New Website: H.264info.com

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  • admin
    Administrator
    • Nov 2001
    • 8927

    New Website: H.264info.com

    A friend of mine (with some help from yours truly, of course) has just started a new mini website to promote and provide help for H.264 video:

    H264info.com's aim is to promote the H.264 format, provide downloads for H.264 and to provide simple instructions on how to use H.264. Please use the navigation links above to browse the content on our website. To download the H264info software, which is not related to this website, please refer to this page or this page


    It's a nice little website with most of the information you'll need to play, make and edit H.264 files, plus downloads for frequently used software and links to H.264 demo clips.

    It's a good place to start if you don't have a clue what H.264 is and how to get it to play on your computer.
    Visit Digital Digest and dvdloc8.com, My Blog
  • Chewy
    Super Moderator
    • Nov 2003
    • 18971

    #2
    I downloaded the bourne ult trailer clip, 80 MB/ 1.5 minutes
    simple math of x by 60 to get a 90 min runtime would yield a 4.8 gig file size
    for this mp4 file
    hardly an example of smaller file size for improved quality?

    as bugs would say "what's up doc?"

    Comment

    • admin
      Administrator
      • Nov 2001
      • 8927

      #3
      But it's 1080p though ...
      Visit Digital Digest and dvdloc8.com, My Blog

      Comment

      • Chewy
        Super Moderator
        • Nov 2003
        • 18971

        #4
        You would need to burn to dual layer to get it on a disk and play on an xbox?

        Comment

        • Chewy
          Super Moderator
          • Nov 2003
          • 18971

          #5
          as it aims in offering similar video quality in half the size of the formats mentioned before.(MPEG-2, DivX, XviD)


          compared to mpeg2 and considering the quality I can see this statement but
          at 6x the file size for xvid I don't buy it

          Comment

          • admin
            Administrator
            • Nov 2001
            • 8927

            #6
            Or you can stream it from a PC/UPnP storage device.

            I used about 7 Mbps for the trailer - if you limit the resolution to 720p, you can go down to 5 Mbps and fit about 120 minutes on a single layer disc. Of course, we're talking about fairly high quality encodes - you can get away with a much lower bitrate if you don't need 100% quality. If it was encoded in MPEG-2, it would probably need at least 15 Mbps, 20 to be safe, meaning a 90 minute movie would be 13.5 GB.

            At normal resolutions, H.264 is about 20% more efficient than DivX/XviD, so you can store a 640x*** movie on a single CD with acceptable quality.

            The problem now is encoding speed, as it's really slow unless you have quad-core going (and even then, it's still slow).
            Last edited by admin; 18 May 2007, 06:27 PM.
            Visit Digital Digest and dvdloc8.com, My Blog

            Comment

            • admin
              Administrator
              • Nov 2001
              • 8927

              #7
              Originally Posted by Chewy
              http://www.dvd-guides.com/content/view/143/59/

              compared to mpeg2 and considering the quality I can see this statement but
              at 6x the file size for xvid I don't buy it
              That statement is wrong though (I think it refers to MPEG-2, not DivX/XviD, since DivX/XviD and MPEG-2 are in a totally different class). You might say that DivX/XviD/MPEG-4 ASP was the successor to MPEG-2 , and that H.264/MPEG-4 AVC is the successor to MPEG-4 ASP.

              Doom9's codec shootout is a good guide - it's dated 2005, but even back then, H.264 was the winner compared to DivX/XviD:



              Also, don't be completely shocked if DivX/XviD adopts MPEG-4 AVC sometime in the future.
              Visit Digital Digest and dvdloc8.com, My Blog

              Comment

              • Chewy
                Super Moderator
                • Nov 2003
                • 18971

                #8
                well at least showtime2 and MP10 played it beautifully, too bad my monitor wouldn't do the 1920x816

                Comment

                • admin
                  Administrator
                  • Nov 2001
                  • 8927

                  #9
                  The Bourne Ultimatum clip uses the Baseline profile, which won't require such a powerful processor. The High Profile encodes I did afterwards are a bit more demanding (but you can squeeze a bit more out of the same bitrate) - I can't play them at full frames on my P4 3.2 GHz - I get maybe 10 to 15 FPS.

                  The Xbox 360 plays it without a hint of a frame drop, thanks to the ATI H.264 decoders and the GPU acceleration - all the latest DX10 graphics cards (with AVIVO HD or PureVideo HD) should have H.264 accelerated decoding, so even my old P4 3.2 GHz will play High Profile encoding without too much trouble (assuming I find a way to fit the PCI-E card into my AGP slot ).
                  Last edited by admin; 18 May 2007, 06:41 PM.
                  Visit Digital Digest and dvdloc8.com, My Blog

                  Comment

                  • Chewy
                    Super Moderator
                    • Nov 2003
                    • 18971

                    #10
                    are there any high profile clip samples?

                    Comment

                    • admin
                      Administrator
                      • Nov 2001
                      • 8927

                      #11
                      I will upload some soon, possibly by tomorrow. I'll post the link here when I do.
                      Visit Digital Digest and dvdloc8.com, My Blog

                      Comment

                      • admin
                        Administrator
                        • Nov 2001
                        • 8927

                        #12
                        Try this 1080p trailer one (this is actually an old one that I made some time ago, not Xbox 360 compatible):



                        The 10-15 FPS figure I mentioned may not have been accurate - I think there was something wrong with that particular clip. You should get close to full framerate on P4 2.8 GHz or better CPUs (with no GPU acceleration), but you'll get 100% CPU utilization. My P4 3.2 GHz will just about play the above 1080p clip with a few frames being skipped here and there.

                        A Xbox 360 compatible 1080p clip (The Simpsons Movie again) has been added to h264info.com:

                        This page contains some sample H.264 clips you can download and use, courtesy of Digital Digest. You can find more H.264 HD clips in Digital Digest's Movie Downloads Section. Latest Trailers: [iframe http://www.digital-digest.com/movies/h264info_iframe.php 690px 280px] Sample Clips/Trailers: Gravity - 2K (2048x858) Trailer Download Link: gravity_2k-trailer.zip (335 MB) Video Type: 2048x858 (2K), 23.967 FPS, Level 4.1


                        This one should play well even on a P4 2.8 GHz, although it will be hitting 100% CPU utilization quite often. When the decoders (ffdshow) gets further optimized, performance will increase.
                        Visit Digital Digest and dvdloc8.com, My Blog

                        Comment

                        • Chewy
                          Super Moderator
                          • Nov 2003
                          • 18971

                          #13
                          my computer(oc'd amd64/3000) and ati 9600 choked on the first trailer, dropping frames? then freezing vid later

                          the second did OK I guess, probably need a better video card
                          Last edited by Chewy; 19 May 2007, 12:49 AM.

                          Comment

                          • admin
                            Administrator
                            • Nov 2001
                            • 8927

                            #14
                            Your computer should do better than that I think (it's the CPU that matters most) - try the latest ffdshow version (clsid or xxl nightly builds) if you haven't done so already:

                            Visit Digital Digest and dvdloc8.com, My Blog

                            Comment

                            • Chewy
                              Super Moderator
                              • Nov 2003
                              • 18971

                              #15
                              I am playing them with showtime(part of nero6), ffdshow is pretty up to date,
                              I only noticed some slight pausing with the second one(may have been my imagination) cpu went from 40-100% with scene change

                              the first clip, there was something definitely wrong with it

                              how do you get the fps?

                              Comment

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