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| author | Josh Coalson <jcoalson@users.sourceforce.net> | 2009-01-07 06:54:05 +0000 |
|---|---|---|
| committer | Josh Coalson <jcoalson@users.sourceforce.net> | 2009-01-07 06:54:05 +0000 |
| commit | bd161c61fa665fb4e91485e2107946f73affcdb8 (patch) | |
| tree | aecb715291f46f3ca0774e605e2346bf8106dc8c /doc/html/format.html | |
| parent | ee51fc0bae47244060fa966bccf4b82d0a5e394e (diff) | |
| download | flac-bd161c61fa665fb4e91485e2107946f73affcdb8.tar.gz | |
Improve decoder's ability to distinguish between a FLAC sync code and an MPEG one (SF #2491433 https://sourceforge.net/tracker2/?func=detail&aid=2491433&group_id=13478&atid=113478
Diffstat (limited to 'doc/html/format.html')
| -rw-r--r-- | doc/html/format.html | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/doc/html/format.html b/doc/html/format.html index 98b30b0a..a9294dba 100644 --- a/doc/html/format.html +++ b/doc/html/format.html @@ -1121,7 +1121,7 @@ <1> </td> <td> - Reserved:<br /> + Reserved: <a href="#frame_header_notes">[1]</a><br /> <ul> <li> <tt>0</tt> : mandatory value @@ -1137,7 +1137,7 @@ <1> </td> <td> - Blocking strategy:<br /> + Blocking strategy: <a href="#frame_header_notes">[2]</a> <a href="#frame_header_notes">[3]</a><br /> <ul> <li> <tt>0</tt> : fixed-blocksize stream; frame header encodes the frame number @@ -1325,9 +1325,9 @@ </td> <td> if(variable blocksize)<br /> - <8-56>:"UTF-8" coded sample number (decoded number is 36 bits)<br /> + <8-56>:"UTF-8" coded sample number (decoded number is 36 bits) <a href="#frame_header_notes">[4]</a><br /> else<br /> - <8-48>:"UTF-8" coded frame number (decoded number is 31 bits) + <8-48>:"UTF-8" coded frame number (decoded number is 31 bits) <a href="#frame_header_notes">[4]</a> </td> </tr> <tr> @@ -1360,8 +1360,11 @@ <td> </td> <td bgcolor="#F4F4CC"> - <font size="+1">NOTES</font><br /> - <ul> + <a name="frame_header_notes"><font size="+1">NOTES</font></a><br /> + <ol> + <li> + This bit must remain reserved for <tt>0</tt> in order for a FLAC frame's initial 15 bits to be distinguishable from the start of an MPEG audio frame (<a href="http://lists.xiph.org/pipermail/flac-dev/2008-December/002607.html">see also</a>). + </li> <li> The "blocking strategy" bit must be the same throughout the entire stream. </li> @@ -1371,7 +1374,7 @@ <li> The "UTF-8" coding used for the sample/frame number is the same variable length code used to store compressed UCS-2, extended to handle larger input. </li> - </ul> + </ol> </td> </tr> </table> |