swr-test: fix division by 0

Fixes CID733739
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

swr-test: check pointers before use

Fixes: CID733807, CID733806
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Merge remote-tracking branch 'qatar/master'

* qatar/master:
  build: simplify linking tools with cmdutils.o
  tiny_psnr: fix range calculation for sample size of 32 bits

Conflicts:
Makefile
tests/tiny_psnr.c

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

Merge commit '3dc06b6972cf389269e9c36ff0a4373f80f7149b'

* commit '3dc06b6972cf389269e9c36ff0a4373f80f7149b':
  tiny_psnr: check for specified sample size less than 1
  fate: improve md5sum utility selection
  rangecoder-test: Drop timer output that clutters stderr

Conflicts:
tests/tiny_psnr.c

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

Merge commit 'c1fcfdec75468009dc7de29a5d1c6adf3b2ef77d'

* commit 'c1fcfdec75468009dc7de29a5d1c6adf3b2ef77d':
  rangecoder-test: Return in case of an error
  build: simplify enabling of compat objects

Conflicts:
configure
libavutil/Makefile

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

tools/ffeval: do not use UNIX-specific /dev/std{in,out} files

Should fix behavior when the /dev/ directory is not defined (e.g. on
Windows).

examples: add README file with simple compilation instructions

Merge commit '66a1ccd7467ab1913cd8877114c6d4c2588bb12f'

* commit '66a1ccd7467ab1913cd8877114c6d4c2588bb12f':
  configure: simplify argument handling in check_ld

Conflicts:
configure

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

Merge commit '4c995fafd861f537360b3717901cdbed6a6844e7'

* commit '4c995fafd861f537360b3717901cdbed6a6844e7':
  configure: simplify get_version() function
  build: support asan and tsan toolchain shortcuts
  rmdec: Move SIPR code shared with Matroska demuxer to a separate file

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

gitignore: add *.dylib for those of us on Darwin/OS X systems.

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

mandelbrot: fix inner=period coloring routine

Fixes CID717571
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

x86/motion_est: widen before multiply.

This fixes CID700558, CID700557, CID700556
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

mxfenc: explicitly truncate continuity count.

The field is intended to overflow and have only its low 16bits stored.
This commit avoids the implicit truncation and clarifies that its
intended and not a bug

S326m section 7.6 ("Continuity count"):
> The continuity count word consists of 2 bytes allow-
> ing a number to be created by a modulo 65536
> counter (bits C15 to C0 in figure 7). The continuity
> count shall increment by 1 for each newly transmit-
> ted content package with the same SDTI source and
> destination addresses. The continuity count may
> be used to detect whether the content package
> sequence has been broken by an operation such as
> a routing switch.

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

msvideo1enc: fix interframe encoding

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

ffmpeg: Override r_frame_rate by corrected timebase only for interlaced streams

Fixes Ticket1664

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

utils: consider mpeg4 in mp4/mov to have a unreliable timebase

Partly fixes Ticket1664

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

ra288: assert order to be withinn supported range in do_hybrid_window()

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

msvideo1enc: fix initial keyframe value

keyframe was never set to anything but 1

Fixes CID733730
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

build: simplify linking tools with cmdutils.o

This avoids repeating cmdutils.o in both the prerequisites and
the link command.

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

tiny_psnr: fix range calculation for sample size of 32 bits

For a sample size of 32 bits, the shift would overflow producing
undefined results.  Incidentally, in the only test currently using
32-bit samples, the output matches the reference exactly on most
systems meaning the bad 'max' value is never used.

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

tiny_psnr: check for specified sample size less than 1

A zero or negative sample size is impossible and should be
reported as an error.

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

lavfi/ass: extend syntax for ass filter

Make the filter accept named options for the first argument, and update
documentation accordingly.

fate: improve md5sum utility selection

The 'md5sum' command is used with the -b flag so the presence test
must also use this flag.

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

tools/ffeval: include compat/getopt.c in case of missing system getopt()

examples/muxing: extend usage notice

Merge branch 'docu' of https://github.com/rdp/FFmpeg

* 'docu' of https://github.com/rdp/FFmpeg:
  docu: add word resize to scale filter, to make searching for the word resize simpler
  docu: change verb flite
  docu: add flite ffmpeg example
  docu: fix flite example

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

rangecoder-test: Drop timer output that clutters stderr

rangecoder-test: Return in case of an error

ffmpeg: check timebase validity before using it.

Found-by: Daemon404
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

doc/filters: pad examples should be a @subsection

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

docu: add word resize to scale filter, to make searching for the word resize simpler

Signed-off-by: rogerdpack <rogerpack2005@gmail.com>

docu: change verb flite

Signed-off-by: rogerdpack <rogerpack2005@gmail.com>

docu: add flite ffmpeg example

Signed-off-by: rogerdpack <rogerpack2005@gmail.com>

docu: fix flite example

Signed-off-by: rogerdpack <rogerpack2005@gmail.com>

lavf/audiointerleave: check return value of av_new_packet()

Fixes CID733709.

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

nutdec: check return value of av_new_packet()

Fixes CID733173.

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

dv: Set FS flag from AVFrame.top_field_first

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

dvdec: Set top_field_first from FS flag

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

dvdec: Move the VSC pack parsing to before avctx->execute()

This allows the next commit to parse the FS flag.

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

rawdec.c: Extract interlace information from quicktime flag if it exisits.

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

build: simplify enabling of compat objects

Add a configure function to pull in a compat object and set up
redirects in one operation.  This avoids duplicating conditions
across configure and makefiles.

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

configure: simplify argument handling in check_ld

Use the existing filter functions instead of open-coding the
separation of general flags and libraries.

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

configure: simplify get_version() function

awk alone can do this, no need for grep.

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

build: support asan and tsan toolchain shortcuts

flvdec: check return value of create_stream()

Fixes null pointer dereference. Fixes CID732242.

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

idcin: check chunk_size value before using it

Fixes integer overflow. Fixes CID732223.

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

img2dec: check return value of av_new_packet()

Fixes CID703626.

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

h264: use designated initializers for AVClass

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

examples/muxing: provide more information in case of avcodec_open2 failure

examples/muxing: add missing error checks

examples/muxing: fix case inconsistency in message

xbmenc: cosmetics: reindent

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

flacdec: replace -1 with AV_SAMPLE_FMT_NONE

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

movenc: fix tmcd parameters

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

shorten: fix U8 to be planar too

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

smacker: return more meaningfull error codes

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

Merge remote-tracking branch 'qatar/master'

* qatar/master:
  swscale: try to use mmap only if available
  configure: check for mprotect
  wmapro: use planar sample format
  wmalossless: output in planar sample format
  wmadec: use float planar sample format output
  shorten: use planar sample format
  lavc: update documentation for AVFrame.extended_data

Conflicts:
libavcodec/shorten.c

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

rmdec: Move SIPR code shared with Matroska demuxer to a separate file

lavf/txd: cosmetics: fix identation

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

lavf/mkv: avoid negative ts by default.

This fixes playback in some circumstances (like webm in firefox).
Regression after 2c34367b.

It is also matching the Matroska specifications:
http://matroska.org/technical/specs/notes.html, "The quick eye will
notice that if a Cluster's Timecode is set to zero, it is possible to
have Blocks with a negative Raw Timecode. Blocks with a negative Raw
Timecode are not valid."

tests: add fate-xface test

lavc: add xface image decoder and encoder

Based on libcompface code by James Ashton <James.Ashton@anu.edu.au>, and
relicensed to LGPL with the author's consent.

swscale: try to use mmap only if available

Some systems, e.g. Minix, have sys/mman.h defining MAP_ANONYMOUS without
providing (working) mmap and friends.  The mmx filter generation code
checks only for MAP_ANONYMOUS, not for availability of mmap itself which
leads to build errors on aforementioned systems.

This changes the conditional compilation to use mmap only if all the
required functions are available.

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

configure: check for mprotect

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

h264: Change asserts to av_asserts in ff_h264_fill_default_ref_list()

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

j2kenc: remove unneeded dereference

Fixes CID703723
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

ffmpeg: use framerate not fieldrate as filter input.

Fixes a problem described in Ticket1065

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

ffplay: Prevent 0/0 aspect from being passed on to lavfi

0/0 fails to be parsed

Fixes Ticket1814
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

wmapro: use planar sample format

wmalossless: output in planar sample format

wmadec: use float planar sample format output

shorten: use planar sample format

j2kdec: remove unneeded operation

Fixes CID717554
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

j2kdec: make curtilenum integer.

This fixes a potential crash.

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

tag_tree_decode: check node being non null

Fixes CID717843
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

compute_lpc_coefs: assert that normalize and fail have a supported combination

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

noise_bsf: fix division by 0

Fixes CID733737
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

lavc: update documentation for AVFrame.extended_data

flac_parser.c: fix issue with looping output for small files.

see trac 1345
https://ffmpeg.org/trac/ffmpeg/ticket/1345

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

bgmc: fix sizeof arguments (should fix CIDs: 700724 and 608084)

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

lavf: fix fps detection with PAFF H.264

Fixes Ticket1065
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

h264: fix parsing of old lossless profile (profile_idc == 144)

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

eatgq: raise error on unsupported macroblock mode

Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

ansi: by design nb_args may exceed the size of the args array, so guard accordingly

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

Merge remote-tracking branch 'qatar/master'

* qatar/master:
  avutil: Do not make ff_ symbols globally visible.
  avutil: Rename ff_set_systematic_pal2() ---> avpriv_set_systematic_pal2()
  build: tms470: work around glibc math.h problems
  configure: improve tms470 compiler usage with glibc

Conflicts:
libavcodec/bmpenc.c
libavcodec/rawdec.c

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

eatgq: fix small overread

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

Merge commit 'b5198a2637b7b45b0049a1d4b386a06f016f2520'

* commit 'b5198a2637b7b45b0049a1d4b386a06f016f2520':
  configure: tms470: add mapping for -mfpu=vfpv3-d16 flag
  configure: recognise Minix as OS
  configure: work around bug in ash shell
  eval-test: make table static const
  lavr: handle clipping in the float to s32 conversion
  nut: support pcm codecs not mapped in avi

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

Merge commit '1bd442c276e6688b43777a198cad0d7e3a92123f'

* commit '1bd442c276e6688b43777a198cad0d7e3a92123f':
  nut: prioritize native tags

Conflicts:
tests/ref/lavfi/crop
tests/ref/lavfi/crop_scale
tests/ref/lavfi/crop_scale_vflip
tests/ref/lavfi/crop_vflip
tests/ref/lavfi/null
tests/ref/lavfi/pixdesc
tests/ref/lavfi/pixfmts_copy
tests/ref/lavfi/pixfmts_crop
tests/ref/lavfi/pixfmts_hflip
tests/ref/lavfi/pixfmts_null
tests/ref/lavfi/pixfmts_pad
tests/ref/lavfi/pixfmts_scale
tests/ref/lavfi/pixfmts_vflip
tests/ref/lavfi/scale200
tests/ref/lavfi/scale500
tests/ref/lavfi/vflip
tests/ref/lavfi/vflip_crop
tests/ref/lavfi/vflip_vflip

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

doc/nut: Clarify what/where is the official nut specification

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

wv: do not report invalid stream duration

If total number of samples is -1 it means stream is of unknown length.

Fixes ticket #1777.

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

svq1dec: use log level that have more common sense

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

svq1dec: use more common way to check if result is not zero

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

svq1dec: check return value of get_bits1() in more common way

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

svq1dec: return more meaningful error codes

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

mp3enc: fix signed C99 overflow

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

dpxenc: fix signed c99 overflows

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

sws: get rid of C99 signed overflows try #2

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

paf: avoid C99 overflows

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

sws: avoid signed C99 overflows

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

swr/rematrix: fix C99 left shift overflow

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