configure: use pkg-config to detect libbluray

The current configure fails when static libbluray is compiled with libxml2
support.

Signed-off-by: Timothy Gu <timothygu99@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit baa650cc7946a9eb1cf5a083f61a581a97122f03)
Signed-off-by: Timothy Gu <timothygu99@gmail.com>

Conflicts:
	configure
avidec: Let the inner dv demuxer take care of discarding

Fixes ticket #1796.
(cherry picked from commit c8f0b20b4a6bb6691928789d83e4b02896969848)

Conflicts:
	libavformat/avidec.c
Merge remote-tracking branch 'TimothyGu/release/1.2' into release/1.2

* TimothyGu/release/1.2:
  configure: use pkg-config to detect libbluray

Merged-by: Michael Niedermayer <michaelni@gmx.at>
avcodec/vorbisdec: use the stored previous window type only when the actual previous is not known

Fixes Ticket3432

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 5171ae781a240cac3860c20f9aefc6d1b2c61cac)
avformat/flvdec: discard inconsistent timestamps

Fixes Ticket3425

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit dbc3e1109cddd7ab653dce0f7758bad17b94803d)

Conflicts:
	libavformat/flvdec.c
avcodec/h264: be more tolerant on what pixel format changes trigger reinits

Fixes Ticket3260

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 8e92ff25469f75f5c1fcbb9ba5721cea341ca34a)

Conflicts:
	libavcodec/h264.c
avcodec/adpcm: ADPCM_IMA_DK3 packets are padded to 16-bit packet boundary

Fixes ticket #3461.

Signed-off-by: Peter Ross <pross@xvid.org>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit d1bb17940dd242e56541775318636bcbe3eab73d)
avcodec/adpcm: squelch 'mismatch in coded sample count' warning for AV_CODEC_ID_ADPCM_EA_R2/3

These ADPCM codecs include a per-frame flag that enables a raw 16-bit mode. Therefore
the the number of samples returned by get_nb_samples() is only ever approximate.

Fixes ticket #3460.

Signed-off-by: Peter Ross <pross@xvid.org>
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 7380201451a2edfb240cd356579c4c39a87cf5bd)
avutil/timestamp: Warn about missing __STDC_FORMAT_MACROS for C++ use

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 8b02dfd37cb3bc9521fc6e1f5b5f13c80d144cd2)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
swscale/x86/swscale: fix missing xmm clobbers in yuv2yuvX_sse3()

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 6c47a4e972485e5f0c812159373f703c6f1d089f)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
avcodec/h263dec: Fix use of uninitialized memory from the bitstream buffer

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
avformat/mov: only force parsing for video tracks if stss is empty

Fixes playback of some AAC streams, which are otherwise mangled by the
parser, and stss is typically only valid for video anyway.

Fixes a regression since e41ea866.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 019247bdc326a90bf20d3ce5d2413cc642e8bb08)
avformat/mov: fix keyframe flags for sample from chromium Issue 340865

Fixes ticket #3362.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit a0911b059763b8f13c70adcbbe71e10382855104)