bellsbells Posted May 15, 2012 Share Posted May 15, 2012 Hi all. I hacked my GH2 (Vanilla) and am filming in Creative Movie Mode (24p/24H). Yesterday I made a test shot which VideoSpec indicated was max bitrate 43.9, average 39. After shooting footage all day today with the same settings, I just analyzed my shots and found that though the max bitrate was still 43.9, the average was about 10-15 tops! WTF?! My SD card is a class 10 Sandisk (same as I used yesterday). What can explain why I'm getting such poor bitrates? Quote Link to comment Share on other sites More sharing options...
bellsbells Posted May 16, 2012 Author Share Posted May 16, 2012 Please, anyone? I am shooting a documentary and I need an answer ASAP! Quote Link to comment Share on other sites More sharing options...
Administrators Andrew Reid Posted May 16, 2012 Administrators Share Posted May 16, 2012 Don't worry about this. It is variable bitrate by nature (VBR) so only uses the amount of data it needs for the scene. Doesn't look like your shots are stressing the camera too much so you might want to try using the higher quality 88Mbit EOSHD Unified Patch. Quote Link to comment Share on other sites More sharing options...
bellsbells Posted May 16, 2012 Author Share Posted May 16, 2012 Thanks Andrew—I think I will upgrade to Unified to see if that improves the bitrate. I'll report back once I've done so. Quote Link to comment Share on other sites More sharing options...
bellsbells Posted May 16, 2012 Author Share Posted May 16, 2012 OK, I re-applied the hack with Unified and made a test shot of around 30 seconds to compare to a shot of the same length from when I was using Vanilla. I used VideoSpec to compare the two files, and here's what I get (both shooting Cinema 24p/24H): Vanilla: max 43.4 Mbps / avg. 19 Mbps / file size approx. 80 MB Unified: max 88.8 Mbps / avg. 66.9 Mbps / file size approx. 300 MB So this is kind of nuts! The file is more than 3x the size when using Unified. Jeez, I don't know what to do now, since at that rate Unified will take up more disk space than I would like to dedicate. Quote Link to comment Share on other sites More sharing options...
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