Archive:Codecinfo

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Whilst XBMC is playing media on screen you can activate the codecinfo pop-up/overlay. 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 popup displays a number of real time variables describing detailed information on the codecs currently in use.

As of Dharma CodecInfo looks as following:

D(Audio: ac3, 48000hz, 5.1, s16, 448 kb/s) P(aq:99%, kB/s:440.98)
D(Video: mpeg2video, yuv420p, 720x480 [PAR 32:27 DAR 16x9], 9800 kb/s) P(vq: 98%, dc:libmpeg2, Mb/S: 3.45, drop:0, pc:2)
C( ad: 0.000, a/v: 0.047, edl:-, dcpu: 0% acpu: 0% vcpu:4%)
W( fps:23.98 CPU 4 core(s) average: 2.7% ) 

Sample	Meaning
Audio: ac3, 48000hz, 5.1	audio codec, sample rate, audio channels
s16	bits per sample?
448 kb/s	current bitrate
aq:99%	audio queue saturation
kB/s:440.98	average bitrate?
Video: mpeg2video	video codec
yuv420p, 720x480	colorspace, resolution
[PAR 32:27 DAR 16x9]	pixel aspect ratio / display aspect ratio
9800 kb/s	average bitrate
vq: 98%	video queue saturation
dc:libmpeg2	demux
Mb/S: 3.45	current video bitrate
drop:0, pc:2	dropped frames, pullup correction pattern length
ad: 0.000, a/v: 0.047, edl:-	audio delay, a/v sync, edit decision list
dcpu: 0%, acpu: 0%, vcpu:4%	demuxer cpu, audio cpu, video cpu
fps:23.98	frames per second
CPU 4 core(s) average: 2.7%	4 cores, CPU usage

The following example shows some realistic sample data in the approximate form it is displayed:

audio:(mp3lib MPEG layer-2, layer-3) br:128000 sr:48.00 khz chns:2
video:FFmpeg MPEG-4 fps:23.98 512x384 early/late:3/2
fps:23.93 cpu:0.00 dropped:1 Q:0 cache:80% ct:0.05 ac:-0.01

Codecinfo Variables

Sample	Full Variable Name	Meaning
audio:(mp3lib MPEG layer-2, layer-3)	Audio Codec	Audio decoder used to decode current audio stream
br:128000	Bitrate	Bitrate of audio stream (very inaccurate, often plain wrong)
sr:48.00 khz	Sample rate	Sample rate of audio stream
chns:2	Audio Channel Count	Number of audio channels present (very inaccurate, often plain wrong)
video:FFmpeg MPEG-4	Video Codec	Video decoder used to decode video stream
fps:23.98 512x384	Source Frames Per Second	Frames Per Second in source video
early/late:3/2	Early Frames / late Frames	Number of frames that have arrived earlier than expected and later than required.
fps:23.93	Actual Frames Per Second	Actual Frames per Second shown onscreen (can vary if you show video in a different resolution than source material)
cpu:0.00	CPU Usage	Assume Zero due to some mod quirk? (Bug report on SF 1728041)
dropped:1	Dropped Frames	Number of dropped frames
Q:0	?	?
cache:80%	Cache	XBMC caches the media locally to ensure continuous uninterrupted playback. If this figure drops it is due to either XBMC or the network struggling to keep up with the data throughput.
ct:0.05	Sync Correction	total A-V sync correction done
ac:-0.01	?	?