94results about How to "Guaranteed playback effect" patented technology

The invention discloses a bullet screen display method, comprising the steps of determining a core area of a video image; judging whether bullet screen information enters the core area or not; and fading a display effect of the bullet screen information entering the core area if the bullet screen information enters the core area. According to the bullet screen display method, under the condition that a user still can use the bullet screens, the core area is prevented from being shielded by bullet screens, the content and the playing continuity of the video bullet screens are not broken, the playing effect of the bullet screens is maintained, moreover, the watching experience of the user is not influenced, and the practical value of the bullet screens is improved. The invention also discloses a bullet screen display device and a terminal which have the same beneficial effects.

The invention discloses an audio and video network playing method and device and an electronic device. The method comprises the steps of receiving the audio data and video data; determining an audio playing mode according to the receiving conditions of the audio data and the video data; decoding the audio data and the video data to generate to-be-played audio data and video frames; and playing theto-be-played audio data according to the determined audio playing mode, and synchronously rendering the video frames by adopting an audio and video synchronization mechanism. According to the method,the playing delay caused by accumulation of audio and video data is offset through accelerated playing consumption cache of the audio and video; according to the audio and video playing method and device, the audio and video playing lagging caused by network jitter is avoided through the deceleration playing and the deceleration consumption caching of the audio and video, and the playing effect of the audio and video is guaranteed to the maximum extent while the network jitter resistance is improved and the playing delay is solved.

The invention provides a dynamic flow control method of a streaming media server for ensuring audio / video quality, which comprises the following steps of: (1), dividing a sending stream document into a group of slices and establishing index information for the slices before the sending stream document is played; (2), figuring out an average code rate according to the index information, and recording or setting a group boundary, wherein all frames in a frame group are sent with reference to the average code rate; (3), sending a transport stream packet, and recording to the length of the maximum packet, and obtaining the time interval of the maximum packet by dividing the length of the maximum packet by the average code rate; (4) initially playing one packet, determining a relative time forthe next packet to be sent according to the time interval of the maximum packet, calculating an absolute time point for the next packet to be sent, and judging whether the current time exceeds the relative time; (5), reaching the end of a frame to complete the sending of one packet; and (6) recalculating the average code rate and entering the next circulation when a played frame reaches the groupboundary. When the method is adopted, the problem of packet loss can be solved, the impact on a router can be reduced, the play speed and play effect can be ensured, and the play quality can be improved.

The invention discloses a video recording method, a computer readable storage medium and a recording-playing system. The video recording method comprises the steps of receiving video operation information sent by an application operation scheduling device, wherein the video operation information includes operation actions, operation time and operation video information; according to the operationvideo information, acquiring a corresponding target video stream from a preset data source; and sequentially analyzing the operation actions according to the operation time, forming node information files according to analytical results, and storing a node information file of each operation action and a corresponding target video stream to a corresponding video recording file package. According tothe video recording method, the computer readable storage medium and the recording-playing system, by recording operations on a video in a video recording process, the recording process can be restored authentically and perfectly; and moreover, an original definition can be perfectly restored, and a playback effect is guaranteed.

The invention discloses a digital film projection device. The digital film projection device comprises a base. The top of the base is rotationally connected with a device box through a stand column. One side of the stand column is fixedly connected with a fixed block. The fixed block is slidably provided with an inserting rod in an inserted mode. A plurality of inserting grooves corresponding to the inserting rod are formed in the top of the base in a surrounding mode. A fixed rod is fixedly connected with the end, away from the base, of the inserting rod. The end, away from the inserting rod,of the fixed rod is connected with the fixed block through a telescopic rod. A first spring is arranged on the telescopic rod in a sleeving mode. The two ends of the first spring are fixedly connected with the fixed rod and the fixed block correspondingly. The device box is internally and rotationally connected with a threaded rod. The threaded rod is fixedly connected with a first gear in a sleeved mode. The device box is internally provided with a second gear meshing with the first gear. According to the digital film projection device, through the arrangement of multiple adjusting mechanisms, the projection device can be adjusted freely according to an actual projection site, so that the playback effect of a digital film is ensured, and the viewing experience of people is enhanced.

The invention relates to a flow media bandwidth adapting system, which comprises flow server, media provider, and mobile device, wherein the flow server comprises server flow protocol module, bandwidth analyzing module, bandwidth selecting module, document analyzing module and media sending module; the mobile device comprises terminal flow protocol module, wireless module, bandwidth detecting module, buffer module and play module; the mobile device via wireless module and bandwidth detecting module timely reports received bandwidth state and media receiving state to the server flow protocol module; the server flow protocol module sends said information to the bandwidth analyzing module to find the media bandwidth and sending speed, to be sent by the media sending module. The invention can automatically adjust the sending speed and code bandwidth of media document via the network state and media receiving state, to improve relative play effect.

The invention relates to a flow media server with bandwidth adaptive function, wherein it comprises server flow protocol module, bandwidth analyzing module, bandwidth selecting module, document analyzing module, and media sending module. The mobile device timely reports received bandwidth state and media receiving state to the flow protocol module; the flow protocol module sends said information to the bandwidth analyzing module and finds the media bandwidth and sending speed, the media sending module sends it. The invention can automatically adjust the sending speed and code bandwidth of media document via the network state and media receiving state, to improve relative play effect.

The invention discloses a video detection method and device, terminal equipment and a storage medium. The method comprises the following steps: obtaining audio data and video image data in a to-be-detected video; extracting audio features corresponding to the audio data, and extracting image features corresponding to the video image data; obtaining original audio features corresponding to the audio data and original image features corresponding to the video image data, wherein the original audio features and the original image features are pre-extracted audio features and image features of theto-be-detected video before the to-be-detected video is sent to the terminal device; respectively comparing the audio features with the original audio features, and comparing the image features withthe original image features; According to the first comparison result corresponding to the audio feature and the second comparison result corresponding to the image feature, determining a synchronization result of the audio data and the video image data in the to-be-detected video, the synchronization result comprising synchronization or non-synchronization of the audio data and the video image data. According to the invention, audio-video synchronous detection of the video can be realized.

The invention provides an audio playing method and device, playing equipment and a storage medium, and belongs to the technical field of electronics. The method comprises the following steps: detecting the number of audio sampling points in a cache region; when the detected first number does not belong to a preset number range, adjusting a preset first frequency division parameter to obtain a second frequency division parameter; and generating a second sampling frequency based on the second frequency division parameter, and extracting the audio sampling point from the cache region according tothe second sampling frequency to play. According to the invention, when the electronic equipment and the playing equipment are not synchronous, the frequency division parameter can be adjusted to adjust the sampling frequency of the playing equipment, and the difference between the sampling frequency of the playing equipment and the first sampling frequency of the electronic equipment is reduced,so that the playing equipment and the electronic equipment tend to be synchronous, and the playing effect of the audio data is not influenced.

The invention provides a media data buffering method, a media data buffering device and an intelligent television. The media data buffering method of the present invention includes obtaining first playing time information and second playing time information, the first playing time information is used to indicate the playing time point corresponding to the currently decoded media data, and the second playing time information It is used to indicate the playback time point corresponding to the media data that has just entered the data buffer; obtain the playable time of the media data buffered in the data buffer according to the first playback time information and the second playback time information; Control the media playing and buffering process according to the playable time. The invention can perform media buffering and playing according to the playable time of the media data buffered in the data buffer.

The invention provides a voice conversion method and device, an electronic device and a storage medium, and belongs to the field of artificial intelligence. The method comprises the following steps of: multiple pieces of sample information are acquired, each piece of sample information comprises sample text information, sample voice information and a sample user identifier, the sample user identifiers are used for indicating users sending the sample voice information according to the sample text information, and the sample user identifiers included in the multiple pieces of sample informationare not completely the same; a voice conversion model is trained according to the plurality of pieces of sample information; target text information and a target user identifier are obtained; and thevoice conversion model is called, and the target text information is converted according to the target user identifier to obtain target voice information matched with the tone of the target user. According to the method, the multi-tone function of the voice conversion model can be realized, and the intelligent degree is high.

The invention relates to a mobile terminal with flow media bandwidth adaptive function, wherein it comprises that: terminal flow protocol module, wireless module, bandwidth detecting module, buffer module, and play module; the mobile terminal via wireless module and bandwidth detecting module timely reports the bandwidth state and media receiving state to the flow server; the flow server via received information sets transmitted media bandwidth and sending speed. The invention can receive and play flow media, to automatically adjust the sending speed and coding bandwidth to improve the play effect, via the network state and receiving state.

The invention discloses a video coding stream control method facing network live broadcast. The video coding stream control method includes the steps that parameters are set at a broadcast end; a time length for receiving video data of an initial buffering zone of the broadcast end is preset to be M, and the lowest receiving bandwidth of the broadcast end is preset to be W; initial coding is performed; after live broadcast coding is started, an analog buffering zone is set according to the preset M and the preset W; coding is performed, wherein in the coding process, the data size of a frame undergoing coding and the data size of a frame to be coded are periodically predicated; the state of a video sequence in the analog buffering zone is calculated, a quantization coefficient is adjusted so that the data volume of the video sequence in the analog buffering zone cannot be empty, and subsequent coding is continuously performed; coding data are distributed; when the coding step is executed, the coding data are directly or indirectly distributed to the broadcast end at the same time; video playing is performed; a decoder is arranged at the broadcast end, live broadcast begins to be received at any time point, when the volume of the received data reaches the time length M, a video starts to be played, and meanwhile a bandwidth receiving live broadcast streams and arranged at the broadcast end is no lower than W.

The invention discloses a method for encoding and decoding a video, a system and a video monitoring system. The method comprises the following steps: decomposing a continuous video into at least one frame segment by an encoding end, and extracting data frames from the frame segment to form a sub-code stream group according to a time sequence; encoding a first frame of the sub-code stream group in an I-frame mode; forming a code stream group by using the encoded sub-code stream group according to the time sequence; and acquiring the code stream group by an decoding end, and sequentially decoding the data frames contained in the code stream group. The method for encoding and decoding the video, the system and the video monitoring system are suitable for various network environments and equipment characteristics, and significantly improve the video playing effect.

The invention discloses an elevator intelligent perspective projection device, comprising: an intelligent projector, a holographic projection film, and a processing terminal. The holographic projection film is pasted on the outer door of the elevator, and the projection port of the intelligent projector corresponds to the position of the projection film. Enables the projection to be projected on the projection film; the processing terminal located on the elevator car includes: a processor, which is respectively connected to a sensing system, a power amplifier device, a camera, a storage system, and a communication module, and is connected to an intelligent projector through a communication network , The sensing system includes: audio acquisition sensor, acceleration sensor, state sensor, video sensor.

The invention relates to a method for hiding a transmission error of eight-viewpoint free three-dimensional video, and the method provided by the invention comprises: informing an adjacent terminal of the uploading capability of each terminal at a time interval by each terminal; acquiring the adjacent terminal which owns a requested resource by a video requesting terminal through an information list of a server and acquiring the information of the terminal with high uploading capability; according to the uploading capability, and respectively receiving each viewpoint data and redundancy key data; using the terminal with high uploading capability to transmit more viewpoint data and redundancy key data; at a data sending end, performing the information source compression coding and channel error correction coding on the viewpoint data and redundancy key data which are to be sent, and then transmitting; and at the video requesting terminal, verifying the video data through the redundancy key data and hiding the error. By using the method to transmit the three-dimensional video, the use ratio of bandwidth can be efficiently increased and the deletion of video stereoscopic sense caused by abrupt error codes can be efficiently reduced.

The invention discloses a subtitle display method and device, and belongs to the technical field of data processing. The method comprises the following steps: in a video playing process, when triggering of a target event is detected, acquiring a current playing size of a video, wherein the target event is an event used for displaying external subtitles of the video, and the playing size is a size used for playing a playing area of the video; determining a display size of the external subtitles based on the current playing size of the video, wherein the display size is a size for displaying the display area of the external subtitles in the play area; and displaying the external subtitles in the display area with the display size. The display size of the external subtitles is relatively matched with the current playing size of the video, so that the playing effect of the video is ensured. Moreover, the display size of the external subtitles is determined based on the current playing size of the video, so that the display flexibility of the subtitles can be improved.

The invention relates to a screen advertisement playing method and system. The method comprises the following steps: dividing advertisements into advertisement types according to priorities and storing the advertisement types; setting an advertisement playing period and a playing time unit, and obtaining a preset advertisement playing amount in an advertisement playing time period; in the first advertisement playing period, playing different types of advertisements according to the playing weight, and performing periodic playing; the advertisement playing condition of the advertisement screen end is reported in real time, and an advertisement playing report is automatically generated; and adjusting to play different types of advertisements according to the advertisement playing report and the preset advertisement playing amount. According to the invention, the problem that the playing times of different advertisement materials cannot be accurately measured and calculated and the playing amount cannot be flexibly adjusted can be effectively solved, the poor putting effect caused by dense playing time of a single advertisement is prevented, meanwhile, the advertisement playing condition of the screen end can be tracked, and timely remedy is carried out when an abnormality occurs.

Embodiments of the invention provide a terminal control method and a terminal control device. The method comprises the steps as follows: acquiring current biological fixation information when a user terminal is in a playing state, wherein the biological fixation information includes biological characteristic information and the duration of the biological characteristic information; judging whether the biological fixation information satisfies preset control closing information according to the biological characteristic information and the duration of the biological characteristic information; and if the biological fixation information satisfies the preset control closing information, sending a closing instruction to a control module associated with the user terminal to disable the terminal control function of the control module. By implementing the embodiments of the invention, the control module of the user terminal can be managed actively, wrong operation or operation interfered by other users can be reduced effectively, the playing effect can be ensured, and the user terminal can be more intelligent.

The invention discloses a noise reduction earphone and a method for controlling the on / off of a noise reduction circuit. The earphone comprises a main case, a front case and the noise reduction circuit, wherein the main case, the front case and the noise reduction circuit form a main part of the earphone. The interior of an internal space S is provided with an internal partitioning wall, and the internal partitioning wall enables the internal space S to be divided into a first space S1 and a second space S2, which are independent of each other. The earphone is characterized in that the interior of the first space S1 is provided with a conversion unit which enables an audio input signal to be converted into a sound signal; the interior of the second space S2 is provided with a microphone for receiving external environment noise; a wall, corresponding to the second space S2, of the main case is provided with an adjustment hole; the adjustment hole is provided with a door which can achieve the closing of the adjustment hole; the noise reduction circuit is in a short-circuit state when the door of the adjustment hole is completely closed, thereby enabling an audio input signal not to pass through the noise reduction circuit, but to be directly fed back to the earphone.

The invention discloses a high-definition matrix capable of realizing remote synchronous transmission of multichannel high-definition videos. The high-definition matrix comprises a master control board which is connected with at least two high-definition video encoding-decoding boards; the master control board and the high-definition video encoding-decoding boards are powered by a power module; when video acquisition is performed, the at least two high-definition video encoding-decoding boards collect, compress and code audio data, video data or the audio data and the video data at the same time by an audio-video acquisition interface; and then, the compressed and coded data are transmitted to the master control board; the master control board is provided with an independent network interface; and the data are multiplexed by the master control board and repacked to send out by the independent network interface. As a mode based on an IP (Internet Protocol) network is adopted for accomplishing remote transmission of the high-definition videos, the remote transmission of high-definition video signals can be ensured without distance limitation, and the definition of the video signals and the playing effect can be ensured simultaneously; and moreover, the cost can be greatly reduced and revolutionary breakthrough can be provided in the technology.

The invention discloses a multichannel / high-fidelity visible telephone, comprising CPU, video signal processing system, and audio signal processing system. And an audio signal input unit of the audio signal processing system comprises two independent sets of audio signal collection modules, audio signal A / D conversion modules and audio signal coding modules, where each audio signal A / D conversion module makes analog-to-digital conversion on the audio signal collected by the audio signal collection module and outputs the digital audio signal to the audio signal coding module; an audio signal output unit of the audio signal processing system comprise two independent sets of audio signal decoding modules, audio signal D / A conversion modules and audio signal output modules, where each audio signal D / A conversion module makes digital-to- analog conversion on the audio signal decoded by the audio signal decoding module and outputs the analog audio signal to the audio signal output module.

The invention discloses an audio playing mode switching method and device and head-mounted equipment. The method is applied to the head-mounted equipment with earphones and loudspeakers. The method comprises the following steps of: respectively detecting the wearing states of the earphones on the left side and the right side of the head-mounted equipment; when it is detected that the earphone on one side or the earphones on the left side and the right side are worn, controlling an audio channel(s) on the same side as the worn earphone(s) to be switched into an earphone playing mode; and when it is detected that the earphone on one side or the earphones on the left side and the right side are taken off, controlling the audio channel(s) on the same side as the taken-off earphone(s) to be switched into a loudspeaker playing mode. According to the audio playing mode switching method provided by the embodiment of the invention, the audio playing mode can be automatically switched accordingto the wearing states of the earphones, the complex operation of manually switching the audio channels by a user is omitted, the continuity of sound output is maintained, meanwhile, the use requirements of users in different application scenes can also be met, and the user experience is greatly improved.

The embodiment of the invention discloses a vehicle-mounted player, and relates to the technical field of navigation. The volume of the vehicle-mounted player can be effectively adjusted under the condition that no additional device is added, and the playing effect of the vehicle-mounted player is improved, thereby improving the listening experience of a user in a vehicle. The specific scheme is that a microphone is used for detecting the current environmental noise in the vehicle; a storage module is used for storing the initial environmental noise, and storing the initial play volume set bythe user; a calculation module is used for calculating the play volume Y under the current environmental noise through employing Y=delta(step)*K+B or Y=(A-A0)*K+B; an adjustment module is used for adjusting the volume of the vehicle-mounted player to the play volume calculated by the calculation module.

The invention provides a wired signal access circuit of a digital television receiving terminal. A filtering unit is serially connected with a wired signal access unit which is externally connected with a wired network for transmitting signals in the wired network; when the wired signal access unit is externally connected with the wired network, the filtering unit isolates a wired network ground signal transmitted by the wired network access unit when the wired network ground signal is a low frequency signal, and transmits the wired signal transmitted by the wired signal access unit when the wired signal in the wired network is a high frequency signal so that the television does not access the wired network ground but accesses the commercial power supply ground so as to avoid alternating current (AC) sound. The playing effect of television output sound is guaranteed, and the safety coefficient of the television is also guaranteed.

The invention discloses a precise advertisement putting method based on vehicle information identification, which comprises the following steps that: when a vehicle passes through a camera shooting area, a camera performs front-end identification to identify vehicle information, the information specifically includes but is not limited to information such as license plates, license plate types, vehicle types, colors, brand models, values, vehicle personalized features and driver behaviors of vehicles; the camera transmits recognized information to the control communication mainboard, the control communication mainboard interacts with a cloud end, and an advertisement which is most suitable for the user is matched through a data matching algorithm; when the cloud side queries a playing demand, a playing instruction is issued to the control communication mainboard; after the communication mainboard is controlled to obtain the playing instruction, the display end plays the playing instruction; after playing is finished, the camera continues to be in the standby state to wait for the vehicle to enter the shooting area again. According to the method, the advertisement playing accuracy is improved, different advertisements represent different commodities and are suitable for different crowds, and the scheme aims at achieving the purpose that the advertisements are played in front of the specific crowds, and relatively accurate playing of offline advertisements is achieved.

The invention discloses a playing method, a device, a device and a storage medium of a song file, belonging to the computer technical field. The method comprises the following steps: obtaining the playing volume of any original song file to be played in the playing list; If the playing volume of the original song file is not within the standard volume range, the first song file with playing volumewithin the standard volume range is searched in the gallery, the first song file is replaced with the original song file, and the first song file is played; and if the playing volume of the originalsong file is not within the standard volume range, the first song file is searched in the gallery, and the first song file is played. If the first song file does not exist in the gallery, the second song file whose playing volume satisfies the playing volume condition is searched in the gallery, the second song file is replaced with the original song file, and the second song file is played. The invention can make the playing volume difference of the played song files small and the playing effect good by the method.

The invention discloses a back projection image express-delivery car advertisement player which comprises an express-delivery car, a back projection screen, a soft projection camera bellows and a projector, wherein the back projection screen is installed on the top of the express-delivery car by a base and a frame; multiple supporting mechanisms are disposed between the base and the top of the express-delivery car; a front end large hole of the soft projection camera bellows is fixed around the frame and is butt joined to the back projection screen; the rear end projection hole is fixed on a support equipped with the projector and is butt jointed with a camera lens of the projector; rotation shafts are installed on two sides of the bottom edge of the frame equipped with the back projection screen; shaft sleeves on two sides of the base are collected by the rotation shafts on the two sides; electric telescopic push rods are installed on two sides of the back face of the frame equipped with the back projection screen; the support equipped with the projector is fixed on a bracket which can be stretched, contracted and moved; and the bracket is firmly connected to the base. The device disclosed by the invention has the advantages that the structure is table; anti-vibration effects are good; advertisement playing can be controlled conveniently; and generalization is easy.

The invention discloses a video polyphonic ringtone processing method and device and a computer readable storage medium, relates to the technical field of polyphonic ringtones, and aims to solve the problem that the playing effect of a video polyphonic ringtone in a calling terminal cannot be ensured in the prior art. The method is applied to a polyphonic ringtone platform, and comprises the stepsof obtaining polyphonic ringtone files in multiple playing forms corresponding to video content under the condition of receiving the video content selected or uploaded by a user; under the conditionthat a calling request of a calling terminal is received, obtaining information, carried in the calling request, of the calling terminal, wherein the information of the calling terminal comprises at least one of equipment type information and network signal information; and according to the information of the calling terminal, determining a target polyphonic ringtone file matched with the information of the calling terminal from the polyphonic ringtone files in multiple playing forms, and playing the target polyphonic ringtone file to the calling terminal. According to the embodiment of the invention, the playing effect of the video polyphonic ringtone on the calling terminal can be ensured.