Some audio cards will fail at configuring the hardware parameters with snd_pcm_hw_params_set_near().
The solution is to use snd_pcm_hw_params_set_buffer_time_min() instead of snd_pcm_hw_params_set_buffer_time_near(),
since the latter restricts buffer time so much that other parameters cannot be adjusted. Hence
the call to snd_pcm_hw_params_set_buffer_time_near() will fail and return an error for movies
with audio rate of 44100 Hz.

In libvlccore the stats are int64_t, thus make libvlc_media_stats_t use them too.

There are no needs to keep a copy of this on the stack. Besides, the
value could change if we supported threaded audio decoding.

tp is another extension for ts.

This occurs in case of large buffer underflow, such as if stopping the
VLC process.

Cork state could change asynchronously without the PA lock.

(Maybe the option should be renamed also)

in empty directory

Input picture to a filter is never NULL. And even if it were NULL, the
pointer is dereferenced earlier...