Added a tarkin encoder/decoder plugin.

Original commit message from CVS:
Added a tarkin encoder/decoder plugin.

I moved the tarking CVS code in here temporarily until they have a
library (hence this plugin is in ext)

test with:

./gst-launch filesrc location=/opt/data/shihad.mpg ! mpegdemux video_00! { queue ! mpeg2dec ! colorspace ! tarkinenc bitrate=3000 ! disksink location=out.ogg }

./gst-launch filesrc location=out.ogg ! tarkindec ! colorspace ! xvideosink

1 files changed, 42 insertions, 0 deletions

diff --git a/ext/tarkin/TODO b/ext/tarkin/TODO
new file mode 100644
index 00000000..909d3771
--- /dev/null
+++ b/ext/tarkin/TODO
@@ -0,0 +1,42 @@
+
+
+Most important things:
+
+ - the entropy coder, replace static huffman
+ - clean up the pnsr tools
+ - write docs and do some performance analysis, compare to other codecs
+ - think about a multiresolution multidimensional motion flow detection scheme,
+    Marco posted a good paper comparing different algorithms to do this
+
+
+Open bugs and stuff required to fix them:
+
+ - wavelet xform bug at short rows, see workaround in wavelet_xform.c
+ - (4,x) and (x,4) wavelet implementations have a bug which causes round-off 
+    errors in the two least significand bits
+
+
+Wavelet-related TODO's:
+
+ - remove unecessairy copying in inverse xform
+ - improve truncation table setup
+ - try other approaches to encode coefficients, jack was talking about VQ
+    and reuse vorbis code
+ - write avitotarkin/quicktimetotarkin/mpegtotarkin/player/recorder
+    (a libsndfile/libaudiofile/libao alike video library would be great !)
+ - profile
+ - add special transform functions for large strides to prevent cache misses
+ - mmx/3dnow/sse/altivec
+
+
+Other:
+
+ - u and v buffers could get quarter size already at color conversion
+    this would speed up the whole algorithm; perhaps this should get
+    configurable
+ - fast internal 16bitY/U/V->15/16bitRGB for display could make sense
+ - the wavelet codec could be used for still image compression too
+    (we just have to define a file format with all goodies you can imagine;) 
+ - to make it perfect someone has to write a good bilevel compressor and
+    mask seperation algorithm
+