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| author | Stefan Kost <ensonic@users.sf.net> | 2011-02-18 17:36:30 +0200 |
|---|---|---|
| committer | Stefan Kost <ensonic@users.sf.net> | 2011-02-21 15:31:33 +0200 |
| commit | 85b37c41dfb264b64fb09796755cbd3776d544ca (patch) | |
| tree | 7925fd839a9604002174c47564d29f0617fd558b | |
| parent | b39078f255a017b76470e614d46cf43c5a3b438b (diff) | |
README: planning
| -rw-r--r-- | README | 13 |
1 files changed, 12 insertions, 1 deletions
@@ -85,7 +85,7 @@ Properties: - get bit-rate over time - specify window size, get min,max,avg bitrate for each window - gst-mi can draw them as a graph -- get key-frame statistics +- get key-frame statistics (using gst-index) - number of keyframes - min,max,avg keyframe interval - disconts @@ -136,6 +136,17 @@ Properties: - CBR/VBR type for each stream - can we derive that from the bitrate tags (no min/max bitrate set)? find . -name "*.c" -exec egrep -Hn "GST_TAG[A-Z_]*_BITRATE" {} \; + - formats + - all raw files are cbr + - some codecs are cbr only (some speech codecs) + - audio + - in an MP3 file, if there is no VBRI or Xing, + it probably is not a vbr stream + - +- lossy/lossless compression + - all raw formats are lossless (well rgb->yuv is lossy, but ...) + - some audio formats are lossless (flac, wavpack, ...) + - some video formats can be lossless (dirac, = discoverer workflow = == sync quick-scan == |