Simplify, and avoid the need for multiple escaping levels.

The function strtok_r() is part of the POSIX.1 specification, but is not
available on some platforms. We provide an internal implementation, so we
do not need to rely on a platform implementation.

So they can be used by other escaping routines.

The new code avoids to call av_malloc/av_free when escaping is needed
(possibly faster), avoids an integer overflow in case of a huge
string, and provides feedback when a string cannot be escaped.

When a string cannot be escaped, a special string is printed instead.

Fixes Ticket563
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

I just found this issue while debuging, i dont have a testcase.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Fixes Ticket67
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

* qatar/master:
  avconv: add presets
  rtsp: Expose the flag options via private AVOptions for sdp and rtp, too
  rtsp: Make the rtsp flags avoptions set via a define
  rtpenc: Set a default video codec
  avoptions: Fix av_opt_flag_is_set
  rtp: Fix ff_rtp_get_payload_type
  doc: Update the documentation on setting options for RTSP
  rtsp: Remove the separate filter_source variable
  rtsp: Accept options via private avoptions instead of URL options
  rtsp: Simplify AVOption definitions
  rtsp: Merge the AVOption lists
  lavfi: port libmpcodecs delogo filter
  lavfi: port boxblur filter from libmpcodecs
  lavfi: add negate filter
  lavfi: add LUT (LookUp Table) generic filters
  AVOptions: don't segfault on NULL parameter in av_set_options_string()
  avio: Check for invalid buffer length.
  mpegenc/mpegtsenc: add muxrate private options.
  lavf: deprecate AVFormatContext.file_size
  mov: add support for TV metadata atoms tves, tvsn and stik

Conflicts:
	Changelog
	doc/filters.texi
	doc/protocols.texi
	libavfilter/Makefile
	libavfilter/allfilters.c
	libavfilter/avfilter.h
	libavfilter/formats.c
	libavfilter/internal.h
	libavfilter/vf_boxblur.c
	libavfilter/vf_delogo.c
	libavfilter/vf_lut.c
	libavformat/mpegtsenc.c
	libavformat/utils.c
	libavformat/version.h
	libavutil/opt.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

http://umezawa.dyndns.info/archive/utvideo/

Add a wrapper for libutvideo's decoder.

This supports decoding the following FOURCCs:
    ULY0 - 4:2:0 YCbCr
    ULY2 - 4:2:2 YCbCr
    ULRG - RGB
    ULRA - RGBA

Also, bump version.
Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

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

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

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

This allows setting the filter_src option for these demuxers, too,
which wasn't possible at all before (where the option only was set
via URL parameters for RTSP).
Signed-off-by: Martin Storsjö <martin@martin.st>

This helps sharing these options with the sdp and rtp demuxers.
Signed-off-by: Martin Storsjö <martin@martin.st>

avconv doesn't map video streams to a muxer without specifying a
manual stream mapping if the default video codec is CODEC_ID_NONE.
Signed-off-by: Martin Storsjö <martin@martin.st>

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

With the changes in 3b3ea346,
"Remove all uses of deprecated AVOptions API", av_opt_flag_is_set
was broken, since it now uses av_opt_find, which doesn't return
named constants unless a unit to look for the constant in is given.

This broke enabling LATM encapsulated AAC output in RTP.
Signed-off-by: Martin Storsjö <martin@martin.st>

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

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

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

It was broken in 3b3ea346
"Remove all uses of deprecated AVOptions API", where any
presence of a payload_type AVOption caused its value to
be returned, even if it wasn't set (and thus had the default
-1 value).

This caused the RTP muxer to be broken.
Signed-off-by: Martin Storsjö <martin@martin.st>

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

Read it as a flag from the flags field instead.
Signed-off-by: Martin Storsjö <martin@martin.st>

Eventually, the old way of passing options by adding
stuff to the URL can be dropped.

This avoids having to tamper with the user-specified URL to
pass options on the transport mode. This also works better
with redirects, since the options don't need to be parsed out
from the URL.
Signed-off-by: Martin Storsjö <martin@martin.st>

Use defines for shortening common parts, omit the .dbl named
initializer (since it's the first element in the union).
Signed-off-by: Martin Storsjö <martin@martin.st>

This eases adding options that are common for both. The
AV_OPT_FLAG_EN/DECODING_PARAM still indicates whether they belong
to the muxer or demuxer.
Signed-off-by: Martin Storsjö <martin@martin.st>

The ported filter supports named option parsing and more YUV formats.
Signed-off-by: Anton Khirnov <anton@khirnov.net>

With the following additions:
* support to gray format
* support to yuva420p format
* parametric luma/chroma/alpha radius
* consistency check on the radius values, avoid crashes with invalid values
Signed-off-by: Anton Khirnov <anton@khirnov.net>

This filter is a simple wrapper around the LUT filter.
Signed-off-by: Anton Khirnov <anton@khirnov.net>

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

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

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