mirrors/gstreamer
mirrors/gstreamer
1
1
Fork 0
mirror of https://gitlab.freedesktop.org/gstreamer/gstreamer.git synced 2024-11-27 20:21:24 +00:00
Code Issues 1 Projects Releases Wiki Activity

faad: reverse playback; cater for decoder delay

Browse source 
... thereby actually using the gather and decode queues.
This commit is contained in:
Mark Nauwelaerts 2010-09-29 10:13:06 +02:00
parent 636d1caf0d
commit de97a994ba
1 changed files with 30 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

30
ext/faad/gstfaad.c
View file

@ -528,6 +528,12 @@ clear_queued (GstFaad * faad)
g_list_foreach (faad->queued, (GFunc) gst_mini_object_unref, NULL); g_list_foreach (faad->queued, (GFunc) gst_mini_object_unref, NULL);
g_list_free (faad->queued); g_list_free (faad->queued);
faad->queued = NULL; faad->queued = NULL;
g_list_foreach (faad->gather, (GFunc) gst_mini_object_unref, NULL);
g_list_free (faad->gather);
faad->gather = NULL;
g_list_foreach (faad->decode, (GFunc) gst_mini_object_unref, NULL);
g_list_free (faad->decode);
faad->decode = NULL;
} }
static GstFlowReturn static GstFlowReturn
@ -556,10 +562,24 @@ gst_faad_drain (GstFaad * faad)
{ {
GstFlowReturn ret = GST_FLOW_OK; GstFlowReturn ret = GST_FLOW_OK;
GST_DEBUG_OBJECT (faad, "draining");
if (faad->segment.rate < 0.0) { if (faad->segment.rate < 0.0) {
/* also decode tail = head of previous fragment to fill this one */
while (faad->decode) {
GstBuffer *buf = GST_BUFFER_CAST (faad->decode->data);
GST_DEBUG_OBJECT (faad, "processing delayed decode buffer");
gst_faad_chain (faad->sinkpad, buf);
faad->decode = g_list_delete_link (faad->decode, faad->decode);
}
/* if we have some queued frames for reverse playback, flush /* if we have some queued frames for reverse playback, flush
* them now */ * them now */
ret = flush_queued (faad); ret = flush_queued (faad);
/* move non-decoded leading buffers gathered in previous run
* to decode queue for this run */
faad->decode = g_list_reverse (faad->gather);
faad->gather = NULL;
} else { } else {
/* squeeze any possible remaining frames that are pending sync */ /* squeeze any possible remaining frames that are pending sync */
gst_faad_chain (faad->sinkpad, NULL); gst_faad_chain (faad->sinkpad, NULL);
@ -1216,6 +1236,16 @@ gst_faad_chain (GstPad * pad, GstBuffer * buffer)
goto out; goto out;
} }
} }
} else {
if (faad->packetised && faad->segment.rate < 0.0) {
/* leading non-decoded frames used as tail
* for next preceding fragment */
outbuf = gst_adapter_take_buffer (faad->adapter, available);
available = 0;
outbuf = gst_buffer_make_metadata_writable (outbuf);
GST_BUFFER_FLAG_UNSET (outbuf, GST_BUFFER_FLAG_DISCONT);
faad->gather = g_list_prepend (faad->gather, outbuf);
}
} }
/* adjust to incoming new timestamp, if any, after decoder delay */ /* adjust to incoming new timestamp, if any, after decoder delay */