Takes encoder delay into account by comparing first the coded page
duration with the calculated page duration. Handles last packet duration
if needed, also by comparing coded duration with calculated duration.
Also does better handling of timestamp generation for packets in the
first page for streamed ogg files where the start time is not
necessarily zero.

This also allows for removing some of the Vorbis-related hacks.

It's supposed to be called only from (de)muxers.

It's used in libavdevice.

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>

The first part of the metadata, the "vendor" string, is required by
libvorbis, it will refuse to play when it is not available.
Also we do not currently parse that part into metadata so it would also
be lost if we removed it as well.

Signed-off-by: Mans Rullgard <mans@mansr.com>

Avoids an assert when the sample rate is invalid and the timebase
is thus set to e.g. 1/0.
Sample file is http://samples.mplayerhq.hu/ogg/fuzzed-srate-crash.ogg

This is a quick fix for a crash, not a final solution.

Signed-off-by: Mans Rullgard <mans@mansr.com>

patch by Anton Khirnov  anton _at_ khirnov _dot_ net

Originally committed as revision 25505 to svn://svn.ffmpeg.org/ffmpeg/trunk

Builds only seemed to have been broken in some configurations, though.

Originally committed as revision 25499 to svn://svn.ffmpeg.org/ffmpeg/trunk

patch by Anton Khirnov  anton _at_ khirnov _dot_ net

Originally committed as revision 25493 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 24740 to svn://svn.ffmpeg.org/ffmpeg/trunk

is deprecated and will be dropped at the next major bump.

Originally committed as revision 22735 to svn://svn.ffmpeg.org/ffmpeg/trunk

Patch by James Darnley <james darnley at gmail>.

Originally committed as revision 22605 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 22477 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 22474 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 22473 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 22472 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 22460 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 22459 to svn://svn.ffmpeg.org/ffmpeg/trunk

Patch by Anton Khirnov, wyskas at gmail dot com

Originally committed as revision 21587 to svn://svn.ffmpeg.org/ffmpeg/trunk

arrays of fixed length.
Code from ffmbc with changes to adapt to our metadata API.

Originally committed as revision 20836 to svn://svn.ffmpeg.org/ffmpeg/trunk

keys are case-insensitive.

Originally committed as revision 20267 to svn://svn.ffmpeg.org/ffmpeg/trunk

First, make s signed, so that comparisons against end - p will not be made as
unsigned, making the check incorrectly pass if p is beyond end.
Also ensure that p will never be > end, so the code is correct also if
buf is not padded.

Originally committed as revision 20014 to svn://svn.ffmpeg.org/ffmpeg/trunk

with inverted sign.

Originally committed as revision 19978 to svn://svn.ffmpeg.org/ffmpeg/trunk

Ogg demuxers.

Originally committed as revision 19186 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 18494 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 17188 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 17164 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 15990 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 15784 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 14951 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 14948 to svn://svn.ffmpeg.org/ffmpeg/trunk

Patch by Siarhei Siamashka <siarhei.siamashka gmail com>

Originally committed as revision 14249 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 13098 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 11762 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 10943 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 10725 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 10724 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 10707 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 10706 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 10705 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 10704 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 9411 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 9410 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 9409 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 9408 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 9407 to svn://svn.ffmpeg.org/ffmpeg/trunk