WO2020155957A1 - 播放音视频的方法、装置、计算机设备及可读存储介质 - Google Patents

播放音视频的方法、装置、计算机设备及可读存储介质 Download PDF

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Publication number
WO2020155957A1
WO2020155957A1 PCT/CN2019/128439 CN2019128439W WO2020155957A1 WO 2020155957 A1 WO2020155957 A1 WO 2020155957A1 CN 2019128439 W CN2019128439 W CN 2019128439W WO 2020155957 A1 WO2020155957 A1 WO 2020155957A1
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WIPO (PCT)
Prior art keywords
video
audio
parameter information
segment
media content
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PCT/CN2019/128439
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English (en)
French (fr)
Inventor
王盛
郑翰超
吴志强
陈辉
丁建强
范文杰
谭兆歆
Original Assignee
上海哔哩哔哩科技有限公司
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Priority to EP19913045.1A priority Critical patent/EP3896988A4/en
Publication of WO2020155957A1 publication Critical patent/WO2020155957A1/zh
Priority to US17/304,774 priority patent/US11336711B2/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/80Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/85Assembly of content; Generation of multimedia applications
    • H04N21/854Content authoring
    • H04N21/8543Content authoring using a description language, e.g. Multimedia and Hypermedia information coding Expert Group [MHEG], eXtensible Markup Language [XML]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/80Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/83Generation or processing of protective or descriptive data associated with content; Content structuring
    • H04N21/845Structuring of content, e.g. decomposing content into time segments
    • H04N21/8456Structuring of content, e.g. decomposing content into time segments by decomposing the content in the time domain, e.g. in time segments
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/60Network streaming of media packets
    • H04L65/70Media network packetisation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/60Network streaming of media packets
    • H04L65/61Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio
    • H04L65/612Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio for unicast
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/60Network streaming of media packets
    • H04L65/75Media network packet handling
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/235Processing of additional data, e.g. scrambling of additional data or processing content descriptors
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/25Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
    • H04N21/262Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists
    • H04N21/26258Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists for generating a list of items to be played back in a given order, e.g. playlist, or scheduling item distribution according to such list
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/25Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
    • H04N21/266Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel
    • H04N21/2662Controlling the complexity of the video stream, e.g. by scaling the resolution or bitrate of the video stream based on the client capabilities
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/45Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
    • H04N21/462Content or additional data management, e.g. creating a master electronic program guide from data received from the Internet and a Head-end, controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
    • H04N21/4621Controlling the complexity of the content stream or additional data, e.g. lowering the resolution or bit-rate of the video stream for a mobile client with a small screen

Definitions

  • This application relates to the technical field of audio and video playback, and in particular to a method, device, computer equipment, and readable storage medium for playing audio and video.
  • DASH Dynamic Adaptive Streaming over HTTP, HTTP-based dynamic adaptive streaming
  • DASH is an adaptive bit rate streaming technology that makes high quality Streaming media can be delivered over the Internet through a traditional HTTP web server; DASH divides a streaming media content into multiple segments, each segment contains a certain length (for example, 10 seconds) of playable content, and each segment corresponds to There are multiple definitions (for example, 1080P, 720P, 480P, 360P) or multiple streams available for use, and the client can choose to download and play segments of the specified definition or stream according to the current network conditions.
  • the player does not need to be reloaded when the resolution is switched, which can ensure the smoothness of playback.
  • the server When using DASH technology to play audio and video, the server needs to send MPD (Media Presentation Description) files to the client; MPD files are files used to describe streaming media, including fragmentation information and available definition and Stream information, the client can selectively download the specified definition video and/or the specified stream audio according to the MPD file for playback.
  • MPD files Media Presentation Description
  • the MPD file specified by the current DASH protocol is a file in XML (Extensible Markup Language) format, which has more redundant information, larger file size, and poor scalability of the XML format.
  • the purpose of this application is to provide a method, device, computer equipment, and readable storage medium for playing audio and video, which solves the redundancy of content information, large file size, and difficulty in matching existing MPD files in traditional XML format.
  • the problem of property expansion is to provide a method, device, computer equipment, and readable storage medium for playing audio and video, which solves the redundancy of content information, large file size, and difficulty in matching existing MPD files in traditional XML format.
  • a method for playing audio and video is provided, which is applied to a server, and the method includes the following steps:
  • a media introduction description MPD file in JavaScript object notation JSON format is formed; wherein the MPD file in JSON format includes multiple streaming media content segments, and each streaming media content segment includes A video segment and/or an audio segment, each video segment and audio segment includes multiple arrays, and each array includes audio parameter information or video parameter information;
  • a method for playing audio and video is provided, which is applied to a client, and the method includes the following steps:
  • the MPD file in JSON format includes multiple streaming media content segments, each streaming media content segment includes a video segment and/or an audio segment, and each video segment And the audio segment includes multiple arrays, and each array includes audio parameter information or video parameter information;
  • a device for playing audio and video is provided, which is applied to a server, and the device specifically includes the following components:
  • the obtaining module is used to obtain the streaming media content to be encapsulated, and obtain audio parameter information and/or video parameter information by analyzing the streaming media content;
  • the construction module is used to form a media introduction description MPD file in JavaScript object notation JSON format according to the audio parameter information and/or video parameter information; wherein the MPD file in the JSON format includes multiple streaming media content segments, each The streaming media content segment includes a video segment and/or an audio segment, each video segment and audio segment includes multiple arrays, and each array includes audio parameter information or video parameter information;
  • the sending module is used to send the MPD file in JSON format to the client.
  • a device for playing audio and video which is applied to a client, and the device specifically includes the following components:
  • the receiving module is used to receive the MPD file in JSON format sent by the server; wherein the MPD file in JSON format includes multiple streaming media content segments, and each streaming media content segment includes a video segment and/or an audio segment , Each video segment and audio segment includes multiple arrays, and each array includes audio parameter information or video parameter information;
  • a parsing module for parsing the MPD file in JSON format to obtain audio parameter information and/or video parameter information
  • the playing module is used to play audio and/or video according to the audio parameter information and/or video parameter information.
  • a computer device specifically includes: a memory, a processor, and computer-readable instructions stored in the memory and executable on the processor. When the device executes the computer-readable instructions, the steps are implemented:
  • a media introduction description MPD file in JavaScript object notation JSON format is formed; wherein the MPD file in JSON format includes multiple streaming media content segments, and each streaming media content segment includes A video segment and/or an audio segment, each video segment and audio segment includes multiple arrays, and each array includes audio parameter information or video parameter information;
  • a computer device specifically includes: a memory, a processor, and computer-readable instructions stored in the memory and executable on the processor. When the device executes the computer-readable instructions, the steps are implemented:
  • the MPD file in JSON format includes multiple streaming media content segments, each streaming media content segment includes a video segment and/or an audio segment, and each video segment And the audio segment includes multiple arrays, and each array includes audio parameter information or video parameter information;
  • the present application also provides a computer-readable storage medium on which computer-readable instructions are stored, and when the computer-readable instructions are executed by a processor, the following steps are realized:
  • a media introduction description MPD file in JavaScript object notation JSON format is formed; wherein the MPD file in JSON format includes multiple streaming media content segments, and each streaming media content segment includes A video segment and/or an audio segment, each video segment and audio segment includes multiple arrays, and each array includes audio parameter information or video parameter information;
  • this application also provides a computer-readable storage medium on which computer-readable instructions are stored, and when the computer-readable instructions are executed by a processor, the following steps are implemented:
  • the MPD file in JSON format includes multiple streaming media content segments, each streaming media content segment includes a video segment and/or an audio segment, and each video segment And the audio segment includes multiple arrays, and each array includes audio parameter information or video parameter information;
  • the method, device, computer equipment, and readable storage medium for playing audio and video use MPD files in JSON format to replace traditional MPD files in XML format; by using JSON format, the content of MPD files is more concise and Clear, thereby reducing the volume of the MPD file; in addition, when using the JSON format to encapsulate the MPD file, you can customize different attributes describing the audio and video data and describing the video data according to the needs of the client, and add the customized attributes to the JSON format MPD file.
  • FIG. 1 is a schematic flowchart of a method for playing audio and video according to Embodiment 1 of the present application;
  • FIG. 2 is a schematic diagram of the content structure of the MPD file in XML format in the first embodiment of the present application
  • FIG. 3 is a schematic flowchart of a method for playing audio and video provided in Embodiment 2 of the present application;
  • FIG. 5 is a schematic diagram of the composition structure of the device for playing audio and video provided by the fourth embodiment of the present application.
  • Fig. 6 is a schematic diagram of the hardware architecture of the computer equipment provided in the fifth and sixth embodiments of the present application.
  • Fig. 1 is a schematic diagram of an optional process of the method for playing audio and video in this application. The method is applied to a server. As shown in Fig. 1, the method specifically includes the following steps:
  • Step S101 Obtain streaming media content to be packaged, and obtain audio parameter information and/or video parameter information by parsing the streaming media content.
  • the audio parameter information includes: code stream information, audio address information under each code stream, and audio attribute information under each code stream;
  • the audio address information includes: audio main address information and audio backup address information
  • Audio attribute information includes: audio code stream identification number ID, recommended audio transmission bandwidth Bandwidth, media type mineType, encoding method codecs, whether the audio is initialized Initialization, current audio segment index range indexRange, audio encoding identification number cidecid.
  • the video parameter information includes: definition information, video address information in each definition, and video attribute information in each definition;
  • the video address information includes: video main address information and video backup address information
  • Video attribute information includes: video stream identification number ID, recommended video transmission bandwidth Bandwidth, media type mineType, encoding method codecs, width width, height height, frame rate frameRate, video SAR ratio value sar, video SAP start value, startWithSAP, Whether the video is initialized Initialization, the current video segment index range indexRange, and the video encoding identification number cidecid.
  • Step S102 Form an MPD file in JSON format according to the audio parameter information and/or video parameter information.
  • the MPD file is the description file of the video, which can be used to describe the composition of the entire MPEG DASH (also known as DASH) code stream, which is equivalent to the M3U8 (M3U8 is a format of video) file of the HLS (HTTP Live Streaming) protocol
  • MPD file is an XML (Extensible Markup Language, Extensible Markup Language) Document (Document is a computer terminology, every HTML (Hyper Text Markup Language) document loaded into the browser will become a Document object)
  • the content of the MPD file can be used to construct a URL (Uniform Resource Locator) for HTTP GET request (HTTP GET request is a method of HTTP request) download.
  • URL Uniform Resource Locator
  • FIG. 2 it is a schematic diagram of the content structure of the MPD file in XML format.
  • An MPD file in XML format includes multiple fragment Period files; and each Period file has a corresponding application description AdaptationSet file;
  • the AdaptationSet file contains the resolution description file of different definitions/code streams.
  • Each Representation file corresponds to a definition/code rate, and each Representation file contains the attribute information of the corresponding definition/code rate; in a Representation
  • the file includes multiple segments, and each segment corresponds to a certain length of video content or audio content.
  • a streaming media content is put into a Period section; the video data and audio data in the streaming media content are stored in different AdaptationSet sections; different definition videos use different Representation sections It means that the audio of different code streams is also represented by different Representation segments; a Representation segment includes video attribute information or audio attribute information.
  • the code of the MPD file in XML format is as follows:
  • the MPD file is encapsulated in the JSON format; wherein the MPD file in the JSON format includes multiple streaming media content segments, and each streaming media content segment includes a video segment and/or an audio segment, each The video segment and the audio segment include multiple arrays, and each array includes audio parameter information or video parameter information.
  • the streaming media content segment corresponds to the Period segment in the XML format MPD file
  • the video segment corresponds to the AdaptationSet segment of the video in the XML format MPD file
  • the audio segment corresponds to the audio in the XML format MPD file.
  • the AdaptationSet section, the array corresponds to the Representation section in the MPD file in XML format.
  • dash ⁇ segments to represent streaming media content segments
  • video[] segments to represent video segments
  • audio[] segments to represent audio segments
  • use ⁇ in video[] and audio[] segments ⁇ Means an array.
  • the Period segment in the MPD file in XML format is converted into a dash segment
  • the AdaptationSet segment of the video in the XML format MPD file is converted into a video segment
  • the AdaptationSet segment in the audio in the XML format MPD file is converted Converted to audio segment
  • the Representation segment of the video in the MPD file in XML format is represented by an array ⁇ of JSON
  • the video parameter information and audio parameter information are added to the array ⁇ .
  • code of an MPD file in JSON format is as follows:
  • step S102 specifically includes:
  • Step A1 Add the video parameter information of a resolution to an array, and/or add the audio parameter information of a code stream to an array;
  • Step A2 Add the array of each definition to a video segment, and/or add the array of each code stream to an audio segment;
  • Step A3 Add the video segment and/or audio segment to a streaming media content segment.
  • an MPD file in JSON format When constructing an MPD file in JSON format, first construct an array based on video parameter information and audio parameter information, then construct a video segment based on the video array, and construct an audio segment based on the audio array, and finally construct a streaming media content segment based on the video and audio segments .
  • Step S103 Send the MPD file in JSON format to the client.
  • FIG. 3 is an optional flowchart of the method for playing audio and video according to this application. The method is applied to the client. As shown in FIG. 3, the method specifically includes the following steps:
  • Step S301 Receive the MPD file in JSON format sent by the server.
  • the MPD file in JSON format includes multiple streaming media content segments, each streaming media content segment includes a video segment and/or an audio segment, each video segment and audio segment includes multiple arrays, and each array includes audio Parameter information or video parameter information.
  • Step S302 Parse the MPD file in the JSON format to obtain audio parameter information and/or video parameter information.
  • step S302 includes:
  • Step B1 Parse out the streaming media content segment contained in the MPD file in the JSON format
  • Step B2 Parse out the video segment and/or audio segment included in the streaming media content segment
  • Step B3 parse out the array of each definition included in the video segment, and/or parse out the array of each code stream included in the audio segment;
  • Step B4 parse out the video parameter information corresponding to the resolution and/or the audio parameter information of the corresponding code stream contained in the array.
  • the client since the JSON format is used to encapsulate the MPD file, the client also needs to parse the MPD file in the JSON format to obtain the tree structure data and each attribute parameter as shown in FIG. 2.
  • step S302 includes:
  • one dash ⁇ segment corresponds to a playable streaming media content
  • each ⁇ in the video[] segment corresponds to a different definition
  • each ⁇ in the audio[] segment corresponds to a different code flow
  • the audio parameter information includes: code stream information, audio address information under each code stream, and audio attribute information under each code stream;
  • the audio address information includes: audio main address information and audio backup address information
  • Audio attribute information includes: audio code stream identification number ID, recommended audio transmission bandwidth Bandwidth, media type mineType, encoding method codecs, whether the audio is initialized Initialization, current audio segment index range indexRange, and audio encoding identification number cidecid.
  • the video parameter information includes: definition information, video address information in each definition, and video attribute information in each definition;
  • the video address information includes: video main address information and video backup address information
  • Video attribute information includes: video stream identification number ID, recommended video transmission bandwidth Bandwidth, media type mineType, encoding method codecs, width width, height height, frame rate frameRate, video SAR ratio value sar, video SAP start value, startWithSAP, Whether the video is initialized Initialization, the current video segment index range indexRange, and the video encoding identification number cidecid.
  • Step S303 Play audio and/or video according to the audio parameter information and/or video parameter information.
  • the audio parameter information and video parameter information in the MPD file in XML format are first parsed, and then the audio and video are played according to the audio parameter information and video parameter information. Therefore, in step S303, the existing audio and video playback mode can be used, so it will not be described in detail here.
  • FIG. 4 shows an optional structural block diagram of the device for playing audio and video.
  • the audio and video device is divided into one or more program modules, and the one or more program modules are stored in a storage medium and executed by one or more processors to complete this application.
  • the program module referred to in this application refers to a series of computer-readable instruction segments that can complete specific functions. It is more suitable than the program itself to describe the execution process of the device for playing audio and video in the storage medium. The following description will specifically introduce each of this embodiment. The function of the program module.
  • the device for playing audio and video applied to the server specifically includes the following components:
  • the obtaining module 401 is configured to obtain the streaming media content to be packaged, and obtain audio parameter information and/or video parameter information by analyzing the streaming media content;
  • the audio parameter information includes: code stream information, audio address information under each code stream, and audio attribute information under each code stream.
  • the video parameter information includes: definition information, video address information in each definition, and video attribute information in each definition.
  • the construction module 402 is used to form a media introduction description MPD file in JavaScript object notation JSON format according to the audio parameter information and/or video parameter information; wherein the MPD file in the JSON format includes multiple streaming media content segments, each Each streaming media content segment includes one video segment and/or one audio segment, and each video segment and audio segment includes multiple arrays, and each array includes audio parameter information or video parameter information.
  • the building module 402 is used to:
  • the sending module 403 is used to send the MPD file in JSON format to the client.
  • FIG. 5 shows an optional structural block diagram of the device for playing audio and video.
  • the audio and video device is divided into one or more program modules, and the one or more program modules are stored in a storage medium and executed by one or more processors to complete this application.
  • the program module referred to in this application refers to a series of computer-readable instruction segments that can complete specific functions. It is more suitable than the program itself to describe the execution process of the device for playing audio and video in the storage medium. The following description will specifically introduce each of this embodiment. The function of the program module.
  • the device for playing audio and video applied to the client specifically includes the following components:
  • the receiving module 501 is configured to receive an MPD file in JSON format sent by a server; wherein the MPD file in JSON format includes multiple streaming media content segments, and each streaming media content segment includes a video segment and/or an audio segment. Segment, each video segment and audio segment includes multiple arrays, and each array includes audio parameter information or video parameter information.
  • the audio parameter information includes: code stream information, audio address information under each code stream, and audio attribute information under each code stream;
  • the video parameter information includes: definition information, video address information in each definition, and video attribute information in each definition.
  • the parsing module 502 is used for parsing the MPD file in the JSON format to obtain audio parameter information and/or video parameter information.
  • parsing module 502 is used to:
  • the video parameter information of the corresponding resolution and/or the audio parameter information of the corresponding code stream contained in the array is parsed.
  • the playing module 503 is configured to play audio and/or video according to the audio parameter information and/or video parameter information.
  • This embodiment also provides a computer device, such as a smart phone, a tablet computer, a notebook computer, a desktop computer, a rack server, a blade server, a tower server, or a cabinet server (including independent servers, or A server cluster composed of multiple servers), etc.
  • the computer device 60 of this embodiment at least includes but is not limited to: a memory 601 and a processor 602 that can be communicatively connected to each other through a system bus. It should be pointed out that Fig. 6 only shows the computer device 60 with components 601-602, but it should be understood that it is not required to implement all the illustrated components, and more or fewer components may be implemented instead.
  • the memory 601 (readable storage medium) includes flash memory, hard disk, multimedia card, card-type memory (for example, SD or DX memory, etc.), random access memory (RAM), static random access memory (SRAM), Read only memory (ROM), electrically erasable programmable read only memory (EEPROM), programmable read only memory (PROM), magnetic memory, magnetic disk, optical disk, etc.
  • the memory 601 may be an internal storage unit of the computer device 60, such as a hard disk or memory of the computer device 60.
  • the memory 601 may also be an external storage device of the computer device 60, such as a plug-in hard disk, a smart media card (SMC), and a secure digital (Secure Digital, SMC) equipped on the computer device 60. SD) card, flash card (Flash Card), etc.
  • the memory 601 may also include both the internal storage unit of the computer device 60 and its external storage device.
  • the memory 601 is generally used to store the operating system and various application software installed in the computer device 60, such as the program code of the device for playing audio and video in the third embodiment.
  • the memory 601 can also be used to temporarily store various types of data that have been output or will be output.
  • the processor 602 may be a central processing unit (Central Processing Unit, CPU), controller, microcontroller, microprocessor, or other data processing chip in some embodiments.
  • the processor 602 is generally used to control the overall operation of the computer device 60.
  • the processor 602 is configured to execute the program of the method for playing audio and video stored in the processor 602, and the following steps are implemented when the program of the method for playing audio and video is executed:
  • a media introduction description MPD file in JavaScript object notation JSON format is formed; wherein the MPD file in JSON format includes multiple streaming media content segments, and each streaming media content segment includes A video segment and/or an audio segment, each video segment and audio segment includes multiple arrays, and each array includes audio parameter information or video parameter information;
  • This embodiment also provides a computer device, such as a smart phone, a tablet computer, a notebook computer, a desktop computer, a rack server, a blade server, a tower server, or a cabinet server (including independent servers, or A server cluster composed of multiple servers), etc.
  • the computer device 60 of this embodiment at least includes but is not limited to: a memory 601 and a processor 602 that can be communicatively connected to each other through a system bus.
  • FIG. 6 only shows the computer device 60 with components 601-602, but it should be understood that it is not required to implement all the components shown, and more or fewer components may be implemented instead.
  • the memory 601 (readable storage medium) includes flash memory, hard disk, multimedia card, card-type memory (for example, SD or DX memory, etc.), random access memory (RAM), static random access memory (SRAM), Read only memory (ROM), electrically erasable programmable read only memory (EEPROM), programmable read only memory (PROM), magnetic memory, magnetic disk, optical disk, etc.
  • the memory 601 may be an internal storage unit of the computer device 60, such as a hard disk or memory of the computer device 60.
  • the memory 601 may also be an external storage device of the computer device 60, such as a plug-in hard disk, a smart media card (SMC), and a secure digital (Secure Digital, SMC) equipped on the computer device 60. SD) card, flash card (Flash Card), etc.
  • the memory 601 may also include both the internal storage unit of the computer device 60 and its external storage device.
  • the memory 601 is generally used to store the operating system and various application software installed in the computer device 60, such as the program code of the device for playing audio and video in the fourth embodiment.
  • the memory 601 can also be used to temporarily store various types of data that have been output or will be output.
  • the processor 602 may be a central processing unit (Central Processing Unit, CPU), controller, microcontroller, microprocessor, or other data processing chip in some embodiments.
  • the processor 602 is generally used to control the overall operation of the computer device 60.
  • the processor 602 is configured to execute the program of the method for playing audio and video stored in the processor 602, and the following steps are implemented when the program of the method for playing audio and video is executed:
  • the MPD file in JSON format includes multiple streaming media content segments, each streaming media content segment includes a video segment and/or an audio segment, and each video segment And the audio segment includes multiple arrays, and each array includes audio parameter information or video parameter information;
  • This embodiment also provides a computer-readable storage medium, such as flash memory, hard disk, multimedia card, card-type memory (for example, SD or DX memory, etc.), random access memory (RAM), static random access memory (SRAM), only Readable memory (ROM), electrically erasable programmable read-only memory (EEPROM), programmable read-only memory (PROM), magnetic memory, magnetic disk, optical disk, server, App application mall, etc., on which computer readable Instructions, when the computer-readable instructions are executed by the processor, the following method steps are implemented:
  • a media introduction description MPD file in JavaScript object notation JSON format is formed; wherein the MPD file in JSON format includes multiple streaming media content segments, and each streaming media content segment includes A video segment and/or an audio segment, each video segment and audio segment includes multiple arrays, and each array includes audio parameter information or video parameter information;
  • This embodiment also provides a computer-readable storage medium, such as flash memory, hard disk, multimedia card, card-type memory (for example, SD or DX memory, etc.), random access memory (RAM), static random access memory (SRAM), only Readable memory (ROM), electrically erasable programmable read-only memory (EEPROM), programmable read-only memory (PROM), magnetic memory, magnetic disk, optical disk, server, App application mall, etc., on which computer readable Instructions, when the computer-readable instructions are executed by the processor, the following method steps are implemented:
  • the MPD file in JSON format includes multiple streaming media content segments, each streaming media content segment includes a video segment and/or an audio segment, and each video segment And the audio segment includes multiple arrays, and each array includes audio parameter information or video parameter information;

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Abstract

本申请公开了一种播放音视频的方法、装置、计算机设备及可读存储介质,该方法包括:获取待封装的流媒体内容,通过解析所述流媒体内容,得到音频参数信息和/或视频参数信息;根据所述音频参数信息和/或视频参数信息,形成JavaScript对象简谱JSON格式的媒体介绍说明MPD文件;其中,所述JSON格式的MPD文件包括多个流媒体内容段,每个流媒体内容段包括一个视频段和/或一个音频段,每个视频段和音频段包括多个数组,每个数组包括音频参数信息或视频参数信息;将所述JSON格式的MPD文件发送至客户端。本申请解决了在传统的XML格式的MPD文件中存在的内容信息冗余、文件体积较大、且不易对属性进行拓展的问题。

Description

播放音视频的方法、装置、计算机设备及可读存储介质
本申请要求于2019年01月30日提交中国专利局、申请号为201910092692.X、发明名称为“播放音视频的方法、装置、计算机设备及可读存储介质”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
技术领域
本申请涉及音视频播放技术领域,具体涉及一种播放音视频的方法、装置、计算机设备及可读存储介质。
背景技术
为了让音视频播放的更加流畅,越来越多的视频网站开始采用DASH(Dynamic Adaptive Streaming over HTTP,基于HTTP的动态自适应流)技术,DASH是一种自适应比特率流技术,使得高质量流媒体可以通过传统的HTTP网络服务器以互联网传递;DASH将一个流媒体内容分解为多个分片,每个分片包含一定长度(例如,10秒)的可播放内容,且每个分片对应有多个清晰度(例如,1080P、720P、480P、360P)或多个码流可供使用,客户端可以根据当前网络条件选择下载和播放指定清晰度或码流的分片。与传统的音视频播放技术相比,在进行清晰度的切换时不需要重新加载播放器,可以保障播放的流畅性。
在使用DASH技术播放音视频时,服务器需要向客户端发送MPD(Media Presentation Description,媒体介绍说明)文件;MPD文件是用于描述流媒体的文件,包括分片信息以及可供使用的清晰度及码流信息,客户端可以根据MPD文件选择性的下载指定清晰度的视频和/或指定码流的音频,以进行播放。但是,发明人发现,目前DASH协议规定的MPD文件为XML(Extensible Markup Language,可扩展标记语言)格式的文件,冗余信息较多,文件体积较大,且XML格式的可拓展性不好。
发明内容
本申请的目的在于提供一种播放音视频的方法、装置、计算机设备及可读存储介质,解决了在传统的XML格式的MPD文件中存在的内容信息冗余、文件体积较大、且不易对属性进行拓展的问题。
本申请是通过下述技术方案来解决上述技术问题:
根据本申请的一个方面,提供了一种播放音视频的方法,应用于服务器,该方法包括如下步骤:
获取待封装的流媒体内容,通过解析所述流媒体内容,得到音频参数信息和/或视频参数信息;
根据所述音频参数信息和/或视频参数信息,形成JavaScript对象简谱JSON格式的媒体介绍说明MPD文件;其中,所述JSON格式的MPD文件包括多个流媒体内容段,每个流媒体内容段包括一个视频段和/或一个音频段,每个视频段和音频段包括多个数组,每个数组包括音频参数信息或视频参数信息;
将所述JSON格式的MPD文件发送至客户端。
根据本申请的另一个方面,提供了一种播放音视频的方法,应用于客户端,该方法包括如下步骤:
接收由服务器发送来的JSON格式的MPD文件;其中,所述JSON格式的MPD文件包括多个流媒体内容段,每个流媒体内容段包括一个视频段和/或一个音频段,每个视频段和音频段包括多个数组,每个数组包括音频参数信息或视频参数信息;
解析所述JSON格式的MPD文件,以得到音频参数信息和/或视频参数信息;
根据所述音频参数信息和/或视频参数信息进行音频和/或视频的播放。
根据本申请的另一个方面,提供了一种播放音视频的装置,应用于服务器,该装置具体包括以下组成部分:
获取模块,用于获取待封装的流媒体内容,通过解析所述流媒体内容,得到音频参数信息和/或视频参数信息;
构建模块,用于根据所述音频参数信息和/或视频参数信息,形成JavaScript对象简谱JSON格式的媒体介绍说明MPD文件;其中,所述JSON格式的MPD文件包括多个流媒体内容段,每个流媒体内容段包括一个视频段和/或一个音频段,每个视频段和音频段包括多个数组,每个数组包括音频参数信息或视频参数信息;
发送模块,用于将所述JSON格式的MPD文件发送至客户端。
根据本申请的另一个方面,提供了一种播放音视频的装置,应用于客户端,该装置具体包括以下组成部分:
接收模块,用于接收由服务器发送来的JSON格式的MPD文件;其中,所述JSON格式的MPD文件包括多个流媒体内容段,每个流媒体内容段包括一个视频段和/或一个音频段,每个视频段和音频段包括多个数组,每个数组包括音频参数信息或视频参数信息;
解析模块,用于解析所述JSON格式的MPD文件,以得到音频参数信息和/或视频参数信息;
播放模块,用于根据所述音频参数信息和/或视频参数信息进行音频和/或视频的播放。
根据本申请的另一个方面,提供了一种计算机设备,该计算机设备具体包括:存储器、处理器以及存储在所述存储器上并可在所述处理器上运行的计算机可读指令,所述处理器执行所述计算机可读指令时实现步骤:
获取待封装的流媒体内容,通过解析所述流媒体内容,得到音频参数信息和/或视频参数信息;
根据所述音频参数信息和/或视频参数信息,形成JavaScript对象简谱JSON格式的媒体介绍说明MPD文件;其中,所述JSON格式的MPD文件包括多个流媒体内容段,每个流媒体内容段包括一个视频段和/或一个音频段,每个视频段和音频段包括多个数组,每个数组包括音频参数信息或视频参数信息;
将所述JSON格式的MPD文件发送至客户端。
根据本申请的另一个方面,提供了一种计算机设备,该计算机设备具体包括:存储器、处理器以及存储在所述存储器上并可在所述处理器上运行的计算机可读指令,所述处理器执行所述计算机可读指令时实现步骤:
接收由服务器发送来的JSON格式的MPD文件;其中,所述JSON格式的MPD文件包括多个流媒体内容段,每个流媒体内容段包括一个视频段和/或一个音频段,每个视频段和音频段包括多个数组,每个数组包括音频参数信息或视频参数信息;
解析所述JSON格式的MPD文件,以得到音频参数信息和/或视频参数信息;
根据所述音频参数信息和/或视频参数信息进行音频和/或视频的播放。
本申请还提供一种计算机可读存储介质,其上存储有计算机可读指令,所述计算机可读指令被处理器执行时实现步骤:
获取待封装的流媒体内容,通过解析所述流媒体内容,得到音频参数信息和/或视频参数信息;
根据所述音频参数信息和/或视频参数信息,形成JavaScript对象简谱JSON格式的媒体介绍说明MPD文件;其中,所述JSON格式的MPD文件包括多个流媒体内容段,每个流媒体内容段包括一个视频段和/或一个音频段,每个视频段和音频段包括多个数组,每个数组包括音频参数信息或视频参数信息;
将所述JSON格式的MPD文件发送至客户端。
为了实现上述目的,本申请还提供一种计算机可读存储介质,其上存储有计算机可读指令,所述计算机可读指令被处理器执行时实现步骤:
接收由服务器发送来的JSON格式的MPD文件;其中,所述JSON格式的MPD文件包括多个流媒体内容段,每个流媒体内容段包括一个视频段和/或一个音频段,每个视频段和音频段包括多个数组,每个数组包括音频参数信息或视频参数信息;
解析所述JSON格式的MPD文件,以得到音频参数信息和/或视频参数信息;
根据所述音频参数信息和/或视频参数信息进行音频和/或视频的播放。
本申请提供的播放音视频的方法、装置、计算机设备及可读存储介质,使用JSON格式的MPD文件,以替换传统的XML格式的MPD文件;通过使用JSON格式,使得MPD文件的内容更加简洁、清晰,从而减轻MPD文件的体积;此外,在使用JSON格式封装MPD文件时,可以根据客户端的需求,定制不同的描述音视频数据和描述视频数据的属性,并将定制的属性添加到JSON格式的MPD文件中。
附图说明
通过阅读下文优选实施方式的详细描述,各种其他的优点和益处对于本领域普通技术人员将变得清楚明了。附图仅用于示出优选实施方式的目的,而并不认为是对本申请的限制。而且在整个附图中,用相同的参考符号表示相同的部件。在附图中:
图1是本申请实施例一提供的播放音视频的方法的流程示意图;
图2是本申请实施例一中的XML格式的MPD文件的内容结构示意图;
图3是本申请实施例二提供的播放音视频的方法的流程示意图;
图4是本申请实施例三提供的播放音视频的装置的组成结构示意图;
图5是本申请实施例四提供的播放音视频的装置的组成结构示意图;
图6是本申请实施例五、六提供的计算机设备的硬件架构示意图。
具体实施方式
为了使本申请的目的、技术方案及优点更加清楚明白,以下结合附图及实施例,对本申请进行进一步详细说明。应当理解,此处所描述的具体实施例仅用以解释本申请,并不用于限定本申请。基于本申请中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本申请保护的范围。
实施例一
下面结合附图对本申请提供的播放音视频的方法进行说明。
图1为本申请播放音视频的方法的一种可选的流程示意图,该方法应用于服务器,如图1所示,该方法具体包括以下步骤:
步骤S101:获取待封装的流媒体内容,通过解析所述流媒体内容,得到音频参数信息和/或视频参数信息。
具体的,所述音频参数信息包括:码流信息、各个码流下的音频地址信息、以及各个码流下的音频属性信息;
其中,音频地址信息包括:音频主地址信息和音频备用地址信息;
音频属性信息包括:音频码流标识号ID、建议音频传输使用带宽Bandwidth、媒体类型mineType、编码方式codecs、音频是否初始化Initialization、当前音频段索引范围indexRange、音频编码标识号cidecid。
所述视频参数信息包括:清晰度信息、各个清晰度下的视频地址信息、以及各个清晰度下的视频属性信息;
其中,视频地址信息包括:视频主地址信息和视频备用地址信息;
视频属性信息包括:视频码流标识号ID、建议视频传输使用带宽Bandwidth、媒体类型mineType、编码方式codecs、宽度width、高度height、帧速frameRate、视频SAR比例 值sar、视频SAP开始值、startWithSAP、视频是否初始化Initialization、当前视频段索引范围indexRange、视频编码标识号cidecid。
步骤S102:根据所述音频参数信息和/或视频参数信息,形成JSON格式的MPD文件。
具体的,MPD文件是视频的描述文件,可以用于描述整个MPEG DASH(又称为DASH)码流的构成,相当于HLS(HTTP Live Streaming)协议的M3U8(M3U8是视频的一种格式)文件,MPD文件是一个XML(Extensible Markup Language,可扩展标记语言)Document(Document是计算机专业术语,每个载入浏览器的HTML(Hyper Text Markup Language,超级文本标记语言)文档都会成为Document对象),通过MPD文件的内容可以构造出用于HTTP GET请求(HTTP GET请求是HTTP请求的一种方式)下载的URL(Uniform Resource Locator,统一资源定位符)。
如图2所示,为XML格式的MPD文件的内容结构示意图,在一个XML格式的MPD文件中包括多个片段Period文件;而在每个Period文件中都有对应的应用描述AdaptationSet文件;在一个AdaptationSet文件中包含不同清晰度/码流的分辨率描述Representation文件,每个Representation文件对应一个清晰度/码率,且在每个Representation文件中包含对应清晰度/码率的属性信息;在一个Representation文件中包括多个分片Segment,每个Segment对应一定时间长度的视频内容或音频内容。
在XML格式的MPD文件中,一个流媒体内容放入一个Period段中;并将流媒体内容中的视频数据和音频数据分别存入不同的AdaptationSet段中;不同清晰度的视频用不同的Representation段表示,不同码流的音频也用不同的Representation段表示;在一个Representation段中包括视频属性信息或音频属性信息。
例如,XML格式的MPD文件的代码如下:
Figure PCTCN2019128439-appb-000001
Figure PCTCN2019128439-appb-000002
Figure PCTCN2019128439-appb-000003
由此可见,XML格式的MPD文件内容较多且不够清晰,导致MPD文件体积过大。
而在本实施例中,使用JSON格式封装MPD文件;其中,所述JSON格式的MPD文件包括多个流媒体内容段,每个流媒体内容段包括一个视频段和/或一个音频段,每个视频段和音频段包括多个数组,每个数组包括音频参数信息或视频参数信息。
在本实施例中,流媒体内容段对应于XML格式的MPD文件中的Period段,视频段对应于XML格式的MPD文件中的视频的AdaptationSet段,音频段对应于XML格式的MPD文件中的音频的AdaptationSet段,数组对应于XML格式的MPD文件中的Representation段。
优选的,在实际应用中,使用dash{}段表示流媒体内容段,使用video[]段表示视频段,使用audio[]段表示音频段,在video[]段和audio[]段中使用{}表示数组。
在本实施例中,将XML格式的MPD文件中的Period段转换为dash段,将XML格式的MPD文件中的视频的AdaptationSet段转换为video段,将XML格式的MPD文件中的音频的AdaptationSet段转换为audio段,将XML格式的MPD文件中的视频的Representation段使用JSON的数组{}表示,并将视频参数信息和音频参数信息添加到数组{}中。
例如,JSON格式的MPD文件的代码如下:
Figure PCTCN2019128439-appb-000004
Figure PCTCN2019128439-appb-000005
Figure PCTCN2019128439-appb-000006
Figure PCTCN2019128439-appb-000007
由此可见,通过使用JSON格式,使得MPD文件的内容更加简洁、清晰,从而减轻MPD文件的体积。
进一步的,步骤S102,具体包括:
步骤A1:将一个清晰度下的视频参数信息添加到一个数组中,和/或将一个码流下的音频参数信息添加到一个数组中;
步骤A2:将各个清晰度的数组添加到一个视频段中,和/或将各个码流的数组添加到一个音频段中;
步骤A3:将所述视频段和/或音频段添加到一个流媒体内容段中。
当构建JSON格式的MPD文件时,先根据视频参数信息和音频参数信息构建数组,再根据视频的数组构建视频段以及根据音频的数组构建音频段,最后根据视频段和音频段构建出流媒体内容段。
步骤S103:将所述JSON格式的MPD文件发送至客户端。
实施例二
下面结合附图对本申请提供的播放音视频的方法进行说明。
图3为本申请播放音视频的方法的一种可选的流程示意图,该方法应用于客户端,如图3所示,该方法具体包括以下步骤:
步骤S301:接收由服务器发送来的JSON格式的MPD文件。
其中,所述JSON格式的MPD文件包括多个流媒体内容段,每个流媒体内容段包括一个视频段和/或一个音频段,每个视频段和音频段包括多个数组,每个数组包括音频参数信息或视频参数信息。
步骤S302:解析所述JSON格式的MPD文件,以得到音频参数信息和/或视频参数信息。
具体的,步骤S302,包括:
步骤B1:解析出包含在所述JSON格式的MPD文件中的流媒体内容段;
步骤B2:解析出包含在所述流媒体内容段中的视频段和/或音频段;
步骤B3:解析出包含在所述视频段中的各个清晰度的数组,和/或解析出包含在所述音频段中的各个码流的数组;
步骤B4:解析出包含在所述数组中的对应清晰度的视频参数信息和/或对应码流的音频参数信息。
在本实施例中,由于使用了JSON格式来封装MPD文件,所以客户端也需要对JSON格式的MPD文件进行解析以得到如图2所示的树形结构数据和各个属性参数。
根据实施例一中的介绍可知,在实际应用中,使用dash{}段表示流媒体内容段,使用video[]段表示视频段,使用audio[]段表示音频段,在video[]段和audio[]段中使用{}表示数组;所以步骤S302,具体包括:
解析出包含在JSON格式的MPD文件中的dash{}段;一个dash{}段对应一个可播放的流媒体内容;
解析出包含在dash{}段中的video[]段和/或audio[]段;其中,video[]段对应流媒体内容的视频内容,audio[]段对应流媒体内容的音频内容;
解析出包含在video[]段和/或audio[]段中的{};其中,video[]段中的各个{}对应不同的清晰度,audio[]段中的各个{}对应不同的码流;
解析出包含在{}中的视频参数信息或音频参数信息。
进一步的,所述音频参数信息包括:码流信息、各个码流下的音频地址信息、以及各个码流下的音频属性信息;
其中,音频地址信息包括:音频主地址信息和音频备用地址信息;
音频属性信息包括:音频码流标识号ID、建议音频传输使用带宽Bandwidth、媒体类型mineType、编码方式codecs、音频是否初始化Initialization、当前音频段索引范围indexRange、音频编码标识号cidecid。
所述视频参数信息包括:清晰度信息、各个清晰度下的视频地址信息、以及各个清晰度下的视频属性信息;
其中,视频地址信息包括:视频主地址信息和视频备用地址信息;
视频属性信息包括:视频码流标识号ID、建议视频传输使用带宽Bandwidth、媒体类型mineType、编码方式codecs、宽度width、高度height、帧速frameRate、视频SAR比例值sar、视频SAP开始值、startWithSAP、视频是否初始化Initialization、当前视频段索引范围indexRange、视频编码标识号cidecid。
步骤S303:根据所述音频参数信息和/或视频参数信息进行音频和/或视频的播放。
由于现有技术中使用XML格式的MPD文件进行音视频的播放也是先解析出XML格式的MPD文件中的音频参数信息和视频参数信息,再根据音频参数信息和视频参数信息进行音视频的播放,所以步骤S303可以采用现有的音视频播放方式,故在此处不再详述。
实施例三
基于上述实施例一中提供的播放音视频的方法,本实施例中提供一种播放音视频的装置,具体地,图4示出了该播放音视频的装置的可选的结构框图,该播放音视频的装置被分割成一个或多个程序模块,一个或者多个程序模块被存储于存储介质中,并由一个或多个处理器所执行,以完成本申请。本申请所称的程序模块是指能够完成特定功能的一系列计算机可读指令段,比程序本身更适合描述播放音视频的装置在存储介质中的执行过程,以下描述将具体介绍本实施例各程序模块的功能。
如图4所示,应用于服务器的播放音视频的装置具体包括以下组成部分:
获取模块401,用于获取待封装的流媒体内容,通过解析所述流媒体内容,得到音频参数信息和/或视频参数信息;
具体的,所述音频参数信息包括:码流信息、各个码流下的音频地址信息、以及各个码流下的音频属性信息。
所述视频参数信息包括:清晰度信息、各个清晰度下的视频地址信息、以及各个清晰度下的视频属性信息。
构建模块402,用于根据所述音频参数信息和/或视频参数信息,形成JavaScript对象简谱JSON格式的媒体介绍说明MPD文件;其中,所述JSON格式的MPD文件包括多个流媒体内容段,每个流媒体内容段包括一个视频段和/或一个音频段,每个视频段和音频段包括多个数组,每个数组包括音频参数信息或视频参数信息。
具体的,构建模块402,用于:
将一个清晰度下的视频参数信息添加到一个数组中,和/或将一个码流下的音频参数信息添加到一个数组中;将各个清晰度的数组添加到一个视频段中,和/或将各个码流的数组添加到一个音频段中;将所述视频段和/或音频段添加到一个流媒体内容段中。
发送模块403,用于将所述JSON格式的MPD文件发送至客户端。
实施例四
基于上述实施例二中提供的播放音视频的方法,本实施例中提供一种播放音视频的装置,具体地,图5示出了该播放音视频的装置的可选的结构框图,该播放音视频的装置被分割成一个或多个程序模块,一个或者多个程序模块被存储于存储介质中,并由一个或多个处理器所执行,以完成本申请。本申请所称的程序模块是指能够完成特定功能的一系列计算机可读指令段,比程序本身更适合描述播放音视频的装置在存储介质中的执行过程,以下描述将具体介绍本实施例各程序模块的功能。
如图5所示,应用于客户端的播放音视频的装置具体包括以下组成部分:
接收模块501,用于接收由服务器发送来的JSON格式的MPD文件;其中,所述JSON格式的MPD文件包括多个流媒体内容段,每个流媒体内容段包括一个视频段和/或一个音频段,每个视频段和音频段包括多个数组,每个数组包括音频参数信息或视频参数信息。
具体的,所述音频参数信息包括:码流信息、各个码流下的音频地址信息、以及各个码流下的音频属性信息;
所述视频参数信息包括:清晰度信息、各个清晰度下的视频地址信息、以及各个清晰度下的视频属性信息。
解析模块502,用于解析所述JSON格式的MPD文件,以得到音频参数信息和/或视频参数信息。
具体的,解析模块502,用于:
解析出包含在所述JSON格式的MPD文件中的流媒体内容段;
解析出包含在所述流媒体内容段中的视频段和/或音频段;
解析出包含在所述视频段中的各个清晰度的数组,和/或解析出包含在所述音频段中的各个码流的数组;
解析出包含在所述数组中的对应清晰度的视频参数信息和/或对应码流的音频参数信息。
播放模块503,用于根据所述音频参数信息和/或视频参数信息进行音频和/或视频的播放。
实施例五
本实施例还提供一种计算机设备,如可以执行程序的智能手机、平板电脑、笔记本电脑、台式计算机、机架式服务器、刀片式服务器、塔式服务器或机柜式服务器(包括独立的服务器,或者多个服务器所组成的服务器集群)等。如图6所示,本实施例的计算机设备60至少包括但不限于:可通过系统总线相互通信连接的存储器601、处理器602。需要 指出的是,图6仅示出了具有组件601-602的计算机设备60,但是应理解的是,并不要求实施所有示出的组件,可以替代的实施更多或者更少的组件。
本实施例中,存储器601(即可读存储介质)包括闪存、硬盘、多媒体卡、卡型存储器(例如,SD或DX存储器等)、随机访问存储器(RAM)、静态随机访问存储器(SRAM)、只读存储器(ROM)、电可擦除可编程只读存储器(EEPROM)、可编程只读存储器(PROM)、磁性存储器、磁盘、光盘等。在一些实施例中,存储器601可以是计算机设备60的内部存储单元,例如该计算机设备60的硬盘或内存。在另一些实施例中,存储器601也可以是计算机设备60的外部存储设备,例如该计算机设备60上配备的插接式硬盘,智能存储卡(Smart Media Card,SMC),安全数字(Secure Digital,SD)卡,闪存卡(Flash Card)等。当然,存储器601还可以既包括计算机设备60的内部存储单元也包括其外部存储设备。在本实施例中,存储器601通常用于存储安装于计算机设备60的操作系统和各类应用软件,例如实施例三的播放音视频的装置的程序代码等。此外,存储器601还可以用于暂时地存储已经输出或者将要输出的各类数据。
处理器602在一些实施例中可以是中央处理器(Central Processing Unit,CPU)、控制器、微控制器、微处理器、或其他数据处理芯片。该处理器602通常用于控制计算机设备60的总体操作。
具体的,在本实施例中,处理器602用于执行处理器602中存储的播放音视频的方法的程序,所述播放音视频的方法的程序被执行时实现如下步骤:
获取待封装的流媒体内容,通过解析所述流媒体内容,得到音频参数信息和/或视频参数信息;
根据所述音频参数信息和/或视频参数信息,形成JavaScript对象简谱JSON格式的媒体介绍说明MPD文件;其中,所述JSON格式的MPD文件包括多个流媒体内容段,每个流媒体内容段包括一个视频段和/或一个音频段,每个视频段和音频段包括多个数组,每个数组包括音频参数信息或视频参数信息;
将所述JSON格式的MPD文件发送至客户端。
上述方法步骤的具体实施例过程可参见第一实施例,本实施例在此不再重复赘述。
实施例六
本实施例还提供一种计算机设备,如可以执行程序的智能手机、平板电脑、笔记本电脑、台式计算机、机架式服务器、刀片式服务器、塔式服务器或机柜式服务器(包括独立的服务器,或者多个服务器所组成的服务器集群)等。如图6所示,本实施例的计算机设备60至少包括但不限于:可通过系统总线相互通信连接的存储器601、处理器602。需要指出的是,图6仅示出了具有组件601-602的计算机设备60,但是应理解的是,并不要求实施所有示出的组件,可以替代的实施更多或者更少的组件。
本实施例中,存储器601(即可读存储介质)包括闪存、硬盘、多媒体卡、卡型存储器(例如,SD或DX存储器等)、随机访问存储器(RAM)、静态随机访问存储器(SRAM)、只读存储器(ROM)、电可擦除可编程只读存储器(EEPROM)、可编程只读存储器(PROM)、磁性存储器、磁盘、光盘等。在一些实施例中,存储器601可以是计算机设备60的内部存储单元,例如该计算机设备60的硬盘或内存。在另一些实施例中,存储器601也可以是计算机设备60的外部存储设备,例如该计算机设备60上配备的插接式硬盘,智能存储卡(Smart Media Card,SMC),安全数字(Secure Digital,SD)卡,闪存卡(Flash Card)等。当然,存储器601还可以既包括计算机设备60的内部存储单元也包括其外部存储设备。在本实施例中,存储器601通常用于存储安装于计算机设备60的操作系统和各类应用软件,例如实施例四的播放音视频的装置的程序代码等。此外,存储器601还可以用于暂时地存储已经输出或者将要输出的各类数据。
处理器602在一些实施例中可以是中央处理器(Central Processing Unit,CPU)、控制器、微控制器、微处理器、或其他数据处理芯片。该处理器602通常用于控制计算机设备60的总体操作。
具体的,在本实施例中,处理器602用于执行处理器602中存储的播放音视频的方法的程序,所述播放音视频的方法的程序被执行时实现如下步骤:
接收由服务器发送来的JSON格式的MPD文件;其中,所述JSON格式的MPD文件包括多个流媒体内容段,每个流媒体内容段包括一个视频段和/或一个音频段,每个视频段和音频段包括多个数组,每个数组包括音频参数信息或视频参数信息;
解析所述JSON格式的MPD文件,以得到音频参数信息和/或视频参数信息;
根据所述音频参数信息和/或视频参数信息进行音频和/或视频的播放。
上述方法步骤的具体实施例过程可参见第二实施例,本实施例在此不再重复赘述。
实施例七
本实施例还提供一种计算机可读存储介质,如闪存、硬盘、多媒体卡、卡型存储器(例如,SD或DX存储器等)、随机访问存储器(RAM)、静态随机访问存储器(SRAM)、只读存储器(ROM)、电可擦除可编程只读存储器(EEPROM)、可编程只读存储器(PROM)、磁性存储器、磁盘、光盘、服务器、App应用商城等等,其上存储有计算机可读指令,所述计算机可读指令被处理器执行时实现如下方法步骤:
获取待封装的流媒体内容,通过解析所述流媒体内容,得到音频参数信息和/或视频参数信息;
根据所述音频参数信息和/或视频参数信息,形成JavaScript对象简谱JSON格式的媒体介绍说明MPD文件;其中,所述JSON格式的MPD文件包括多个流媒体内容段,每个流媒体内容段包括一个视频段和/或一个音频段,每个视频段和音频段包括多个数组,每个 数组包括音频参数信息或视频参数信息;
将所述JSON格式的MPD文件发送至客户端。
上述方法步骤的具体实施例过程可参见第一实施例,本实施例在此不再重复赘述。
实施例八
本实施例还提供一种计算机可读存储介质,如闪存、硬盘、多媒体卡、卡型存储器(例如,SD或DX存储器等)、随机访问存储器(RAM)、静态随机访问存储器(SRAM)、只读存储器(ROM)、电可擦除可编程只读存储器(EEPROM)、可编程只读存储器(PROM)、磁性存储器、磁盘、光盘、服务器、App应用商城等等,其上存储有计算机可读指令,所述计算机可读指令被处理器执行时实现如下方法步骤:
接收由服务器发送来的JSON格式的MPD文件;其中,所述JSON格式的MPD文件包括多个流媒体内容段,每个流媒体内容段包括一个视频段和/或一个音频段,每个视频段和音频段包括多个数组,每个数组包括音频参数信息或视频参数信息;
解析所述JSON格式的MPD文件,以得到音频参数信息和/或视频参数信息;
根据所述音频参数信息和/或视频参数信息进行音频和/或视频的播放。
上述方法步骤的具体实施例过程可参见第二实施例,本实施例在此不再重复赘述。
需要说明的是,在本文中,术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含,从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素,而且还包括没有明确列出的其他要素,或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下,由语句“包括一个……”限定的要素,并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。
上述本申请实施例序号仅仅为了描述,不代表实施例的优劣。
通过以上的实施方式的描述,本领域的技术人员可以清楚地了解到上述实施例方法可借助软件加必需的通用硬件平台的方式来实现,当然也可以通过硬件,但很多情况下前者是更佳的实施方式。
以上仅为本申请的优选实施例,并非因此限制本申请的专利范围,凡是利用本申请说明书及附图内容所作的等效结构或等效流程变换,或直接或间接运用在其他相关的技术领域,均同理包括在本申请的专利保护范围内。

Claims (20)

  1. 一种播放音视频的方法,应用于服务器,所述方法包括:
    获取待封装的流媒体内容,通过解析所述流媒体内容,得到音频参数信息和/或视频参数信息;
    根据所述音频参数信息和/或视频参数信息,形成JavaScript对象简谱JSON格式的媒体介绍说明MPD文件;其中,所述JSON格式的MPD文件包括多个流媒体内容段,每个流媒体内容段包括一个视频段和/或一个音频段,每个视频段和音频段包括多个数组,每个数组包括音频参数信息或视频参数信息;
    将所述JSON格式的MPD文件发送至客户端。
  2. 根据权利要求1所述的播放音视频的方法,所述音频参数信息包括:码流信息、各个码流下的音频地址信息、以及各个码流下的音频属性信息;
    所述视频参数信息包括:清晰度信息、各个清晰度下的视频地址信息、以及各个清晰度下的视频属性信息。
  3. 根据权利要求2所述的播放音视频的方法,所述根据所述音频参数信息和/或视频参数信息,形成JavaScript对象简谱JSON格式的媒体介绍说明MPD文件,具体包括:
    将一个清晰度下的视频参数信息添加到一个数组中,和/或将一个码流下的音频参数信息添加到一个数组中;
    将各个清晰度的数组添加到一个视频段中,和/或将各个码流的数组添加到一个音频段中;
    将所述视频段和/或音频段添加到一个流媒体内容段中。
  4. 一种播放音视频的方法,应用于客户端,所述方法包括:
    接收由服务器发送来的JSON格式的MPD文件;其中,所述JSON格式的MPD文件包括多个流媒体内容段,每个流媒体内容段包括一个视频段和/或一个音频段,每个视频段和音频段包括多个数组,每个数组包括音频参数信息或视频参数信息;
    解析所述JSON格式的MPD文件,以得到音频参数信息和/或视频参数信息;
    根据所述音频参数信息和/或视频参数信息进行音频和/或视频的播放。
  5. 根据权利要求4所述的播放音视频的方法,所述音频参数信息包括:码流信息、各个码流下的音频地址信息、以及各个码流下的音频属性信息;
    所述视频参数信息包括:清晰度信息、各个清晰度下的视频地址信息、以及各个清晰度下的视频属性信息。
  6. 根据权利要求5所述的播放音视频的方法,所述解析所述JSON格式的MPD文件,以得到音频参数信息和/或视频参数信息,具体包括:
    解析出包含在所述JSON格式的MPD文件中的流媒体内容段;
    解析出包含在所述流媒体内容段中的视频段和/或音频段;
    解析出包含在所述视频段中的各个清晰度的数组,和/或解析出包含在所述音频段中的各个码流的数组;
    解析出包含在所述数组中的对应清晰度的视频参数信息和/或对应码流的音频参数信息。
  7. 一种播放音视频的装置,应用于服务器,所述装置包括:
    获取模块,用于获取待封装的流媒体内容,通过解析所述流媒体内容,得到音频参数信息和/或视频参数信息;
    构建模块,用于根据所述音频参数信息和/或视频参数信息,形成JavaScript对象简谱JSON格式的媒体介绍说明MPD文件;其中,所述JSON格式的MPD文件包括多个流媒体内容段,每个流媒体内容段包括一个视频段和/或一个音频段,每个视频段和音频段包括多个数组,每个数组包括音频参数信息或视频参数信息;
    发送模块,用于将所述JSON格式的MPD文件发送至客户端。
  8. 一种播放音视频的装置,应用于客户端,所述装置包括:
    接收模块,用于接收由服务器发送来的JSON格式的MPD文件;其中,所述JSON格式的MPD文件包括多个流媒体内容段,每个流媒体内容段包括一个视频段和/或一个音频段,每个视频段和音频段包括多个数组,每个数组包括音频参数信息或视频参数信息;
    解析模块,用于解析所述JSON格式的MPD文件,以得到音频参数信息和/或视频参数信息;
    播放模块,用于根据所述音频参数信息和/或视频参数信息进行音频和/或视频的播放。
  9. 一种计算机设备,所述计算机设备包括:存储器、处理器以及存储在所述存储器上并可在所述处理器上运行的计算机可读指令,所述处理器执行所述计算机可读指令时实现步骤:
    获取待封装的流媒体内容,通过解析所述流媒体内容,得到音频参数信息和/或视频参数信息;
    根据所述音频参数信息和/或视频参数信息,形成JavaScript对象简谱JSON格式的媒体介绍说明MPD文件;其中,所述JSON格式的MPD文件包括多个流媒体内容段,每个流媒体内容段包括一个视频段和/或一个音频段,每个视频段和音频段包括多个数组,每个数组包括音频参数信息或视频参数信息;
    将所述JSON格式的MPD文件发送至客户端。
  10. 根据权利要求9所述的计算机设备,所述音频参数信息包括:码流信息、各个码流下的音频地址信息、以及各个码流下的音频属性信息;
    所述视频参数信息包括:清晰度信息、各个清晰度下的视频地址信息、以及各个清晰度下的视频属性信息。
  11. 根据权利要求9所述的计算机设备,所述根据所述音频参数信息和/或视频参数信息,形成JavaScript对象简谱JSON格式的媒体介绍说明MPD文件,具体包括:
    将一个清晰度下的视频参数信息添加到一个数组中,和/或将一个码流下的音频参数信息添加到一个数组中;
    将各个清晰度的数组添加到一个视频段中,和/或将各个码流的数组添加到一个音频段中;
    将所述视频段和/或音频段添加到一个流媒体内容段中。
  12. 一种计算机设备,所述计算机设备包括:存储器、处理器以及存储在所述存储器上并可在所述处理器上运行的计算机可读指令,所述处理器执行所述计算机可读指令时实现步骤:
    接收由服务器发送来的JSON格式的MPD文件;其中,所述JSON格式的MPD文件包括多个流媒体内容段,每个流媒体内容段包括一个视频段和/或一个音频段,每个视频段和音频段包括多个数组,每个数组包括音频参数信息或视频参数信息;
    解析所述JSON格式的MPD文件,以得到音频参数信息和/或视频参数信息;
    根据所述音频参数信息和/或视频参数信息进行音频和/或视频的播放。
  13. 根据权利要求12所述的计算机设备,所述音频参数信息包括:码流信息、各个码流下的音频地址信息、以及各个码流下的音频属性信息;
    所述视频参数信息包括:清晰度信息、各个清晰度下的视频地址信息、以及各个清晰度下的视频属性信息。
  14. 根据权利要求12所述的计算机设备,所述解析所述JSON格式的MPD文件,以得到音频参数信息和/或视频参数信息,具体包括:
    解析出包含在所述JSON格式的MPD文件中的流媒体内容段;
    解析出包含在所述流媒体内容段中的视频段和/或音频段;
    解析出包含在所述视频段中的各个清晰度的数组,和/或解析出包含在所述音频段中的各个码流的数组;
    解析出包含在所述数组中的对应清晰度的视频参数信息和/或对应码流的音频参数信息。
  15. 一种计算机可读存储介质,其上存储有计算机可读指令,所述计算机可读指令被处理器执行时实现步骤:
    获取待封装的流媒体内容,通过解析所述流媒体内容,得到音频参数信息和/或视频参数信息;
    根据所述音频参数信息和/或视频参数信息,形成JavaScript对象简谱JSON格式的媒体介绍说明MPD文件;其中,所述JSON格式的MPD文件包括多个流媒体内容段,每个流媒体内容段包括一个视频段和/或一个音频段,每个视频段和音频段包括多个数组,每个 数组包括音频参数信息或视频参数信息;
    将所述JSON格式的MPD文件发送至客户端。
  16. 根据权利要求15所述的计算机可读存储介质,所述音频参数信息包括:码流信息、各个码流下的音频地址信息、以及各个码流下的音频属性信息;
    所述视频参数信息包括:清晰度信息、各个清晰度下的视频地址信息、以及各个清晰度下的视频属性信息。
  17. 根据权利要求15所述的计算机可读存储介质,所述根据所述音频参数信息和/或视频参数信息,形成JavaScript对象简谱JSON格式的媒体介绍说明MPD文件,具体包括:
    将一个清晰度下的视频参数信息添加到一个数组中,和/或将一个码流下的音频参数信息添加到一个数组中;
    将各个清晰度的数组添加到一个视频段中,和/或将各个码流的数组添加到一个音频段中;
    将所述视频段和/或音频段添加到一个流媒体内容段中。
  18. 一种计算机可读存储介质,其上存储有计算机可读指令,所述计算机可读指令被处理器执行时实现步骤:
    接收由服务器发送来的JSON格式的MPD文件;其中,所述JSON格式的MPD文件包括多个流媒体内容段,每个流媒体内容段包括一个视频段和/或一个音频段,每个视频段和音频段包括多个数组,每个数组包括音频参数信息或视频参数信息;
    解析所述JSON格式的MPD文件,以得到音频参数信息和/或视频参数信息;
    根据所述音频参数信息和/或视频参数信息进行音频和/或视频的播放。
  19. 根据权利要求18所述的计算机可读存储介质,所述音频参数信息包括:码流信息、各个码流下的音频地址信息、以及各个码流下的音频属性信息;
    所述视频参数信息包括:清晰度信息、各个清晰度下的视频地址信息、以及各个清晰度下的视频属性信息。
  20. 根据权利要求18所述的计算机可读存储介质,所述解析所述JSON格式的MPD文件,以得到音频参数信息和/或视频参数信息,具体包括:
    解析出包含在所述JSON格式的MPD文件中的流媒体内容段;
    解析出包含在所述流媒体内容段中的视频段和/或音频段;
    解析出包含在所述视频段中的各个清晰度的数组,和/或解析出包含在所述音频段中的各个码流的数组;
    解析出包含在所述数组中的对应清晰度的视频参数信息和/或对应码流的音频参数信息。
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