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basertpaudiopayload: Respect ptime if it is given

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If the ptime is given in the caps, respect it and force the minimum
and maximum sizes to be exactly the requested ptime.

https://bugzilla.gnome.org/show_bug.cgi?id=606050
This commit is contained in:
Olivier Crête 2009-12-29 18:45:32 -05:00
parent a4b0f2a1bd
commit bc6179952b
1 changed files with 15 additions and 0 deletions
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15
gst-libs/gst/rtp/gstbasertpaudiopayload.c
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@ -98,6 +98,7 @@ struct _GstBaseRTPAudioPayloadPrivate
guint cached_mtu;
guint cached_min_ptime;
guint cached_max_ptime;
guint cached_ptime;
guint cached_min_length;
guint cached_max_length;
};
@ -516,6 +517,7 @@ gst_base_rtp_audio_payload_get_lengths (GstBaseRTPPayload *
/* check cached values */
if (G_LIKELY (priv->cached_mtu == mtu
&& priv->cached_ptime == basepayload->abidata.ABI.ptime
&& priv->cached_max_ptime == basepayload->max_ptime
&& priv->cached_min_ptime == basepayload->min_ptime)) {
/* if nothing changed, return cached values */
@ -546,8 +548,21 @@ gst_base_rtp_audio_payload_get_lengths (GstBaseRTPPayload *
if (*min_payload_len > *max_payload_len)
*min_payload_len = *max_payload_len;
/* If the ptime is specified in the caps, tried to adhere to it exactly */
if (basepayload->abidata.ABI.ptime) {
guint ptime_in_bytes = priv->time_to_bytes (payload,
basepayload->abidata.ABI.ptime);
/* clip to computed min and max lengths */
ptime_in_bytes = MAX (*min_payload_len, ptime_in_bytes);
ptime_in_bytes = MIN (*max_payload_len, ptime_in_bytes);
*min_payload_len = *max_payload_len = ptime_in_bytes;
}
/* cache values */
priv->cached_mtu = mtu;
priv->cached_ptime = basepayload->abidata.ABI.ptime;
priv->cached_min_ptime = basepayload->min_ptime;
priv->cached_max_ptime = basepayload->max_ptime;
priv->cached_min_length = *min_payload_len;