TIKA-4802: Expose the MP4 video bitrate (video:bitrate) - #2984
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JIRA: https://issues.apache.org/jira/browse/TIKA-4802
MP4Parserreads the average audio bitrate from the sound track'sesds(TIKA-4779) but does not expose the video track's bitrate. A newTikaMp4VideoHandler(mirroringTikaMp4SoundHandler) reads the average bitrate from the video sample entry'sbtrtBitRateBox and sets it asvideo:bitrate.Tested against a 1.8 KB ffmpeg-generated clip (
testMP4Video.mp4,btrtavgBitrate 6536). Theesdspath (legacy MPEG-4 Part 2 video) is out of scope; modern H.264/HEVC carry the bitrate inbtrt.Overlaps #2982 (TIKA-4800), which adds the same
Video.javaandtestMP4Video.mp4fixture; whichever merges second has a trivial rebase.