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hlsdemux: Always calculate the current download rate

Browse source 
Also take into account the last download rate when
calculating it.
This commit is contained in:
Sebastian Dröge 2014-03-09 18:41:28 +01:00
parent da601be78f
commit 7ddd67baef
2 changed files with 27 additions and 8 deletions
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32
ext/hls/gsthlsdemux.c
View file

@ -935,6 +935,8 @@ gst_hls_demux_reset (GstHLSDemux * demux, gboolean dispose)
gst_element_remove_pad (GST_ELEMENT_CAST (demux), demux->srcpad);
demux->srcpad = NULL;
}
demux->current_download_rate = -1;
}
static gboolean
@ -1227,15 +1229,11 @@ gst_hls_demux_switch_playlist (GstHLSDemux * demux, GstFragment * fragment)
{
GstClockTime diff;
gsize size;
gint bitrate;
gint64 bitrate;
GstBuffer *buffer;
GST_M3U8_CLIENT_LOCK (demux->client);
if (!demux->client->main->lists || !fragment) {
GST_M3U8_CLIENT_UNLOCK (demux->client);
if (!fragment)
return TRUE;
}
GST_M3U8_CLIENT_UNLOCK (demux->client);
/* compare the time when the fragment was downloaded with the time when it was
* scheduled */
@ -1244,10 +1242,28 @@ gst_hls_demux_switch_playlist (GstHLSDemux * demux, GstFragment * fragment)
size = gst_buffer_get_size (buffer);
bitrate = (size * 8) / ((double) diff / GST_SECOND);
GST_DEBUG ("Downloaded %d bytes in %" GST_TIME_FORMAT ". Bitrate is : %d",
(guint) size, GST_TIME_ARGS (diff), bitrate);
GST_DEBUG_OBJECT (demux,
"Downloaded %d bytes in %" GST_TIME_FORMAT ". Bitrate is : %d",
(guint) size, GST_TIME_ARGS (diff), (gint) bitrate);
/* Take old rate into account too */
if (demux->current_download_rate != -1)
bitrate = (demux->current_download_rate + bitrate * 3) / 4;
if (bitrate > G_MAXINT)
bitrate = G_MAXINT;
demux->current_download_rate = bitrate;
GST_DEBUG_OBJECT (demux, "Using current download rate: %d", (gint) bitrate);
gst_buffer_unref (buffer);
GST_M3U8_CLIENT_LOCK (demux->client);
if (!demux->client->main->lists) {
GST_M3U8_CLIENT_UNLOCK (demux->client);
return TRUE;
}
GST_M3U8_CLIENT_UNLOCK (demux->client);
return gst_hls_demux_change_playlist (demux, bitrate * demux->bitrate_limit);
}

3
ext/hls/gsthlsdemux.h
View file

@ -99,6 +99,9 @@ struct _GstHLSDemux
/* Cache for the last key */
gchar *key_url;
GstFragment *key_fragment;
/* Current download rate (bps) */
gint current_download_rate;
};
struct _GstHLSDemuxClass