[Tips]Lossless recording-using x264vfw  

[Tips]Lossless recording-using x264vfw

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* Before you begin, you need to install the x264 codec and you can find the instructions in the following link.

(http://cafe.naver.com/ohsoft/618)

Click on CODEC menu of OHCAM and click on the external codec menu item.

Check Use External Codec, select the x264vfw codec and click the Settings button.

 
Based on the x264vfw default setting, change the yellow box in the figure below as shown.


The parts that are changed are as follows.

Preset-Ultrafast (Set to improve encoding speed and can increase file size, but other options will cause more racks.)

Profile-High 4: 4: 4 (Changes to High 444 for lossless encoding as the default profile may lose video quality.)

Keep input colorspace-Maintains the color space of the internally received buffer. (Other options may cause encoding to fail.)

Rate control-Single pass-lossless-Change for lossless encoding.

Press the OK button to apply the setting.


Since the settings are applied to x264vfw64 for 64-bit when recording 64-bit games, run x264vfw-Configure x264vfw64 from the Start menu and set them as shown above.

If you record with the above settings, you will be recording losslessly, where the important part is to change the settings of the video player to play lossless video losslessly.

The following shows how to check the lossless video based on the next pot player.

After launching the next pot player, click Preferences (F5).

 

 
In the environment setting window

Click Image-Colorspace / Properties on the left, and then select Convert directly if possible-Change to default output colorspace in the Colorspace group box on the right. (If this setting is not made, the color of the screen will be lost when playing the video even if the recording is lossless.)


Press OK and play the video recorded without loss.

At this time, if you press Ctrl + F1 on the next pot player, the video codec output format must be output in RGB (32 Bits) as shown below.


In addition, the properties below should be identical in the Playback Information-File Information tab as shown in the following figure.

Format profile: High 4: 4: 4 Predictive @ L3
Color space: RGB
Color range: Full
Matrix coefficients: RGB


Please note that Windows Media Player does not play properly and the preview thumbnail is not displayed in Windows Explorer.


About

This is a blog to share a variety of tips and news associated with OhSoft.

Archives

  1. [HOWTO]oCam main screen configuration and features
  2. [HOWTO]Record your screen
  3. [HOWTO]Record only sound
  4. [HOWTO]Capture screen
  5. [HOWTO]Resizing the recording area
  6. [HOWTO]Setting codec-selecting video codec
  7. [HOWTO]Setting Codec-Selecting Video External Codec (VFW)
  8. [HOWTO]Setting codec-Setting audio quality of audio codec
  9. [HOWTO]Record microphone and system sounds
  10. [HOWTO]Game recording
  11. [HOWTO]Setting up oCam - Record - General tab
  12. [HOWTO]Setting up oCam - Record - Game Tab
  13. [HOWTO]Setting up oCam - Record - Resize
  14. [HOWTO]Setting up oCam - Sound
  15. [HOWTO]Setting up oCam - Capture
  16. [HOWTO]Setting up oCam - Animated GIF
  17. [HOWTO]Setting up oCam - Hotkeys
  18. [HOWTO]Setting Up oCam - Effect - Click Effect
  19. [HOWTO]oCam settings- Effect - Highlight effect
  20. [HOWTO]oCam settings - Effect - Cursor Size
  21. [HOWTO]Setting up oCam-Save
  22. [HOWTO]How to reduce the size of recorded video files during game recording (For NVIDIA codec)
  23. [HOWTO]Setting the frame rate mode - VFR (Variable frame rate) or CFR (Constant frame rate)
  24. [HOWTO]Frequently Asked Questions about Variable frame rate (VFR) and Constant frame rate (CFR)
  25. [HOWTO]How to reset oCam's settings
  26. [Tips]How to record the microphone and computer sound together during recording (Windows Vista, 7, 8, 10)
  27. [Tips]How to record sound when using the USB audio interface
  28. [Tips]Rename files saved when recording, recording, or capturing
  29. [Tips]Installing oCam in a Different Path
  30. [Tips]How to record what you hear while recording
  31. [Tips]Download external codecs
  32. [Tips]How to improve the recording quality and sound quality of oCam
  33. [Tips]How to make recorded video recoverable even if app is forcibly terminated during recording
  34. [Tips]Using the x264vfw External Codec
  35. [Tips]Lossless recording-using x264vfw
  36. [Tips]Nox App (Android Player) Solution for the rack that occurs badly when recording a game
  37. [Tips]To use an external codec - Xvid codec
  38. [Tips]Adding a watermark
  39. [Tips]Tips for adjusting to elaborate the recording area window
  40. [Tips]To move the recording area when you recording
  41. [Tips]To set the image quality at the time of recording (from high quality to low quality)
  42. [Tips]In Windows 7 and later, useful tips during microphone recording
  43. [Tips]Way to record the sound of the microphone and the computer together at the time of recording (of Windows Vista, 7,8)
  44. [FAQ]g_pDSCapture-> CreateCaptureBuffer (hr = 0x88780064) error appears (Windows XP)
  45. [FAQ]When you start recording, Error message appears Failed to initialize sound library. Check the Windows Audio service is running.
  46. [FAQ]If you get an error 'The endpoint device is already in use' at the start of recording
  47. [FAQ]If sound comes from only one speaker when recording microphone
  48. [FAQ]If you get an error when installing oCam
  49. [FAQ]Recording does not start with error message 'Failed to url_fopen'
  50. [FAQ]Error appears when recording starts 'Failed to av_image_alloc'
  51. [FAQ]Automatic shutdown after a few seconds after running oCam
  52. [FAQ]7 Days to die Game can't recognize game recording (AntiCheat related)
  53. [FAQ]Game bounces immediately after starting Minecraft recording with oCam (Nvidia graphics card)
  54. [FAQ]The sound becomes loud or torn when playing back the recorded video on the daum pot player
  55. [FAQ]Workaround for voice sync when editing in Adobe Premiere
  56. [FAQ]'Failed to get path of 64-bit Common Files directory' Error when installing oCam
  57. [FAQ]Error while writing video frame (error = -28)
  58. [FAQ]Please do not install absolutely portable version.
  59. [FAQ]What is a digital container format and codec?
  60. [FAQ]Container format and video codecs that are support?
  61. [FAQ]System is slow at the time of recording.
  62. [FAQ]Please let me disable the deep screen function when avast vaccine has been installed.
  63. [FAQ]Can I save to mp3 only the sound of the computer system?
  64. [FAQ]When you are recording, and how to ensure that does not contain the main window
  65. [FAQ]WASRecord: pAudioClient->Initialize failed. (hr=0x80070005) Error
  66. [FAQ]'is dangerous, so Chrome has blocked it.' Google Chrome Not Downloading Files
  67. [FAQ]Cause: Failed to avio_open (error=-13)

Program

  1. oCam
  2. VirtualDVD
  3. CoffeeZip
  4. SecretFolder
  5. CapturePlus

OhSoft Blog - OhSoft.net.

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Additional tips

[Tips]How to improve the recording quality and sound quality of oCam

To record losslessly, refer to the link below.

http://cafe.naver.com/ohsoft/619

How to improve recording quality

oCam is basically

I am using the MPEG-4 video codec.

The MPEG-4 codec, which is basically a codec, shows a moderate quality due to the codec characteristics, but it is suitable for recording on low and medium-sized computers, and has a good software compatibility (playable in some video players) without using a hardware encoder. It is set by default.

If you have an NVIDIA graphics card (GTX Desktop 600 or higher or GTX 650M or higher for a laptop) or have high CPU performance, you can use NVENC H.264 encoder or Open H.264 encoder to record video quality. There is.

Click the Codec button in the Ocam main window as shown below and select Nvidia NVENC H.264 (if your graphics card does not support it, it will fail with an error if you start recording.) Or Open H.264 codec to record. Do it.

 

For the Open H.264 codec, the best video quality is obtained when the Recording-Normal-Quality is set to Very High in the following settings. (For NVIDIA NVENC H.264 codec, the following settings are not affected. You can change the settings in Codec-Hardware Encoder Settings in the Ocam main window.)

 
* In case of Open H.264 codec, the picture quality is good when the quality is set to very high, but it consumes a lot of CPU, so it may drop a lot of frames when recording a game, so we recommend using MPEG-4 codec if performance is not supported. .

* Since Nvidia NVENC codec is a hardware encoder, there is almost no frame drop than any built-in codec of OCAM for game recording, and it has the best recording performance, so it is best to use NVENC codec if the graphics card supports it.

* Using Nvidia NVENC codec, some games use a lot of GPU memory, but it also uses a lot of GPU memory for encoding, so recording may fail if there is not enough GPU memory.

* In the picture above, MP4 container is used. It can be used in MKV, M4A, MOV, and AVI containers.

 

 

How to improve sound quality

oCam is basically

I am using AAC audio codec (192 kbps).

To change the sample code or bit rate of an audio codec, click the Codec button in Ocam's main window, then click Set Audio Codec.

 
Then the following window will appear.

 
As shown in the figure above, the supported audio codecs support AAC, MP3, MP2, WMA, and Flac.

I personally recommend using the most widely used and compatible AAC codec.

You can improve the sound quality by changing the bit rate or sample rate.

For AAC codec, the supported bitrate is up to 512kbps and the sample rate is up to 96000khz.

You can use Flac codec to record losslessly, but recording file size can be large.

To change the audio codec you want to record, click the codec button of Ocam and select the container you want (for example, if you use mkv). Then select the codec with the audio codec you want in the container.


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