PQ and HLG have different luminance ranges (max 10k nits and max 1k nits resp). In GL, colors work in a normalised 0 to 1 scale, so for PQ content, 1=10k nits and and for HLG content, 1=1k nits.
This cl scales and normalises PQ content appropriately so that all HDR content works in the HLG luminance range. This fixes two things
1. Conversions between HLG and PQ are "fixed" (before the output colors looked too bright or too dark depending on which way you are converting)
2. color-altering effects will be able to work consistently across HLG and PQ content
1 is tested in this cl. 2 will be tested when ultra HDR overlays are implemented, both cases have been manually tested to ensure the output looks correct on a screen.
PiperOrigin-RevId: 636851701
If subtitle-parsing-during-extraction is enabled (now defaults to on),
the 'outer' extractor class name is often
`SubtitleTranscodingExtractor`, leading to some slightly useless error
messages like:
`None of the available extractors (FragmentedMp4Extractor, Mp4Extractor, SubtitleTranscodingExtractor, SubtitleTranscodingExtractor, SubtitleTranscodingExtractor, SubtitleTranscodingExtractor, SubtitleTranscodingExtractor, SubtitleTranscodingExtractor, TsExtractor, MatroskaExtractor, SubtitleTranscodingExtractor, SubtitleTranscodingExtractor, SubtitleTranscodingExtractor, SubtitleTranscodingExtractor, AviExtractor, SubtitleTranscodingExtractor, SubtitleTranscodingExtractor, SubtitleTranscodingExtractor, SubtitleTranscodingExtractor, SubtitleTranscodingExtractor, SubtitleTranscodingExtractor)`
PiperOrigin-RevId: 636834354
Remove redundant test logic to add file size to ExportResult because
the file size is already added to export result as part of an export
finishing.
PiperOrigin-RevId: 636499236
Add composition time offset parameter to TRUN box to
support muxing of videos containing B-frames by FragmentedMp4Muxer.
Update TRUN box version from 0 to 1 in order to manage signed
composition time offset.
PiperOrigin-RevId: 636426397
This is currently set from `Mp3Extractor.synchronizedHeader` which
gets overwritten every time we read a new frame. It seems safer to make
this defensive copy (and there will be at most one `XingFrame` instance
per-playback, so this is not prohibitively expensive).
PiperOrigin-RevId: 636181038
This change avoids a muxer deadlock when:
1. Sequence of items
2. First item has audio track that is shorter than video
3. Audio finishes, and muxer refuses to write more than 500ms of video
consecutively.
SequenceAssetLoader fails to progress to the second item. A muxer
deadlock is possible when the audio of the first item finishes,
audio end-of-stream is not propagated through AudioGraph, and muxer blocks
video, preventing SequenceAssetLoader to move to the next item in sequence.
By triggering silence generation early as soon as audio EOS is
encountered, we ensure SequenceAssetLoader can progress to the next item.
PiperOrigin-RevId: 636179966
`Info` header is used for CBR files, but in some cases not **every**
frame in these files is the same size. This change stops using the
single frame after the `Info` frame as the 'template' (and assuming all
subsequent frames are the same size/bitrate), and instead derives the
bitrate from fields in the `Info` header. This works for files which are
'almost' constant bitrate, like the one in Issue: androidx/media#1376 where every
frame is either 1044 or 1045 bytes except the one immediately after the
`Info` frame which is 104 bytes (32kbps), resulting in a wildly
incorrect duration calculation.
PiperOrigin-RevId: 636151605
This was previously only set on images because it was not ignored on
other media types. This parameter was made no-op for non-images in
7b2a1b4443.
PiperOrigin-RevId: 636078142
This change was originally made in 379cb3ba54.
It was then accidentally lost in when `Cea608Parser` was merged back
into `Cea608Decoder` in 25498b151b.
This was spotted when re-doing a similar lost change to `Cea708Decoder`,
reported in https://github.com/androidx/media/pull/1315.
See reasoning on e2847b3b80
about why this is the only 'lost' CEA-608 change.
PiperOrigin-RevId: 635803536
This change was originally made in 6f8249184b
It was then accidentally lost in when `Cea708Parser` was merged back
into `Cea708Decoder` in 51b4fa2cc8.
This is the only change made to the actual 'decoding' logic in
`Cea708Parser` between it being split from `Cea708Decoder` and merged
back in again, all the other changes in this period relate to the
implementation of the `SubtitleParser` interface, so don't need to be
preserved in `Cea708Decoder`:
51b4fa2cc8/libraries/extractor/src/main/java/androidx/media3/extractor/text/cea/Cea708Parser.java
`Cea608Parser` was also merged back into `Cea608Decoder` in
25498b151b
and so is vulnerable to the same risk of accidental loss of changes. To
be sure, I also checked the history of this file:
25498b151b/libraries/extractor/src/main/java/androidx/media3/extractor/text/cea/Cea608Parser.java
The only 'decoding logic' change there is 379cb3ba54,
which was also lost in 25498b151b.
I will send a separate change to resolve this.
PiperOrigin-RevId: 635796696
This shows ExoPlayer currently wrongly reports the duration of this
sample, because it assumes every frame is 32kbps (104 bytes) due to the
`PCUT` frame immediately after the `Info` frame.
A follow-up change will modify `Info` frame handling to resolve this
issue.
This sample was crafted using a hex editor to insert the additional
`PCUT` frame (the pattern of `null` and `x` is taken from the sample
file in Issue: androidx/media#1376, the header is modified to set the channel count
to 1 to match the rest of the file), and then update the frame count
and data size of the `Info` header to match.
Issue: androidx/media#1376
PiperOrigin-RevId: 635772837
Fragment shaders in OpenGL ES shader language aren't guaranteed
to support highp, required to correctly represent pixel coordinates
inside large images (e.g. 1920x1080).
This change moves coordinate mirroring for images out of fragment shader.
Fixes http://Issue: androidx/media#1331
PiperOrigin-RevId: 635732208
If MediaCodec allocates passes an image buffer with a cropped region,
SurfaceTexture.getTransformMatrix will cut off 2 pixels from each dimensions.
The resulting videos will appear a little stretched.
This patch inspects the SurfaceTexture transform matrix, and guesses what the
unscaled transform matrix should be.
Behind experimentalAdjustSurfaceTextureTransformationMatrix flag
PiperOrigin-RevId: 635721267
Gainmaps don't currently have an equals override, only reference equality is checked by Objects.equals(gainmap1, gainmap2). Create an equals method for gainmaps with the fields we care about to ensure we don't incur false positives in our equality checks.
PiperOrigin-RevId: 635510451
