Previously the device was returning EOF when the first sink was ending,
with the current change the device will continue to return frames until
all the sinks are EOF, which seems the most expected behavior.

Compute duration in microseconds, rather than in timebase units. Decrease
approximation errors.

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

This code causes infinite loops
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

* commit '581281e2':
  matroskadec: check realloc in lzo encoding
  matroska: honor error_recognition on unknown doctypes
  tiffdec: Add support for GRAY16LE.
  tiffenc: Add support for little endian RGB48 and GRAY16
  mpeg4: support frame parameter changes with frame-mt
  mpegvideo: check ff_find_unused_picture() return value for errors
  mpegvideo: release frame buffers before freeing them
  configure: msvc: default to 'lib' as 'ar' tool
  build: support some non-standard ar variants

Conflicts:
	libavcodec/h263dec.c
	libavcodec/mpegvideo.c
	libavcodec/tiff.c
	libavcodec/tiffenc.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

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

Reviewed-by: Tomas Härdin <tomas.hardin@codemill.se>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

Based on code by: Clément Bœsch <ubitux@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: Michael Niedermayer <michaelni@gmx.at>

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

Make all the compression encodings behave the same way.

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 1b3439b3.

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 '1b3439b3':
  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 749ddc14.

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>