* use av_audio_resample_init
* new option to output information about files as json array

track audio and video eos separately so they are closer to each other if -s / -e is used to cut out segments

  if seeking between keyframes

  Only text (raw UTF-8 and SSA) is supported.
  SSA tags are not properly removed yet.
* update libkate to 0.3.1

use vstream.time_base if it those values are in range, use r_frame_rate otherwise, fixes issues with some mp4 files that list field and not frame rate in the later

- disable vhooks for now, not working with ffmpeg trunk
- store and use visble height/width before initializing decoder.
  this removes green borders for some flv vp6 files.

* add new option --no-upscaling to give max width, height and/or samplerate/channels without encoding at higher values than input
* fix crop

- fix pkg-config tests on Mac OS X
- add -D_FILE_OFFSET_BITS=64 to support large files again
- make framehook conditional, ffmpeg no longer installs this
  (needs porting to libavfilter)

merged in (happens mostly when there is an error loading an srt file). 
(ogg.k.ogg.k)

mean that the last text packet would arrive too late (after its
presentation time) (ogg.k.ogg.k)