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af_scaletempo2: truncate final packet to expected length

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Avoid generating too much audio after EOF.

Note: This often has no effect, because less audio is produced than
required.

Usually this comes to effect with the userspeed filter at high speed
(4x) and going back to 1x speed to remove the filter.
This commit is contained in:
ferreum 2023-08-13 15:12:41 +02:00 committed by Niklas Haas
parent 8080d00d7f
commit e05591ef59
1 changed files with 14 additions and 0 deletions
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14
audio/filter/af_scaletempo2.c
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@ -111,6 +111,20 @@ static void process(struct mp_filter *f)
double frame_delay = mp_scaletempo2_get_latency(&p->data, p->speed)
+ out_samples * p->speed;
mp_aframe_set_pts(out, pts - frame_delay / mp_aframe_get_effective_rate(out));
if (p->sent_final) {
double remain_pts = pts - mp_aframe_get_pts(out);
double rate = mp_aframe_get_effective_rate(out) / p->speed;
int max_samples = MPMAX(0, (int) (remain_pts * rate));
// truncate final packet to expected length
if (out_samples >= max_samples) {
out_samples = max_samples;
// reset the filter to ensure it stops generating audio
// and mp_scaletempo2_frames_available returns false
mp_scaletempo2_reset(&p->data);
}
}
}
mp_aframe_set_size(out, out_samples);