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baseparse: reflow update_bitrate code

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... which makes local variables represent real state better, and avoids
triggering unneeded updates/actions.
This commit is contained in:
Mark Nauwelaerts 2010-10-25 14:15:50 +02:00
parent 841e09e234
commit 61cf6f2ffa
1 changed files with 25 additions and 19 deletions
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44
gst/audioparsers/gstbaseparse.c
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@ -1140,27 +1140,30 @@ gst_base_parse_update_bitrates (GstBaseParse * parse, GstBuffer * buffer)
GST_LOG_OBJECT (parse, "frame bitrate %u, avg bitrate %u", frame_bitrate, GST_LOG_OBJECT (parse, "frame bitrate %u, avg bitrate %u", frame_bitrate,
parse->priv->avg_bitrate); parse->priv->avg_bitrate);
if (frame_bitrate < parse->priv->min_bitrate) { if (parse->priv->framecount < MIN_FRAMES_TO_POST_BITRATE) {
parse->priv->min_bitrate = frame_bitrate; goto exit;
update_min = TRUE; } else if (parse->priv->framecount == MIN_FRAMES_TO_POST_BITRATE) {
/* always post all at threshold time */
update_min = update_max = update_avg = TRUE;
} else {
if (frame_bitrate < parse->priv->min_bitrate) {
parse->priv->min_bitrate = frame_bitrate;
update_min = TRUE;
}
if (frame_bitrate > parse->priv->max_bitrate) {
parse->priv->max_bitrate = frame_bitrate;
update_max = TRUE;
}
old_avg_bitrate = parse->priv->posted_avg_bitrate;
if ((gint) (old_avg_bitrate - parse->priv->avg_bitrate) > update_threshold
|| (gint) (parse->priv->avg_bitrate - old_avg_bitrate) >
update_threshold)
update_avg = TRUE;
} }
if (frame_bitrate > parse->priv->max_bitrate) { if ((update_min || update_avg || update_max))
parse->priv->max_bitrate = frame_bitrate;
update_max = TRUE;
}
old_avg_bitrate = parse->priv->posted_avg_bitrate;
if ((gint) (old_avg_bitrate - parse->priv->avg_bitrate) > update_threshold ||
(gint) (parse->priv->avg_bitrate - old_avg_bitrate) > update_threshold)
update_avg = TRUE;
/* always post all at threshold time */
if (parse->priv->framecount == MIN_FRAMES_TO_POST_BITRATE)
gst_base_parse_post_bitrates (parse, TRUE, TRUE, TRUE);
if (parse->priv->framecount > MIN_FRAMES_TO_POST_BITRATE &&
(update_min || update_avg || update_max))
gst_base_parse_post_bitrates (parse, update_min, update_avg, update_max); gst_base_parse_post_bitrates (parse, update_min, update_avg, update_max);
/* If average bitrate changes that much and no valid (time) duration provided, /* If average bitrate changes that much and no valid (time) duration provided,
@ -1170,6 +1173,9 @@ gst_base_parse_update_bitrates (GstBaseParse * parse, GstBuffer * buffer)
GST_CLOCK_TIME_IS_VALID (parse->priv->duration))) GST_CLOCK_TIME_IS_VALID (parse->priv->duration)))
gst_element_post_message (GST_ELEMENT (parse), gst_element_post_message (GST_ELEMENT (parse),
gst_message_new_duration (GST_OBJECT (parse), GST_FORMAT_TIME, -1)); gst_message_new_duration (GST_OBJECT (parse), GST_FORMAT_TIME, -1));
exit:
return;
} }
/** /**