Earlier it was stated:
Quote:
The custom profile was set for 720p 4000Kbps @29.97fps
and your Moo0 Video Info shows:
Quote:
[Video]
Codec: H264 (H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10)
Codec Tag: avc1 (0x31637661)
Picture Size: 1280x720 (PAR 1:1, DAR 16:9)
Frame Rate: 2.44 fps
Bit Rate: 3,583 kbps
You got an average video bitrate of 3583 kbps vs 4000kpbs specified, not exactly comparable to what you requested. 10+% difference at these lower bitrates can be noticeable in picture quality to many. Since you posted Moo0 Video Info, here is the info for a replicate of your custom profile and movie duration.
File Name: GGR_test.mp4
File Size: 3.49 GB
[Container]
Format: MOV,MP4,M4A,3GP,3G2,MJ2 (QuickTime / MOV)
Duration: 02:00:18.29
Bit Rate: 4,162 kbps
[Metadata]
major_brand: MSNV
minor_version: 16786688
compatible_brands: MSNVisommp42
creation_time: 2016-01-03 15:28:23
[Video]
Codec: H264 (H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10)
Codec Tag: avc1 (0x31637661)
Picture Size: 1280x720 (PAR 1:1, DAR 16:9)
Frame Rate: 29.97 fps
Bit Rate: 4,002 kbps
[Audio]
Codec: AAC (AAC (Advanced Audio Coding))
Channels: Stereo
Sample Rate: 48,000 Hz
Sample Data Format: 32 bits (Float)
Bit Rate: 159 kbps
One will note:
1) Video bitrate is as specified in the custom profile, an average of 4002 kbps, not 10% less
2) Overall file size for 2hr duration is larger as it should be, 3.49GB vs 3.14GB, and reflects video bitrate of 4000 kbps avg
Above data was PD13 Nvidia HA results with older driver. My guess, if you would use CPU encoding on your laptop with the same profile you would get the average video bitrate of 4000 kbps you specified. Yes, very time consuming on that laptop. So, as I had mentioned, since one does not get what you ask for one simply has to always check or view to see if one is happy with the quality. That constant check and see just not value added for me. For some profiles the effect is somewhat small as yours, for other profiles I’ve seen 40-50% change in bitrate and very noticeable on picture quality.
Since it represents a huge time saving for you on the laptop and only a reduced bitrate vs custom specified it surely is an attraction. Maybe with the New Year, the next PD update, the next Nvidia update, things will work as advertised with PD, what a wish!
Jeff