We currently only force the first frame if the frame timestamp is
greater than the stream *offset*.
This is wrong for two reasons:
1. The timestamp and the offset are not comparable and it should be
the stream start position.
2. The check should only be applied at stream transitions where we
need to make sure that a new first frame isn't rendered until we
passed the transition point.
We have to fix both issues together, because fixing just issue (1)
causes seeks to before the start position to no longer render the
frame (and playback will be stuck). A new test covers this case.
We also amend the stream transition test case to actually test what it
promises to test and add a test for prerolling samples at the
beginning, to ensure the first frame is still renderered.
Issue: androidx/media#291
PiperOrigin-RevId: 552858967
We currently use 3 different booleans to track the state of the first
frame rendering, which implies that there are 8 distinct possible
overall states. However, this is actually a staged process and there
are only 3 different overall states in the current code. This means
it's clearer and easier to reason about if the variables are combined
to a single state value. Overall, this should be a complete no-op.
State mapping:
- rFFAReset=false, rFFAEnable=false, mayRenderFFAEINS=false
=> FIRST_FRAME_NOT_RENDERED_ONLY_ALLOWED_IF_STARTED
- rFFAReset=false and/or rFFAEnable=false, mayRenderFFAEINS=any
=> FIRST_FRAME_NOT_RENDERED
- rFFAReset=true, rFFAEnable=true, mayRenderFFAEINS=any
=> FIRST_FRAME_RENDERED
PiperOrigin-RevId: 552857802
Refactored `CmcdLog` to `CmcdHeadersFactory` for improved representation of its purpose and updated implementations.
#minor-change
PiperOrigin-RevId: 552831995
This allows for custom implementations of this interface, like
a TestVideoCompositor or partner-implemented implementation
PiperOrigin-RevId: 552541631
`SubtitleExtractor` used to rely on a `SubtitleDecoder`. However, now all SubtitleDecoders that are used for side-loaded subtitles have been migrated to a `SubtitleParser` interface. We can therefore refactor the extractor.
The `SubtitleExtractor` is only used for side-loaded subtitles which means we do not require the migration of the CEA-608/708 `SubtitleDecoders`.
PiperOrigin-RevId: 552471710
Fix short term reference picture list parsing. Before this change, `deltaPocS0`
was derived by adding one to the value of the syntax element
`delta_poc_s0_minus1`, but (maybe surprising) the specification actually says
that `DeltaPocS0[stRpsIdx][i]` should be assigned the negation
`-(delta_poc_s0_minus1[i] + 1)` on the first iteration, then that value added
to the previous value on previous iterations. See equations (7-67) to (7-70) in
the 2021-08 version of the H.265/HEVC specification.
Also read the number of long term reference pictures once rather than on every
loop iteration (subsection 7.3.2.2.1).
PiperOrigin-RevId: 551852999
After this change, every queued bitmap is treated as an individual input stream
(like a new MediaItems).
This change merges the FrameDropTest and FrameDropPixelTest into one (while maintaining all the test cases)
- This is accomplished by generating bitmaps with timestamps on it in FrameDropTest and compare them with goldens (one may call this a pixel test, please lmk if you want this to be renamed)
- The most part of the change comes from DefaultVideoFrameProcessorVideoFrameRenderingTest. The overall working is
- We bypass the input manager
- The TestFrameGenerator generates frames based on timestamps. In this case, we generate frames with timestamps on it
- The generated frame is sent to texture output and in turn saved to bitmaps
- We then compare the generated bitmap with the goldens
PiperOrigin-RevId: 551795770
Move shared test logic to the test runner.
This does increase indirection, which isn't usually preferable in tests.
However, we will have many different tests that would use logic
like this, so this allows us to reduce repetition.
PiperOrigin-RevId: 551536438
1. For codecs that change timestamps, we need to use greater
or equal instead of just equal for comparison.
2. We should only make this comparison once a value has been
set.
3. The largest queue timestamp isn't updated before using it
for this detection, meaning that we also mark the
second-to-last sample as the last one.
PiperOrigin-RevId: 550901978
This should make no functional difference because `SampleExporter` always
checks for H.265 and H.264 first. However, in case we ever change that code,
these are used in priority order so it's better to order them accordingly.
PiperOrigin-RevId: 550894935
We currently pass in the time at which the stream originally started,
but newly enabled renderers should get the current playback position
instead.
PiperOrigin-RevId: 550894630
When generating silence for AudioProcessingPipeline, audio never
queued EOS downstream.
Linked to this, when silence followed an item with audio, the silence
was added to SilentAudioGenerator before the mediaItem reconfiguration
occurred. If the silence had effects, the APP would be flushed after
silence queued EOS, resetting APP.isEnded back to false, so AudioGraph
never ended.
Regression tests reproduce failure without fix, but pass with it.
PiperOrigin-RevId: 550853714
For each event, the timestamp and presentation time is logged. The trace can
then be dumped to a tsv file and easily imported in a spreadsheet.
PiperOrigin-RevId: 550839156
Instead of `text/x-exoplayer-cues`, we will use `application/x-media3-cues`.
The prefix should be `application` not `text` since the encoded form is arbitrary bytes, not necessarily text. The name should not reference `exoplayer`, since the Media3 Extractors (which are not part of `exoplayer`) produce this format.
PiperOrigin-RevId: 550181852
signalEndOfInputStream is needed for when streams have different amounts of
frames, so that if the primary stream finishes after a secondary stream, it
can end without waiting indefinitely for the secondary stream's matching
timestamps.
onEnded mirrors this API on the output side, which will be necessary to
know when to call signalEndOfInput on downstream components (ex. on downstream)
VideoFrameProcessors
PiperOrigin-RevId: 549969933
The VideoFrameProcessingTaskExecutor already handles wrapping
GlUtil.GlException errors into VideoFrameProcessingExceptions.
Therefore, stop wrapping this ourselves, so that errors are
attributed to the correct line number with less indirection.
PiperOrigin-RevId: 549959258
Alters the OverlayShaderProgram implementation to support rotations, however we need to apply the transformations separately in order for them to work as expected so the matrix is removed from the interface in favour of explicit methods.
Adds a rotation test to ensure this ability doesn't regress
PiperOrigin-RevId: 549890847
The `MediaNotificationManager` registers an internal controller
to each session. This change marks this controller through its
connection hints and provides an API for apps to hide
implementation details of the marking.
Issue: androidx/media#389
PiperOrigin-RevId: 549712768
`TtmlDecoder` which used to be `SimpleSubtitleDecoder` will now be called `TtmlParser` and implement SubtitleParser interface. For backwards compatibility, we will have the same functionality provided by `DelegatingSubtitleDecoder` backed-up by a new `TtmlParser` instance.
PiperOrigin-RevId: 549700490
