media/libraries/transformer
sheenachhabra c0e8513b7a Make dump files deterministic
Issue: When running the Transformer related test cases, the tests are flaky
because the order in which audio and video samples are interleaved seems to
differ in few instances.

Root cause: When running a transformation the sample producer (Asset loader)
and sample consumer (Sample pipeline) both runs on different thread and
theoretically there is no reason for behaviour to be deterministic because
the number of samples produced/written depends on how fast individual thread
works. So it is indeed surprising that test somehow worked deterministically in
majority of instances (may be something to do with Robolectric environment).

Solution: Since we don't expect the order of sample interleaving to be deterministic, make the dumping logic deterministic where all the video
samples will be collected and then dumped together (similarly for audio). This would mean we won't be able to see the interleaving so for that we need to
add separate test case verifying the interleaving logic only.

Pending: Test case for interleaving.
PiperOrigin-RevId: 540930871
2023-06-19 16:28:07 +01:00
..
src Make dump files deterministic 2023-06-19 16:28:07 +01:00
build.gradle Replace deprecated NullableType from checkerframework with our own one 2023-06-19 16:08:20 +01:00
README.md Add media3 guide entries in README files 2023-03-30 17:28:03 +00:00

Transformer module

Provides functionality for transforming media files.

Getting the module

The easiest way to get the module is to add it as a gradle dependency:

implementation 'androidx.media3:media3-transformer:1.X.X'

where 1.X.X is the version, which must match the version of the other media modules being used.

Alternatively, you can clone this GitHub project and depend on the module locally. Instructions for doing this can be found in the top level README.