* commit 'be101bc1':
  avconv: create the complex filtergraphs earlier

Conflicts:
	ffmpeg_opt.c
Merged-by: Michael Niedermayer <michael@niedermayer.cc>

* commit '1959351a':
  avconv: move the no streams failure to open_output_file()
Merged-by: Michael Niedermayer <michael@niedermayer.cc>

* commit 'ab7b0389':
  avconv: factor out the output stream initialization

Conflicts:
	ffmpeg.c
Merged-by: Michael Niedermayer <michael@niedermayer.cc>

* commit 'bd2ab27c':
  avconv: use read_file() for reading the 2pass stats

Conflicts:
	cmdutils.c
	cmdutils.h
	ffmpeg_opt.c
Merged-by: Michael Niedermayer <michael@niedermayer.cc>

* commit '6d5d9246':
  avconv: move handling the 2pass logfile into avconv_opt

Conflicts:
	ffmpeg.c
Merged-by: Michael Niedermayer <michael@niedermayer.cc>

* commit '59245e0c':
  avconv: set the encoding/decoding_needed flags earlier

Conflicts:
	ffmpeg.c
Merged-by: Michael Niedermayer <michael@niedermayer.cc>

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

* commit '56c2f377':
  avconv: drop update_sample_fmt()

Conflicts:
	ffmpeg.c

No change as the removed code is not in FFmpeg
Merged-by: Michael Niedermayer <michael@niedermayer.cc>

* commit 'e61f3984':
  asfdec: make nb_sub to be unsigned int
Merged-by: Michael Niedermayer <michael@niedermayer.cc>

* commit '2883ef34':
  asfdec: read the replicated data in a separate function
Merged-by: Michael Niedermayer <michael@niedermayer.cc>

* commit '0989d3ad':
  asfdec: convert condition for the replicated data reading to be safer
Merged-by: Michael Niedermayer <michael@niedermayer.cc>

* commit '40662728':
  asfdec: do not read replicated data when their length is 0
Merged-by: Michael Niedermayer <michael@niedermayer.cc>

Since global options are processed before all the other options now, we
do not have to try creating the complex filtergraphs several times
anymore, it is enough to do it once after the input files are opened.

It is a better place for it, there is no reason to wait until
transcode_init().

Also, drop the now unused cmdutils_read_file(). There is no reason to
have two functions doing essentially the same thing.

It more logically belongs there.

This will be useful in the following commits.

There is only one decoder left that supports this (libopus, which is not
used by default since we have a native one) and this code goes against
the avconv design, since it propagates information back from the encoder
to decoder.

number of subpayloads should be always positive
Signed-off-by: Anton Khirnov <anton@khirnov.net>

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

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

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

Fixes ticket4718
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Recent ICC versions that define GCC as >= 4.5 (like ICC 13) apparently can't
optimize the generic C versions of av_bswap*() on their own.
Reviewed-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: James Almer <jamrial@gmail.com>

Intel compiler also defines __GNUC__, so the Intel specific intrinsics were not
really being used.
Reviewed-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: James Almer <jamrial@gmail.com>

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

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

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

Can be used to fix Ticket3714
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

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

Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

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

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

avoids null pointer dereference
Fixes: signal_sigsegv_d5de40_964_vp80-00-comprehensive-010.ivf with memlimit of 1048576

Found-by: Samuel Groß, Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Fixes: signal_sigsegv_d5de23_967_vp80_00_comprehensive_010.ivf with memlimit 524288

Found-by: Samuel Groß, Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Fixes null pointer dereference
Fixes: signal_sigsegv_b02a96_280_RL_420p_ffdirac.drc with memlimit of 67108864

Found-by: Samuel Groß, Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

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

Avoids leaving stale pointers
Fixes: signal_sigabrt_7ffff70eccc9_819_sabtriple.rm with memlimit 536870912

Found-by: Samuel Groß, Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

These where apparently forgotten when AVFrames where moved into libavutil
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>