This avoids frame duplication for null output
avoiding unneeded computations.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

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

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

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

The file was written in 2006, it was never updated nor really used as
reference for SOC-like programs.
Signed-off-by: Timothy Gu <timothygu99@gmail.com>
Signed-off-by: Stefano Sabatini <stefasab@gmail.com>

Results of XvQueryAdaptors have to be freed with XvFreeAdaptorInfo.
Signed-off-by: Lukasz Marek <lukasz.m.luki@gmail.com>

In particular, allows the use of elbg in other FFmpeg libraries, required
by the pending elbg filter.

This allows for updating metadata from new metadata packets in the
middle of a stream (e.g., MPD streams). There still needs to be a signal
that there *is* new metadata, but this is at least gets the data into a
data structure.
Signed-off-by: Ben Boeckel <mathstuf@gmail.com>
Reviewed-by: wm4 <nfxjfg@googlemail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Fixes probetest failure
The threshold is choosen so that a all printale ascii string will never be
detected as vqf
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Fixes use after free if memory allocation fails.
Signed-off-by: Paul B Mahol <onemda@gmail.com>

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

Fixes out of array reads
Fixes part of: MSVR 440 (the other issues seem to have been fixed already)
Found-by: Jeremy Brown (jerbrown) of ReSP
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

The pullup filter does not work well with the fps filter, it
currently needs -r
Signed-off-by: Carl Eugen Hoyos <cehoyos@ag.or.at>

Explicitly set the number of bits per sample to stop
the avi muxer from guessing at 24 bits.
The result is that bits per pixel in the avi stream header
matches what other XSUB muxers produce, such as AVIAddXSubs.exe
Signed-off-by: Erik Olofsson <eaj.olofsson@gmail.com>
Reviewed-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Fix coordinates of the lower right corner of the text area.
Note that the coordinates are redundant as the size and
position of the text area are known.
Many decoders (including Sony Playstation 3, VLC and FFmpeg)
ignore the redundant coordinates.
Some hardware decoders need them for correct playback.

Verified on Philips DVD player models HTS7201 and DVP3380.

Fixes ticket #3031
Signed-off-by: Erik Olofsson <eaj.olofsson@gmail.com>
Reviewed-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

* cus/stable:
  libzvbi-teletextdec: propagate errors generated in page handler
  libzvbi-teletextdec: dont ignore memory allocation error silently
  libzvbi-teletextdec: output ass subtitles instead of plain text
  ass: move text_event_to_ass from textdec.c to ass.c and export it
  ass: fix error handling in ff_ass_add_subrect
  ass: factor out ff_ass_bprint_dialog
  libzvbi-teletextdec: use AVBPrint for whitespace cleanup
  libzvbi-teletextdec: use option constants instead of strings
  libzvbi-teletextdec: fix indentation after last commit
  libzvbi-teletextdec: support multiple teletext pages in a single packet
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* qatar/master:
  mpegaudioenc: Move some static tables to MpegAudioContext

Conflicts:
	libavcodec/mpegaudioenc.c
	libavcodec/mpegaudiotab.h
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '5d6a990c':
  mpegaudioenc: Remove broken integer-only quantization code path

Conflicts:
	libavcodec/mpegaudioenc.c

Mostly not merged, the integer code works fine.
Merged-by: Michael Niedermayer <michaelni@gmx.at>

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

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

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

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

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

This allows collecting statistics on probing scores and the amount of data
probing needed for various files and formats.
For example it can be used to find out which formats tend to need more
data for probing or which files are probed with less certain/lower scores
Reviewed-by: Stefano Sabatini <stefasab@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

The description has been moved to the FFmpeg wiki:
https://trac.ffmpeg.org/wiki/ViterbiAlgorithmSigned-off-by: Timothy Gu <timothygu99@gmail.com>

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

Signed-off-by: Marton Balint <cus@passwd.hu>

Signed-off-by: Marton Balint <cus@passwd.hu>

Signed-off-by: Marton Balint <cus@passwd.hu>

Fixes Ticket #1822.

Signed-off-by: Marton Balint <cus@passwd.hu>

Signed-off-by: Marton Balint <cus@passwd.hu>

Signed-off-by: Marton Balint <cus@passwd.hu>

Signed-off-by: Marton Balint <cus@passwd.hu>