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fix(player): show audio codec and bitrate in the performance overlay on ExoPlayer

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The Android performance overlay showed only sample rate and channels for
EAC3, FLAC, DTS, TrueHD, and Opus tracks. The overlay reads the codec
from media3's Format.codecs, an RFC 6381 string only MP4/HLS provide
(hence AAC working), and the bitrate from Format.bitrate, which Matroska
carries only when the muxer wrote BPS statistics tags.

Fall back to the already-transmitted sample MIME type for the codec name
(audio and video), and measure the audio bitrate in the FFmpeg demuxer
from packet sizes over their pts span — the same source mpv uses for its
audio-bitrate property — when the container declares none.

close #2063
This commit is contained in:
edde746
2026-08-23 03:44:45 +02:00
parent c201bc2f03
commit 3f55cc461e
8 changed files with 281 additions and 9 deletions
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test/utils/codec_utils_test.dart
+19
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@@ -200,6 +200,25 @@ void main() {
expect(CodecUtils.formatAudioCodec('alac'), 'ALAC');
expect(CodecUtils.formatAudioCodec('weird'), 'WEIRD');
});
test('audio MIME types from ExoPlayer Format.sampleMimeType map to friendly names (#2063)', () {
expect(CodecUtils.formatAudioCodec('audio/mp4a-latm'), 'AAC');
expect(CodecUtils.formatAudioCodec('audio/mpeg'), 'MP3');
expect(CodecUtils.formatAudioCodec('audio/ac3'), 'AC3');
expect(CodecUtils.formatAudioCodec('audio/eac3'), 'E-AC3');
expect(CodecUtils.formatAudioCodec('audio/eac3-joc'), 'E-AC3');
expect(CodecUtils.formatAudioCodec('audio/true-hd'), 'TrueHD');
expect(CodecUtils.formatAudioCodec('audio/vnd.dts'), 'DTS');
expect(CodecUtils.formatAudioCodec('audio/vnd.dts.hd'), 'DTS-HD');
expect(CodecUtils.formatAudioCodec('audio/vnd.dts.hd;profile=lbr'), 'DTS-HD');
expect(CodecUtils.formatAudioCodec('audio/vnd.dts.uhd;audio=p2'), 'DTS:X');
expect(CodecUtils.formatAudioCodec('audio/flac'), 'FLAC');
expect(CodecUtils.formatAudioCodec('audio/opus'), 'Opus');
expect(CodecUtils.formatAudioCodec('audio/vorbis'), 'Vorbis');
expect(CodecUtils.formatAudioCodec('audio/ac4'), 'AC4');
expect(CodecUtils.formatAudioCodec('audio/raw'), 'PCM');
expect(CodecUtils.formatAudioCodec('audio/alac'), 'ALAC');
});
});
group('CodecUtils.formatAudioChannels', () {