It is possible to enable a reception side to easily recognize that metadata is inserted into an audio stream. A metafile including meta information for acquiring an audio stream into which metadata is inserted through a reception device is transmitted. The identification information indicating that the metadata is inserted into the audio stream is inserted into the metafile. At the reception side, it is possible to easily recognize that the metadata is inserted into the audio stream based on the identification information inserted into the metafile.

A first playback device may include at least one battery, a network interface, at least one processor, a non-transitory computer-readable medium, and program instructions stored on the non-transitory computer-readable medium. The program instructions may be executable by the at least one processor such that the first playback device is configured to (i) receive an instruction to operate as a group coordinator of a synchrony group, (ii) determine a value of a battery state variable of the at least one battery, (iii) based on the value of the battery state variable of the at least one battery, select a second playback device from one or more other members of the synchrony group to operate as the group coordinator of the synchrony group, and (iv) cause the second playback device to operate as the group coordinator of the synchrony group.

Described are examples for streaming content at a device. One or more environmental parameters can be determined for the device. One or more parameters for receiving streaming content via one or more streaming servers over one or more network connections can be modified based on the one or more environmental parameters. The streaming content can be received based at least in part on the one or more streaming parameters.

A source device executing the application can transmit the streaming content to the playback device. The size of the buffer can be changed during the playback of streaming content. To perform the change seamlessly, embodiments can cause the application to provide the streaming content at an increased or decreased rate, depending on how the size of the playback buffer is to be changed. The new buffer size (i.e., smaller or larger amount) can provide improved playback of the streaming content, e.g., based on a latency-reliability tradeoff as determined using various factors (e.g., quality of connection between the devices). The changed rate for providing the streaming content can be achieved by slowing down or speeding up a clock signal that is provided to the application.

A Bluetooth audio streaming passthrough, and a method for transmitting an audio stream over a Bluetooth communication link and disclosed. The method is carried out by a source device. An audio codec configuration and a sampling rate of the audio stream are received, the audio stream coming from a streaming application running on the source device. A Bluetooth audio stream between the source device and a sink device is configured using the received audio codec configuration and sampling rate. The first audio stream is received from the streaming application. The received first audio stream is packetized into the Bluetooth audio stream. The Bluetooth audio stream is transmitted to the sink device over the Bluetooth communication link, including the packetized received audio stream.

Embodiments of the present disclosure disclose a video adaptation method, a related device, and a related storage medium. The method in the embodiments of the present disclosure includes: receiving indication information sent by a video receiving device, where the indication information is used to indicate an image super-resolution capability of the video receiving device; and if the indication information indicates that the image super-resolution capability of the video receiving device is enabled, obtaining a video having a target frame rate and a target resolution that correspond to the indication information and sending the video having the target frame rate and the target resolution to the video receiving device.

From a stream management service, indications of transmissions of data records of a first data stream via a persistent network connection associated with a subscription are provided to a stream processing application. In response to detecting that a transfer throttling condition associated with the subscription has been met, a delay is introduced before additional data records are transmitted via the same persistent network connection. After a subscription expiration period has elapsed, an indication of the expiration is provided to the application via the persistent connection.

Information associated with a controlled-environment facility resident communications and/or data device, such as device location within the controlled-environment facility, may be used to determine whether the resident device is approved for two-way video visitation or restricted to on-way video visitation. Video visitation may be initiated and voice and video captured and streamed by a non-resident communications and/or data device, as well as voice and/or video captured and streamed by the resident device, is received by a controlled-environment facility electronic communications management system. Voice and video captured at the non-resident device is transmitted to the resident device and, if the resident device is permitted two-way video visitation, voice and video captured by the resident device is transmitted to the non-resident device, if the resident device is restricted to one-way video visitation, only voice is transmitted to the non-resident device.

Systems and methods configured to detect and manage video transcoder latencies are described. A manifest is received and is used to request video segments included in a manifest playlist. A transcoder having an input and output is used to transcode video segments. A delta time for a first SCTE-35 marker between the transcoder input and the transcoder output is determined, where the delta time corresponds to a transcoder latency. A determination is made as to whether a corrective action needs to be taken with respect to the latency, and such corrective action is taken as needed. The corrective action may include a transcoder reset. The manifest may be a text file and may be in the form of an HLS or DASH manifest. Additionally, streaming latencies may be reduced by switching content distribution systems, increasing the number of edge systems distributing content to clients, and/or by increasing video cache memory.

Methods, systems, and media for selecting video formats for adaptive video streaming are provided. In some embodiments, the method comprises: receiving an indication of a video to be presented on a user device; identifying a group of quality metrics for each of a plurality of segments of the video, wherein each quality metric includes values for a particular segment and for a particular format of a group of available formats for the video; selecting a first format for a first segment of the video; causing the first segment of the video to be presented on the user device; identifying a quality of a network connection between the user device and a server that hosts the video; identifying a second format for a second segment of the video based on the quality of the network connection; determining whether a format of the video is to be changed from the first format to the second format based at least on the group of quality metrics for the second segment of the video; and, in response to determining that the format of the video is to be changed from the first format to the second format, causing the second segment having the second format to be presented by the user device.