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本帖最后由 zp279 于 2017-10-14 18:28 编辑
Linux-3.0.35
开发板：EK200，使用P1的网口，不是USB扩展的
用qt4.85调用gstreamer0.1开发组播播放视频，视频不连续，很卡。
明远这边有UDP组播的demo吗？我的邮箱是 zp279@163.com
我们有项目快要上小批量了，时间很紧张，麻烦了！！！！
调试串口提示很多以下信息
Discont detected from 0:00:00.500000000 to 1:10:46.532788000
Discont detected from 0:00:00.500000000 to 1:10:46.556011000
Discont detected from 0:00:00.500000000 to 1:10:46.579233000
Discont detected from 0:00:00.500000000 to 1:10:46.602444000
Discont detected from 0:00:00.500000000 to 1:10:46.625666000
Discont detected from 0:00:00.500000000 to 1:10:46.648888000
Discont detected from 0:00:00.500000000 to 1:10:46.672111000
Discont detected from 0:00:00.500000000 to 1:10:46.695333000
Discont detected from 0:00:00.500000000 to 1:10:46.718544000
Discont detected from 0:00:00.500000000 to 1:10:46.741766000
Discont detected from 0:00:00.500000000 to 1:10:46.764988000
Discont detected from 0:00:00.500000000 to 1:10:46.788211000
主要代码
CQMedia::CQMedia(int winID,QWidget* win, DevType type,QObject* parent):
CQGstBasic(winID,win,parent)
{
if(type == ROOM||type == SUBVIDEO)
qosMax = 20;
else if(type == CAR)
qosMax = 20;
devType = type;
silenceState = false;
this->pipeline=gst_pipeline_new( "pipeline" );
//构造各组件
GstElement *udpsrc = gst_element_factory_make("udpsrc","udpsrc");
g_object_set(G_OBJECT(udpsrc),"do-timestamp",false,NULL);
g_object_set(G_OBJECT(udpsrc),"timeout",(quint64)2000000,NULL);
GstElement *queue0 = gst_element_factory_make("queue","queue0");
g_object_set(G_OBJECT(queue0),"max-size-time",(guint64)0,NULL);
GstElement *rtpmp2tdepay = gst_element_factory_make("rtpmp2tdepay","rtpmp2tdepay");
GstElement *queue1 = gst_element_factory_make("queue","queue1");
g_object_set(G_OBJECT(queue1),"max-size-time",(guint64)0,NULL);
GstElement *aiurdemux = gst_element_factory_make("aiurdemux","aiurdemux");
g_object_set(G_OBJECT(aiurdemux),"streaming_latency",(guint64)5000,NULL);
GstElement *queue2 = gst_element_factory_make("queue","queue2");
g_object_set(G_OBJECT(queue2),"max-size-time",(guint64)0,NULL);
GstElement *v_dec = gst_element_factory_make("vpudec","v_dec");
g_object_set(G_OBJECT(v_dec),"parser",false,"dbkenable",false,"profiling",false,
"framedrop",true,"min-latency",true,"fmt",(guint64)0,NULL);
GstElement *v_sink = gst_element_factory_make("mfw_v4lsink","v_sink");
g_object_set(G_OBJECT(v_sink),"sync",true,"x11enable",true,NULL);
GstElement *queue3 = gst_element_factory_make("queue","queue3");
g_object_set(G_OBJECT(queue3),"max-size-time",(guint64)0,NULL);
GstElement *a_dec = gst_element_factory_make("beepdec","a_dec");
GstElement *a_conv = gst_element_factory_make("audioconvert","audioconvert");
GstElement *capsfilter = gst_element_factory_make("capsfilter","capsfilter");
GstCaps *a_caps = gst_caps_from_string("audio/x-raw-int, channels=2");
g_object_set(G_OBJECT(capsfilter),"caps",a_caps,NULL);
GstElement *audiovol = gst_element_factory_make("volume","audiovol");
GstElement *a_sink = gst_element_factory_make("alsasink","a_sink");
g_object_set(G_OBJECT(a_sink),"sync",true,NULL);
//串连组件
gst_bin_add_many (GST_BIN (pipeline), udpsrc,queue0,rtpmp2tdepay,queue1,aiurdemux,
queue2,v_dec,queue3,a_dec,a_conv,capsfilter,audiovol,a_sink,v_sink,NULL);
gst_element_link_many ( udpsrc,queue0,rtpmp2tdepay,queue1,aiurdemux,NULL);
gst_element_link_many ( queue2,v_dec,v_sink,NULL);
g_signal_connect (aiurdemux, "pad-added", G_CALLBACK (pad_added_handler),queue2);
gst_element_link_many ( queue3,a_dec,a_conv,capsfilter,audiovol,a_sink,NULL);
g_signal_connect (aiurdemux, "pad-added", G_CALLBACK (pad_added_handler), queue3);
GstBus* bus=gst_pipeline_get_bus(GST_PIPELINE(pipeline));
gst_bus_add_watch(bus,bus_callback,this);
gst_object_unref(bus);
gst_element_set_state(pipeline,GST_STATE_NULL);
this->state=STOPPED;
}
bool CQMedia::loadURL(const QString& url)
{
qDebug("CQMedia::loadURL");
QString tmp = url;
tmp.remove(0,6);
QString ip = tmp.split(QChar(':'))[0];
int port = tmp.split(QChar(':'))[1].toInt();
this->url = url;
GstElement *udpsrc = gst_bin_get_by_name(GST_BIN(pipeline),"udpsrc");
GstCaps *caps = gst_caps_new_simple("application/x-rtp",NULL);
QString uri = url;
g_object_set(G_OBJECT(udpsrc),"uri",uri.toUtf8().data(),"caps",caps,NULL);
gst_object_unref(udpsrc);
return true;
}
void CQMedia::setVolume(double _volume)
{
volume=_volume;
if(silenceState)
return;
GstElement *vol = gst_bin_get_by_name((GstBin *)pipeline,"audiovol");
if(vol != NULL)
g_object_set(vol,"volume",lineFun(volume),NULL);
}
double CQMedia::getVolume()
{
return this->volume;
}
void CQMedia::setSilence(bool toggle)
{
if(toggle)
{
GstElement *vol = gst_bin_get_by_name((GstBin *)pipeline,"audiovol");
if(vol != NULL)
g_object_set(vol,"volume",0.0,NULL);
}
else
{
GstElement *vol = gst_bin_get_by_name((GstBin *)pipeline,"audiovol");
if(vol != NULL)
g_object_set(vol,"volume",lineFun(volume),NULL);
}
silenceState = toggle;
}
void CQMedia::_updateDecoder()
{
GstElement *videodecoder = gst_bin_get_by_name((GstBin*)pipeline,"v_dec");
GstStateChangeReturn ret=gst_element_set_state(videodecoder,GST_STATE_NULL);
if(GST_STATE_CHANGE_SUCCESS==ret)
{
qDebug("set videodecoder to null SUCCESS!!");
if(gst_bin_remove(GST_BIN(pipeline),videodecoder))
{
qDebug("remove videodecoder success!!");
int refCount = GST_OBJECT_REFCOUNT_VALUE(videodecoder);
for(int i = 0;i < refCount; i++)
gst_object_unref(videodecoder);
videodecoder = gst_element_factory_make("vpudec","v_dec");
g_object_set(G_OBJECT(videodecoder),"parser",false,"dbkenable",false,"profiling",false,
"framedrop",true,"min-latency",true,"fmt",(guint64)0,NULL);
GstElement *queue2 = gst_bin_get_by_name((GstBin*)pipeline,"queue2");
GstElement *v_sink = gst_bin_get_by_name((GstBin*)pipeline,"v_sink");
gst_bin_add_many (GST_BIN (pipeline),videodecoder,NULL);
if(gst_element_link_many ( queue2,videodecoder,v_sink,NULL))
{
qDebug("link videodecoder SUCCESS!!");
}
else
{
qDebug("link videodecoder FAILED!!");
}
gst_object_unref(queue2);
gst_object_unref(v_sink);
}
else
{
qDebug("remove videodecoder failed!!");
}
}
else
{
qDebug("set videodecoder to null FAILED!! 456");
}
}
void CQMedia::_updateDemux()
{
GstElement *aiurdemux = gst_bin_get_by_name((GstBin*)pipeline,"aiurdemux");
if (aiurdemux==NULL)
qDebug("-------111-------ERROR:aiurdemux==NULL");
GstStateChangeReturn ret=gst_element_set_state(aiurdemux,GST_STATE_NULL);
if(GST_STATE_CHANGE_SUCCESS==ret)
{
qDebug("set aiurdemux to null SUCCESS!!");
if(gst_bin_remove(GST_BIN(pipeline),aiurdemux))
{
qDebug("remove aiurdemux success!!");
if (aiurdemux == NULL)
qDebug("-------222-------ERROR:aiurdemux==NULL");
sleep(1);
gst_object_unref(aiurdemux);
aiurdemux = gst_element_factory_make("aiurdemux","aiurdemux");
if(devType == ROOM || devType == SUBVIDEO)
g_object_set(G_OBJECT(aiurdemux),"streaming_latency",(guint64)3000,NULL);
else
g_object_set(G_OBJECT(aiurdemux),"streaming_latency",(guint64)3000,NULL);
GstElement *queue1 = gst_bin_get_by_name((GstBin*)pipeline,"queue1");
GstElement *queue2 = gst_bin_get_by_name((GstBin*)pipeline,"queue2");
GstElement *queue3 = gst_bin_get_by_name((GstBin*)pipeline,"queue3");
qDebug("queue3 is %p",queue3);
gst_bin_add_many (GST_BIN (pipeline),aiurdemux,NULL);
if(gst_element_link ( queue1,aiurdemux))
{
qDebug("link aiurdemux SUCCESS!!");
}
else
{
qDebug("link aiurdemux FAILED!!");
}
g_signal_connect (aiurdemux, "pad-added", G_CALLBACK (pad_added_handler), queue2);
g_signal_connect (aiurdemux, "pad-added", G_CALLBACK (pad_added_handler), queue3);
qDebug("queue %d , %d ,%d!!",queue1,queue2,queue3);
gst_object_unref(queue1);
gst_object_unref(queue2);
gst_object_unref(queue3);
}
else
{
qDebug("remove aiurdemux failed!!");
}
}
else
{
qDebug("set aiurdemux to null FAILED!!");
}
}
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发表于 2017-10-14 18:23:14
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楼主
发表于 2017-10-16 09:10:58
