ffplay: use frame->pkt_pts instead of pkt->pts in audio pts calculation

Fixes ticket #2717.

Signed-off-by: Marton Balint <cus@passwd.hu>
ffplay: always send zero packets to flush audio decoders

Zero packets are needed not for codecs with CODEC_CAP_DELAY but for
multithreaded decoders as well.

Signed-off-by: Marton Balint <cus@passwd.hu>
x86: lpc: fix a segfault in av_evaluate_lls_sse2()
vorbisdec: propagate errors from setup_classifs()

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
vorbisdec: Check VLC tables during use instead of setup

Fixes regression and Ticket2720

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Merge remote-tracking branch 'qatar/master'

* qatar/master:
  x86: lpc: fix a segfault in av_evaluate_lls_sse2()

Merged-by: Michael Niedermayer <michaelni@gmx.at>
Revert "avutil/x86: disable ff_evaluate_lls_sse2() for 32bit"

This reverts commit 247425241cb3b2b76df1c2aced5ce0d56126b82d.
Merge remote-tracking branch 'cus/stable'

* cus/stable:
  ffplay: always send zero packets to flush audio decoders
  ffplay: use frame->pkt_pts instead of pkt->pts in audio pts calculation

Merged-by: Michael Niedermayer <michaelni@gmx.at>
Avoid a null pointer dereference in avcodec_decode_audio4().

This could happen if oom occured while probing a file.
Fixes ticket #2722.