WO2017137625A1 - Method for generating a video stream, method for generating a plurality of video streams, method for generating a multimedia stream - Google Patents

Abstract

The invention relates to a method (PRC1) for generating a video stream from a slide, said method (PRC1) comprising the following steps: - providing (100) a slide comprising: · an area, termed the information area, including at least one item of information intended to be displayed and, · an area, termed the comments area, including at least one comment; - identifying (101), in the information area, an item of information to be integrated into the video stream; - associating (102) the item of information to be integrated with a comment from the comments area; - entering (103) a conversion value; - associating (104) the conversion value with the comment, in order to determine an animation duration of the item of information to be integrated; - generating (105) a video stream comprising the item of information to be integrated, said item of information being animated for the animation duration.

Description

 METHOD FOR GENERATING A VIDEO STREAM,

 METHOD FOR GENERATING A PLURALITY OF VIDEO STREAMS,

 METHOD FOR GENERATING A MULTIMEDIA STREAM

TECHNICAL FIELD OF THE INVENTION

The invention relates to the general field of video editing.

The invention relates more particularly to a method of generating a video stream from a slide having at least one piece of information to be integrated in said video stream. The method of generating a video stream according to the invention makes it possible to optimize the production of a video montage.

The invention further relates to a method of generating a plurality of video streams from a plurality of slides.

Finally, the invention relates to a method of generating a multimedia stream comprising at least one video stream. BACKGROUND OF THE INVENTION

A video montage makes it possible to assemble different elements (image, sound, text, video) in a particular order in order to give form and coherence to a content, for example of multimedia type.

To make a video montage, an operator usually starts by importing the multimedia data that he wishes to integrate into his multimedia content. "Multimedia data" means images, videos or sound. In addition, "multimedia content" means a content comprising a multiplicity of multimedia data. The multimedia data is then positioned in a timeline or "timeline" in chronological order. During video editing, multiple media data can be overlaid in the edit window so that the data appears at the same time when playing the media. In addition, transitions and effects can be added to enhance the flow of multimedia data and thus the quality of the final multimedia content. Today, many tools have been developed to facilitate the production of video montages.

However, a video montage made from a plurality of multimedia data, intended to be displayed at the same time during the playback of the multimedia stream, is long to achieve. The development of such a video editing is therefore restrictive for the operator, especially when he must make several video montages in a short period of time.

Indeed, when several multimedia data must be superimposed in a video montage, synchronization during playback of the multimedia stream generally requires a prior division of each multimedia data in a plurality of small sequences, for example, video or audio. The operator is then responsible for organizing said sequences by ensuring that there is no gap between two sequences that must be superimposed so that they are properly synchronized during playback of the multimedia content. Such a work of cutting and organizing for the realization of a quality video editing takes time and generally requires the contribution of a plurality of operators.

GENERAL DESCRIPTION OF THE INVENTION

In this context, the invention aims to remedy all or part of the disadvantages of the state of the art identified above, including providing a solution for performing a video editing faster.

Thus, according to a first aspect, the invention relates to a method of generating a video stream from a slide, said method comprising the following steps:

 - supply of a slide comprising:

 An area, called an information area, including at least one information intended to be displayed and,

 • a zone, called comment zone, including at least one comment;

identification, on the information zone, of information to be integrated in the video stream; - association of the information to be included in a comment of the comment area;

 - entering a conversion value;

 - association of the conversion value with the comment to determine a duration of animation of the information to be integrated;

 generation of a video stream comprising the information to be integrated animated according to the animation duration.

The term "video stream" means a succession of images that takes place over time. The method according to the first aspect of the invention makes it possible to solve the problems mentioned above.

Indeed, thanks to the method according to the invention, when the video stream is incorporated in a montage window to generate a multimedia stream, said video stream is already configured so that the information is displayed synchronously with the recorded comment, for example in the form of an audio stream or a video clip, and incorporated in the editing window. By "comment" is meant a text that describes, gives details about the information contained in the video stream.

To correctly synchronize the video stream and the recorded comment, the information is animated according to an animation duration which takes into account a conversion value entered by the operator and the characteristics of the comment. The conversion value is, for example, the average speech rate of an adult. The characteristics of the comment are, for example, the number of words contained in said comment. The calculated animation duration is then an estimate of how long an adult would be writing the comment. Thus, when the video stream, including the information animated according to the animation duration, is superimposed on the comment recorded in the editing window, the video stream and the recorded comment will be synchronized during the playback of the multimedia stream. In other words, the information will become animated while the comment is debited. Thus, thanks to the method according to the invention, during the video editing, it is no longer necessary to cut a video stream or an audio stream into a video stream. multiple sequences and organize them so that the sequences that must be displayed at the same time are superimposed.

The method according to the invention therefore makes it possible to reduce the time required to produce a video montage, in particular when an operator wishes that several multimedia data (video, images, sound) be displayed at the same time and during the same time. duration when playing the final media stream.

The method according to the first aspect of the invention may also have one or more of the features below, considered individually or in any technically possible combination. According to a non-limiting embodiment, the information to be integrated is a text or an image.

According to a non-limiting embodiment, the step of associating the information to be integrated in a comment is carried out by means of a marking of the comment, said marking indicating that said comment is associated with said integrated information identified to integrate. .

According to a non-limiting embodiment, the conversion value is a number of words per unit of time.

Furthermore, the invention relates, according to a second aspect, to a method of generating a plurality of video streams from a plurality of slides, each video stream being generated from a slide by the method according to the first aspect, said method comprising the following steps:

 - identifying a slide among the plurality of slides;

 associating said slide with a video stream among the plurality of video streams. In addition, the invention relates, according to a third aspect, to a method of generating a multimedia stream characterized in that it comprises the following steps:

 providing a video stream generated by the method according to the first aspect;

 - recording a comment as an audio stream or video clip;

- generation of a multimedia stream including the video stream provides and the comment recorded as an audio stream or video clip.

The method according to the third aspect of the invention may also have one or more of the features below, considered individually or in any technically possible combination.

According to a non-limiting embodiment, the method comprises the following steps:

 - entering a first position corresponding to a first display area of the video stream in the display area of the multimedia stream;

 - association of the first position to the video stream.

According to a non-limiting embodiment, the method comprises the following steps:

 - Entering a second position corresponding to a second display area of the video stream in the display area of the multimedia stream;

 - identification of a final sequence in the video stream;

 associating said final sequence with said second position.

BRIEF DESCRIPTION OF THE FIGURES Other characteristics and advantages of the invention will emerge on reading the description which follows, with reference to the appended figures which illustrate:

 in FIG. 1, a first terminal allowing the implementation of the method of generating a video stream according to one embodiment of the invention,

 in FIG. 2, the steps of the method of generating a video stream according to an embodiment,

 in FIG. 3, the generation of a video stream, according to a first embodiment of the invention, from a slide comprising information,

in FIG. 4, the generation of a video stream, according to a second embodiment of the invention, from a slide comprising a plurality of information, in FIG. 5, the steps of the method of generating a plurality of video streams from a plurality of slides according to one embodiment of the invention,

 in FIG. 6, the generation of a plurality of video streams from a plurality of slides according to one embodiment of the invention,

 in FIG. 7, an infrastructure allowing the implementation of the method of generating a multimedia stream according to one embodiment of the invention,

in FIG. 8, the steps of the method of generating a multimedia stream according to one embodiment of the invention,

 in FIG. 9, the generation of a video comprising a plurality of comments from a slide according to one embodiment of the invention,

 in FIG. 10, the generation of a multimedia stream comprising a video stream and a video clip according to one embodiment of the invention,

 - In Figure 1 1, the steps of a method of generating a graph for determining one or more training modules according to the profile of an operator according to one embodiment of the invention.

The invention and its various applications will be better understood by reading the following description and examining the figures that accompany it. These are presented as non-limiting examples of the invention.

DETAILED DESCRIPTION OF AT LEAST ONE EMBODIMENT OF THE INVENTION

Unless otherwise specified, the same element appearing in different figures has a unique reference. The invention relates, in a first aspect, to a PRC1 for generating an FLV video stream from a DIAP slide.

The generation of an FLV video stream according to the invention is implemented by a first terminal 10 represented in FIG.

Whether it is a computer, a mobile phone, a tablet or a connected object, the first terminal 10 comprises:

a microprocessor 1 1, storage means 12,

 a communication interface 13,

 - a screen 14.

The microprocessor 11 of the first terminal 10, the storage means 12 of the first terminal 10, the communication interface 13 of the first terminal 10 and the screen 14 of the first terminal 10 are interconnected by a bus 15.

It is noted that "storage means" means, for example, a hard disk, an SD card, a micro-SIM, etc.

In addition, with reference to FIG. 1, the storage means 12 of the first terminal 10 comprise:

 a first zone 12.1 storing at least one piece of information and at least one comment contained in at least one slide,

 a second zone 12.2 storing instruction codes for implementing the method PRC1 for generating an FLV video stream according to the invention. It is recalled that when an action is taken to a device it is in fact carried out by a microprocessor of the device controlled by instruction codes recorded in storage means of the device. In addition, if an action is taken to an application, it is actually performed by a microprocessor of the device in a memory of which the instruction codes corresponding to the application are recorded. When a device, or an application sends a message, this message is sent via a communication interface of said device or of said application.

FIG. 2 represents steps of the method PRC1 for generating an FLV video stream from a DIAP slide. In addition, FIG. 3 is a diagram illustrating the generation of the FLV video stream from a DIAP slide according to a first embodiment of the invention. In the following description, Figures 2 and 3 will be described together for a better understanding of the invention.

According to a first step 100, a DIAP slide is provided to the first terminal 10. By "slide" is meant a digital document comprising the minus two areas: an area in which it is possible to display an image, text or sound and a text area. By "supply of a slide to the first terminal" means the reception, via the communication interface 13 of the first terminal 10, of a digital file comprising at least one DIAP slide and the storage of said digital file in the first zone. 12.2 storage means 12. According to another embodiment, the digital file is created by means of the first terminal 10 and then stored in the storage means 12 of the first terminal 10.

With reference to FIG. 3, the slide DIAP includes a ZINF information zone including INF information intended to be displayed during the reading of the FLV video stream. According to a first embodiment, the information INF is a text. According to a second embodiment, the information INF is an image. In addition, the DIAP slide has a ZCOM comment area that includes a COM comment. The comment COM is a text that includes a description of the INF information.

According to a second step 101, INF information to be integrated in the FLV video stream is identified on the ZINF information area of the DIAP slide. According to one embodiment, the INF information to be integrated is identified in the ZINF information zone by means of a selection by an operator of said INF information to be integrated.

According to a third step 102, the information to integrate INF, identified in the second step 101, is associated with a comment COM of the ZCOM comment area. According to one embodiment, the association of the information INF to be integrated in the comment COM is carried out by means of a marking of the comment COM.

In a fourth step 103, a conversion value is entered by the operator. According to one embodiment, the conversion value is a speech rate or oral rate. According to a non-limiting embodiment, the speech rate is expressed by a number of words per unit of time (minutes, seconds). According to one nonlimiting embodiment, the conversion value is equal to 200 words per minutes.

According to a fifth step 104, the conversion value, entered in the fourth step 103, is associated with the comment COM, associated with the information INF in the third step 102, to determine an animation duration dAN of the information INF to integrate identified. The animation duration dAN corresponds to the duration during which the information INF will be displayed during the reading of the video stream FLV. For example, when the comment COM has 600 words and the conversion value is equal to 200 words per minute, the animation duration dAN of the information INF calculated by the microprocessor 11 of the first terminal 10 is 3 minutes.

According to a sixth step 105, an FLV video stream is generated. The video stream FLV comprises the information INF animated according to the animation duration dNA determined in the fifth step 104. By "generated video stream" is meant a succession of images containing the information INF that takes place in time either in the duration of dNA animation.

FIG. 4 is a diagram illustrating the generation of an FLV video stream from a DIAP slide according to a second embodiment of the invention. In the remainder of the description, FIGS. 2 and 4 will be described together for a better understanding of the invention.

In the same way as for the method PRC1 for generating an FLV video stream according to the first embodiment, a DIAP slide is supplied to the first terminal 10 in the first step 100.

According to the second embodiment represented in FIG. 4, the slide DIAP comprises a zone of information ZINF including a first information INF1, a second information INF2 and a third information INF3 intended to be displayed during different durations during the reading of the FLV video stream. According to a first embodiment, the first information INF1 and / or the second information INF2 and / or the third information INF3 is a text. According to a second embodiment, the first information INF1 and / or the second information INF2 and / or the third information INF3 is an image.

In addition, in the second embodiment, the DIAP slide has a ZCOM comment area including a first comment COM1, a second comment COM2 and a third comment COM3. The first comment COM1, the second comment COM2 and the third comment COM3 is a text.

Note that the first comment COM1 is linked to the first information INF1. According to one embodiment, the first comment COM1 is a text including a description of the first information INF1. The second comment COM2 is related to the second information INF2. According to one embodiment, the second comment COM2 is a text including a description of the second information INF2. Finally, the third comment COM3 is linked to the third information INF3. According to one embodiment, the third comment COM3 is a text including a description of the third information INF3.

In the second embodiment, the second step 101 comprises sub-steps:

 a first sub-step 101.1 in which the first information INF1 to be integrated into the video stream FLV is identified on the ZINF information zone of the slide DIAP.

 a second sub-step 101.2 in which the second information INF2 to be integrated into the video stream FLV is identified on the ZINF information zone of the slide DIAP.

 a third sub-step 101.3 in which the third information INF3 to be integrated into the video stream FLV is identified on the ZINF information zone of the slide DIAP.

In the second embodiment, the third step 102 includes sub-steps:

a fourth sub-step 102.1 in which the first information INF1 to be integrated, identified in the first sub-step 101 .1, is associated with the first comment COM1 of the ZCOM comment area. According to one embodiment, the association of the first information INF1 to be integrated in the first comment COM1 is carried out by means of a marking of the first comment COM1.

 a fifth substep 102.2 in which the second information

INF2 to be integrated, identified in the second sub-step 101 .2, is associated with the second comment COM2 of the ZCOM comment area. According to one embodiment, the association of the second information INF2 to be integrated in the second comment COM2 is carried out by means of a marking of the second comment COM2.

 a sixth substep 102.2 in which the third information INF3 to be integrated, identified in the third substep 101 .3, is associated with the third comment COM3 of the comment field ZCOM. According to one embodiment, the association of the third information INF3 to be integrated in the third comment COM3 is carried out by means of a marking of the third comment COM3.

In the second embodiment and in the same manner as in the first embodiment, in the fourth step 103, a conversion value is entered by the operator.

According to one embodiment, the conversion value is a speech rate or oral rate. According to one embodiment, the speech rate is a number of words per unit of time (minutes, seconds). According to one embodiment, the conversion value is equal to 200 words per minute.

In the second embodiment, the fifth step 104 comprises substeps:

a seventh substep 104.1 in which the conversion value, entered in the fourth step 103, is associated with the first comment COM1 to determine a first animation duration dAN1 of the first information INF1. The first animation duration dAN1 is the duration during which the first information INF1 will be displayed during the playback of the FLV video stream. an eighth substep 104.2 in which the conversion value, entered in the fourth step 103, is associated with the second comment COM2 to determine a second animation duration dAN2 of the second information INF2. The second animation duration dAN2 is the duration during which the second information INF2 will be displayed during the playback of the FLV video stream.

 a ninth substep 104.3 in which the conversion value, entered in the fourth step 103, is associated with the third comment COM3 to determine a third animation duration dAN3 of the third information INF3. The third animation duration dAN3 is the duration during which the third information INF3 will be displayed during the playback of the FLV video stream.

In the second embodiment and in the same manner as in the first embodiment, in a sixth step 105, an FLV video stream is generated. The FLV video stream comprises:

 the first information INF1 animated according to the first animation duration dNA1 calculated in the seventh substep 104.1,

 the second information INF2 animated according to the second animation duration dNA2 calculated in the eighth substep 104.2,

 the third information INF3 animated according to the third animation duration dNA3 calculated in the ninth substep 104.3.

By "generated video stream" is meant a succession of images containing the first information INF1, the second information INF2 and the third information INF3 which takes place, respectively, in the first animation duration dAN1, in the second duration of animation dAN2 and in the third animation time dAN3.

According to one embodiment, in a seventh step 106, a sequence of information INF1, INF2 and INF3 is entered by the operator. In other words, the operator chooses in which order said information INF1, INF2 and INF3 will be displayed relative to each other during the playback of the FLV video stream. For example, in the embodiment shown in FIG. 4, during the reading of the video stream FLV, at a first instant t _n , the first information INF1 is displayed during the first animation duration dNA1. After said first animation duration dNA1, at a second time t _{n +} i, the second information INF2 is displayed during the second animation period dNA2. After the second animation duration dNA2, at a third time t _{n + 2} , the third information INF3 is displayed during the third animation duration dNA3. In addition, an operator may choose to remove the first information INF1, the second information INF2 and the third information INF3 after, respectively, the first animation duration dNA1, the second animation duration dNA2, the third animation duration dNA3 so that only one piece of information at a time is displayed when playing the FLV video stream.

According to a second aspect, the invention relates to a method PRC2 for generating a plurality of video streams from a plurality of slides.

FIG. 5 represents the steps of the method PRC2, according to one embodiment, of generating a first video stream FLV1 and a second video stream FLV2 from, respectively, a first slide DIAP1 and a second slide. DIAP2. FIG. 6 illustrates the generation of the first FLV1 video stream from the first slide DIAP1 and the generation of the second video stream FLV2 from the second slide DIAP2.

It will be noted that the first video stream FLV1 and the second video stream FLV2 are generated according to the method PRC1 for generating an FLV video stream described above with reference to FIGS. 2, 3 and 4.

Thus, the generation of the first FLV1 video stream comprises the following steps:

 a first step 100 of providing a first slide DIAP1,

a second step 101 for identifying an information INF to be integrated in a first video stream FLV1,

 a third step 102 of association of the information to integrate INF with a comment COM,

 a fourth step 103 of entering a conversion value,

a fifth step 104 for associating the conversion value with the comment COM to determine a duration of animation dNA, of the information INF, a sixth step 105 for generating the first video stream FLV1 comprising the information INF animated according to the animation duration dNA.

In the same way, the generation of the second FLV2 video stream comprises the following steps:

 a first step 100 'of supplying the second slide DIAP2,

a second step 101 'of identifying an information INF' to be integrated in the second video stream FLV2,

 a third step 102 'of association of the information INF' to be integrated in a comment COM ',

 a fourth step 103 'of entering a conversion value,

 a fifth step 104 'of association of the conversion value with the comment COM' to determine a duration of animation dNA 'of the information INF',

 a sixth step 105 'for generating the second video stream FLV2 comprising the information INF' animated according to the animation duration dNA '.

In addition, the method PRC2 for generating a plurality of video streams FLV1 and FLV2 from a plurality of slides DIAP1 and DIAP2 comprises, for each video stream FLV1 and FLV2 generated, additional steps shown in FIG.

According to eighth steps 107 and 107 ', a slide among the plurality of slides is identified.

In the case of the first video stream FLV1, it is the first slide DIAP1 which is identified in the eighth step 107.

In the case of the second video stream FLV2, it is the second slide DIAP which is identified in the eighth step 107 '. In ninth steps 108 and 108 ', the slides, identified in the eighth steps 107 and 107', are associated with one of the plurality of video streams. The association of each slide to a video stream allows, during editing, to know the information contained in each video stream and thus simplify the organization of said video streams in the editing window.

In the case of the first video stream FLV1, the first slide DIAP1 is associated with the first video stream FLV1 in the ninth step 108.

In the case of the second video stream FLV2, the second slide DIAP2 is associated with the second video stream FLV2 in the ninth step 108 '. According to a third aspect, the invention relates to a method PRC3 for generating an FLM multimedia stream. By "multimedia flow" means the generation of a content comprising at least one video stream and at least one audio stream. We recall that "video stream" means a succession of images that takes place in time. In addition, "audio stream" means a succession of sounds that takes place over time.

The generation of the multimedia flow FLM is carried out, according to one embodiment, by means of an IFR infrastructure represented in FIG. 7. It is noted that according to another embodiment, the generation of the multimedia flow FLM is implemented by the first terminal 10 described above.

With reference to FIG. 7, the IFR infrastructure notably comprises:

 the first terminal 10 presented in FIG. 1 and described previously,

 a second terminal 20.

Whether it is a computer, a mobile phone, a tablet or a connected object, the second terminal 20 comprises:

 a microprocessor 21,

 storage means 22,

 a communication interface 23,

- a screen 24. The microprocessor 21 of the second terminal 20, the storage means 22 of the second terminal 20, the communication interface 23 of the second terminal 20 and the screen 24 of the second terminal 20 are interconnected by a bus 25.

In addition, with reference to FIG. 7, the storage means 22 of the second terminal 20 comprise:

 a first zone 22.1 storing an audio stream and / or a CPV video clip,

a second zone 22.2 storing instruction codes for implementing the PRC3 method for generating an FLM multimedia stream according to the invention.

In addition, according to one embodiment, the first terminal 10 and the second terminal 20 communicate by a network 40, for example an Internet network.

FIG. 8 represents steps of the method PRC3 for generating an FLM multimedia stream.

According to a tenth step 109, an FLV video stream generated by the method PRC1 for generating an FLV video stream is supplied to the second terminal 20. The video stream FLV is provided by the first terminal 10 which communicates with the second terminal 20 by the In another embodiment, a plurality of video streams generated by the PRC2 method of generating a plurality of video streams is provided to the second terminal 20. The plurality of video streams FLV1 and FLV2 is provided by the first terminal 10 which communicates with the second terminal 20 via the network 40.

According to an eleventh step 1 10, a COM comment is recorded as an audio stream or a CPV video clip.

In the case of the comment COM recorded in the form of an audio stream, it is a recording of the voice of a comedian for example who reads the COM commentary aloud. According to one embodiment, the recording of the comment COM is performed by a sound recording means such as a microphone by example. According to one embodiment, the sound recording means communicates with the second terminal 20.

In the case of the comment recorded in the form of a CPV video clip, it is a video recording of a comedian for example who reads aloud and stages the COM commentary. We note that "video clip" means audiovisual content. In addition, it is noted that according to one embodiment, the actor is filmed in front of a green background / blue background. Indeed, the green background will then be substituted for any fixed or moving image. According to one embodiment, the video recording of the comment COM is performed by a video recording means such as a camera for example. According to one embodiment, the video recording means communicates with the second terminal 20. According to a twelfth step 1 1 1, an FLM multimedia stream is generated, said FLM multimedia stream comprising:

 the FLV video stream provided in the tenth step 109,

 the audio stream or the CPV video clip recorded in the eleventh step 1. FIG. 9 illustrates the generation of a video including at least one comment COM, called VCOM commentary video. The VCOM commentary video serves as a reading medium for the actor to record the comment (s) in the form of an audio stream or a CPV video clip. According to a thirteenth step 1 12, a video comment VCOM is generated.

According to one embodiment, the comment video VCOM comprises an animated comment COM according to the animation duration dNA determined during the fifth step 104. According to another embodiment, the generated comment video VCOM comprises a plurality of comments COM1 , COM2, COM3 animated according to a plurality of animation durations dNA1, dNA2, dNA3 determined during the sub-steps 104.1, 104.2 and 104.3 of the fifth step 104. In addition, according to one embodiment, each comment COM1, COM2 and COM3 presents a marking to indicate to the comedian for example the passage of a comment to another comment.

In addition, according to one embodiment, in a fourteenth step 1 13, a sequence of comments COM1, COM2 and COM3 is entered by the operator. In other words, the operator chooses in what order the comments COM1, COM2, COM2 will be displayed when playing the VCOM comment video.

According to one embodiment, the VCOM comment video generated is transmitted to a third terminal 30. The third terminal 30 then serves as a prompter to the actor who reads aloud or stages the comment (s) for the recording. audio stream or CPV video clip.

With reference to FIG. 7, the third terminal 30 communicates with the first terminal 10 and the second terminal 20 via a network 40, for example the Internet network.

Whether it is a computer, a mobile phone, a tablet or a connected object, the third terminal 30 comprises:

 a microprocessor 31,

 storage means 32,

 a communication interface 33,

 - a screen 34.

The microprocessor 31 of the third terminal 30, the storage means 32 of the third terminal 30, the communication interface 33 of the third terminal 30 and the screen 34 of the third terminal 30 are interconnected by a bus 35.

In addition, with reference to FIG. 7, the storage means 32 of the third terminal 30 comprise:

 a first zone 32.1 storing at least one VCOM video comprising at least one comment COM,

a second zone 32.2 storing instruction codes for displaying the VCOM video comprising said at least one comment COM. According to the embodiment shown in FIG. 9, during the playback of the video of comments VCOM having the comments COM1, COM2 and COM3, all of said comments COM1, COM2 and COM3 are displayed on the screen 34 of the third terminal 30 at a first instant t _n . From the first moment t _n comments COM1, COM2, COM3 will scroll. Thus, the first comment COM1 will scroll during the first animation time dNA1 until disappearing from the screen 34 at a second time t _{n +} i. The second comment COM2 then scrolls during the second animation duration dNA2 until disappearing at a third instant t _{n +} 2- Finally, the third comment COM3 scrolls during the third animation duration dNA3 until disappearing at a fourth instant t _{n +} 3-

FIG. 10 illustrates the generation of the FLM multimedia stream comprising:

 - the comment COM recorded in the form of a video clip CPV,

an FLV video stream. Thus, for example between a first instant t _n and a second instant t _{n +} i _, the generated multimedia stream FLM comprises:

 an extract of the video clip CPV in which an actor reads aloud, using the third terminal 30, the first comment COM1 and,

 an extract of the FLV video stream in which the first information INF1 is animated according to the first animation duration dNA1. According to one embodiment, the third terminal 30 is a tablet.

In the same way, between the second instant t _{n +} i and the third instant (not shown in FIG. 10), the generated FLM multimedia stream comprises:

 an extract of the video clip CPV in which an actor reads aloud, using the third terminal 30, the second comment COM2 and,

 an extract of the video stream FLV in which the second information INF2 is animated according to the second animation duration dNA2.

Finally, between the third instant t _{n +} 2 and the fourth instant t _{n +} 3 (not shown in FIG. 10), the generated FLM multimedia stream comprises:

an extract of the video clip CPV in which an actor reads aloud, using the third terminal 30, the third comment COM3 and, an extract of the video stream FLV in which the third information INF3 is animated according to the third animation duration dNA3.

Thanks to the method according to the invention, when the video stream FLV is superimposed on the video clip CPV, all the extracts of the video clip CPV and all the extracts of the video stream FLV will be already synchronized which makes it possible to get rid of the work of cutting and sequence organization during video editing usually performed in the prior art. In addition, according to one embodiment, the tenth step 109 comprises sub-steps:

 a tenth sub-step 109.1 in which a first position corresponding to a first display area of the video stream FLV in the display area of the multimedia stream FLM is entered by the operator. The first position corresponding to the first display area is chosen so that it only appears on part of the display area of the FLM multimedia stream and the actor is not placed in front of said first area of the display area. display when playing the FLM media stream. Indeed, the FLV video stream must be visible to the viewer so that said FLV video stream serves as reading support for the viewer when playing the FLM multimedia stream.

an eleventh substep 109.2 in which the first position entered in the tenth substep 109.1 is associated with the video stream FLV for displaying the video stream FLV according to the first display area during the playback of the multimedia stream FLM.

In addition, according to one embodiment, the tenth step 109 has additional sub-steps:

 a twelfth sub-step 109.3 in which a second position corresponding to a second display area of the video stream FLV in the display area of the multimedia stream FLM is entered by the operator.

a thirteenth sub-step 109.4 in which a final sequence in the FLV video stream is identified. a fourteenth substep 109.5 in which said final sequence is associated with said second position corresponding to a second display area of the video stream FLV for displaying the final sequence of the video stream FLV in the second display area.

According to one embodiment, the second display area has the same dimensions as the display area of the FLM multimedia stream. In other words, the final sequence of the video stream is configured to display in close-up when playing the FLM media stream.

FIG. 11 represents steps of a graph generation method PRC4 making it possible to determine one or more training modules according to the profile of an operator. Indeed, according to one embodiment, the FLM multimedia stream generated by the PRC3 method for generating an FLM multimedia stream contains information adapted to train individuals, for example the employees of an enterprise. In this case, an FLM multimedia stream is generated per training module.

To train employees, one or more training modules is / are identified according to the profile of the employee so that each employee has his own training course.

The determination of the training module (s) to be followed by each employee, called operator in the following description, is implemented by a fourth terminal (not shown), for example, a computer, a tablet etc. The fourth terminal comprises a microprocessor, storage means, a communication interface and a screen.

In an SA_COMP skill entry step, an operator enters the skill (s) required for a given trade. According to another embodiment, a list of skills is recorded in the storage means of the fourth terminal and the operator only has to select the skills displayed on the screen of said fourth terminal. For example, taking the example of an employee with a manager position. The competencies entered by the operator can be as follows: promote the development of employees; coach men; promote transversality and co-production; support change ; give meaning to the action.

In addition, according to one embodiment, for each skill entered or selected, one or more training module (s) is displayed on the screen of the fourth terminal. According to one embodiment, a list of training modules is recorded in the storage means of the fourth terminal, one or more training module (s) being associated (s) with a skill.

For example, always taking the example of the employee with a manager position, for the skill "make sense", training modules associated with such a skill are for example: make sense, set goals / strategy, courage managerial.

In a step of entering SA_REP responses to a questionnaire, the operator responds to a list of questions displayed on the screen of the fourth terminal. According to one embodiment, the questions relate to knowledge, know-how and / or know-how. In addition, according to one embodiment, the input of the responses by the operator is performed by selecting one of a plurality of responses proposed for each question. According to one embodiment, the questions and the answers proposed for each question are recorded in the storage means of the fourth terminal.

The answers to the questionnaire make it possible to determine the training module (s) that the operator should follow more particularly. Indeed, according to one embodiment, each response is associated with a number of points. Depending on the number of points obtained for each question, a number of points per training module is awarded.

In a step of generating a GEN_GRAP graph, a graph illustrating the number of points obtained for each training module is generated. According to one embodiment, the generated graph is displayed on the screen of the fourth terminal. Thus, according to one embodiment, the more the number of points obtained increases the more the operator is competent and the less it is necessary to follow the training module of the plurality of training modules displayed on the graph. On the other hand, when the number of points decreases, the less the operator is competent and the more it is necessary to follow the training module of the plurality of training modules displayed on the graph.

Claims

A method (PRC1) for generating a video stream (FLV) from a slide (DIAP), said method (PRC1) being characterized in that it comprises the following steps:  providing (100) a slide (DIAP) comprising:  A zone, called information zone (ZINF), including at least one information (INF) intended to be displayed and,  • a zone, called comment zone (ZCOM), including at least one comment (COM);  identifying (101), on the information zone (ZINF), information (INF) to be integrated in the video stream (FLV);  association (102) of the information (INF) to be integrated into a comment (COM) of the comment area (ZCOM);  entering (103) a conversion value;  associating (104) the conversion value with the comment (COM) to determine an animation duration (dNA) of the information (INF) to be integrated;  generation (105) of a video stream (FLV) comprising the information (INF) to be integrated animated according to the animation duration (dNA). Method (PRC1) for generating a video stream (FLV) according to Claim 1, characterized in that the information (INF) to be integrated is a text or an image. Method (PRC1) for generating a video stream (FLV) according to any one of Claims 1 to 2, characterized in that the step of association (104) of the information (INF) to be integrated in a comment ( COM) is carried out by means of a marking of the comment (COM), said marking indicating that said comment (COM) is associated with the identified information (INF) to be integrated. A method (PRC1) for generating a video stream (FLV) according to any one of claims 1 to 3, characterized in that the conversion value is expressed as a number of words per unit of time. A method (PRC2) for generating a plurality of video streams (FLV1, FLV2) from a plurality of slides (DIAP1, DIAP2), each video stream (FLV1, FLV2) being generated from a slide (DIAP1 , DIAP2) by the method (PROC1) according to claims 1 to 4, said method (PRC2) being characterized in that it comprises the following steps:  identifying (107, 107 ') a slide among the plurality of slides;  associating (108, 108 ') said slide to a video stream among the plurality of video streams. A method (PRC3) for generating a multimedia stream (FLM), characterized in that it comprises the following steps:  providing (109) at least one video stream (FLV) generated by the method (PRC1) according to claims 1 to 4;  recording (1 10) a comment (COM) in the form of an audio stream or a video clip (CPV);  generating (1 1 1) a media stream (FLM) comprising the provided video stream (FLV) and the comment (COM) recorded as an audio stream or a video clip (CPV). A method (PRC3) for generating a multimedia stream (FLM) according to claim 6, characterized in that it comprises the following steps: entering a first position (109.1) corresponding to a first display area of the video stream in the display area of the multimedia feed (FLM); associating (109.2) the first position corresponding to the video stream (FLV). 8. A method (PRC3) for generating a multimedia stream (FLM) according to any one of claims 6 to 7, characterized in that it comprises the following steps:  entering (109.3) a second position corresponding to a second video stream display area (FLV) in the media stream display area (FLM);  identifying (109.4) a final sequence in the video stream (FLV);  associating (109.5) said final sequence with said second position.