Signed-off-by: NAnton Khirnov <anton@khirnov.net>

The problem with url_exist() is that it tries to open a resource in
RDONLY mode. If the file is a FIFO and there is already a reading
client, the open() call will hang.

By using avio_check() with access mode of 0, the second reading
process will check if the file exists without attempting to open it,
thus avoiding the lock.

Fix issue #1663.
Signed-off-by: NAnton Khirnov <anton@khirnov.net>

Make AVIO_FLAG_ access constants work as flags, and in particular fix
the behavior of functions (such as avio_check()) which expect them to
be flags rather than modes.

This breaks API.

It doesn't look very useful as a public function.

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

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

AVIOContext.eof_reached should be used directly instead.
Signed-off-by: NRonald S. Bultje <rsbultje@gmail.com>

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

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

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

In the name of consistency:
put_byte           -> avio_w8
put_<type>         -> avio_w<type>
put_buffer         -> avio_write

put_nbyte will be made private
put_tag will be merged with avio_put_str
Signed-off-by: NRonald 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: NRonald S. Bultje <rsbultje@gmail.com>

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

Add an error message in case the user requests to write more than one file
and the path does not contain a "%d" or "%0Nd" pattern.
Signed-off-by: NJanne Grunau <janne-ffmpeg@jannau.net>

This also lists the objects from those two libraries as internal (by adding
the ff_ prefix) so that they can then be hidden via linker scripts.

Originally committed as revision 25539 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 25531 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 24079 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 23533 to svn://svn.ffmpeg.org/ffmpeg/trunk

Patch by Jean-Daniel Dupas, devlists shadowlab org

Originally committed as revision 22744 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

Originally committed as revision 22637 to svn://svn.ffmpeg.org/ffmpeg/trunk

Add this flag to img2 (fixes -vcodec copy to image2 in some cases)

Originally committed as revision 21773 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 21511 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 20694 to svn://svn.ffmpeg.org/ffmpeg/trunk

Patch by Samuli Valo: name surname picturall com

Originally committed as revision 20346 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 19538 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 19242 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 19241 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 19230 to svn://svn.ffmpeg.org/ffmpeg/trunk

patch by Jimmy Christensen, jimmy ghost dk

Originally committed as revision 19163 to svn://svn.ffmpeg.org/ffmpeg/trunk

Patch by Daniel Verkamp, daniel drv nu

Originally committed as revision 18077 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 16684 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 16664 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 16595 to svn://svn.ffmpeg.org/ffmpeg/trunk

They are now always defined to either 0 or 1.

Originally committed as revision 16590 to svn://svn.ffmpeg.org/ffmpeg/trunk