SDK / exoplayer

dev -> dev-hls

Issue: #158

Merge dev -> dev-hls

MediaCodecTrackRenderer: Avoid excessive garbage generation

TsExtractor: Account for frame cropping when parsing SPS

Issue: #153

- Unredact internal error ids.
- Move images.

dev -> dev-hls

Additional IV fix. Trim sign bit from BigInteger.toByteArray() output, if it creates a 17th byte for it. #145

Looking up a long in a HashSet<Long> auto boxes the long and leaves
it for the GC. As decodeOnly is relatively infrequent it's much
better to do a simple linear search in a List<Long>. That way
we can avoid boxing every incoming time stamp value. In the general
case this will be linear searching in an empty list, a very fast
operation.

Signed-off-by: Jonas Larsson <jonas@hallerud.se>

AudioTrack contains the portions of MediaCodecAudioTrackRenderer that handle the
platform AudioTrack instance, including synchronization (playback position
smoothing), non-blocking writes and releasing.

This refactoring should not affect the behavior of audio playback, and is in
preparation for adding an Ac3PassthroughAudioTrackRenderer that will use the
AudioTrack.

Remove implicit back-reference from playback thread to player.

Passing uncropped dimensions to certain decoders will make them
output frames without proper cropping set.

Signed-off-by: Jonas Larsson <jonas@hallerud.se>

dev -> dev-hls

Merge dev-l into dev-hls, now L SDK is released.

Merge dev-l into dev, now L SDK is released.

dev -> dev-l