SMPTE RP 197-2003 Film-to-Video Transfer List《胶片至视频转化清单》.pdf

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1、 1 Scope 1.1 This practice describes the data format of a list of film-to-video transfers. This list may be stored and referenced to document the process of transferring pictures and sound from film-related media to video media. The information documented in this list may include general production

2、and post-production information (date, facility, film type). The list also contains the specific time (synchronization) relationships between source and destination elements. The storage medium for this list is not specified by this practice. 1.2 This practice is based on ANSI/SMPTE 258M. The edit d

3、ecision list (EDL) forms the base description of the structure of this film transfer list (FTL). Sections of this practice describe additional information that is used to document film-to-tape transfer sessions. Only the differences between EDL and FTL are contained here. 2 Normative references The

4、following standards contain provisions which, through reference in this text, constitute provisions of this practice. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this practice are encouraged to investigate t

5、he possibility of applying the most recent edition of the standards indicated below. ANSI/SMPTE 258M-1993, Television Transfer of Edit Decision Lists SMPTE RP 194-1998, Film Negative Cutters Conform List 3 Notation 3.1 Terms Grammatical terms are capitalized, with an underscore separating words. Som

6、e terms are used in a specific and formal manner to identify the meaning of that term in the context of a film transfer list. This type of term is printed in upper case using underscores (_) to join words into one term. Each of these terms will be defined in a formal manner using Backus-Naur Form (B

7、NF) or the defined terms of 3.2 and ANSI/SMPTE 258M. 3.2 Defined terms in addition to the SMPTE EDL 3.2.1 film: Used to include both picture and sound sources on film-related media. 3.2.2 video: Used to include both video and audio destinations of video-related recording formats. Page 1 of 22 pages

8、RP 197-2003 Revision of RP 197-1998 Copyright 2003 by THE SOCIETY OF MOTION PICTURE AND TELEVISION ENGINEERS 595 W. Hartsdale Ave., White Plains, NY 10607 (914) 761-1100 Approved October 20, 2003 SMPTE RECOMMENDED PRACTICE Film to Video Transfer List RP 197-2003 Page 2 of 22 pages 4 Film transfer li

9、st Overall structure 4.1 General information The FTL replaces the EDL component in the grammar. Like the EDL, the FTL consists of the INITIAL_DIRECTIVES followed by the FILM_TRANSFER_LIST. FTL: INITIAL_DIRECTIVES FILM_TRANSFER_LIST SUB | INITIAL_DIRECTIVES FILM_TRANSFER_LIST ; The FILM_TRANSFER_LIST

10、 replaces the EDIT_LIST grammar item in an FTL and is made up of ELEMENTs. The physical order of the ELEMENTS in the list is representative of the order in which the transfers occurred. FILM_TRANSFER_LIST: ELEMENT | ELEMENT FILM_TRANSFER_LIST ; 4.2 Film transfer list elements There are six types of

11、elements in the list: system directive information element transfer element user element trigger element device control element ELEMENT: SEPARATOR TERMINATOR | SYSTEM_DIRECTIVE_ELEMENT SEPARATOR TERMINATOR | INFORMATION_ELEMENT SEPARATOR TERMINATOR | TRANSFER_ELEMENT SEPARATOR TERMINATOR | USER_ELEM

12、ENT SEPARATOR TERMINATOR | TRIGGER_ELEMENT SEPARATOR TERMINATOR | DEVICE_CONTROL_ELEMENT SEPARATOR TERMINATOR 5 System directives 5.1 System directives of the film transfer list are not the same as the SYSTEM_DIRECTIVE of the EDL. They are used to contain information used by the transfer system to p

13、erform and document the transfer at the system level. This information has meaning across several transfer elements. When a system directive is encountered in the list, the effect of the directive remains until cancelled by another directive. Some system directives act as default values for fields w

14、ithin a TRANSFER_ELEMENT. When a new value is specified in a transfer, the transfer suspends the system directives value for that transfer only. SYSTEM_DIRECTIVE_ELEMENT: “*“ PRINTABLE_STRING | “INCLUDE“ SEPARATOR FILENAME “=“ TIMECODE | “NORECORD“ SEPARATOR MODE_FIELD SEPARATOR MEDIUM_IDENTIFIER |

15、“RECORD“ SEPARATOR MODE_FIELD SEPARATOR MEDIUM_IDENTIFIER “=“ TIMECODE ; RP 197-2003 Page 3 of 22 pages 5.2 * directive The * directive is the same as the * item in the EDLs INFORMATIONAL_DIRECTIVE. It is a system level comment. 5.3 INCLUDE, NORECORD and RECORD directives The INCLUDE, NORECORD, and

16、RECORD directives are the same as the EDLs CONTROL_DIRECTIVEs of the same names. 6 Information elements 6.1 The INFORMATION_ELEMENT is unique to the FTL. It is used to create specific data items for the session. Data items are formed by an IDENTIFIER followed by the character :. Some specific INFORM

17、ATION_ELEMENT names are defined by this guideline. Other IDENTIFIERs followed by : can be created in the list as long as the name is different from those specified here. The content of the nonreserved names is the PRINTABLE_STRING that follows. The content of each reserved INFORMATION_ELEMENT name i

18、s as defined in this clause. INFORMATION_ELEMENT: “FRAME_RATE:“ SEPARATOR ROLL_ID SEPARATOR REAL_NUMBER SEPARATOR REAL_NUMBER | “RECORD_FRAME_RATE:“ SEPARATOR REAL_NUMBER | “EDGE_NUMBER_PERIOD:“ SEPARATOR ROLL_ID SEPARATOR INTEGER “/“ INTEGER | “EDGE_NUMBER_TYPE:“ SEPARATOR ROLL_ID SEPARATOR EDGE_NU

21、OOT_DATE:“ SEPARATOR PRINTABLE_STRING | “TRANSFER_DATE:“ SEPARATOR PRINTABLE_STRING | “SOURCE_MEDIUM:“ SEPARATOR ROLL_ID SEPARATOR PRINTABLE_STRING | IDENTIFIER : SEPARATOR PRINTABLE_STRING ; 6.2 FRAME_RATE: The “FRAME_RATE:“ item is used to specify the natural frame rate and the transfer frame rate

22、 for each source. The first value is expressed as a real number and should contain enough precision to reflect the exact frame rate of the source material when it was produced; however, it is often an integer (e.g., 24). The second value, if present, is also a real number and represents the frame ra

23、te to which the source was resolved during transfer. FRAME_RATE must be specified for each roll in a transfer session; there is no default. In the case of a film source in an NTSC system, the first value might be “24,“ and the second value might be “23.98,“ reflecting the standard practice and field

24、 rate of NTSC. If 25 frames/s film or audio sources were RP 197-2003 Page 4 of 22 pages transferred in a 50-Hz system, the second value would not be needed to document a standard frame-per-frame transfer. The ratio between the two values documents variable speed transfer rates that may take place in

25、 a transfer. Although two digits of decimal precision are an approximation of the exact frequency involved, implementations may round to the closest exact frame rate on the system. If an ambiguity must be avoided, additional digits of decimal precision should be used. 6.3 RECORD_FRAME_RATE: The “REC

26、ORD_FRAME_RATE“ item is used to specify the exact frame rate of the device recording the transfer. It is expressed as a real number and should contain enough precision to reflect the exact frame rate of the device. For NTSC systems, the value is usually 29.97. RECORD_FRAME_RATE must be specified for

27、 each transfer session; there is no default. 6.4 EDGE_NUMBER_PERIOD: “EDGE_NUMBER_PERIOD:“ is used to note the number of film frames between whole edge numbers on the source medium identified. This may be used by the system to calculate conversions based on frame rates, time, and edge numbers. The v

28、alue in EDGE_NUMBER_PERIOD is expressed as a ratio of two integers, the number of perforations per edge number, and the number of perforations per frame. When the first integer is not divisible by the second integer (as in the example below), a “perf specifier“ is required to identify unambiguously

29、the film frame referred to by transfer elements. Refer to SMPTE RP 195 for a description of the perf specifier. EDGE_NUMBER_PERIOD must be specified for each roll in a transfer session; there is no default. Example: EDGE_NUMBER_PERIOD: ROLL01 64/3 6.5 EDGE_NUMBER_TYPE: “EDGE_NUMBER_TYPE:“ records th

30、e method used to mark the edge numbers on the identified source roll. EDGE_NUMBER_TYPE: EDGE_NUMBER_TYPE_ITEM SEPARATOR EDGE_NUMBER_DIRECTION | EDGE_NUMBER_TYPE SEPARATOR EDGE_NUMBER_TYPE_ITEM SEPARATOR EDGE_NUMBER_DIRECTION ; EDGE_NUMBER_TYPE_ITEM: “BAR“ /* machine readable bar code */ | “LHR“ /* h

31、uman readable version of machine readable bar code*/ | “LAT“ /* latent image characters */ | “INK“ /* other printed characters */ ; EDGE_NUMBER_DIRECTION “INCR“ / * incrementing edge numbers * / | “DECR“ / * decrementing edge numbers; i.e., tails out * / ; If no EDGE_NUMBER_DIRECTION is specified, I

32、NCR is assumed. Note that two varieties of edge number may be specified simultaneously, and that the count directions may be different. EDGE_NUMBER_TYPE must be specified for each roll in a transfer session; there is no default. For example: EDGE_NUMBER_TYPE: ROLL01 BAR INCR INK DECR RP 197-2003 Pag

33、e 5 of 22 pages 6.6 FILM_FORMAT: The “FILM_FORMAT:“ data item is used to identify the specific gauge and variant of the transfer process for all film sources during the time the directive is active. There is no default value for this data item. (The defined contents of this data field are the same a

34、s those used in EBU Tech. 3245 Supplement 4.) FILM_FORMAT must be specified for each roll in a transfer session; there is no default. FILM_FORMAT: “16MM“ | “SUPER 16“ | “35MM“ | “35MM/3“ | “35MM/4 | “35MM/8“ | “35MM/12“ | “SUPER 35“ | “65MM“ | “65MM/5“ | “65MM/8“ | “65MM/10“ | “65MM/15“ | NUMBER “MM

35、/“ NUMBER ; 6.7 FILM_ASPECT_RATIO: “FILM_ASPECT_RATIO:“ expresses a ratio of width to height for the intended production aperture of the source images. The standard television aspect ratio of 4:3 (1.33:1) need not be specified and is considered the default. This data item is assumed to affect all fi

36、lm sources transferred during the time the particular directive is in force. A film aspect ratio specified different from the default means that the rectangular area of that proportion bounded horizontally by the FILM_APERTURE on the film is completely contained in the video production aperture. Asp

37、ect ratios wider than 4:3 will just fill the horizontal area of the video production aperture with the height of the picture being less than the height of the aperture. Black fill for letterboxing is implied. FILM_ASPECT_RATIO may be specified for each roll in a transfer session; by default, it is 4

38、:3. The modifier “ANAMORPHIC“ implies that the distorted film image is adjusted to normal proportions before fitting to the applicable aspect ratio. ASPECT_RATIO: WIDTH : HEIGHT “ANAMORPHIC“ ; WIDTH: REAL_NUMBER ; HEIGHT: REAL_NUMBER ; RP 197-2003 Page 6 of 22 pages 6.8 FILM_APERTURE: “FILM_APERTURE

39、:“ describes the production aperture of the source images. It is either a reference to the appropriate SMPTE standard or a PRINTABLE_STRING, which may be used to describe a non-SMPTE aperture. FILM_APERTURE may be specified for each roll in a transfer session; the default for a given FILM_FORMAT is

40、the SMPTE standard for the aspect ratio specified. In many cases, this would be SMPTE 96M. FILM_APERTURE: “SMPTE“ SEPARATOR “STD“ NUMBER “M“ “-“ NUMBER | “SMPTE“ SEPARATOR “RP“ NUMBER “-“ NUMBER | PRINTABLE_STRING ; 6.9 VIDEO_ASPECT_RATIO: “VIDEO_ASPECT_RATIO:“ expresses a ratio of width to height f

41、or the format of the production aperture in the video image output from the transfer. The standard television aspect ratio of 4:3 (1:33:1) need not be specified and is considered the default. VIDEO_ASPECT_RATIO: WIDTH “:“ HEIGHT ; 6.10 VIDEO_IMAGE_UNITS: “VIDEO_IMAGE_UNITS:“ specifies the number of

42、units of measurement of image width and height in the video output format production aperture. Typical values might be 8 6 (corresponding to common practice in the user interfaces of image manipulation devices), or 100 100 (corresponding to measurements as a percentage of picture). The default is 72

43、0 x 486 for TIME_CODE_MODULUS of 30 and 720 x 576 for TIME_CODE_MODULUS of 25. These correspond to the actual video raster of ANSI/SMPTE 125M and EBU Tech. 3267. VIDEO_IMAGE_UNITS: HORIZONTAL_VIDEO_IMAGE_UNITS : VERTICAL_VIDEO_IMAGE_UNITS ; HORIZONTAL_VIDEO_IMAGE_UNITS: NUMBER ; VERTICAL_VIDEO_IMAGE

44、_UNITS: NUMBER ; Example: VIDEO_IMAGE_UNITS: 24:18 6.11 PAN “PAN“ describes the amount of repositioning to frame an incompatible film image to the video production aperture in use. Any number of PAN elements may appear in an FTL; when a PAN has been specified, it RP 197-2003 Page 7 of 22 pages appli

45、es to all subsequent transfer elements until superseded by the next PAN element. After a PAN has been specified, panning may be reset to none using the element PAN 0 0. The PAN element is optional; the default is no panning, where the center of the film production aperture corresponds exactly to the

46、 center of the video production aperture. This is equivalent to the element PAN 0 0. If no PAN element appears in an FTL, the default applies to the entire FTL. PAN may be applied in combination with ZOOM and ROTATION (see 6.12 and 6.13). When PAN is specified, it is to be applied to the image befor

47、e any ZOOM or ROTATION. The syntax of a PAN element is as follows: “PAN:“ SEPARATOR PAN_PARAMETERS PAN_PARAMETERS: PAN_UNITS SEPARATOR TILT_UNITS ; PAN_UNITS: REAL_NUMBER ; TILT_UNITS: REAL_NUMBER ; For example: PAN 4 1.6 Horizontal position is specified by PAN_UNITS as a number of HORIZONTAL_VIDEO_

48、IMAGE_UNITS. Although arbitrary precision may be specified, accuracy and repeatability better than 1/16 pixel are not anticipated. The parameter is signed, specifying the shift in the center of the aperture. Positive count implies a rightward shift of the video production aperture relative to the fi

49、lm aperture, which results in a leftward shift of the subject material within the output image. Vertical position is specified by TILT_UNITS as a number of VERTICAL_VIDEO_IMAGE_UNITS. Although arbitrary precision may be specified, accuracy and repeatability better than 1/16 line are not anticipated. The parameter is signed, specifying the shift in the center of the aperture. Positive count implies a downward shift of the video production aperture relative to the film aperture, which results in an upward shift of the subjec

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