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author | Yoshihisa Uchida <uchida@rockbox.org> | 2010-05-13 12:40:09 +0000 |
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committer | Yoshihisa Uchida <uchida@rockbox.org> | 2010-05-13 12:40:09 +0000 |
commit | 0f5c6d47d4fdd17260b840024880ba6dd3fdf935 (patch) | |
tree | 6d2526a58816aa9f6431a22a8f1a56278a445dfd /apps/codecs/libtta/README.rockbox | |
parent | 889b4a8ce838bd4191c736d01d9665c177e6d390 (diff) | |
download | rockbox-0f5c6d47d4fdd17260b840024880ba6dd3fdf935.tar.gz rockbox-0f5c6d47d4fdd17260b840024880ba6dd3fdf935.zip |
add True Audio (TTA) codec
decoding speed iPod video ~153%
But in some players, the decoding speed is not enough.
(e.g., H180 52.4% (thanks amiconn), H300 55.09% (thanks n1s))
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25994 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'apps/codecs/libtta/README.rockbox')
-rw-r--r-- | apps/codecs/libtta/README.rockbox | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/apps/codecs/libtta/README.rockbox b/apps/codecs/libtta/README.rockbox new file mode 100644 index 0000000000..d605986d46 --- /dev/null +++ b/apps/codecs/libtta/README.rockbox | |||
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1 | Library: True Audio | ||
2 | Imported by : Yoshihisa Uchida | ||
3 | Import date : 2010-03-05 | ||
4 | Baseed by : TTA library version 1.2 for hardware players (ttalib-hwplayer-1.2.tgz) | ||
5 | from http://true-audio.com/Free_Downloads | ||
6 | |||
7 | This directory contains a decoder version of True Auido. | ||
8 | |||
9 | LICENSING INFORMATION | ||
10 | |||
11 | True Audio license is described in the README file or each source file (excepts filter_arm.S) | ||
12 | in this directory. | ||
13 | |||
14 | Limitation | ||
15 | |||
16 | In some players, the decoding speed is not enough ( < 110%). | ||
17 | (For example, H180: decoding speed < 60%) | ||
18 | |||
19 | IMPORT DETAILS | ||
20 | |||
21 | The .[ch] files from ttalib-hwplayer-1.2.tgz were imported into Rockbox. | ||
22 | But the following files do not include. | ||
23 | Makefile | ||
24 | tta.vcproj | ||
25 | samples/* | ||
26 | |||
27 | |||
28 | When source files import in Rockbox, I changed below. | ||
29 | |||
30 | all files | ||
31 | - TAB => 4 spaces. | ||
32 | - // style comments changes to /* */ style. | ||
33 | |||
34 | Moreover, I modify to optimize the decoding speed. | ||