* cigaes/master:
  lavfi/vf_yadif: use standard options parsing.
  lavfi/vf_unsharp: use standard options parsing.
  lavfi/vf_transpose: use standard options parsing.
  lavfi/vf_pad: use standard options parsing.
  lavfi/vf_fps: use standard options parsing.
  lavfi/vf_fade: use standard options parsing.
  lavi/vf_drawbox: use standard options parsing.
  lavfi/vf_delogo: use standard options parsing.
  lavfi/vf_decimate: use standard options parsing.
  lavfi/vf_crop: use standard options parsing.
  lavfi/af_volume: use standard options parsing.
  lavfi/vf_tile: use standard options parsing.
  lavfi/avf_concat: use standard options parsing.
  lavfi: add common code to handle options parsing.
  lavf/vobsub: free index pseudo-packet.
  ffmpeg: fix freeing of sub2video frame.
  lavfi: add sine audio source.
  lavu/opt: add AV_OPT_TYPE_DURATION.
  lavfi/concat: fix silence duration computation.
  lavf/concatdec: support seeking.
Merged-by: Michael Niedermayer <michaelni@gmx.at>

This patch adds the enums for the ContentEncryption elements.
This patch also adds support for parsing the ContentEncKeyID. The
ContentEncKeyID is then base64 encoded and stored in the stream's
metadata.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Inside send_silence(), delta_ts was used inconsistently:
sometimes as the new value, sometimes as the old value.

Consistently use it as the new value, and add an argument
to know the last segment duration.

Fixes: otonajoshi_avformat_tries_to_load_whole.ts
Reported-by: JEEB (on IRC)
Thanks-to: nevcairiel
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

* cigaes/master:
  lavu/frame: use channels rather than channel_layout.
  lavf: avformat_seek_file(): validate stream_index.
  lavf/concatdec: fix possible leak in case of malloc failure.
  lavfi/buffersink: check av_frame_ref() failure.
Merged-by: Michael Niedermayer <michaelni@gmx.at>

Floating point FFT (nips optimized) breaks when hard coded tables are
not enabled because MIPS optimization of floating point FFT uses only
ff_init_ff_cos_tabs(16) which is not enabled by default in that case.

This patch is fixing it.
Signed-off-by: Nedeljko Babic <nbabic@mips.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>

Fix CID 747737.

Signed-off-by: Paul B Mahol <onemda@gmail.com>

Signed-off-by: Paul B Mahol <onemda@gmail.com>

Signed-off-by: Bojan Zivkovic <bojan@mips.com>
Reviewed-by: Nedeljko Babic <Nedeljko.Babic@imgtec.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Bojan Zivkovic <bojan@mips.com>
Reviewed-by: Nedeljko Babic <Nedeljko.Babic@imgtec.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

* qatar/master:
  rtmp: Pass the parameters to do_adobe_auth in the right order
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit 'c3ebfcd6':
  mpegvideo: allocate hwaccel privdata after the frame buffer
  h264: allocate hwaccel privdata after the frame buffer
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit 'c71c80f5':
  pthread: unref already decoded frames when flushing the decoder
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '4e70d66d':
  mpegvideo: fix allocation of the hwaccel_picture_private data
  lavc: update the doxy for avcodec_decode_{video,audio} wtih refcounting.
Merged-by: Michael Niedermayer <michaelni@gmx.at>