- #FFMPEG MAC OS AUDIO CHOPPY HOW TO#
- #FFMPEG MAC OS AUDIO CHOPPY FOR MAC#
- #FFMPEG MAC OS AUDIO CHOPPY 720P#
If it does not, just go back to the settings to uncheck the option again. Now try playing 4K video on VLC to see if hardware acceleration makes a difference. Press Save to save VLC settings and restart VLC. If you are using the all interface, you should select Video Codecs > FFmpeg > Hardware decoding and then make sure Automatic or DXVA is selected. Automatic and DXVA are ways to enable GPU acceleration. Click the drop-down menu, you will see Automatic, Direct3D11 Video Acceleration, DirectX Video Acceleration (DXVA) 2.0, and Disable. If you use the simple settings interface, click on Input & Codecs and then you will see Hardware-accelerated decoding option. Open the VLC media player and click on Tools > Preferences to open VLC settings window.
#FFMPEG MAC OS AUDIO CHOPPY HOW TO#
If you want to know how to enable it manually, here's the guide. VLC 3.0 activates hardware decoding by default to get 4K and 8K playback. How to enable GPU accelerated decoding in VLC to avoid VLC lagging/choppy/stuttering? Note: the VLC media player framework enables GPU acceleration decoding of video streams depending on the video codec, graphic card and operating system. Some users report that this feature solves 4K video stuttering issue on VLC. Thankfully, VLC allows users enabling the GPU accelerated decoding which feature theoretically uses the processing power of the graphic card to lighten the load on the processor of the system. Enable GPU Accelerated DecodingĪs mentioned above, playing 4K video requires a lot on computer's processor and graphic chip, that's why 4K video playback issue often occurs.
Once done, open the new file with VLC and now it should play without choppy, lagging, or stuttering issue. Then hit RUN icon to starting compressing 4K video for smooth playback on VLC now. Step 4: Click Browse button to save your converted 4K video where you like. And to get best video and audio playback setting for VLC, you can flexibly adjust the output video codec, bitrate, frame rate, etc to make them fit with VLC best.
#FFMPEG MAC OS AUDIO CHOPPY 720P#
Click on the gear icon, and you're able to compress 4K to 1080p, 720p etc. Step 3: Adjust 4K video resolution, frame rate, bit rate. You can continue your 4K video format, or change 4K video format as well. After 4K video loaded, there pops up a window with 180+ video formats for choosing. Step 1: Click " +Video" to load your 4K video files.
#FFMPEG MAC OS AUDIO CHOPPY FOR MAC#
In DecodeLoop, initialDownloadPosition is now equal to mDecoderPosition, so we enter buffering and never recover.Download for Mac Download for PC How to Compress 4K to 1080p/720p for VLC Smooth Playback? DecodeAudioData decodes the packet and returns. ReadPacket doesn't do any EOF handling yet because we're processing the second to last packet. ReadOggPage ends up reading the entire rest of the file into the ogg_sync_state (it happens to read more than one page because it attempts to read in 4k chunks, and the last read includes both the end of the page it is trying to read and the remaining part of the file). What happens is that we finally fall below AMPLE_AUDIO_MS and attempt to decode some audio. This is why the DecodeLoop starts off with 5397ms of audio decoded due to the initial decoding done by FindStartTime.
Vq 0 aq 0 ad 0/253 ct 6594/6847 a vwait vpump buffer skipkf Vq 0 aq 0 ad 0/267 ct 6559/6826 a vwait vpump buffer skipkf Vq 0 aq 0 ad 0/292 ct 6513/6805 a vwait vpump buffer skipkf Vq 0 aq 0 ad 0/305 ct 6478/6783 a vwait vpump buffer Vq 0 aq 0 ad 0/331 ct 6431/6762 a vwait vpump buffer Vq 0 aq 0 ad 0/344 ct 6397/6741 a vwait vpump buffer We never managed to refill the audio queue after this.Īudio buffered in the audio backend (calculated from mAudioEndTime - currentTime) drops below LOW_AUDIO_MS: Vq 0 aq 254 ad 5397/5397 ct 0/-1 a await vwait vpumpĪt 3.9s, buffering kicks in (and mAudioQueue drains completely at 3.947s):
When playback starts, we've decoded 5.4s of audio: Looking at some DecodeLoop diagnostic logging I've got in place for another bug: In new02/, the stuttering starts around 6-7 seconds into playback. Can also reproduce this with locally downloaded files. Audio playback starts stuttering about 1/2 way thoughall of the ffmpeg produced Vorbis files hosted here (tested on OS X):
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