The implementation of these methods was updated from direct java integer
arithmetic in 885ddb167e.
In this change, `RoundingMode.FLOOR` was used to try and maintain
compatibility with java integer division. This was incorrect, because
java integer division uses `DOWN` (i.e. towards zero), rather than
`FLOOR` (i.e. towards negative infinity) semantics.
This change fixes the compatibility.
The dump file changes in this CL relate to tests that exercise edit
list behaviour. This involves manipulating negative timestamps, which
explains why they are impacted by this change.
PiperOrigin-RevId: 684013175
This CL also fixes EOS handling to account for not-yet-copied samples in
`remainingInputToCopyFrameCount`, which would throw off the final output
sample count calculation.
For testing, we allow a tolerance of 0.000017% drift between expected
and actual number of output samples. The value was obtained from running
100 iterations of `timeStretching_returnsExpectedNumberOfSamples()` and
calculating the average delta percentage between expected and actual
number of output samples. Roughly, this means a tolerance of 40 samples
on a 90 min mono stream @48KHz.
PiperOrigin-RevId: 683133461
The workaround in ExternalTextureManager.forceSignalEndOfStream
was being applied even when the decoder did output all frames, and only
the GL pipeline was slow.
This change ensures that workaround is not applied when the decoder
has already produced all output frames.
PiperOrigin-RevId: 680471587
Some devices can encode portrait 720x1080 but not landscape
1080x720. But VideoSampleExporter always prefers encoding
landscape. Have `assumeFormatsSupported` mirror sample exporter
logic more closely
PiperOrigin-RevId: 679495210
To avoid rounding errors, set the `Rounding mode` of the `uvFromVu` and `vuFromUs` results to `HALF_UP`. This `Rounding mode` rounds numbers towards the "nearest neighbor" unless both neighbors are equidistant, in which case round up.
PiperOrigin-RevId: 679003943
This CL adds `SonicTest` and `RandomParameterizedSonicTest` as
initial basic unit testing for `Sonic.java`. The tested scenarios
do not necessarily verify a correct implementation of Sonic, but rather
hope to catch any behaviour change from the current implementation.
The change includes a small fix for a lossy simplification and also
checks whether the output sample count matches the expected drift from
the truncation accumulation error present in Sonic's resampler. This is
important as pre-work for fixing issues with unexpected durations within
`SonicAudioProcessor` and `SpeedChangingAudioProcessor` that cause AV
sync issues for speed changing effects.
This is a partial roll forward of e88d6fe459, which was rolled back in
873d485056.
PiperOrigin-RevId: 677756854
to
LAST_SAMPLE_DURATION_BEHAVIOR_SET_FROM_END_OF_STREAM_BUFFER_OR_DUPLICATE_PREVIOUS
This CL also combines LAST_SAMPLE_DURATION_BEHAVIOR_SET_FROM_END_OF_STREAM_BUFFER
and LAST_SAMPLE_DURATION_BEHAVIOR_DUPLICATE_PREVIOUS.
The reason for combining the two enums is that, when the option
to use END_OF_STREAM_BUFFER is selected and if the EOS buffer is
not provided then the muxer anyways fallbacks to duplicate
duration behavior.
The last sample with 0 durations seems less useful so
change the default behavior to non-zero duration.
This will also match the behavior with MediaMuxer.
PiperOrigin-RevId: 675189932
Sonic would accumulate truncation errors on float to int conversions
that caused the final output sample count to drift noticeably, by
hundreds of samples on streams of a few minutes of length. The fix now
keeps track of the truncation error and compensates for it.
Other small fixes include eliminating lossy operations (e.g. int
division) and using doubles instead of floats for resampling where
helpful.
This CL also introduces `SonicParameterizedTest`, which helps test
resampling on an arbitrary number of randomly generated parameters,
with random sample data. `SonicParameterizedTest` uses `BigDecimal`s
for calculating sample count values, as to avoid precision issues with
large sample counts.
PiperOrigin-RevId: 673852768
When processing edit lists in MP4 files, the media start position may be a non-keyframe. To ensure proper playback, the decoder must preroll to the preceding keyframe, as these preroll samples are essential for decoding but are not rendered.
Issue: google/ExoPlayer#1659
#cherrypick
PiperOrigin-RevId: 673457615
Limit input image size in Transformer to be less than 4096x4096.
For very large images, this can reduce memory usage substantially,
and stays away from `GL_MAX_TEXTURE_SIZE` - often 4096
PiperOrigin-RevId: 670555939
These tests do not test performance. Moving them out of this directory
ensures they are run on emulators and on all physical devices.
PiperOrigin-RevId: 670505992
MediaMuxer doesn't support B-frame before API 25.
The fix is added only in those test which appeared in triage failure.
It can be added to other tests as they are discovered.
PiperOrigin-RevId: 670480966
Make ByteBufferGlEffect public.
Build a speed test, and end to end test that verify
frames can be copied to CPU-accessible ByteBuffer
PiperOrigin-RevId: 670213343
These tests do not test performance. Moving them out of this directory
ensures they are run on emulators and on more than 1 physical device.
PiperOrigin-RevId: 668859017
The logic was assuming that the shader program was only flushed when
seeking. This is true if a single renderer is used but, with multiple
renderers, the shader program can be flushed at the transition.
This change is necessary to make the test pass for prewarming because 2
video renderers will be used in that case.
PiperOrigin-RevId: 666215967
The audio mixing is not deterministic on real device testing because of
threading, but runs deterministically on robolectric tests
PiperOrigin-RevId: 662925912
Use ExoPlayer dynamic scheduling to reduce the render() interval for
older API devices where `DefaultCodec.getMaxPendingFrameCount()` is set
to 1 in order to prevent frame drops.
Controlled via API on DefaultDecoderFactory.
Add TransformerForegroundSpeedTest that mimics transcoding while the app
is in foreground.
PiperOrigin-RevId: 662925764
