Reduces flakiness of tests that assert on PCM audio. Tests now have to
clearly choose how they want the capturing muxer to handle pcm audio.
Note that the only dump files that have changed are those that deal
with PCM audio (.wav, sowt, twos, silence). Because of the continuous
nature of PCM, timestamps are not part of the dump.
PiperOrigin-RevId: 623155302
If the mixer is reset without resetting maxPositionOfRemovedSources and
then reused, the value of maxPositionOfRemovedSources can be outdated,
leading to an incorrect number of bytes being output by the mixer.
PiperOrigin-RevId: 619832502
This property is transformer specific and does not belong to
muxer interface.
This is to eventually replace muxer interface in Transformer module with
muxer interface in Muxer module.
PiperOrigin-RevId: 618895836
Issue: androidx/media#725
Ideally the test to transmux a `ts` file (having 3 bytes NAL start code)
should go into `Mp4MuxerEndToEndTest`but `Mp4MuxerEndToEndTest` uses `MediaExtractor` and `MediaExtractor` is returning samples with `4 byte NAL start code` which will not exercise the newly added code path.
Hence the test is added in `TransformerWithInAppMuxerEndToEndTest` which
internally uses `media3 extractor` and feeds samples with `3 bytes NAL start code`
only.
PiperOrigin-RevId: 617985866
Seeking will consist of the following steps:
- Block the AudioGraph input data.
- Flush the AudioGraph.
- Seek the ExoPlayers.
- Unblock the AudioGraph input data.
PiperOrigin-RevId: 617868124
When flushing the AudioGraph, the AudioMixer will be preserved but the
sources will be recreated. This is probably a bit less efficient but
makes the logic simpler. Indeed, if we had to keep the sources alive,
we would need to add a way to reconfigure them with a new timestamp for
seeking. We would also need to change the way sources are ended because
they are currently removed when they are ended. Also, it is acceptable
to have a small delay when seeking, which means that performance is less
critical than for playback.
PiperOrigin-RevId: 615775501
getSupportedEncoderNamesForHdrEditing became getSupportedEncodersForHdrEditing at some point, but this comment wasn't updated before...
PiperOrigin-RevId: 615712707
Plumbing hdrMode through the default asset loader factory via the constructor is problematic because it breaks API boundaries. It means there is another way to set hdrMode outside of Composition.java and TransformationRequest.java, which is error prone and cause problems if someone an app starts customizing the assetloaderfactory. It also means custom asset loaders can't receive this information without hacking around.
The introduction of the composition-level settings class makes this approach easily extensible for other settings applied on the composition level but use in an individual asset level basis (e.g. ultraHDR support).
PiperOrigin-RevId: 611466920
MediaCodec docs already allude to potentially mismatching H.264 level
between container and bitstream. Relax the initialization data check to
reflect this.
PiperOrigin-RevId: 608942322
TestUtil class is more appropriate for the given method.
In the next CL, the only method in FileUtil.java will be moved back
into transformer library and the FileUtil class will be removed.
PiperOrigin-RevId: 605648034
The new API will take both `creation time` and `modification time`.
Till now, Mp4Muxer wrote `modification time` in both
`creation time` and `modification time` field, which was
incorrect.
PiperOrigin-RevId: 605590623
Earlier implementation compared the whole file against a golden
data. The new implementation compares only the metadata being tested.
This will avoid updating the golden data when any unrelated change
(unrelated to scenario being tested) is made.
Added a separate test to compare the whole output file against a golden data.
PiperOrigin-RevId: 604692985
Before supporting transmuxing when both no op effects and regular rotations are set, move setting the muxerWrapper rotation out of shouldTranscodeVideo() to ensure the muxerWrapper rotation is only set at the appropriate times.
This cl also ensures the state between the muxerWrapper and the list of video effects is consistent by clearing the list of videoEffects in trim optimization. If trim optimisation is being applied, then EditedMediItem.effects.videoEffects only contains no-op effects or regular rotations that get be applied in the muxer wrapper. Therefore, we should clear the list of video effects to ensure that no effect gets applied twice.
PiperOrigin-RevId: 604292052
* getPcmFormat Util method already sets the mime type as AUDIO_RAW.
* static final AudioFormat consts improve test case readability.
PiperOrigin-RevId: 602740007
This allows us to also plumb whether we're doing MediaCodec tone-mapping,
which will be used in a follow-up CL in the ExoAssetLoaderVideoRenderer.
PiperOrigin-RevId: 601774435
Allow setAdditionalRotationDegrees to be called with same rotation after tracks added. This is needed for processes that mux files partially trim optimization so they don't error out after hitting the check state
Manually tested to ensure trim optimization succeeds, automated test added here as well
PiperOrigin-RevId: 601081778
This file is CBR encoded with LAME, so it has an `Info` header (the CBR
equivalent to `Xing`).
A follow-up change will use this file in `Mp3ExtractorTest`.
Issue: androidx/media#878
PiperOrigin-RevId: 595938327
Mp4Muxer does not support out of order B-frames. Currently it
silently writes out of order B-frames, producing an invalid file (with
negative sample durations).
Although `Mp4Extractor` is somehow able to process this invalid file and
`Exoplayer` is able to play it but that is unexpected.
The `sample.mp4` test file contains B frames. Other test files does not
contain `H264 video + AAC audio` format hence created a new test file by
running `sample.mp4` via `Transformer` after applying some effects.
PiperOrigin-RevId: 594016144
