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lamemp3enc: Tell GstAudioEncoder about the number of incoming samples

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lame does internal resampling, but the base class only cares about
the number of raw samples, so tell finish frames about that, not
the number of samples in the outgoing frame.:
This commit is contained in:
Olivier Crête 2013-05-09 19:40:49 -04:00
parent 62ac56668a
commit c9e20af4cb
1 changed files with 9 additions and 1 deletions
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10
ext/lame/gstlamemp3enc.c
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@ -653,6 +653,7 @@ gst_lamemp3enc_finish_frames (GstLameMP3Enc * lame)
guint rate, version, layer, size;
GstBuffer *mp3_buf;
const guint8 *data;
guint samples_per_frame;
data = gst_adapter_map (lame->adapter, 4);
header = GST_READ_UINT32_BE (data);
@ -677,11 +678,18 @@ gst_lamemp3enc_finish_frames (GstLameMP3Enc * lame)
break;
}
/* Account for the internal resampling, finish frame really wants to
* know about the number of incoming samples
*/
samples_per_frame = (version == 1) ? 1152 : 576;
samples_per_frame *= lame->samplerate;
samples_per_frame /= lame->out_samplerate;
/* should be ok now */
mp3_buf = gst_adapter_take_buffer (lame->adapter, size);
/* number of samples for MPEG-1, layer 3 */
result = gst_audio_encoder_finish_frame (GST_AUDIO_ENCODER (lame),
mp3_buf, version == 1 ? 1152 : 576);
mp3_buf, samples_per_frame);
}
exit: