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pup500
pup500
Known Participant
August 5, 2009
Answered

Flash Media Encoder .f4v file larger than .avi after conversion

  • August 5, 2009
  • 1 reply
  • 1956 views

This is my first time using Flash Media Encoder.

I converted a 168 MB .AVI video to .F4V and the resultant file is 302 MB.

Is this normal?

What could I have done wrong?

    This topic has been closed for replies.
    Correct answer

    I'm not familiar with CamStudio's compression settings, but it sounds to me like the bitrate of the AVI is lower than your target bitrate for the new encoding. If that's the case, it makes sense that the new file is larger.

    It would be better to start out with a high quality AVI if possible. Remember that you're compressing again when you transcode the file, so in order to maintain the quality of the source, you have no choice but to encode at a very high bitrate. If you start out with a high quality source, you can reduce the bitrate when encoding the flv/f4v

    1 reply

    A
    Anonymous
    August 5, 2009

    Are you encoding to a bitrate higher than that of the AVI file?

    pup500
    pup500Author
    Known Participant
    August 5, 2009

    I can't check too much right now because the program is encoding.

    But, I can see one file's bitrate is set to "VBR, 1500.00 [kbps]"

    And my original AVI was from a screen capture vid using CamStudio (pretty low quality stuff, there).

    Does that bitrate sound high?

    A
    Anonymous
    Correct answer
    August 5, 2009

    I'm not familiar with CamStudio's compression settings, but it sounds to me like the bitrate of the AVI is lower than your target bitrate for the new encoding. If that's the case, it makes sense that the new file is larger.

    It would be better to start out with a high quality AVI if possible. Remember that you're compressing again when you transcode the file, so in order to maintain the quality of the source, you have no choice but to encode at a very high bitrate. If you start out with a high quality source, you can reduce the bitrate when encoding the flv/f4v

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