get current date time in Europe) 设置kotlin扩展名(Setting a kotlin extension) 如何并排放置两个元件？(How to position two elements side by side?) 如何在vim中启用python3？(How to enable python3 in vim?) 在MySQL和/或多列中使用多个表用于Rails应用程序(Using multiple tables in MySQL and/or multiple columns for a Rails application) 如何隐藏谷歌地图上的登录按钮？(How to hide the Sign in button from Google maps?) Mysql左连接旋转90°表(Mysql Left join rotate 90° table) dedecms如何安装？在哪儿学计算机最好? 学php哪个的书最好,本人菜鸟触摸时不要突出显示表格视图行(Do not highlight table view row when touched) 如何覆盖错误堆栈getter(How to override Error stack getter) 带有ImageMagick和许多图像的GIF动画(GIF animation with ImageMagick and many images) USSD INTERFACE - > java web应用程序通信(USSD INTERFACE -> java web app communication) 电脑高中毕业学习去哪里培训正则表达式验证SMTP响应(Regex to validate SMTP Responses) Copyright ©2023 peixunduo.com All Rights Reserved.粤ICP备14003112号本站部分内容来源于互联网，仅供学习和参考使用，请莫用于商业用途。如有侵犯你的版权，请联系我们(neng862121861#163.com)，本站将尽快处理。谢谢合作！

Chromecast自定义接收器JPG加载(Chromecast Custom Receiver JPG loading)

最满意答案

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