being played has subtitles available

 jtiger renderer is dirty - this plays nice with high nominal fps
 videos with lots of drop frames

Avoids displaying duplicate frames, except once per second.

 record the start to offset from, not just the first time, or seeking
 will cause reported position to be wrong.

 so that the -ov- version now works again; while there, also look
 at Theora timestamps.

 using jheora/jorbis directly

 versions of Cortado may not have all of them.

 decide not to render it again when it is not necessary

 now added with a fake sink; this allows playing music with lyrics,
 and paves the way for exposing timed text to Javascript.

 a stream's MIME type - this allows the Kate decoder to add language
 and category fields, and in turn allows the pipeline to select a
 Kate stream by language/category before the decoder is started,
 avoiding missing subtitles starting at time 0.

Patch by Benjamin Schwartz: "This patch allows playback to proceed slower than realtime if no audio is present."

 to avoid corner cases (eg, if we get a PNG image, which we don't support yet)

tweak buffer settings for audio queue (not leaking) and video queue (usually leaking) to prevent some unwanted frame drops. Also enable leaking in the video queue only if audio is present.

when creating a copy of the quant matrices with the DC-coefficient set to the value of the primary frame quantizer: Don't copy the values in a loop, there's System.arraycopy