* commit '29dcde2b':
  h264: copy nal_length_size in update_thread_context
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '440e8dd3':
  h264: drop a comment that carries no useful information
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '11f024ef':
  h264: move freeing the escaped RBSP buffer to free_context()
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit 'ee62b364':
  h264: eliminate ff_h264_set_parameter_from_sps()

Conflicts:
	libavcodec/h264.c
	libavcodec/h264.h
	libavcodec/h264_slice.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '54986d6d':
  h264: move context reinit lower down in update_thread_context()

Conflicts:
	libavcodec/h264_slice.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit 'a6cd1544':
  h264: move the DPB init/uninit to init_context()/free_context()

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

* commit '9d33bab5':
  h264: drop H264Context.ouputed_poc

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

* commit '27b0e6eb':
  h264: drop needs_realloc
Merged-by: Michael Niedermayer <michaelni@gmx.at>

It does not make sense to copy is_avc without copying this as well. This
patch should not change anything for now, but will have an effect in
later commits.

It does not logically belong in free_tables(), since it's not allocated
in alloc_tables() and its size has nothing to do with the frame size.

That function currently does two things -- reinitializing the DSP
contexts and setting low_delay based on the SPS values.

The former more appropriately belongs in h264_slice_header_init(), while
the latter only really makes sense in decode_slice_header().

The third call to ff_h264_set_parameter_from_sps(), done immediately
after parsing a new SPS, appears to serve no useful purpose, so it is
just dropped.

Also, drop now unneeded H264Context.cur_chroma_format_idc.

It uses some fields from the SPS, which is not yet set where the reinit
is called currently.

Currently, the DPB is initialized in alloc_tables() and uninitialized in
free_tables(), but those functions manage frame size-dependent
variables, so DPB management does not logically belong in there.

Since we want the init/uninit to happen exactly once per the context
lifetime, init_context()/free_context() are the proper place for this
code.

It is only set, but never used for anything.

It is not needed anymore since switching to refcounted frames.

* commit '0ac8ff61':
  avresample: Reallocate the internal buffer to the correct size
Merged-by: Michael Niedermayer <michaelni@gmx.at>

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

* commit '82de8d71':
  mpegts: Update the PSI/SI table only if the version change

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

* commit '0c69164f':
  h263: Convert function to macro

Conflicts:
	libavcodec/h263.h
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '59dfc2b0':
  h263: Drop commented-out code and a related otherwise unused function
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit 'c3418201':
  jpeglsenc: Mark codec as init-thread-safe and init-cleanup
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '3919a457':
  jpeglsenc: Check memory allocations

Conflicts:
	libavcodec/jpeglsenc.c

See: 48214956Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit 'f5ba67ee':
  flacenc: Move a scratch buffer to struct used by the function

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

Fixes the corner case in which the internal buffer size
is larger than input buffer provided and resizing it
before moving the left over samples would make it write
to now unallocated memory.

Bug-Id: 825
CC: libav-stable@libav.org
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

The existing check has two problems:
 1) i + count can overflow, so that the check '< 256' returns true.
 2) In the (i == 'N') case occurs a j-- so that the loop runs once more.

This can trigger the assertion 'nut->header_len[0] == 0' or cause
segmentation faults or infinite hangs.
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

This fixes a segmentation fault when accessing the metadata.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

If a PAT is finished while a PMT section filter is opened but
not yet finished, the PMT section filter is closed and all
the received data is discarded.

This is usually not an issue but some multiplexers (With very
quick PAT/PMT repetition settings) consistently emit a PMT
section start, then a PAT, and then the rest of the PMT,
causing the aforementioned behavior to result in no PMT being
finished.

In the most pathologic situation the stream information are lost
and the probe fallback miscategorizes subtitles as mp3 audio.

Avoid the issue through eliminating redundant PSI/SI table
updates by checking their version field, which is required by
the standard to be incremented on every change no matter how
minor.

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

A negative frame rate triggers an av_assert2 in av_rescale_rnd.
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

Check extended sync word for 16-bit LE and BE core streams to reduce
probability of alias sync detection. Previously sync word extension was
checked only for 14-bit streams.

This follows up the similar change in avcodec/dca_parser.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Fixes a memory leak on init failure.

Convert exisiting free functions to av_freep() to avoid accidental
double frees, and always intialize all buffers to NULL.

This avoids allocating/freeing memory at every function call,
checking its return value, and carrying the error around.

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

s->decoded_buffer is allocated with a min_size of:
    2 * FFALIGN(blockstodecode, 8) * sizeof(*s->decoded_buffer)

Then it is assigned to s->decoded[0] (and s->decoded_buffer + FFALIGN(blockstodecode, 8)
to s->decoded[1]) and passed as out buffer to decode_array_0000.

In this function 64 elements of the out buffer are written
unconditionally and outside the array if blockstodecode is too small.

This causes memory corruption, leading to segmentation faults or other
crashes.

Thus change decode_array_0000 to write at most blockstodecode elements
of the out buffer.
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

AVOpenCLDeviceNode and AVOpenCLPlatformNode used fixed static buffer for holding the device and platform name.
This patch modifies these structures to use pointers instead. The memory required to hold the names is
now dynamically allocated, the size for which is determined by querying appropriate OpenCL runtime APIs.
Signed-off-by: Maneesh Gupta <maneesh.gupta@amd.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>