Set bitrate limit?
Moderators: Víctor Paredes, Belgarath, slowtiger
Set bitrate limit?
Hello all! For my current project I'm working in hd1080. Today I tried to export the animation (19seconds with no music or sounds), mov file compression mp4, and It came up a 121mb file, bitrate 53756kbps. Do I have to worry about that? Ok my pc can't play the file but it is very old, but the destination of the video is a contest so I want to keep the better quality possible, at the same time I want to avoid any problems, like limping playback or similar...Do I have to think about bitrate limit? Are there common values for hd videos?
Sounds big to me.
Exporting to mp4 (which is not the same as the codec mpeg-4) I can only do from FinalCut, which has the appropriate controls for it. When I made my 5:30 min film in 720p, it was about 220 MB big. I remembered I rendered a test sequence again and again with different settings to judge the quality and get a small file.
Bear in mind that a file that large that you can't play it may be impossible to be played by the jury as well.
Exporting to mp4 (which is not the same as the codec mpeg-4) I can only do from FinalCut, which has the appropriate controls for it. When I made my 5:30 min film in 720p, it was about 220 MB big. I remembered I rendered a test sequence again and again with different settings to judge the quality and get a small file.
Bear in mind that a file that large that you can't play it may be impossible to be played by the jury as well.
I'd suggest exporting as a .png or .tga image sequence. Do whatever post work you need on that, and then export the final to whatever format you need. That avoids the QT wrapper, and any recompression issues.
What format do you need for the contest? (I'd guess mp4, since that's what you're using?) How do you submit it? ie: on disk, upload to their site, etc.? There may be some limitations built-in to delivery format that you'll need to deal with. What's your frame rate?
for MP4, (depending on compression scheme-ie H-264 is probably the better variant)- 15 Mbits/sec should be playable in most modern computers, and probably give you a reasonable image. 53 Mb/s is a little much. I'd guess most common laptops will decompress/play up to 30 Mb/s, but that's probably pushing it.
Images in use have something to do with it too. If you have simple colors, and shapes, you need to treat it different than you would if it were complex photographs.
-dm
What format do you need for the contest? (I'd guess mp4, since that's what you're using?) How do you submit it? ie: on disk, upload to their site, etc.? There may be some limitations built-in to delivery format that you'll need to deal with. What's your frame rate?
for MP4, (depending on compression scheme-ie H-264 is probably the better variant)- 15 Mbits/sec should be playable in most modern computers, and probably give you a reasonable image. 53 Mb/s is a little much. I'd guess most common laptops will decompress/play up to 30 Mb/s, but that's probably pushing it.
Images in use have something to do with it too. If you have simple colors, and shapes, you need to treat it different than you would if it were complex photographs.
-dm
Thanks for the answer. I will upload the video to their site, and they will use a youtube channel then. So formats are those related. I'm working at 25fps. I finished the animation and the total time is 49secs with music and sound effects too. It's quite simple, a retro cartoon style, with flat colors and simple shapes.
If I can ask you, because my pc is very very old and deadline is on 15th, I'm switching the video at dvpal resolution (rendering is very slow in hd). what format, compression and bitrate do you suggest me?
In case of victory (mmh...hard, but want to believe in that chance anyway) I will have to send a physical support for promotional use (tv, hdtv, webtv) so information about hd still interest me.
Thanks in advance
If I can ask you, because my pc is very very old and deadline is on 15th, I'm switching the video at dvpal resolution (rendering is very slow in hd). what format, compression and bitrate do you suggest me?
In case of victory (mmh...hard, but want to believe in that chance anyway) I will have to send a physical support for promotional use (tv, hdtv, webtv) so information about hd still interest me.
Thanks in advance
h.264 25 fps, Progressive (NOT interlaced) for best quality YouTube. Do NOT letterbox.
What about rendering out at 720P instead of 1080? Also hidef, but less resolution to worry about.
http://www.youtube.com/handbook_popup_p ... estformats
If you win, you could deliver in h.264 with low compression. Unless they have a preferred format. More on this later. Busy now.
good luck.
What about rendering out at 720P instead of 1080? Also hidef, but less resolution to worry about.
http://www.youtube.com/handbook_popup_p ... estformats
If you win, you could deliver in h.264 with low compression. Unless they have a preferred format. More on this later. Busy now.
good luck.