how to Appsink to Finalizing File?

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how to Appsink to Finalizing File?

killerrats
I successfully grabbed the buffer and written the video to a file but when I open the video file it doesn't let me skip ahead or go backwards. I closed the file successfully. I used the gst_element_send_event(_videoD.srcPipeline,gst_event_new_eos()); and it end the stream. Do I have to finalize the video file somehow?

I'm writing to a avi file. I'm using a avimux.
------------------------------
Gstreamer 1.14.3
------------------------------
Windows
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Re: how to Appsink to Finalizing File?

Sebastian Dröge-3
On Di, 2016-09-13 at 08:42 -0700, killerrats wrote:
> I successfully grabbed the buffer and written the video to a file but when I
> open the video file it doesn't let me skip ahead or go backwards. I closed
> the file successfully. I used the
> gst_element_send_event(_videoD.srcPipeline,gst_event_new_eos()); and it end
> the stream. Do I have to finalize the video file somehow?
>
> I'm writing to a avi file. I'm using a avimux.

appsink does not support any seeking, so on EOS it won't be able to
rewrite headers or anything.

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Sebastian Dröge, Centricular Ltd · http://www.centricular.com
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Re: how to Appsink to Finalizing File?

killerrats
I have finally figured out how to rewrite the file. I'm now trying to figure out how to:
1. block vtee and atee
2. send eos through avimux
4. null avimux
5. remove avimux
6. add avimux
7. relink the atee and vtee to queues
8. link appsink
9. play avimux

I can do this process if it doesn't have the audio split but once I add the audio it seems to stop after playing the avimux again. Anybody have any idea why it wont replay again.

///// -------------- PIPELINE ------------- /////////////
                 - - - - q1 - - - rtph264depay - - - - h264parse - - - - vtee - - \
               /                                                                                               q3- - - - \   avimux - - appsink
source --                                                                                                       q4 - -/
               \ - - - - q2 - - - rtpmp4gdepay - - - aacparse - - - faad - - - atee - -/

________________________________________
\/ ---- CODE  BELOW ----- \/
________________________________________

/// ---- METHODS ------ ////////
int main()
static GstPadProbeReturn event_probe_cb (GstPad * pad, GstPadProbeInfo * info, gpointer user_data);
static GstPadProbeReturn pad_probe_cb (GstPad * pad, GstPadProbeInfo * info, gpointer user_data);
static gboolean timeout_cb (gpointer user_data);


/// ------------- MAIN ----------- //////////
int main()
{
GstElement * src,* depay,* parse,* dec,* q1,* q2,* testsrc;
        GMainLoop * loop;

        HWND console = GetConsoleWindow();
    //RECT r;
       
        //GetWindowRect(console,&r);
        MoveWindow(console, 1300, 0,1280, 1024, TRUE);
       

        int DebugNumber = 1;

        //debug level 1,2,3,4,5
        gst_debug_set_threshold_from_string(("*:"+std::to_string(DebugNumber)).c_str(),TRUE);

        //Initialize GStreamer
        gst_init(&argc,&argv);

        _videoData.srcPipeline = gst_pipeline_new ("pipeline");

        _videoData.source = gst_element_factory_make ("rtspsrc", NULL);
        g_object_set (_videoData.source, "location", "[IP]", NULL);
        g_object_set (_videoData.source, "protocols", 4, NULL);

        _videoData.rtpdepay = gst_element_factory_make ("rtph264depay", "depay");
        _videoData.parse = gst_element_factory_make ("h264parse", "parse");
        _videoData.decodebin = gst_element_factory_make ("avdec_h264", "decode");
        _videoData.appsink = gst_element_factory_make ("appsink", "sink");
        g_object_set(GST_OBJECT(_videoData.appsink),"emit-signals",TRUE,NULL);
        _videoData.q1 = gst_element_factory_make ("queue", "video-queue");
        _videoData.q2 = gst_element_factory_make("queue","q2");
        _videoData.q3 = gst_element_factory_make("queue","video-queueRec");
        _videoData.q4 = gst_element_factory_make("queue","audio-queueRec");
        _videoData.mux = gst_element_factory_make("avimux","avimux");
        _videoData.vtee = gst_element_factory_make("tee","videotee");
        _videoData.atee = gst_element_factory_make("tee","audiotee");

        //audio
        _videoData.q2 = gst_element_factory_make("queue","audio-queue");
        _videoData.audioRtpDepay = gst_element_factory_make("rtpmp4gdepay","adepay");
        _videoData.audioParse = gst_element_factory_make("aacparse","audioparse");
        _videoData.audioDec = gst_element_factory_make("faad","audiodecode");

        gst_bin_add_many(GST_BIN(_videoData.srcPipeline)
                        ,_videoData.source
                        ,_videoData.q1,_videoData.rtpdepay,_videoData.parse,_videoData.vtee
                        ,_videoData.q2,_videoData.audioRtpDepay,_videoData.audioParse,_videoData.audioDec,_videoData.atee
                        ,_videoData.q3,_videoData.q4,_videoData.mux
                        ,NULL);

/ --- LINKING OBJECTS... --- /

                std::cout << std::endl << "linked main pipeline" << std::endl;
               
                // Request source pads from tee and sink pads from bin
                _videoData.SourcePadVideoQ3ToMux = gst_element_get_static_pad(_videoData.q3,"src");
                _videoData.SinkPadVideoQ3ToMux = gst_element_get_request_pad(_videoData.mux,"video_00");
                gst_pad_link(_videoData.SourcePadVideoQ3ToMux,_videoData.SinkPadVideoQ3ToMux);
               
                _videoData.SourcePadAudioQ4ToMux = gst_element_get_static_pad(_videoData.q4,"src");
                _videoData.SinkPadAudioQ4ToMux = gst_element_get_request_pad(_videoData.mux,"audio_00");
                gst_pad_link(_videoData.SourcePadAudioQ4ToMux,_videoData.SinkPadAudioQ4ToMux);

                std::cout << std::endl << "linked record pipeline" << std::endl;
                // Create ghost pads on the bin and link to queues
                GstPad* sinkpad;
                sinkpad = gst_element_get_static_pad(_videoData.q3, "sink");
                gst_element_add_pad(_videoData.q3, gst_ghost_pad_new("videosink", sinkpad));
                gst_object_unref(GST_OBJECT(sinkpad));
                sinkpad = gst_element_get_static_pad(_videoData.q4, "sink");
                gst_element_add_pad(_videoData.q4, gst_ghost_pad_new("audiosink", sinkpad));
                gst_object_unref(GST_OBJECT(sinkpad));

                std::cout << std::endl << "rec pipeline to pause state" << std::endl;
                // set the new bin to PAUSE to preroll
                //gst_element_set_state(_videoData.muxcont, GST_STATE_PAUSED);
               
                // Request source pads from tee and sink pads from bin
                GstElement* element;
                element = gst_bin_get_by_name (GST_BIN(_videoData.srcPipeline), "videotee");
                _videoData.SourcePadVideoVTeeToQ3 = gst_element_get_request_pad(element, "src_00");
                _videoData.SinkPadVideoVTeeQ3 = gst_element_get_static_pad(_videoData.q3, "videosink");
                element = gst_bin_get_by_name (GST_BIN(_videoData.srcPipeline), "audiotee");
                _videoData.SourcePadAudioATeeToQ4 = gst_element_get_request_pad(element, "src_00");
                _videoData.SinkPadAudioATeeToQ4 = gst_element_get_static_pad(_videoData.q4, "audiosink");
                std::cout << std::endl << "add rec pipeline to main pipeline" << std::endl;
                //gst_bin_add(GST_BIN(_videoData.srcPipeline),_videoData.muxcont);
                gst_pad_link(_videoData.SourcePadVideoVTeeToQ3, _videoData.SinkPadVideoVTeeQ3);
                gst_pad_link(_videoData.SourcePadAudioATeeToQ4, _videoData.SinkPadAudioATeeToQ4);
                gst_bin_add(GST_BIN(_videoData.srcPipeline),_videoData.appsink);
               
                if(!elementLinking(_videoData.mux,_videoData.appsink,"\nFailed Link mux to appsink\n"))
                        return false;

                g_signal_connect(_videoData.source, "pad-added", G_CALLBACK(cb_new_rtspsrc_pad),&_videoData);
                g_signal_connect(_videoData.appsink, "new-sample", G_CALLBACK(appsink_ToFile),&_videoData);
                g_signal_connect(_videoData.appsink, "eos", G_CALLBACK(check_for_eos),&_videoData);
               
                BlockVideoPad = _videoData.SourcePadVideoVTeeToQ3;
                BlockAudioPad = _videoData.SourcePadAudioATeeToQ4;

        gst_element_set_state (_videoData.srcPipeline, GST_STATE_PLAYING);

        loop = g_main_loop_new (NULL, FALSE);

        gst_bus_add_watch (GST_ELEMENT_BUS (_videoData.srcPipeline), bus_cb, loop);

        g_timeout_add_seconds (4, timeout_cb, loop);
return 0;
}
/ ------------------------ METHOD ---------------------- /
static GstPadProbeReturn
event_probe_cb (GstPad * pad, GstPadProbeInfo * info, gpointer user_data)
{
        GMainLoop *loop = (GMainLoop *)user_data;
        GstElement *next;
        GstElement* temp;
        GstPad* srcpad,*sinkpad;

        if (GST_EVENT_TYPE (GST_PAD_PROBE_INFO_DATA (info)) != GST_EVENT_EOS)
        return GST_PAD_PROBE_PASS;

        if(gst_pad_is_blocked(pad)==FALSE)
                return GST_PAD_PROBE_PASS;

        gst_pad_remove_probe (pad, GST_PAD_PROBE_INFO_ID (info));
 
        //g_print ("Switching from '%s' to '%s'..\n", GST_OBJECT_NAME (cur_effect),
                //GST_OBJECT_NAME (next));
        g_print("\nSwitching\n");

        gst_element_set_state (_videoData.mux, GST_STATE_NULL);

        g_print("\ndone setting state\n");
        // remove unlinks automatically
        //GST_DEBUG_OBJECT (pipeline, "removing %" GST_PTR_FORMAT, _videoData.muxcont);
        gst_bin_remove (GST_BIN (_videoData.srcPipeline), _videoData.mux);
 
        //GST_DEBUG_OBJECT (pipeline, "adding   %" GST_PTR_FORMAT, _videoData.muxcont);
        gst_bin_add (GST_BIN (_videoData.srcPipeline), _videoData.mux);
 
       
        // Request source pads from tee and sink pads from bin
        CheckPadLinkReturn(gst_pad_link(_videoData.SourcePadVideoQ3ToMux,_videoData.SinkPadVideoQ3ToMux));
        CheckPadLinkReturn(gst_pad_link(_videoData.SourcePadAudioQ4ToMux,_videoData.SinkPadAudioQ4ToMux));
       
        gst_pad_unlink(_videoData.SourcePadVideoVTeeToQ3, _videoData.SinkPadVideoVTeeQ3);
        gst_pad_unlink(_videoData.SourcePadAudioATeeToQ4, _videoData.SinkPadAudioATeeToQ4);
       
        // Request source pads from tee and sink pads from bin
        std::cout << std::endl << "linking vtee to q3" << std::endl;
        CheckPadLinkReturn(gst_pad_link(_videoData.SourcePadVideoVTeeToQ3, _videoData.SinkPadVideoVTeeQ3));

        std::cout << std::endl << "linking atee to q4" << std::endl;
        CheckPadLinkReturn(gst_pad_link(_videoData.SourcePadAudioATeeToQ4, _videoData.SinkPadAudioATeeToQ4));
       
        std::cout << std::endl << "relinking mux to appsink" << std::endl;
        elementLinking(_videoData.mux,_videoData.appsink,"\nFailed Link mux to appsink\n");

        std::cout << std::endl << "set state of mux to playing" << std::endl;
        gst_element_set_state (_videoData.mux, GST_STATE_PLAYING);

        //cur_effect = next;
        GST_DEBUG_OBJECT (_videoData.srcPipeline, "done");
       
        AlreadPassedEOS == TRUE;

        return GST_PAD_PROBE_DROP;
}

/ ------------------------ METHOD ---------------------- /
static GstPadProbeReturn
pad_probe_cb (GstPad * pad, GstPadProbeInfo * info, gpointer user_data)
{
        GstPad *srcpad;

        GST_DEBUG_OBJECT (pad, "pad is blocked now");
 
        /* remove the probe first */
        gst_pad_remove_probe (pad, GST_PAD_PROBE_INFO_ID (info));
       
        send_eos_element = _videoData.mux;

        /* install new probe for EOS */
        srcpad = gst_element_get_static_pad (send_eos_element, "src");
        gst_pad_add_probe (srcpad, (GstPadProbeType)(GST_PAD_PROBE_TYPE_BLOCK |
                GST_PAD_PROBE_TYPE_EVENT_DOWNSTREAM), event_probe_cb, user_data, NULL);

        gst_object_unref (srcpad);

        /* push EOS into the element, the probe will be fired when the
        * EOS leaves the effect and it has thus drained all of its data */
        //sinkpad = gst_element_get_static_pad (send_eos_element, "sink");
        //gst_pad_send_event (sinkpad, gst_event_new_eos ());
        //gst_object_unref (sinkpad);
        g_print("\nsending eos \n");
        gst_element_send_event(send_eos_element,gst_event_new_eos());

        return GST_PAD_PROBE_OK;
}

/ ------------------------ METHOD ---------------------- /
static gboolean
timeout_cb (gpointer user_data)
{
        gulong c;
        std::cout << std::endl << " Blocking Video" << std::endl;
        c = gst_pad_add_probe (BlockVideoPad, GST_PAD_PROBE_TYPE_BLOCK_DOWNSTREAM,
      pad_probe_cb, user_data, NULL);
        //gst_pad_remove_probe(BlockVideoPad,c);
       
        std::cout << std::endl << " Blocking Audio" << std::endl;
        c = gst_pad_add_probe (BlockAudioPad, GST_PAD_PROBE_TYPE_BLOCK_DOWNSTREAM,
      pad_probe_cb, user_data, NULL);
        //gst_pad_remove_probe(BlockAudioPad,c);
       
  return TRUE;
}
------------------------------
Gstreamer 1.14.3
------------------------------
Windows