This makes possible the raise of one picture if the input has less than
the number of frames to analyze.

Fixes Ticket1992.

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

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

Since the conversion to refcounted frames, the tiff decoder
only wrote the metadata into its internal "picture" in its own context,
never exposing the metadata to the user, and eventually leaking the
metadata.

Instead, properly store the metadata directly into the frame being decoded into.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Always use the special filter for the first and last 3 columns (only).

Changes made in 64ed3976 slowed the filter to just under 3/4 of what it
was.  This commit restores the speed while maintaining identical output.

For reference, on my Athlon64:
1733222 decicycles in old
2358563 decicycles in new
1727558 decicycles in this
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

This field was only ever set and freed from avcodec, and not otherwise
used. However, because frames are refcounted now, avcodec cannot make any
assumptions about the lifetime of the frame metadata, which can result in
double-frees or leaked memory.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Coccinelle profile used:

  @@
  expression r, ctx, f, loglevel, str, flags;
  @@

  -if ((r = ff_get_buffer(ctx, f, flags)) < 0) {
  -    av_log(ctx, loglevel, str);
  -    return r;
  -}
  +if ((r = ff_get_buffer(ctx, f, flags)) < 0)
  +    return r;

  @@
  expression r, ctx, f, loglevel, str;
  @@

  -if ((r = ff_reget_buffer(ctx, f)) < 0) {
  -    av_log(ctx, loglevel, str);
  -    return r;
  -}
  +if ((r = ff_reget_buffer(ctx, f)) < 0)
  +    return r;

  @@
  expression r, ctx, f, loglevel, str, flags;
  @@

  -if ((r = ff_thread_get_buffer(ctx, f, flags)) < 0) {
  -    av_log(ctx, loglevel, str);
  -    return r;
  -}
  +if ((r = ff_thread_get_buffer(ctx, f, flags)) < 0)
  +    return r;

...along with some manual patches for the remaining ones.

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>

* qatar/master:
  hqdn3d: Fix out of array read in LOWPASS
  cabac: remove unused argument of ff_init_cabac_states()
  rawdec: fix a typo -- || instead of |

Conflicts:
	libavcodec/cabac.c
	libavcodec/h264.c
	libavfilter/vf_hqdn3d.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '37cb3b18':
  matroskadec: request a read buffer for the wav header

See: d0b45045Merged-by: Michael Niedermayer <michaelni@gmx.at>

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

* commit 'a8b60158':
  dsputil: convert remaining functions to use ptrdiff_t strides

Conflicts:
	libavcodec/dsputil.h
	libavcodec/dsputil_template.c
	libavcodec/h264qpel_template.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit 'a4472ac0':
  Add informative messages to av_log_ask_for_sample calls lacking them
  anm: Get rid of some very silly goto statements

Conflicts:
	libavformat/anm.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '202c2acc':
  vda: remove async decoder leftovers

Conflicts:
	libavcodec/vda_h264.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit 'a2816230':
  avframe: call release_buffer only if it is set

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

* commit 'fce68c93':
  pthread: unref the decoded but not returned frames on close.
Merged-by: Michael Niedermayer <michaelni@gmx.at>