Some streams don't contain these.
Signed-off-by: Martin Storsjö <martin@martin.st>

Also add missing trailing commas, break long codec_tag lines and
add spaces in codec_tag declarations.
Signed-off-by: Martin Storsjö <martin@martin.st>

Found-by:ramiro
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

This allows falling back to a binary search if the file contains no
index, thus fixing seeking in such files (e.g. luckynight.wma).

Prevents crash (double free) when free()ing the original packet.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org

Seeking back on EOF will reset the EOF flag, causing us to re-enter
the loop to find the next marker in the ASF file, thus potentially
causing an infinite loop.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org

They cause various issues further down in demuxing.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org

This prevents failed assertions further down in the packet processing
where we require non-negative values for packet_size_left.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org

This allows dropping the av_unused argument from them.

Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

fixes memleak of side data

Having a somehow off seeking is better than having none at all.
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

The asf_read_pts should read the bitstream directly.

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

Idea-by: ubitux
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

This reverts part of:
	commit e65ab9d9
	Author: Mans Rullgard <mans@mansr.com>
	Date:   Wed Jun 1 17:26:27 2011 +0100

	    Remove unused variables

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Specifically av_update_cur_dts(), av_seek_frame_binary() and
av_gen_search().

They are not supposed to be called outside lavf.

It's used in libavdevice.

Trivial replacements with sed are done in this commit:
sed 's/av_new_stream(\([^)]*\), 0)/avformat_new_stream(\1, NULL)/'

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

This way user apps can choose to skip such content.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

This avoid retrying to read ASF index in files for every
attempt to seek. This makes a big difference to protocols
with slow seeking (for example http)
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

This reduces problems when underlying protocol is not
seekable even if marked as such or if the file has been
cut short.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

It's more readable and less prone to breakage.

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

These statements cannot be reached and are thus not needed.
This removes a number of compiler warnings.
Signed-off-by: Mans Rullgard <mans@mansr.com>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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