avfilter/vf_pullup: Factor free_field_queue() out

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
avfilter/vf_pullup: fix memleak on error

Fixes CID1108604

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Merge remote-tracking branch 'cehoyos/master'

* cehoyos/master:
  Force one stream in caf muxer.

Merged-by: Michael Niedermayer <michaelni@gmx.at>
build: Do not add -g to HOSTCFLAGS

The flag is not unconditionally added to CFLAGS either and the
programs built on the host do not get habitually fed to a debugger.
configure: Detect newer (>=4.1) versions of MinGW32

The MinGW32 project is deprecating its old version macros.
configure: Add -D__USE_MINGW_ANSI_STDIO=1 to CPPFLAGS on MinGW32

This enables a more C99-compliant implementation of printf et al.
build: Merge pthreads/w32threads OBJS declarations
libavcodec/dvbsub: fix for Display Definition Segment

Given ETSI EN 300 743 V1.3.1 (2006-11), 7.2.1 Display definition segment
display window parameters are given in this order XMin, XMax, YMin, YMax
if  display_window_flag is set, but here this is not the case.
As a consequence the DVB subtitles are not displayed upon some videos.

Signed-off-by: Pierre-Yves MORDRET <pierre-yves.mordret@st.com>
Reviewed-by: Kieran Kunhya <kierank@obe.tv>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
avformat/network: check ff_socket_nonblock() return and print a debug message

Fixes CID1026744
Fixes CID1026743

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
avformat/ipmovie: Fix use of uninitialized memory in OPCODE_INIT_VIDEO_BUFFERS

Fixes: msan_uninit-mem_7ffe323a25f3_5929_ipmovie_interplayvideo_interplay_dpcm__bislogo.mve
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
avcodec/mjpegdec: use mallocz for progressive blocks

Fixes use of uninitialized memory
Fixes: msan_uninit-mem_7f849c599487_6828_mjpeg.avi
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
configure: remove redundant definition of __USE_MINGW_ANSI_STDIO

No need to define it twice on mingw-w64 >= v3.

Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
Merge commit 'a1d7d5524799bd90bc5d12e8b3063238cc0c02dd'

* commit 'a1d7d5524799bd90bc5d12e8b3063238cc0c02dd':
  build: Do not add -g to HOSTCFLAGS

Merged-by: Michael Niedermayer <michaelni@gmx.at>
Merge commit 'bdc111a162094c14660d1e88839d103a4d79e42a'

* commit 'bdc111a162094c14660d1e88839d103a4d79e42a':
  configure: Detect newer (>=4.1) versions of MinGW32

Merged-by: Michael Niedermayer <michaelni@gmx.at>
Merge commit '7c3388711b7243d059db39aa04b754baf2156934'

* commit '7c3388711b7243d059db39aa04b754baf2156934':
  configure: Add -D__USE_MINGW_ANSI_STDIO=1 to CPPFLAGS on MinGW32

Merged-by: Michael Niedermayer <michaelni@gmx.at>
Merge remote-tracking branch 'qatar/master'

* qatar/master:
  build: Merge pthreads/w32threads OBJS declarations

Conflicts:
	libavcodec/Makefile

Merged-by: Michael Niedermayer <michaelni@gmx.at>
avformat/asf: clear uninitialized areas of packets before returning them

Fixes use of uninitialized variables
Fixes msan_uninit-mem_7f839282b6ce_7273_msn08_VBRq70_800x600.wmv
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
avutil: Add deprecation ifdefs around obsolete intfloat code

This long-deprecated code should disappear at the next version bump.
configure: Move the bz2 and zlib checks below phtreads

There are alternate implementations of those libraries that use pthreads.
configure: Reorder pthreads checks

Some pthreads symbols might be present in libc (as shown on various *BSD)
but not all of them, leading to false positives.

Check for the most common compiler flags before the plain symbol check
to avoid known pitfalls.