<div dir="auto">Any update regarding to my query ?</div> <div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, Sep 6, 2023, 20:54 Sulthan Amanu <<a href="mailto:sulthan4380@gmail.com">sulthan4380@gmail.com</a>> wrote: </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Hi Team, I'm attempting to convert a raw buffer into an MP4 format using an appsrc. However, I encountered a problem with frame loss during the conversion of a list of buffers. For instance, I have a list of 150 frames with a frame rate of 10 frames per second (fps), but the resulting MP4 file only contains 13 seconds of video. This means that 2 seconds worth of frames (20 frames) have been lost during the conversion process. Below, you'll find the code for my conversion logic: CODE: void convertToMP4(GstBufferList *buflist) { // Create pipeline for MP4 conversion. GstElement *pipeline, *appsrc, *videoconvert, *videoencode, *muxer, *file_sink; guint64 timestamp_ns = 0; // Initialize with zero or the desired start time in nanoseconds guint frame_duration_ns = GST_SECOND / 10; // 10 frames per second (10 FPS) pipeline = gst_pipeline_new("MP4-pipeline"); appsrc = gst_element_factory_make("appsrc", "source"); file_sink = gst_element_factory_make("filesink", "filesink"); g_object_set(G_OBJECT(appsrc), "stream-type", 0, "format", GST_FORMAT_TIME, NULL); // Set the resolution and framerate caps // GstCaps *caps = gst_caps_new_simple("video/x-raw", // "width", G_TYPE_INT, 1280, // "height", G_TYPE_INT, 720, // "framerate", GST_TYPE_FRACTION, 10, 1, // NULL); // gst_app_src_set_caps (GST_APP_SRC(appsrc),caps); // gst_caps_unref(caps); g_object_set(file_sink, "location", "DIA_VIDEO.mp4", NULL); gst_bin_add_many(GST_BIN(pipeline), appsrc, file_sink, NULL); if (gst_element_link_many(appsrc, file_sink, NULL) != TRUE) { g_printerr("Elements could not be linked in the pipeline.\n"); gst_object_unref(pipeline); exit(1); } copy_buflist = gst_buffer_list_copy_deep(buflist); g_print("isbuffered is filled and Buffer size is %d\n", gst_buffer_list_length(copy_buflist)); gst_element_set_state(pipeline, GST_STATE_PLAYING); for (int frame_number = 0; frame_number < gst_buffer_list_length(copy_buflist); frame_number++) { GstBuffer *buffer = gst_buffer_list_get(copy_buflist, frame_number); // Set the timestamp for the buffer GST_BUFFER_TIMESTAMP(buffer) = timestamp_ns; // Increment the timestamp for the next frame timestamp_ns += frame_duration_ns; // Push the buffer into the pipeline gst_app_src_push_buffer(GST_APP_SRC(appsrc), buffer); } // retval = gst_app_src_push_buffer_list(GST_APP_SRC(appsrc), copy_buflist); g_print("RETVAL %d\n", retval); g_print("Sending EOS!!!!!!!"); g_signal_emit_by_name(appsrc, "end-of-stream", &retval); } Can you please provide a solution on my problem. Regards, Sulthan</div> </blockquote></div>