WO2010078823A1

WO2010078823A1 - Method, apparatus, and system for controlling media based on texts

Info

Publication number: WO2010078823A1
Application number: PCT/CN2009/076365
Authority: WO
Inventors: 杨玮玮
Original assignee: 华为技术有限公司
Priority date: 2009-01-12
Filing date: 2009-12-31
Publication date: 2010-07-15
Also published as: CN101778090A

Abstract

The technical field of the invention relates to network communications, and in particular to a method, apparatus, and system for controlling media based on texts. The method for controlling media based on texts includes: a media gateway receives a media operation command request which includes a media operation indication based on texts, and operates media data according to the media operation indication based on texts. The media gateway in the embodiments includes: a receiving unit for receiving the media operation command request which includes the media operation indication based on texts; an operation unit for operating the media data according to the media operation indication based on texts. The present invention is suitable for the media operation control in network communications.

Description

A text-based media control method, device and system. The present application claims a Chinese application filed on January 12, 2009, with the application number 200910001788.7, entitled "A Text-Based Media Control Method, Apparatus and System" Priority is hereby incorporated by reference in its entirety.

Technical field

The present invention relates to network communication technologies, and in particular, to a text-based media control method, apparatus and system. Background technique

MGC (Media Gateway Controller) and MG (Media Gateway) are two key components in a packet network. The MGC is responsible for the call control function, and the MG is responsible for the service bearer function, thereby separating the call control plane and the service bearer plane, thereby fully sharing network resources, simplifying equipment upgrades and service expansion, and greatly reducing development and maintenance costs.

The H.248 protocol (Gateway Control Protocol) provides a range of means to support interactive control of multimedia files, including playback, pause, resume, fast forward, and backward of voice files. The H.248.9 (Advanced Audio Server Package) protocol also provides a variety of implementations for voice applications, such as TTS (Text To Speech), which is the MGC control MG for speech-to-speech speech synthesis. However, in the above mechanism, the media playback content control method is only performed by means of time information and coded information, including NPT (Normal Play Time) format, SMPTE (Society of Motion Picture and Television Engineers, film and television). Engineers learn) format, UTC (Universal Time Code) format, Frame (frame number) format, Byte (bytes) format, and so on.

In the process of implementing the present invention, the inventors have found that: The above protocol lacks a control means for text files, thereby failing to support interactive operations on text information, for example, in speech synthesis, it is not possible to support paragraph level according to script text. control. Lack of the above mechanism leads to the language in H.248.9 The sound synthesis method is also limited to the most basic play and stop, and can not effectively control the text media of H.248 and meet the various needs of multimedia applications. Summary of the invention

Embodiments of the present invention provide a text-based media control method, apparatus, and system, which can solve the problem that an existing mechanism cannot support text-based media file operation control.

Embodiments of the present invention use the following technical solutions:

An embodiment of the present invention provides a text-based media control method, including:

The media gateway receives a command request for a media operation, where the command request includes a text-based media operation indication;

The media data is operated according to the text-based media operation indication.

An embodiment of the present invention provides a media gateway, including:

a receiving unit, configured to receive a command request of a media operation, where the command request includes a text-based media operation indication;

And an operation unit, configured to operate on the media data according to the text-based media operation indication.

An embodiment of the present invention provides a network system, including:

a media gateway controller, configured to send a command request for a media operation to the media gateway, where the command request includes a text-based media operation indication;

The media gateway is configured to receive a command request for a media operation, where the command request includes a text-based media operation indication, and operate the media data according to the text-based media operation indication.

A text-based media control method, apparatus, and system provided by an embodiment of the present invention, by a command request for a media operation sent to a media gateway, the command request includes a text-based media operation indication, and the media gateway is based on the text-based The media operation instruction can control the playback of the text type media file, thereby realizing the effective control of the text type media and satisfying various requirements of the multimedia application. DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any inventive labor.

1 is a flowchart of a text-based media control method according to an embodiment of the present invention;

2 is a flowchart of a text-based media control method according to Embodiment 2 of the present invention;

3 is a flowchart of a text-based media control method according to Embodiment 3 of the present invention;

4 is a flowchart of a text-based media control method according to Embodiment 4 of the present invention;

Figure 5 is a schematic illustration of an MG of an embodiment of the present invention;

Figure 6 is a schematic diagram of a network system in accordance with an embodiment of the present invention. detailed description

A text media control method, apparatus, and network system according to an embodiment of the present invention are described in detail below with reference to the accompanying drawings.

It should be understood that the described embodiments are only a part of the embodiments of the invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

An embodiment of the present invention provides a text-based media control method, including: an MG receiving a command request for a media operation, where the command request includes a text-based media operation indication;

With the text-based media control method of the embodiment of the present invention, the purpose of controlling the media file on the MG by text information can be realized by the text-based media operation instruction carried in the command request sent to the MG.

The method of controlling the text medium of the embodiment of the present invention will be described in detail below in a more specific implementation.

Embodiment 1 This embodiment is a specific implementation manner for the MGC to implement interactive control of the text media on the MG by using the text-based media operation indication, where the media operation indication is a skip offset indication signal. Take the TTS (Text-to-Speech) application on the MG as an example.

As shown in FIG. 1, the embodiment may include the following steps:

5101. The MGC instructs the MG to perform a TTS operation on the specific text content by sending a Modify Request message, where the Play Segment Identifier (playidid) signal is carried.

5102. The MG sends a modification response message to the MGC, and performs a TTS operation.

This embodiment needs to instruct the MG to perform a hopping offset in the TTS operation, so steps S101 and S102 need to be performed. In other embodiments, it may not be necessary to perform these two steps, or the corresponding two steps need to be adjusted.

5103. The MGC sends a text-based hopping offset indication signal to the MG, and the MG is required to perform a hopping offset operation of the media play, for example, requiring 20 sentences to jump forward at the current playback position.

Specifically, the hopping offset indication signal is carried in the request message, and may be an H.248 request message such as Modify, Move, Add, or the like.

The skip offset indication signal can be implemented by means of a signal in H.248; and the skip offset indication signal is based on text, that is, carrying the text format based operation information in the skip offset indication signal. Specifically, it is defined in the following manner.

A jump offset indication signal (Sign) is defined for the MGC to instruct the MG to perform a skip offset operation on the media resource or signal, for example, the signal is named "Jump". This signal can be defined in an existing package or in a new package. For example, define a new package and name it "Play Offset Control Package (poc)". The type of the signal can be set to Brief (Brief, BR) type, indicating that the signal can be automatically stopped or replaced by a new signal descriptor. This BR type signal has no expiration time limit.

This signal can be applied to a terminal (Termination) or a stream (Stream) on the terminal. If the signal is included in a signal descriptor that is sent to a terminal or stream, it indicates that it needs to be at the terminal or stream. Perform a jump on it.

The skip offset indication signal may include an operation object parameter, or may further include a skip offset value and a skip offset value unit.

The operation object parameter may include a media resource or a signal, and the operation object parameter may be defined by a signal parameter, and the operation object parameter may include at least one of the following parameters:

(1) Signal Identifier (abbreviated as si), indicating the signal to perform the skip offset. The type of this parameter is a string with the format "package ID/signal ID".

(2) Signal List ldentifier (abbreviated as sli), indicating the signal list for which the skip offset is to be performed. The type of this parameter is an integer.

(3) Media Resource Identifier (mri), which indicates the media resource to perform the jump offset. The type of the parameter is a string, for example, a URI (Universal Resource Locator) or an IRI (Internationalized Resource Identifier) format. When multiple instances of the same signal exist on a terminal or stream, they can be distinguished by the media resource identification.

The above three parameters (1), (2), and (3) are used to identify the execution object of the jump offset operation, and the corresponding media resource or signal can be specified by any one of the three parameters or any combination between them. .

In addition, the jump offset value and the corresponding jump offset value unit may also be implemented by means of signal parameters. In the definition of the jump offset value and the skip offset value unit, in addition to the time mode, the text format-based jump offset operation can be supported by adding a text format (such as a word, a sentence, or a segment information), which can be implemented. Control of text-based media files. The execution content of the jump offset operation specifically includes a combination of one or two of the following parameters.

(4) Jump Value (abbreviated as jv ) indicating the value of the jump offset to be performed. The type of this parameter is an integer (Integer ), and the value includes all positive integers, 0 and negative integers. Among them, a positive integer indicates that the jump offset is performed in the positive direction; a negative integer indicates that the jump offset is performed in the negative direction.

(5) Jump Unit (Value Unit, abbreviated as vu), indicating that the jump offset is to be performed. The unit of value, that is, the unit corresponding to the jump offset value. The type is an enumeration. The value of this parameter includes Millisecond (corresponding to the unit of milliseconds), Second (corresponding to the unit of seconds), Frame (corresponding to the frame), and Byte (corresponding to the byte). In addition to the number, support for text formatting is added, including: Word (corresponding to a single word), Sentence (corresponding to a single sentence), Paragraph (corresponding to a single paragraph), and so on. This parameter can be set to be optional. A default value can be set in the configuration mode, so that the MGC can only send a skip value parameter.

The above two parameters (4) and (5) are used to indicate the execution content of the jump offset operation, that is, the offset size and the control granularity. These two parameters can also be defined in any combination.

For example, you can define the value of the jump offset value as a positive integer and 0, and define a Jump Direction (abbreviated as jd) parameter to indicate the direction in which the jump offset is to be performed. The type of this parameter is Enumeration, and the value is Forward or Backward. The value is forward to indicate a jump in the positive direction; the value is backward to indicate a jump in the negative direction.

The embodiment of the present invention is not limited thereto, and only one parameter regarding the media operation indication may be defined, and the value of the parameter includes the above information, that is, the jump offset value and the skip offset value unit. For example, the parameter can be named Jump Content (abbreviated as jc), the type is a string, and the value format can be "jump content = "value unit = jump value," which can be written as "jc= "vu=jv"" , where the definition and content of the value unit and the jump value are the same as previously described. For example, jc= "Second=-10", the jump offset value is 10 seconds backward; and jc= " Sentence=20,,, indicates that the jump offset value is 20 forward sentences.

In order to maintain the state of the current playback signal on the MG, the MGC needs to carry the currently played signal and/or signal list through the signal descriptor while indicating that the MG needs to continue to perform the corresponding signal playback operation.

In this embodiment, the MGC sends a Jump signal to the MG, where the parameters of the hop offset value and the hop offset value unit are carried out, and the specific manner is: "jv=20, vu=Sentence", indicating that the MG is required. Perform a jump offset of the first 20 sentences. In the signal descriptor issued, except for the jump letter In addition to the number, the MGC needs to carry the TTS operation signal currently being played (for example, the segment identification play signal).

However, the embodiment of the present invention is not limited thereto, and the MGC may also include only the skip offset value in the Jump signal sent to the MG, and the skip offset value unit may be the default parameter.

S104. The MG performs a skip offset operation on the specified media resource or signal according to the received request message. In this example, the MG performs a skip offset operation on the previous TTS signal, that is, it skips 20 sentences forward and continues the TTS operation. At the same time, the MG also sends a request response message to the MGC.

For the skip offset indication signal sent by the MGC, the MG may not respond correctly.

If the MG does not support the above-mentioned hop offset value or hop offset value unit, or the hop offset value delivered by the MGC has exceeded the range of the operating media on the MG (for example, 30 sentences are sent to a text file with only 20 sentences). The hopping offset indication), the MG may return an error message to the MGC, such as error code 449 ("Unsupported or Unknown Parameter or Property Value", a parameter or attribute value that cannot be supported or unknown). However, when the operations to which the parameters belong cannot be performed, for example, the MGC issues a segment-based jump to the media audio data on the MG or a time-based jump to the text file, or the MG only supports a part of the value unit. At this time, the MG can return an error message to the MGC. Define a new error code to describe this error message, such as naming the error code "Unsupported Offset Unit". In the above scenario, the MG returns the error message to the MGC.

In this embodiment, the operation of the text media file on the MG is implemented by carrying the text-based hopping offset indication signal in the message sent by the MGC to the MG, and thus the embodiment of the present invention implements the H.248-to-text media file. Interactive control provides a simple and effective solution for text-based media control. Embodiment 2

Different from the first embodiment, the method in this embodiment is that the MGC controls the offset operation of the media play on the MG by carrying the media operation indication in the existing media operation signal. Wherein, in this embodiment The media operation indication includes an offset value, or includes an offset value and an offset unit. As shown in FIG. 2, this embodiment may include the following steps:

S201. The MGC instructs the MG to perform a text-to-speech operation on the specific text content by carrying a Play Segment Identifier (playid) signal in the Modify request message, and carries the offset value and the offset unit.

The following describes the signal parameters carrying the media operation indication, including the offset value and the corresponding offset unit, which can be defined by means of signal parameters. Similarly, for text files or applications, time and other methods may not be effective, so in the definition of values and value units, in addition to the time mode, set the text format to support text-based offset operations, you can achieve Control of text-based media files.

Parameter 1: Play Offset (po), which indicates the value to be offset. This parameter represents the above offset value. The type of this parameter is an integer (Integer ), and the value includes all positive integers, 0 and negative integers. Wherein, a positive integer indicates that the jump offset is performed in the positive direction; a negative integer indicates that the jump offset is performed in the negative direction.

Parameter 2: Offset Unit (abbreviated as ou), which represents the unit of the offset to be executed, that is, the unit corresponding to the playback offset parameter. The type is an enumeration. The value of this parameter includes Millisecond (corresponding to the unit of milliseconds), Second (corresponding to the unit of seconds), Frame (corresponding to the frame), and Byte (corresponding to the byte). In addition to the number, support for text formatting is added, including: Word (corresponding to a single word), Sentence (corresponding to a single sentence), Paragraph (corresponding to a single paragraph), and so on. Offset Unit This parameter can be set to optional. By setting a default value, the MGC can only send one parameter, that is, only the offset value.

When the MGC sends a playback signal to the MG, the signal parameter is carried at the same time to indicate the offset of the signal playback, that is, the playback of the signal is not performed from the initial position of the file, but the offset parameter is added from the initial position. The position after the offset is represented begins.

In this embodiment, it is assumed that the above signal parameter takes the value: "po=20, ou=Sentence" The MG is required to start from the beginning of the file position to the position of the next 20 sentences, that is, to perform text-to-speech conversion from the 21st sentence of the text.

S202. The MG starts the TTS operation from the specified offset position according to the received request message; and the MG sends a request response message to the MGC.

In this embodiment, the control of the offset operation of the media play on the MG is realized by carrying the signal parameters of the offset information in the existing media operation signal. Embodiment 3

In this embodiment, the MGC uses a text-based media operation indication to control the playback range of the media file on the MG, wherein the media operation indication is a text range value parameter, or a combination of a text range value parameter and a text range format parameter. The text range format parameter includes a text-based value unit, and includes at least one of the following units: a word, a sentence, or a segment.

The text-based media operation indication includes a text range parameter, and the text range parameter includes: a value of one or more text ranges, or a combination of one or more text range values and text range format parameters;

As shown in FIG. 3, the implementation of this embodiment may include the following steps:

S301: The MGC sends a request message for the media operation to the MG, where the request message includes a text range value parameter and a text range format parameter. At the same time, the MGC can issue a detection event of the media operation result to understand the execution of the operation.

Specifically, the MGC sends a Play Script signal to the MG by modifying the request message, instructing the MG to perform a TTS operation on the file script. The text range format parameter (Text Range Format, trf) and text range value (trv) are carried in the message.

The trf parameter type can be an enumeration or a string. If the trf parameter is an enumeration type ( Enumeration ), the value range of the parameter can include Word (corresponding to a single word), Sentence (corresponding to a single sentence), Paragraph (corresponding to a single paragraph), and so on. Taking a string type as an example, the above different enumeration values can be respectively defined or agreed as a string, and It is necessary to pre-agreed possible strings between the MGC and the MG.

The trv parameter is of type string and can contain multiple text range information. For example, the format can be "first text range, second text range, ...", where each text range has the format " The value of a text-value of the second text may be that the first value is earlier or smaller than the second value, or the first value may be later or greater than the second value.

In this embodiment, the parameter included in the Modify request message is: "trf=Sentence, trv=5-10", indicating that the MGC wants the MG to perform a text-to-speech operation on the fifth to tenth sentences in the text. In the modification request message, the MGC can also set the signal completion event (g/sc) and the TTS operation failure event (aastts/ttsfail) to indicate the execution of the MG detection signal.

The text range value parameter may also be included in the request message, and the text range format parameter is used as the default parameter.

The embodiment of the present invention is not limited thereto, and a text range parameter may be defined, where the text range parameter includes: one or more text range values, or one or more text range values and text range format parameters. combination. The text range format parameter includes a text-based value unit including at least one of the following units: a word, a sentence, or a segment. If only the text range value parameter is included, the text range format parameter is used as the default parameter.

The parameter can be carried in the request message of the media operation sent by the MGC to the MG to control the text media file on the MG.

For example, name the text range parameter "Text Range, tr". The parameter is of type string and can contain multiple text range information in the format of "first text range, second text range, ...", where the value format of each text range information is "text" Range format = text range value". For example, the parameters included in the Modify request message described above:

"trf=Sentence, trv=5-10", can also be tr= "Sentence=5-15, Sentence=20-25," indicating that the text to be executed from the 5th to the 15th sentence, 20th to 25th sentences.

S302. The MG performs a TTS operation on the fifth to tenth sentences in the text script according to the instruction of the MGC. At the same time, the MG sends a response message to the MGC. That is, after receiving the Modify request message, the MG learns from the request message that the MGC wishes to perform a text-to-speech operation on the fifth to tenth sentences in the text script, and then performs the operation according to the instruction.

5303. The MG reports the TTS operation result to the MGC by requesting the notification.

If the operation is successful, the MG reports a signal completion event (g/sc); if the operation fails, the MG reports a TTS operation failure event (aastts/ttsfail), and may also carry the failure cause information through the event parameter.

5304. The MGC sends a notification response message to the MG.

Steps S303 and S304 are optional steps, and are not essential in the embodiment of the present invention. The embodiment of the present invention is not limited to the solution described in Embodiment 3. The playback of the text media on the MGC control MG can also implement the playback control of the text media on the MG by carrying text range control parameters in other command requests sent by the MGC.

In this embodiment, the text range control parameter can be applied to various media control operations by carrying the text range control parameter in the command request sent to the MG, such as media play, pause, resume, fast forward, fast reverse, and play speed. Or bandwidth adjustment, etc., can achieve interactive playback control of text media on the MG. Embodiment 4

In this embodiment, the MGC controls the playback of the text media on the MG by a pause command carrying a text-based media operation indication.

As shown in FIG. 4, this embodiment may include the following steps:

S401. The MGC sends a pause command to the MG, requesting the MG to suspend the media operation.

For example, when the voice text conversion operation for one or some text media segments is being performed on the MG, for some specific reason, the MGC wants the MG to suspend the operation, the MGC may issue a pause command in H.248 to the MG. While issuing the pause command, the MGC can carry the text range format parameter and the text range value parameter, and assign the value "$" to the parameter, where "$" is the "Choose" wildcard, indicating that the MGC wants to obtain the MG. Perform a text that pauses the media operation Body range.

MGC can assign a text range format parameter to a specific value, such as "Word", and assign a text range value parameter to "$", indicating that the MGC wants to know which word to play on the MG when the pause operation is in effect; Similarly, the MGC can also assign the value of both parameters to "$", indicating that the MG selects the granularity of the reported text range information, that is, the word, sentence or paragraph, that is, the MG itself decides to report the pause operation when the text media operation is performed. The position to be executed is represented by the specific position of the word, sentence or paragraph.

5402. The MG suspends the media operation according to the instruction of the MGC.

If the MG is in the process of performing a voice text conversion operation of a text media segment, the operation is suspended when an instruction to request a pause is received.

5403. The MG reports the specific text range when the pause operation is performed to the MGC by using a response message. If the MGC is issuing a pause indication, the text range format parameter carried in the pause indication is

"Word", the text range value parameter is the specific text range in which the MG reports to the MGC to suspend the operation. Which word should be played on the MG when the pause operation is in effect. Of course, if the text range format parameter and the text range value parameter carried in the pause indication issued by the MGC are both the MG and the MGC report the specific text range when the operation is suspended, the MG can actually play the words and sentences according to the actual play. Or the actual location of the paragraph is reported.

In this embodiment, the text media control parameter is implemented in the media control command, and the text media control is implemented on the MG, and the MGC can obtain the MG through the feedback message of the MG when the text media is controlled according to the message. The range of text to be executed on the MG.

The embodiment of the present invention is not limited thereto, and the wildcard parameter "$," used in the text control information in the fourth embodiment can also be applied to the fast forward and rewind operations of the MGC to play a text file on the MG. In the indication, it can be applied to the first embodiment and the second embodiment.

The text-based media control method of an embodiment of the present invention may be accomplished by a command request between the MGC and the MG including a text-based media control indication. Among them, MGC's command types for MG include Add, Modify, Subtract, Move, and Audit. Value (AuditValue), Audit Capabilities, Notify, ServiceChange, etc. Command parameters, including: Property, Signal, Event, Statistic. And the text-based media control indication can also be carried in a packet formed by aggregation of parameters with business relevance.

Embodiments of the present invention enable operations such as play, pause, fast forward, and rewind of text media files on the MG through text-based media control indications, while text-based media control indications can also be carried in the MGC in a variety of ways. It is sent to the media control command request of the MG, and thus the embodiment of the present invention implements the interactive control of the H.248 text media file, providing a simple and effective solution for text-based media control. An MG provided by an embodiment of the present invention, as shown in FIG. 5, includes:

The receiving unit 501 is configured to receive a command request for a media operation, where the command request includes a text-based media operation indication;

The operating unit 502 is configured to operate on the media data according to the text-based media operation indication.

Based on the above embodiment, the text-based media operation indication includes any one of the following: a skip offset indication signal; an offset value, or an offset value and an offset unit; a text range value parameter, or a text range Combination of format parameters and text range value parameters; text range parameters, including: one or more text range values, or a combination of one or more text range values and text range format parameters. The offset unit and the text range format parameter, including the text-based value unit, include at least one of the following units: a word, a sentence, or a segment. A network system, as shown in FIG. 6, is also provided in the embodiment of the present invention, including:

a media gateway controller 601, configured to send a media operation command request to the media gateway, where the command request includes a text-based media operation indication;

The media gateway 602 is configured to receive a command request for a media operation, where the command request includes a text-based media operation indication, and according to the text-based media operation indication, the number of media According to the operation.

The MGC and the MG, and the network system provided by the embodiments of the present invention can implement the MGC control of the text media file on the MG by referring to the foregoing embodiments of the text-based media control method, and can be performed by the text media sent to the MG by the MGC. The command request includes a text-based media operation indication, and the MG can control the playback operation of the text-based media file according to the text-based media operation instruction, thereby implementing effective control of the text-based media and satisfying each of the multimedia applications. Class requirements.

A person skilled in the art can understand that all or part of the process of implementing the above embodiment method can be completed by a computer program to instruct related hardware, and the program can be stored in a computer readable storage medium. In execution, the flow of an embodiment of the methods as described above may be included. The storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM).

The above is only the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any change or replacement that can be easily conceived by those skilled in the art within the technical scope of the present invention is All should be covered by the scope of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

Claim

A text-based media control method, comprising:

2. The method of claim 1, wherein the media operation indication comprises a skip offset indication signal.

3. The method according to claim 2, wherein the jump offset indication signal comprises an operation object parameter, and the operation object parameter comprises at least one of the following parameters:

a signal identifier indicating a signal to perform a skip offset;

a signal list identifier indicating a list of signals to perform a skip offset;

Media resource identifier, indicating the media resource to perform the skip offset.

4. The method of claim 2, wherein the skip offset indication signal further comprises a skip offset value.

The method according to claim 4, wherein the skip offset indication signal further comprises a skip offset value unit; the skip offset value unit comprises a text-based value unit, including: a word, a sentence Or paragraph.

6. The method according to claim 1, wherein the media operation indication comprises an offset value, or comprises an offset value and an offset unit.

7. The method according to claim 6, wherein the offset unit comprises a text-based value unit, and at least one of the following units: a word, a sentence or a segment.

8. The method of claim 1 wherein:

The text-based media operation indication includes a text range value parameter, or a combination of a text range value parameter and a text range format parameter; or

The text-based media operation indication includes a text range parameter, and the text range parameter includes: One or more text range values, or a combination of one or more text range values and text range format parameters;

The text range format parameter includes a text-based value unit, and includes at least one of the following units: a word, a sentence, or a segment.

The method according to any one of claims 1 to 8, wherein the media data is media data in a text format.

10. A media gateway, comprising:

a receiving unit, configured to receive a command request for a media operation, where the command request includes a text-based media operation indication;

11. The media gateway of claim 10, wherein the text-based media operation indication comprises at least one of the following information items:

Jump offset indication signal;

Offset value, or offset value and offset unit;

a text range value parameter, or a combination of a text range format parameter and a text range value parameter; a text range parameter, including: a value of one or more text ranges, or a combination of one or more text range values and text range format parameters;

The offset unit and text range format parameters, including text-based value units, include at least one of the following units: a word, a sentence, or a segment.

12. A network system, comprising: