2
votes
2answers
30 views

Does youtube store different video files for different bit rate?

First of all, is the technique called "resampling" ? Does youtube make live resampling for every user ? Isn't it too cpu costly ? So far what i know about codecs is that it has to go through many ...
2
votes
1answer
12 views

Mp4 Video Container and the Codecs use with it

I have started to learn about mp4 file format, and I just learned that mp4 is nothing but just a container that defines the structure of the video file, and that it has different codes inside it for ...
1
vote
1answer
49 views

Why does compressor output 960x540 when frame size is specified “up to 1280x720”?

Is there any way to produce output video at 1280x720 resolution using the "Apple Devices HD (Most Compatible)" setting in Compressor? When I specify a frame size of "up to 1280x720", the output ...
3
votes
1answer
36 views

How does one recover a video stream with missing headers?

I have some video files which were stored with the format headers in separate files. Unfortunately, the disk crashed, and the header information has been lost. I still have large chunks of stream ...
0
votes
2answers
585 views

Youtube convert my video on bad quality

I have some problem with video and its representation on youtube. When I upload video which was encoded with MPEG4 or H.264 codec, I get bad quality video after youtube processing. What is this ...
1
vote
1answer
45 views

Clear and informative tutorial on video file formats

...I think I will want to make a tutorial that covers video file formats, and their relationship to video codecs. There seems to always be a lot of confusion around these topics for emerging media ...
1
vote
2answers
59 views

Where does the 'extra' data come from when transcoding video?

This is something I've never quite understood, but have always wondered. Forgive my basic knowledge here, but I've tried to research this without a specific answer as to what is going on. When I ...
1
vote
2answers
865 views

What compression should I use for archiving VHS tapes to HDD?

What do you recommended for capturing VHS for archiving on a HDD? Will DV PAL codec do? H264 at high quality? (I'm PAL over here btw). I want to retain the quality, but at the same time I don't want ...
2
votes
1answer
54 views

Retaining quality while re-encoding with same codec

Just say I have a bunch of separate clips (DV stream format .dv), and I join them using Quicktime 7. If I then export them out as a new .dv file, am I losing any quality? Is there a loss in quality ...
1
vote
1answer
1k views

poor quality export of still images from premiere

This is the actual source image to a video track in Premiere (a PNG): With no resizing whatsoever, and .flv output, this is a resultant frame from the exported video: How could I improve the ...
2
votes
2answers
3k views

Adobe After Effects MP4 Export Issue

I'm trying to export a composition from Adobe After Effects. My Comp is 1280x720, and ideally I'd export with an mp4 container, and h264 video codec. Problem is, After Effects is giving me a PAR ...
3
votes
1answer
32 views

settings for editing in cs4

What initial setting should I be using in Premiere CS4 if I shot video on a Samsung HMX-q10 camera but shot in standard definition? When I tried DV NTSC the video looks very bad, like it's somewhat ...
8
votes
2answers
2k views

What codec will my Youtube uploads be output in and what codec should I use to upload?

Related to What codecs/formats are appropriate for full motion video recording for youtube? I'm wondering exactly how I can expect Youtube to handle my videos. I know they have a rather zealous ...
5
votes
1answer
371 views

What codecs/formats are appropriate for full motion video recording for youtube?

I'm recording video game footage via lossless methods, after which I need to compress them and upload them to youtube. I'm not sure which format and/or codecs are best for this. I've been ...
6
votes
2answers
689 views

I changed the .mp4 extension of my video to .mpg and it still opens and plays fine (in VLC and in Windows Media Player). Why is this so?

I'm uploading a file to an external system that accepts only mpg or mpeg extension files. I had a mp4 file so I changed the mp4 extension to mpg and I was able to upload the file into the system. ...
5
votes
2answers
223 views

What video codecs can provide “adaptive quality”?

Background: I am trying to compress lossless bluray tracks to a more storage friendly size without a huge loss in quality. What I've been doing thus far: Exploring compression options with ffmpeg. ...
4
votes
2answers
637 views

Automatic conversion/encode video for Video On Demand streaming

I need an automatic solution to convert video clips for html5 (mp4/x264, webm/vp8) and flash (mp4/x264) video-on-demand streaming. For a site like Youtube, just much smaller. The input files are ...
2
votes
4answers
187 views

How to figure out video format by video sample?

I have a video file (30Mb) in some unknown format, hex dump of its header looks like this: 0000000 78 55 52 30 09 10 02 0a 00 00 09 09 22 93 00 39 0000020 00 00 00 00 bd 09 ...
4
votes
3answers
123 views

Looking For A Video Editor that will maintain the codecs of the original source video

Im trying to test various video/audio codecs by editing clips from larger videos that have the codecs I want to test. Although every video editor i have tried changes the codecs of the clips i create ...
1
vote
1answer
420 views

Which decoder allows for fast seeking or how to configure k-lite codec pack?

I am using mostly Haaly Media Splitter for input and ffdshow for decoding (libavcodec). Actually I am ok with the default profile 7 installation of k-lite codec pack. At the moment I have the default ...
0
votes
2answers
155 views

What could be causing these strange MP4 video playback corruptions on some machines?

(Note: the video is a screencast hence the desktop icons, that's not actually the desktop of the machine having the error.) We are using JWPlayer, and we rarely have this issue, but on it is ...
3
votes
1answer
385 views

Very Good Free Lossless/Lossy Video Encoding For Editing on Windows 7 (regarding fraps recordings)

I am looking for a very good method to encode video recorded with fraps in 1080p into an intermediate format which I can edit in Avid Studio. Most video files load up into Avid, as far as I know, but ...
5
votes
2answers
4k views

Best Lossless Video Encoder For Editing

I'm looking for a good video encoder to compress HD files for editing within Sony Vegas Pro and Adobe After Effects. What video codec would provide the fastest possible encoding and decoding? Also, ...
6
votes
2answers
5k views

The ProRes of Premiere Pro?

I'm going to be editing more and more DSLR videos, most notably music videos for my band as we start releasing singles and want to know if there is an intermediate format for both cutting and ...