lavf: fix integer overflows

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

h264: dont mess with frame gaps on second fields.

Fixes assertion failure

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

ffmpeg: replace magic number with VSYNC_CFR

lavf: Provide a monotonic timestamp to the outside world

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

mpegvideo_enc/rv20: width and height must be multiple of 4

RealPlayer does not play rv20 files when sizes are not multiple of 4

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

doc/filters: remove @example use for showing syntax

I forgot to merge with the previous commit.

doc/filters: extend syntax description for transpose, and add examples

doc/filters: add basic crop examples

Use it to show difference between shorthand and named parameters.

doc/filters: itemize crop examples

lavfi/crop: add support to option parsing

Also fix documentation accordingly.

dirac_parser: check prev_pu_offset before using it

Fixes out of array read

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

mpegvideo_enc/rv10: width and hieghtmust be multiple of 16

RealPlayer does not play correctly rv10 files when sizes are not multiple of 16

"RealVideo Encoder 1.0 supports any size image that is a multiple of sixteen pixels."

Reviewed-by: Nicolas George <nicolas.george@normalesup.org>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

lavd/dshow: rename dshow class name

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

Merge remote-tracking branch 'qatar/master'

* qatar/master:
  vp56: release frames on error

Conflicts:
libavcodec/vp56.c

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

lavfi/overlay: clarify/fix comment, add a few empty lines to ease readability

lavfi/overlay: remove duplicated definition of ff_null_get_video_buffer()

Simplify.

lavfi/avfilter.h: clarify doxy for AVFilterLink.out_buf

Merge commit 'bb675d3ac6d722d5e117ae9042a996b55ca05b1d'

* commit 'bb675d3ac6d722d5e117ae9042a996b55ca05b1d':
  vp56: make parse_header return standard error codes

Conflicts:
libavcodec/vp56.c

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

fate: update fate for 1a490df12fd9

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

doc/APIchanges: fill empty git commit hashes and dates

ffprobe: show pkt_size in frame

Fix trac ticket #2027.

lavc: add pkt_size field to AVFrame

fate: check if rsync has the contimeout option

rsync on osx misses the --contimeout option

Signed-off-by: Jean First <jeanfirst@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

flashsv2_prime: check block before using it.

Fixes null pointer dereference

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

dcadec: check xch_base_channel against channel_order_tab.

Fix null pointer dereference

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

mp3on4: fix null pointer dereference

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

dnxhddec: fix CID changed check.

Fixes Null pointer dereference

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

fate: update asyncts reference

We cannot update the existing file because this would break
ffmpeg 1.0, which uses it

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

lavf/segment: provide more debug feedback when a new segment starts

lavf/segment: add missing flags to segmenter option constants

ass_split_section: dont overread array

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

westwood_vqa: fix null pointer dereference

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Merge remote-tracking branch 'qatar/master'

* qatar/master:
  ivi_common: check that scan pattern is set before using it.

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

Merge commit '07acdd651d1e2f4cfa5f610e616e70e323bb69cd'

* commit '07acdd651d1e2f4cfa5f610e616e70e323bb69cd':
  ivi_common: use proper logging context in ivi_decode_blocks().
  ivi_common: make some functions and tables static.
  asyncts: ignore min_delta only if first_pts is set

Conflicts:
libavcodec/ivi_common.c
libavcodec/ivi_common.h

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

Merge commit 'c0dc57f1264dad1e121772d03abdb9e14ed8857f'

* commit 'c0dc57f1264dad1e121772d03abdb9e14ed8857f':
  asyncts: merge two conditions
  x86inc: fully concatenate tokens to fix macro expansion for nasm
  h264: initialize frame-mt context copies properly

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

Merge commit '6a27ae28f9bde981e85c82cf5bf42c5f43fb6f13'

* commit '6a27ae28f9bde981e85c82cf5bf42c5f43fb6f13':
  mpegvideo: treat delayed pictures as used

Conflicts:
libavcodec/h264.h

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

Merge commit 'bd255f9feb4deea4c990e582f0ba3b90d7b64b4c'

* commit 'bd255f9feb4deea4c990e582f0ba3b90d7b64b4c':
  lavc: set frame parameters after decoding only if necessary

Conflicts:
libavcodec/utils.c

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

h264: remove low_delay/has_b_frame setting code from nal loop

This code is now executed in h264_set_parameter_from_sps()

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

Merge commit '072be3e8969f24113d599444be4d6a0ed04a6602'

* commit '072be3e8969f24113d599444be4d6a0ed04a6602':
  h264: set parameters from SPS whenever it changes
  asyncts: cosmetics: reindent

Conflicts:
libavcodec/h264.c

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

Merge commit 'b35e5d985dd12acf9a0aaa52334134edcf35d68e'

* commit 'b35e5d985dd12acf9a0aaa52334134edcf35d68e':
  doc: improve documentation for the asyncts filter first_pts option
  asyncts: fix the asyncts behavior when using the first_pts option

Conflicts:
libavfilter/af_asyncts.c

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

Merge commit '8083332c2de9ee189f96844ff4c2d9be1844116f'

* commit '8083332c2de9ee189f96844ff4c2d9be1844116f':
  asyncts: use clipped delta value when setting resample compensation
  asyncts: fix flushing of final samples at EOF
  vp6: properly fail on unsupported feature

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

vp56: release frames on error

Fixes CVE-2012-2783

CC: libav-stable@libav.org

vp56: make parse_header return standard error codes

Returning 0 for failure is misleading.

CC: libav-stable@libav.org

ivi_common: check that scan pattern is set before using it.

Fixes CVE-2012-2791.

CC: libav-stable@libav.org

ivi_common: use proper logging context in ivi_decode_blocks().

ivi_common: make some functions and tables static.

sauce: test filetype correctly for datatype 5 (binary text)

mem: minor simplification of the alignment hack code

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

audioconvert/arm: require alignment of 16

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

audioconvert: support simd code with specific alignment requirements.

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

configure/arm: print if thumb mode is enabled

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

g729dec: check pitch_delay_int.

Fix out of array read

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

asyncts: merge two conditions

asyncts: ignore min_delta only if first_pts is set

nuv: dont try to copy an empty frame

Fixes assertion failure

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

x86inc: fully concatenate tokens to fix macro expansion for nasm

Fixes build errors with nasm introduced in 6f40e9f070f7 for stack
memory alignment. Noticed by BugMaster.

flvenc: don't write random data if seek fails

The FLV muxer tries to update the header in write_trailer, which is
impossible if writing to a pipe or network stream. Don't write header
data if seek to header fails.

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

docs: -asyncts has been replaced by aresample not asyncts in ffmpeg

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

lavf/segment: add segment_start_number option

Consistent with the image2 muxer.

lavf/segment: add function set_segment_filename()

Factorize.

mpegvideo: treat delayed pictures as used

This requires to move the avcodec_default_free_buffers() call to
ff_MPV_common_end() since otherwise delayed pictures would get freed
during a size change.

lavc: set frame parameters after decoding only if necessary

Direct rendering capable decoders call get_buffer() which will set the
frame parameters.

Prevents frames with wrong parameters when a decoder outputs delayed
frames after a resolution or pixel format change.

h264: set parameters from SPS whenever it changes

Fixes a crash in the fuzzed sample sample_varPAR.avi_s26638 with
alternating bit depths.

h264: initialize frame-mt context copies properly

doc: improve documentation for the asyncts filter first_pts option

Note the time base for the option. Add an additional example description.

asyncts: use clipped delta value when setting resample compensation

The max_comp option is supposed to limit maximum compensation, but
currently the clipped value is not actually used.

asyncts: cosmetics: reindent

asyncts: fix the asyncts behavior when using the first_pts option

Currently it will do padding, but it does not properly handle
start-of-stream trimming as documented.

asyncts: fix flushing of final samples at EOF

aresample: increase n_out buffer size a bit to reduce delay in some corner cases

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

mpegts: check av_new_stream() return value.

Fixes CID703728
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

vp6: properly fail on unsupported feature

Interlacing is not supported at all and mismanaged down the normal
codepaths causing possible buffer management issues.

CC: libav-stable@libav.org

qt-faststart: Check offset_count

Fixes CID733836
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

cavsdec: check ff_get_buffer() return value

Fixes CID747721
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

snowenc: check ff_get_buffer() return value

Fixes CID747722
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

svq1enc: check ff_get_buffer() return value

Fixes CID747723
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

alsdec: propagate error codes in read_block()

Reviewed-by: Thilo Borgmann <thilo.borgmann@googlemail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

alsdec: make return checking for read_*_block_data() consistent

Reviewed-by: Thilo Borgmann <thilo.borgmann@googlemail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

alsdec: Use AVERROR_INVALIDDATA in read_const_block_data

Reviewed-by: Thilo Borgmann <thilo.borgmann@googlemail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

mips: ac3 downmix updated to the new data layout.

Signed-off-by: Nedeljko Babic <nbabic@mips.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

lavf/matroskaenc: check for overflow in display width.

Merge remote-tracking branch 'qatar/master'

* qatar/master:
  aacdec: Fix an off-by-one overwrite when switching to LTP profile from MAIN.
  x86inc: fix stack alignment on win64
  rtpproto: Remove unused defines

Conflicts:
libavcodec/aacdec.c

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

Merge commit 'f3f60dcbdd6ff2201526a603fe28293975bb7667'

* commit 'f3f60dcbdd6ff2201526a603fe28293975bb7667':
  rtpdec_mpeg4: Cosmetic cleanup
  rtpdec: Cosmetic cleanup of the header
  rtpdec: Get rid of a useless _s suffix on a struct name

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

Merge commit '7941159df6aad2d219e2a7184489be7a735dd944'

* commit '7941159df6aad2d219e2a7184489be7a735dd944':
  rtpdec/enc: Remove outdated/useless/misleading comments
  rtpdec: Improve some comments
  rtpdec: Remove unused context variables
  rtpdec: Limit writing to the buffer size
  svq1: Fix building with -DDEBUG
  svq1: return meaningful error codes.

Conflicts:
libavcodec/svq1dec.c

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

Merge commit '998fdcff41bbda8ef13c991743376556f910efa9'

* commit '998fdcff41bbda8ef13c991743376556f910efa9':
  lavc: replace some forgotten instances of PixelFormat with AVPixelFormat
  svq1: unmacroify macros used only once.

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

Merge commit '95baf701db719ecad6b31000429e20eca2526ed6'

* commit '95baf701db719ecad6b31000429e20eca2526ed6':
  svq1: deMpegEncContextize

Conflicts:
libavcodec/svq1dec.c

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

lavfi: drop ff_null_start_frame/end_frame/draw_slice.

The functions have become unused

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

lavfi/select: assign NAN to ignored values

Also log scene value. Improve debugging.

lavfi/select: add support to options

Add options introspection, and improve error feedback.

lavfi/select: in select_frame(), rename picref -> ref

The variable is now used also for audio frames.

doc/filters: itemize select/aselect examples

Improve rendering.

lavfi: mv vf_select.c -> f_select.c

The file now contains also an audio select implementation. Also move the
aselect/select documentation from video filters to the multimedia filters
section.

lavfi: add aselect audio variant of select

lavfi/select: remove deprecated and unused poll_frame() callback

Simplify.

aacdec: Fix an off-by-one overwrite when switching to LTP profile from MAIN.

Found-by: pawlkt
CC: libav-stable@libav.org

lavf/matroskaenc: use integers to for display size.

Avoid rounding differences between x86_32 and x86_64.
Fix trac ticket #1997.

x86inc: fix stack alignment on win64

Signed-off-by: Martin Storsjö <martin@martin.st>

mpeg1video: fix regression with slices != threads

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

mpeg1video: support multi threaded slice encoding.

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

adpcm: fix off by 1 error and out of array access in DK4

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>