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diff --git a/lib/rbcodec/codecs/libatrac/README.rockbox b/lib/rbcodec/codecs/libatrac/README.rockbox new file mode 100644 index 0000000000..30703a3e49 --- /dev/null +++ b/lib/rbcodec/codecs/libatrac/README.rockbox | |||
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1 | Library: libatrac | ||
2 | Imported by : Mohamed Tarek | ||
3 | Import date : 10-August-2009 | ||
4 | |||
5 | LICENSING INFORMATION | ||
6 | |||
7 | ffmpeg is licensed under the Lesser GNU General Public License. | ||
8 | |||
9 | IMPORT DETAILS | ||
10 | |||
11 | The decoder is based on ffmpeg-svn r18110 : Mar 21 2009. | ||
12 | Some changes were done on in order to use static VLC tables | ||
13 | according to this commit : | ||
14 | http://git.ffmpeg.org/?p=ffmpeg;a=commit;h=4c20cf13a166577d93f5b2b0abb4609c60104d33 | ||
15 | |||
16 | The decoder had been modified to use fixed-point arithmetic. | ||
17 | |||
18 | TESTING | ||
19 | |||
20 | The test program should compile in any Unix-like environment using the | ||
21 | command "make -f Makefile.test". | ||
22 | |||
23 | For ARM targets add -DCPU_ARM to CFLAGS in Makefile.test to make use of | ||
24 | the asm ARM optimisations in rockbox's mdct library. | ||
25 | |||
26 | For Big-endian targets, change -D"ROCKBOX_LITTLE_ENDIAN=1" | ||
27 | to -D"ROCKBOX_BIG_ENDIAN=1" in Makefile.test. | ||
28 | |||
29 | Running "./atractest file.rm" will decode the audio data to a WAV file | ||
30 | called "output.wav" in the current directory. | ||