Difference between revisions of "Codecinfo"

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(Breakdown)
m (fps is gone from windowing in v15)
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! style="background: #DBDBDB;" | '''Windowing information'''
 
! style="background: #DBDBDB;" | '''Windowing information'''
 
! style="background: #DBDBDB;" | '''Breakdown'''
 
! style="background: #DBDBDB;" | '''Breakdown'''
|-
 
| fps:24.00 || For the user some meaningless value.
 
 
{{Note|'''NOT FPS AT ALL!!!.'''}}
 
 
This is most likely of no value to the user. I wanted to remove it but there was protest by people not knowing what this is about. Actually this has been a cycle counter of the application's main loop which in many cases was almost equal to video FPS. After introduction of dirty regions some while ago this started more and more not to be the value it pretends to be.
 
If you are not interested in fading control of labels or scrolling text, this is not of any interest to you.
 
 
If you want to check if your video playback is working as it should, watch the skip and drop values. If those stay low, nothing to worry about. Increasing skip value means, that video frames cannot be rendered in time. If you even see dropping, then it's our last resort, as the system seems to be too slow to play that video and we told the decoder to throw away complete frames.
 
 
|-
 
|-
 
| CPU 4 core(s) || System processor information (this display is OS-dependent)
 
| CPU 4 core(s) || System processor information (this display is OS-dependent)

Revision as of 08:37, 27 July 2015

Home icon grey.png   ▶ Video library ▶ Playback ▶ Codecinfo

Whilst Kodi is playing media on screen you can activate the codecinfo overlay o key on a keyboard. This normally appears as white text on a black background bar located near the top of the screen (dependent on the skin being used). The codecinfo overlay displays a number of real time variables describing detailed information on the codecs currently in use.

Note: The codecinfo screen is not entirely accurate for some of the reported data, due to the fact that the codecinfo screen itself will reduce performance on low powered devices (i.e., Raspberry Pi, some Android/ARM boxes).


1 Current stable builds

Helix
Video codecinfo window as seen in stable Kodi v14.x and newer builds.

Information is split into 6 lines of text:

  • Audio information - Demuxer
  • Audio information - Player
  • Video information - Demuxer
  • Video information - Player
  • General playback information C
  • Windowing and System CPU information


1.1 Breakdown

Samples from the screen(s) above:

Audio information Breakdown
aac Audio codec
mp4a / 0x6134706D Codec ID - Format profile [1]
48000 Hz Sampling rate
5.1 Audio channels
s16 Sample size (s16 = signed 16-bit value)
fltp float, planar
437 kb/s Average audio bitrate (reported by demuxer)
aq:99% Audio queue saturation
Kb/s:437.41 Current audio bitrate (reported by player)
att:0.0db Attenuation / gain added by player
Video information Breakdown
h264 (Main) (avc1 / 0x31637661) Video codec
yuv420p Color space / Chroma subsampling
1920x1080 Resolution
SAR 1:1 DAR 16x9 Source Aspect Ratio - Display Aspect Ratio
9282 kb/s Average audio bitrate (reported by demuxer)
fr:24.000 Source framerate
vq:88% Video queue saturation
dc:ff-h264-dxva2 Video library performing decode
Mb/s:7.79 Current video bitrate (reported by player)
drop:12 Number of dropped frames
skip:13 Number of skipped frames
pc:1 Pullup correction pattern length
General playback information Breakdown
ad:0.000 Audio delay (configured)
a/v:0.030 Audio/video sync difference (real time)
edl:- Edit decision list
dcpu: 0% Relative CPU Usage of the player thread
acpu: 0% Relative CPU usage of the audio decode thread
vcpu: 0% Relative CPU Usage of the video decode thread
cache:0 B 100% Size of cached data and % of cache utilized
Windowing information Breakdown
CPU 4 core(s) System processor information (this display is OS-dependent)
average: 4.7% Average CPU load across all cores
Sync to screen information Breakdown
refresh Actual refresh-rate being displayed
missed Number of missed frames
speed Audio speed correction to sync
sync Video speed to enable sync
avg Avg amount of correction
error Percentage of errors syncing

2 References

3 Further information/discussion