Tested with the GraphicsMagick TIFF archive and Libav generated files.

Adds a flag context_reinit to MpegEncContext to relieable keep track
of frame parameter changes which require a context reinitialization.
This is required for broken inputs which change the frame size but
error out before the context can be reinitialized.

Fixes triggering an assert in avcodec_default_release_buffer()
introduced in 1b3439b30.

Thus comparsion against int64_t value will not raise warning
(from -Wextra set) about comparsion of unsigned and signed integer

commiter added () and changed the litteral to unsigned

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

As a sideeffect this makes the code more robust if a future change leaves
a path where it may be uninitialized otherwise.

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

* qatar/master:
  rv34: use ff_MPV_common_frame_size_change()
  mpegvideo: add reinit function for frame parameter changes

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

* commit '1b3439b3055b083df51d7f7838ecc6b3f708b15c':
  mpegvideo: move frame size dependent memory management to separate functions
  configure: add --toolchain option
  configure: Make the smoothstreaming muxer enable the ismv muxer
  smoothstreaming: Export the mp4 codec tags
  mov: check for EOF in long lasting loops
  avcodec: cleanup utils.c
  binkaudio: remove unneeded GET_BITS_SAFE macro
  binkaudio: use float sample format
  binkaudio: use a different value for the coefficient scale for the DCT codec

Conflicts:
	configure
	libavcodec/mpegvideo.c
	libavcodec/utils.c
	libavformat/Makefile

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

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

This adds support for the TI and Microsoft (lib.exe) variants of
the ar utility.

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

The GRAPH_DESCRIPTION string supplied to graph2dot must include explicitly
defined inputs and outputs which are not normally part of the command line
used in a real invocation.

This clarifies that requirement, and provides an example.

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

Fix regression introduced in 749ddc14fc.

Specialised functionality for size changes with the advantage of
supporting frame size changes during frame-based multithreading.

This is mainly required for frame parameter changes during frame based
multithreading but single threaded usage profits too from avoiding
ff_MPV_common_end()/ff_MPV_common_init() cycles.

This is a preparation for supporting frame size changes during
frame-based multithreading.

Filters now use null pointers to indicate having no input/output pads,
rather than empty lists of pads. We can't assume pad is non-null
anymore.

Signed-off-by: Bobby Bingham <uhmmmm@gmail.com>

Signed-off-by: Bobby Bingham <uhmmmm@gmail.com>

This allows creating canned shorthands for common combinations
of cc, ld etc.

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

Fixes Ticket1742

Based on patch by: Nikola Vranic <nikola.vranic@rt-rk.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

This info is crucial in knowing which stream to pick in an
automated setup.

Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>

This avoid a crash when the filter fails before config_input(),
typically with a syntax error in the next filter:
    select=gt(scene\,.4),select=fail

warning C4554: '>>' : check operator precedence for possible error; use parentheses to clarify precedence

Reviewed-by: Derek Buitenhuis

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

before they could become 33 bits

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

This doesn't fix any build failure, but the smoothstreaming muxer
opens a chained ismv muxer.

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

This fixes stream copy from a format that already has incompatible
codec tags set. The chained ismv muxer exports this same codec tag
list, so set it on this one as well, to allow the caller (and
lavf common code) to set them correctly.

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

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

fixes compile failure

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

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

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

A quite widespread pattern in the demuxer is read a 32bit unsigned
integer and then loop till this value is reached.

Checking for EOF prevents pathological situations.

Normal get_bits() already has overread protection.

Use planar for DCT codec, interleaved for RDFT codec.

Eliminates the need for vector_fmul_scalar() in each frame.

* qatar/master:
  flvenc: silence bogus warning
  configure: include flags in nm variable
  alsdec: fix misplaced parentheses.
  alsdec: check return values.
  alsdec: fix number of decoded samples in first sub-block in BGMC mode.
  alsdec: Fix out of ltp_gain_values read.
  alsdec: Check that quantized parcor coeffs are within range.
  alsdec: check opt_order.

Conflicts:
	configure
	libavcodec/alsdec.c
	libavformat/flvenc.c

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

* commit '23aae62c2cb4504a09ceb8cd0cabc1c8b260f521':
  alsdec: Check k used for rice decoder.
  avfiltergraph: silence an uninitialized variable warning
  xsubenc: reindent
  lavc: replace AVCodecContext.encode with subtitle-specific callback
  lavc: add const to private codec class initialization.
  avconv: don't pass a bogus parameter to avfilter_graph_create_filter().
  id3v2: strdup the genre name explicitly.
  lavf/id3v2: do not export empty fields.
  buffersrc: add const to the AVFrame* argument of av_buffersrc_write_frame()
  lavfi: replace empty input/output lists with null pointers

Conflicts:
	ffmpeg_filter.c
	libavcodec/alsdec.c
	libavcodec/dvdsubenc.c
	libavcodec/utils.c
	libavcodec/v210dec.h
	libavfilter/af_channelsplit.c
	libavfilter/avfiltergraph.c
	libavfilter/buffersrc.c
	libavfilter/src_movie.c
	libavfilter/vf_ass.c

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

The compiler fails to figure out that enc->codec_type can only
have 3 different values.
Thus when an if/else is encountered it triggers on the possibility
of the else case has not initialized the flags variable.

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

Signed-off-by: Bobby Bingham <uhmmmm@gmail.com>

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

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

they keep showing up if i grep for non av assert()

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

gcc produces binary identical output relative to before this change

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

This simplifies ensuring proper flags are used when the default
is overridden by the system or on the command line.

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