VideoHelp Forum


Try StreamFab Downloader and download from Netflix, Amazon, Youtube! Or Try DVDFab and copy Blu-rays! or rip iTunes movies!


Try StreamFab Downloader and download streaming video from Youtube, Netflix, Amazon! Download free trial.


+ Reply to Thread
Results 1 to 16 of 16
Thread
  1. Member
    Join Date
    Nov 2013
    Location
    Australia
    Search Comp PM
    Hi guys

    Ok I wanted to get some information from you guys about my settings as I am not sure exactly what a good GOP will be for me even though I have read extensively on this. I wanted to ensure I am getting the absolute BEST out of my current setup.

    Ok Background info below - thanks for reading guys .

    I run a very fast machine which can pretty much handle anything in terms of editing & recording etc, I run an i7 at 4.9ghz stable, I have two GTX 770 4gb cards, I use an SSD 1tb for recording, you can check out some of my stuff at my Youtube channel 'inspectagame'

    I will provide media info for the Raw .AVI file, and the rendered final footage for upload to youtube.

    So anyway I record gameplay footage with the highest quality in mind, I use an Alto Edge Mic for my commentary and a Logitech C920 Webcam for my PIP. With all games I record them with an in-game resolution of 1920 x 1080 at 60 or 100 fps.

    I use the best Game Recording software I have ever used which is Litecam HD, lag is practically nil and it allows me to record up to 100fps, the maximum I will be using for Youtube will be 60fps as they are introducing that feature shortly but currently all videos are rendered out to 30 fps.

    In Litecam I use ffdshow and record using the uncompressed avi method, please see the media info from one such raw recording.

    +++++++++++++++++++++++++++ RAW RECORDED FOOTAGE MEDIA INFO +++++++++++++++++++++++++++

    Format : AVI
    Format/Info : Audio Video Interleave
    Format profile : OpenDML
    File size : 15.9 GiB
    Duration : 1mn 57s
    Overall bit rate : 1 163 Mbps

    Video
    ID : 0
    Format : YUV
    Codec ID : YUY2
    Codec ID/Info : YUV 4:2:2 as for UYVY but with different component ordering within the u_int32 macropixel
    Duration : 1mn 56s
    Bit rate : 1 167 Mbps
    Width : 1 280 pixels
    Height : 720 pixels
    Display aspect ratio : 16:9
    Frame rate : 100.000 fps
    Color space : YUV
    Chroma subsampling : 4:2:2
    Compression mode : Lossless
    Bits/(Pixel*Frame) : 12.661
    Stream size : 15.8 GiB (100%)

    Audio
    ID : 1
    Format : PCM
    Format settings, Endianness : Little
    Format settings, Sign : Signed
    Codec ID : 1
    Duration : 1mn 57s
    Bit rate mode : Constant
    Bit rate : 1 536 Kbps
    Channel(s) : 2 channels
    Sampling rate : 48.0 KHz
    Bit depth : 16 bits
    Stream size : 21.4 MiB (0%)
    Alignment : Aligned on interleaves
    Interleave, duration : 988 ms (98.77 video frames)

    ++++++++++++++++++++++++++++++++++++++++++++++++++ ++++++++++++++++++++++++++++++++

    Ok so above is the footage that has been recorded, ok so I will most likely record at 60fps for when youtube introduces the 60fps uploading. For now I render out to 30 fps, below you will find the media info of my rendered footage at 60fps and then 30 fps.


    +++++++++++++++++++++++++++ RENDERED FOOTAGE @ 60 FPS MEDIA INFO ++++++++++++++++++++++++

    General
    ID : 0 (0x0)
    Complete name : N:\Produce.m2ts
    Format : MPEG-TS
    File size : 122 MiB
    Duration : 1mn 56s
    Overall bit rate mode : Variable
    Overall bit rate : 8 777 Kbps
    Maximum Overall bit rate : 8 756 Kbps

    Video
    ID : 4113 (0x1011)
    Menu ID : 1 (0x1)
    Format : AVC
    Format/Info : Advanced Video Codec
    Format profile : High@L3.2
    Format settings, CABAC : Yes
    Format settings, ReFrames : 2 frames
    Format settings, GOP : M=3, N=13
    Codec ID : 27
    Duration : 1mn 56s
    Bit rate mode : Variable
    Bit rate : 8 085 Kbps
    Maximum bit rate : 8 500 Kbps
    Width : 1 280 pixels
    Height : 720 pixels
    Display aspect ratio : 16:9
    Frame rate : 60.000 fps
    Color space : YUV
    Chroma subsampling : 4:2:0
    Bit depth : 8 bits
    Scan type : Progressive
    Bits/(Pixel*Frame) : 0.146
    Stream size : 113 MiB (92%)

    Audio
    ID : 4352 (0x1100)
    Menu ID : 1 (0x1)
    Format : AC-3
    Format/Info : Audio Coding 3
    Mode extension : CM (complete main)
    Format settings, Endianness : Big
    Codec ID : 129
    Duration : 1mn 56s
    Bit rate mode : Constant
    Bit rate : 256 Kbps
    Channel(s) : 2 channels
    Channel positions : Front: L R
    Sampling rate : 48.0 KHz
    Bit depth : 16 bits
    Compression mode : Lossy
    Delay relative to video : -1ms
    Stream size : 3.57 MiB (3%)

    ++++++++++++++++++++++++++++++++++++++++++++++++++ ++++++++++++++++++++++++++++++++

    30 fps media info below

    +++++++++++++++++++++++++++ RENDERED FOOTAGE @ 30 FPS MEDIA INFO ++++++++++++++++++++++++

    General
    ID : 0 (0x0)
    Complete name : N:\Produce2.m2ts
    Format : MPEG-TS
    File size : 112 MiB
    Duration : 1mn 56s
    Overall bit rate mode : Variable
    Overall bit rate : 8 050 Kbps
    Maximum Overall bit rate : 8 256 Kbps

    Video
    ID : 4113 (0x1011)
    Menu ID : 1 (0x1)
    Format : AVC
    Format/Info : Advanced Video Codec
    Format profile : High@L3.1
    Format settings, CABAC : Yes
    Format settings, ReFrames : 2 frames
    Format settings, GOP : M=3, N=13
    Codec ID : 27
    Duration : 1mn 56s
    Bit rate mode : Variable
    Bit rate : 7 394 Kbps
    Maximum bit rate : 8 000 Kbps
    Width : 1 280 pixels
    Height : 720 pixels
    Display aspect ratio : 16:9
    Frame rate : 30.000 fps
    Color space : YUV
    Chroma subsampling : 4:2:0
    Bit depth : 8 bits
    Scan type : Progressive
    Bits/(Pixel*Frame) : 0.267
    Stream size : 103 MiB (92%)

    Audio
    ID : 4352 (0x1100)
    Menu ID : 1 (0x1)
    Format : AC-3
    Format/Info : Audio Coding 3
    Mode extension : CM (complete main)
    Format settings, Endianness : Big
    Codec ID : 129
    Duration : 1mn 56s
    Bit rate mode : Constant
    Bit rate : 256 Kbps
    Channel(s) : 2 channels
    Channel positions : Front: L R
    Sampling rate : 48.0 KHz
    Bit depth : 16 bits
    Compression mode : Lossy
    Delay relative to video : 16ms
    Stream size : 3.56 MiB (3%)

    ++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++++++++++++++++++

    Ok so you get the gist, you can see that I spare no expense with the final bitrate for uploading to youtube etc as I want the quality to be there, ok so I Edit and Render my final videos above using Cyberlink Power Director 12 (brillaitn program) ok so I have included the actual profile I use for 30 and 60 fps rendering, again you will get the gist of the settings for my 30 & 60 fps profiles.

    +++++++++++++++++++++++++++ 60 FPS RENDERING SETTINGS PROFILE USED ++++++++++++++++++++


    &
    <Class>AVCHD
    <Name>YOUTUBE 720P @ 8000 KBS - 60 FPS
    <Description>
    YOUTUBE 720P @ 8000 KBS - 60 FPS
    <Output FileName>
    <DescID>16697
    <NameID>16696
    <Group>2
    <File Format Class>13
    <Video Format Class>8
    <Audio Format Class>8
    <Stream Flag>3
    <Field Order>0
    <Attribute>10183
    <Video BitRate>8000000
    <Min BitRate>4000000
    <Max BitRate>8500000
    <Video Quality>0
    <Video Width>1280
    <Video Height>720
    <Frame Rate>60.000000
    <Profile Level>65380
    <Pattern>IBBPBBPBBPBBP
    <Pre Processing>0
    <Resize>1
    <Flip Video>0
    <Speed Quality Indicator>6
    <Interlacing>0
    <Encoder Mode>0
    <App Type>2
    <Dynamic GOP>0
    <Deblock>1
    <EntryMode>1
    <Encoder Type>1
    <Audio Layer>2
    <Audio Mode>2
    <Audio BitRate>256000
    <Audio Channels>2
    <Audio SamplesPerSec>1
    <Audio BitsPerSample>1
    <Misc>0
    <SamplesPerFrame>0
    &&


    ++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++++++++++++++++++

    Ok and lastly below is the 30 fps rendering profile used

    +++++++++++++++++++++++++++ 30 FPS RENDERING SETTINGS PROFILE USED ++++++++++++++++++++

    &
    <Class>AVCHD
    <Name>YOUTUBE 720P @ 7500 KBS - 30 FPS
    <Description>
    YOUTUBE 720P @ 7500 KBS - 30 FPS
    <Output FileName>
    <DescID>16697
    <NameID>16696
    <Group>2
    <File Format Class>13
    <Video Format Class>8
    <Audio Format Class>8
    <Stream Flag>3
    <Field Order>0
    <Attribute>10183
    <Video BitRate>7500000
    <Min BitRate>3750000
    <Max BitRate>8000000
    <Video Quality>0
    <Video Width>1280
    <Video Height>720
    <Frame Rate>30.000000
    <Profile Level>65380
    <Pattern>IBBPBBPBBPBBP
    <Pre Processing>0
    <Resize>1
    <Flip Video>0
    <Speed Quality Indicator>6
    <Interlacing>0
    <Encoder Mode>0
    <App Type>2
    <Dynamic GOP>0
    <Deblock>1
    <EntryMode>1
    <Encoder Type>1
    <Audio Layer>2
    <Audio Mode>2
    <Audio BitRate>256000
    <Audio Channels>2
    <Audio SamplesPerSec>1
    <Audio BitsPerSample>1
    <Misc>0
    <SamplesPerFrame>0
    &&

    ++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++++++++++++++++++

    Ok so guys these are all my settings, I wanted to ask you guys about the GOP settings ad the Bitrate settings also and of course anything else that you guys may see as not as efficient as what it could be, I have spent a long time getting these settings but I believe my GOp could be better as when there is high motion my face etc as an example goes quite blurry at some stages and I feel I could be doing a lot better with the GOP.

    I am recording out to NTSC which I know makes a difference in the frames available so I have been , I do understand that youtube also has a closed GOP.

    I heard that GOPS with similar structures like IPPPPPIPPPPPIPPPPP as an 18 Frame GOP, I am currently just using the default one at the moment as you can see above or this one (IBBPBBPBBPBBP) you can also see the details in the produced vids are here:

    Format profile : High@L3.1
    Format settings, CABAC : Yes
    Format settings, ReFrames : 2 frames
    Format settings, GOP : M=3, N=13

    I also can see the minimum bit-rate being used, I would like to increase the minimum if it will help. Ok guys so sorry for the long winded post but I would like some opinions from all you experts.

    So in summary what I am asking is:

    1. What other GOP structures could I try for 30 & 60 fps videos ?
    2. Can I increase the minimum bitrate used and will it help?
    3. Is the overall bitrate I use ok ?
    4. Is there any other settings I could use which would better my overall quality ?

    Many thanks in advance all, regards Mat
    Quote Quote  
  2. Just make a decent looking output. YouTube will reencode it anyway.
    Quote Quote  
  3. Originally Posted by mdexter View Post
    1. What other GOP structures could I try for 30 & 60 fps videos ?
    Eliminating b frames will require more bitrate.

    Originally Posted by mdexter View Post
    2. Can I increase the minimum bitrate used and will it help?
    You want to decrease the minimum bitrate, not increase it. That allows more bitrate to be taken from shots that don't need it and given to shots that do need it.

    Originally Posted by mdexter View Post
    3. Is the overall bitrate I use ok ?
    Probably not since:

    Originally Posted by mdexter View Post
    when there is high motion my face etc as an example goes quite blurry at some stages
    Originally Posted by mdexter View Post
    4. Is there any other settings I could use which would better my overall quality ?
    Increase the GOP length to 200 or so. That may get you a ~10 percent improvement. Set the min bitrate to 0, the max to at least 2x the average. Go up to level 4.2. A few more reference frames and consecutive b-frames should help a little.
    Last edited by jagabo; 3rd Jul 2014 at 11:50.
    Quote Quote  
  4. Member
    Join Date
    Nov 2013
    Location
    Australia
    Search Comp PM
    Originally Posted by jagabo View Post
    Originally Posted by mdexter View Post
    1. What other GOP structures could I try for 30 & 60 fps videos ?
    Eliminating b frames will require more bitrate.

    Originally Posted by mdexter View Post
    2. Can I increase the minimum bitrate used and will it help?
    You want to decrease the minimum bitrate, not increase it. That allows more bitrate to be taken from shots that don't need it and given to shots that do need it.

    Originally Posted by mdexter View Post
    3. Is the overall bitrate I use ok ?
    Probably not since:

    Originally Posted by mdexter View Post
    when there is high motion my face etc as an example goes quite blurry at some stages
    Originally Posted by mdexter View Post
    4. Is there any other settings I could use which would better my overall quality ?
    Increase the GOP length to 200 or so. That may get you a ~10 percent improvement. Set the min bitrate to 0, the max to at least 2x the average. Go up to level 4.2. A few more reference frames and consecutive b-frames should help a little.
    Hey Gagabo, thanks so so very much ok so when you say gop length to 200 thats the amount of characters I use, for example: IPP thats 3 and IPPPP thats 5 yes?

    Level 4.2 ? ok you have lost me there and in regards to the GOP structure can you give me an example as in what you think I should try, from what I understand of GOP what you are telling me is:

    Gop length 200 more I reference and consecutive B frames, is this an example you would of suggested?


    IBBPBIBBPBIBBPBIBBPBIBBPBIBBPBIBBPBIBBPBIBBPBIBBPB IBBPBIBBPBIBBPBIBBPBIBBPBIBBPBIBBPBIBBPBIBBPBIBBPB IBBPBIBBPBIBBPBIBBPBIBBPBIBBPBIBBPBIBBPBIBBPBIBBPB IBBPBIBBPBIBBPBIBBPBIBBPBIBBPBIBBPBIBBPBIBBPBIBBPB

    If not could you possibly give me an example that I should try?

    Thanks so so very much for replying
    Quote Quote  
  5. GOP length is the distance between I frames. So a 200 frame GOP would look like:

    IBBPBBPBBPBBPBBPBBPBBPBBPBBPBBPBBPBBPBBPBBPBBPBBPB
    BPBBPBBPBBPBBPBBPBBPBBPBBPBBPBBPBBPBBPBBPBBPBBPBBP
    BBPBBPBBPBBPBBPBBPBBPBBPBBPBBPBBPBBPBBPBBPBBPBBPBB
    PBBPBBPBBPBBPBBPBBPBBPBBPBBPBBPBBPBBPBBPBBPIBBPBBP

    I frames are the biggest (typically 5x to 10x the size of B and P frames), B frames are the smallest, and P frames are in between. So the fewer I frames you have the better the compression. On the other hand, the fewer I frames you have the harder the video is to edit. And some devices don't support very long GOPs (Blu-ray for example). The more B frames you have the better the compression. But B frames are lower quality so if you have too many consecutive B frames you'll start noticing quality pumping.
    Quote Quote  
  6. Member
    Join Date
    Nov 2013
    Location
    Australia
    Search Comp PM
    Ohh awesome, ok I am going to give this a try and post back thanks so so very much
    Quote Quote  
  7. Member
    Join Date
    Nov 2013
    Location
    Australia
    Search Comp PM
    Originally Posted by jagabo View Post
    GOP length is the distance between I frames. So a 200 frame GOP would look like:

    IBBPBBPBBPBBPBBPBBPBBPBBPBBPBBPBBPBBPBBPBBPBBPBBPB
    BPBBPBBPBBPBBPBBPBBPBBPBBPBBPBBPBBPBBPBBPBBPBBPBBP
    BBPBBPBBPBBPBBPBBPBBPBBPBBPBBPBBPBBPBBPBBPBBPBBPBB
    PBBPBBPBBPBBPBBPBBPBBPBBPBBPBBPBBPBBPBBPBBPIBBPBBP

    I frames are the biggest (typically 5x to 10x the size of B and P frames), B frames are the smallest, and P frames are in between. So the fewer I frames you have the better the compression. On the other hand, the fewer I frames you have the harder the video is to edit. And some devices don't support very long GOPs (Blu-ray for example). The more B frames you have the better the compression. But B frames are lower quality so if you have too many consecutive B frames you'll start noticing quality pumping.
    Ok Jagabo here are my settings in the profile for PowerDirector:

    ++++++++++++++++++++++++++++++++++++++++

    &
    <Class>AVCHD
    <Name>Custom Profile -1
    <Description>
    Custom Profile -1
    <Output FileName>
    <DescID>16697
    <NameID>16696
    <Group>2
    <File Format Class>13
    <Video Format Class>8
    <Audio Format Class>8
    <Stream Flag>3
    <Field Order>0
    <Attribute>10183
    <Video BitRate>7500000
    <Min BitRate>0
    <Max BitRate>15000000

    <Video Quality>0
    <Video Width>1280
    <Video Height>720
    <Frame Rate>30.000000
    <Profile Level>65380
    <Pattern>IBBPBBPBBPBBPBBPBBPBBPBBPBBPBBPBBPBBPBBPB BPBBPBBP
    <Pre Processing>0
    <Resize>1
    <Flip Video>0
    <Speed Quality Indicator>6
    <Interlacing>0
    <Encoder Mode>0
    <App Type>2
    <Dynamic GOP>0
    <Deblock>1
    <EntryMode>1
    <Encoder Type>1
    <Audio Layer>2
    <Audio Mode>2
    <Audio BitRate>256000
    <Audio Channels>2
    <Audio SamplesPerSec>1
    <Audio BitsPerSample>1
    <Misc>0
    <SamplesPerFrame>0
    &&

    ++++++++++++++++++++++++++++++++++++++

    No you can see the GOP is a lot smaller, this is the maximum GOP that worked in PD, any bigger and the application would crash with a ntdll error when I selected that profile.

    So the settings for the actual rendered footage using the profile changes in bold above are:

    ++++++++++++++++++++++++++++++++++++++

    Format : MPEG-TS
    File size : 41.3 MiB
    Duration : 37s 762ms
    Overall bit rate mode : Variable
    Overall bit rate : 9 173 Kbps
    Maximum Overall bit rate : 15.3 Mbps

    Video
    ID : 4113 (0x1011)
    Menu ID : 1 (0x1)
    Format : AVC
    Format/Info : Advanced Video Codec
    Format profile : High@L3.1
    Format settings, CABAC : Yes
    Format settings, ReFrames : 2 frames
    Codec ID : 27
    Duration : 37s 900ms
    Bit rate mode : Variable
    Bit rate : 8 461 Kbps
    Maximum bit rate : 15.0 Mbps

    Width : 1 280 pixels
    Height : 720 pixels
    Display aspect ratio : 16:9
    Frame rate : 30.000 fps
    Color space : YUV
    Chroma subsampling : 4:2:0
    Bit depth : 8 bits
    Scan type : Progressive
    Bits/(Pixel*Frame) : 0.306
    Stream size : 38.2 MiB (93%)

    Audio
    ID : 4352 (0x1100)
    Menu ID : 1 (0x1)
    Format : AC-3
    Format/Info : Audio Coding 3
    Mode extension : CM (complete main)
    Format settings, Endianness : Big
    Codec ID : 129
    Duration : 37s 888ms
    Bit rate mode : Constant
    Bit rate : 256 Kbps
    Channel(s) : 2 channels
    Channel positions : Front: L R
    Sampling rate : 48.0 KHz
    Bit depth : 16 bits
    Compression mode : Lossy
    Delay relative to video : 16ms
    Stream size : 1.16 MiB (3%)

    +++++++++++++++++++++++++++++++++++++++++++++++++

    So yes bitrate is bigger for sure, yes quality is better but is that simply me increasing the maximum bitrate overall?

    ALSO PLEASE NOTE: The Format settings, GOP : M=3, N=13 does not exist at all now as per above, I know it will not be written as M=3, N=13 but the line itself does not appear in the above media info.

    Again many thanks for your help on this Jagabo
    Quote Quote  
  8. Originally Posted by mdexter View Post
    So yes bitrate is bigger for sure, yes quality is better but is that simply me increasing the maximum bitrate overall?
    It's a combination of the higher peak bitrate and the longer GOPs. Did you change the number of reference frames too? Look at the bitrate distribution with MPEG File Bitrate Viewer. You will probably see higher peaks and lower troughs with the new encode.

    Originally Posted by mdexter View Post
    ALSO PLEASE NOTE: The Format settings, GOP : M=3, N=13 does not exist at all now as per above, I know it will not be written as M=3, N=13 but the line itself does not appear in the above media info.
    I have no idea why the program is no longer including that metadata.
    Quote Quote  
  9. Member
    Join Date
    Nov 2013
    Location
    Australia
    Search Comp PM
    Ok these are the best settings I have managed to create so far, I hope they are ok and hopefully they can be improved, ok this is what I got:

    ++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++++++++

    Format : MPEG-TS
    File size : 37.1 MiB
    Duration : 37s 794ms
    Overall bit rate mode : Variable
    Overall bit rate : 8 242 Kbps
    Maximum Overall bit rate : 10.3 Mbps

    Video
    ID : 4113 (0x1011)
    Menu ID : 1 (0x1)
    Format : AVC
    Format/Info : Advanced Video Codec
    Format profile : High@L3.1
    Format settings, CABAC : Yes
    Format settings, ReFrames : 2 frames
    Format settings, GOP : M=3, N=52
    Codec ID : 27
    Duration : 37s 933ms
    Bit rate mode : Constant
    Bit rate : 7 500 Kbps
    Width : 1 280 pixels
    Height : 720 pixels
    Display aspect ratio : 16:9
    Frame rate : 30.000 fps
    Color space : YUV
    Chroma subsampling : 4:2:0
    Bit depth : 8 bits
    Scan type : Progressive
    Bits/(Pixel*Frame) : 0.271
    Stream size : 34.3 MiB (92%)

    Audio
    ID : 4352 (0x1100)
    Menu ID : 1 (0x1)
    Format : AC-3
    Format/Info : Audio Coding 3
    Mode extension : CM (complete main)
    Format settings, Endianness : Big
    Codec ID : 129
    Duration : 37s 920ms
    Bit rate mode : Constant
    Bit rate : 256 Kbps
    Channel(s) : 2 channels
    Channel positions : Front: L R
    Sampling rate : 48.0 KHz
    Bit depth : 16 bits
    Compression mode : Lossy
    Delay relative to video : 16ms
    Stream size : 1.16 MiB (3%)

    ++++++++++++++++++++++++++++++++++++++++++++++++++ ++++++++++++

    OK below is the profile in Power Director

    ++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++



    &
    <Class>AVCHD
    <Name>YOUTUBE 720P @ 7500 KBS - 30 FPS
    <Description>
    YOUTUBE 720P @ 7500 KBS - 30 FPS
    <Output FileName>
    <DescID>16697
    <NameID>16696
    <Group>2
    <File Format Class>13
    <Video Format Class>8
    <Audio Format Class>8
    <Stream Flag>3
    <Field Order>0
    <Attribute>10183
    <Video BitRate>7500000
    <Min BitRate>0
    <Max BitRate>0

    <Video Quality>0
    <Video Width>1280
    <Video Height>720
    <Frame Rate>30.000000
    <Profile Level>65380
    <Pattern>IBBPBBPBBPBBPBBPBBPBBPBBPBBPBBPBBPBBPBBPB BPBBPBBPBBP
    <Pre Processing>0
    <Resize>1
    <Flip Video>0
    <Speed Quality Indicator>6
    <Interlacing>0
    <Encoder Mode>0
    <App Type>2
    <Dynamic GOP>0
    <Deblock>1
    <EntryMode>1
    <Encoder Type>1
    <Audio Layer>2
    <Audio Mode>2
    <Audio BitRate>256000
    <Audio Channels>2
    <Audio SamplesPerSec>1
    <Audio BitsPerSample>1
    <Misc>0
    <SamplesPerFrame>0
    &&

    ++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++++++++++

    Please note the min and max are at zero, but this setting seems to produce good quality, again the M and N is showing but if I go higher with more frames in the GOP then power director crashes.

    This settings eeems to work well, what do you guys think?

    Ohh and a screenie of the bitrate viewer of the same file.
    Image Attached Thumbnails Click image for larger version

Name:	Capture_193.jpg
Views:	1128
Size:	62.8 KB
ID:	26065  

    Quote Quote  
  10. Try using Handbrake to encode your video with x264. Start with the Regular -> High Profile preset. Set the RF value to 18, select constant frame rate. See how the file turns out.
    Quote Quote  
  11. Member
    Join Date
    Nov 2013
    Location
    Australia
    Search Comp PM
    Ok great quality here but I am worried about the file size and the length, it seems too big for the length, what do you think?

    ++++++++++++++++++++++++++++++++++++++++++++++++++ ++++++++++++++

    Format : MPEG-TS
    File size : 41.5 MiB
    Duration : 37s 794ms
    Overall bit rate mode : Variable
    Overall bit rate : 9 222 Kbps
    Maximum Overall bit rate : 20.3 Mbps

    Video
    ID : 4113 (0x1011)
    Menu ID : 1 (0x1)
    Format : AVC
    Format/Info : Advanced Video Codec
    Format profile : High@L3.2
    Format settings, CABAC : Yes
    Format settings, ReFrames : 2 frames
    Codec ID : 27
    Duration : 37s 933ms
    Bit rate mode : Variable
    Bit rate : 8 508 Kbps
    Maximum bit rate : 20.0 Mbps
    Width : 1 280 pixels
    Height : 720 pixels
    Display aspect ratio : 16:9
    Frame rate : 30.000 fps
    Color space : YUV
    Chroma subsampling : 4:2:0
    Bit depth : 8 bits
    Scan type : Progressive
    Bits/(Pixel*Frame) : 0.308
    Stream size : 38.5 MiB (93%)

    Audio
    ID : 4352 (0x1100)
    Menu ID : 1 (0x1)
    Format : AC-3
    Format/Info : Audio Coding 3
    Mode extension : CM (complete main)
    Format settings, Endianness : Big
    Codec ID : 129
    Duration : 37s 920ms
    Bit rate mode : Constant
    Bit rate : 256 Kbps
    Channel(s) : 2 channels
    Channel positions : Front: L R
    Sampling rate : 48.0 KHz
    Bit depth : 16 bits
    Compression mode : Lossy
    Delay relative to video : 16ms
    Stream size : 1.16 MiB (3%)

    ++++++++++++++++++++++++++++++++++++++++++++++++++ ++++++++++++++++++++++++
    Quote Quote  
  12. I thought your plan was to "spare no expense with the final bitrate". A ~10 percent larger file hardly seems like a problem. Use whatever bitrate is necessary to get the quality you want. And, as was pointed out earlier, Youtube is going to compress it down to ~3000 kbps. Whether your upload is 7000 kbps or 50000 kbps you probably won't see much difference after Youtube is done with it.
    Quote Quote  
  13. Originally Posted by jagabo View Post
    Whether your upload is 7000 kbps or 50000 kbps you probably won't see much difference after Youtube is done with it.
    Exactly. All this fine tuning is just spitting into the wind.
    Quote Quote  
  14. Member
    Join Date
    Nov 2013
    Location
    Australia
    Search Comp PM
    OK, ok.........hmmmm thanks then guys if I am "Spitting into the Wind" thanks jagabo for the lessons in GOP and bitrates etc it has been invaluable, maybe when YT does open up the 60fps then things may change a little. How is it then that 4k is available, surely the bitrates on those vids are through the roof and surely there would be less spitting into the wind?
    Quote Quote  
  15. I haven't downloaded any 4K videos -- but Youtube over compresses everything else to the point of making it marginally watchable. I doubt they'll change that for 4K.
    Quote Quote  
Visit our sponsor! Try DVDFab and backup Blu-rays!