Fixes Ticket5326
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

When multiple threads tries to call av_register_all(), the first thread sets
initialized to 1 and do the register process. At the same time, other thread might
also call av_register_all(), which returns immediately because initialized is set to 1
(even when it has not completed registering codecs). We can avoid this problem
if we set initialised to 1 while exiting from function.

Github: Closes #196

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Signed-off-by: Thomas Mundt <loudmax@yahoo.de>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Signed-off-by: Thomas Mundt <loudmax@yahoo.de>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

This should detect caes where these functions are called in unclean destinations

doc/examples/transcoding: Use the decoders pixel format if the encoder does not list which are supported

This affects rawvideo and wraped_avframe, no others are affected atm
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

This avoids enabling and building the x264rgb encoder when its actually not supported and
thus would not work
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

This avoids use of uninitialized variables and might make bugs in general
easier to reproduce
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Fixes: CID1338320
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Fixes regression with mplayers direct rendering and reduces buffer count
pressure in some cases
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Fixes regression of av_dump_format()
Fixes part of Ticket 5444
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Fixes lost codec delayy
Should fix Ticket5509
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

It's not expected to be set on video packets and causes issues in
ffmpeg.c.

and let ffmpeg scaler scale it
this impoves quality
Signed-off-by: Muhammad Faiz <mfcc64@gmail.com>

Fixes regression
Fixes Ticket5422 (The timebase is 1/25k but the fps are not 25k)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Fixes regression
Fixes Ticket5421
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Fifo was reallocating always to twice of the requested size.
This fixes it to reallocate to requested size, or twice of the
original size - whichever is greater.
Signed-off-by: Jan Sebechlebsky <sebechlebskyjan@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Since d607861c, service can not be NULL, only "0".
An UDP address with neither local port nor address leaves both
service and node to their default value, and POSIX specifies
that they are not allowed to be both NULL; "0" is equivalent
to an unspecified port for all currently known protocols.

Fix CID 1341570.

Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

(Ticket 4389)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Signed-off-by: Lou Logan <lou@lrcd.com>

Fixes invalid read.
Signed-off-by: Paul B Mahol <onemda@gmail.com>

Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>

Fixes Ticket5467 "Lossless j2k information no longer shown"

Based on suggestion by Hendrik Leppkes
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Found-by: ubitux
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Found-by: ubitux
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

This isnt really needed on most platforms but
fixes CID1362183
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

improve quality on axis drawing with yuv422p and yuv420p format
Signed-off-by: Muhammad Faiz <mfcc64@gmail.com>

Signed-off-by: Paul B Mahol <onemda@gmail.com>

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Missing docs found by: nevcairiel

RFC: should we add support so that the C field names always work as av option names/keys ?
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>