When av_reallocp fails, the associated variables that keep track of
the number of elements in the array (and in some cases, the
separate number of allocated elements) need to be reset.

Not all of these might technically be needed, but it's better to
reset them if in doubt, to make sure variables don't end up
conflicting.
Signed-off-by: Martin Storsjö <martin@martin.st>

Pointers returned from av_malloc can't in general be passed
to av_realloc.
Signed-off-by: Martin Storsjö <martin@martin.st>

This check was mistakenly removed in 5626f994.
Signed-off-by: Martin Storsjö <martin@martin.st>

Signed-off-by: Diego Biurrun <diego@biurrun.de>

This will allow us to avoid copying the packets in many cases.

This breaks ABI.

This allows depacketizers to figure out if packets have been lost.
Signed-off-by: Martin Storsjö <martin@martin.st>

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

This avoids clashes if we internally want to override the global
open function.
Signed-off-by: Martin Storsjö <martin@martin.st>

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

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

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit a2704c97)

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

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit e356fc57)

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit 6b4aa5da)

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

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

In the name of consistency:
get_byte           -> avio_r8
get_<type>         -> avio_r<type>
get_buffer         -> avio_read

get_partial_buffer will be made private later

get_strz is left out becase I want to change it later to return
something useful.
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit b7effd4e)

In the name of consistency:
get_byte           -> avio_r8
get_<type>         -> avio_r<type>
get_buffer         -> avio_read

get_partial_buffer will be made private later

get_strz is left out becase I want to change it later to return
something useful.
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>

init_put_byte should never be used outside of lavf, since
sizeof(AVIOContext) isn't part of public ABI.
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit e731b8d8)

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit ae628ec1)

init_put_byte should never be used outside of lavf, since
sizeof(AVIOContext) isn't part of public ABI.
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>

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

This avoids double semicolons after macro expansion.
Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit 44adbebe)

This avoids double semicolons after macro expansion.
Signed-off-by: Mans Rullgard <mans@mansr.com>

Tested to compile with lavc major bump.
Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit b2ed95ec)

Tested to compile with lavc major bump.
Signed-off-by: Mans Rullgard <mans@mansr.com>

Originally committed as revision 25844 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 25843 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 25371 to svn://svn.ffmpeg.org/ffmpeg/trunk