diff options
| author | Max Kellermann <max@musicpd.org> | 2020-10-16 18:32:30 +0200 |
|---|---|---|
| committer | Max Kellermann <max@musicpd.org> | 2020-10-16 18:39:29 +0200 |
| commit | 1db533c8cfe2b76c6914d6ac3d490f5057611b35 (patch) | |
| tree | 7de1762e6acacdd8ae43589b7121f51b7092b521 /src | |
| parent | 78ee663660f5e38321f6bb66b4e66e1380888f37 (diff) | |
decoder/opus: move formula to EbuR128ToReplayGain()
Diffstat (limited to 'src')
| -rw-r--r-- | src/decoder/plugins/OpusDecoderPlugin.cxx | 19 |
1 files changed, 12 insertions, 7 deletions
diff --git a/src/decoder/plugins/OpusDecoderPlugin.cxx b/src/decoder/plugins/OpusDecoderPlugin.cxx index 05200e07a..4257b31e5 100644 --- a/src/decoder/plugins/OpusDecoderPlugin.cxx +++ b/src/decoder/plugins/OpusDecoderPlugin.cxx @@ -63,6 +63,17 @@ IsOpusTags(const ogg_packet &packet) noexcept return packet.bytes >= 8 && memcmp(packet.packet, "OpusTags", 8) == 0; } +/** + * Convert an EBU R128 value to ReplayGain. + */ +constexpr float +EbuR128ToReplayGain(float ebu_r128) noexcept +{ + /* add 5dB to compensate for the different reference levels + between ReplayGain (89dB) and EBU R128 (-23 LUFS) */ + return ebu_r128 + 5; +} + bool mpd_opus_init([[maybe_unused]] const ConfigBlock &block) { @@ -249,13 +260,7 @@ MPDOpusDecoder::HandleTags(const ogg_packet &packet) { ReplayGainInfo rgi; rgi.Clear(); - - /** - * Add 5dB to compensate for the different - * reference levels between ReplayGain (89dB) and EBU R128 (-23 LUFS). - */ - rgi.track.gain = output_gain + 5; - rgi.album.gain = output_gain + 5; + rgi.track.gain = rgi.album.gain = EbuR128ToReplayGain(output_gain); TagBuilder tag_builder; AddTagHandler h(tag_builder); |