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media/libraries/extractor
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ibaker bf8b8749fe JpegMotionPhotoExtractor: Don't emit an image track with no metadata 
The current implementation of `JpegMotionPhotoExtractor.sniff` returns
`true` for any image with Exif data (not just motion photos). Improving
this is tracked by b/324033919. In the meantime, when we 'extract' a
non-motion photo with `JpegMotionPhotoExtractor`, the result is
currently a single empty image track and no video track (since there's
no video, since this isn't a motion photo). This 'empty' image track
is usually used to transmit metadata about the video parts of the
image file (in the form of `MotionPhotoMetadata`), but this metadata is
also (understandably) absent for non-motion photos. Therefore there's
no need to emit this image track at all, and it's clearer to emit no
tracks at all when extracting a non-motion photo using
`JpegMotionPhotoExtractor`.

This change also removes a `TODO` that is misplaced, since there's no
image bytes being emitted here (and never was).

PiperOrigin-RevId: 604688053
(cherry picked from commit 7ae3d69e00)
2024-02-08 17:30:16 +00:00
..
src JpegMotionPhotoExtractor: Don't emit an image track with no metadata 2024-02-08 17:30:16 +00:00
build.gradle Make CueSerializationTest more realistic 2023-11-27 07:16:19 -08:00
proguard-rules.txt Release MIDI decoder module in open-source 2023-06-02 09:18:09 +00:00
README.md Fix javadoc links in media README files 2023-03-30 17:26:40 +00:00

README.md

Extractor module

Provides media container extractors and related utilities. Application code will not normally need to depend on this module directly.

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