- Add constants class. Currently housing a single lonely variable,
which is used generally throughout the library, and so no longer
nicely fits into a specific class.
- Rename a few other constants to add clear units.
- Made minor tweak to ExoPlayer documentation.
1. Use ints rather than longs.
2. Remove some counters that dont seem hugely useful.
3. Replace use of volatile with explicit method calls that
cause a memory barrier. This is a lot more efficient than
using volatile because it can be invoked only once per
doSomeWork.
- Make MediaCodecTrackRenderer.isReady more permissive.
This largely fixes#21
- Bring WebmExtractor closer to FragmentedMp4Extractor.
The two will probably be placed under a common interface
fairly soon, which will allow significant code
deduplication.
* Remove concept of being prepared by simply reporting if format
and/or cues are known.
* Allow replacement of format and/or cues later in the stream.
* Initialization and index segments can be parsed independently
of one another but must be in order due to internal WebM dependencies.
* Let seekTo() work even when cues are unknown.
This paves the way for SegmentTemplate and SegmentList based
mpds, which will implement DashSegmentIndex directly rather than
parsing an index from the media stream.
- Define DashSegmentIndex.
- Make use of DashSegmentIndex in chunk sources.
- Define an implementation of DashSegmentIndex that wraps a SegmentIndex.
- Add method that will allow Representations to return a DashSegmentIndex
directly in the future.
- Add support for non-contiguous index and initialization data in media streams.
For the Webm case this isn't enabled yet due to extractor limitations.
- Removed ability to fetch multiple chunks. This functionality does not extend
properly to SegmentList and SegmentTemplate variants of DASH.
Why: This was a bad initial choice. Manifests typically define bandwidth in
bits/sec. If you divide by 8 then you're throwing away information due to
rounding. Unfortunately it turns out that SegmentTemplate based manifests
require you to be able to recall the bitrate exactly (because it's substituted
in during segment URL construction).
Medium term: We should consider converting all our bandwidth estimation
over to bits/sec as well.
Note1: Also changed Period id to be a string, to match the mpd spec.
Note2: Made small optimization in FormatEvaluator to not consider discarding
the first chunk (durationBeforeThisSegmentUs will always be negative, and even
in the error case where it's not, removing the first thunk should be an error).
- Allow the content type of an adaptation set to be inferred
from the mimeTypes of the contained representations.
- Ensure the contained mimeTypes are consistent with one
another, and with the adaptation set.
Ref: Issue #2
- Add support for parsing avc3 boxes.
- Make workaround for signed sample offsets in trun files always enabled.
- Generalize remaining workaround into a flag, to make it easy to add additional workarounds going forward without changing the API.
- Fix DataSourceStream bug where read wouldn't return -1 having fully read segment whose spec length was unbounded.
This can help custom ChunkSource implementations to act on
this information. For example an adaptive implementation may
choose to blacklist a problematic format if loads of that
format keep failing.
AudioTrack time will go out of sync if the decodeOnly flag
is set of arbitrary samples (as opposed to just those following
a seek). It's a pretty obscure case and it would be weird for
anyone to do it, but we should be robust against it anyway.
1. Fix SimpleCache startReadWrite asymmetry. Allow more concurrency.
- startReadWrite does not have the concept of a read lock. Once
a cached span is returned, the caller can do whatever it likes
for as long as it wants to. This allows a read to be performed
in parallel with a write that starts after it.
- If there's an ongoing write, startReadWrite will block even if
the return operation will be a read. So there's a weird asymmetry
where reads can happen in parallel with writes, but only if the
reads were started first.
- This CL removes the asymmetry, by allowing a read to start even
if the write lock is held.
- Note that the reader needs to be prepared for the thing it's
reading to disappear, but this was already the case, and will
always be the case since the reader will need to handle disk
read failures anyway.
2. Add isCached method.
