Hi
I need to transmit video h264 with KLV meta data
I succeeded to send encoded video using appsrc element
Now I am trying to send metdata using appsrc the same way that I use to send
video
Instead of config appsrc to video I config It as meta data klv
*this is the function for config appsrc for klv:*
mSource = gst_element_factory_make("appsrc",
"app_src");
gst_app_src_set_stream_type(GST_APP_SRC(mSource),
GST_APP_STREAM_TYPE_STREAM);
g_object_set(mSource,"format" , GST_FORMAT_TIME,NULL);
*The capsfilter for the appsrc:*
mSourceCaps = gst_caps_new_simple("video/x-raw",
"format",G_TYPE_STRING,FrameFormatToStringLut[mVideoProperties.mFrameProperties.mFormat].c_str(),
"width",G_TYPE_INT,mVideoProperties.mFrameProperties.mWidth,
"height",G_TYPE_INT,mVideoProperties.mFrameProperties.mHeight,
"framerate",GST_TYPE_FRACTION,mVideoProperties.mFramePerSecond,1,
NULL);
mSourceFilter = gst_element_factory_make("capsfilter",
"source_caps");
g_object_set(G_OBJECT(mSourceFilter),"caps",mSourceCaps,NULL);
gst_caps_unref(mSourceCaps);
*The function for sending buffer on appsrc:*
static GstClockTime sTimeStamp = 0;
GstBuffer* lBuffer = NULL;
GstFlowReturn lRetValue = GST_FLOW_OK;
lBuffer =
gst_buffer_new_allocate(NULL,inSize,NULL);
gst_buffer_fill (lBuffer,0,inData,inSize);
//update buffer playing timestamp
GST_BUFFER_PTS(lBuffer) = sTimeStamp;
if (!GST_BUFFER_PTS_IS_VALID(lBuffer))
{
g_printerr("Failed to setup PTS");
}
GST_BUFFER_DURATION(lBuffer) =
gst_util_uint64_scale_int(1,GST_SECOND,mVideoProperties.mFramePerSecond);
sTimeStamp += GST_BUFFER_DURATION(lBuffer);
lRetValue =
gst_app_src_push_buffer((GstAppSrc*)mSource,lBuffer);
when I am trying to play the pipeline no packets sent.
1. I glad to know why I play pipeline no packet sent
2. If someone have an example of code sending appsrc as klv with video
stream
Thanks!
Eli
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