KR101729765B1 - Real time remuxing system, method for transmitting and receiving thereof - Google Patents

Abstract

A real-time remuxing system, a transmitting method and a receiving method are disclosed. Here, the real-time remodeling system includes a client device for searching for, requesting, receiving, and reproducing a moving image file, and a header stream of a moving image file having a file format recognizable by the client device, And a transmitting device for transmitting a codec stream of the moving picture file having a possible codec type to the client device,
The client device comprising:
The header stream and the codec stream are reproduced in real time and reproduced.

Description

REAL TIME REMUXING SYSTEM, METHOD FOR TRANSMITTING AND RECEIVING THEREOF,

The present invention relates to a real-time remodeling system, a transmission method, and a reception method.

Recently, the need for NAS (Network Attached Storage) and cloud services is gradually expanding due to the lack of storage space and the demand for data that can be used anywhere. Nowadays, .

As a result, there are many products supporting these services, but the service for real-time video viewing is not yet smooth, especially for high-volume video.

Conventionally, a device capable of performing real-time remuxing is hard to find, and a conversion using a file conversion tool can be performed manually on a PC, but this is also possible only in a specific format.

Currently, the transmission method through the NAS system can be divided into a method of transcoding and transmitting the format to a format supported by DLNA (Digital Living Network Alliance), a web server, and a device. Although these transmission methods are all useful, a special CPU is dedicated to transcoding, but image quality deterioration is inevitable even with this method.

In addition, even if the codec can be supported by the device, if the file format is not supported by the device, playback can not be performed and unnecessary transcoding is performed.

Here, the file format may be referred to as a container format. One video file is composed of video data and audio data. The file format or container format is a method of composing video data and audio data into one video file, and can be displayed as an extension of the file. For example, AVI, MP4, WMV and so on. At this time, the video data and the audio data are respectively generated through separate data compression techniques, and this data compression technique is called a codec. The player playing the video file must be able to recognize the file format and be provided with the encoding method of the video file, that is, the codec.

Conventionally, a transmitting side transcodes a moving picture file so that decoding can be performed on the receiving side. However, although the file format can not be recognized on the receiving side, decoding may be possible. However, if the file format can not be recognized, since the codec information of the video file can not be known, there is a problem that the transmitting side must perform transcoding even though decoding is possible on the receiving side.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a real-time remodeling system that prevents unnecessary transcoding, and a moving picture file transmitting method and a receiving method of a real-time remodeling system.

According to one aspect of the present invention, a real-time remodeling system includes a client device for searching for, requesting, receiving, and reproducing a moving image file, and a header stream of a moving image file having a file format recognizable by the client device, And a transmitter for transmitting a codec stream of the moving picture file having a codec type that can be decoded by the client device to the client device,

The client device comprising:

The header stream and the codec stream are reproduced in real time and reproduced.

The transmitting apparatus includes:

(Network Attached Storage) server or a cloud server that stores a plurality of video files having different file formats and codec types.

The transmitting apparatus includes:

A plurality of demuxers for supporting different file formats and analyzing header information of a moving picture file having a supported file format, and a file format of the moving picture file based on the analysis result of the header information, And a transmitting unit for transmitting a codec data stream having a codec type that can be decoded by the client device to the client device by converting a header stream of the moving picture file into a file format recognizable by the client device, have.

The plurality of demultiplexers

Separating the moving picture file into header information and codec data,

Wherein the transmission unit comprises:

After transmitting the header stream, the codec stream and the real-time playback information can be transmitted.

The real-

And may include a length and a timestamp.

Wherein the transmission unit comprises:

When the header information of the moving image file is a file format recognizable by the client device, transmits the original header stream to the client device, and when the header information is not recognizable by the client device, Lt; / RTI > to the client device.

Wherein the transmission unit comprises:

After transmitting the header stream to the client device, transmitting the original codec stream to the client device when the codec type of the video file is decodable by the client device,

The client device comprising:

The header stream having the recognizable file format and the original codec stream can be real-time remixed.

Wherein the transmission unit comprises:

After transmitting the converted header stream to the client device, repacking the original codec stream to the recognizable file format and transmitting the repacked stream to the client device,

The client device comprising:

The converted header stream and the repacked codec stream can be real-time remixed.

Wherein the transmission unit comprises:

If the codec type of the moving picture file is not decodable by the client device after transmitting the header stream to the client device, the codec stream is transcoded to be decodable by the client device, and the transcoded codec stream To the client device,

The client device comprising:

The header stream and the transcoded codec stream can be resampled in real time.

The client device comprising:

A receiving unit for receiving a codec stream and real-time reproduction information of the moving picture file after receiving a header stream of the moving picture file; a receiving unit for receiving the header stream, the codec stream, and the real- A remuxer for remixing the information to generate a playback file, and a playback unit for decoding and reproducing the codec stream according to a result of analyzing the header stream by receiving the playback file,

The header stream may have a file format recognizable by the reproducing unit, and the codec stream may have a codec type capable of being recognized by the reproducing unit and a codec type capable of being decoded by the reproducing unit.

Wherein the paddle includes a plurality of paddles recognizing different file formats,

Further comprising a selection unit for confirming a file format of the header stream, selecting a plummer corresponding to the file format from among the plurality of reamers, and outputting the header stream, the codec stream, and the real- .

According to another aspect of the present invention, there is provided a transmission method of a transmitting apparatus for streaming a moving picture file requested by a client device, the method comprising: transmitting a header stream of a moving picture file having a file format recognizable by the client apparatus to the client device And transmitting the codec stream and the real-time playback information of the video file having the codec type that can be decoded by the client device to the client device.

Wherein the transmitting the header stream to the client device comprises:

Analyzing header information of the moving image file; checking whether the file format of the header information matches a file format recognizable by the client device; if the header format information does not coincide with the file format of the moving image file, Transferring the converted header stream to the client device, and, if they coincide with each other, transmitting the original header stream of the moving picture file to the client device.

Wherein the transmitting the codec stream and the real-time playback information to the client device comprises:

Determining whether a codec type of the codec stream of the moving picture file is a codec type that can be decoded by the client device; and transcoding the codec stream to a decodable codec type if the codec stream is not a decodable codec type, Checking whether the file formats match with each other if the codec type is a decodable codec type, repacking the codec stream into the recognizable file format if the file formats do not match each other, Transmitting the coded codec stream, the repacked codec stream, or the original codec stream to the client device.

According to another aspect of the present invention, there is provided a receiving method of a client device for searching, requesting, receiving, and reproducing a moving image file, the receiving method comprising: receiving a header stream of the moving image file having a file format recognizable by the client device; Receiving a codec stream and real-time playback information having a file format recognizable by the client device and a codec type decodable by the client device, and reproducing the header stream, the codec stream and the real-time playback information in real- .

The method of claim 1,

Checking a file format of the header stream, selecting a pseudo-pseudo-random number corresponding to the file format from among a plurality of pseudo-random numbers recognizing different file formats, selecting the header stream, the codec stream, Reproducing the information in real time, and reproducing the remapped video file.

According to the embodiment of the present invention, it is possible to transmit an original stream without deterioration of original image quality while preventing unnecessary transcoding, and real-time video viewing is possible.

In addition, it is possible to support various file formats, and it is not necessary to provide an expensive CPU (Central Processing Unit) for transcoding on the server side, thereby reducing cost.

1 is a view for explaining remediation according to an embodiment of the present invention.
2 shows a schematic configuration of a real-time remediation system according to an embodiment of the present invention.
3 is a block diagram showing the detailed configuration of the transmitting apparatus of FIG.
4 is a block diagram illustrating a detailed configuration according to an embodiment of the client device of FIG.
5 is a block diagram showing a detailed configuration according to another embodiment of the client device of FIG.
6 is a flowchart illustrating a transmission method according to an embodiment of the present invention.
7 is a flowchart illustrating a receiving method according to an embodiment of the present invention.
8 is a flowchart illustrating a receiving method according to another embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

Throughout the specification, when an element is referred to as "comprising ", it means that it can include other elements as well, without excluding other elements unless specifically stated otherwise.

Also, the terms of " part ", "... module" in the description mean units for processing at least one function or operation, which may be implemented by hardware or software or a combination of hardware and software.

Hereinafter, a real-time remodeling system, a transmission method, and a reception method according to an embodiment of the present invention will be described in detail with reference to the drawings.

1 is a view for explaining remediation according to an embodiment of the present invention.

Referring to FIG. 1, the transport stream is divided into a header stream and a codec stream. The codec stream includes video data and audio data.

Referring to FIG. 1 (a), a transport stream may include a header stream and a codec stream composed of index, audio data, and video data. Referring to FIG. 1 (b), the transport stream may include a header stream and a codec stream composed of audio data, video data, and indexes. Referring to FIG. 1C, the transport stream may include a header stream, a codec stream including audio data (AD), video data (VD), and an index.

At this time, the video data and the audio data constituting the codec stream are encoded according to a predetermined codec type and are decoded by the codec according to the codec. Here, the codec type includes both a video codec and an audio codec. The video codec may be DIVX, XVID, H.264, MPEG (Moving Picture Expert Group), or the like. The audio codec can be MP3, OGG, H.264, AC3, DTS, and so on.

In addition, the transport stream may have a different file format. For example, the file format may be configured as (a), (b), or (c). Further, various methods are possible without being limited to such a configuration method. These file formats can be AVI, WMV, MP4, MKV, MOV, ASF, and so on.

Thus, if the file format is different, the file extension is different. For example, the file extension of (a) may be AVI, the file extension of (b) may be MP4, and the file extension of (c) may be WMV. This is for the purpose of explaining the concept of a file format, and may be different from the configuration of an actual file format. The fact that the file format is different does not mean that the data sort order is different. Depending on the file format, resolution, bit rate, etc. may be different. Converting a file format also means converting this format.

At this time, the file format and codec type may be related but not necessarily dependent.

The AVI file format is a combinable video codec that can adopt one of DIVX, XVID, or MPEG series. Therefore, in case of (a), when the file extension is AVI, the transport stream may be implemented by DIVX, XVID, MPEG, or the like, the video codec type of the codec stream. That is, even a moving picture file having the same file extension may have different codec types.

On the other hand, although the file extensions are different, the codec types may be the same. For example, the AVI file format can be combined with the MPEG video codec, and the MP4 file format can be combined with the MPEG1.2.4 video codec. (a) is an AVI file format and (b) is an MP4 file format, the codec stream of (a) may be encoded by an MPEG video codec and the codec stream of (b) may be encoded by an MPEG 1.2.4 video codec . Accordingly, if a client device having an MPEG-based codec can recognize both the AVI file format and the MP4 file format, both the AVI video file and the MP4 video file can be decoded and played back.

However, when the client device is a mobile device, the file format that is normally recognizable is limited. In this case, if the file format is different, transcoding must be performed even though it is a video file that can be decoded. Therefore, in the embodiment of the present invention, real-time remodeling is implemented to prevent such unnecessary transcoding. The embodiment configuration will be described below with reference to Figs. 2 to 8. Fig.

2 shows a schematic configuration of a real-time remediation system according to an embodiment of the present invention.

Referring to FIG. 2, the storage device 100 stores a plurality of video files having different file formats / codec types. The transmitting apparatus 200 is physically connected to the storage apparatus 100 and acquires a moving picture file requested by the client apparatus 300 from the storage apparatus 100 and transmits the same to the client apparatus 300.

The transmitting apparatus 200 and the client device 300 are connected to each other through a network 400 such as the Internet.

Here, the network 400 may be configured without discriminating its communication modes such as wired and wireless. (LAN), a metropolitan area network (MAN), a metropolitan area network (MAN), a wide area network (LAN), or a wide area network (WAN), and may be a well-known World Wide Web (WWW), and may be a short distance communication such as an Infrared Data Association (IrDA) or Bluetooth Lt; / RTI > may be used.

Here, the storage device 100 and the transmission device 200 may be included in a NAS (Network Attached Storage) server or a cloud server. Alternatively, the NAS server or the cloud server includes only the storage device 100, and the transmitting device 200 may be physically connected to the NAS server or the cloud server.

The transmitting apparatus 200 transmits a header stream of a moving picture file having a file format recognizable by the client device 300 and a moving picture file having a codec type that can be decoded in the file format and the client device 100, To the client device 300, respectively.

Here, the header stream includes information such as a video codec, an audio codec, a resolution, a frame number, and a bit rate of a video reproduction apparatus for reproducing an image in a file format in an area where basic information of a video file having a predetermined file format exists have. It is divided into MainHEADER, StreamHEADER, StreamFormat, etc. Information about the video codec and audio codec can be represented by analyzing StreamHeader.

The client device 300 is an apparatus for searching for, requesting, receiving, and reproducing a moving image file, and may be a mobile device. However, the present invention is not limited to a mobile device, and any device capable of reproducing a moving picture file having one or more different file formats and one or more different codecs is possible. Of course, one file format and one codec may be provided.

The client device 300 real-time remaps and reproduces the header stream and the codec stream received from the transmission apparatus 200.

3 is a block diagram showing the detailed configuration of the transmitting apparatus of FIG.

3, the transmitting apparatus 200 includes a plurality (n) of demuxers 201 and 203, a transmitting unit 205, and a processor 207. [

A plurality of (n) decipherers 201 and 203 support different file formats, respectively, and analyze the header information of a moving picture file having a supported file format.

A plurality of (n) decipherers 201 and 203 separate the moving picture file into header information and codec data.

The transmission unit 205 transmits the header stream to the client device 300, and then transmits the codec stream and the real-time playback information to the client device 300.

The transmitting unit 205 has a different packing method for each of the decipherers 201 and 203 even if the codec is the same. Therefore, it adds a necessary information or transmits a codec stream from which unnecessary information is removed.

Here, the real-time playback information includes a length and a timestamp. The length and timestamp are information for real-time play. In the state where the codec stream is not completely remuxed, the codestream is transmitted together because its length and timestamp are unknown. The user selects real time play or remixing and saves it as a file and then selects play.

The transmission unit 205 confirms the file format of the moving picture file based on the analysis result of the header information of the decryption keys 201 and 203. Converts the header stream of the moving image file into a file format recognizable by the client device 300, and transmits the converted file format to the client device 300. Then, the client device 300 transmits a codec data stream having a decodable codec type to the client device 300.

If the header information of the moving image file is a file format recognizable by the client device 300, the transmitting unit 205 transmits the original header stream of the moving image file stored in the storage device 100 to the client device 300. On the other hand, if the client device 300 can not recognize the file format, the client device 300 transmits the header stream converted into the recognizable file format to the client device 300.

If the codec type of the moving picture file can be decoded by the client device 300 after the header stream is transmitted to the client device 300, the transmitting unit 205 transmits the original codec stream of the moving picture file stored in the storage device 100 to the client To the device (300). The client device 300 then real-time remaps the header stream with the recognizable file format and the original codec stream.

After transmitting the converted header stream to the client device 300, the transmitter 205 repackages the original codec stream into the recognizable file format and transmits the repacked stream to the client device 300. Then, the client device 300 real-time remaps the converted header stream and the recoded codec stream.

Here, the repacking means reconstructing or reassembling the codec stream constructed as shown in FIG. 1 (a), for example, as shown in FIG. 1 (b) or (c). That is, repackaging is not a concept of transcoding but a concept of reconstruction of a codec stream.

For example, the codec format can be typically H.264 or HEVC codec.

In case of AVI h.264 codec storage, it is Byte stream format.

That is, the start code (start code) is in front of the frame or nal, for example, "0x000001XXXXXXXXXX" or "0x00000001XXXXXXXXXX". Where XXXXXXXXXX is the codec data.

On the other hand, the h.264 codec storage method in the mp4 file has no startcode and is preceded by the codec length, which is equal to "frame size (usually 4 bytes) + XXXXXXXXXX".

That is, in case of remixing with avi -> mp4, repacking is a relatively simple task of removing the startcode from the codec data and writing the size of the codec data in that position.

In addition, the sequence header of the codec must be stored in a specific area of the file format. All of these operations correspond to repacking.

After transmitting the header stream to the client device 300, if the codec type of the video file is not a type that can be decoded by the client device 300, the transmitting unit 205 may decode the codec stream in the client device 300 Transcodes, and transmits the transcoded codec stream to the client device (300). Then, the client device 300 real-time remaps the header stream and the transcoded codec stream.

Here, in general, a moving picture file is compressed by a codec that is distinguished by a specific compression standard or a compression method. The decoding of a moving picture file encoded by a specific codec and the encoding by a new codec are referred to as transcoding.

The processor 207 is connected to the storage device 100, a plurality of (n) decipherers 201 and 203, and a transmitting unit 205 to control their operation.

4 is a block diagram illustrating a detailed configuration according to an embodiment of the client device of FIG.

4, the client device 300 includes a query unit 301, a reception unit 303, a remuxer 305, and a playback unit 307. [

The query unit 301 transmits a search request and seek of a video file desired by the user.

The receiving unit 303 receives the header stream of the moving image file requested to be searched or seeked from the transmitting apparatus 200, and then receives the codec stream and the real-time playback information of the moving image file.

At this time, the header stream has a file format recognizable by the reproducing unit 307, the codec stream has a codec type capable of being recognized by the reproducing unit 307 and a codec type capable of being decoded by the reproducing unit 307.

The re-extractor 305 re-muxes the header stream, the codec stream, and the real-time playback information to generate a playback file.

The playback unit 307 receives the playback file from the playback unit 305 and decodes and reproduces the codec stream according to the result of analyzing the header stream. Since the reproducing operation of the reproducing unit 307 is a known technique, a detailed description will be omitted.

FIG. 5 is a block diagram showing a detailed configuration according to another embodiment of the client device of FIG. 2, which corresponds to an embodiment having a plurality of re-buffers 305 in the configuration of FIG.

5, the client device 300 includes a query unit 301, a receiving unit 303, a reproducing unit 307, a plurality of re-buffers 309 and 311, and a selecting unit 313 .

The configuration of the query unit 301, the reception unit 303, the playback unit 307, and the plurality of (n) reed switches 309 and 311 are the same as those described in FIG. However, a plurality of (n) re-extractors 309 and 311 recognize different file formats, and the operation thereof is the same as in Fig.

The selection unit 313 is connected to the reception unit 303 and a plurality of (n) reed switches 309 and 311. The selection unit 313 confirms the file format of the header stream. Then, the reed-selecting unit 309 or 311 corresponding to the file format confirmed among the plurality of (n) reed-selecting units 309 and 311 is selected. And outputs the header stream, the codec stream, and the real-time playback information received by the receiving unit 303 to the selected reed 309, 311.

6 is a flowchart showing a transmission method according to an embodiment of the present invention, and shows the operation of the transmission apparatus 200 shown in Figs.

Referring to FIG. 6, when a video file search request is received from the client device 300 (S101), one of the plurality of (n) demuxers 201 and 203, The decipherers 201 and 203 read the moving picture file requested to be retrieved from the storage device 100 and decipher it (S103). Then, the header information of the moving picture file is analyzed (S105).

The transmitting unit 205 confirms the file format of the header information of the demuxed moving image file in step S103 (S105).

The transmitting unit 205 determines whether the file format of the header information confirmed in step S105 and the file format recognizable by the client device 100 coincide with each other (S107). Here, the file format recognizable by the client device 100 may be acquired in step S101, may be stored in advance, or may be acquired in various manners.

If they do not coincide with each other in step S107, the transmitting unit 205 extracts the header information of the moving image file (S109) and converts the extracted header information into a file format recognizable by the client device 300 (S111).

In step S113, the transmitting unit 205 transmits the original header stream of the moving image file to the client device 300 if the header stream is converted into the recognizable file format in step S111 or in step S107.

The transmitting unit 205 checks the codec type of the de-multiplexed moving picture file in step S103 (S115).

The transmitting unit 205 determines whether the codec type of the moving picture file is a codec type that can be decoded in the client device 300 (S117).

At this time, if the codec type is not a decodable codec type, the transcoder 205 transcodes the codec stream into a codec type that can be decoded in the client device 300 (S119).

On the other hand, if the codec type is a decodable codec type, the transmitting unit 205 checks whether the file formats agree with each other (S121).

If the file formats do not coincide with each other, the transmitting unit 205 re-packs the codec stream into a recognizable file format (S123).

The transmitting unit 205 transmits the transcoded codec stream in step S119 or the original codec stream or the original codec stream to the client device 300 in step S125.

FIG. 7 is a flowchart illustrating a receiving method according to an embodiment of the present invention, and shows the operation of the client device 300 of FIGS. 1 and 4. FIG.

Referring to FIG. 7, the query unit 301 searches for or searches for a moving image file in the transmitting apparatus 200 (S201). Here, seek refers to an operation of searching for a scene in play or moving to a specific time in one file.

The receiving unit 303 receives the header stream of the video file requested to be searched in step S101 having the file format recognizable by the client device 300 (S203).

The receiving unit 303 receives the codec stream and the real-time playback information having the codec type that can be decoded by the client device 300 and the file format recognizable by the client device 300 (S205).

The re-decipherment unit 305 outputs to the playback unit 307, a moving image playback file which real-time remaps the received header stream, codec stream and real-time playback information in step S203 and step S205.

FIG. 8 is a flowchart illustrating a receiving method according to another embodiment of the present invention, and illustrates the operation of the client device 300 of FIGS. 1 and 5.

Referring to FIG. 8, after the query unit 301 searches for a moving image file, the receiving unit 303 receives a header stream of the searched moving image file from the transmitting apparatus 200 (S301).

The selection unit 313 confirms the file format of the header stream received in step S301 (S303).

The selection unit 313 selects the reed 309 or 311 corresponding to the file format confirmed in step S303 among the plurality of reed 309 or 311 recognizing different file formats at step S305.

The selector 313 outputs the header stream, the codec stream, and the real-time playback information received from the transmitter 200 to the selected receiver 309 or 311 (S307).

Then, the header stream, the codec stream, and the real-time playback information are reproduced in real time through the selected reed 309 and 311, and the re-edited video file is reproduced by the reproducing unit 307.

The embodiments of the present invention described above are not implemented only by the apparatus and method, but may be implemented through a program for realizing the function corresponding to the configuration of the embodiment of the present invention or a recording medium on which the program is recorded.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, It belongs to the scope of right.

Claims (16)

A client device for searching and requesting, receiving and playing a video file, and
Converting the header stream into a second file format recognizable by the client device and transmitting the header stream to the client device when the first file format of the header stream of the moving image file is a file format not recognizable by the client device, And a transmission device for repacking the codec stream of the moving picture file to the client device when the codec type of the moving picture file is decodable by the client device,
Wherein the first file format and the second file format have different file extensions,
The above-
And reconstructs or reassembles data included in the codec stream based on a codec storage method defined in the second file format,
The client device comprising:
And real-time remapping the header stream converted into the second file format and the repacked codec stream in real time. The method according to claim 1,
The transmitting apparatus includes:
A real-time remodeling system included in or connected to a NAS (Network Attached Storage) server or a cloud server that stores a plurality of movie files having different file formats and codec types. The method according to claim 1,
The transmitting apparatus includes:
A plurality of demuxers for respectively supporting different file formats, analyzing header information of a video file having a supported file format, and
And the client device transmits a header stream of the moving picture file to the client device, and transmits the header format of the moving picture file to the client device, For transmitting a codec data stream having a type to the client device
The real-time remuxing system comprising: The method of claim 3,
The plurality of demultiplexers
Separating the moving picture file into header information and codec data,
Wherein the transmission unit comprises:
A real-time remapping system that transmits a codec stream and real-time playback information after transmitting a header stream. 5. The method of claim 4,
The real-
A real time remapping system comprising a length and a timestamp. 5. The method of claim 4,
Wherein the transmission unit comprises:
When the header information of the moving image file is a file format recognizable by the client device, transmits the original header stream to the client device, and when the header information is not recognizable by the client device, And transmitting the header stream to the client device. The method according to claim 6,
Wherein the transmission unit comprises:
After transmitting the original header stream and the converted header stream to the client device, transmitting the original codec stream to the client device when the codec type of the video file is decodable by the client device,
The client device comprising:
A real-time remapping system for real-time remixing a header stream having the recognizable file format and the original codec stream. delete The method according to claim 6,
Wherein the transmission unit comprises:
If the codec type of the moving picture file is not decodable by the client device after transmitting the header stream to the client device, the codec stream is transcoded to be decodable by the client device, and the transcoded codec stream To the client device,
The client device comprising:
And real-time remapping the header stream and the transcoded codec stream. The method according to claim 1,
The client device comprising:
A query unit for requesting a search of a video file desired by the user,
Receiving a header stream of the moving picture file and receiving a codec stream and real time reproduction information of the moving picture file;
A remuxer for remixing the header stream, the codec stream and the real time playback information to generate a playback file, and
And a playback unit which receives the playback file and decodes and reproduces the codec stream according to a result of analyzing the header stream,
Wherein the header stream has a file format recognizable by the reproducing unit, and the codec stream has a codec type in which the reproducing unit can recognize and a codec type in which the reproducing unit is decodable. 11. The method of claim 10,
Wherein the paddle includes a plurality of paddles recognizing different file formats,
Selecting a resampler corresponding to the file format from among the plurality of resenders, and outputting the header stream, the codec stream, and the real-time playback information to the selected librs,
The system further comprising: A transmission method of a transmission apparatus for streaming a video file requested by a client device,
Converting the header stream into a second file format recognizable by the client device and transmitting the header stream to the client device when the first file format of the header stream of the moving image file is a file format not recognizable by the client device, And
And if the codec type of the moving picture file can be decoded by the client device, transmitting the codec stream of the moving picture file to the client device after the codec stream of the moving picture file is decoded in the second file format,
Wherein the first file format and the second file format have different file extensions,
The above-
And reconstructs or reassembles data included in the codec stream based on a codec storage method defined in the second file format. 13. The method of claim 12,
Converting the header stream into a second file format recognizable by the client device and transmitting the header stream to the client device,
Analyzing header information of the moving picture file;
Confirming whether a file format of the header information matches a file format recognizable by the client device,
Converting the header stream of the moving picture file into the recognizable second file format if they do not coincide with each other,
Transmitting the header stream converted into the second file format to the client device, and
Transmitting the original header stream of the first file format of the moving picture file to the client device if they coincide with each other
. 14. The method of claim 13,
The method of claim 1,
Determining whether a codec type of the codec stream of the moving picture file is a codec type that can be decoded by the client device,
Transcoding the codec stream into a codec type capable of decoding if the codec type is not a codec type that can be decoded,
Determining if the file formats match each other if the codec type is a decodable codec type,
Repacking the codec stream into the recognizable file format if the file formats do not match;
Transmitting the transcoded codec stream, the repacked codec stream, or the original codec stream to the client device
. A receiving method of a client device for searching, requesting, receiving, and reproducing a moving picture file,
Receiving a header stream of the moving picture file having a file format recognizable by the client device,
Receiving a codec stream and real-time playback information having a file format recognizable by the client device and a codec type decodable by the client device, and
Reproducing the header stream, the codec stream, and the real-time playback information in real-
Wherein receiving the header stream comprises:
Receiving a header stream converted into a second file format recognizable by the client device when the first file format of the header stream of the moving image file is a file format not recognizable by the client device,
The step of receiving the codec stream and the real-
Receiving a codec stream repacked in the second file format if the first file format of the header stream of the moving image file is a file format not recognizable by the client device,
The method of claim 1,
Real-time remixing of the header stream converted into the second file format and the repacked codec stream,
Wherein the first file format and the second file format have different file extensions,
The above-
And reconstructs or reassembles data included in the codec stream based on a codec storage method defined in the second file format. 16. The method of claim 15,
The method of claim 1,
Confirming the file format of the header stream,
Selecting a librer corresponding to the file format from among a plurality of re-formats recognizing different file formats,
Real-time remixing the header stream, the codec stream and the real-time playback information through a selected librer, and
Steps to play the remapped video file
/ RTI >

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