Without this, it is possible that a non timestamp master instances
the adjuster with its own chunk start time. When chunks are not
aligned, this breaks adjustment.
Issue:#2424
-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=149764488
CacheDataSource allows null DataSink. Do the same in CacheDataSourceFactory.
-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=149750696
Caption characters weren't being assigned to the correct window and the lack of
pen location support was causing multiple lines (and words) to be concatenated.
As per the CEA-708-B specification, section 8.10.5, when we encounter a DefineWindow
command, we're also supposed to update the current window to the newly defined one.
We were not doing this previously, resulting in text that should have been in separate
windows being combined into one. Furthermore, some content uses the SetPenLocation
command to move the cursor down a line instead of appending a new line. As we don't
currently support SetPenLocation, this resulted in multiple lines (and words) being
concatenated together, potentially causing the text to extend past the edge of the
window/screen. This change implements a workaround (until SetPenLocation is properly
supported) for this issue in which setting the pen location to a new row will append
a new-line to that window.
-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=149679613
As per the CEA-708-B specification, section 8.10.4, cues don't necessarily
need either an ETX command or any of the C1 commands before being updated
with the latest buffered content. While those commands do indicate that the
cues should be updated immediately, the cues can also be updated after a
service block has been processed if it appended text to the buffer.
-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=149673162
This allows the client to define what data source is used for
media chunks, encryption chunks and playlists.
-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=149537766
I think it's likely we'll revert back to discarding media
in sync with the playback position for ExtractorMediaSource
and HlsMediaSource too, where the tracks are muxed with ones
we're requesting anyway.
Note: discardBuffer is named as it is because it'll also be
used to discard for enabled tracks soon, as a result of the
remaining TODO in ChunkSampleStream. For enabled tracks the
discard will also be conditional on the samples having been
consumed, obviously.
Issue: #2362
Issue: #2176
-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=149525857
We use the segments' start time when the timestmap is not present.
-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=149006252
This method can be used to determine not cached parts of a content.
The 'length' parameter allows quicker responses without going through all adjacent spans.
-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=149005688
This allows building a TsPayloadReader.Factory without
having to wrap the default one.
-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=149004102
This mode allows the extractor to support streams with multiple
programs declared in the PAT, but only one PMT. This is necessary
to support tuner-obtained media.
-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=148636312
textWidth can be negative if textLeft extends parentRight (i.e.
the subtitle is positioned entirely off the screen to the RHS).
We should just discard and log a warning in this case.
Issue: #2497
-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=148481310
This change exposes declared CEA-608 and EMSG tracks. The
tracks currently provide no samples.
Issue: #2362
Issue: #2176
-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=148390849
I'm going to introduce an EmptySampleStream that will be used in
some cases in conjunction as part of 608/EMSG support. This change
avoids EmptySampleStream having to provide a dummy format.
-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=148383831
At the end of playback, BufferProcessors need to be drained to process all
remaining data, then the output needs to be written to the AudioTrack before
stop() is called.
-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=148339194
This allows the TsExtractor to automatically determine the
closed caption tracks to expose by parsing available
descriptors.
Issue:#2161
-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=148321380
This allows BufferProcessors to partially and/or asynchronously handle
input/output. Document contract for queueInput and getOutput.
Update ResamplingBufferProcessor to use the new interface.
Separate submitting bytes vs. writing data to the AudioTrack.
-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=148212269
This CL allows passing multiple formats describing CC channels to the
TS payload reader factory. As a simple usecase, ATSC can expose both
608 channels by passing a two element list with the corresponding
accessibility channels. The HLS media source can construct this list
from the EXT-X-MEDIA:TYPE="CLOSED-CAPTIONS" tags, including language
and selection flags. The interface extends without modification to
708.
Pending work:
* Multiple CC channels in HLS.
* caption_service_descriptor parsing for overriding the user's selection.
* 708 support in SEI reader.
-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=148030293
This avoids breaking the player if the first variant is not
supported by the device.
Issue:#2353
-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=148025791
