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Bug 344 - More intuitive Ffmpeg Quality slider.

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Now the slider is requested bit-rate for both stereo and mono.
e.g. max 160 kbps for mono, 320 kbps for stereo.

Previously it was the requested per-channel bit-rate.
This commit is contained in:
James Crook 2019-07-15 14:21:39 +01:00
parent 6eb612bb73
commit a8d864ea9f
1 changed files with 2 additions and 3 deletions
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5
src/export/ExportFFmpeg.cpp
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@ -402,10 +402,9 @@ bool ExportFFmpeg::InitCodecs(AudacityProject *project)
{
int q = gPrefs->Read(wxT("/FileFormats/AACQuality"),-99999);
mEncAudioCodecCtx->global_quality = q;
q = wxClip( q, 98, 160 );
// Set bit rate to between 98 bps and 320 bps (if two channels)
q = wxClip( q, 98 * mChannels, 160 * mChannels);
// Set bit rate to between 98 kbps and 320 kbps (if two channels)
mEncAudioCodecCtx->bit_rate = q * 1000;
mEncAudioCodecCtx->bit_rate *= mChannels;
mEncAudioCodecCtx->profile = FF_PROFILE_AAC_LOW;
mEncAudioCodecCtx->cutoff = 0;
if (!CheckSampleRate(mSampleRate,