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.
Eden Release
For fullscreen video playback, the codec information is split into 4 lines of text.
- Audio information - provided by both the 'D'emuxer and the 'P'layer
- Video information - provided by both the 'D'emuxer and the 'P'layer
- General playback information
- 'W'indowing and System CPU information
Samples from the screen above
| Audio Information | Explanation |
|---|---|
| aac | Audio Codec |
| 48000 Hz | Sample Rate |
| stereo | Audio Channels |
| s16 | Sample Size (s16 = Signed 16-bit value) |
| 317 kb/s | Average Audio Bitrate (reported by demuxer) |
| aq:96% | Audio Queue Saturation |
| kB/s:307.60 | Current Audio Bitrate (reported by player) |
| att:0.0db | Attenuation / Gain added by player |
| Video Information | Explanation |
|---|---|
| h264 (High) | Video Codec / Profile |
| yuv420p | Pixel Format/Color Space |
| 1920x1080 [PAR 1:1 DAR 16:9] | Resolution / Pixel Aspect Ratio / Display Aspect Ratio |
| 28402 kb/s | Average Audio Bitrate (reported by demuxer) |
| fr:23.976 | Framerate of Source |
| vq:99% | Video Queue Saturation |
| dc:ff-h264 | Video Library perfoming decode (in this case, ffmpeg/h264) |
| Mb/s:29.64 | Current Video Bitrate (reported by player) |
| drop:87 | Number of Dropped Frames |
| pc:none | Pullup Correction Pattern Length |
| General Playback Information | Explanation |
|---|---|
| ad:0.000 | Audio Delay (Configured) |
| a/v:0.029 | 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:95% | Relative CPU Usage of the Video Decode Thread |
| cache:30.71MB 100% | Size of Cached Data and % of Cache Utilized |
| Windowing/System Performance Information | Explanation |
|---|---|
| fps:21.00 | Framerate being Displayed |
| CPU 4 core(s) | System Processor Information (this display is OS-dependent) |
| average: 31.6% | Average CPU Load across all Cores |
Pre-Eden Release Information
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
| 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 | ? | ? |