4 Replies Latest reply on Feb 9, 2012 4:20 PM by the_wine_snob

    Whaaat? When is DV NTSC Widescreen 864 X 486? How to get this in Elements?

    audio90

      Hi there,

       

      I was given these specs to make a widescreen SD movie to send off to a company who will put in on an SD DVD for a theatre showing.

       

      The problem is, this doesn't match any of the output specs of Premiere Elements.

       

      ------------

      DIGITAL MOTION FILES 16 x 9  (SD) – WITH AUDIO

      Digital Motion Programs can be delivered in any of the following formats:

      1.  SD Tape formats: Digital Betacam, Betacam SP, IMX, SX

      3.  Mini DV, DV Cam 25.

      4.  JPEG 2000 or Motion JPEG Compressed QuickTime. (see chart on next page)

      PLEASE ENSURE THE COMPRESSION SETTING IN TABLE READS “JPEG 2000 or Motion

      JPEG at 100% quality”

       

      DESCRIPTIONSPECIFICATION / SD DIGITAL MOTION FILES (16 x 9)
      Content ResolutionStandard Definition 864 X 486 (width x height)
      Pixel GeometrySquare 1:1
      Aspect Ratio16:9 (1.78:1)
      Color Mode24‐bit RGB
      Audio48khz 16bit Stereo
      Frame Rate29.97 fps
      TEXT SAFE AREA690 pixels x 390 pixels
      CompressionJPEG 2000 or Motion JPEG at 100% quality


       

      Video clips must be created in a Standard Definition 16 x 9 aspect ratio (864 x 486)

      with a safe area of 690 x 390) pixels.

      ‐  All video clips must be delivered in the NTSC format.

      ‐  All video specifications must meet SMPTE standards and all digital audio

      must be two channel and not have an average level higher than ‐12 digital

      with peaks not to exceed ‐5 digital. Audio specifications for final movies are

      uncompressed 48khz, 16 bit stereo

      -----

       

      Anyone have any feedback? Where does this 864 X 486 size come from? Apple? The closest we got is 720 x480.

       

      Someone even made a video sample to send them but it has a 960 X 540 size so I don't think it is correctm you can see it here http://www.eatmarketing.com/media/moviefeb.mov

       

      Thanks in advance.

        • 1. Re: Whaaat? When is DV NTSC Widescreen 864 X 486? How to get this in Elements?
          Steve Grisetti Adobe Community Professional

          You should have no problems using miniDV as a source video if you've got your project set up for DV widescreen and you're capturing your video over a FireWire connection.

           

          But that doesn't seem to be the case. It looks like you're using JPEG2000 and MJPEG video as your source video, which is going to be challenging.

           

          In fact, I'm not quite sure what you're telling me with your specss. Are you saying you're trying to mix Betacam SP, miniDV, DVCam and MJPEG in the same project? I don't think that's going to go. Certainly not in Premiere Elements.

           

          Most of those formats aren't even supported by Premiere Elements -- and mixing them is only going to make things worse.

           

          If I'm misunderstanding, please let us know. What is your source video? And is your output planned to be a widescreen DVD?

           

          If so, your clients are a little confused about DVD specs. Even if you could create amn 864x486 DVD, your DVD player wouldn't play it!

           

          But once we have a better idea what your source video is and what you're trying to output, we can better advise you.

           

          Does you client just want a widescreen DVD to play on a egular DVD player?

          1 person found this helpful
          • 2. Re: Whaaat? When is DV NTSC Widescreen 864 X 486? How to get this in Elements?
            audio90 Level 1

            whoops, sorry, I should have been more clear.

             

            The specs in the table are what was supplied by the company that puts together the DVD for theatres to show. It's a regular SD widescreen DVD and yes, what's throwing me for a look is that odd size.

             

            The source files are actually a video (MOV) that someone made of some slide shows (at 960 X 540 size). The ideas is to convert it into a format that this company can take. I thought maybe there is a way that I could have gotten that size in Elements.

            • 3. Re: Whaaat? When is DV NTSC Widescreen 864 X 486? How to get this in Elements?
              Steve Grisetti Adobe Community Professional

              I'm still not sure what your client is looking for, audio. A DVD is a DVD. 720x480 (even if it's widescreen). There's no such thing as a DVD that's a custom size.

               

              Unless they're not looking for a DVD. Unless they're looking for a WMV or an MOV that's just recorded to a disc but must be played on a computer. But then it's not a  DVD.

               

              Sorry. Hope I don't sound elusive. But this workflow just doesn't make enough sense for me to make a recommendation.

              • 4. Re: Whaaat? When is DV NTSC Widescreen 864 X 486? How to get this in Elements?
                the_wine_snob Level 9

                Here are the full, possible specs. for DVD-Video:

                 

                [3.4] What are the video details?

                DVD-Video is an application of DVD-ROM, according to the specification created by the DVD Forum (see 6.1). DVD-Video is also an application of MPEG-1, MPEG-2, Dolby Digital, DTS, and other formats. This means the DVD-Video format defines subsets of these standards and formats to be applied in practice to make discs intended for DVD-Video players. DVD-ROM can contain any desired digital information, but DVD-Video is limited to certain data types designed for television reproduction.

                A disc has one track (stream) of MPEG-2 constant bit rate (CBR) or variable bit rate (VBR) compressed digital video. A restricted version of MPEG-2 Main Profile at Main Level (MP@ML) is used. SP@ML is also supported. MPEG-1 CBR and VBR video is also allowed. 525/60 (NTSC, 29.97 interlaced frames/sec) and 625/50 (PAL/SECAM, 25 interlaced frames/sec) video display systems are expressly supported. Coded frame rates of 24 fps progressive from film, 25 fps interlaced from PAL video, and 29.97 fps interlaced from NTSC video are typical. MPEG-2 progressive_sequence is not allowed, but interlaced sequences can contain progressive pictures and progressive macroblocks. In the case of 24 fps source, the encoder embeds MPEG-2 repeat_first_field flags into the video stream to make the decoder either perform 2-3 pulldown for 60Hz NTSC displays (actually 59.94Hz) or 2-2 pulldown (with resulting 4% speedup) for 50Hz PAL/SECAM displays. In other words, the player doesn't "know" what the encoded rate is, it simply follows the MPEG-2 encoder's instructions to produce the predetermined display rate of 25 fps or 29.97 fps. This is one of the main reasons there are two kinds of discs, one for NTSC and one for PAL. (Very few players convert from PAL to NTSC or NTSC to PAL. See 1.19.)

                Because film transfers for NTSC and PAL usually use the same coded picture rate (24 fps) but PAL resolution is higher, the PAL version takes more space on the disc. The raw increase before encoding is 20% (480 to 576), but the final result is closer to 15%, depending on encoder efficiency. This translates to an increase of 600 to 700 megabytes on PAL discs compared to NTSC discs.

                It's interesting to note that even interlaced source video can be rendered as progressive-structured MPEG pictures by a good encoder, with interlaced field-encoded macroblocks used only when needed for motion. Most film sources are encoded at 24 frames per second (the inverse telecine process during encoding removes duplicate 2-3 pulldown fields from the videotape source, and the remaining field pairs, although technically in interlaced form, can be re-interleaved by a progressive player). Most video sources are encoded at 25 or 30 interlaced frames per second. These may be mixed on the same disc, such as an interlaced-source logo followed by a progressive-source movie.

                See 3.8 for an explanation of progressive and interlaced scanning. See 1.40 for progressive-scan players. See the MPEG page <www.mpeg.org> for more information on MPEG-2 video.

                Picture dimensions are at maximum 720x480 (for 525/60 NTSC display) or 720x576 (for 625/50 PAL/SECAM display). Pictures are subsampled from 4:2:2 ITU-R BT.601 down to 4:2:0 before encoding, allocating an average of 12 bits/pixel in Y'CbCr format. (Color depth is 24 bits, since color samples are shared across 4 pixels.) DVD pixels are not square (see3.5). The uncompressed source is 124.416 Mbps for video source (720x480x12x30 or 720x576x12x25), or 99.533 or 119.439 Mbps for film source (720x480x12x24 or 720x576x12x24). In analog output terms, lines of horizontal resolution is usually around 500, but can go up to 540 (see 3.4.1). Typical luma frequency response maintains full amplitude to between 5.0 and 5.5 MHz. This is below the 6.75 MHz native frequency of the MPEG-2 digital signal (in other words, most players fall short of reproducing the full quality of DVD). Chroma frequency response is half that of luma.

                Allowable picture resolutions are:
                MPEG-2, 525/60 (NTSC): 720x480, 704x480, 352x480, 352x240
                MPEG-2, 625/50 (PAL): 720x576, 704x576, 352x576, 352x288
                MPEG-1, 525/60 (NTSC): 352x240
                MPEG-1, 625/50 (PAL): 352x288

                Different players use different numbers of bits for the video digital-to-analog converter, wit the best-quality players using 10 or 12 bits. This has nothing to do with the MPEG decoding process, since each original component signal is limited to 8 bits per sample. More bits in the player provide more "headroom" and more signal levels during digital-to-analog conversion, which can help produce a better picture.

                Maximum video bit rate is 9.8 Mbps. The "average" video bit rate is around 4 Mbps but depends entirely on the length, quality, amount of audio, etc. This is a 31:1 reduction from uncompressed 124 Mbps video source (or a 25:1 reduction from 100 Mbps film source). Raw channel data is read off the disc at a constant 26.16 Mbps. After 8/16 demodulation it's down to 13.08 Mbps. After error correction the user data stream goes into the track buffer at a constant 11.08 Mbps. The track buffer feeds system stream data out at a variable rate of up to 10.08 Mbps. After system overhead, the maximum rate of combined elementary streams (audio + video + subpicture) is 10.08. MPEG-1 video rate is limited to 1.856 Mbps with a typical rate of 1.15 Mbps.

                Still frames (encoded as MPEG I-frames) are supported and can be displayed for a specific amount of time or indefinitely. These are used for menus or slideshows. Still frames can be accompanied by audio.

                A disc also can have up to 32 subpicture streams that overlay the video for subtitles, captions for the hard of hearing, captions for children, karaoke, menus, simple animation, etc. These are full-screen, run-length-encoded bitmaps with two bits per pixel, giving four color values and four transparency values. For each group of subpictures, four colors are selected from a palette of 16 (from the YCbCr gamut), and four contrast values are selected out of 16 levels from transparent to opaque. Since one of the four values is usually 100% transparency (to let the video show through), only three combinations of colors and transparencies are left, making overlay graphics rather crude. Subpicture display command sequences can be used to create effects such as scroll, move, color/highlight, and fade. The maximum subpicture data rate is 3.36 Mbps, with a maximum size per frame of 53220 bytes.

                 

                From Jim Taylor's DVD Demystified FAQ Section.

                 

                Hope that helps, and good luck,

                 

                Hunt