DE102006027441A1 - Method and apparatus for generating a digital transport stream for a video program - Google Patents

Abstract

The invention relates to a method for generating a digital transport stream for a video program, comprising at least the following steps: a) setting a minimum time (t <SUB> min </ SUB>), b) inputting still image data (Bi), e ) Forming a sequence (S <SUB> N </ SUB>) of frames (F1, ... Fn <SUB> min </ SUB>, F1, ... Fn '<SUB> min </ SUB>), wherein the sequence (S <SUB> N </ SUB>) includes a number (n <SUB> min </ SUB>, n '<SUB> min </ SUB>) of frames determined from a frame frequency (Fs <SUB> 0 </ SUB>) of the images to be displayed and the minimum time (t <SUB> min </ SUB>) or an adapted minimum time (t '<SUB>) formed by an adaptation to moving image data (Mj) min </ SUB>), wherein the formation of a sequence (S <SUB> N </ SUB>) comprises at least the following substeps: e1) determining a first frame of at least the still images (Bi) e3) signaling a new sequence (S <SUB > N </ SUB>), e4) incorporating at least the still image data (Bi) into a first frame (F1), e5) encoding the first one n frames (F1) according to a video standard, e6) generation of subsequent frames (F2, ... Fn <SUB> min </ SUB>; F2, ... Fn '<SUB> min </ SUB>) of the sequence (S <SUB> N </ SUB>), e7) Caching of the frames from the first frame (F1) and the subsequent frames (F2, .. Fn <SUB> min </ SUB>, F2, ... Fn '<SUB> min </ SUB>), and f) Generation of the digital transport stream (ASI ) from the cached sequence (S <SUB> N </ SUB>).

Description

The The invention relates to a method and a device for emitting of digital video data, in particular video data of a television channel.

The costs for the broadcast of digital TV channels are proportional to the required bandwidth. As a rule, the maximum bandwidth used is decisive, often significantly different from the average bandwidth used different. So needed a common one TV channel a bandwidth of z. B. 3.6 Mbps.

Of the biggest part the bandwidth is going for the representation of the picture is needed. The usual transmission method for digital TV programs will broadcast 25 to 60 frames per second. This is not the case every time transfer entire image, but in short intervals a complete picture (I-frame) and between the complete pictures the changes transmitted in the form of so-called motion data (P-frames, B-frames).

Still stations send pictures in a TV channel without movement (still pictures), where the bandwidth is a bit reduced because the motion data omitted. By reducing the frequency of transmission the complete picture, the average bandwidth to z. B. the factor 10 can be reduced. However arises at the time the transmission the complete picture again a peak bandwidth (peak), so that the maximum bandwidth is hardly reduced.

conventional Mix a still picture transmitter and a procedure to broadcast still pictures therefore in part several TV channels into a stream. WO 02/32144 shows a method and a device to broadcast a variety of video programs via a single digital transport stream, the transport stream a predetermined transmission rate Has. By time-shifted transmission The complete images are avoided that the peaks add up. Thus, by mixing a plurality of television programs or TV channels in a stream, a reduction in the bandwidth required per TV channel be achieved.

For one However, this does not reduce the bandwidth of each still image transmitter but it gets almost the entire bandwidth of a conventional one TV channel needed.

Farther Movement data is difficult to implement as it adds extra Can produce peaks, which increase the maximum bandwidth.

For the in The method shown in WO 02/32144, the TV channels consuming be prepared, so that a real-time encoding in which to disposal submitted video data sent out over the TV channel at short notice will not be possible is.

Of the The invention is based on the object, a method and a device to create digital video programs with still image data, which require a low bandwidth.

These The object is achieved by a method according to claim 1 and a device solved according to claim 13. The dependent claims describe preferred developments.

The inventive method and the device according to the invention can in particular purely software, i. in a computer program or a computer program product. Farther is also a hardware implementation possible.

Pure according to the invention Still picture programs are broadcast; furthermore, moving images can and / or ticker information incorporated into the still images become.

Thus, according to the invention set a minimum time, which is initially basically freely selectable. Of the TV data stream is generated by a sequencer (sequencer or sequence generating means) are subdivided into sequences, the length of the Sequences themselves as the product of the minimum time and the number of frames (Frame, picture frame) per unit time of the TV picture.

The sequence of frames is subsequently filled with stream data and entered into a buffer unit (Buffer Unit), the content of which is subsequently transmitted via an ASI current generator as ASI stream or ASI stream is broadcast.

In the buffer or the buffer unit can advantageously several sequences are stored, e.g. B. just encoded Sequence and the last two encoded sequences.

If a whole sequence is encoded and transmitted to the buffer unit is, it is subsequently transmitted, for DVB-S to the respective satellite. The required bandwidth This sequence thus results from the size of the buffer or buffer memory area for the Sequence and the minimum time or - especially in connection of moving picture data - one adjusted minimum time.

Consequently can be a small, advantageously time entirely or largely consistent bandwidth can be achieved.

The inventive method can also be used when broadcasting only a still picture channel or Still Image Program. Mixing multiple channels into one Stream is not necessary, but possible according to the invention.

The Invention can for non-interlaced (progressive) MPEG2 streams or even for interlaced streams, d. H. after the interlaced method, be applied.

A particularly preferred embodiment invention incorporates motion image data into the still image program without that a significant bandwidth increase is required. The moving pictures may be from a moving picture data stream, especially MPEG2 stream, are taken and z. B. in a small Picture area are displayed. Another preferred embodiment concerns the integration of ticker information; This can alternatively or additionally to the integration of the moving images.

The first frame or I-frame of the sequence is advantageously in one for this provided device, with the inclusion of moving images according to a moving picture I-frame is included and continue If necessary, ticketing information will be included. In a Another device will be the subsequent frames of the sequence educated. When moving pictures are included, the moving picture I frames become and further moving picture frames, in particular B and P frames, initially correspondingly into their macroblocks disassembled and the further device leads supplied; where appropriate Disassembled and integrated ticking information.

in this connection can from a moving picture data stream, in particular MPEG2 stream, moving pictures analyzed first by a frame analyzer be an adaptation of the for the still pictures chosen Minimum time tmin to reach the moving data. This will ensures that the first frame (I-frame) of the sequence always with a Moving picture I-frame of the moving picture data coincides. With inclusion of moving image data Thus, the time interval and the frame number of the sequence and advantageously also the subsequent sequence changed.

The Invention will be described below with reference to the accompanying drawings on some embodiments explained in more detail. It demonstrate:

1 a block diagram of an inventive device for broadcasting digital video programs;

2 a flowchart of a corresponding method for broadcasting digital video programs;

3 a representation of a cache with its subdivision; and

4 a representation of the generated image,

According to 1 be from a device 1 at least still images Bi recorded and issued an ASI data stream ASI. In this case, the device 1 a sequencer (or sequence generating device) 2 in which a minimum time t _{min is} entered. This minimum time is basically freely selectable; the larger t _min , the better the bandwidth reduction, but with t _min the average time to render an image also increases, as explained below. t _min can z. B. in the range of 3 to 5 seconds. The sequencer 2 serves the TV stream in sequences S of length n _min , ie subdivide into successive sequences each having a number (number of frames) n _{min of} successive frames Fi.

fs ₀ denotes the frame frequency, ie the number of frames per second of the TV picture. This results in the number (frame number) n _{min of} the frames per time interval t _min : n min = fs 0 · t min

Thus, a sequence S in the minimum time t _{min contains} the frames F1, F2 ..... Fn _min

The first frame in the time interval t _min contains the complete picture, all subsequent frames Fi contain only motion data, for a pure still picture transmitter results in the following space allocation of the stream data in the time interval t _min :

Of the first frame (F1) makes up a majority of the transmitted Data from (eg about 80%)

If motion data is added, the contribution of the subsequent frames F2, ..., Fn _min becomes larger:

The still images Bi are from a facility 13 for generating a first frame, which according to 1 an I-Mapper (I-Bild-Actor) 4 and an I-compression device 12 having.

According to the invention, separated movement data can be integrated. In particular, separated motion data may be a monochrome background (no transparency) or a motion picture window (an MPEG2 stream). According to 1 Therefore, moving pictures Mj, that is, an MPEG2 stream are recorded and recorded according to 4 in the picture shown 30 in a moving picture window 30-1 involved; furthermore, marquee information L is recorded and in a scroll bar 30-2 of the displayed picture 30 involved.

wobei t'min,i den Wert von t'min der Sequenz S_i angibt. Somit stellt die jeweilige angepasste Minimalzeit t'min (oder genauer: t'min,i) eine gegenüber dem vorgegebenen Wert tmin für die jeweilige Sequenz S_i angepasste bzw. etwas variierte Minimalzeit dar.According to the embodiment shown, if moving image data are included, n _min is advantageously varied to n ' _min so that the first frame F1 (I frame) always coincides with a first moving picture frame MF1 of the moving picture data, ie a moving picture I frame MF1 and ends with a frame in front of an I-frame. The time interval for the sequence is then changed from t _min to t ' _min . In terms of time, the average of all t ' _min approaches the value tmin, ie for the sequence of sequences S _N , N = 1,2,3,

where t'min, _i indicates the value of t'min of the sequence S _i . Thus, the respective adjusted minimum time t'min (or more precisely: t'min, i) represents a minimum time which is adjusted or somewhat varied with respect to the predetermined value tmin for the respective sequence S _i .

The moving picture data Mj are from a frame analyzer 6 added. The sequencer 2 syncs over the frame analyzer 6 with the moving picture I frames MF1 of the moving picture Mj. Here, the currently encoded sequence extends by a few frames. This extension is compensated by reducing the value n _min for the next sequence accordingly.

The marquee information L is from a text mapper 8th which graphically converts the marquee information L and the partial images Li thus generated at the beginning of a sequence S to the I-Mapper 4 and otherwise together with motion information BL to a text motion encoder 10 outputs.

The still images Bi are over the I-Mapper 4 , the I-compression device 12 and a cache 14 (Buffer unit). As soon as a new sequence F1, ... Fn _min begins, the sequencer shares 2 the cache 14 the length (in frames and seconds) of the currently coded sequence S with and signals the text mapper 8th and the I-Mapper 4 the beginning of the new sequence.

The text mapper 8th then generates an image of the marquee information L as image information Li at the current position that the I-Mapper 4 draws on the next I-frame F1.

The sequencer 2 also signals the frame analyzer 6 the beginning of a new sequence S, the frame analyzer 6 Now sends the current I-frame to the I-Mapper 4 which draws the I-frame to the next I-frame F1.

The sequencer 2 thus generates the sequence S from frames F1 ... to Fn ' _min , wherein the I-frame F1 from the respective still image Bi, including the respective I-frames of the moving images Mj and the corresponding marquee information Li, the current image of the marquee represents the current position. The I-compressor 12 compresses the bitmap I-frame FB ₁ output from the I-mapper according to the MPEG2 image compression method, and supplies the I-frame F1 to the buffer 14 out. Here pay attention to the I-compressor 12 that a given size for F1 is not exceeded, which can be done by adjusting the quantization coefficients of MPEG2 image compression.

The following frames F2 to _Fmin are from a motion mixer 18 (Motion mixer) generated for this purpose receives the dynamic data of the marquee information L and moving images Mj. Here, the frame analyzer decomposes 6 the incoming MPEG2 stream, ie the motion pictures Mj in the individual frames MFi, i = 1,2, .. and sends them to a frame cutter (frame clipper) 20 , If he steps on an I-frame MF1, this signalizes the sequencer 2 , Signals the sequencer 2 the beginning of a new sequence S back, so decodes the frame analyzer 6 the I-frame MF1 optionally cuts it to the moving image area and sends it to the I-Mapper 4 , There is no signaling by the sequencer 2 , the frame analyzer sends 6 the I-frame MF1 to a P-frame mapper 22 , which places the I-frame MF1 on the moving image area 30-1 clips the macroblocks MB1 of coded I-frames to the motion mixer 18 sends and signals this to generate a P-frame.

The frame cutter 20 decodes the incoming frames MFi and cuts them on the moving picture area 30-1 to. P and B frames (ie, MFi with i> 1) are examined for macroblocks MBx that contain motion vectors that are external to the moving image area 30-1 demonstrate. These macroblocks are replaced by intra macroblocks MB2 using the decoded frames MFi. The macroblocks MB2 of the trimmed P and B frames MFi are sent to the motion mixer 18 passed. The motion mixer 18 is signaled whether it is a P-frame or a B-frame.

The motion mixer 18 takes either the macroblocks MB1 or the macroblocks MB2 and further from the text motion encoder, depending on the frame type of the moving picture Mj 10 output text motion data TMD and assemble them into a subsequent frame Fi (with i> 1) of the respective sequence S, ie F2 to Fn ' _min . These frames Fi represent the moving picture data and are each a P-frame or a B-frame, whichever is the motion mixer 18 from the P-Frame Mapper 22 or the frame cutter 20 was signaled. If the TV stream ASI to be output does not contain any movement data, the motion mixer generates 18 always P-frames. The generated frames Fi are in the buffer 14 saved.

The cache 14 according to 3 three storage areas 14-1 . 14-2 . 14-3 in which it can store three sequences S _N , S _N-1 , S _N-2 , the currently encoded sequence S _N and the last two encoded sequences S _N-1 , S _N-2 . In the storage areas 14-1 . 14-2 . 14-3 become the respective sequence S, the frames F1 of the I-compressor 12 and the frames F2 to Fn ' _{min of} the agitation mixer 18 added. Signals the sequencer 2 the cache 14 the beginning of a new sequence Sm, then becomes the oldest memory area 14-2 deleted and released for writing. In the storage area 14-1 with the sequence just coded, the number n ' _min of frames F1 to Fn' _min and the resulting time interval are stored. Since, due to the variable t ' _{min, it is} fundamentally not certain that the transmission of S _{N-1 has} already taken place completely, S _N-1 becomes in the buffer memory 14 held. Advantageously, the transmission of S _N first begins when the two criteria are satisfied, namely that S _{N-2 has been} erased, ie S _{N has been} generated, and S _N-1 , on the other hand

In a simpler embodiment, in which only still images Bi are picked up and processed, is in the device 1 of the 1 only the sequencer 2 , the I-Mapper 4 , the I-compressor 12 , the cache 14 , the motion mixer 18 and the ASI power generator 16 required. In this case, the motion mixer 18 all subsequent frames F2 to Fn ' _min according to the MPEG2 standard with P-frames fill up.

bzw. wenn B_S in Bytes eingesetzt wird, ergibt sich ein Wert der Bandbreite B_S in [Bit/Sec] als

The ASI power generator 16 sends the completed sequences S _N with the current bandwidth B _S as ASI data stream ASI, so that they to the satellite 32 be transmitted. S _{buff is} the size of a memory area 14-i (i = 1, 2, 3), the required bandwidth B _{S of} this sequence is calculated as follows:

or if B _{S is} inserted in bytes, the result is a value of the bandwidth B _S in [Bit / Sec] as

The set-top boxes 34 (Receivers) take up the ASI data stream ASI and begin to display the image data only after they have received a complete image, ie a complete sequence S _N. This is done in the set-top boxes 34 set a VBV delay of 0xFFFF in the MPEG2 stream and a suitable size of the VBV buffer.

• a) Festlegen einer Minimalzeit t_min,
• b) Eingeben von Standbild-Daten Bi,
• c) Eingeben von Bewegtbild-Daten Mj (falls vorgesehen)
• d) Eingeben von Laufschriftinformationen L, (falls vorgesehen)
• e) Bilden einer Sequenz S_N von Frames F1,...Fn_min, F1,...Fn'_min, wobei die Sequenz S_N eine Anzahl n_min, n'_min von Frames enthält, die ermittelt wird aus einer Frame-Frequenz fs₀ der darzustellenden Bilder und der Minimalzeit t_min oder einer durch eine Anpassung an einzubindende Bewegtbild-Daten Mj gebildeten angepassten Minimalzeit t'_min, wobei das Bilden einer Sequenz S_N mindestens folgende Teilschritte aufweist: e1 Ermitteln der ersten Frames von Bewegtbild und Standbild e2) Synchronisieren der ersten Frames von Bewegtbild und Standbild e3) Signalisieren einer neuer Sequenz S_N e4) Einbinden der Standbild-Daten Bi und Bewegtbilddaten und von Laufschriftinformationen BL in ein erstes Frame F1, e5) Kodierung des ersten Frames F1 entsprechend einer Video-Norm, e6) Erzeugung der nachfolgenden Frames F2,... Fn_min; F2,... Fn'_min der Sequenz S_N, wobei aus den Bewegtbilddaten Mj P-Frames und B-Frames zur Kennzeichnung von Änderungen zwischen den Frames entnommen und zur Ausbildung der auf das erste Frame nachfolgenden Frames F2,... Fn'_min verwendet werden, e7) Zwischenspeicherung der aus dem ersten Frame F1 und den nachfolgenden Frames F2,... Fn_min; F2,... Fn'_min gebildeten Sequenz S_N, und
• f) Erzeugung des digitalen Transportstroms ASI aus der zwischengespeicherten Sequenz S_N.

The inventive method for generating a digital transport stream for a video program is in 3 and after starting in step 0 according to this embodiment, has the following steps:

• a) setting a minimum time t _min ,
• b) input of still image data Bi,
• c) input moving picture data Mj (if provided)
• d) input of marquee information L, (if provided)
• e) forming a sequence S _N of frames F1,... Fn _min , F1,... Fn ' _min , wherein the sequence S _{N contains} a number n _min , n' _min of frames which is determined from a frame Frequency fs _{0 of} the images to be displayed and the minimum time t _min or a matched minimum time t ' _min formed by an adaptation to be integrated image data Mj, wherein the formation of a sequence S _N at least the following sub-steps: e1 determining the first frames of moving image and still image e2) synchronizing the first frames of moving picture and still picture e3) signaling a new sequence S _N e4) incorporating the still picture data Bi and moving picture data and running track information BL into a first frame F1, e5) encoding the first frame F1 according to a video standard , e6) Generation of the following frames F2,... Fn _min ; F2, ... Fn ' _{min of} the sequence S _N , wherein from the moving image data Mj P-frames and B-frames for identifying changes between the frames and for forming the frames on the first frame F2, ... Fn' _min , e7) caching of the first frame F1 and subsequent frames F2, ... Fn _min ; F2, ... Fn ' _min formed sequence S _N , and
• f) generating the digital transport stream ASI from the cached sequence S _N.

To Step f) the process is reset or after transmission all data in step g).

Claims (24)

A method for generating a digital transport stream for a video program, comprising at least the following steps: a) setting a minimum time (t _min ), b) inputting still image data (Bi), e) forming a sequence (S _N ) of frames ( F1, ... Fn _min , F1, ... Fn ' _min ), wherein the sequence (S _N ) contains a number (n _min , n' _min ) of frames, which is determined from a frame frequency (fs ₀ ) of the images to be displayed and the minimum time (t _min ) or an adapted minimum time (t ' _min ) formed by an adaptation to moving image data (Mj), the formation of a sequence (S _N ) comprising at least the following sub-steps: e1) determining a first frame of at least the still images (Bi) e3) signaling a new sequence (S _N ), e4) incorporating at least the still image data (Bi) into a first frame (F1), e5) encoding the first frame (F1) in accordance with a video standard, e6) Generation of the following frames (F2, ... Fn _min , F2, ... Fn ' _min ) of the sequence (S _N ), e7) Caching of the frames from the first frame (F1) and the subsequent frames (F2,. .. Fn _min ; F2, ... Fn ' _min ) formed sequence (S _N ), and f) generating the digital transport stream (ASI) from the cached sequence (S _N ). Method according to Claim 1, characterized in that, in step f), the digital transport stream (ASI) is generated with a bandwidth (Bs) which is determined from the quotient of the size (S _buff ) of the buffer area storing the sequence (S _N ) ( 14-1 . 14-2 . 14-3 ) and the minimum time (t _min ) or the adjusted minimum time (t ' _min ). Method according to claim 1 or 2, characterized in that in step e7) three successive sequences (S _N , S _N-1 , SS _N-2 ) are temporarily stored and in each case after completion of a current sequence (S _N ) the current sequence ( S _N ) is converted to the digital transport stream (ASI) and the oldest sequence (S _N-2 ) is deleted. Method according to one of the preceding claims, characterized in that the coding of the image data (Bi) and formation of the sequence (S _N ) from frames according to the MPEG2 standard. Method according to one of the preceding claims, characterized in that in a step b) moving image data (Mj) are recorded, in step e1) from the moving image data (Mj) a first frame (MF1) is determined and in a step e2 ) the first moving picture frame (MF1) of the moving pictures (Mj) and the first frame of the still pictures (Bi) are synchronized by adapting the frame number (n _min ) of the sequence to be formed into an adapted frame number (n ' _min ) and wherein the moving picture data is incorporated into the frames (F1, ... Fn ' _min ). Method according to claim 5, characterized in that in step e4) into the first frame (F1) of the sequence to be formed additionally to the first frame of the still picture data (Bi) also the first moving picture frame (MF1) of the moving image data (Bi) is included. A method according to claim 5 or 6, characterized in that cut out of the frames of the moving image data (Mj) a partial image and in the frames (F1, ... Fn _-min ) of the sequence to be formed (S _N ) is incorporated. Method according to one of Claims 5 to 7, characterized in that P-frames and B-frames for identifying changes between the frames are taken from the moving image data (Mj) and used to form the frames following on the first frame (F2, ... Fn ' _min ) can be used. Method according to one of the preceding claims, characterized characterized in that in a step d) marquee information (L) can be entered. Method according to Claim 9, characterized in that _{macroblocks are generated from the marquee information} (L) and including possibly existing motion vectors for integration in the fames (F2, ... Fn- _min ) following the first frame. Method according to one of the preceding claims, characterized characterized in that non-interlaced or interlaced transport stream data (ASI) are generated. Method according to one of the preceding claims, characterized in that the adjusted minimum times (t ' _min ) formed on incorporation of moving image data (Mj) on average converge in the long term to the minimum time (t _min ). Apparatus for generating a digital transport stream (ASI) for a video program, comprising at least: a sequencer ( 2 ) for determining sequences (S _N , S _N-1 , SS _N-2 ) and for signaling a new sequence (S _N ), each sequence having a predetermined number of frames (n _min , n ' _min ) of frames (Fi ) which is determined from a frame frequency (fs ₀ ) of the images to be displayed and a predetermined minimum time (t _min ) to be input or an adapted minimum time (t ' _min ) formed by an adaptation to moving image data (Mj) to be included; a facility ( 13 ) for determining a first frame (F1) from at least incoming still images (Bi), a facility ( 18 ) for determining the frames (F ₂ ,... Fn _min , F ₂ , Fn ' _min ) following the first frame (F1) of the sequence (S _N ), a buffer ( 14 ) for receiving the first frame (F1) and the subsequent frames (F2, ... Fn _min ; F2, ... Fn ' _min ) of each sequence, buffering a plurality of sequences (S _N , S _N-1 , SS _N-2 )) and output manufactures posited sequences (S _N ), a power generator ( 16 ) for generating a digital transport stream (ASI) from the completed sequences (S _N ). Apparatus according to claim 13, characterized in that the power generator ( 16 ) outputs a digital transport stream (ASI) with a bandwidth (Bs) which is determined by the ratio of a memory area (Bs). 14-1 . 14-2 . 14-3 ) of the cache ( 14 ) and the minimum time (t _min ) or adjusted minimum time (t ' _min ). Device according to claim 13 or 14, characterized in that the device ( 1 ) for determining a first frame (F1) an I-Mapper ( 4 ) for generating an uncompressed first frame (FB1), in particular bit map frames, and an I-compressor ( 12 ) for encoding the uncompressed first frame (FB1) according to a given video standard (MPEG2). Device according to one of claims 13 to 15, characterized in that the minimum time (t _min ) in the sequencer ( 2 ) can be entered. Device according to one of claims 13 to 16, characterized in that it comprises a frame analysis device ( 6 ) for recording moving picture data (Mj), decomposing the moving picture data (Mj) into individual frames (MF1, MF2, ...) and signaling a first moving picture frame (MF1) to the sequencer ( 2 ), wherein the sequencer ( 2 ) synchronizes with the notified first frames (I-frames) of the moving picture data (Mj), and the frame number of the currently-to-be-coded sequence (S _N ) changes to an adapted frame number (n ' _min ). Device according to claim 17, characterized in that the sequencer ( 2 ) of the frame analysis device ( 6 ) signals the beginning of a new sequence (S _N ) and the frame analysis device ( 6 ) a current first frame (I-frame) of the moving image data (Mj) to the device ( 13 ) for generating the first frame which draws the current first frame (I-frame) of the moving picture data onto the next still picture. Apparatus according to claim 17 or 18, characterized in that the frame analysis device ( 6 ) those first frames (I frames) of the moving picture data (Mj) which are not included in the first frame (F1) of the sequence to be generated (S _N ), to a P frame mapper ( 22 ) outputs the captured first frame (MF1) of the moving picture data onto a moving picture area ( 30-1 ) of the displayed image (30) intersects; create a P-frame from the I-frame and send it to the device ( 18 ) for generating the subsequent frames (F2, ... Fn ' _min ). Device according to one of claims 17 to 19, characterized in that the frame analyzer ( 6 ) the decomposed frames (MFi) of the moving image data (Mj) to a frame cutting device ( 20 ) which decodes the incoming frames (MFi) onto a moving picture area ( 30-1 ) and examine for macroblocks containing motion vectors that are based on sources outside the motion picture area ( 30-1 ) and replace these macro-blocks with intra-macroblocks (MB2) using the decoded frames (MFi). Apparatus according to claim 20, characterized in that the frame cutting device ( 20 ) the generated macro-blocks (MB2) to the device ( 18 ) for generating the subsequent frames and signals whether the macroblocks (MB2) belong to a P-frame or a B-frame. Device according to one of claims 13 to 21, characterized in that it comprises a text mapper ( 8th ), the ticker information (L) and signals of the sequencer ( 2 ) for the beginning of a new sequence (S _N ) and then generates an image (BL) of the marquee at the current position and to the device ( 13 ) to generate the first frame and continue to send tick information to a text motion encoder ( 10 ) for generating text motion data (TMD), wherein the text motion encoder ( 10 ) Text Movement Data (TMD) to the facility ( 18 ) outputs the generation of the subsequent frames. Device according to one of claims 13 to 22, characterized in that the memory device ( 14 ) three staging area ( 14-1 . 14-2 . 14-3 ) for storing a respective sequence (S _N , S _N-1 , SS _N _ ₂ ), wherein the buffer areas ( 14-1 . 14-2 . 14-3 ) are provided for the intermediate storage of the currently coded sequence (S _N ) and the last two coded sequences (S _N-1 , S _N-2 ) and when receiving a signal from sequencer ( 2 ) for the start of a new sequence the oldest memory area (S _N-2 ) is deleted and released for writing, whereby in the buffer area ( 14-1 ) with the sequence just coded (S _N ) the number of frames (n _min ; n ' _min ) and the resulting time interval (t _min , t' _min ) is stored. Device according to one of Claims 13 to 3, characterized in that the adapted minimum times (t ' _min ) formed on incorporation of moving image data (Mj) on average converge in the long term to the minimum time (t _min ).