On 05/13/2010 03:26 AM, James Cameron wrote: > We discussed this briefly in team meeting this morning ... Record is > writing an uncompressed stream to SD, before then compressing it in the > "Save" step once the video recording is stopped. (I could be wrong). > > This means that no matter what the size of the buffer memory, if the > data rate from the camera exceeds the rate at which we can write to SD, > there will be skips once a recording is long enough to fill the buffer. ... > So we determine the data rate by choosing height, width, and frame rate > from the camera. We determine the maximum rate according to the choice > of SD media.
If I understand correctly, Record does compress the video on the fly. It's the audio that it writes uncompressed to disk for later compression and muxing. I don't know at what quality it performs audio recording, but it might be as low as 32 KB/s uncompressed. --Ben
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