Compilers may assume a pointer has natural alignment, even if it was
assigned from a pointer type with weaker alignment requirements. It
is thus not safe to assign a possibly unaligned value to a pointer,
regardless of how it is subsequently dereferenced.
Originally committed as revision 24897 to svn://svn.ffmpeg.org/ffmpeg/trunk
link rather than avfilter_default_get_video_buffer().
This is required as the buffer requested may be greater than the
buffer allocated locally by avfilter_default_get_video_buffer(), for
example if in filterchain there is a pad filter (like in "fifo,pad").
In that case the pad filter will try to write beyond the data of the
allocated buffer, resulting in a crash.
Originally committed as revision 24895 to svn://svn.ffmpeg.org/ffmpeg/trunk
This performs quite a bit better than the current 3GPP-inspired window decision
on all the samples I have tested. On the castanets.wav sample it performs very
similar to iTunes window selection, and seems to perform better than Nero.
On fatboy.wav, it seems to perform at least as good as iTunes, if not better.
Nero performs horribly on this sample.
Patch by: Nathan Caldwell <saintdev@gmail.com>
Originally committed as revision 24892 to svn://svn.ffmpeg.org/ffmpeg/trunk
This allows cleaner implementation of other psymodels using the existing
structs. It also will make it easier to interchange individual parts of
the psymodel to create hybrid models.
Patch by: Nathan Caldwell <saintdev@gmail.com>
Originally committed as revision 24890 to svn://svn.ffmpeg.org/ffmpeg/trunk
instead of current "make output file of size less than ss".
Also use it to make MP3 tests more readable (using -fs xxx where xxx is
the requested output size, not something slightly lower).
Originally committed as revision 24884 to svn://svn.ffmpeg.org/ffmpeg/trunk
This is to avoid split asm sections that attempt to preserve some
registers between sections.
Originally committed as revision 24869 to svn://svn.ffmpeg.org/ffmpeg/trunk
since all of it ends up in a single 32-bit pixel.
This seems likely to be wrong though, since it is different
from the 15 and 16 bit modes and might explain the half-width
issue for 24 bit truemotion.
Originally committed as revision 24864 to svn://svn.ffmpeg.org/ffmpeg/trunk
BGR32 and not BGR24, do not swap red and blue on big-endian
for this format as well.
Originally committed as revision 24863 to svn://svn.ffmpeg.org/ffmpeg/trunk
Zhentan Feng <spyfeng gmail com> as part of Google's Summer of Code program.
Originally committed as revision 24861 to svn://svn.ffmpeg.org/ffmpeg/trunk
The relevent extract of the iso 13818-2 about the value of the syntaxical
element top_field_first of the Picture Coding Extension is:
"top_field_first -- The meaning of this element depends upon picture_structure,
progressive_sequence and repeat_first_field.
[...]
In a field picture top_field_first shall have the value '0', and the only field
output by the decoding process is the decoded field picture."
Originally committed as revision 24853 to svn://svn.ffmpeg.org/ffmpeg/trunk
The plural form is preferred as it is more consistent with the other functions:
av_fill_image_linesizes()
av_fill_image_pointers()
and looks semantically more correct as it fills an array of elements.
Originally committed as revision 24851 to svn://svn.ffmpeg.org/ffmpeg/trunk
