Avoids division by 0 due to e.g. time_base denominator being 0.

Originally committed as revision 19334 to svn://svn.ffmpeg.org/ffmpeg/trunk

or with extremely large extradata.

Originally committed as revision 19333 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 19332 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 19331 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 19330 to svn://svn.ffmpeg.org/ffmpeg/trunk

Before, the decoder could interpret a corrupt frame
as a NAL_DPA and NAL_DPC, and then start decoding
even if decode_slice_header() returned an error.
This frequently caused crashes.

Fixes issue1228, issue1229, and partially issue1238.

Originally committed as revision 19328 to svn://svn.ffmpeg.org/ffmpeg/trunk

Patch by Art Clarke (aclarke AT xuggle com)

Originally committed as revision 19327 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 19326 to svn://svn.ffmpeg.org/ffmpeg/trunk

negative values.

Originally committed as revision 19325 to svn://svn.ffmpeg.org/ffmpeg/trunk

It returns non decodable B-frames.

Originally committed as revision 19324 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 19323 to svn://svn.ffmpeg.org/ffmpeg/trunk

Fixes issue1237.

Originally committed as revision 19322 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 19320 to svn://svn.ffmpeg.org/ffmpeg/trunk

Fixes issue1240/mpeg1/smclockmpeg1.avi.3.1

Originally committed as revision 19319 to svn://svn.ffmpeg.org/ffmpeg/trunk

A pointer should never be assigned a value which may have less than the
required alignment of the target type.  Compilers may assume pointer
values have the required alignment, and emit normal load/store instructions.

Unaligned pointers should use a character type or compiler-specific
type modifiers.

Originally committed as revision 19318 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 19317 to svn://svn.ffmpeg.org/ffmpeg/trunk

its stride and offset to always have align 4.

Originally committed as revision 19316 to svn://svn.ffmpeg.org/ffmpeg/trunk

patch by Frank Barchard, fbarchard google com

Originally committed as revision 19315 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 29409 to svn://svn.mplayerhq.hu/mplayer/trunk/libswscale

Originally committed as revision 19314 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 19313 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 19312 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 19311 to svn://svn.ffmpeg.org/ffmpeg/trunk

Most muxers in ffmpeg ignore the SEI if it is placed in extradata, so instead
it has to be catted to the front of the first video frame.

Originally committed as revision 19310 to svn://svn.ffmpeg.org/ffmpeg/trunk

patch by Frank Barchard, fbarchard google com

Originally committed as revision 19309 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 19308 to svn://svn.ffmpeg.org/ffmpeg/trunk

incorrect for nalsize > INT_MAX - buf_index

Originally committed as revision 19307 to svn://svn.ffmpeg.org/ffmpeg/trunk

  r19300
  Rewrite mp3 parser. New code is much simpler and does not drop
  stuff at random.

Originally committed as revision 19306 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 19305 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 19304 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 19303 to svn://svn.ffmpeg.org/ffmpeg/trunk

Too often it ends up decoding random data into noise without detecting
it (for example after seeking of some MP3 data with oddly often occurring
startcode emulation).
Fixes issue1154.

Originally committed as revision 19302 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 19301 to svn://svn.ffmpeg.org/ffmpeg/trunk

stuff at random.

Originally committed as revision 19300 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 19299 to svn://svn.ffmpeg.org/ffmpeg/trunk

The renaming in r19293 missed a few things.

Originally committed as revision 19298 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 19297 to svn://svn.ffmpeg.org/ffmpeg/trunk

primarily intended for internal use in lavc/lavf, not for use in apps.

Originally committed as revision 19296 to svn://svn.ffmpeg.org/ffmpeg/trunk

header file.

Originally committed as revision 19295 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 19294 to svn://svn.ffmpeg.org/ffmpeg/trunk